Adding upstream version 2.06.upstream/2.06upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

95 files changed, 19689 insertions, 0 deletions

diff --git a/grub-core/commands/acpi.c b/grub-core/commands/acpi.c
new file mode 100644
index 0000000..1215f2a
--- /dev/null
+++ b/grub-core/commands/acpi.c
@@ -0,0 +1,791 @@
+/* acpi.c - modify acpi tables. */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/extcmd.h>
+#include <grub/file.h>
+#include <grub/disk.h>
+#include <grub/term.h>
+#include <grub/misc.h>
+#include <grub/acpi.h>
+#include <grub/mm.h>
+#include <grub/memory.h>
+#include <grub/i18n.h>
+#include <grub/lockdown.h>
+
+#ifdef GRUB_MACHINE_EFI
+#include <grub/efi/efi.h>
+#include <grub/efi/api.h>
+#endif
+
+#pragma GCC diagnostic ignored "-Wcast-align"
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const struct grub_arg_option options[] = {
+  {"exclude", 'x', 0,
+   N_("Don't load host tables specified by comma-separated list."),
+   0, ARG_TYPE_STRING},
+  {"load-only", 'n', 0,
+   N_("Load only tables specified by comma-separated list."), 0, ARG_TYPE_STRING},
+  {"v1", '1', 0, N_("Export version 1 tables to the OS."), 0, ARG_TYPE_NONE},
+  {"v2", '2', 0, N_("Export version 2 and version 3 tables to the OS."), 0, ARG_TYPE_NONE},
+  {"oemid", 'o', 0, N_("Set OEMID of RSDP, XSDT and RSDT."), 0, ARG_TYPE_STRING},
+  {"oemtable", 't', 0,
+   N_("Set OEMTABLE ID of RSDP, XSDT and RSDT."), 0, ARG_TYPE_STRING},
+  {"oemtablerev", 'r', 0,
+   N_("Set OEMTABLE revision of RSDP, XSDT and RSDT."), 0, ARG_TYPE_INT},
+  {"oemtablecreator", 'c', 0,
+   N_("Set creator field of RSDP, XSDT and RSDT."), 0, ARG_TYPE_STRING},
+  {"oemtablecreatorrev", 'd', 0,
+   N_("Set creator revision of RSDP, XSDT and RSDT."), 0, ARG_TYPE_INT},
+  /* TRANSLATORS: "hangs" here is a noun, not a verb.  */
+  {"no-ebda", 'e', 0, N_("Don't update EBDA. May fix failures or hangs on some "
+   "BIOSes but makes it ineffective with OS not receiving RSDP from GRUB."),
+   0, ARG_TYPE_NONE},
+  {0, 0, 0, 0, 0, 0}
+};
+
+/* rev1 is 1 if ACPIv1 is to be generated, 0 otherwise.
+   rev2 contains the revision of ACPIv2+ to generate or 0 if none. */
+static int rev1, rev2;
+/* OEMID of RSDP, RSDT and XSDT. */
+static char root_oemid[6];
+/* OEMTABLE of the same tables. */
+static char root_oemtable[8];
+/* OEMREVISION of the same tables. */
+static grub_uint32_t root_oemrev;
+/* CreatorID of the same tables. */
+static char root_creator_id[4];
+/* CreatorRevision of the same tables. */
+static grub_uint32_t root_creator_rev;
+static struct grub_acpi_rsdp_v10 *rsdpv1_new = 0;
+static struct grub_acpi_rsdp_v20 *rsdpv2_new = 0;
+static char *playground = 0, *playground_ptr = 0;
+static int playground_size = 0;
+
+/* Linked list of ACPI tables. */
+struct efiemu_acpi_table
+{
+  void *addr;
+  grub_size_t size;
+  struct efiemu_acpi_table *next;
+};
+static struct efiemu_acpi_table *acpi_tables = 0;
+
+/* DSDT isn't in RSDT. So treat it specially. */
+static void *table_dsdt = 0;
+/* Pointer to recreated RSDT. */
+static void *rsdt_addr = 0;
+
+/* Allocation handles for different tables. */
+static grub_size_t dsdt_size = 0;
+
+/* Address of original FACS. */
+static grub_uint32_t facs_addr = 0;
+
+struct grub_acpi_rsdp_v20 *
+grub_acpi_get_rsdpv2 (void)
+{
+  if (rsdpv2_new)
+    return rsdpv2_new;
+  if (rsdpv1_new)
+    return 0;
+  return grub_machine_acpi_get_rsdpv2 ();
+}
+
+struct grub_acpi_rsdp_v10 *
+grub_acpi_get_rsdpv1 (void)
+{
+  if (rsdpv1_new)
+    return rsdpv1_new;
+  if (rsdpv2_new)
+    return 0;
+  return grub_machine_acpi_get_rsdpv1 ();
+}
+
+#if defined (__i386__) || defined (__x86_64__)
+
+static inline int
+iszero (grub_uint8_t *reg, int size)
+{
+  int i;
+  for (i = 0; i < size; i++)
+    if (reg[i])
+      return 0;
+  return 1;
+}
+
+/* Context for grub_acpi_create_ebda.  */
+struct grub_acpi_create_ebda_ctx {
+  int ebda_len;
+  grub_uint64_t highestlow;
+};
+
+/* Helper for grub_acpi_create_ebda.  */
+static int
+find_hook (grub_uint64_t start, grub_uint64_t size, grub_memory_type_t type,
+	   void *data)
+{
+  struct grub_acpi_create_ebda_ctx *ctx = data;
+  grub_uint64_t end = start + size;
+  if (type != GRUB_MEMORY_AVAILABLE)
+    return 0;
+  if (end > 0x100000)
+    end = 0x100000;
+  if (end > start + ctx->ebda_len
+      && ctx->highestlow < ((end - ctx->ebda_len) & (~0xf)) )
+    ctx->highestlow = (end - ctx->ebda_len) & (~0xf);
+  return 0;
+}
+
+grub_err_t
+grub_acpi_create_ebda (void)
+{
+  struct grub_acpi_create_ebda_ctx ctx = {
+    .highestlow = 0
+  };
+  int ebda_kb_len = 0;
+  int mmapregion = 0;
+  grub_uint8_t *ebda, *v1inebda = 0, *v2inebda = 0;
+  grub_uint8_t *targetebda, *target;
+  struct grub_acpi_rsdp_v10 *v1;
+  struct grub_acpi_rsdp_v20 *v2;
+
+  ebda = (grub_uint8_t *) (grub_addr_t) ((*((grub_uint16_t *)0x40e)) << 4);
+  grub_dprintf ("acpi", "EBDA @%p\n", ebda);
+  if (ebda)
+    ebda_kb_len = *(grub_uint16_t *) ebda;
+  grub_dprintf ("acpi", "EBDA length 0x%x\n", ebda_kb_len);
+  if (ebda_kb_len > 16)
+    ebda_kb_len = 0;
+  ctx.ebda_len = (ebda_kb_len + 1) << 10;
+
+  /* FIXME: use low-memory mm allocation once it's available. */
+  grub_mmap_iterate (find_hook, &ctx);
+  targetebda = (grub_uint8_t *) (grub_addr_t) ctx.highestlow;
+  grub_dprintf ("acpi", "creating ebda @%llx\n",
+		(unsigned long long) ctx.highestlow);
+  if (! ctx.highestlow)
+    return grub_error (GRUB_ERR_OUT_OF_MEMORY,
+		       "couldn't find space for the new EBDA");
+
+  mmapregion = grub_mmap_register ((grub_addr_t) targetebda, ctx.ebda_len,
+				   GRUB_MEMORY_RESERVED);
+  if (! mmapregion)
+    return grub_errno;
+
+  /* XXX: EBDA is unstandardized, so this implementation is heuristical. */
+  if (ebda_kb_len)
+    grub_memcpy (targetebda, ebda, 0x400);
+  else
+    grub_memset (targetebda, 0, 0x400);
+  *((grub_uint16_t *) targetebda) = ebda_kb_len + 1;
+  target = targetebda;
+
+  v1 = grub_acpi_get_rsdpv1 ();
+  v2 = grub_acpi_get_rsdpv2 ();
+  if (v2 && v2->length > 40)
+    v2 = 0;
+
+  /* First try to replace already existing rsdp. */
+  if (v2)
+    {
+      grub_dprintf ("acpi", "Scanning EBDA for old rsdpv2\n");
+      for (; target < targetebda + 0x400 - v2->length; target += 0x10)
+	if (grub_memcmp (target, GRUB_RSDP_SIGNATURE, GRUB_RSDP_SIGNATURE_SIZE) == 0
+	    && grub_byte_checksum (target,
+				   sizeof (struct grub_acpi_rsdp_v10)) == 0
+	    && ((struct grub_acpi_rsdp_v10 *) target)->revision != 0
+	    && ((struct grub_acpi_rsdp_v20 *) target)->length <= v2->length)
+	  {
+	    grub_memcpy (target, v2, v2->length);
+	    grub_dprintf ("acpi", "Copying rsdpv2 to %p\n", target);
+	    v2inebda = target;
+	    target += v2->length;
+	    target = (grub_uint8_t *) ALIGN_UP((grub_addr_t) target, 16);
+	    v2 = 0;
+	    break;
+	  }
+    }
+
+  if (v1)
+    {
+      grub_dprintf ("acpi", "Scanning EBDA for old rsdpv1\n");
+      for (; target < targetebda + 0x400 - sizeof (struct grub_acpi_rsdp_v10);
+	   target += 0x10)
+	if (grub_memcmp (target, GRUB_RSDP_SIGNATURE, GRUB_RSDP_SIGNATURE_SIZE) == 0
+	    && grub_byte_checksum (target,
+				   sizeof (struct grub_acpi_rsdp_v10)) == 0)
+	  {
+	    grub_memcpy (target, v1, sizeof (struct grub_acpi_rsdp_v10));
+	    grub_dprintf ("acpi", "Copying rsdpv1 to %p\n", target);
+	    v1inebda = target;
+	    target += sizeof (struct grub_acpi_rsdp_v10);
+	    target = (grub_uint8_t *) ALIGN_UP((grub_addr_t) target, 16);
+	    v1 = 0;
+	    break;
+	  }
+    }
+
+  target = targetebda + 0x100;
+
+  /* Try contiguous zeros. */
+  if (v2)
+    {
+      grub_dprintf ("acpi", "Scanning EBDA for block of zeros\n");
+      for (; target < targetebda + 0x400 - v2->length; target += 0x10)
+	if (iszero (target, v2->length))
+	  {
+	    grub_dprintf ("acpi", "Copying rsdpv2 to %p\n", target);
+	    grub_memcpy (target, v2, v2->length);
+	    v2inebda = target;
+	    target += v2->length;
+	    target = (grub_uint8_t *) ALIGN_UP((grub_addr_t) target, 16);
+	    v2 = 0;
+	    break;
+	  }
+    }
+
+  if (v1)
+    {
+      grub_dprintf ("acpi", "Scanning EBDA for block of zeros\n");
+      for (; target < targetebda + 0x400 - sizeof (struct grub_acpi_rsdp_v10);
+	   target += 0x10)
+	if (iszero (target, sizeof (struct grub_acpi_rsdp_v10)))
+	  {
+	    grub_dprintf ("acpi", "Copying rsdpv1 to %p\n", target);
+	    grub_memcpy (target, v1, sizeof (struct grub_acpi_rsdp_v10));
+	    v1inebda = target;
+	    target += sizeof (struct grub_acpi_rsdp_v10);
+	    target = (grub_uint8_t *) ALIGN_UP((grub_addr_t) target, 16);
+	    v1 = 0;
+	    break;
+	  }
+    }
+
+  if (v1 || v2)
+    {
+      grub_mmap_unregister (mmapregion);
+      return grub_error (GRUB_ERR_OUT_OF_MEMORY,
+			 "couldn't find suitable spot in EBDA");
+    }
+
+  /* Remove any other RSDT. */
+  for (target = targetebda;
+       target < targetebda + 0x400 - sizeof (struct grub_acpi_rsdp_v10);
+       target += 0x10)
+    if (grub_memcmp (target, GRUB_RSDP_SIGNATURE, GRUB_RSDP_SIGNATURE_SIZE) == 0
+	&& grub_byte_checksum (target,
+			       sizeof (struct grub_acpi_rsdp_v10)) == 0
+	&& target != v1inebda && target != v2inebda)
+      *target = 0;
+
+  grub_dprintf ("acpi", "Switching EBDA\n");
+  (*((grub_uint16_t *) 0x40e)) = ((grub_addr_t) targetebda) >> 4;
+  grub_dprintf ("acpi", "EBDA switched\n");
+
+  return GRUB_ERR_NONE;
+}
+#endif
+
+/* Create tables common to ACPIv1 and ACPIv2+ */
+static void
+setup_common_tables (void)
+{
+  struct efiemu_acpi_table *cur;
+  struct grub_acpi_table_header *rsdt;
+  grub_uint32_t *rsdt_entry;
+  int numoftables;
+
+  /* Treat DSDT. */
+  grub_memcpy (playground_ptr, table_dsdt, dsdt_size);
+  grub_free (table_dsdt);
+  table_dsdt = playground_ptr;
+  playground_ptr += dsdt_size;
+
+  /* Treat other tables. */
+  for (cur = acpi_tables; cur; cur = cur->next)
+    {
+      struct grub_acpi_fadt *fadt;
+
+      grub_memcpy (playground_ptr, cur->addr, cur->size);
+      grub_free (cur->addr);
+      cur->addr = playground_ptr;
+      playground_ptr += cur->size;
+
+      /* If it's FADT correct DSDT and FACS addresses. */
+      fadt = (struct grub_acpi_fadt *) cur->addr;
+      if (grub_memcmp (fadt->hdr.signature, GRUB_ACPI_FADT_SIGNATURE,
+		       sizeof (fadt->hdr.signature)) == 0)
+	{
+	  fadt->dsdt_addr = (grub_addr_t) table_dsdt;
+	  fadt->facs_addr = facs_addr;
+
+	  /* Does a revision 2 exist at all? */
+	  if (fadt->hdr.revision >= 3)
+	    {
+	      fadt->dsdt_xaddr = (grub_addr_t) table_dsdt;
+	      fadt->facs_xaddr = facs_addr;
+	    }
+
+	  /* Recompute checksum. */
+	  fadt->hdr.checksum = 0;
+	  fadt->hdr.checksum = 1 + ~grub_byte_checksum (fadt, fadt->hdr.length);
+	}
+    }
+
+  /* Fill RSDT entries. */
+  numoftables = 0;
+  for (cur = acpi_tables; cur; cur = cur->next)
+    numoftables++;
+
+  rsdt_addr = rsdt = (struct grub_acpi_table_header *) playground_ptr;
+  playground_ptr += sizeof (struct grub_acpi_table_header) + sizeof (grub_uint32_t) * numoftables;
+
+  rsdt_entry = (grub_uint32_t *) (rsdt + 1);
+
+  /* Fill RSDT header. */
+  grub_memcpy (&(rsdt->signature), "RSDT", 4);
+  rsdt->length = sizeof (struct grub_acpi_table_header) + sizeof (grub_uint32_t) * numoftables;
+  rsdt->revision = 1;
+  grub_memcpy (&(rsdt->oemid), root_oemid, sizeof (rsdt->oemid));
+  grub_memcpy (&(rsdt->oemtable), root_oemtable, sizeof (rsdt->oemtable));
+  rsdt->oemrev = root_oemrev;
+  grub_memcpy (&(rsdt->creator_id), root_creator_id, sizeof (rsdt->creator_id));
+  rsdt->creator_rev = root_creator_rev;
+
+  for (cur = acpi_tables; cur; cur = cur->next)
+    *(rsdt_entry++) = (grub_addr_t) cur->addr;
+
+  /* Recompute checksum. */
+  rsdt->checksum = 0;
+  rsdt->checksum = 1 + ~grub_byte_checksum (rsdt, rsdt->length);
+}
+
+/* Regenerate ACPIv1 RSDP */
+static void
+setv1table (void)
+{
+  /* Create RSDP. */
+  rsdpv1_new = (struct grub_acpi_rsdp_v10 *) playground_ptr;
+  playground_ptr += sizeof (struct grub_acpi_rsdp_v10);
+  grub_memcpy (&(rsdpv1_new->signature), GRUB_RSDP_SIGNATURE,
+	       sizeof (rsdpv1_new->signature));
+  grub_memcpy (&(rsdpv1_new->oemid), root_oemid, sizeof  (rsdpv1_new->oemid));
+  rsdpv1_new->revision = 0;
+  rsdpv1_new->rsdt_addr = (grub_addr_t) rsdt_addr;
+  rsdpv1_new->checksum = 0;
+  rsdpv1_new->checksum = 1 + ~grub_byte_checksum (rsdpv1_new,
+						  sizeof (*rsdpv1_new));
+  grub_dprintf ("acpi", "Generated ACPIv1 tables\n");
+}
+
+static void
+setv2table (void)
+{
+  struct grub_acpi_table_header *xsdt;
+  struct efiemu_acpi_table *cur;
+  grub_uint64_t *xsdt_entry;
+  int numoftables;
+
+  numoftables = 0;
+  for (cur = acpi_tables; cur; cur = cur->next)
+    numoftables++;
+
+  /* Create XSDT. */
+  xsdt = (struct grub_acpi_table_header *) playground_ptr;
+  playground_ptr += sizeof (struct grub_acpi_table_header) + sizeof (grub_uint64_t) * numoftables;
+
+  xsdt_entry = (grub_uint64_t *)(xsdt + 1);
+  for (cur = acpi_tables; cur; cur = cur->next)
+    *(xsdt_entry++) = (grub_addr_t) cur->addr;
+  grub_memcpy (&(xsdt->signature), "XSDT", 4);
+  xsdt->length = sizeof (struct grub_acpi_table_header) + sizeof (grub_uint64_t) * numoftables;
+  xsdt->revision = 1;
+  grub_memcpy (&(xsdt->oemid), root_oemid, sizeof (xsdt->oemid));
+  grub_memcpy (&(xsdt->oemtable), root_oemtable, sizeof (xsdt->oemtable));
+  xsdt->oemrev = root_oemrev;
+  grub_memcpy (&(xsdt->creator_id), root_creator_id, sizeof (xsdt->creator_id));
+  xsdt->creator_rev = root_creator_rev;
+  xsdt->checksum = 0;
+  xsdt->checksum = 1 + ~grub_byte_checksum (xsdt, xsdt->length);
+
+  /* Create RSDPv2. */
+  rsdpv2_new = (struct grub_acpi_rsdp_v20 *) playground_ptr;
+  playground_ptr += sizeof (struct grub_acpi_rsdp_v20);
+  grub_memcpy (&(rsdpv2_new->rsdpv1.signature), GRUB_RSDP_SIGNATURE,
+	       sizeof (rsdpv2_new->rsdpv1.signature));
+  grub_memcpy (&(rsdpv2_new->rsdpv1.oemid), root_oemid,
+	       sizeof (rsdpv2_new->rsdpv1.oemid));
+  rsdpv2_new->rsdpv1.revision = rev2;
+  rsdpv2_new->rsdpv1.rsdt_addr = (grub_addr_t) rsdt_addr;
+  rsdpv2_new->rsdpv1.checksum = 0;
+  rsdpv2_new->rsdpv1.checksum = 1 + ~grub_byte_checksum
+    (&(rsdpv2_new->rsdpv1), sizeof (rsdpv2_new->rsdpv1));
+  rsdpv2_new->length = sizeof (*rsdpv2_new);
+  rsdpv2_new->xsdt_addr = (grub_addr_t) xsdt;
+  rsdpv2_new->checksum = 0;
+  rsdpv2_new->checksum = 1 + ~grub_byte_checksum (rsdpv2_new,
+						  rsdpv2_new->length);
+  grub_dprintf ("acpi", "Generated ACPIv2 tables\n");
+}
+
+static void
+free_tables (void)
+{
+  struct efiemu_acpi_table *cur, *t;
+  if (table_dsdt)
+    grub_free (table_dsdt);
+  for (cur = acpi_tables; cur;)
+    {
+      t = cur;
+      grub_free (cur->addr);
+      cur = cur->next;
+      grub_free (t);
+    }
+  acpi_tables = 0;
+  table_dsdt = 0;
+}
+
+static grub_err_t
+grub_cmd_acpi (struct grub_extcmd_context *ctxt, int argc, char **args)
+{
+  struct grub_arg_list *state = ctxt->state;
+  struct grub_acpi_rsdp_v10 *rsdp;
+  struct efiemu_acpi_table *cur, *t;
+  int i, mmapregion;
+  int numoftables;
+
+  /* Default values if no RSDP is found. */
+  rev1 = 1;
+  rev2 = 3;
+
+  facs_addr = 0;
+  playground = playground_ptr = 0;
+  playground_size = 0;
+
+  rsdp = (struct grub_acpi_rsdp_v10 *) grub_machine_acpi_get_rsdpv2 ();
+
+  if (! rsdp)
+    rsdp = grub_machine_acpi_get_rsdpv1 ();
+
+  grub_dprintf ("acpi", "RSDP @%p\n", rsdp);
+
+  if (rsdp)
+    {
+      grub_uint32_t *entry_ptr;
+      char *exclude = 0;
+      char *load_only = 0;
+      char *ptr;
+      /* RSDT consists of header and an array of 32-bit pointers. */
+      struct grub_acpi_table_header *rsdt;
+
+      exclude = state[0].set ? grub_strdup (state[0].arg) : 0;
+      if (exclude)
+	{
+	  for (ptr = exclude; *ptr; ptr++)
+	    *ptr = grub_tolower (*ptr);
+	}
+
+      load_only = state[1].set ? grub_strdup (state[1].arg) : 0;
+      if (load_only)
+	{
+	  for (ptr = load_only; *ptr; ptr++)
+	    *ptr = grub_tolower (*ptr);
+	}
+
+      /* Set revision variables to replicate the same version as host. */
+      rev1 = ! rsdp->revision;
+      rev2 = rsdp->revision;
+      rsdt = (struct grub_acpi_table_header *) (grub_addr_t) rsdp->rsdt_addr;
+      /* Load host tables. */
+      for (entry_ptr = (grub_uint32_t *) (rsdt + 1);
+	   entry_ptr < (grub_uint32_t *) (((grub_uint8_t *) rsdt)
+					  + rsdt->length);
+	   entry_ptr++)
+	{
+	  char signature[5];
+	  struct efiemu_acpi_table *table;
+	  struct grub_acpi_table_header *curtable
+	    = (struct grub_acpi_table_header *) (grub_addr_t) *entry_ptr;
+	  signature[4] = 0;
+	  for (i = 0; i < 4;i++)
+	    signature[i] = grub_tolower (curtable->signature[i]);
+
+	  /* If it's FADT it contains addresses of DSDT and FACS. */
+	  if (grub_strcmp (signature, "facp") == 0)
+	    {
+	      struct grub_acpi_table_header *dsdt;
+	      struct grub_acpi_fadt *fadt = (struct grub_acpi_fadt *) curtable;
+
+	      /* Set root header variables to the same values
+		 as FADT by default. */
+	      grub_memcpy (&root_oemid, &(fadt->hdr.oemid),
+			   sizeof (root_oemid));
+	      grub_memcpy (&root_oemtable, &(fadt->hdr.oemtable),
+			   sizeof (root_oemtable));
+	      root_oemrev = fadt->hdr.oemrev;
+	      grub_memcpy (&root_creator_id, &(fadt->hdr.creator_id),
+			   sizeof (root_creator_id));
+	      root_creator_rev = fadt->hdr.creator_rev;
+
+	      /* Load DSDT if not excluded. */
+	      dsdt = (struct grub_acpi_table_header *)
+		(grub_addr_t) fadt->dsdt_addr;
+	      if (dsdt && (! exclude || ! grub_strword (exclude, "dsdt"))
+		  && (! load_only || grub_strword (load_only, "dsdt"))
+		  && dsdt->length >= sizeof (*dsdt))
+		{
+		  dsdt_size = dsdt->length;
+		  table_dsdt = grub_malloc (dsdt->length);
+		  if (! table_dsdt)
+		    {
+		      free_tables ();
+		      grub_free (exclude);
+		      grub_free (load_only);
+		      return grub_errno;
+		    }
+		  grub_memcpy (table_dsdt, dsdt, dsdt->length);
+		}
+
+	      /* Save FACS address. FACS shouldn't be overridden. */
+	      facs_addr = fadt->facs_addr;
+	    }
+
+	  /* Skip excluded tables. */
+	  if (exclude && grub_strword (exclude, signature))
+	    continue;
+	  if (load_only && ! grub_strword (load_only, signature))
+	    continue;
+
+	  /* Sanity check. */
+	  if (curtable->length < sizeof (*curtable))
+	    continue;
+
+	  table = (struct efiemu_acpi_table *) grub_malloc
+	    (sizeof (struct efiemu_acpi_table));
+	  if (! table)
+	    {
+	      free_tables ();
+	      grub_free (exclude);
+	      grub_free (load_only);
+	      return grub_errno;
+	    }
+	  table->size = curtable->length;
+	  table->addr = grub_malloc (table->size);
+	  playground_size += table->size;
+	  if (! table->addr)
+	    {
+	      free_tables ();
+	      grub_free (exclude);
+	      grub_free (load_only);
+	      grub_free (table);
+	      return grub_errno;
+	    }
+	  table->next = acpi_tables;
+	  acpi_tables = table;
+	  grub_memcpy (table->addr, curtable, table->size);
+	}
+      grub_free (exclude);
+      grub_free (load_only);
+    }
+
+  /* Does user specify versions to generate? */
+  if (state[2].set || state[3].set)
+    {
+      rev1 = state[2].set;
+      if (state[3].set)
+	rev2 = rev2 ? : 2;
+      else
+	rev2 = 0;
+    }
+
+  /* Does user override root header information? */
+  if (state[4].set)
+    grub_strncpy (root_oemid, state[4].arg, sizeof (root_oemid));
+  if (state[5].set)
+    grub_strncpy (root_oemtable, state[5].arg, sizeof (root_oemtable));
+  if (state[6].set)
+    root_oemrev = grub_strtoul (state[6].arg, 0, 0);
+  if (state[7].set)
+    grub_strncpy (root_creator_id, state[7].arg, sizeof (root_creator_id));
+  if (state[8].set)
+    root_creator_rev = grub_strtoul (state[8].arg, 0, 0);
+
+  /* Load user tables */
+  for (i = 0; i < argc; i++)
+    {
+      grub_file_t file;
+      grub_size_t size;
+      char *buf;
+
+      file = grub_file_open (args[i], GRUB_FILE_TYPE_ACPI_TABLE);
+      if (! file)
+	{
+	  free_tables ();
+	  return grub_errno;
+	}
+
+      size = grub_file_size (file);
+      if (size < sizeof (struct grub_acpi_table_header))
+	{
+	  grub_file_close (file);
+	  free_tables ();
+	  return grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"),
+			     args[i]);
+	}
+
+      buf = (char *) grub_malloc (size);
+      if (! buf)
+	{
+	  grub_file_close (file);
+	  free_tables ();
+	  return grub_errno;
+	}
+
+      if (grub_file_read (file, buf, size) != (int) size)
+	{
+	  grub_file_close (file);
+	  free_tables ();
+	  if (!grub_errno)
+	    grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"),
+			args[i]);
+	  return grub_errno;
+	}
+      grub_file_close (file);
+
+      if (grub_memcmp (((struct grub_acpi_table_header *) buf)->signature,
+		       "DSDT", 4) == 0)
+	{
+	  grub_free (table_dsdt);
+	  table_dsdt = buf;
+	  dsdt_size = size;
+	}
+      else
+	{
+	  struct efiemu_acpi_table *table;
+	  table = (struct efiemu_acpi_table *) grub_malloc
+	    (sizeof (struct efiemu_acpi_table));
+	  if (! table)
+	    {
+	      free_tables ();
+	      return grub_errno;
+	    }
+
+	  table->size = size;
+	  table->addr = buf;
+	  playground_size += table->size;
+
+	  table->next = acpi_tables;
+	  acpi_tables = table;
+	}
+    }
+
+  numoftables = 0;
+  for (cur = acpi_tables; cur; cur = cur->next)
+    numoftables++;
+
+  /* DSDT. */
+  playground_size += dsdt_size;
+  /* RSDT. */
+  playground_size += sizeof (struct grub_acpi_table_header) + sizeof (grub_uint32_t) * numoftables;
+  /* RSDPv1. */
+  playground_size += sizeof (struct grub_acpi_rsdp_v10);
+  /* XSDT. */
+  playground_size += sizeof (struct grub_acpi_table_header) + sizeof (grub_uint64_t) * numoftables;
+  /* RSDPv2. */
+  playground_size += sizeof (struct grub_acpi_rsdp_v20);
+
+  playground = playground_ptr
+    = grub_mmap_malign_and_register (1, playground_size, &mmapregion,
+				     GRUB_MEMORY_ACPI, 0);
+
+  if (! playground)
+    {
+      free_tables ();
+      return grub_error (GRUB_ERR_OUT_OF_MEMORY,
+			 "couldn't allocate space for ACPI tables");
+    }
+
+  setup_common_tables ();
+
+  /* Request space for RSDPv1. */
+  if (rev1)
+    setv1table ();
+
+  /* Request space for RSDPv2+ and XSDT. */
+  if (rev2)
+    setv2table ();
+
+  for (cur = acpi_tables; cur;)
+    {
+      t = cur;
+      cur = cur->next;
+      grub_free (t);
+    }
+  acpi_tables = 0;
+
+#if defined (__i386__) || defined (__x86_64__)
+  if (! state[9].set)
+    {
+      grub_err_t err;
+      err = grub_acpi_create_ebda ();
+      if (err)
+	{
+	  rsdpv1_new = 0;
+	  rsdpv2_new = 0;
+	  grub_mmap_free_and_unregister (mmapregion);
+	  return err;
+	}
+    }
+#endif
+
+#ifdef GRUB_MACHINE_EFI
+  {
+    struct grub_efi_guid acpi = GRUB_EFI_ACPI_TABLE_GUID;
+    struct grub_efi_guid acpi20 = GRUB_EFI_ACPI_20_TABLE_GUID;
+
+    efi_call_2 (grub_efi_system_table->boot_services->install_configuration_table,
+      &acpi20, grub_acpi_get_rsdpv2 ());
+    efi_call_2 (grub_efi_system_table->boot_services->install_configuration_table,
+      &acpi, grub_acpi_get_rsdpv1 ());
+  }
+#endif
+
+  return GRUB_ERR_NONE;
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT(acpi)
+{
+  cmd = grub_register_extcmd_lockdown ("acpi", grub_cmd_acpi, 0,
+                                       N_("[-1|-2] [--exclude=TABLE1,TABLE2|"
+                                          "--load-only=TABLE1,TABLE2] FILE1"
+                                          " [FILE2] [...]"),
+                                       N_("Load host ACPI tables and tables "
+                                          "specified by arguments."),
+                                       options);
+}
+
+GRUB_MOD_FINI(acpi)
+{
+  grub_unregister_extcmd (cmd);
+}
diff --git a/grub-core/commands/acpihalt.c b/grub-core/commands/acpihalt.c
new file mode 100644
index 0000000..9cc7f18
--- /dev/null
+++ b/grub-core/commands/acpihalt.c
@@ -0,0 +1,454 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2010  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifdef GRUB_DSDT_TEST
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <errno.h>
+
+#define grub_dprintf(cond, args...) printf ( args )
+#define grub_printf printf
+#define grub_util_fopen fopen
+#define grub_memcmp memcmp
+typedef uint64_t grub_uint64_t;
+typedef uint32_t grub_uint32_t;
+typedef uint16_t grub_uint16_t;
+typedef uint8_t grub_uint8_t;
+
+#endif
+
+#include <grub/acpi.h>
+#ifndef GRUB_DSDT_TEST
+#include <grub/i18n.h>
+#else
+#define _(x) x
+#define N_(x) x
+#endif
+
+#ifndef GRUB_DSDT_TEST
+#include <grub/mm.h>
+#include <grub/misc.h>
+#include <grub/time.h>
+#include <grub/cpu/io.h>
+#endif
+
+static inline grub_uint32_t
+decode_length (const grub_uint8_t *ptr, int *numlen)
+{
+  int num_bytes, i;
+  grub_uint32_t ret;
+  if (*ptr < 64)
+    {
+      if (numlen)
+	*numlen = 1;
+      return *ptr;
+    }
+  num_bytes = *ptr >> 6;
+  if (numlen)
+    *numlen = num_bytes + 1;
+  ret = *ptr & 0xf;
+  ptr++;
+  for (i = 0; i < num_bytes; i++)
+    {
+      ret |= *ptr << (8 * i + 4);
+      ptr++;
+    }
+  return ret;
+}
+
+static inline grub_uint32_t
+skip_name_string (const grub_uint8_t *ptr, const grub_uint8_t *end)
+{
+  const grub_uint8_t *ptr0 = ptr;
+  
+  while (ptr < end && (*ptr == '^' || *ptr == '\\'))
+    ptr++;
+  switch (*ptr)
+    {
+    case '.':
+      ptr++;
+      ptr += 8;
+      break;
+    case '/':
+      ptr++;
+      ptr += 1 + (*ptr) * 4;
+      break;
+    case 0:
+      ptr++;
+      break;
+    default:
+      ptr += 4;
+      break;
+    }
+  return ptr - ptr0;
+}
+
+static inline grub_uint32_t
+skip_data_ref_object (const grub_uint8_t *ptr, const grub_uint8_t *end)
+{
+  grub_dprintf ("acpi", "data type = 0x%x\n", *ptr);
+  switch (*ptr)
+    {
+    case GRUB_ACPI_OPCODE_PACKAGE:
+    case GRUB_ACPI_OPCODE_BUFFER:
+      return 1 + decode_length (ptr + 1, 0);
+    case GRUB_ACPI_OPCODE_ZERO:
+    case GRUB_ACPI_OPCODE_ONES:
+    case GRUB_ACPI_OPCODE_ONE:
+      return 1;
+    case GRUB_ACPI_OPCODE_BYTE_CONST:
+      return 2;
+    case GRUB_ACPI_OPCODE_WORD_CONST:
+      return 3;
+    case GRUB_ACPI_OPCODE_DWORD_CONST:
+      return 5;
+    case GRUB_ACPI_OPCODE_STRING_CONST:
+      {
+	const grub_uint8_t *ptr0 = ptr;
+	for (ptr++; ptr < end && *ptr; ptr++);
+	if (ptr == end)
+	  return 0;
+	return ptr - ptr0 + 1;
+      }
+    default:
+      if (*ptr == '^' || *ptr == '\\' || *ptr == '_'
+	  || (*ptr >= 'A' && *ptr <= 'Z'))
+	return skip_name_string (ptr, end);
+      grub_printf ("Unknown opcode 0x%x\n", *ptr);
+      return 0;
+    }
+}
+
+static inline grub_uint32_t
+skip_term (const grub_uint8_t *ptr, const grub_uint8_t *end)
+{
+  grub_uint32_t add;
+  const grub_uint8_t *ptr0 = ptr;
+
+  switch(*ptr)
+  {
+    case GRUB_ACPI_OPCODE_ADD:
+    case GRUB_ACPI_OPCODE_AND:
+    case GRUB_ACPI_OPCODE_CONCAT:
+    case GRUB_ACPI_OPCODE_CONCATRES:
+    case GRUB_ACPI_OPCODE_DIVIDE:
+    case GRUB_ACPI_OPCODE_INDEX:
+    case GRUB_ACPI_OPCODE_LSHIFT:
+    case GRUB_ACPI_OPCODE_MOD:
+    case GRUB_ACPI_OPCODE_MULTIPLY:
+    case GRUB_ACPI_OPCODE_NAND:
+    case GRUB_ACPI_OPCODE_NOR:
+    case GRUB_ACPI_OPCODE_OR:
+    case GRUB_ACPI_OPCODE_RSHIFT:
+    case GRUB_ACPI_OPCODE_SUBTRACT:
+    case GRUB_ACPI_OPCODE_TOSTRING:
+    case GRUB_ACPI_OPCODE_XOR:
+      /*
+       * Parameters for these opcodes: TermArg, TermArg Target, see ACPI
+       * spec r5.0, page 828f.
+       */
+      ptr++;
+      ptr += add = skip_term (ptr, end);
+      if (!add)
+        return 0;
+      ptr += add = skip_term (ptr, end);
+      if (!add)
+        return 0;
+      ptr += skip_name_string (ptr, end);
+      break;
+    default:
+      return skip_data_ref_object (ptr, end);
+  }
+  return ptr - ptr0;
+}
+
+static inline grub_uint32_t
+skip_ext_op (const grub_uint8_t *ptr, const grub_uint8_t *end)
+{
+  const grub_uint8_t *ptr0 = ptr;
+  int add;
+  grub_dprintf ("acpi", "Extended opcode: 0x%x\n", *ptr);
+  switch (*ptr)
+    {
+    case GRUB_ACPI_EXTOPCODE_MUTEX:
+      ptr++;
+      ptr += skip_name_string (ptr, end);
+      ptr++;
+      break;
+    case GRUB_ACPI_EXTOPCODE_EVENT_OP:
+      ptr++;
+      ptr += skip_name_string (ptr, end);
+      break;
+    case GRUB_ACPI_EXTOPCODE_OPERATION_REGION:
+      ptr++;
+      ptr += skip_name_string (ptr, end);
+      ptr++;
+      ptr += add = skip_term (ptr, end);
+      if (!add)
+	return 0;
+      ptr += add = skip_term (ptr, end);
+      if (!add)
+	return 0;
+      break;
+    case GRUB_ACPI_EXTOPCODE_FIELD_OP:
+    case GRUB_ACPI_EXTOPCODE_DEVICE_OP:
+    case GRUB_ACPI_EXTOPCODE_PROCESSOR_OP:
+    case GRUB_ACPI_EXTOPCODE_POWER_RES_OP:
+    case GRUB_ACPI_EXTOPCODE_THERMAL_ZONE_OP:
+    case GRUB_ACPI_EXTOPCODE_INDEX_FIELD_OP:
+    case GRUB_ACPI_EXTOPCODE_BANK_FIELD_OP:
+      ptr++;
+      ptr += decode_length (ptr, 0);
+      break;
+    default:
+      grub_printf ("Unexpected extended opcode: 0x%x\n", *ptr);
+      return 0;
+    }
+  return ptr - ptr0;
+}
+
+
+static int
+get_sleep_type (grub_uint8_t *table, grub_uint8_t *ptr, grub_uint8_t *end,
+		grub_uint8_t *scope, int scope_len)
+{
+  grub_uint8_t *prev = table;
+  
+  if (!ptr)
+    ptr = table + sizeof (struct grub_acpi_table_header);
+  while (ptr < end && prev < ptr)
+    {
+      int add;
+      prev = ptr;
+      grub_dprintf ("acpi", "Opcode 0x%x\n", *ptr);
+      grub_dprintf ("acpi", "Tell %x\n", (unsigned) (ptr - table));
+      switch (*ptr)
+	{
+	case GRUB_ACPI_OPCODE_EXTOP:
+	  ptr++;
+	  ptr += add = skip_ext_op (ptr, end);
+	  if (!add)
+	    return -1;
+	  break;
+	case GRUB_ACPI_OPCODE_CREATE_DWORD_FIELD:
+	case GRUB_ACPI_OPCODE_CREATE_WORD_FIELD:
+	case GRUB_ACPI_OPCODE_CREATE_BYTE_FIELD:
+	  {
+	    ptr += 5;
+	    ptr += add = skip_data_ref_object (ptr, end);
+	    if (!add)
+	      return -1;
+	    ptr += 4;
+	    break;
+	  }
+	case GRUB_ACPI_OPCODE_NAME:
+	  ptr++;
+	  if ((!scope || grub_memcmp (scope, "\\", scope_len) == 0) &&
+	      (grub_memcmp (ptr, "_S5_", 4) == 0 || grub_memcmp (ptr, "\\_S5_", 4) == 0))
+	    {
+	      int ll;
+	      grub_uint8_t *ptr2 = ptr;
+	      grub_dprintf ("acpi", "S5 found\n");
+	      ptr2 += skip_name_string (ptr, end);
+	      if (*ptr2 != 0x12)
+		{
+		  grub_printf ("Unknown opcode in _S5: 0x%x\n", *ptr2);
+		  return -1;
+		}
+	      ptr2++;
+	      decode_length (ptr2, &ll);
+	      ptr2 += ll;
+	      ptr2++;
+	      switch (*ptr2)
+		{
+		case GRUB_ACPI_OPCODE_ZERO:
+		  return 0;
+		case GRUB_ACPI_OPCODE_ONE:
+		  return 1;
+		case GRUB_ACPI_OPCODE_BYTE_CONST:
+		  return ptr2[1];
+		default:
+		  grub_printf ("Unknown data type in _S5: 0x%x\n", *ptr2);
+		  return -1;
+		}
+	    }
+	  ptr += add = skip_name_string (ptr, end);
+	  if (!add)
+	    return -1;
+	  ptr += add = skip_data_ref_object (ptr, end);
+	  if (!add)
+	    return -1;
+	  break;
+	case GRUB_ACPI_OPCODE_ALIAS:
+	  ptr++;
+	  /* We need to skip two name strings */
+	  ptr += add = skip_name_string (ptr, end);
+	  if (!add)
+	    return -1;
+	  ptr += add = skip_name_string (ptr, end);
+	  if (!add)
+	    return -1;
+	  break;
+
+	case GRUB_ACPI_OPCODE_SCOPE:
+	  {
+	    int scope_sleep_type;
+	    int ll;
+	    grub_uint8_t *name;
+	    int name_len;
+
+	    ptr++;
+	    add = decode_length (ptr, &ll);
+	    name = ptr + ll;
+	    name_len = skip_name_string (name, ptr + add);
+	    if (!name_len)
+	      return -1;
+	    scope_sleep_type = get_sleep_type (table, name + name_len,
+					       ptr + add, name, name_len);
+	    if (scope_sleep_type != -2)
+	      return scope_sleep_type;
+	    ptr += add;
+	    break;
+	  }
+	case GRUB_ACPI_OPCODE_IF:
+	case GRUB_ACPI_OPCODE_METHOD:
+	  {
+	    ptr++;
+	    ptr += decode_length (ptr, 0);
+	    break;
+	  }
+	default:
+	  grub_printf ("Unknown opcode 0x%x\n", *ptr);
+	  return -1;	  
+	}
+    }
+
+  return -2;
+}
+
+#ifdef GRUB_DSDT_TEST
+int
+main (int argc, char **argv)
+{
+  FILE *f;
+  size_t len;
+  unsigned char *buf;
+  if (argc < 2)
+    printf ("Usage: %s FILE\n", argv[0]);
+  f = grub_util_fopen (argv[1], "rb");
+  if (!f)
+    {
+      printf ("Couldn't open file\n");
+      return 1;
+    }
+  fseek (f, 0, SEEK_END);
+  len = ftell (f);
+  fseek (f, 0, SEEK_SET);
+  buf = malloc (len);
+  if (!buf)
+    {
+      printf (_("error: %s.\n"), _("out of memory"));
+      fclose (f);
+      return 2;
+    }
+  if (fread (buf, 1, len, f) != len)
+    {
+      printf (_("cannot read `%s': %s"), argv[1], strerror (errno));
+      free (buf);
+      fclose (f);
+      return 2;
+    }
+
+  printf ("Sleep type = %d\n", get_sleep_type (buf, NULL, buf + len, NULL, 0));
+  free (buf);
+  fclose (f);
+  return 0;
+}
+
+#else
+
+void
+grub_acpi_halt (void)
+{
+  struct grub_acpi_rsdp_v20 *rsdp2;
+  struct grub_acpi_rsdp_v10 *rsdp1;
+  struct grub_acpi_table_header *rsdt;
+  grub_uint32_t *entry_ptr;
+  grub_uint32_t port = 0;
+  int sleep_type = -1;
+
+  rsdp2 = grub_acpi_get_rsdpv2 ();
+  if (rsdp2)
+    rsdp1 = &(rsdp2->rsdpv1);
+  else
+    rsdp1 = grub_acpi_get_rsdpv1 ();
+  grub_dprintf ("acpi", "rsdp1=%p\n", rsdp1);
+  if (!rsdp1)
+    return;
+
+  rsdt = (struct grub_acpi_table_header *) (grub_addr_t) rsdp1->rsdt_addr;
+  for (entry_ptr = (grub_uint32_t *) (rsdt + 1);
+       entry_ptr < (grub_uint32_t *) (((grub_uint8_t *) rsdt)
+				      + rsdt->length);
+       entry_ptr++)
+    {
+      if (grub_memcmp ((void *) (grub_addr_t) *entry_ptr, "FACP", 4) == 0)
+	{
+	  struct grub_acpi_fadt *fadt
+	    = ((struct grub_acpi_fadt *) (grub_addr_t) *entry_ptr);
+	  struct grub_acpi_table_header *dsdt
+	    = (struct grub_acpi_table_header *) (grub_addr_t) fadt->dsdt_addr;
+	  grub_uint8_t *buf = (grub_uint8_t *) dsdt;
+
+	  port = fadt->pm1a;
+
+	  grub_dprintf ("acpi", "PM1a port=%x\n", port);
+
+	  if (grub_memcmp (dsdt->signature, "DSDT",
+			   sizeof (dsdt->signature)) == 0
+	      && sleep_type < 0)
+	    sleep_type = get_sleep_type (buf, NULL, buf + dsdt->length,
+					 NULL, 0);
+	}
+      else if (grub_memcmp ((void *) (grub_addr_t) *entry_ptr, "SSDT", 4) == 0
+	       && sleep_type < 0)
+	{
+	  struct grub_acpi_table_header *ssdt
+	    = (struct grub_acpi_table_header *) (grub_addr_t) *entry_ptr;
+	  grub_uint8_t *buf = (grub_uint8_t *) ssdt;
+
+	  grub_dprintf ("acpi", "SSDT = %p\n", ssdt);
+
+	  sleep_type = get_sleep_type (buf, NULL, buf + ssdt->length, NULL, 0);
+	}
+    }
+
+  grub_dprintf ("acpi", "SLP_TYP = %d, port = 0x%x\n", sleep_type, port);
+  if (port && sleep_type >= 0 && sleep_type < 8)
+    grub_outw (GRUB_ACPI_SLP_EN | (sleep_type << GRUB_ACPI_SLP_TYP_OFFSET),
+	       port & 0xffff);
+
+  grub_millisleep (1500);
+
+  /* TRANSLATORS: It's computer shutdown using ACPI, not disabling ACPI.  */
+  grub_puts_ (N_("ACPI shutdown failed"));
+}
+#endif
diff --git a/grub-core/commands/arc/lsdev.c b/grub-core/commands/arc/lsdev.c
new file mode 100644
index 0000000..27ed0a2
--- /dev/null
+++ b/grub-core/commands/arc/lsdev.c
@@ -0,0 +1,57 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2011  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+#include <grub/arc/arc.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+/* Helper for grub_cmd_lsdev.  */
+static int
+grub_cmd_lsdev_iter (const char *name,
+		     const struct grub_arc_component *comp __attribute__ ((unused)),
+		     void *data __attribute__ ((unused)))
+{
+  grub_printf ("%s\n", name);
+  return 0;
+}
+
+static grub_err_t
+grub_cmd_lsdev (grub_command_t cmd __attribute__ ((unused)),
+		int argc __attribute__ ((unused)),
+		char **args __attribute__ ((unused)))
+{
+  grub_arc_iterate_devs (grub_cmd_lsdev_iter, 0, 0);
+  return 0;
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(lsdev)
+{
+  cmd = grub_register_command ("lsdev", grub_cmd_lsdev, "",
+			      N_("List devices."));
+}
+
+GRUB_MOD_FINI(lsdev)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/blocklist.c b/grub-core/commands/blocklist.c
new file mode 100644
index 0000000..944449b
--- /dev/null
+++ b/grub-core/commands/blocklist.c
@@ -0,0 +1,160 @@
+/* blocklist.c - print the block list of a file */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2006,2007  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/file.h>
+#include <grub/mm.h>
+#include <grub/disk.h>
+#include <grub/partition.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+/* Context for grub_cmd_blocklist.  */
+struct blocklist_ctx
+{
+  unsigned long start_sector;
+  unsigned num_sectors;
+  int num_entries;
+  grub_disk_addr_t part_start;
+};
+
+/* Helper for grub_cmd_blocklist.  */
+static void
+print_blocklist (grub_disk_addr_t sector, unsigned num,
+		 unsigned offset, unsigned length, struct blocklist_ctx *ctx)
+{
+  if (ctx->num_entries++)
+    grub_printf (",");
+
+  grub_printf ("%llu", (unsigned long long) (sector - ctx->part_start));
+  if (num > 0)
+    grub_printf ("+%u", num);
+  if (offset != 0 || length != 0)
+    grub_printf ("[%u-%u]", offset, offset + length);
+}
+
+/* Helper for grub_cmd_blocklist.  */
+static void
+read_blocklist (grub_disk_addr_t sector, unsigned offset, unsigned length,
+		void *data)
+{
+  struct blocklist_ctx *ctx = data;
+
+  if (ctx->num_sectors > 0)
+    {
+      if (ctx->start_sector + ctx->num_sectors == sector
+	  && offset == 0 && length >= GRUB_DISK_SECTOR_SIZE)
+	{
+	  ctx->num_sectors += length >> GRUB_DISK_SECTOR_BITS;
+	  sector += length >> GRUB_DISK_SECTOR_BITS;
+	  length &= (GRUB_DISK_SECTOR_SIZE - 1);
+	}
+
+      if (!length)
+	return;
+      print_blocklist (ctx->start_sector, ctx->num_sectors, 0, 0, ctx);
+      ctx->num_sectors = 0;
+    }
+
+  if (offset)
+    {
+      unsigned l = length + offset;
+      l &= (GRUB_DISK_SECTOR_SIZE - 1);
+      l -= offset;
+      print_blocklist (sector, 0, offset, l, ctx);
+      length -= l;
+      sector++;
+      offset = 0;
+    }
+
+  if (!length)
+    return;
+
+  if (length & (GRUB_DISK_SECTOR_SIZE - 1))
+    {
+      if (length >> GRUB_DISK_SECTOR_BITS)
+	{
+	  print_blocklist (sector, length >> GRUB_DISK_SECTOR_BITS, 0, 0, ctx);
+	  sector += length >> GRUB_DISK_SECTOR_BITS;
+	}
+      print_blocklist (sector, 0, 0, length & (GRUB_DISK_SECTOR_SIZE - 1), ctx);
+    }
+  else
+    {
+      ctx->start_sector = sector;
+      ctx->num_sectors = length >> GRUB_DISK_SECTOR_BITS;
+    }
+}
+
+static grub_err_t
+grub_cmd_blocklist (grub_command_t cmd __attribute__ ((unused)),
+		    int argc, char **args)
+{
+  grub_file_t file;
+  char buf[GRUB_DISK_SECTOR_SIZE];
+  struct blocklist_ctx ctx = {
+    .start_sector = 0,
+    .num_sectors = 0,
+    .num_entries = 0,
+    .part_start = 0
+  };
+
+  if (argc < 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+
+  file = grub_file_open (args[0], GRUB_FILE_TYPE_PRINT_BLOCKLIST
+			 | GRUB_FILE_TYPE_NO_DECOMPRESS);
+  if (! file)
+    return grub_errno;
+
+  if (! file->device->disk)
+    return grub_error (GRUB_ERR_BAD_DEVICE,
+		       "this command is available only for disk devices");
+
+  ctx.part_start = grub_partition_get_start (file->device->disk->partition);
+
+  file->read_hook = read_blocklist;
+  file->read_hook_data = &ctx;
+
+  while (grub_file_read (file, buf, sizeof (buf)) > 0)
+    ;
+
+  if (ctx.num_sectors > 0)
+    print_blocklist (ctx.start_sector, ctx.num_sectors, 0, 0, &ctx);
+
+  grub_file_close (file);
+
+  return grub_errno;
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(blocklist)
+{
+  cmd = grub_register_command ("blocklist", grub_cmd_blocklist,
+			       N_("FILE"), N_("Print a block list."));
+}
+
+GRUB_MOD_FINI(blocklist)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/boot.c b/grub-core/commands/boot.c
new file mode 100644
index 0000000..bbca81e
--- /dev/null
+++ b/grub-core/commands/boot.c
@@ -0,0 +1,195 @@
+/* boot.c - command to boot an operating system */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2002,2003,2004,2005,2007,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/normal.h>
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/loader.h>
+#include <grub/kernel.h>
+#include <grub/mm.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_err_t (*grub_loader_boot_func) (void);
+static grub_err_t (*grub_loader_unload_func) (void);
+static int grub_loader_flags;
+
+struct grub_preboot
+{
+  grub_err_t (*preboot_func) (int);
+  grub_err_t (*preboot_rest_func) (void);
+  grub_loader_preboot_hook_prio_t prio;
+  struct grub_preboot *next;
+  struct grub_preboot *prev;
+};
+
+static int grub_loader_loaded;
+static struct grub_preboot *preboots_head = 0,
+  *preboots_tail = 0;
+
+int
+grub_loader_is_loaded (void)
+{
+  return grub_loader_loaded;
+}
+
+/* Register a preboot hook. */
+struct grub_preboot *
+grub_loader_register_preboot_hook (grub_err_t (*preboot_func) (int flags),
+				   grub_err_t (*preboot_rest_func) (void),
+				   grub_loader_preboot_hook_prio_t prio)
+{
+  struct grub_preboot *cur, *new_preboot;
+
+  if (! preboot_func && ! preboot_rest_func)
+    return 0;
+
+  new_preboot = (struct grub_preboot *)
+    grub_malloc (sizeof (struct grub_preboot));
+  if (! new_preboot)
+    return 0;
+
+  new_preboot->preboot_func = preboot_func;
+  new_preboot->preboot_rest_func = preboot_rest_func;
+  new_preboot->prio = prio;
+
+  for (cur = preboots_head; cur && cur->prio > prio; cur = cur->next);
+
+  if (cur)
+    {
+      new_preboot->next = cur;
+      new_preboot->prev = cur->prev;
+      cur->prev = new_preboot;
+    }
+  else
+    {
+      new_preboot->next = 0;
+      new_preboot->prev = preboots_tail;
+      preboots_tail = new_preboot;
+    }
+  if (new_preboot->prev)
+    new_preboot->prev->next = new_preboot;
+  else
+    preboots_head = new_preboot;
+
+  return new_preboot;
+}
+
+void
+grub_loader_unregister_preboot_hook (struct grub_preboot *hnd)
+{
+  struct grub_preboot *preb = hnd;
+
+  if (preb->next)
+    preb->next->prev = preb->prev;
+  else
+    preboots_tail = preb->prev;
+  if (preb->prev)
+    preb->prev->next = preb->next;
+  else
+    preboots_head = preb->next;
+
+  grub_free (preb);
+}
+
+void
+grub_loader_set (grub_err_t (*boot) (void),
+		 grub_err_t (*unload) (void),
+		 int flags)
+{
+  if (grub_loader_loaded && grub_loader_unload_func)
+    grub_loader_unload_func ();
+
+  grub_loader_boot_func = boot;
+  grub_loader_unload_func = unload;
+  grub_loader_flags = flags;
+
+  grub_loader_loaded = 1;
+}
+
+void
+grub_loader_unset(void)
+{
+  if (grub_loader_loaded && grub_loader_unload_func)
+    grub_loader_unload_func ();
+
+  grub_loader_boot_func = 0;
+  grub_loader_unload_func = 0;
+
+  grub_loader_loaded = 0;
+}
+
+grub_err_t
+grub_loader_boot (void)
+{
+  grub_err_t err = GRUB_ERR_NONE;
+  struct grub_preboot *cur;
+
+  if (! grub_loader_loaded)
+    return grub_error (GRUB_ERR_NO_KERNEL,
+		       N_("you need to load the kernel first"));
+
+  grub_machine_fini (grub_loader_flags);
+
+  for (cur = preboots_head; cur; cur = cur->next)
+    {
+      err = cur->preboot_func (grub_loader_flags);
+      if (err)
+	{
+	  for (cur = cur->prev; cur; cur = cur->prev)
+	    cur->preboot_rest_func ();
+	  return err;
+	}
+    }
+  err = (grub_loader_boot_func) ();
+
+  for (cur = preboots_tail; cur; cur = cur->prev)
+    if (! err)
+      err = cur->preboot_rest_func ();
+    else
+      cur->preboot_rest_func ();
+
+  return err;
+}
+
+/* boot */
+static grub_err_t
+grub_cmd_boot (struct grub_command *cmd __attribute__ ((unused)),
+		    int argc __attribute__ ((unused)),
+		    char *argv[] __attribute__ ((unused)))
+{
+  return grub_loader_boot ();
+}
+
+
+
+static grub_command_t cmd_boot;
+
+GRUB_MOD_INIT(boot)
+{
+  cmd_boot =
+    grub_register_command ("boot", grub_cmd_boot,
+			   0, N_("Boot an operating system."));
+}
+
+GRUB_MOD_FINI(boot)
+{
+  grub_unregister_command (cmd_boot);
+}
diff --git a/grub-core/commands/boottime.c b/grub-core/commands/boottime.c
new file mode 100644
index 0000000..dcc078c
--- /dev/null
+++ b/grub-core/commands/boottime.c
@@ -0,0 +1,65 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2013  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+
+static grub_err_t
+grub_cmd_boottime (struct grub_command *cmd __attribute__ ((unused)),
+		   int argc __attribute__ ((unused)),
+		   char *argv[] __attribute__ ((unused)))
+{
+  struct grub_boot_time *cur;
+  grub_uint64_t last_time = 0, start_time = 0;
+  if (!grub_boot_time_head)
+    {
+      grub_puts_ (N_("No boot time statistics is available\n"));
+      return 0;
+    }
+  start_time = last_time = grub_boot_time_head->tp;
+  for (cur = grub_boot_time_head; cur; cur = cur->next)
+    {
+      grub_uint32_t tmabs = cur->tp - start_time;
+      grub_uint32_t tmrel = cur->tp - last_time;
+      last_time = cur->tp;
+
+      grub_printf ("%3d.%03ds %2d.%03ds %s:%d %s\n", 
+		   tmabs / 1000, tmabs % 1000, tmrel / 1000, tmrel % 1000, cur->file, cur->line,
+		   cur->msg);
+    }
+ return 0;
+}
+
+static grub_command_t cmd_boottime;
+
+GRUB_MOD_INIT(boottime)
+{
+  cmd_boottime =
+    grub_register_command ("boottime", grub_cmd_boottime,
+			   0, N_("Show boot time statistics."));
+}
+
+GRUB_MOD_FINI(boottime)
+{
+  grub_unregister_command (cmd_boottime);
+}
diff --git a/grub-core/commands/cacheinfo.c b/grub-core/commands/cacheinfo.c
new file mode 100644
index 0000000..d34a346
--- /dev/null
+++ b/grub-core/commands/cacheinfo.c
@@ -0,0 +1,62 @@
+/* cacheinfo.c - disk cache statistics  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2008,2010  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+#include <grub/disk.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_err_t
+grub_rescue_cmd_info (struct grub_command *cmd __attribute__ ((unused)),
+    int argc __attribute__ ((unused)),
+    char *argv[] __attribute__ ((unused)))
+{
+  unsigned long hits, misses;
+
+  grub_disk_cache_get_performance (&hits, &misses);
+  if (hits + misses)
+    {
+      unsigned long ratio = hits * 10000 / (hits + misses);
+      grub_printf ("(%lu.%lu%%)\n", ratio / 100, ratio % 100);
+      grub_printf_ (N_("Disk cache statistics: hits = %lu (%lu.%02lu%%),"
+		     " misses = %lu\n"), ratio / 100, ratio % 100,
+		    hits, misses);
+    }
+  else
+    grub_printf ("%s\n", _("No disk cache statistics available\n"));    
+
+ return 0;
+}
+
+static grub_command_t cmd_cacheinfo;
+
+GRUB_MOD_INIT(cacheinfo)
+{
+  cmd_cacheinfo =
+    grub_register_command ("cacheinfo", grub_rescue_cmd_info,
+			   0, N_("Get disk cache info."));
+}
+
+GRUB_MOD_FINI(cacheinfo)
+{
+  grub_unregister_command (cmd_cacheinfo);
+}
diff --git a/grub-core/commands/cat.c b/grub-core/commands/cat.c
new file mode 100644
index 0000000..ba5f006
--- /dev/null
+++ b/grub-core/commands/cat.c
@@ -0,0 +1,170 @@
+/* cat.c - command to show the contents of a file  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2003,2005,2007,2008  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/file.h>
+#include <grub/disk.h>
+#include <grub/term.h>
+#include <grub/misc.h>
+#include <grub/extcmd.h>
+#include <grub/i18n.h>
+#include <grub/charset.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const struct grub_arg_option options[] =
+  {
+    {"dos", -1, 0, N_("Accept DOS-style CR/NL line endings."), 0, 0},
+    {0, 0, 0, 0, 0, 0}
+  };
+
+static grub_err_t
+grub_cmd_cat (grub_extcmd_context_t ctxt, int argc, char **args)
+{
+  struct grub_arg_list *state = ctxt->state;
+  int dos = 0;
+  grub_file_t file;
+  unsigned char buf[GRUB_DISK_SECTOR_SIZE];
+  grub_ssize_t size;
+  int key = GRUB_TERM_NO_KEY;
+  grub_uint32_t code = 0;
+  int count = 0;
+  unsigned char utbuf[GRUB_MAX_UTF8_PER_CODEPOINT + 1];
+  int utcount = 0;
+  int is_0d = 0;
+  int j;
+
+  if (state[0].set)
+    dos = 1;
+
+  if (argc != 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+
+  file = grub_file_open (args[0], GRUB_FILE_TYPE_CAT);
+  if (! file)
+    return grub_errno;
+
+  while ((size = grub_file_read (file, buf, sizeof (buf))) > 0
+	 && key != GRUB_TERM_ESC)
+    {
+      int i;
+
+      for (i = 0; i < size; i++)
+	{
+	  utbuf[utcount++] = buf[i];
+
+	  if (is_0d && buf[i] != '\n')
+	    {
+	      grub_setcolorstate (GRUB_TERM_COLOR_HIGHLIGHT);
+	      grub_printf ("<%x>", (int) '\r');
+	      grub_setcolorstate (GRUB_TERM_COLOR_STANDARD);
+	    }
+
+	  is_0d = 0;
+
+	  if (!grub_utf8_process (buf[i], &code, &count))
+	    {
+	      grub_setcolorstate (GRUB_TERM_COLOR_HIGHLIGHT);
+	      for (j = 0; j < utcount - 1; j++)
+		grub_printf ("<%x>", (unsigned int) utbuf[j]);
+	      code = 0;
+	      count = 0;
+	      if (utcount == 1 || !grub_utf8_process (buf[i], &code, &count))
+		{
+		  grub_printf ("<%x>", (unsigned int) buf[i]);
+		  code = 0;
+		  count = 0;
+		  utcount = 0;
+		  grub_setcolorstate (GRUB_TERM_COLOR_STANDARD);
+		  continue;
+		}
+	      grub_setcolorstate (GRUB_TERM_COLOR_STANDARD);
+	      utcount = 1;
+	    }
+	  if (count)
+	    continue;
+
+	  if ((code >= 0xa1 || grub_isprint (code)
+	       || grub_isspace (code)) && code != '\r')
+	    {
+	      grub_printf ("%C", code);
+	      count = 0; 
+	      code = 0;
+	      utcount = 0;
+	      continue;
+	    }
+
+	  if (dos && code == '\r')
+	    {
+	      is_0d = 1;
+	      count = 0; 
+	      code = 0;
+	      utcount = 0;
+	      continue;
+	    }
+
+	  grub_setcolorstate (GRUB_TERM_COLOR_HIGHLIGHT);
+	  for (j = 0; j < utcount; j++)
+	    grub_printf ("<%x>", (unsigned int) utbuf[j]);
+	  grub_setcolorstate (GRUB_TERM_COLOR_STANDARD);
+	  count = 0; 
+	  code = 0;
+	  utcount = 0;
+	}
+
+      do
+	key = grub_getkey_noblock ();
+      while (key != GRUB_TERM_ESC && key != GRUB_TERM_NO_KEY);
+    }
+
+  if (is_0d)
+    {
+      grub_setcolorstate (GRUB_TERM_COLOR_HIGHLIGHT);
+      grub_printf ("<%x>", (unsigned int) '\r');
+      grub_setcolorstate (GRUB_TERM_COLOR_STANDARD);
+    }
+
+  if (utcount)
+    {
+      grub_setcolorstate (GRUB_TERM_COLOR_HIGHLIGHT);
+      for (j = 0; j < utcount; j++)
+	grub_printf ("<%x>", (unsigned int) utbuf[j]);
+      grub_setcolorstate (GRUB_TERM_COLOR_STANDARD);
+    }
+
+  grub_xputs ("\n");
+  grub_refresh ();
+  grub_file_close (file);
+
+  return 0;
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT(cat)
+{
+  cmd = grub_register_extcmd ("cat", grub_cmd_cat, 0,
+			      N_("FILE"), N_("Show the contents of a file."),
+			      options);
+}
+
+GRUB_MOD_FINI(cat)
+{
+  grub_unregister_extcmd (cmd);
+}
diff --git a/grub-core/commands/cmp.c b/grub-core/commands/cmp.c
new file mode 100644
index 0000000..e9c3b25
--- /dev/null
+++ b/grub-core/commands/cmp.c
@@ -0,0 +1,119 @@
+/* cmd.c - command to cmp an operating system */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2003,2005,2006,2007,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/file.h>
+#include <grub/mm.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+#define BUFFER_SIZE 512
+
+static grub_err_t
+grub_cmd_cmp (grub_command_t cmd __attribute__ ((unused)),
+	      int argc, char **args)
+{
+  grub_ssize_t rd1, rd2;
+  grub_off_t pos;
+  grub_file_t file1 = 0;
+  grub_file_t file2 = 0;
+  char *buf1 = 0;
+  char *buf2 = 0;
+
+  if (argc != 2)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("two arguments expected"));
+
+  grub_printf_ (N_("Compare file `%s' with `%s':\n"), args[0],
+		args[1]);
+
+  file1 = grub_file_open (args[0], GRUB_FILE_TYPE_CMP);
+  file2 = grub_file_open (args[1], GRUB_FILE_TYPE_CMP);
+  if (! file1 || ! file2)
+    goto cleanup;
+
+  if (grub_file_size (file1) != grub_file_size (file2))
+    grub_printf_ (N_("Files differ in size: %llu [%s], %llu [%s]\n"),
+		  (unsigned long long) grub_file_size (file1), args[0],
+		  (unsigned long long) grub_file_size (file2), args[1]);
+  else
+    {
+      pos = 0;
+
+      buf1 = grub_malloc (BUFFER_SIZE);
+      buf2 = grub_malloc (BUFFER_SIZE);
+
+      if (! buf1 || ! buf2)
+        goto cleanup;
+
+      do
+	{
+	  int i;
+
+	  rd1 = grub_file_read (file1, buf1, BUFFER_SIZE);
+	  rd2 = grub_file_read (file2, buf2, BUFFER_SIZE);
+
+	  if (rd1 != rd2)
+	    goto cleanup;
+
+	  for (i = 0; i < rd2; i++)
+	    {
+	      if (buf1[i] != buf2[i])
+		{
+		  grub_printf_ (N_("Files differ at the offset %llu: 0x%x [%s], 0x%x [%s]\n"),
+				(unsigned long long) (i + pos), buf1[i],
+				args[0], buf2[i], args[1]);
+		  goto cleanup;
+		}
+	    }
+	  pos += BUFFER_SIZE;
+
+	}
+      while (rd2);
+
+      /* TRANSLATORS: it's always exactly 2 files.  */
+      grub_printf_ (N_("The files are identical.\n"));
+    }
+
+cleanup:
+
+  grub_free (buf1);
+  grub_free (buf2);
+  if (file1)
+    grub_file_close (file1);
+  if (file2)
+    grub_file_close (file2);
+
+  return grub_errno;
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(cmp)
+{
+  cmd = grub_register_command ("cmp", grub_cmd_cmp,
+			       N_("FILE1 FILE2"), N_("Compare two files."));
+}
+
+GRUB_MOD_FINI(cmp)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/configfile.c b/grub-core/commands/configfile.c
new file mode 100644
index 0000000..f2d2abb
--- /dev/null
+++ b/grub-core/commands/configfile.c
@@ -0,0 +1,98 @@
+/* configfile.c - command to manually load config file  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2005,2006,2007,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/term.h>
+#include <grub/env.h>
+#include <grub/normal.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_err_t
+grub_cmd_source (grub_command_t cmd, int argc, char **args)
+{
+  int new_env, extractor;
+
+  if (argc != 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+
+  extractor = (cmd->name[0] == 'e');
+  new_env = (cmd->name[extractor ? sizeof ("extract_entries_") - 1 : 0] == 'c');
+
+  if (new_env)
+    grub_cls ();
+
+  if (new_env && !extractor)
+    grub_env_context_open ();
+  if (extractor)
+    grub_env_extractor_open (!new_env);
+
+  grub_normal_execute (args[0], 1, ! new_env);
+
+  if (new_env && !extractor)
+    grub_env_context_close ();
+  if (extractor)
+    grub_env_extractor_close (!new_env);
+
+  return 0;
+}
+
+static grub_command_t cmd_configfile, cmd_source, cmd_dot;
+static grub_command_t cmd_extractor_source, cmd_extractor_configfile;
+
+GRUB_MOD_INIT(configfile)
+{
+  cmd_configfile =
+    grub_register_command ("configfile", grub_cmd_source,
+			   N_("FILE"), N_("Load another config file."));
+  cmd_source =
+    grub_register_command ("source", grub_cmd_source,
+			   N_("FILE"),
+			   N_("Load another config file without changing context.")
+			   );
+
+  cmd_extractor_source =
+    grub_register_command ("extract_entries_source", grub_cmd_source,
+			   N_("FILE"),
+			   N_("Load another config file without changing context but take only menu entries.")
+			   );
+
+  cmd_extractor_configfile =
+    grub_register_command ("extract_entries_configfile", grub_cmd_source,
+			   N_("FILE"),
+			   N_("Load another config file but take only menu entries.")
+			   );
+
+  cmd_dot =
+    grub_register_command (".", grub_cmd_source,
+			   N_("FILE"),
+			   N_("Load another config file without changing context.")
+			   );
+}
+
+GRUB_MOD_FINI(configfile)
+{
+  grub_unregister_command (cmd_configfile);
+  grub_unregister_command (cmd_source);
+  grub_unregister_command (cmd_extractor_configfile);
+  grub_unregister_command (cmd_extractor_source);
+  grub_unregister_command (cmd_dot);
+}
diff --git a/grub-core/commands/date.c b/grub-core/commands/date.c
new file mode 100644
index 0000000..5cb4faf
--- /dev/null
+++ b/grub-core/commands/date.c
@@ -0,0 +1,149 @@
+/* date.c - command to display/set current datetime.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2008  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/err.h>
+#include <grub/misc.h>
+#include <grub/datetime.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+#define GRUB_DATETIME_SET_YEAR		1
+#define GRUB_DATETIME_SET_MONTH		2
+#define GRUB_DATETIME_SET_DAY		4
+#define GRUB_DATETIME_SET_HOUR		8
+#define GRUB_DATETIME_SET_MINUTE	16
+#define GRUB_DATETIME_SET_SECOND	32
+
+static grub_err_t
+grub_cmd_date (grub_command_t cmd __attribute__ ((unused)),
+               int argc, char **args)
+{
+  struct grub_datetime datetime;
+  int limit[6][2] = {{1980, 2079}, {1, 12}, {1, 31}, {0, 23}, {0, 59}, {0, 59}};
+  int value[6], mask;
+
+  if (argc == 0)
+    {
+      if (grub_get_datetime (&datetime))
+        return grub_errno;
+
+      grub_printf ("%d-%02d-%02d %02d:%02d:%02d %s\n",
+                   datetime.year, datetime.month, datetime.day,
+                   datetime.hour, datetime.minute, datetime.second,
+                   grub_get_weekday_name (&datetime));
+
+      return 0;
+    }
+
+  grub_memset (&value, 0, sizeof (value));
+  mask = 0;
+
+  for (; argc; argc--, args++)
+    {
+      const char *p;
+      char c;
+      int m1, ofs, n, cur_mask;
+
+      p = args[0];
+      m1 = grub_strtoul (p, &p, 10);
+
+      c = *p;
+      if (c == '-')
+        ofs = 0;
+      else if (c == ':')
+        ofs = 3;
+      else
+        goto fail;
+
+      value[ofs] = m1;
+      cur_mask = (1 << ofs);
+      mask &= ~(cur_mask * (1 + 2 + 4));
+
+      for (n = 1; (n < 3) && (*p); n++)
+        {
+          if (*p != c)
+            goto fail;
+
+          value[ofs + n] = grub_strtoul (p + 1, &p, 10);
+          cur_mask |= (1 << (ofs + n));
+        }
+
+      if (*p)
+        goto fail;
+
+      if ((ofs == 0) && (n == 2))
+        {
+          value[ofs + 2] = value[ofs + 1];
+          value[ofs + 1] = value[ofs];
+          ofs++;
+          cur_mask <<= 1;
+        }
+
+      for (; n; n--, ofs++)
+        if ((value [ofs] < limit[ofs][0]) ||
+            (value [ofs] > limit[ofs][1]))
+          goto fail;
+
+      mask |= cur_mask;
+    }
+
+  if (grub_get_datetime (&datetime))
+    return grub_errno;
+
+  if (mask & GRUB_DATETIME_SET_YEAR)
+    datetime.year = value[0];
+
+  if (mask & GRUB_DATETIME_SET_MONTH)
+    datetime.month = value[1];
+
+  if (mask & GRUB_DATETIME_SET_DAY)
+    datetime.day = value[2];
+
+  if (mask & GRUB_DATETIME_SET_HOUR)
+    datetime.hour = value[3];
+
+  if (mask & GRUB_DATETIME_SET_MINUTE)
+    datetime.minute = value[4];
+
+  if (mask & GRUB_DATETIME_SET_SECOND)
+    datetime.second = value[5];
+
+  return grub_set_datetime (&datetime);
+
+fail:
+  return grub_error (GRUB_ERR_BAD_ARGUMENT, "invalid datetime");
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(date)
+{
+  cmd =
+    grub_register_command ("date", grub_cmd_date,
+			   N_("[[year-]month-day] [hour:minute[:second]]"),
+			   N_("Display/set current datetime."));
+}
+
+GRUB_MOD_FINI(date)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/echo.c b/grub-core/commands/echo.c
new file mode 100644
index 0000000..81ba50d
--- /dev/null
+++ b/grub-core/commands/echo.c
@@ -0,0 +1,141 @@
+/* echo.c - Command to display a line of text  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2006,2007,2010  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/extcmd.h>
+#include <grub/i18n.h>
+#include <grub/term.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const struct grub_arg_option options[] =
+  {
+    {0, 'n', 0, N_("Do not output the trailing newline."), 0, 0},
+    {0, 'e', 0, N_("Enable interpretation of backslash escapes."), 0, 0},
+    {0, 0, 0, 0, 0, 0}
+  };
+
+static grub_err_t
+grub_cmd_echo (grub_extcmd_context_t ctxt, int argc, char **args)
+{
+  struct grub_arg_list *state = ctxt->state;
+  int newline = 1;
+  int i;
+
+  /* Check if `-n' was used.  */
+  if (state[0].set)
+    newline = 0;
+
+  for (i = 0; i < argc; i++)
+    {
+      char *arg = *args;
+      /* Unescaping results in a string no longer than the original.  */
+      char *unescaped = grub_malloc (grub_strlen (arg) + 1);
+      char *p = unescaped;
+      args++;
+
+      if (!unescaped)
+	return grub_errno;
+
+      while (*arg)
+	{
+	  /* In case `-e' is used, parse backslashes.  */
+	  if (*arg == '\\' && state[1].set)
+	    {
+	      arg++;
+	      if (*arg == '\0')
+		break;
+
+	      switch (*arg)
+		{
+		case '\\':
+		  *p++ = '\\';
+		  break;
+
+		case 'a':
+		  *p++ = '\a';
+		  break;
+
+		case 'c':
+		  newline = 0;
+		  break;
+
+		case 'f':
+		  *p++ = '\f';
+		  break;
+
+		case 'n':
+		  *p++ = '\n';
+		  break;
+
+		case 'r':
+		  *p++ = '\r';
+		  break;
+
+		case 't':
+		  *p++ = '\t';
+		  break;
+
+		case 'v':
+		  *p++ = '\v';
+		  break;
+		}
+	      arg++;
+	      continue;
+	    }
+
+	  /* This was not an escaped character, or escaping is not
+	     enabled.  */
+	  *p++ = *arg;
+	  arg++;
+	}
+
+      *p = '\0';
+      grub_xputs (unescaped);
+      grub_free (unescaped);
+
+      /* If another argument follows, insert a space.  */
+      if (i != argc - 1)
+	grub_printf (" " );
+    }
+
+  if (newline)
+    grub_printf ("\n");
+
+  grub_refresh ();  
+
+  return 0;
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT(echo)
+{
+  cmd = grub_register_extcmd ("echo", grub_cmd_echo,
+			      GRUB_COMMAND_ACCEPT_DASH
+			      | GRUB_COMMAND_OPTIONS_AT_START,
+			      N_("[-e|-n] STRING"), N_("Display a line of text."),
+			      options);
+}
+
+GRUB_MOD_FINI(echo)
+{
+  grub_unregister_extcmd (cmd);
+}
diff --git a/grub-core/commands/efi/efifwsetup.c b/grub-core/commands/efi/efifwsetup.c
new file mode 100644
index 0000000..eaca032
--- /dev/null
+++ b/grub-core/commands/efi/efifwsetup.c
@@ -0,0 +1,90 @@
+/* fwsetup.c - Reboot into firmware setup menu. */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2012  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/types.h>
+#include <grub/mm.h>
+#include <grub/misc.h>
+#include <grub/efi/api.h>
+#include <grub/efi/efi.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_err_t
+grub_cmd_fwsetup (grub_command_t cmd __attribute__ ((unused)),
+		  int argc __attribute__ ((unused)),
+		  char **args __attribute__ ((unused)))
+{
+  grub_efi_uint64_t *old_os_indications;
+  grub_efi_uint64_t os_indications = GRUB_EFI_OS_INDICATIONS_BOOT_TO_FW_UI;
+  grub_err_t status;
+  grub_size_t oi_size;
+  grub_efi_guid_t global = GRUB_EFI_GLOBAL_VARIABLE_GUID;
+
+  grub_efi_get_variable ("OsIndications", &global, &oi_size,
+			 (void **) &old_os_indications);
+
+  if (old_os_indications != NULL && oi_size == sizeof (os_indications))
+    os_indications |= *old_os_indications;
+
+  status = grub_efi_set_variable ("OsIndications", &global, &os_indications,
+				  sizeof (os_indications));
+  if (status != GRUB_ERR_NONE)
+    return status;
+
+  grub_reboot ();
+
+  return GRUB_ERR_BUG;
+}
+
+static grub_command_t cmd = NULL;
+
+static grub_efi_boolean_t
+efifwsetup_is_supported (void)
+{
+  grub_efi_uint64_t *os_indications_supported = NULL;
+  grub_size_t oi_size = 0;
+  grub_efi_guid_t global = GRUB_EFI_GLOBAL_VARIABLE_GUID;
+
+  grub_efi_get_variable ("OsIndicationsSupported", &global, &oi_size,
+			 (void **) &os_indications_supported);
+
+  if (!os_indications_supported)
+    return 0;
+
+  if (*os_indications_supported & GRUB_EFI_OS_INDICATIONS_BOOT_TO_FW_UI)
+    return 1;
+
+  return 0;
+}
+
+GRUB_MOD_INIT (efifwsetup)
+{
+  if (efifwsetup_is_supported ())
+    cmd = grub_register_command ("fwsetup", grub_cmd_fwsetup, NULL,
+				 N_("Reboot into firmware setup menu."));
+
+}
+
+GRUB_MOD_FINI (efifwsetup)
+{
+  if (cmd)
+    grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/efi/fixvideo.c b/grub-core/commands/efi/fixvideo.c
new file mode 100644
index 0000000..d9d54a2
--- /dev/null
+++ b/grub-core/commands/efi/fixvideo.c
@@ -0,0 +1,114 @@
+/* fixvideo.c - fix video problem in efi */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/file.h>
+#include <grub/pci.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+#include <grub/mm.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static struct grub_video_patch
+{
+  const char *name;
+  grub_uint32_t pci_id;
+  grub_uint32_t mmio_bar;
+  grub_uint32_t mmio_reg;
+  grub_uint32_t mmio_old;
+} video_patches[] =
+  {
+    {"Intel 945GM", 0x27a28086, 0, 0x71184, 0x1000000}, /* DSPBBASE  */
+    {"Intel 965GM", 0x2a028086, 0, 0x7119C, 0x1000000}, /* DSPBSURF  */
+    {0, 0, 0, 0, 0}
+  };
+
+static int
+scan_card (grub_pci_device_t dev, grub_pci_id_t pciid,
+	   void *data __attribute__ ((unused)))
+{
+  grub_pci_address_t addr;
+
+  addr = grub_pci_make_address (dev, GRUB_PCI_REG_CLASS);
+  if (grub_pci_read_byte (addr + 3) == 0x3)
+    {
+      struct grub_video_patch *p = video_patches;
+
+      while (p->name)
+	{
+	  if (p->pci_id == pciid)
+	    {
+	      grub_addr_t base;
+
+	      grub_dprintf ("fixvideo", "Found graphic card: %s\n", p->name);
+	      addr += 8 + p->mmio_bar * 4;
+	      base = grub_pci_read (addr);
+	      if ((! base) || (base & GRUB_PCI_ADDR_SPACE_IO) ||
+		  (base & GRUB_PCI_ADDR_MEM_PREFETCH))
+		grub_dprintf ("fixvideo", "Invalid MMIO bar %d\n", p->mmio_bar);
+	      else
+		{
+		  base &= GRUB_PCI_ADDR_MEM_MASK;
+		  base += p->mmio_reg;
+
+		  if (*((volatile grub_uint32_t *) base) != p->mmio_old)
+		    grub_dprintf ("fixvideo", "Old value doesn't match\n");
+		  else
+		    {
+		      *((volatile grub_uint32_t *) base) = 0;
+		      if (*((volatile grub_uint32_t *) base))
+			grub_dprintf ("fixvideo", "Setting MMIO fails\n");
+		    }
+		}
+
+	      return 1;
+	    }
+	  p++;
+	}
+
+      grub_dprintf ("fixvideo", "Unknown graphic card: %x\n", pciid);
+    }
+
+  return 0;
+}
+
+static grub_err_t
+grub_cmd_fixvideo (grub_command_t cmd __attribute__ ((unused)),
+		   int argc __attribute__ ((unused)),
+		   char *argv[] __attribute__ ((unused)))
+{
+  grub_pci_iterate (scan_card, NULL);
+  return 0;
+}
+
+static grub_command_t cmd_fixvideo;
+
+GRUB_MOD_INIT(fixvideo)
+{
+  cmd_fixvideo = grub_register_command ("fix_video", grub_cmd_fixvideo,
+					0, N_("Fix video problem."));
+
+}
+
+GRUB_MOD_FINI(fixvideo)
+{
+  grub_unregister_command (cmd_fixvideo);
+}
diff --git a/grub-core/commands/efi/loadbios.c b/grub-core/commands/efi/loadbios.c
new file mode 100644
index 0000000..5c7725f
--- /dev/null
+++ b/grub-core/commands/efi/loadbios.c
@@ -0,0 +1,222 @@
+/* loadbios.c - command to load a bios dump  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/file.h>
+#include <grub/efi/efi.h>
+#include <grub/pci.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_efi_guid_t acpi_guid = GRUB_EFI_ACPI_TABLE_GUID;
+static grub_efi_guid_t acpi2_guid = GRUB_EFI_ACPI_20_TABLE_GUID;
+static grub_efi_guid_t smbios_guid = GRUB_EFI_SMBIOS_TABLE_GUID;
+
+#define EBDA_SEG_ADDR	0x40e
+#define LOW_MEM_ADDR	0x413
+#define FAKE_EBDA_SEG	0x9fc0
+
+#define BLANK_MEM	0xffffffff
+#define VBIOS_ADDR	0xc0000
+#define SBIOS_ADDR	0xf0000
+
+static int
+enable_rom_area (void)
+{
+  grub_pci_address_t addr;
+  grub_uint32_t *rom_ptr;
+  grub_pci_device_t dev = { .bus = 0, .device = 0, .function = 0};
+
+  rom_ptr = (grub_uint32_t *) VBIOS_ADDR;
+  if (*rom_ptr != BLANK_MEM)
+    {
+      grub_puts_ (N_("ROM image is present."));
+      return 0;
+    }
+
+  /* FIXME: should be macroified.  */
+  addr = grub_pci_make_address (dev, 144);
+  grub_pci_write_byte (addr++, 0x30);
+  grub_pci_write_byte (addr++, 0x33);
+  grub_pci_write_byte (addr++, 0x33);
+  grub_pci_write_byte (addr++, 0x33);
+  grub_pci_write_byte (addr++, 0x33);
+  grub_pci_write_byte (addr++, 0x33);
+  grub_pci_write_byte (addr++, 0x33);
+  grub_pci_write_byte (addr, 0);
+
+  *rom_ptr = 0;
+  if (*rom_ptr != 0)
+    {
+      grub_puts_ (N_("Can\'t enable ROM area."));
+      return 0;
+    }
+
+  return 1;
+}
+
+static void
+lock_rom_area (void)
+{
+  grub_pci_address_t addr;
+  grub_pci_device_t dev = { .bus = 0, .device = 0, .function = 0};
+
+  /* FIXME: should be macroified.  */
+  addr = grub_pci_make_address (dev, 144);
+  grub_pci_write_byte (addr++, 0x10);
+  grub_pci_write_byte (addr++, 0x11);
+  grub_pci_write_byte (addr++, 0x11);
+  grub_pci_write_byte (addr++, 0x11);
+  grub_pci_write_byte (addr, 0x11);
+}
+
+static void
+fake_bios_data (int use_rom)
+{
+  unsigned i;
+  void *acpi, *smbios;
+  grub_uint16_t *ebda_seg_ptr, *low_mem_ptr;
+
+  ebda_seg_ptr = (grub_uint16_t *) EBDA_SEG_ADDR;
+  low_mem_ptr = (grub_uint16_t *) LOW_MEM_ADDR;
+  if ((*ebda_seg_ptr) || (*low_mem_ptr))
+    return;
+
+  acpi = 0;
+  smbios = 0;
+  for (i = 0; i < grub_efi_system_table->num_table_entries; i++)
+    {
+      grub_efi_packed_guid_t *guid =
+	&grub_efi_system_table->configuration_table[i].vendor_guid;
+
+      if (! grub_memcmp (guid, &acpi2_guid, sizeof (grub_efi_guid_t)))
+	{
+	  acpi = grub_efi_system_table->configuration_table[i].vendor_table;
+	  grub_dprintf ("efi", "ACPI2: %p\n", acpi);
+	}
+      else if (! grub_memcmp (guid, &acpi_guid, sizeof (grub_efi_guid_t)))
+	{
+	  void *t;
+
+	  t = grub_efi_system_table->configuration_table[i].vendor_table;
+	  if (! acpi)
+	    acpi = t;
+	  grub_dprintf ("efi", "ACPI: %p\n", t);
+	}
+      else if (! grub_memcmp (guid, &smbios_guid, sizeof (grub_efi_guid_t)))
+	{
+	  smbios = grub_efi_system_table->configuration_table[i].vendor_table;
+	  grub_dprintf ("efi", "SMBIOS: %p\n", smbios);
+	}
+    }
+
+  *ebda_seg_ptr = FAKE_EBDA_SEG;
+  *low_mem_ptr = (FAKE_EBDA_SEG >> 6);
+
+  *((grub_uint16_t *) (FAKE_EBDA_SEG << 4)) = 640 - *low_mem_ptr;
+
+  if (acpi)
+    grub_memcpy ((char *) ((FAKE_EBDA_SEG << 4) + 16), acpi, 1024 - 16);
+
+  if ((use_rom) && (smbios))
+    grub_memcpy ((char *) SBIOS_ADDR, (char *) smbios + 16, 16);
+}
+
+static grub_err_t
+grub_cmd_fakebios (struct grub_command *cmd __attribute__ ((unused)),
+		   int argc __attribute__ ((unused)),
+		   char *argv[] __attribute__ ((unused)))
+{
+  if (enable_rom_area ())
+    {
+      fake_bios_data (1);
+      lock_rom_area ();
+    }
+  else
+    fake_bios_data (0);
+
+  return 0;
+}
+
+static grub_err_t
+grub_cmd_loadbios (grub_command_t cmd __attribute__ ((unused)),
+		   int argc, char *argv[])
+{
+  grub_file_t file;
+  int size;
+
+  if (argc == 0)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+
+  if (argc > 1)
+    {
+      file = grub_file_open (argv[1], GRUB_FILE_TYPE_VBE_DUMP);
+      if (! file)
+	return grub_errno;
+
+      if (file->size != 4)
+	grub_error (GRUB_ERR_BAD_ARGUMENT, "invalid int10 dump size");
+      else
+	grub_file_read (file, (void *) 0x40, 4);
+
+      grub_file_close (file);
+      if (grub_errno)
+	return grub_errno;
+    }
+
+  file = grub_file_open (argv[0], GRUB_FILE_TYPE_VBE_DUMP);
+  if (! file)
+    return grub_errno;
+
+  size = file->size;
+  if ((size < 0x10000) || (size > 0x40000))
+    grub_error (GRUB_ERR_BAD_ARGUMENT, "invalid bios dump size");
+  else if (enable_rom_area ())
+    {
+      grub_file_read (file, (void *) VBIOS_ADDR, size);
+      fake_bios_data (size <= 0x40000);
+      lock_rom_area ();
+    }
+
+  grub_file_close (file);
+  return grub_errno;
+}
+
+static grub_command_t cmd_fakebios, cmd_loadbios;
+
+GRUB_MOD_INIT(loadbios)
+{
+  cmd_fakebios = grub_register_command_lockdown ("fakebios", grub_cmd_fakebios,
+						 0, N_("Create BIOS-like structures for"
+						       " backward compatibility with"
+						       " existing OS."));
+
+  cmd_loadbios = grub_register_command_lockdown ("loadbios", grub_cmd_loadbios,
+						 N_("BIOS_DUMP [INT10_DUMP]"),
+						 N_("Load BIOS dump."));
+}
+
+GRUB_MOD_FINI(loadbios)
+{
+  grub_unregister_command (cmd_fakebios);
+  grub_unregister_command (cmd_loadbios);
+}
diff --git a/grub-core/commands/efi/lsefi.c b/grub-core/commands/efi/lsefi.c
new file mode 100644
index 0000000..d1ce99a
--- /dev/null
+++ b/grub-core/commands/efi/lsefi.c
@@ -0,0 +1,155 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2012  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <grub/types.h>
+#include <grub/mm.h>
+#include <grub/misc.h>
+#include <grub/efi/api.h>
+#include <grub/efi/edid.h>
+#include <grub/efi/pci.h>
+#include <grub/efi/efi.h>
+#include <grub/efi/uga_draw.h>
+#include <grub/efi/graphics_output.h>
+#include <grub/efi/console_control.h>
+#include <grub/command.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+struct known_protocol
+{
+  grub_efi_guid_t guid;
+  const char *name;
+} known_protocols[] = 
+  {
+    { GRUB_EFI_DISK_IO_GUID, "disk" },
+    { GRUB_EFI_BLOCK_IO_GUID, "block" },
+    { GRUB_EFI_SERIAL_IO_GUID, "serial" },
+    { GRUB_EFI_SIMPLE_NETWORK_GUID, "network" },
+    { GRUB_EFI_PXE_GUID, "pxe" },
+    { GRUB_EFI_DEVICE_PATH_GUID, "device path" },
+    { GRUB_EFI_PCI_IO_GUID, "PCI" },
+    { GRUB_EFI_PCI_ROOT_IO_GUID, "PCI root" },
+    { GRUB_EFI_EDID_ACTIVE_GUID, "active EDID" },
+    { GRUB_EFI_EDID_DISCOVERED_GUID, "discovered EDID" },
+    { GRUB_EFI_EDID_OVERRIDE_GUID, "override EDID" },
+    { GRUB_EFI_GOP_GUID, "GOP" },
+    { GRUB_EFI_UGA_DRAW_GUID, "UGA draw" },
+    { GRUB_EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL_GUID, "simple text output" },
+    { GRUB_EFI_SIMPLE_TEXT_INPUT_PROTOCOL_GUID, "simple text input" },
+    { GRUB_EFI_SIMPLE_POINTER_PROTOCOL_GUID, "simple pointer" },
+    { GRUB_EFI_CONSOLE_CONTROL_GUID, "console control" },
+    { GRUB_EFI_ABSOLUTE_POINTER_PROTOCOL_GUID, "absolute pointer" },
+    { GRUB_EFI_DRIVER_BINDING_PROTOCOL_GUID, "EFI driver binding" },
+    { GRUB_EFI_LOAD_FILE_PROTOCOL_GUID, "load file" },
+    { GRUB_EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID, "simple FS" },
+    { GRUB_EFI_TAPE_IO_PROTOCOL_GUID, "tape I/O" },
+    { GRUB_EFI_UNICODE_COLLATION_PROTOCOL_GUID, "unicode collation" },
+    { GRUB_EFI_SCSI_IO_PROTOCOL_GUID, "SCSI I/O" },
+    { GRUB_EFI_USB2_HC_PROTOCOL_GUID, "USB host" },
+    { GRUB_EFI_DEBUG_SUPPORT_PROTOCOL_GUID, "debug support" },
+    { GRUB_EFI_DEBUGPORT_PROTOCOL_GUID, "debug port" },
+    { GRUB_EFI_DECOMPRESS_PROTOCOL_GUID, "decompress" },
+    { GRUB_EFI_LOADED_IMAGE_PROTOCOL_GUID, "loaded image" },
+    { GRUB_EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID, "device path to text" },
+    { GRUB_EFI_DEVICE_PATH_UTILITIES_PROTOCOL_GUID, "device path utilities" },
+    { GRUB_EFI_DEVICE_PATH_FROM_TEXT_PROTOCOL_GUID, "device path from text" },
+    { GRUB_EFI_HII_CONFIG_ROUTING_PROTOCOL_GUID, "HII config routing" },
+    { GRUB_EFI_HII_DATABASE_PROTOCOL_GUID, "HII database" },
+    { GRUB_EFI_HII_STRING_PROTOCOL_GUID, "HII string" },
+    { GRUB_EFI_HII_IMAGE_PROTOCOL_GUID, "HII image" },
+    { GRUB_EFI_HII_FONT_PROTOCOL_GUID, "HII font" },
+    { GRUB_EFI_COMPONENT_NAME2_PROTOCOL_GUID, "component name 2" },
+    { GRUB_EFI_HII_CONFIGURATION_ACCESS_PROTOCOL_GUID,
+      "HII configuration access" },
+    { GRUB_EFI_USB_IO_PROTOCOL_GUID, "USB I/O" },
+  };
+
+static grub_err_t
+grub_cmd_lsefi (grub_command_t cmd __attribute__ ((unused)),
+		int argc __attribute__ ((unused)),
+		char **args __attribute__ ((unused)))
+{
+  grub_efi_handle_t *handles;
+  grub_efi_uintn_t num_handles;
+  unsigned i, j, k;
+
+  handles = grub_efi_locate_handle (GRUB_EFI_ALL_HANDLES,
+				    NULL, NULL, &num_handles);
+
+  for (i = 0; i < num_handles; i++)
+    {
+      grub_efi_handle_t handle = handles[i];
+      grub_efi_status_t status;
+      grub_efi_uintn_t num_protocols;
+      grub_efi_packed_guid_t **protocols;
+      grub_efi_device_path_t *dp;
+
+      grub_printf ("Handle %p\n", handle);
+
+      dp = grub_efi_get_device_path (handle);
+      if (dp)
+	{
+	  grub_printf ("  ");
+	  grub_efi_print_device_path (dp);
+	}
+
+      status = efi_call_3 (grub_efi_system_table->boot_services->protocols_per_handle,
+			   handle, &protocols, &num_protocols);
+      if (status != GRUB_EFI_SUCCESS) {
+	grub_printf ("Unable to retrieve protocols\n");
+	continue;
+      }
+      for (j = 0; j < num_protocols; j++)
+	{
+	  for (k = 0; k < ARRAY_SIZE (known_protocols); k++)
+	    if (grub_memcmp (protocols[j], &known_protocols[k].guid,
+			     sizeof (known_protocols[k].guid)) == 0)
+		break;
+	  if (k < ARRAY_SIZE (known_protocols))
+	    grub_printf ("  %s\n", known_protocols[k].name);
+	  else
+	    grub_printf ("  %08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x\n",
+			 protocols[j]->data1,
+			 protocols[j]->data2,
+			 protocols[j]->data3,
+			 (unsigned) protocols[j]->data4[0],
+			 (unsigned) protocols[j]->data4[1],
+			 (unsigned) protocols[j]->data4[2],
+			 (unsigned) protocols[j]->data4[3],
+			 (unsigned) protocols[j]->data4[4],
+			 (unsigned) protocols[j]->data4[5],
+			 (unsigned) protocols[j]->data4[6],
+			 (unsigned) protocols[j]->data4[7]);
+	}
+
+    }
+
+  return 0;
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(lsefi)
+{
+  cmd = grub_register_command ("lsefi", grub_cmd_lsefi,
+			       NULL, "Display EFI handles.");
+}
+
+GRUB_MOD_FINI(lsefi)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/efi/lsefimmap.c b/grub-core/commands/efi/lsefimmap.c
new file mode 100644
index 0000000..c85ff7f
--- /dev/null
+++ b/grub-core/commands/efi/lsefimmap.c
@@ -0,0 +1,160 @@
+/* lsefimemmap.c  - Display memory map.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2008  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <grub/types.h>
+#include <grub/mm.h>
+#include <grub/misc.h>
+#include <grub/efi/api.h>
+#include <grub/efi/efi.h>
+#include <grub/command.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+#define ADD_MEMORY_DESCRIPTOR(desc, size)	\
+  ((grub_efi_memory_descriptor_t *) ((char *) (desc) + (size)))
+
+static grub_err_t
+grub_cmd_lsefimmap (grub_command_t cmd __attribute__ ((unused)),
+		    int argc __attribute__ ((unused)),
+		    char **args __attribute__ ((unused)))
+{
+  grub_efi_uintn_t map_size;
+  grub_efi_memory_descriptor_t *memory_map;
+  grub_efi_memory_descriptor_t *memory_map_end;
+  grub_efi_memory_descriptor_t *desc;
+  grub_efi_uintn_t desc_size;
+
+  map_size = 0;
+  if (grub_efi_get_memory_map (&map_size, NULL, NULL, &desc_size, 0) < 0)
+    return 0;
+
+  memory_map = grub_malloc (map_size);
+  if (memory_map == NULL)
+    return grub_errno;
+  if (grub_efi_get_memory_map (&map_size, memory_map, NULL, &desc_size, 0) <= 0)
+    goto fail;
+
+  grub_printf
+    ("Type      Physical start  - end             #Pages   "
+     "     Size Attributes\n");
+  memory_map_end = ADD_MEMORY_DESCRIPTOR (memory_map, map_size);
+  for (desc = memory_map;
+       desc < memory_map_end;
+       desc = ADD_MEMORY_DESCRIPTOR (desc, desc_size))
+    {
+      grub_efi_uint64_t size;
+      grub_efi_uint64_t attr;
+      static const char types_str[][9] = 
+	{
+	  "reserved", 
+	  "ldr-code",
+	  "ldr-data",
+	  "BS-code ",
+	  "BS-data ",
+	  "RT-code ",
+	  "RT-data ",
+	  "conv-mem",
+	  "unusable",
+	  "ACPI-rec",
+	  "ACPI-nvs",
+	  "MMIO    ",
+	  "IO-ports",
+	  "PAL-code",
+	  "persist ",
+	};
+      if (desc->type < ARRAY_SIZE (types_str))
+	grub_printf ("%s ", types_str[desc->type]);
+      else
+	grub_printf ("Unk %02x   ", desc->type);
+      
+      grub_printf (" %016" PRIxGRUB_UINT64_T "-%016" PRIxGRUB_UINT64_T
+		   " %08" PRIxGRUB_UINT64_T,
+		   desc->physical_start,
+		   desc->physical_start + (desc->num_pages << 12) - 1,
+		   desc->num_pages);
+
+      size = desc->num_pages << 12;	/* 4 KiB page size */
+      /*
+       * Since size is a multiple of 4 KiB, no need to handle units
+       * of just Bytes (which would use a mask of 0x3ff).
+       *
+       * 14 characters would support the largest possible number of 4 KiB
+       * pages that are not a multiple of larger units (e.g., MiB):
+       * 17592186044415 (0xffffff_fffff000), but that uses a lot of
+       * whitespace for a rare case.  6 characters usually suffices;
+       * columns will be off if not, but this is preferable to rounding.
+       */
+      if (size & 0xfffff)
+	grub_printf (" %6" PRIuGRUB_UINT64_T "KiB", size >> 10);
+      else if (size & 0x3fffffff)
+	grub_printf (" %6" PRIuGRUB_UINT64_T "MiB", size >> 20);
+      else if (size & 0xffffffffff)
+	grub_printf (" %6" PRIuGRUB_UINT64_T "GiB", size >> 30);
+      else if (size & 0x3ffffffffffff)
+	grub_printf (" %6" PRIuGRUB_UINT64_T "TiB", size >> 40);
+      else if (size & 0xfffffffffffffff)
+	grub_printf (" %6" PRIuGRUB_UINT64_T "PiB", size >> 50);
+      else
+	grub_printf (" %6" PRIuGRUB_UINT64_T "EiB", size >> 60);
+
+      attr = desc->attribute;
+      if (attr & GRUB_EFI_MEMORY_RUNTIME)
+	grub_printf (" RT");
+      if (attr & GRUB_EFI_MEMORY_UC)
+	grub_printf (" UC");
+      if (attr & GRUB_EFI_MEMORY_WC)
+	grub_printf (" WC");
+      if (attr & GRUB_EFI_MEMORY_WT)
+	grub_printf (" WT");
+      if (attr & GRUB_EFI_MEMORY_WB)
+	grub_printf (" WB");
+      if (attr & GRUB_EFI_MEMORY_UCE)
+	grub_printf (" UCE");
+      if (attr & GRUB_EFI_MEMORY_WP)
+	grub_printf (" WP");
+      if (attr & GRUB_EFI_MEMORY_RP)
+	grub_printf (" RP");
+      if (attr & GRUB_EFI_MEMORY_XP)
+	grub_printf (" XP");
+      if (attr & GRUB_EFI_MEMORY_NV)
+	grub_printf (" NV");
+      if (attr & GRUB_EFI_MEMORY_MORE_RELIABLE)
+	grub_printf (" MR");
+      if (attr & GRUB_EFI_MEMORY_RO)
+	grub_printf (" RO");
+
+      grub_printf ("\n");
+    }
+
+ fail:
+  grub_free (memory_map);
+  return 0;
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(lsefimmap)
+{
+  cmd = grub_register_command ("lsefimmap", grub_cmd_lsefimmap,
+			       "", "Display EFI memory map.");
+}
+
+GRUB_MOD_FINI(lsefimmap)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/efi/lsefisystab.c b/grub-core/commands/efi/lsefisystab.c
new file mode 100644
index 0000000..456198e
--- /dev/null
+++ b/grub-core/commands/efi/lsefisystab.c
@@ -0,0 +1,125 @@
+/* lsefisystab.c  - Display EFI systab.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2008  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <grub/types.h>
+#include <grub/mm.h>
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/normal.h>
+#include <grub/charset.h>
+#include <grub/efi/api.h>
+#include <grub/efi/efi.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+struct guid_mapping
+{
+  grub_efi_guid_t guid;
+  const char *name;
+};
+
+static const struct guid_mapping guid_mappings[] =
+  {
+    { GRUB_EFI_ACPI_20_TABLE_GUID, "ACPI-2.0"},
+    { GRUB_EFI_ACPI_TABLE_GUID, "ACPI-1.0"},
+    { GRUB_EFI_CRC32_GUIDED_SECTION_EXTRACTION_GUID,
+      "CRC32 GUIDED SECTION EXTRACTION"},
+    { GRUB_EFI_DEBUG_IMAGE_INFO_TABLE_GUID, "DEBUG IMAGE INFO"},
+    { GRUB_EFI_DEVICE_TREE_GUID, "DEVICE TREE"},
+    { GRUB_EFI_DXE_SERVICES_TABLE_GUID, "DXE SERVICES"},
+    { GRUB_EFI_HCDP_TABLE_GUID, "HCDP"},
+    { GRUB_EFI_HOB_LIST_GUID, "HOB LIST"},
+    { GRUB_EFI_LZMA_CUSTOM_DECOMPRESS_GUID, "LZMA CUSTOM DECOMPRESS"},
+    { GRUB_EFI_MEMORY_TYPE_INFORMATION_GUID, "MEMORY TYPE INFO"},
+    { GRUB_EFI_MPS_TABLE_GUID, "MPS"},
+    { GRUB_EFI_RT_PROPERTIES_TABLE_GUID, "RT PROPERTIES"},
+    { GRUB_EFI_SAL_TABLE_GUID, "SAL"},
+    { GRUB_EFI_SMBIOS_TABLE_GUID, "SMBIOS"},
+    { GRUB_EFI_SMBIOS3_TABLE_GUID, "SMBIOS3"},
+    { GRUB_EFI_SYSTEM_RESOURCE_TABLE_GUID, "SYSTEM RESOURCE TABLE"},
+    { GRUB_EFI_TIANO_CUSTOM_DECOMPRESS_GUID, "TIANO CUSTOM DECOMPRESS"},
+    { GRUB_EFI_TSC_FREQUENCY_GUID, "TSC FREQUENCY"},
+  };
+
+static grub_err_t
+grub_cmd_lsefisystab (struct grub_command *cmd __attribute__ ((unused)),
+		      int argc __attribute__ ((unused)),
+		      char **args __attribute__ ((unused)))
+{
+  const grub_efi_system_table_t *st = grub_efi_system_table;
+  grub_efi_configuration_table_t *t;
+  unsigned int i;
+
+  grub_printf ("Address: %p\n", st);
+  grub_printf ("Signature: %016" PRIxGRUB_UINT64_T " revision: %08x\n",
+	       st->hdr.signature, st->hdr.revision);
+  {
+    char *vendor;
+    grub_uint16_t *vendor_utf16;
+    grub_printf ("Vendor: ");
+    
+    for (vendor_utf16 = st->firmware_vendor; *vendor_utf16; vendor_utf16++);
+    /* Allocate extra 3 bytes to simplify math. */
+    vendor = grub_calloc (4, vendor_utf16 - st->firmware_vendor + 1);
+    if (!vendor)
+      return grub_errno;
+    *grub_utf16_to_utf8 ((grub_uint8_t *) vendor, st->firmware_vendor,
+			 vendor_utf16 - st->firmware_vendor) = 0;
+    grub_printf ("%s", vendor);
+    grub_free (vendor);
+  }
+
+  grub_printf (", Version=%x\n", st->firmware_revision);
+
+  grub_printf ("%lld tables:\n", (long long) st->num_table_entries);
+  t = st->configuration_table;
+  for (i = 0; i < st->num_table_entries; i++)
+    {
+      unsigned int j;
+
+      grub_printf ("%p  ", t->vendor_table);
+
+      grub_printf ("%08x-%04x-%04x-",
+		   t->vendor_guid.data1, t->vendor_guid.data2,
+		   t->vendor_guid.data3);
+      for (j = 0; j < 8; j++)
+	grub_printf ("%02x", t->vendor_guid.data4[j]);
+      
+      for (j = 0; j < ARRAY_SIZE (guid_mappings); j++)
+	if (grub_memcmp (&guid_mappings[j].guid, &t->vendor_guid,
+			 sizeof (grub_efi_guid_t)) == 0)
+	  grub_printf ("   %s", guid_mappings[j].name);
+
+      grub_printf ("\n");
+      t++;
+    }
+  return GRUB_ERR_NONE;
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(lsefisystab)
+{
+  cmd = grub_register_command ("lsefisystab", grub_cmd_lsefisystab, 
+			       "", "Display EFI system tables.");
+}
+
+GRUB_MOD_FINI(lsefisystab)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/efi/lssal.c b/grub-core/commands/efi/lssal.c
new file mode 100644
index 0000000..5084ddd
--- /dev/null
+++ b/grub-core/commands/efi/lssal.c
@@ -0,0 +1,169 @@
+/* lssal.c  - Display EFI SAL systab.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2008  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <grub/types.h>
+#include <grub/mm.h>
+#include <grub/misc.h>
+#include <grub/normal.h>
+#include <grub/charset.h>
+#include <grub/efi/api.h>
+#include <grub/efi/efi.h>
+#include <grub/dl.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static void
+disp_sal (void *table)
+{
+  struct grub_efi_sal_system_table *t = table;
+  void *desc;
+  grub_uint32_t len, l, i;
+
+  grub_printf ("SAL rev: %02x, signature: %x, len:%x\n",
+	       t->sal_rev, t->signature, t->total_table_len);
+  grub_printf ("nbr entry: %d, chksum: %02x, SAL version A: %02x B: %02x\n",
+	       t->entry_count, t->checksum,
+	       t->sal_a_version, t->sal_b_version);
+  grub_printf ("OEM-ID: %-32s\n", t->oem_id);
+  grub_printf ("Product-ID: %-32s\n", t->product_id);
+
+  desc = t->entries;
+  len = t->total_table_len - sizeof (struct grub_efi_sal_system_table);
+  if (t->total_table_len <= sizeof (struct grub_efi_sal_system_table))
+    return;
+  for (i = 0; i < t->entry_count; i++)
+    {
+      switch (*(grub_uint8_t *) desc)
+	{
+	case GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_ENTRYPOINT_DESCRIPTOR:
+	  {
+	    struct grub_efi_sal_system_table_entrypoint_descriptor *c = desc;
+	    l = sizeof (*c);
+	    grub_printf (" Entry point: PAL=%016" PRIxGRUB_UINT64_T
+			 " SAL=%016" PRIxGRUB_UINT64_T " GP=%016"
+			 PRIxGRUB_UINT64_T "\n",
+			 c->pal_proc_addr, c->sal_proc_addr,
+			 c->global_data_ptr);
+	  }
+	  break;
+	case GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_MEMORY_DESCRIPTOR:
+	  {
+	    struct grub_efi_sal_system_table_memory_descriptor *c = desc;
+	    l = sizeof (*c);
+	    grub_printf (" Memory descriptor entry addr=%016" PRIxGRUB_UINT64_T
+			 " len=%" PRIuGRUB_UINT64_T "KB\n",
+			 c->addr, c->len * 4);
+	    grub_printf ("     sal_used=%d attr=%x AR=%x attr_mask=%x "
+			 "type=%x usage=%x\n",
+			 c->sal_used, c->attr, c->ar, c->attr_mask, c->mem_type,
+			 c->usage);
+	  }
+	  break;
+	case GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_PLATFORM_FEATURES:
+	  {
+	    struct grub_efi_sal_system_table_platform_features *c = desc;
+	    l = sizeof (*c);
+	    grub_printf (" Platform features: %02x", c->flags);
+	    if (c->flags & GRUB_EFI_SAL_SYSTEM_TABLE_PLATFORM_FEATURE_BUSLOCK)
+	      grub_printf (" BusLock");
+	    if (c->flags & GRUB_EFI_SAL_SYSTEM_TABLE_PLATFORM_FEATURE_IRQREDIRECT)
+	      grub_printf (" IrqRedirect");
+	    if (c->flags & GRUB_EFI_SAL_SYSTEM_TABLE_PLATFORM_FEATURE_IPIREDIRECT)
+
+	      grub_printf (" IPIRedirect");
+	    if (c->flags & GRUB_EFI_SAL_SYSTEM_TABLE_PLATFORM_FEATURE_ITCDRIFT)
+
+	      grub_printf (" ITCDrift");
+	    grub_printf ("\n");
+	  }
+	  break;
+	case GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_TRANSLATION_REGISTER_DESCRIPTOR:
+	  {
+	    struct grub_efi_sal_system_table_translation_register_descriptor *c
+	      = desc;
+	    l = sizeof (*c);
+	    grub_printf (" TR type=%d num=%d va=%016" PRIxGRUB_UINT64_T
+			 " pte=%016" PRIxGRUB_UINT64_T "\n",
+			 c->register_type, c->register_number,
+			 c->addr, c->page_size);
+	  }
+	  break;
+	case GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_PURGE_TRANSLATION_COHERENCE:
+	  {
+	    struct grub_efi_sal_system_table_purge_translation_coherence *c
+	      = desc;
+	    l = sizeof (*c);
+	    grub_printf (" PTC coherence nbr=%d addr=%016" PRIxGRUB_UINT64_T "\n",
+			 c->ndomains, c->coherence);
+	  }
+	  break;
+	case GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_AP_WAKEUP:
+	  {
+	    struct grub_efi_sal_system_table_ap_wakeup *c = desc;
+	    l = sizeof (*c);
+	    grub_printf (" AP wake-up: mec=%d vect=%" PRIxGRUB_UINT64_T "\n",
+			 c->mechanism, c->vector);
+	  }
+	  break;
+	default:
+	  grub_printf (" unknown entry 0x%x\n", *(grub_uint8_t *)desc);
+	  return;
+	}
+      desc = (grub_uint8_t *)desc + l;
+      if (len <= l)
+	return;
+      len -= l;
+    }
+}
+
+static grub_err_t
+grub_cmd_lssal (struct grub_command *cmd __attribute__ ((unused)),
+		int argc __attribute__ ((unused)),
+		char **args __attribute__ ((unused)))
+{
+  const grub_efi_system_table_t *st = grub_efi_system_table;
+  grub_efi_configuration_table_t *t = st->configuration_table;
+  unsigned int i;
+  grub_efi_packed_guid_t guid = GRUB_EFI_SAL_TABLE_GUID;
+
+  for (i = 0; i < st->num_table_entries; i++)
+    {
+      if (grub_memcmp (&guid, &t->vendor_guid,
+		       sizeof (grub_efi_packed_guid_t)) == 0)
+	{
+	  disp_sal (t->vendor_table);
+	  return GRUB_ERR_NONE;
+	}
+      t++;
+    }
+  grub_printf ("SAL not found\n");
+  return GRUB_ERR_NONE;
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(lssal)
+{
+  cmd = grub_register_command ("lssal", grub_cmd_lssal, "",
+			       "Display SAL system table.");
+}
+
+GRUB_MOD_FINI(lssal)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/efi/smbios.c b/grub-core/commands/efi/smbios.c
new file mode 100644
index 0000000..75202d5
--- /dev/null
+++ b/grub-core/commands/efi/smbios.c
@@ -0,0 +1,61 @@
+/* smbios.c - get smbios tables. */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2019  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/smbios.h>
+#include <grub/misc.h>
+#include <grub/efi/efi.h>
+#include <grub/efi/api.h>
+
+struct grub_smbios_eps *
+grub_machine_smbios_get_eps (void)
+{
+  unsigned i;
+  static grub_efi_packed_guid_t smbios_guid = GRUB_EFI_SMBIOS_TABLE_GUID;
+
+  for (i = 0; i < grub_efi_system_table->num_table_entries; i++)
+    {
+      grub_efi_packed_guid_t *guid =
+	&grub_efi_system_table->configuration_table[i].vendor_guid;
+
+      if (! grub_memcmp (guid, &smbios_guid, sizeof (grub_efi_packed_guid_t)))
+	return (struct grub_smbios_eps *)
+	  grub_efi_system_table->configuration_table[i].vendor_table;
+    }
+
+  return 0;
+}
+
+struct grub_smbios_eps3 *
+grub_machine_smbios_get_eps3 (void)
+{
+  unsigned i;
+  static grub_efi_packed_guid_t smbios3_guid = GRUB_EFI_SMBIOS3_TABLE_GUID;
+
+  for (i = 0; i < grub_efi_system_table->num_table_entries; i++)
+    {
+      grub_efi_packed_guid_t *guid =
+	&grub_efi_system_table->configuration_table[i].vendor_guid;
+
+      if (! grub_memcmp (guid, &smbios3_guid, sizeof (grub_efi_packed_guid_t)))
+	return (struct grub_smbios_eps3 *)
+	  grub_efi_system_table->configuration_table[i].vendor_table;
+    }
+
+  return 0;
+}
diff --git a/grub-core/commands/efi/tpm.c b/grub-core/commands/efi/tpm.c
new file mode 100644
index 0000000..a97d853
--- /dev/null
+++ b/grub-core/commands/efi/tpm.c
@@ -0,0 +1,241 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2018  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *  EFI TPM support code.
+ */
+
+#include <grub/err.h>
+#include <grub/i18n.h>
+#include <grub/efi/api.h>
+#include <grub/efi/efi.h>
+#include <grub/efi/tpm.h>
+#include <grub/mm.h>
+#include <grub/tpm.h>
+#include <grub/term.h>
+
+typedef TCG_PCR_EVENT grub_tpm_event_t;
+
+static grub_efi_guid_t tpm_guid = EFI_TPM_GUID;
+static grub_efi_guid_t tpm2_guid = EFI_TPM2_GUID;
+
+static grub_efi_handle_t *grub_tpm_handle;
+static grub_uint8_t grub_tpm_version;
+
+static grub_int8_t tpm1_present = -1;
+static grub_int8_t tpm2_present = -1;
+
+static grub_efi_boolean_t
+grub_tpm1_present (grub_efi_tpm_protocol_t *tpm)
+{
+  grub_efi_status_t status;
+  TCG_EFI_BOOT_SERVICE_CAPABILITY caps;
+  grub_uint32_t flags;
+  grub_efi_physical_address_t eventlog, lastevent;
+
+  if (tpm1_present != -1)
+    return (grub_efi_boolean_t) tpm1_present;
+
+  caps.Size = (grub_uint8_t) sizeof (caps);
+
+  status = efi_call_5 (tpm->status_check, tpm, &caps, &flags, &eventlog,
+		       &lastevent);
+
+  if (status != GRUB_EFI_SUCCESS || caps.TPMDeactivatedFlag
+      || !caps.TPMPresentFlag)
+    tpm1_present = 0;
+  else
+    tpm1_present = 1;
+
+  grub_dprintf ("tpm", "tpm1%s present\n", tpm1_present ? "" : " NOT");
+
+  return (grub_efi_boolean_t) tpm1_present;
+}
+
+static grub_efi_boolean_t
+grub_tpm2_present (grub_efi_tpm2_protocol_t *tpm)
+{
+  grub_efi_status_t status;
+  EFI_TCG2_BOOT_SERVICE_CAPABILITY caps;
+
+  caps.Size = (grub_uint8_t) sizeof (caps);
+
+  if (tpm2_present != -1)
+    return (grub_efi_boolean_t) tpm2_present;
+
+  status = efi_call_2 (tpm->get_capability, tpm, &caps);
+
+  if (status != GRUB_EFI_SUCCESS || !caps.TPMPresentFlag)
+    tpm2_present = 0;
+  else
+    tpm2_present = 1;
+
+  grub_dprintf ("tpm", "tpm2%s present\n", tpm2_present ? "" : " NOT");
+
+  return (grub_efi_boolean_t) tpm2_present;
+}
+
+static grub_efi_boolean_t
+grub_tpm_handle_find (grub_efi_handle_t *tpm_handle,
+		      grub_efi_uint8_t *protocol_version)
+{
+  grub_efi_handle_t *handles;
+  grub_efi_uintn_t num_handles;
+
+  if (grub_tpm_handle != NULL)
+    {
+      *tpm_handle = grub_tpm_handle;
+      *protocol_version = grub_tpm_version;
+      return 1;
+    }
+
+  handles = grub_efi_locate_handle (GRUB_EFI_BY_PROTOCOL, &tpm_guid, NULL,
+				    &num_handles);
+  if (handles && num_handles > 0)
+    {
+      grub_tpm_handle = handles[0];
+      *tpm_handle = handles[0];
+      grub_tpm_version = 1;
+      *protocol_version = 1;
+      grub_dprintf ("tpm", "TPM handle Found, version: 1\n");
+      return 1;
+    }
+
+  handles = grub_efi_locate_handle (GRUB_EFI_BY_PROTOCOL, &tpm2_guid, NULL,
+				    &num_handles);
+  if (handles && num_handles > 0)
+    {
+      grub_tpm_handle = handles[0];
+      *tpm_handle = handles[0];
+      grub_tpm_version = 2;
+      *protocol_version = 2;
+      grub_dprintf ("tpm", "TPM handle Found, version: 2\n");
+      return 1;
+    }
+
+  return 0;
+}
+
+static grub_err_t
+grub_efi_log_event_status (grub_efi_status_t status)
+{
+  switch (status)
+    {
+    case GRUB_EFI_SUCCESS:
+      return 0;
+    case GRUB_EFI_DEVICE_ERROR:
+      return grub_error (GRUB_ERR_IO, N_("Command failed"));
+    case GRUB_EFI_INVALID_PARAMETER:
+      return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("Invalid parameter"));
+    case GRUB_EFI_BUFFER_TOO_SMALL:
+      return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("Output buffer too small"));
+    case GRUB_EFI_NOT_FOUND:
+      return grub_error (GRUB_ERR_UNKNOWN_DEVICE, N_("TPM unavailable"));
+    default:
+      return grub_error (GRUB_ERR_UNKNOWN_DEVICE, N_("Unknown TPM error"));
+    }
+}
+
+static grub_err_t
+grub_tpm1_log_event (grub_efi_handle_t tpm_handle, unsigned char *buf,
+		     grub_size_t size, grub_uint8_t pcr,
+		     const char *description)
+{
+  grub_tpm_event_t *event;
+  grub_efi_status_t status;
+  grub_efi_tpm_protocol_t *tpm;
+  grub_efi_physical_address_t lastevent;
+  grub_uint32_t algorithm;
+  grub_uint32_t eventnum = 0;
+
+  tpm = grub_efi_open_protocol (tpm_handle, &tpm_guid,
+				GRUB_EFI_OPEN_PROTOCOL_GET_PROTOCOL);
+
+  if (!grub_tpm1_present (tpm))
+    return 0;
+
+  event = grub_zalloc (sizeof (*event) + grub_strlen (description) + 1);
+  if (!event)
+    return grub_error (GRUB_ERR_OUT_OF_MEMORY,
+		       N_("cannot allocate TPM event buffer"));
+
+  event->PCRIndex = pcr;
+  event->EventType = EV_IPL;
+  event->EventSize = grub_strlen (description) + 1;
+  grub_memcpy (event->Event, description, event->EventSize);
+
+  algorithm = TCG_ALG_SHA;
+  status = efi_call_7 (tpm->log_extend_event, tpm, (grub_addr_t) buf, (grub_uint64_t) size,
+		       algorithm, event, &eventnum, &lastevent);
+  grub_free (event);
+
+  return grub_efi_log_event_status (status);
+}
+
+static grub_err_t
+grub_tpm2_log_event (grub_efi_handle_t tpm_handle, unsigned char *buf,
+		     grub_size_t size, grub_uint8_t pcr,
+		     const char *description)
+{
+  EFI_TCG2_EVENT *event;
+  grub_efi_status_t status;
+  grub_efi_tpm2_protocol_t *tpm;
+
+  tpm = grub_efi_open_protocol (tpm_handle, &tpm2_guid,
+				GRUB_EFI_OPEN_PROTOCOL_GET_PROTOCOL);
+
+  if (!grub_tpm2_present (tpm))
+    return 0;
+
+  event =
+    grub_zalloc (sizeof (EFI_TCG2_EVENT) + grub_strlen (description) + 1);
+  if (!event)
+    return grub_error (GRUB_ERR_OUT_OF_MEMORY,
+		       N_("cannot allocate TPM event buffer"));
+
+  event->Header.HeaderSize = sizeof (EFI_TCG2_EVENT_HEADER);
+  event->Header.HeaderVersion = 1;
+  event->Header.PCRIndex = pcr;
+  event->Header.EventType = EV_IPL;
+  event->Size =
+    sizeof (*event) - sizeof (event->Event) + grub_strlen (description) + 1;
+  grub_memcpy (event->Event, description, grub_strlen (description) + 1);
+
+  status = efi_call_5 (tpm->hash_log_extend_event, tpm, 0, (grub_addr_t) buf,
+		       (grub_uint64_t) size, event);
+  grub_free (event);
+
+  return grub_efi_log_event_status (status);
+}
+
+grub_err_t
+grub_tpm_measure (unsigned char *buf, grub_size_t size, grub_uint8_t pcr,
+		    const char *description)
+{
+  grub_efi_handle_t tpm_handle;
+  grub_efi_uint8_t protocol_version;
+
+  if (!grub_tpm_handle_find (&tpm_handle, &protocol_version))
+    return 0;
+
+  grub_dprintf ("tpm", "log_event, pcr = %d, size = 0x%" PRIxGRUB_SIZE ", %s\n",
+                pcr, size, description);
+
+  if (protocol_version == 1)
+    return grub_tpm1_log_event (tpm_handle, buf, size, pcr, description);
+  else
+    return grub_tpm2_log_event (tpm_handle, buf, size, pcr, description);
+}
diff --git a/grub-core/commands/eval.c b/grub-core/commands/eval.c
new file mode 100644
index 0000000..f826a4f
--- /dev/null
+++ b/grub-core/commands/eval.c
@@ -0,0 +1,71 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/script_sh.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+#include <grub/term.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_err_t
+grub_cmd_eval (grub_command_t cmd __attribute__((__unused__)),
+	       int argc, char *argv[])
+{
+  int i;
+  grub_size_t size = argc; /* +1 for final zero */
+  char *str, *p;
+  grub_err_t ret;
+
+  if (argc == 0)
+    return GRUB_ERR_NONE;
+
+  for (i = 0; i < argc; i++)
+    size += grub_strlen (argv[i]);
+
+  str = p = grub_malloc (size);
+  if (!str)
+    return grub_errno;
+
+  for (i = 0; i < argc; i++)
+    {
+      p = grub_stpcpy (p, argv[i]);
+      *p++ = ' ';
+    }
+  *--p = '\0';
+
+  ret = grub_script_execute_sourcecode (str);
+  grub_free (str);
+  return ret;
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(eval)
+{
+  cmd = grub_register_command ("eval", grub_cmd_eval, N_("STRING ..."),
+				N_("Evaluate arguments as GRUB commands"));
+}
+
+GRUB_MOD_FINI(eval)
+{
+  grub_unregister_command (cmd);
+}
+
diff --git a/grub-core/commands/extcmd.c b/grub-core/commands/extcmd.c
new file mode 100644
index 0000000..90a5ca2
--- /dev/null
+++ b/grub-core/commands/extcmd.c
@@ -0,0 +1,141 @@
+/* extcmd.c - support extended command */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/mm.h>
+#include <grub/list.h>
+#include <grub/lockdown.h>
+#include <grub/misc.h>
+#include <grub/extcmd.h>
+#include <grub/script_sh.h>
+#include <grub/dl.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+grub_err_t
+grub_extcmd_dispatcher (struct grub_command *cmd, int argc, char **args,
+			struct grub_script *script)
+{
+  int new_argc;
+  char **new_args;
+  struct grub_arg_list *state;
+  struct grub_extcmd_context context;
+  grub_err_t ret;
+  grub_extcmd_t ext = cmd->data;
+
+  context.state = 0;
+  context.extcmd = ext;
+  context.script = script;
+
+  if (! ext->options)
+    {
+      ret = (ext->func) (&context, argc, args);
+      return ret;
+    }
+
+  state = grub_arg_list_alloc (ext, argc, args);
+  if (grub_arg_parse (ext, argc, args, state, &new_args, &new_argc))
+    {
+      context.state = state;
+      ret = (ext->func) (&context, new_argc, new_args);
+      grub_free (new_args);
+      grub_free (state);
+      return ret;
+    }
+
+  grub_free (state);
+  return grub_errno;
+}
+
+static grub_err_t
+grub_extcmd_dispatch (struct grub_command *cmd, int argc, char **args)
+{
+  return grub_extcmd_dispatcher (cmd, argc, args, 0);
+}
+
+grub_extcmd_t
+grub_register_extcmd_prio (const char *name, grub_extcmd_func_t func,
+			   grub_command_flags_t flags, const char *summary,
+			   const char *description,
+			   const struct grub_arg_option *parser,
+			   int prio)
+{
+  grub_extcmd_t ext;
+  grub_command_t cmd;
+
+  ext = (grub_extcmd_t) grub_malloc (sizeof (*ext));
+  if (! ext)
+    return 0;
+
+  cmd = grub_register_command_prio (name, grub_extcmd_dispatch,
+				    summary, description, prio);
+  if (! cmd)
+    {
+      grub_free (ext);
+      return 0;
+    }
+
+  cmd->flags = (flags | GRUB_COMMAND_FLAG_EXTCMD);
+  cmd->data = ext;
+
+  ext->cmd = cmd;
+  ext->func = func;
+  ext->options = parser;
+  ext->data = 0;
+
+  return ext;
+}
+
+grub_extcmd_t
+grub_register_extcmd (const char *name, grub_extcmd_func_t func,
+		      grub_command_flags_t flags, const char *summary,
+		      const char *description,
+		      const struct grub_arg_option *parser)
+{
+  return grub_register_extcmd_prio (name, func, flags,
+				    summary, description, parser, 1);
+}
+
+static grub_err_t
+grub_extcmd_lockdown (grub_extcmd_context_t ctxt __attribute__ ((unused)),
+                      int argc __attribute__ ((unused)),
+                      char **argv __attribute__ ((unused)))
+{
+  return grub_error (GRUB_ERR_ACCESS_DENIED,
+                     N_("%s: the command is not allowed when lockdown is enforced"),
+                     ctxt->extcmd->cmd->name);
+}
+
+grub_extcmd_t
+grub_register_extcmd_lockdown (const char *name, grub_extcmd_func_t func,
+                               grub_command_flags_t flags, const char *summary,
+                               const char *description,
+                               const struct grub_arg_option *parser)
+{
+  if (grub_is_lockdown () == GRUB_LOCKDOWN_ENABLED)
+    func = grub_extcmd_lockdown;
+
+  return grub_register_extcmd (name, func, flags, summary, description, parser);
+}
+
+void
+grub_unregister_extcmd (grub_extcmd_t ext)
+{
+  grub_unregister_command (ext->cmd);
+  grub_free (ext);
+}
diff --git a/grub-core/commands/file.c b/grub-core/commands/file.c
new file mode 100644
index 0000000..9de0006
--- /dev/null
+++ b/grub-core/commands/file.c
@@ -0,0 +1,694 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2013  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/env.h>
+#include <grub/command.h>
+#include <grub/extcmd.h>
+#include <grub/i18n.h>
+#include <grub/file.h>
+#include <grub/elf.h>
+#include <grub/xen_file.h>
+#include <grub/efi/pe32.h>
+#include <grub/arm/linux.h>
+#include <grub/arm64/linux.h>
+#include <grub/i386/linux.h>
+#include <grub/xnu.h>
+#include <grub/machoload.h>
+#include <grub/fileid.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const struct grub_arg_option options[] = {
+  {"is-i386-xen-pae-domu", 0, 0,
+   N_("Check if FILE can be booted as i386 PAE Xen unprivileged guest kernel"),
+   0, 0},
+  {"is-x86_64-xen-domu", 0, 0,
+   N_("Check if FILE can be booted as x86_64 Xen unprivileged guest kernel"), 0, 0},
+  {"is-x86-xen-dom0", 0, 0,
+   N_("Check if FILE can be used as Xen x86 privileged guest kernel"), 0, 0},
+  {"is-x86-multiboot", 0, 0,
+   N_("Check if FILE can be used as x86 multiboot kernel"), 0, 0},
+  {"is-x86-multiboot2", 0, 0,
+   N_("Check if FILE can be used as x86 multiboot2 kernel"), 0, 0},
+  {"is-arm-linux", 0, 0,
+   N_("Check if FILE is ARM Linux"), 0, 0},
+  {"is-arm64-linux", 0, 0,
+   N_("Check if FILE is ARM64 Linux"), 0, 0},
+  {"is-ia64-linux", 0, 0,
+   N_("Check if FILE is IA64 Linux"), 0, 0},
+  {"is-mips-linux", 0, 0,
+   N_("Check if FILE is MIPS Linux"), 0, 0},
+  {"is-mipsel-linux", 0, 0,
+   N_("Check if FILE is MIPSEL Linux"), 0, 0},
+  {"is-sparc64-linux", 0, 0,
+   N_("Check if FILE is SPARC64 Linux"), 0, 0},
+  {"is-powerpc-linux", 0, 0,
+   N_("Check if FILE is POWERPC Linux"), 0, 0},
+  {"is-x86-linux", 0, 0,
+   N_("Check if FILE is x86 Linux"), 0, 0},
+  {"is-x86-linux32", 0, 0,
+   N_("Check if FILE is x86 Linux supporting 32-bit protocol"), 0, 0},
+  {"is-x86-kfreebsd", 0, 0,
+   N_("Check if FILE is x86 kFreeBSD"), 0, 0},
+  {"is-i386-kfreebsd", 0, 0,
+   N_("Check if FILE is i386 kFreeBSD"), 0, 0},
+  {"is-x86_64-kfreebsd", 0, 0,
+   N_("Check if FILE is x86_64 kFreeBSD"), 0, 0},
+
+  {"is-x86-knetbsd", 0, 0,
+   N_("Check if FILE is x86 kNetBSD"), 0, 0},
+  {"is-i386-knetbsd", 0, 0,
+   N_("Check if FILE is i386 kNetBSD"), 0, 0},
+  {"is-x86_64-knetbsd", 0, 0,
+   N_("Check if FILE is x86_64 kNetBSD"), 0, 0},
+
+  {"is-i386-efi", 0, 0,
+   N_("Check if FILE is i386 EFI file"), 0, 0},
+  {"is-x86_64-efi", 0, 0,
+   N_("Check if FILE is x86_64 EFI file"), 0, 0},
+  {"is-ia64-efi", 0, 0,
+   N_("Check if FILE is IA64 EFI file"), 0, 0},
+  {"is-arm64-efi", 0, 0,
+   N_("Check if FILE is ARM64 EFI file"), 0, 0},
+  {"is-arm-efi", 0, 0,
+   N_("Check if FILE is ARM EFI file"), 0, 0},
+  {"is-riscv32-efi", 0, 0,
+   N_("Check if FILE is RISC-V 32bit EFI file"), 0, 0},
+  {"is-riscv64-efi", 0, 0,
+   N_("Check if FILE is RISC-V 64bit EFI file"), 0, 0},
+  {"is-hibernated-hiberfil", 0, 0,
+   N_("Check if FILE is hiberfil.sys in hibernated state"), 0, 0},
+  {"is-x86_64-xnu", 0, 0,
+   N_("Check if FILE is x86_64 XNU (Mac OS X kernel)"), 0, 0},
+  {"is-i386-xnu", 0, 0,
+   N_("Check if FILE is i386 XNU (Mac OS X kernel)"), 0, 0},
+  {"is-xnu-hibr", 0, 0,
+   N_("Check if FILE is XNU (Mac OS X kernel) hibernated image"), 0, 0},
+  {"is-x86-bios-bootsector", 0, 0,
+   N_("Check if FILE is BIOS bootsector"), 0, 0},
+  {0, 0, 0, 0, 0, 0}
+};
+
+enum
+{
+  IS_PAE_DOMU,
+  IS_64_DOMU,
+  IS_DOM0,
+  IS_MULTIBOOT,
+  IS_MULTIBOOT2,
+  IS_ARM_LINUX,
+  IS_ARM64_LINUX,
+  IS_IA64_LINUX,
+  IS_MIPS_LINUX,
+  IS_MIPSEL_LINUX,
+  IS_SPARC64_LINUX,
+  IS_POWERPC_LINUX,
+  IS_X86_LINUX,
+  IS_X86_LINUX32,
+  IS_X86_KFREEBSD,
+  IS_X86_KFREEBSD32,
+  IS_X86_KFREEBSD64,
+  IS_X86_KNETBSD,
+  IS_X86_KNETBSD32,
+  IS_X86_KNETBSD64,
+  IS_32_EFI,
+  IS_64_EFI,
+  IS_IA_EFI,
+  IS_ARM64_EFI,
+  IS_ARM_EFI,
+  IS_RISCV32_EFI,
+  IS_RISCV64_EFI,
+  IS_HIBERNATED,
+  IS_XNU64,
+  IS_XNU32,
+  IS_XNU_HIBR,
+  IS_BIOS_BOOTSECTOR,
+  OPT_TYPE_MIN = IS_PAE_DOMU,
+  OPT_TYPE_MAX = IS_BIOS_BOOTSECTOR
+};
+
+
+static grub_err_t
+grub_cmd_file (grub_extcmd_context_t ctxt, int argc, char **args)
+{
+  grub_file_t file = 0;
+  grub_elf_t elf = 0;
+  grub_err_t err;
+  int type = -1, i;
+  int ret = 0;
+  grub_macho_t macho = 0;
+
+  if (argc == 0)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+  for (i = OPT_TYPE_MIN; i <= OPT_TYPE_MAX; i++)
+    if (ctxt->state[i].set)
+      {
+	if (type == -1)
+	  {
+	    type = i;
+	    continue;
+	  }
+	return grub_error (GRUB_ERR_BAD_ARGUMENT, "multiple types specified");
+      }
+  if (type == -1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "no type specified");
+
+  file = grub_file_open (args[0], GRUB_FILE_TYPE_XNU_KERNEL);
+  if (!file)
+    return grub_errno;
+  switch (type)
+    {
+    case IS_BIOS_BOOTSECTOR:
+      {
+	grub_uint16_t sig;
+	if (grub_file_size (file) != 512)
+	  break;
+	if (grub_file_seek (file, 510) == (grub_size_t) -1)
+	  break;
+	if (grub_file_read (file, &sig, 2) != 2)
+	  break;
+	if (sig != grub_cpu_to_le16_compile_time (0xaa55))
+	  break;
+	ret = 1;
+	break;
+      }
+    case IS_IA64_LINUX:
+      {
+	Elf64_Ehdr ehdr;
+
+	if (grub_file_read (file, &ehdr, sizeof (ehdr)) != sizeof (ehdr))
+	  break;
+
+	if (ehdr.e_ident[EI_MAG0] != ELFMAG0
+	    || ehdr.e_ident[EI_MAG1] != ELFMAG1
+	    || ehdr.e_ident[EI_MAG2] != ELFMAG2
+	    || ehdr.e_ident[EI_MAG3] != ELFMAG3
+	    || ehdr.e_ident[EI_VERSION] != EV_CURRENT
+	    || ehdr.e_version != EV_CURRENT)
+	  break;
+
+	if (ehdr.e_ident[EI_CLASS] != ELFCLASS64
+	    || ehdr.e_ident[EI_DATA] != ELFDATA2LSB
+	    || ehdr.e_machine != grub_cpu_to_le16_compile_time (EM_IA_64))
+	  break;
+
+	ret = 1;
+
+	break;
+      }
+
+    case IS_SPARC64_LINUX:
+      {
+	Elf64_Ehdr ehdr;
+
+	if (grub_file_read (file, &ehdr, sizeof (ehdr)) != sizeof (ehdr))
+	  break;
+
+	if (ehdr.e_ident[EI_MAG0] != ELFMAG0
+	    || ehdr.e_ident[EI_MAG1] != ELFMAG1
+	    || ehdr.e_ident[EI_MAG2] != ELFMAG2
+	    || ehdr.e_ident[EI_MAG3] != ELFMAG3
+	    || ehdr.e_ident[EI_VERSION] != EV_CURRENT
+	    || ehdr.e_version != EV_CURRENT)
+	  break;
+
+	if (ehdr.e_ident[EI_CLASS] != ELFCLASS64
+	    || ehdr.e_ident[EI_DATA] != ELFDATA2MSB)
+	  break;
+
+	if (ehdr.e_machine != grub_cpu_to_le16_compile_time (EM_SPARCV9)
+	    || ehdr.e_type != grub_cpu_to_be16_compile_time (ET_EXEC))
+	  break;
+
+	ret = 1;
+
+	break;
+      }
+
+    case IS_POWERPC_LINUX:
+      {
+	Elf32_Ehdr ehdr;
+
+	if (grub_file_read (file, &ehdr, sizeof (ehdr)) != sizeof (ehdr))
+	  break;
+
+	if (ehdr.e_ident[EI_MAG0] != ELFMAG0
+	    || ehdr.e_ident[EI_MAG1] != ELFMAG1
+	    || ehdr.e_ident[EI_MAG2] != ELFMAG2
+	    || ehdr.e_ident[EI_MAG3] != ELFMAG3
+	    || ehdr.e_ident[EI_VERSION] != EV_CURRENT
+	    || ehdr.e_version != EV_CURRENT)
+	  break;
+
+	if (ehdr.e_ident[EI_DATA] != ELFDATA2MSB
+	    || (ehdr.e_machine != grub_cpu_to_le16_compile_time (EM_PPC)
+		&& ehdr.e_machine !=
+		grub_cpu_to_le16_compile_time (EM_PPC64)))
+	  break;
+
+	if (ehdr.e_type != grub_cpu_to_be16_compile_time (ET_EXEC)
+	    && ehdr.e_type != grub_cpu_to_be16_compile_time (ET_DYN))
+	  break;
+
+	ret = 1;
+
+	break;
+      }
+
+    case IS_MIPS_LINUX:
+      {
+	Elf32_Ehdr ehdr;
+
+	if (grub_file_read (file, &ehdr, sizeof (ehdr)) != sizeof (ehdr))
+	  break;
+
+	if (ehdr.e_ident[EI_MAG0] != ELFMAG0
+	    || ehdr.e_ident[EI_MAG1] != ELFMAG1
+	    || ehdr.e_ident[EI_MAG2] != ELFMAG2
+	    || ehdr.e_ident[EI_MAG3] != ELFMAG3
+	    || ehdr.e_ident[EI_VERSION] != EV_CURRENT
+	    || ehdr.e_version != EV_CURRENT)
+	  break;
+
+	if (ehdr.e_ident[EI_DATA] != ELFDATA2MSB
+	    || ehdr.e_machine != grub_cpu_to_be16_compile_time (EM_MIPS)
+	    || ehdr.e_type != grub_cpu_to_be16_compile_time (ET_EXEC))
+	  break;
+
+	ret = 1;
+
+	break;
+      }
+
+    case IS_X86_KNETBSD:
+    case IS_X86_KNETBSD32:
+    case IS_X86_KNETBSD64:
+      {
+	int is32, is64;
+
+	elf = grub_elf_file (file, file->name);
+
+	if (elf->ehdr.ehdr32.e_type != grub_cpu_to_le16_compile_time (ET_EXEC)
+	    || elf->ehdr.ehdr32.e_ident[EI_DATA] != ELFDATA2LSB)
+	  break;
+
+	is32 = grub_elf_is_elf32 (elf);
+	is64 = grub_elf_is_elf64 (elf);
+	if (!is32 && !is64)
+	  break;
+	if (!is32 && type == IS_X86_KNETBSD32)
+	  break;
+	if (!is64 && type == IS_X86_KNETBSD64)
+	  break;
+	if (is64)
+	  ret = grub_file_check_netbsd64 (elf);
+	if (is32)
+	  ret = grub_file_check_netbsd32 (elf);
+	break;
+      }
+
+    case IS_X86_KFREEBSD:
+    case IS_X86_KFREEBSD32:
+    case IS_X86_KFREEBSD64:
+      {
+	Elf32_Ehdr ehdr;
+	int is32, is64;
+
+	if (grub_file_read (file, &ehdr, sizeof (ehdr)) != sizeof (ehdr))
+	  break;
+
+	if (ehdr.e_ident[EI_MAG0] != ELFMAG0
+	    || ehdr.e_ident[EI_MAG1] != ELFMAG1
+	    || ehdr.e_ident[EI_MAG2] != ELFMAG2
+	    || ehdr.e_ident[EI_MAG3] != ELFMAG3
+	    || ehdr.e_ident[EI_VERSION] != EV_CURRENT
+	    || ehdr.e_version != EV_CURRENT)
+	  break;
+
+	if (ehdr.e_type != grub_cpu_to_le16_compile_time (ET_EXEC)
+	    || ehdr.e_ident[EI_DATA] != ELFDATA2LSB)
+	  break;
+
+	if (ehdr.e_ident[EI_OSABI] != ELFOSABI_FREEBSD)
+	  break;
+
+	is32 = (ehdr.e_machine == grub_cpu_to_le16_compile_time (EM_386)
+		&& ehdr.e_ident[EI_CLASS] == ELFCLASS32);
+	is64 = (ehdr.e_machine == grub_cpu_to_le16_compile_time (EM_X86_64)
+		&& ehdr.e_ident[EI_CLASS] == ELFCLASS64);
+	if (!is32 && !is64)
+	  break;
+	if (!is32 && (type == IS_X86_KFREEBSD32 || type == IS_X86_KNETBSD32))
+	  break;
+	if (!is64 && (type == IS_X86_KFREEBSD64 || type == IS_X86_KNETBSD64))
+	  break;
+	ret = 1;
+
+	break;
+      }
+
+
+    case IS_MIPSEL_LINUX:
+      {
+	Elf32_Ehdr ehdr;
+
+	if (grub_file_read (file, &ehdr, sizeof (ehdr)) != sizeof (ehdr))
+	  break;
+
+	if (ehdr.e_ident[EI_MAG0] != ELFMAG0
+	    || ehdr.e_ident[EI_MAG1] != ELFMAG1
+	    || ehdr.e_ident[EI_MAG2] != ELFMAG2
+	    || ehdr.e_ident[EI_MAG3] != ELFMAG3
+	    || ehdr.e_ident[EI_VERSION] != EV_CURRENT
+	    || ehdr.e_version != EV_CURRENT)
+	  break;
+
+	if (ehdr.e_machine != grub_cpu_to_le16_compile_time (EM_MIPS)
+	    || ehdr.e_type != grub_cpu_to_le16_compile_time (ET_EXEC))
+	  break;
+
+	ret = 1;
+
+	break;
+      }
+    case IS_ARM_LINUX:
+      {
+	struct linux_arm_kernel_header lh;
+
+	if (grub_file_read (file, &lh, sizeof (lh)) != sizeof (lh))
+	  break;
+	/* Short forward branch in A32 state (for Raspberry pi kernels). */
+	if (lh.code0 == grub_cpu_to_le32_compile_time (0xea000006))
+	  {
+	    ret = 1;
+	    break;
+	  }
+
+	if (lh.magic ==
+	    grub_cpu_to_le32_compile_time (GRUB_LINUX_ARM_MAGIC_SIGNATURE))
+	  {
+	    ret = 1;
+	    break;
+	  }
+	break;
+      }
+    case IS_ARM64_LINUX:
+      {
+	struct linux_arm64_kernel_header lh;
+
+	if (grub_file_read (file, &lh, sizeof (lh)) != sizeof (lh))
+	  break;
+
+	if (lh.magic ==
+	    grub_cpu_to_le32_compile_time (GRUB_LINUX_ARM64_MAGIC_SIGNATURE))
+	  {
+	    ret = 1;
+	    break;
+	  }
+	break;
+      }
+    case IS_PAE_DOMU ... IS_DOM0:
+      {
+	struct grub_xen_file_info xen_inf;
+	elf = grub_xen_file (file);
+	if (!elf)
+	  break;
+	err = grub_xen_get_info (elf, &xen_inf);
+	if (err)
+	  break;
+	/* Unfortuntely no way to check if kernel supports dom0.  */
+	if (type == IS_DOM0)
+	  ret = 1;
+	if (type == IS_PAE_DOMU)
+	  ret = (xen_inf.arch == GRUB_XEN_FILE_I386_PAE
+		 || xen_inf.arch == GRUB_XEN_FILE_I386_PAE_BIMODE);
+	if (type == IS_64_DOMU)
+	  ret = (xen_inf.arch == GRUB_XEN_FILE_X86_64);
+	break;
+      }
+    case IS_MULTIBOOT:
+    case IS_MULTIBOOT2:
+      {
+	grub_uint32_t *buffer;
+	grub_ssize_t len;
+	grub_size_t search_size;
+	grub_uint32_t *header;
+	grub_uint32_t magic;
+	grub_size_t step;
+
+	if (type == IS_MULTIBOOT2)
+	  {
+	    search_size = 32768;
+	    magic = grub_cpu_to_le32_compile_time (0xe85250d6);
+	    step = 2;
+	  }
+	else
+	  {
+	    search_size = 8192;
+	    magic = grub_cpu_to_le32_compile_time (0x1BADB002);
+	    step = 1;
+	  }
+
+	buffer = grub_malloc (search_size);
+	if (!buffer)
+	  break;
+
+	len = grub_file_read (file, buffer, search_size);
+	if (len < 32)
+	  {
+	    grub_free (buffer);
+	    break;
+	  }
+
+	/* Look for the multiboot header in the buffer.  The header should
+	   be at least 12 bytes and aligned on a 4-byte boundary.  */
+	for (header = buffer;
+	     ((char *) header <=
+	      (char *) buffer + len - (type == IS_MULTIBOOT2 ? 16 : 12));
+	     header += step)
+	  {
+	    if (header[0] == magic
+		&& !(grub_le_to_cpu32 (header[0])
+		     + grub_le_to_cpu32 (header[1])
+		     + grub_le_to_cpu32 (header[2])
+		     + (type == IS_MULTIBOOT2
+			? grub_le_to_cpu32 (header[3]) : 0)))
+	      {
+		ret = 1;
+		break;
+	      }
+	  }
+
+	grub_free (buffer);
+	break;
+      }
+    case IS_X86_LINUX32:
+    case IS_X86_LINUX:
+      {
+	struct linux_i386_kernel_header lh;
+	if (grub_file_read (file, &lh, sizeof (lh)) != sizeof (lh))
+	  break;
+	if (lh.boot_flag != grub_cpu_to_le16_compile_time (0xaa55))
+	  break;
+
+	if (lh.setup_sects > GRUB_LINUX_MAX_SETUP_SECTS)
+	  break;
+
+	/* FIXME: some really old kernels (< 1.3.73) will fail this.  */
+	if (lh.header !=
+	    grub_cpu_to_le32_compile_time (GRUB_LINUX_I386_MAGIC_SIGNATURE)
+	    || grub_le_to_cpu16 (lh.version) < 0x0200)
+	  break;
+
+	if (type == IS_X86_LINUX)
+	  {
+	    ret = 1;
+	    break;
+	  }
+
+	/* FIXME: 2.03 is not always good enough (Linux 2.4 can be 2.03 and
+	   still not support 32-bit boot.  */
+	if (lh.header !=
+	    grub_cpu_to_le32_compile_time (GRUB_LINUX_I386_MAGIC_SIGNATURE)
+	    || grub_le_to_cpu16 (lh.version) < 0x0203)
+	  break;
+
+	if (!(lh.loadflags & GRUB_LINUX_FLAG_BIG_KERNEL))
+	  break;
+	ret = 1;
+	break;
+      }
+    case IS_HIBERNATED:
+      {
+	grub_uint8_t hibr_file_magic[4];
+	if (grub_file_read (file, &hibr_file_magic, sizeof (hibr_file_magic))
+	    != sizeof (hibr_file_magic))
+	  break;
+	if (grub_memcmp ("hibr", hibr_file_magic, sizeof (hibr_file_magic)) ==
+	    0
+	    || grub_memcmp ("HIBR", hibr_file_magic,
+			    sizeof (hibr_file_magic)) == 0)
+	  ret = 1;
+	break;
+      }
+    case IS_XNU64:
+    case IS_XNU32:
+      {
+	macho = grub_macho_open (args[0], GRUB_FILE_TYPE_XNU_KERNEL,
+				 (type == IS_XNU64));
+	if (!macho)
+	  break;
+	/* FIXME: more checks?  */
+	ret = 1;
+	break;
+      }
+    case IS_XNU_HIBR:
+      {
+	struct grub_xnu_hibernate_header hibhead;
+	if (grub_file_read (file, &hibhead, sizeof (hibhead))
+	    != sizeof (hibhead))
+	  break;
+	if (hibhead.magic !=
+	    grub_cpu_to_le32_compile_time (GRUB_XNU_HIBERNATE_MAGIC))
+	  break;
+	ret = 1;
+	break;
+      }
+    case IS_32_EFI:
+    case IS_64_EFI:
+    case IS_IA_EFI:
+    case IS_ARM64_EFI:
+    case IS_ARM_EFI:
+    case IS_RISCV32_EFI:
+    case IS_RISCV64_EFI:
+      {
+	char signature[4];
+	grub_uint32_t pe_offset;
+	struct grub_pe32_coff_header coff_head;
+
+	if (grub_file_read (file, signature, 2) != 2)
+	  break;
+	if (signature[0] != 'M' || signature[1] != 'Z')
+	  break;
+	if ((grub_ssize_t) grub_file_seek (file, 0x3c) == -1)
+	  break;
+	if (grub_file_read (file, &pe_offset, 4) != 4)
+	  break;
+	if ((grub_ssize_t) grub_file_seek (file, grub_le_to_cpu32 (pe_offset))
+	    == -1)
+	  break;
+	if (grub_file_read (file, signature, 4) != 4)
+	  break;
+	if (signature[0] != 'P' || signature[1] != 'E'
+	    || signature[2] != '\0' || signature[3] != '\0')
+	  break;
+
+	if (grub_file_read (file, &coff_head, sizeof (coff_head))
+	    != sizeof (coff_head))
+	  break;
+	if (type == IS_32_EFI
+	    && coff_head.machine !=
+	    grub_cpu_to_le16_compile_time (GRUB_PE32_MACHINE_I386))
+	  break;
+	if (type == IS_64_EFI
+	    && coff_head.machine !=
+	    grub_cpu_to_le16_compile_time (GRUB_PE32_MACHINE_X86_64))
+	  break;
+	if (type == IS_IA_EFI
+	    && coff_head.machine !=
+	    grub_cpu_to_le16_compile_time (GRUB_PE32_MACHINE_IA64))
+	  break;
+	if (type == IS_ARM64_EFI
+	    && coff_head.machine !=
+	    grub_cpu_to_le16_compile_time (GRUB_PE32_MACHINE_ARM64))
+	  break;
+	if (type == IS_ARM_EFI
+	    && coff_head.machine !=
+	    grub_cpu_to_le16_compile_time (GRUB_PE32_MACHINE_ARMTHUMB_MIXED))
+	  break;
+	if ((type == IS_RISCV32_EFI || type == IS_RISCV64_EFI)
+	    && coff_head.machine !=
+	    grub_cpu_to_le16_compile_time (GRUB_PE32_MACHINE_RISCV64))
+          /* TODO: Determine bitness dynamically */
+	  break;
+	if (type == IS_IA_EFI || type == IS_64_EFI || type == IS_ARM64_EFI ||
+	    type == IS_RISCV32_EFI || type == IS_RISCV64_EFI)
+	  {
+	    struct grub_pe64_optional_header o64;
+	    if (grub_file_read (file, &o64, sizeof (o64)) != sizeof (o64))
+	      break;
+	    if (o64.magic !=
+		grub_cpu_to_le16_compile_time (GRUB_PE32_PE64_MAGIC))
+	      break;
+	    if (o64.subsystem !=
+		grub_cpu_to_le16_compile_time
+		(GRUB_PE32_SUBSYSTEM_EFI_APPLICATION))
+	      break;
+	    ret = 1;
+	    break;
+	  }
+	if (type == IS_32_EFI || type == IS_ARM_EFI)
+	  {
+	    struct grub_pe32_optional_header o32;
+	    if (grub_file_read (file, &o32, sizeof (o32)) != sizeof (o32))
+	      break;
+	    if (o32.magic !=
+		grub_cpu_to_le16_compile_time (GRUB_PE32_PE32_MAGIC))
+	      break;
+	    if (o32.subsystem !=
+		grub_cpu_to_le16_compile_time
+		(GRUB_PE32_SUBSYSTEM_EFI_APPLICATION))
+	      break;
+	    ret = 1;
+	    break;
+	  }
+	break;
+      }
+    }
+
+  if (elf)
+    grub_elf_close (elf);
+  else if (macho)
+    grub_macho_close (macho);
+  else if (file)
+    grub_file_close (file);
+
+  if (!ret && (grub_errno == GRUB_ERR_BAD_OS || grub_errno == GRUB_ERR_NONE))
+    /* TRANSLATORS: it's a standalone boolean value,
+       opposite of "true".  */
+    grub_error (GRUB_ERR_TEST_FAILURE, N_("false"));
+  return grub_errno;
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT(file)
+{
+  cmd = grub_register_extcmd ("file", grub_cmd_file, 0,
+			      N_("OPTIONS FILE"),
+			      N_("Check if FILE is of specified type."),
+			      options);
+}
+
+GRUB_MOD_FINI(file)
+{
+  grub_unregister_extcmd (cmd);
+}
diff --git a/grub-core/commands/file32.c b/grub-core/commands/file32.c
new file mode 100644
index 0000000..0861c45
--- /dev/null
+++ b/grub-core/commands/file32.c
@@ -0,0 +1,5 @@
+#define GRUB_TARGET_WORDSIZE 32
+#define XX		32
+#define ehdrXX ehdr32
+#define grub_file_check_netbsdXX grub_file_check_netbsd32
+#include "fileXX.c"
diff --git a/grub-core/commands/file64.c b/grub-core/commands/file64.c
new file mode 100644
index 0000000..90890d4
--- /dev/null
+++ b/grub-core/commands/file64.c
@@ -0,0 +1,5 @@
+#define GRUB_TARGET_WORDSIZE 64
+#define XX		64
+#define ehdrXX ehdr64
+#define grub_file_check_netbsdXX grub_file_check_netbsd64
+#include "fileXX.c"
diff --git a/grub-core/commands/fileXX.c b/grub-core/commands/fileXX.c
new file mode 100644
index 0000000..c17d26c
--- /dev/null
+++ b/grub-core/commands/fileXX.c
@@ -0,0 +1,74 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2013  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/fileid.h>
+#include <grub/elfload.h>
+#include <grub/misc.h>
+
+#pragma GCC diagnostic ignored "-Wcast-align"
+
+int
+grub_file_check_netbsdXX (grub_elf_t elf)
+{
+  Elf_Shdr *s, *s0;
+
+  grub_size_t shnum = elf->ehdr.ehdrXX.e_shnum;
+  grub_size_t shentsize = elf->ehdr.ehdrXX.e_shentsize;
+  grub_size_t shsize = shnum * shentsize;
+  grub_off_t stroff;
+
+  if (!shnum || !shentsize)
+    return 0;
+
+  s0 = grub_malloc (shsize);
+  if (!s0)
+    return 0;
+
+  if (grub_file_seek (elf->file, elf->ehdr.ehdrXX.e_shoff) == (grub_off_t) -1)
+    goto fail;
+
+  if (grub_file_read (elf->file, s0, shsize) != (grub_ssize_t) shsize)
+    goto fail;
+
+  s = (Elf_Shdr *) ((char *) s0 + elf->ehdr.ehdrXX.e_shstrndx * shentsize);
+  stroff = s->sh_offset;
+
+  for (s = s0; s < (Elf_Shdr *) ((char *) s0 + shnum * shentsize);
+       s = (Elf_Shdr *) ((char *) s + shentsize))
+    {
+      char name[sizeof(".note.netbsd.ident")];
+      grub_memset (name, 0, sizeof (name));
+      if (grub_file_seek (elf->file, stroff + s->sh_name) == (grub_off_t) -1)
+	goto fail;
+
+      if (grub_file_read (elf->file, name, sizeof (name)) != (grub_ssize_t) sizeof (name))
+	{
+	  if (grub_errno)
+	    goto fail;
+	  continue;
+	}
+      if (grub_memcmp (name, ".note.netbsd.ident",
+		       sizeof(".note.netbsd.ident")) != 0)
+	continue;
+      grub_free (s0);
+      return 1;
+    }
+ fail:
+  grub_free (s0);
+  return 0;
+}
diff --git a/grub-core/commands/gptsync.c b/grub-core/commands/gptsync.c
new file mode 100644
index 0000000..444e248
--- /dev/null
+++ b/grub-core/commands/gptsync.c
@@ -0,0 +1,266 @@
+/* gptsync.c - fill the mbr based on gpt entries  */
+/* XXX: I don't know what to do if sector size isn't 512 bytes */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/command.h>
+#include <grub/dl.h>
+#include <grub/device.h>
+#include <grub/disk.h>
+#include <grub/msdos_partition.h>
+#include <grub/partition.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/fs.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+/* Convert a LBA address to a CHS address in the INT 13 format.  */
+/* Taken from grub1. */
+/* XXX: use hardcoded geometry of C = 1024, H = 255, S = 63.
+   Is it a problem?
+*/
+static void
+lba_to_chs (grub_uint32_t lba, grub_uint8_t *cl, grub_uint8_t *ch,
+	    grub_uint8_t *dh)
+{
+  grub_uint32_t cylinder, head, sector;
+  grub_uint32_t sectors = 63, heads = 255, cylinders = 1024;
+
+  sector = lba % sectors + 1;
+  head = (lba / sectors) % heads;
+  cylinder = lba / (sectors * heads);
+
+  if (cylinder >= cylinders)
+    {
+      *cl = *ch = *dh = 0xff;
+      return;
+    }
+
+  *cl = sector | ((cylinder & 0x300) >> 2);
+  *ch = cylinder & 0xFF;
+  *dh = head;
+}
+
+static grub_err_t
+grub_cmd_gptsync (grub_command_t cmd __attribute__ ((unused)),
+		  int argc, char **args)
+{
+  grub_device_t dev;
+  struct grub_msdos_partition_mbr mbr;
+  struct grub_partition *partition;
+  grub_disk_addr_t first_sector;
+  int numactive = 0;
+  int i;
+
+  if (argc < 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "device name required");
+  if (argc > 4)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "only 3 partitions can be "
+		       "in hybrid MBR");
+
+  if (args[0][0] == '(' && args[0][grub_strlen (args[0]) - 1] == ')')
+    {
+      args[0][grub_strlen (args[0]) - 1] = 0;
+      dev = grub_device_open (args[0] + 1);
+      args[0][grub_strlen (args[0])] = ')';
+    }
+  else
+    dev = grub_device_open (args[0]);
+
+  if (! dev)
+    return grub_errno;
+
+  if (! dev->disk)
+    {
+      grub_device_close (dev);
+      return grub_error (GRUB_ERR_BAD_ARGUMENT, "not a disk");
+    }
+
+  /* Read the protective MBR.  */
+  if (grub_disk_read (dev->disk, 0, 0, sizeof (mbr), &mbr))
+    {
+      grub_device_close (dev);
+      return grub_errno;
+    }
+
+  /* Check if it is valid.  */
+  if (mbr.signature != grub_cpu_to_le16_compile_time (GRUB_PC_PARTITION_SIGNATURE))
+    {
+      grub_device_close (dev);
+      return grub_error (GRUB_ERR_BAD_PART_TABLE, "no signature");
+    }
+
+  /* Make sure the MBR is a protective MBR and not a normal MBR.  */
+  for (i = 0; i < 4; i++)
+    if (mbr.entries[i].type == GRUB_PC_PARTITION_TYPE_GPT_DISK)
+      break;
+  if (i == 4)
+    {
+      grub_device_close (dev);
+      return grub_error (GRUB_ERR_BAD_PART_TABLE, "no GPT partition map found");
+    }
+
+  first_sector = dev->disk->total_sectors;
+  for (i = 1; i < argc; i++)
+    {
+      char *separator, csep = 0;
+      grub_uint8_t type;
+      separator = grub_strchr (args[i], '+');
+      if (! separator)
+	separator = grub_strchr (args[i], '-');
+      if (separator)
+	{
+	  csep = *separator;
+	  *separator = 0;
+	}
+      partition = grub_partition_probe (dev->disk, args[i]);
+      if (separator)
+	*separator = csep;
+      if (! partition)
+	{
+	  grub_device_close (dev);
+	  return grub_error (GRUB_ERR_UNKNOWN_DEVICE,
+			     N_("no such partition"));
+	}
+
+      if (partition->start + partition->len > 0xffffffff)
+	{
+	  grub_device_close (dev);
+	  return grub_error (GRUB_ERR_OUT_OF_RANGE,
+			     "only partitions residing in the first 2TB "
+			     "can be present in hybrid MBR");
+	}
+
+
+      if (first_sector > partition->start)
+	first_sector = partition->start;
+
+      if (separator && *(separator + 1))
+	type = grub_strtoul (separator + 1, 0, 0);
+      else
+	{
+	  grub_fs_t fs = 0;
+	  dev->disk->partition = partition;
+	  fs = grub_fs_probe (dev);
+
+	  /* Unknown filesystem isn't fatal. */
+	  if (grub_errno == GRUB_ERR_UNKNOWN_FS)
+	    {
+	      fs = 0;
+	      grub_errno = GRUB_ERR_NONE;
+	    }
+
+	  if (fs && grub_strcmp (fs->name, "ntfs") == 0)
+	    type = GRUB_PC_PARTITION_TYPE_NTFS;
+	  else if (fs && grub_strcmp (fs->name, "fat") == 0)
+	    /* FIXME: detect FAT16. */
+	    type = GRUB_PC_PARTITION_TYPE_FAT32_LBA;
+	  else if (fs && (grub_strcmp (fs->name, "hfsplus") == 0
+			  || grub_strcmp (fs->name, "hfs") == 0))
+	    type = GRUB_PC_PARTITION_TYPE_HFS;
+	  else
+	    /* FIXME: detect more types. */
+	    type = GRUB_PC_PARTITION_TYPE_EXT2FS;
+
+	  dev->disk->partition = 0;
+	}
+
+      mbr.entries[i].flag = (csep == '+') ? 0x80 : 0;
+      if (csep == '+')
+	{
+	  numactive++;
+	  if (numactive == 2)
+	    {
+	      grub_device_close (dev);
+	      return grub_error (GRUB_ERR_BAD_ARGUMENT,
+				 "only one partition can be active");
+	    }
+	}
+      mbr.entries[i].type = type;
+      mbr.entries[i].start = grub_cpu_to_le32 (partition->start);
+      lba_to_chs (partition->start,
+		  &(mbr.entries[i].start_sector),
+		  &(mbr.entries[i].start_cylinder),
+		  &(mbr.entries[i].start_head));
+      lba_to_chs (partition->start + partition->len - 1,
+		  &(mbr.entries[i].end_sector),
+		  &(mbr.entries[i].end_cylinder),
+		  &(mbr.entries[i].end_head));
+      mbr.entries[i].length = grub_cpu_to_le32 (partition->len);
+      grub_free (partition);
+    }
+  for (; i < 4; i++)
+    grub_memset (&(mbr.entries[i]), 0, sizeof (mbr.entries[i]));
+
+  /* The protective partition. */
+  if (first_sector > 0xffffffff)
+    first_sector = 0xffffffff;
+  else
+    first_sector--;
+  mbr.entries[0].flag = 0;
+  mbr.entries[0].type = GRUB_PC_PARTITION_TYPE_GPT_DISK;
+  mbr.entries[0].start = grub_cpu_to_le32_compile_time (1);
+  lba_to_chs (1,
+	      &(mbr.entries[0].start_sector),
+	      &(mbr.entries[0].start_cylinder),
+	      &(mbr.entries[0].start_head));
+  lba_to_chs (first_sector,
+	      &(mbr.entries[0].end_sector),
+	      &(mbr.entries[0].end_cylinder),
+	      &(mbr.entries[0].end_head));
+  mbr.entries[0].length = grub_cpu_to_le32 (first_sector);
+
+  mbr.signature = grub_cpu_to_le16_compile_time (GRUB_PC_PARTITION_SIGNATURE);
+
+  if (grub_disk_write (dev->disk, 0, 0, sizeof (mbr), &mbr))
+    {
+      grub_device_close (dev);
+      return grub_errno;
+    }
+
+  grub_device_close (dev);
+
+  grub_printf_ (N_("New MBR is written to `%s'\n"), args[0]);
+
+  return GRUB_ERR_NONE;
+}
+
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(gptsync)
+{
+  (void) mod;			/* To stop warning. */
+  cmd = grub_register_command ("gptsync", grub_cmd_gptsync,
+			       N_("DEVICE [PARTITION[+/-[TYPE]]] ..."),
+			       /* TRANSLATORS: MBR type is one-byte partition
+				  type id.  */
+			       N_("Fill hybrid MBR of GPT drive DEVICE. "
+			       "Specified partitions will be a part "
+			       "of hybrid MBR. Up to 3 partitions are "
+			       "allowed. TYPE is an MBR type. "
+			       "+ means that partition is active. "
+			       "Only one partition can be active."));
+}
+
+GRUB_MOD_FINI(gptsync)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/halt.c b/grub-core/commands/halt.c
new file mode 100644
index 0000000..f8596ec
--- /dev/null
+++ b/grub-core/commands/halt.c
@@ -0,0 +1,47 @@
+/* halt.c - command to halt the computer.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2005,2007,2008  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/command.h>
+#include <grub/misc.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_err_t __attribute__ ((noreturn))
+grub_cmd_halt (grub_command_t cmd __attribute__ ((unused)),
+	       int argc __attribute__ ((unused)),
+	       char **args __attribute__ ((unused)))
+{
+  grub_halt ();
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(halt)
+{
+  cmd = grub_register_command ("halt", grub_cmd_halt,
+			       0, N_("Halts the computer.  This command does" 
+			       " not work on all firmware implementations."));
+}
+
+GRUB_MOD_FINI(halt)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/hashsum.c b/grub-core/commands/hashsum.c
new file mode 100644
index 0000000..b8a22b0
--- /dev/null
+++ b/grub-core/commands/hashsum.c
@@ -0,0 +1,334 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/extcmd.h>
+#include <grub/file.h>
+#include <grub/disk.h>
+#include <grub/mm.h>
+#include <grub/misc.h>
+#include <grub/crypto.h>
+#include <grub/normal.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const struct grub_arg_option options[] = {
+  {"hash", 'h', 0, N_("Specify hash to use."), N_("HASH"), ARG_TYPE_STRING},
+  {"check", 'c', 0, N_("Check hashes of files with hash list FILE."),
+   N_("FILE"), ARG_TYPE_STRING},
+  {"prefix", 'p', 0, N_("Base directory for hash list."), N_("DIR"),
+   ARG_TYPE_STRING},
+  {"keep-going", 'k', 0, N_("Don't stop after first error."), 0, 0},
+  {"uncompress", 'u', 0, N_("Uncompress file before checksumming."), 0, 0},
+  {0, 0, 0, 0, 0, 0}
+};
+
+static struct { const char *name; const char *hashname; } aliases[] = 
+  {
+    {"sha256sum", "sha256"},
+    {"sha512sum", "sha512"},
+    {"sha1sum", "sha1"},
+    {"md5sum", "md5"},
+    {"crc", "crc32"},
+  };
+
+static inline int
+hextoval (char c)
+{
+  if (c >= '0' && c <= '9')
+    return c - '0';
+  if (c >= 'a' && c <= 'f')
+    return c - 'a' + 10;
+  if (c >= 'A' && c <= 'F')
+    return c - 'A' + 10;
+  return -1;
+}
+
+static grub_err_t
+hash_file (grub_file_t file, const gcry_md_spec_t *hash, void *result)
+{
+  void *context;
+  grub_uint8_t *readbuf;
+#define BUF_SIZE 4096
+  readbuf = grub_malloc (BUF_SIZE);
+  if (!readbuf)
+    return grub_errno;
+  context = grub_zalloc (hash->contextsize);
+  if (!readbuf || !context)
+    goto fail;
+
+  hash->init (context);
+  while (1)
+    {
+      grub_ssize_t r;
+      r = grub_file_read (file, readbuf, BUF_SIZE);
+      if (r < 0)
+	goto fail;
+      if (r == 0)
+	break;
+      hash->write (context, readbuf, r);
+    }
+  hash->final (context);
+  grub_memcpy (result, hash->read (context), hash->mdlen);
+
+  grub_free (readbuf);
+  grub_free (context);
+
+  return GRUB_ERR_NONE;
+
+ fail:
+  grub_free (readbuf);
+  grub_free (context);
+  return grub_errno;
+}
+
+static grub_err_t
+check_list (const gcry_md_spec_t *hash, const char *hashfilename,
+	    const char *prefix, int keep, int uncompress)
+{
+  grub_file_t hashlist, file;
+  char *buf = NULL;
+  grub_uint8_t expected[GRUB_CRYPTO_MAX_MDLEN];
+  grub_uint8_t actual[GRUB_CRYPTO_MAX_MDLEN];
+  grub_err_t err;
+  unsigned i;
+  unsigned unread = 0, mismatch = 0;
+
+  if (hash->mdlen > GRUB_CRYPTO_MAX_MDLEN)
+    return grub_error (GRUB_ERR_BUG, "mdlen is too long");
+
+  hashlist = grub_file_open (hashfilename, GRUB_FILE_TYPE_HASHLIST);
+  if (!hashlist)
+    return grub_errno;
+  
+  while (grub_free (buf), (buf = grub_file_getline (hashlist)))
+    {
+      const char *p = buf;
+      while (grub_isspace (p[0]))
+	p++;
+      for (i = 0; i < hash->mdlen; i++)
+	{
+	  int high, low;
+	  high = hextoval (*p++);
+	  low = hextoval (*p++);
+	  if (high < 0 || low < 0)
+	    {
+	      grub_free (buf);
+	      return grub_error (GRUB_ERR_BAD_FILE_TYPE, "invalid hash list");
+	    }
+	  expected[i] = (high << 4) | low;
+	}
+      if ((p[0] != ' ' && p[0] != '\t') || (p[1] != ' ' && p[1] != '\t'))
+	{
+	  grub_free (buf);
+	  return grub_error (GRUB_ERR_BAD_FILE_TYPE, "invalid hash list");
+	}
+      p += 2;
+      if (prefix)
+	{
+	  char *filename;
+	  
+	  filename = grub_xasprintf ("%s/%s", prefix, p);
+	  if (!filename)
+	    {
+	      grub_free (buf);
+	      return grub_errno;
+	    }
+	  file = grub_file_open (filename, GRUB_FILE_TYPE_TO_HASH
+				 | (!uncompress ? GRUB_FILE_TYPE_NO_DECOMPRESS
+				    : GRUB_FILE_TYPE_NONE));
+	  grub_free (filename);
+	}
+      else
+	file = grub_file_open (p, GRUB_FILE_TYPE_TO_HASH
+			       | (!uncompress ? GRUB_FILE_TYPE_NO_DECOMPRESS
+				  : GRUB_FILE_TYPE_NONE));
+      if (!file)
+	{
+	  grub_file_close (hashlist);
+	  grub_free (buf);
+	  return grub_errno;
+	}
+      err = hash_file (file, hash, actual);
+      grub_file_close (file);
+      if (err)
+	{
+	  grub_printf_ (N_("%s: READ ERROR\n"), p);
+	  if (!keep)
+	    {
+	      grub_file_close (hashlist);
+	      grub_free (buf);
+	      return err;
+	    }
+	  grub_print_error ();
+	  grub_errno = GRUB_ERR_NONE;
+	  unread++;
+	  continue;
+	}
+      if (grub_crypto_memcmp (expected, actual, hash->mdlen) != 0)
+	{
+	  grub_printf_ (N_("%s: HASH MISMATCH\n"), p);
+	  if (!keep)
+	    {
+	      grub_file_close (hashlist);
+	      grub_free (buf);
+	      return grub_error (GRUB_ERR_TEST_FAILURE,
+				 "hash of '%s' mismatches", p);
+	    }
+	  mismatch++;
+	  continue;	  
+	}
+      grub_printf_ (N_("%s: OK\n"), p);
+    }
+  if (mismatch || unread)
+    return grub_error (GRUB_ERR_TEST_FAILURE,
+		       "%d files couldn't be read and hash "
+		       "of %d files mismatches", unread, mismatch);
+  return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_cmd_hashsum (struct grub_extcmd_context *ctxt,
+		  int argc, char **args)
+{
+  struct grub_arg_list *state = ctxt->state;
+  const char *hashname = NULL;
+  const char *prefix = NULL;
+  const gcry_md_spec_t *hash;
+  unsigned i;
+  int keep = state[3].set;
+  int uncompress = state[4].set;
+  unsigned unread = 0;
+
+  for (i = 0; i < ARRAY_SIZE (aliases); i++)
+    if (grub_strcmp (ctxt->extcmd->cmd->name, aliases[i].name) == 0)
+      hashname = aliases[i].hashname;
+  if (state[0].set)
+    hashname = state[0].arg;
+
+  if (!hashname)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "no hash specified");
+
+  hash = grub_crypto_lookup_md_by_name (hashname);
+  if (!hash)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "unknown hash");
+
+  if (hash->mdlen > GRUB_CRYPTO_MAX_MDLEN)
+    return grub_error (GRUB_ERR_BUG, "mdlen is too long");
+
+  if (state[2].set)
+    prefix = state[2].arg;
+
+  if (state[1].set)
+    {
+      if (argc != 0)
+	return grub_error (GRUB_ERR_BAD_ARGUMENT,
+			   "--check is incompatible with file list");
+      return check_list (hash, state[1].arg, prefix, keep, uncompress);
+    }
+
+  for (i = 0; i < (unsigned) argc; i++)
+    {
+      GRUB_PROPERLY_ALIGNED_ARRAY (result, GRUB_CRYPTO_MAX_MDLEN);
+      grub_file_t file;
+      grub_err_t err;
+      unsigned j;
+      file = grub_file_open (args[i], GRUB_FILE_TYPE_TO_HASH
+			     | (!uncompress ? GRUB_FILE_TYPE_NO_DECOMPRESS
+				: GRUB_FILE_TYPE_NONE));
+      if (!file)
+	{
+	  if (!keep)
+	    return grub_errno;
+	  grub_print_error ();
+	  grub_errno = GRUB_ERR_NONE;
+	  unread++;
+	  continue;
+	}
+      err = hash_file (file, hash, result);
+      grub_file_close (file);
+      if (err)
+	{
+	  if (!keep)
+	    return err;
+	  grub_print_error ();
+	  grub_errno = GRUB_ERR_NONE;
+	  unread++;
+	  continue;
+	}
+      for (j = 0; j < hash->mdlen; j++)
+	grub_printf ("%02x", ((grub_uint8_t *) result)[j]);
+      grub_printf ("  %s\n", args[i]);
+    }
+
+  if (unread)
+    return grub_error (GRUB_ERR_TEST_FAILURE, "%d files couldn't be read",
+		       unread);
+  return GRUB_ERR_NONE;
+}
+
+static grub_extcmd_t cmd, cmd_md5, cmd_sha1, cmd_sha256, cmd_sha512, cmd_crc;
+
+GRUB_MOD_INIT(hashsum)
+{
+  cmd = grub_register_extcmd ("hashsum", grub_cmd_hashsum, 0,
+			      N_("-h HASH [-c FILE [-p PREFIX]] "
+				 "[FILE1 [FILE2 ...]]"),
+			      /* TRANSLATORS: "hash checksum" is just to
+				 be a bit more precise, you can treat it as
+				 just "hash".  */
+			      N_("Compute or check hash checksum."),
+			      options);
+  cmd_md5 = grub_register_extcmd ("md5sum", grub_cmd_hashsum, 0,
+				  N_("[-c FILE [-p PREFIX]] "
+				     "[FILE1 [FILE2 ...]]"),
+				  N_("Compute or check hash checksum."),
+				  options);
+  cmd_sha1 = grub_register_extcmd ("sha1sum", grub_cmd_hashsum, 0,
+				   N_("[-c FILE [-p PREFIX]] "
+				      "[FILE1 [FILE2 ...]]"),
+				   N_("Compute or check hash checksum."),
+				   options);
+  cmd_sha256 = grub_register_extcmd ("sha256sum", grub_cmd_hashsum, 0,
+				     N_("[-c FILE [-p PREFIX]] "
+					"[FILE1 [FILE2 ...]]"),
+				     N_("Compute or check hash checksum."),
+				     options);
+  cmd_sha512 = grub_register_extcmd ("sha512sum", grub_cmd_hashsum, 0,
+				     N_("[-c FILE [-p PREFIX]] "
+					"[FILE1 [FILE2 ...]]"),
+				     N_("Compute or check hash checksum."),
+				     options);
+
+  cmd_crc = grub_register_extcmd ("crc", grub_cmd_hashsum, 0,
+				     N_("[-c FILE [-p PREFIX]] "
+					"[FILE1 [FILE2 ...]]"),
+				     N_("Compute or check hash checksum."),
+				     options);
+}
+
+GRUB_MOD_FINI(hashsum)
+{
+  grub_unregister_extcmd (cmd);
+  grub_unregister_extcmd (cmd_md5);
+  grub_unregister_extcmd (cmd_sha1);
+  grub_unregister_extcmd (cmd_sha256);
+  grub_unregister_extcmd (cmd_sha512);
+  grub_unregister_extcmd (cmd_crc);
+}
diff --git a/grub-core/commands/hdparm.c b/grub-core/commands/hdparm.c
new file mode 100644
index 0000000..2e2319e
--- /dev/null
+++ b/grub-core/commands/hdparm.c
@@ -0,0 +1,447 @@
+/* hdparm.c - command to get/set ATA disk parameters.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/ata.h>
+#include <grub/scsi.h>
+#include <grub/disk.h>
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/lib/hexdump.h>
+#include <grub/extcmd.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const struct grub_arg_option options[] = {
+  {"apm",             'B', 0, N_("Set Advanced Power Management\n"
+			      "(1=low, ..., 254=high, 255=off)."),
+			      0, ARG_TYPE_INT},
+  {"power",           'C', 0, N_("Display power mode."), 0, ARG_TYPE_NONE},
+  {"security-freeze", 'F', 0, N_("Freeze ATA security settings until reset."),
+			      0, ARG_TYPE_NONE},
+  {"health",          'H', 0, N_("Display SMART health status."), 0, ARG_TYPE_NONE},
+  {"aam",             'M', 0, N_("Set Automatic Acoustic Management\n"
+			      "(0=off, 128=quiet, ..., 254=fast)."),
+			      0, ARG_TYPE_INT},
+  {"standby-timeout", 'S', 0, N_("Set standby timeout\n"
+			      "(0=off, 1=5s, 2=10s, ..., 240=20m, 241=30m, ...)."),
+			      0, ARG_TYPE_INT},
+  {"standby",         'y', 0, N_("Set drive to standby mode."), 0, ARG_TYPE_NONE},
+  {"sleep",           'Y', 0, N_("Set drive to sleep mode."), 0, ARG_TYPE_NONE},
+  {"identify",        'i', 0, N_("Print drive identity and settings."),
+			      0, ARG_TYPE_NONE},
+  {"dumpid",          'I', 0, N_("Show raw contents of ATA IDENTIFY sector."),
+			       0, ARG_TYPE_NONE},
+  {"smart",            -1, 0, N_("Disable/enable SMART (0/1)."), 0, ARG_TYPE_INT},
+  {"quiet",           'q', 0, N_("Do not print messages."), 0, ARG_TYPE_NONE},
+  {0, 0, 0, 0, 0, 0}
+};
+
+enum grub_ata_smart_commands
+  {
+    GRUB_ATA_FEAT_SMART_ENABLE  = 0xd8,
+    GRUB_ATA_FEAT_SMART_DISABLE = 0xd9,
+    GRUB_ATA_FEAT_SMART_STATUS  = 0xda,
+  };
+
+static int quiet = 0;
+
+static grub_err_t
+grub_hdparm_do_ata_cmd (grub_ata_t ata, grub_uint8_t cmd,
+			grub_uint8_t features, grub_uint8_t sectors,
+			void * buffer, int size)
+{
+  struct grub_disk_ata_pass_through_parms apt;
+  grub_memset (&apt, 0, sizeof (apt));
+
+  apt.taskfile.cmd = cmd;
+  apt.taskfile.features = features;
+  apt.taskfile.sectors = sectors;
+  apt.taskfile.disk = 0xE0;
+
+  apt.buffer = buffer;
+  apt.size = size;
+
+  if (ata->dev->readwrite (ata, &apt, 0))
+    return grub_errno;
+
+  return GRUB_ERR_NONE;
+}
+
+static int
+grub_hdparm_do_check_powermode_cmd (grub_ata_t ata)
+{
+  struct grub_disk_ata_pass_through_parms apt;
+  grub_memset (&apt, 0, sizeof (apt));
+
+  apt.taskfile.cmd = GRUB_ATA_CMD_CHECK_POWER_MODE;
+  apt.taskfile.disk = 0xE0;
+
+  if (ata->dev->readwrite (ata, &apt, 0))
+    return -1;
+
+  return apt.taskfile.sectors;
+}
+
+static int
+grub_hdparm_do_smart_cmd (grub_ata_t ata, grub_uint8_t features)
+{
+  struct grub_disk_ata_pass_through_parms apt;
+  grub_memset (&apt, 0, sizeof (apt));
+
+  apt.taskfile.cmd = GRUB_ATA_CMD_SMART;
+  apt.taskfile.features = features;
+  apt.taskfile.lba_mid  = 0x4f;
+  apt.taskfile.lba_high = 0xc2;
+  apt.taskfile.disk = 0xE0;
+
+  if (ata->dev->readwrite (ata, &apt, 0))
+    return -1;
+
+  if (features == GRUB_ATA_FEAT_SMART_STATUS)
+    {
+      if (   apt.taskfile.lba_mid  == 0x4f
+          && apt.taskfile.lba_high == 0xc2)
+	return 0; /* Good SMART status.  */
+      else if (   apt.taskfile.lba_mid  == 0xf4
+	       && apt.taskfile.lba_high == 0x2c)
+	return 1; /* Bad SMART status.  */
+      else
+	return -1;
+    }
+  return 0;
+}
+
+static grub_err_t
+grub_hdparm_simple_cmd (const char * msg,
+			grub_ata_t ata, grub_uint8_t cmd)
+{
+  if (! quiet && msg)
+    grub_printf ("%s", msg);
+
+  grub_err_t err = grub_hdparm_do_ata_cmd (ata, cmd, 0, 0, NULL, 0);
+
+  if (! quiet && msg)
+    grub_printf ("%s\n", ! err ? "" : ": not supported");
+  return err;
+}
+
+static grub_err_t
+grub_hdparm_set_val_cmd (const char * msg, int val,
+			 grub_ata_t ata, grub_uint8_t cmd,
+			 grub_uint8_t features, grub_uint8_t sectors)
+{
+  if (! quiet && msg && *msg)
+    {
+      if (val >= 0)
+	grub_printf ("Set %s to %d", msg, val);
+      else
+	grub_printf ("Disable %s", msg);
+    }
+
+  grub_err_t err = grub_hdparm_do_ata_cmd (ata, cmd, features, sectors,
+					   NULL, 0);
+
+  if (! quiet && msg)
+    grub_printf ("%s\n", ! err ? "" : ": not supported");
+  return err;
+}
+
+static const char *
+le16_to_char (grub_uint16_t *dest, const grub_uint16_t * src16, unsigned bytes)
+{
+  unsigned i;
+  for (i = 0; i < bytes / 2; i++)
+    dest[i] = grub_swap_bytes16 (src16[i]);
+  dest[i] = 0;
+  return (char *) dest;
+}
+
+static void
+grub_hdparm_print_identify (const grub_uint16_t * idw)
+{
+  /* Print identity strings.  */
+  grub_uint16_t tmp[21];
+  grub_printf ("Model:    \"%.40s\"\n", le16_to_char (tmp, &idw[27], 40));
+  grub_printf ("Firmware: \"%.8s\"\n",  le16_to_char (tmp, &idw[23], 8));
+  grub_printf ("Serial:   \"%.20s\"\n", le16_to_char (tmp, &idw[10], 20));
+
+  /* Print AAM, APM and SMART settings.  */
+  grub_uint16_t features1 = grub_le_to_cpu16 (idw[82]);
+  grub_uint16_t features2 = grub_le_to_cpu16 (idw[83]);
+  grub_uint16_t enabled1  = grub_le_to_cpu16 (idw[85]);
+  grub_uint16_t enabled2  = grub_le_to_cpu16 (idw[86]);
+
+  grub_printf ("Automatic Acoustic Management: ");
+  if (features2 & 0x0200)
+    {
+      if (enabled2 & 0x0200)
+	{
+	  grub_uint16_t aam = grub_le_to_cpu16 (idw[94]);
+	  grub_printf ("%u (128=quiet, ..., 254=fast, recommended=%u)\n",
+		       aam & 0xff, (aam >> 8) & 0xff);
+	}
+      else
+	grub_printf ("disabled\n");
+    }
+  else
+    grub_printf ("not supported\n");
+
+  grub_printf ("Advanced Power Management: ");
+  if (features2 & 0x0008)
+    {
+      if (enabled2 & 0x0008)
+	grub_printf ("%u (1=low, ..., 254=high)\n",
+		     grub_le_to_cpu16 (idw[91]) & 0xff);
+      else
+	grub_printf ("disabled\n");
+    }
+  else
+    grub_printf ("not supported\n");
+
+  grub_printf ("SMART Feature Set: ");
+  if (features1 & 0x0001)
+    grub_printf ("%sabled\n", (enabled1 & 0x0001 ? "en" : "dis"));
+  else
+    grub_printf ("not supported\n");
+
+  /* Print security settings.  */
+  grub_uint16_t security = grub_le_to_cpu16 (idw[128]);
+
+  grub_printf ("ATA Security: ");
+  if (security & 0x0001)
+    grub_printf ("%s, %s, %s, %s\n",
+		 (security & 0x0002 ? "ENABLED" : "disabled"),
+		 (security & 0x0004 ? "**LOCKED**"  : "not locked"),
+		 (security & 0x0008 ? "frozen" : "NOT FROZEN"),
+		 (security & 0x0010 ? "COUNT EXPIRED" : "count not expired"));
+  else
+    grub_printf ("not supported\n");
+}
+
+static void
+grub_hdparm_print_standby_tout (int timeout)
+{
+  if (timeout == 0)
+    grub_printf ("off");
+  else if (timeout <= 252 || timeout == 255)
+    {
+      int h = 0, m = 0 , s = 0;
+      if (timeout == 255)
+	{
+	  m = 21;
+	  s = 15;
+	}
+      else if (timeout == 252)
+	m = 21;
+      else if (timeout <= 240)
+	{
+	  s = timeout * 5;
+	  m = s / 60;
+	  s %= 60;
+	}
+      else
+	{
+	  m = (timeout - 240) * 30;
+	  h  = m / 60;
+	  m %= 60;
+	}
+      grub_printf ("%02d:%02d:%02d", h, m, s);
+    }
+  else
+    grub_printf ("invalid or vendor-specific");
+}
+
+static int get_int_arg (const struct grub_arg_list *state)
+{
+  return (state->set ? (int)grub_strtoul (state->arg, 0, 0) : -1);
+}
+
+static grub_err_t
+grub_cmd_hdparm (grub_extcmd_context_t ctxt, int argc, char **args)
+{
+  struct grub_arg_list *state = ctxt->state;
+  struct grub_ata *ata;
+  const char *diskname;
+
+  /* Check command line.  */
+  if (argc != 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected"));
+
+  if (args[0][0] == '(')
+    {
+      grub_size_t len = grub_strlen (args[0]);
+      if (args[0][len - 1] == ')')
+	args[0][len - 1] = 0;
+      diskname = &args[0][1];
+    }
+  else
+    diskname = &args[0][0];
+
+  int i = 0;
+  int apm          = get_int_arg (&state[i++]);
+  int power        = state[i++].set;
+  int sec_freeze   = state[i++].set;
+  int health       = state[i++].set;
+  int aam          = get_int_arg (&state[i++]);
+  int standby_tout = get_int_arg (&state[i++]);
+  int standby_now  = state[i++].set;
+  int sleep_now    = state[i++].set;
+  int ident        = state[i++].set;
+  int dumpid       = state[i++].set;
+  int enable_smart = get_int_arg (&state[i++]);
+  quiet            = state[i++].set;
+
+  /* Open disk.  */
+  grub_disk_t disk = grub_disk_open (diskname);
+  if (! disk)
+    return grub_errno;
+
+  switch (disk->dev->id)
+    {
+    case GRUB_DISK_DEVICE_ATA_ID:
+      ata = disk->data;
+      break;
+    case GRUB_DISK_DEVICE_SCSI_ID:
+      if (((disk->id >> GRUB_SCSI_ID_SUBSYSTEM_SHIFT) & 0xFF)
+	  == GRUB_SCSI_SUBSYSTEM_PATA
+	  || (((disk->id >> GRUB_SCSI_ID_SUBSYSTEM_SHIFT) & 0xFF)
+	      == GRUB_SCSI_SUBSYSTEM_AHCI))
+	{
+	  ata = ((struct grub_scsi *) disk->data)->data;
+	  break;
+	}
+      /* FALLTHROUGH */
+    default:
+      grub_disk_close (disk);
+      return grub_error (GRUB_ERR_IO, "not an ATA device");
+    }
+    
+
+  /* Change settings.  */
+  if (aam >= 0)
+    grub_hdparm_set_val_cmd ("Automatic Acoustic Management", (aam ? aam : -1),
+			     ata, GRUB_ATA_CMD_SET_FEATURES,
+			     (aam ? 0x42 : 0xc2), aam);
+
+  if (apm >= 0)
+    grub_hdparm_set_val_cmd ("Advanced Power Management",
+			     (apm != 255 ? apm : -1), ata,
+			     GRUB_ATA_CMD_SET_FEATURES,
+			     (apm != 255 ? 0x05 : 0x85),
+			     (apm != 255 ? apm : 0));
+
+  if (standby_tout >= 0)
+    {
+      if (! quiet)
+	{
+	  grub_printf ("Set standby timeout to %d (", standby_tout);
+	  grub_hdparm_print_standby_tout (standby_tout);
+	  grub_printf (")");
+	}
+      /* The IDLE cmd sets disk to idle mode and configures standby timer.  */
+      grub_hdparm_set_val_cmd ("", -1, ata, GRUB_ATA_CMD_IDLE, 0, standby_tout);
+    }
+
+  if (enable_smart >= 0)
+    {
+      if (! quiet)
+	grub_printf ("%sable SMART operations", (enable_smart ? "En" : "Dis"));
+      int err = grub_hdparm_do_smart_cmd (ata, (enable_smart ?
+	          GRUB_ATA_FEAT_SMART_ENABLE : GRUB_ATA_FEAT_SMART_DISABLE));
+      if (! quiet)
+	grub_printf ("%s\n", err ? ": not supported" : "");
+    }
+
+  if (sec_freeze)
+    grub_hdparm_simple_cmd ("Freeze security settings", ata,
+                            GRUB_ATA_CMD_SECURITY_FREEZE_LOCK);
+
+  /* Print/dump IDENTIFY.  */
+  if (ident || dumpid)
+    {
+      grub_uint16_t buf[GRUB_DISK_SECTOR_SIZE / 2];
+      if (grub_hdparm_do_ata_cmd (ata, GRUB_ATA_CMD_IDENTIFY_DEVICE,
+          0, 0, buf, sizeof (buf)))
+	grub_printf ("Cannot read ATA IDENTIFY data\n");
+      else
+	{
+	  if (ident)
+	    grub_hdparm_print_identify (buf);
+	  if (dumpid)
+	    hexdump (0, (char *) buf, sizeof (buf));
+	}
+    }
+
+  /* Check power mode.  */
+  if (power)
+    {
+      grub_printf ("Disk power mode is: ");
+      int mode = grub_hdparm_do_check_powermode_cmd (ata);
+      if (mode < 0)
+        grub_printf ("unknown\n");
+      else
+	grub_printf ("%s (0x%02x)\n",
+		     (mode == 0xff ? "active/idle" :
+		      mode == 0x80 ? "idle" :
+		      mode == 0x00 ? "standby" : "unknown"), mode);
+    }
+
+  /* Check health.  */
+  int status = 0;
+  if (health)
+    {
+      if (! quiet)
+	grub_printf ("SMART status is: ");
+      int err = grub_hdparm_do_smart_cmd (ata, GRUB_ATA_FEAT_SMART_STATUS);
+      if (! quiet)
+	grub_printf ("%s\n", (err  < 0 ? "unknown" :
+	                      err == 0 ? "OK" : "*BAD*"));
+      status = (err > 0);
+    }
+
+  /* Change power mode.  */
+  if (standby_now)
+    grub_hdparm_simple_cmd ("Set disk to standby mode", ata,
+			    GRUB_ATA_CMD_STANDBY_IMMEDIATE);
+
+  if (sleep_now)
+    grub_hdparm_simple_cmd ("Set disk to sleep mode", ata,
+			    GRUB_ATA_CMD_SLEEP);
+
+  grub_disk_close (disk);
+
+  grub_errno = GRUB_ERR_NONE;
+  return status;
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT(hdparm)
+{
+  cmd = grub_register_extcmd_lockdown ("hdparm", grub_cmd_hdparm, 0,
+				       N_("[OPTIONS] DISK"),
+				       N_("Get/set ATA disk parameters."), options);
+}
+
+GRUB_MOD_FINI(hdparm)
+{
+  grub_unregister_extcmd (cmd);
+}
diff --git a/grub-core/commands/help.c b/grub-core/commands/help.c
new file mode 100644
index 0000000..f0be89b
--- /dev/null
+++ b/grub-core/commands/help.c
@@ -0,0 +1,153 @@
+/* help.c - command to show a help text.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2005,2007,2008,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/term.h>
+#include <grub/extcmd.h>
+#include <grub/i18n.h>
+#include <grub/mm.h>
+#include <grub/normal.h>
+#include <grub/charset.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_err_t
+grub_cmd_help (grub_extcmd_context_t ctxt __attribute__ ((unused)), int argc,
+	       char **args)
+{
+  int cnt = 0;
+  char *currarg;
+
+  if (argc == 0)
+    {
+      grub_command_t cmd;
+      FOR_COMMANDS(cmd)
+      {
+	if ((cmd->prio & GRUB_COMMAND_FLAG_ACTIVE))
+	  {
+	    struct grub_term_output *term;
+	    const char *summary_translated = _(cmd->summary);
+	    char *command_help;
+	    grub_uint32_t *unicode_command_help;
+	    grub_uint32_t *unicode_last_position;
+
+	    command_help = grub_xasprintf ("%s %s", cmd->name, summary_translated);
+	    if (!command_help)
+	      break;
+
+	    grub_utf8_to_ucs4_alloc (command_help, &unicode_command_help,
+				     &unicode_last_position);
+
+	    FOR_ACTIVE_TERM_OUTPUTS(term)
+	    {
+	      unsigned stringwidth;
+	      grub_uint32_t *unicode_last_screen_position;
+
+	      unicode_last_screen_position = unicode_command_help;
+
+	      stringwidth = 0;
+
+	      while (unicode_last_screen_position < unicode_last_position && 
+		     stringwidth < ((grub_term_width (term) / 2) - 2))
+		{
+		  struct grub_unicode_glyph glyph;
+		  unicode_last_screen_position 
+		    += grub_unicode_aglomerate_comb (unicode_last_screen_position,
+						     unicode_last_position
+						     - unicode_last_screen_position,
+						     &glyph);
+
+		  stringwidth
+		    += grub_term_getcharwidth (term, &glyph);
+		}
+
+	      grub_print_ucs4 (unicode_command_help,
+			       unicode_last_screen_position, 0, 0, term);
+	      if (!(cnt % 2))
+		grub_print_spaces (term, grub_term_width (term) / 2
+				   - stringwidth);
+	    }
+
+	    if (cnt % 2)
+	      grub_printf ("\n");
+	    cnt++;
+	  
+	    grub_free (command_help);
+	    grub_free (unicode_command_help);
+	  }
+      }
+      if (!(cnt % 2))
+	grub_printf ("\n");
+    }
+  else
+    {
+      int i;
+      grub_command_t cmd_iter, cmd, cmd_next;
+
+      for (i = 0; i < argc; i++)
+	{
+	  currarg = args[i];
+
+	  FOR_COMMANDS_SAFE (cmd_iter, cmd_next)
+	  {
+	    if (!(cmd_iter->prio & GRUB_COMMAND_FLAG_ACTIVE))
+	      continue;
+
+	    if (grub_strncmp (cmd_iter->name, currarg,
+			      grub_strlen (currarg)) != 0)
+	      continue;
+	    if (cmd_iter->flags & GRUB_COMMAND_FLAG_DYNCMD)
+	      cmd = grub_dyncmd_get_cmd (cmd_iter);
+	    else
+	      cmd = cmd_iter;
+	    if (!cmd)
+	      {
+		grub_print_error ();
+		continue;
+	      }
+	    if (cnt++ > 0)
+	      grub_printf ("\n\n");
+
+	    if ((cmd->flags & GRUB_COMMAND_FLAG_EXTCMD) &&
+		! (cmd->flags & GRUB_COMMAND_FLAG_DYNCMD))
+	      grub_arg_show_help ((grub_extcmd_t) cmd->data);
+	    else
+	      grub_printf ("%s %s %s\n%s\n", _("Usage:"), cmd->name,
+			   _(cmd->summary), _(cmd->description));
+	  }
+	}
+    }
+
+  return 0;
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT(help)
+{
+  cmd = grub_register_extcmd ("help", grub_cmd_help, 0,
+			      N_("[PATTERN ...]"),
+			      N_("Show a help message."), 0);
+}
+
+GRUB_MOD_FINI(help)
+{
+  grub_unregister_extcmd (cmd);
+}
diff --git a/grub-core/commands/hexdump.c b/grub-core/commands/hexdump.c
new file mode 100644
index 0000000..eaa1246
--- /dev/null
+++ b/grub-core/commands/hexdump.c
@@ -0,0 +1,133 @@
+/* hexdump.c - command to dump the contents of a file or memory */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2007,2008,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/file.h>
+#include <grub/disk.h>
+#include <grub/misc.h>
+#include <grub/lib/hexdump.h>
+#include <grub/extcmd.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const struct grub_arg_option options[] = {
+  {"skip", 's', 0, N_("Skip offset bytes from the beginning of file."), 0,
+   ARG_TYPE_INT},
+  {"length", 'n', 0, N_("Read only LENGTH bytes."), 0, ARG_TYPE_INT},
+  {0, 0, 0, 0, 0, 0}
+};
+
+static grub_err_t
+grub_cmd_hexdump (grub_extcmd_context_t ctxt, int argc, char **args)
+{
+  struct grub_arg_list *state = ctxt->state;
+  char buf[GRUB_DISK_SECTOR_SIZE * 4];
+  grub_ssize_t size, length;
+  grub_disk_addr_t skip;
+  int namelen;
+
+  if (argc != 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+
+  namelen = grub_strlen (args[0]);
+  skip = (state[0].set) ? grub_strtoull (state[0].arg, 0, 0) : 0;
+  length = (state[1].set) ? grub_strtoul (state[1].arg, 0, 0) : 256;
+
+  if (!grub_strcmp (args[0], "(mem)"))
+    hexdump (skip, (char *) (grub_addr_t) skip, length);
+  else if ((args[0][0] == '(') && (args[0][namelen - 1] == ')'))
+    {
+      grub_disk_t disk;
+      grub_disk_addr_t sector;
+      grub_size_t ofs;
+
+      args[0][namelen - 1] = 0;
+      disk = grub_disk_open (&args[0][1]);
+      if (! disk)
+        return 0;
+
+      sector = (skip >> (GRUB_DISK_SECTOR_BITS + 2)) * 4;
+      ofs = skip & (GRUB_DISK_SECTOR_SIZE * 4 - 1);
+      while (length)
+        {
+          grub_size_t len;
+
+          len = length;
+          if (len > sizeof (buf))
+            len = sizeof (buf);
+
+          if (grub_disk_read (disk, sector, ofs, len, buf))
+            break;
+
+          hexdump (skip, buf, len);
+
+          ofs = 0;
+          skip += len;
+          length -= len;
+          sector += 4;
+        }
+
+      grub_disk_close (disk);
+    }
+  else
+    {
+      grub_file_t file;
+
+      file = grub_file_open (args[0], GRUB_FILE_TYPE_HEXCAT);
+      if (! file)
+	return 0;
+
+      file->offset = skip;
+
+      while ((size = grub_file_read (file, buf, sizeof (buf))) > 0)
+	{
+	  unsigned long len;
+
+	  len = ((length) && (size > length)) ? length : size;
+	  hexdump (skip, buf, len);
+	  skip += len;
+	  if (length)
+	    {
+	      length -= len;
+	      if (!length)
+		break;
+	    }
+	}
+
+      grub_file_close (file);
+    }
+
+  return 0;
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT (hexdump)
+{
+  cmd = grub_register_extcmd ("hexdump", grub_cmd_hexdump, 0,
+			      N_("[OPTIONS] FILE_OR_DEVICE"),
+			      N_("Show raw contents of a file or memory."),
+			      options);
+}
+
+GRUB_MOD_FINI (hexdump)
+{
+  grub_unregister_extcmd (cmd);
+}
diff --git a/grub-core/commands/i386/cmosdump.c b/grub-core/commands/i386/cmosdump.c
new file mode 100644
index 0000000..626485c
--- /dev/null
+++ b/grub-core/commands/i386/cmosdump.c
@@ -0,0 +1,64 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2009,2013  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/command.h>
+#include <grub/misc.h>
+#include <grub/cmos.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_err_t
+grub_cmd_cmosdump (struct grub_command *cmd __attribute__ ((unused)),
+		   int argc __attribute__ ((unused)), char *argv[] __attribute__ ((unused)))
+{
+  int i;
+
+  for (i = 0; i < 256; i++)
+    {
+      grub_err_t err;
+      grub_uint8_t value;
+      if ((i & 0xf) == 0)
+	grub_printf ("%02x: ", i);
+
+      err = grub_cmos_read (i, &value);
+      if (err)
+	return err;
+
+      grub_printf ("%02x ", value);
+      if ((i & 0xf) == 0xf)
+	grub_printf ("\n");
+    }
+  return GRUB_ERR_NONE;
+}
+
+static grub_command_t cmd;
+
+
+GRUB_MOD_INIT(cmosdump)
+{
+  cmd = grub_register_command ("cmosdump", grub_cmd_cmosdump,
+			       0,
+			       N_("Show raw dump of the CMOS contents."));
+}
+
+GRUB_MOD_FINI(cmosdump)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/i386/cmostest.c b/grub-core/commands/i386/cmostest.c
new file mode 100644
index 0000000..9f6b56a
--- /dev/null
+++ b/grub-core/commands/i386/cmostest.c
@@ -0,0 +1,124 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/command.h>
+#include <grub/misc.h>
+#include <grub/cmos.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_err_t
+parse_args (int argc, char *argv[], int *byte, int *bit)
+{
+  const char *rest;
+
+  if (argc != 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "address required");
+
+  *byte = grub_strtoul (argv[0], &rest, 0);
+  if (*rest != ':')
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "address required");
+
+  *bit = grub_strtoul (rest + 1, 0, 0);
+
+  return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_cmd_cmostest (struct grub_command *cmd __attribute__ ((unused)),
+		   int argc, char *argv[])
+{
+  int byte = 0, bit = 0;
+  grub_err_t err;
+  grub_uint8_t value;
+
+  err = parse_args (argc, argv, &byte, &bit);
+  if (err)
+    return err;
+
+  err = grub_cmos_read (byte, &value);
+  if (err)
+    return err;
+
+  if (value & (1 << bit))
+    return GRUB_ERR_NONE;
+
+  return grub_error (GRUB_ERR_TEST_FAILURE, N_("false"));
+}
+
+static grub_err_t
+grub_cmd_cmosclean (struct grub_command *cmd __attribute__ ((unused)),
+		    int argc, char *argv[])
+{
+  int byte = 0, bit = 0;
+  grub_err_t err;
+  grub_uint8_t value;
+
+  err = parse_args (argc, argv, &byte, &bit);
+  if (err)
+    return err;
+  err = grub_cmos_read (byte, &value);
+  if (err)
+    return err;
+
+  return grub_cmos_write (byte, value & (~(1 << bit)));
+}
+
+static grub_err_t
+grub_cmd_cmosset (struct grub_command *cmd __attribute__ ((unused)),
+		    int argc, char *argv[])
+{
+  int byte = 0, bit = 0;
+  grub_err_t err;
+  grub_uint8_t value;
+
+  err = parse_args (argc, argv, &byte, &bit);
+  if (err)
+    return err;
+  err = grub_cmos_read (byte, &value);
+  if (err)
+    return err;
+
+  return grub_cmos_write (byte, value | (1 << bit));
+}
+
+static grub_command_t cmd, cmd_clean, cmd_set;
+
+
+GRUB_MOD_INIT(cmostest)
+{
+  cmd = grub_register_command ("cmostest", grub_cmd_cmostest,
+			       N_("BYTE:BIT"),
+			       N_("Test bit at BYTE:BIT in CMOS."));
+  cmd_clean = grub_register_command ("cmosclean", grub_cmd_cmosclean,
+				     N_("BYTE:BIT"),
+				     N_("Clear bit at BYTE:BIT in CMOS."));
+  cmd_set = grub_register_command ("cmosset", grub_cmd_cmosset,
+				   N_("BYTE:BIT"),
+				   /* TRANSLATORS: A bit may be either set (1) or clear (0).  */
+				   N_("Set bit at BYTE:BIT in CMOS."));
+}
+
+GRUB_MOD_FINI(cmostest)
+{
+  grub_unregister_command (cmd);
+  grub_unregister_command (cmd_clean);
+  grub_unregister_command (cmd_set);
+}
diff --git a/grub-core/commands/i386/coreboot/cb_timestamps.c b/grub-core/commands/i386/coreboot/cb_timestamps.c
new file mode 100644
index 0000000..e97ea6b
--- /dev/null
+++ b/grub-core/commands/i386/coreboot/cb_timestamps.c
@@ -0,0 +1,126 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2013  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+#include <grub/coreboot/lbio.h>
+#include <grub/i386/tsc.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_uint32_t
+tsc2ms (grub_uint64_t tsc)
+{
+  grub_uint64_t ah = tsc >> 32;
+  grub_uint64_t al = tsc & 0xffffffff;
+
+  return ((al * grub_tsc_rate) >> 32) + ah * grub_tsc_rate;
+}
+
+static const char *descs[] = {
+  [1] = "romstage",
+  [2] = "before RAM init",
+  [3] = "after RAM init",
+  [4] = "end of romstage",
+  [5] = "start of verified boot",
+  [6] = "end of verified boot",
+  [8] = "start of RAM copy",
+  [9] = "end of RAM copy",
+  [10] = "start of ramstage",
+  [11] = "start of bootblock",
+  [12] = "end of bootblock",
+  [13] = "starting to load romstage",
+  [14] = "finished loading romstage",
+  [15] = "starting LZMA decompress (ignore for x86)",
+  [16] = "finished LZMA decompress (ignore for x86)",
+  [30] = "device enumerate",
+  [40] = "device configure",
+  [50] = "device enable",
+  [60] = "device initialize",
+  [70] = "device done",
+  [75] = "CBMEM POST",
+  [80] = "writing tables",
+  [90] = "loading payload",
+  [98] = "wake jump",
+  [99] = "selfboot jump",
+};
+
+static int
+iterate_linuxbios_table (grub_linuxbios_table_item_t table_item,
+			 void *data)
+{
+  int *available = data;
+  grub_uint64_t last_tsc = 0;
+  struct grub_linuxbios_timestamp_table *ts_table;
+  unsigned i;
+
+  if (table_item->tag != GRUB_LINUXBIOS_MEMBER_TIMESTAMPS)
+    return 0;
+
+  *available = 1;
+  ts_table = (struct grub_linuxbios_timestamp_table *) (grub_addr_t)
+    *(grub_uint64_t *) (table_item + 1);
+
+  for (i = 0; i < ts_table->used; i++)
+    {
+      grub_uint32_t tmabs = tsc2ms (ts_table->entries[i].tsc);
+      grub_uint32_t tmrel = tsc2ms (ts_table->entries[i].tsc - last_tsc);
+      last_tsc = ts_table->entries[i].tsc;
+
+      grub_printf ("%3d.%03ds %2d.%03ds %02d %s\n", 
+		   tmabs / 1000, tmabs % 1000, tmrel / 1000, tmrel % 1000,
+		   ts_table->entries[i].id,
+		   (ts_table->entries[i].id < ARRAY_SIZE (descs)
+		    && descs[ts_table->entries[i].id])
+		   ? descs[ts_table->entries[i].id] : "");
+    }
+  return 1;
+}
+
+
+static grub_err_t
+grub_cmd_coreboot_boottime (struct grub_command *cmd __attribute__ ((unused)),
+			    int argc __attribute__ ((unused)),
+			    char *argv[] __attribute__ ((unused)))
+{
+  int available = 0;
+
+  grub_linuxbios_table_iterate (iterate_linuxbios_table, &available);
+  if (!available)
+    {
+      grub_puts_ (N_("No boot time statistics is available\n"));
+      return 0;
+    }
+ return 0;
+}
+
+static grub_command_t cmd_boottime;
+
+GRUB_MOD_INIT(cbtime)
+{
+  cmd_boottime =
+    grub_register_command ("coreboot_boottime", grub_cmd_coreboot_boottime,
+			   0, N_("Show coreboot boot time statistics."));
+}
+
+GRUB_MOD_FINI(cbtime)
+{
+  grub_unregister_command (cmd_boottime);
+}
diff --git a/grub-core/commands/i386/coreboot/cbls.c b/grub-core/commands/i386/coreboot/cbls.c
new file mode 100644
index 0000000..102291f
--- /dev/null
+++ b/grub-core/commands/i386/coreboot/cbls.c
@@ -0,0 +1,143 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2013  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+#include <grub/coreboot/lbio.h>
+#include <grub/i386/tsc.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const char *console_descs[] = {
+  "8250 UART",
+  "VGA",
+  "BTEXT",
+  "log buffer console",
+  "SROM",
+  "EHCI debug",
+  "memory-mapped 8250 UART"
+};
+
+static const char *descs[] = {
+  [GRUB_LINUXBIOS_MEMBER_MEMORY] = "memory map (`lsmmap' to list)",
+  [GRUB_LINUXBIOS_MEMBER_MAINBOARD] = "mainboard",
+  [4] = "version",
+  [5] = "extra version",
+  [6] = "build",
+  [7] = "compile time",
+  [8] = "compile by",
+  [9] = "compile host",
+  [0xa] = "compile domain",
+  [0xb] = "compiler",
+  [0xc] = "linker",
+  [0xd] = "assembler",
+  [0xf] = "serial",
+  [GRUB_LINUXBIOS_MEMBER_CONSOLE] = "console",
+  [GRUB_LINUXBIOS_MEMBER_FRAMEBUFFER] = "framebuffer",
+  [0x13] = "GPIO",
+  [0x15] = "VDAT",
+  [GRUB_LINUXBIOS_MEMBER_TIMESTAMPS] = "timestamps (`coreboot_boottime' to list)",
+  [GRUB_LINUXBIOS_MEMBER_CBMEMC] = "CBMEM console (`cbmemc' to list)",
+  [0x18] = "MRC cache",
+  [0x19] = "VBNV",
+  [0xc8] = "CMOS option table",
+  [0xc9] = "CMOS option",
+  [0xca] = "CMOS option enum",
+  [0xcb] = "CMOS option defaults",
+  [0xcc] = "CMOS checksum",
+};
+
+static int
+iterate_linuxbios_table (grub_linuxbios_table_item_t table_item,
+			 void *data __attribute__ ((unused)))
+{
+  if (table_item->tag < ARRAY_SIZE (descs) && descs[table_item->tag])
+    grub_printf ("tag=%02x size=%02x %s",
+		 table_item->tag, table_item->size, descs[table_item->tag]);
+  else
+    grub_printf ("tag=%02x size=%02x",
+		 table_item->tag, table_item->size);
+
+  switch (table_item->tag)
+    {
+    case GRUB_LINUXBIOS_MEMBER_FRAMEBUFFER:
+      {
+	struct grub_linuxbios_table_framebuffer *fb;
+	fb = (struct grub_linuxbios_table_framebuffer *) (table_item + 1);
+
+	grub_printf (": %dx%dx%d pitch=%d lfb=0x%llx %d/%d/%d/%d %d/%d/%d/%d",
+		     fb->width, fb->height,
+		     fb->bpp, fb->pitch, 
+		     (unsigned long long) fb->lfb,
+		     fb->red_mask_size, fb->green_mask_size,
+		     fb->blue_mask_size, fb->reserved_mask_size,
+		     fb->red_field_pos, fb->green_field_pos,
+		     fb->blue_field_pos, fb->reserved_field_pos);
+	break;
+      }
+    case GRUB_LINUXBIOS_MEMBER_MAINBOARD:
+      {
+	struct grub_linuxbios_mainboard *mb;
+	mb = (struct grub_linuxbios_mainboard *) (table_item + 1);
+	grub_printf (": vendor=`%s' part_number=`%s'",
+		     mb->strings + mb->vendor,
+		     mb->strings + mb->part_number);
+	break;
+      }
+    case 0x04 ... 0x0d:
+      grub_printf (": `%s'", (char *) (table_item + 1));
+      break;
+    case GRUB_LINUXBIOS_MEMBER_CONSOLE:
+      {
+	grub_uint16_t *val = (grub_uint16_t *) (table_item + 1);
+	grub_printf (": id=%d", *val);
+	if (*val < ARRAY_SIZE (console_descs)
+	    && console_descs[*val])
+	  grub_printf (" %s", console_descs[*val]);
+      }
+    }
+  grub_printf ("\n");
+
+  return 0;
+}
+
+
+static grub_err_t
+grub_cmd_lscoreboot (struct grub_command *cmd __attribute__ ((unused)),
+			    int argc __attribute__ ((unused)),
+			    char *argv[] __attribute__ ((unused)))
+{
+  grub_linuxbios_table_iterate (iterate_linuxbios_table, 0);
+  return 0;
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(cbls)
+{
+  cmd =
+    grub_register_command ("lscoreboot", grub_cmd_lscoreboot,
+			   0, N_("List coreboot tables."));
+}
+
+GRUB_MOD_FINI(cbls)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/i386/cpuid.c b/grub-core/commands/i386/cpuid.c
new file mode 100644
index 0000000..42b9841
--- /dev/null
+++ b/grub-core/commands/i386/cpuid.c
@@ -0,0 +1,125 @@
+/* cpuid.c - test for CPU features */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2006, 2007, 2009  Free Software Foundation, Inc.
+ *  Based on gcc/gcc/config/i386/driver-i386.c
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/env.h>
+#include <grub/command.h>
+#include <grub/extcmd.h>
+#include <grub/i386/cpuid.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const struct grub_arg_option options[] =
+  {
+    /* TRANSLATORS: "(default)" at the end means that this option is used if
+       no argument is specified.  */
+    {"long-mode", 'l', 0, N_("Check if CPU supports 64-bit (long) mode (default)."), 0, 0},
+    {"pae", 'p', 0, N_("Check if CPU supports Physical Address Extension."), 0, 0},
+    {0, 0, 0, 0, 0, 0}
+  };
+
+enum
+  {
+    MODE_LM = 0,
+    MODE_PAE = 1
+  };
+
+enum
+  {
+    bit_PAE = (1 << 6),
+  };
+enum
+  {
+    bit_LM = (1 << 29)
+  };
+
+unsigned char grub_cpuid_has_longmode = 0, grub_cpuid_has_pae = 0;
+
+static grub_err_t
+grub_cmd_cpuid (grub_extcmd_context_t ctxt,
+		int argc __attribute__ ((unused)),
+		char **args __attribute__ ((unused)))
+{
+  int val = 0;
+  if (ctxt->state[MODE_PAE].set)
+    val = grub_cpuid_has_pae;
+  else
+    val = grub_cpuid_has_longmode;
+  return val ? GRUB_ERR_NONE
+    /* TRANSLATORS: it's a standalone boolean value,
+       opposite of "true".  */
+    : grub_error (GRUB_ERR_TEST_FAILURE, N_("false"));
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT(cpuid)
+{
+#ifdef __x86_64__
+  /* grub-emu */
+  grub_cpuid_has_longmode = 1;
+  grub_cpuid_has_pae = 1;
+#else
+  unsigned int eax, ebx, ecx, edx;
+  unsigned int max_level;
+  unsigned int ext_level;
+
+  /* See if we can use cpuid.  */
+  asm volatile ("pushfl; pushfl; popl %0; movl %0,%1; xorl %2,%0;"
+		"pushl %0; popfl; pushfl; popl %0; popfl"
+		: "=&r" (eax), "=&r" (ebx)
+		: "i" (0x00200000));
+  if (((eax ^ ebx) & 0x00200000) == 0)
+    goto done;
+
+  /* Check the highest input value for eax.  */
+  grub_cpuid (0, eax, ebx, ecx, edx);
+  /* We only look at the first four characters.  */
+  max_level = eax;
+  if (max_level == 0)
+    goto done;
+
+  if (max_level >= 1)
+    {
+      grub_cpuid (1, eax, ebx, ecx, edx);
+      grub_cpuid_has_pae = !!(edx & bit_PAE);
+    }
+
+  grub_cpuid (0x80000000, eax, ebx, ecx, edx);
+  ext_level = eax;
+  if (ext_level < 0x80000000)
+    goto done;
+
+  grub_cpuid (0x80000001, eax, ebx, ecx, edx);
+  grub_cpuid_has_longmode = !!(edx & bit_LM);
+done:
+#endif
+
+  cmd = grub_register_extcmd ("cpuid", grub_cmd_cpuid, 0,
+			      "[-l]", N_("Check for CPU features."), options);
+}
+
+GRUB_MOD_FINI(cpuid)
+{
+  grub_unregister_extcmd (cmd);
+}
diff --git a/grub-core/commands/i386/pc/drivemap.c b/grub-core/commands/i386/pc/drivemap.c
new file mode 100644
index 0000000..7f7f2d4
--- /dev/null
+++ b/grub-core/commands/i386/pc/drivemap.c
@@ -0,0 +1,428 @@
+/* drivemap.c - command to manage the BIOS drive mappings.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2008, 2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/extcmd.h>
+#include <grub/dl.h>
+#include <grub/mm.h>
+#include <grub/misc.h>
+#include <grub/disk.h>
+#include <grub/loader.h>
+#include <grub/env.h>
+#include <grub/machine/biosnum.h>
+#include <grub/i18n.h>
+#include <grub/memory.h>
+#include <grub/machine/memory.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+/* Real mode IVT slot (seg:off far pointer) for interrupt 0x13.  */
+static grub_uint32_t *const int13slot = (grub_uint32_t *) (4 * 0x13);
+
+/* Remember to update enum opt_idxs accordingly.  */
+static const struct grub_arg_option options[] = {
+  /* TRANSLATORS: In this file "mapping" refers to a change GRUB makes so if
+     your language doesn't have an equivalent of "mapping" you can
+     use the word like "rerouting".
+   */
+  {"list", 'l', 0, N_("Show the current mappings."), 0, 0},
+  {"reset", 'r', 0, N_("Reset all mappings to the default values."), 0, 0},
+  {"swap", 's', 0, N_("Perform both direct and reverse mappings."), 0, 0},
+  {0, 0, 0, 0, 0, 0}
+};
+
+/* Remember to update options[] accordingly.  */
+enum opt_idxs
+{
+  OPTIDX_LIST = 0,
+  OPTIDX_RESET,
+  OPTIDX_SWAP,
+};
+
+/* Realmode far ptr (2 * 16b) to the previous INT13h handler.  */
+extern grub_uint32_t grub_drivemap_oldhandler;
+
+/* The type "void" is used for imported assembly labels, takes no storage and
+   serves just to take the address with &label.  */
+
+/* The assembly function to replace the old INT13h handler. It does not follow
+   any C callspecs and returns with IRET.  */
+extern const void grub_drivemap_handler;
+
+/* Start of the drive mappings area (space reserved at runtime).  */
+extern const void grub_drivemap_mapstart;
+
+typedef struct drivemap_node
+{
+  struct drivemap_node *next;
+  grub_uint8_t newdrive;
+  grub_uint8_t redirto;
+} drivemap_node_t;
+
+typedef struct GRUB_PACKED int13map_node
+{
+  grub_uint8_t disknum;
+  grub_uint8_t mapto;
+} int13map_node_t;
+
+#define INT13H_OFFSET(x) \
+	(((grub_uint8_t *)(x)) - ((grub_uint8_t *)&grub_drivemap_handler))
+
+static drivemap_node_t *map_head;
+static void *drivemap_hook;
+static int drivemap_mmap;
+
+/* Puts the specified mapping into the table, replacing an existing mapping
+   for newdrive or adding a new one if required.  */
+static grub_err_t
+drivemap_set (grub_uint8_t newdrive, grub_uint8_t redirto)
+{
+  drivemap_node_t *mapping = 0;
+  drivemap_node_t *search = map_head;
+  while (search)
+    {
+      if (search->newdrive == newdrive)
+	{
+	  mapping = search;
+	  break;
+	}
+      search = search->next;
+    }
+
+  /* Check for pre-existing mappings to modify before creating a new one.  */
+  if (mapping)
+    mapping->redirto = redirto;
+  else
+    {
+      mapping = grub_malloc (sizeof (drivemap_node_t));
+      if (! mapping)
+	return grub_errno;
+      mapping->newdrive = newdrive;
+      mapping->redirto = redirto;
+      mapping->next = map_head;
+      map_head = mapping;
+    }
+  return GRUB_ERR_NONE;
+}
+
+/* Removes the mapping for newdrive from the table.  If there is no mapping,
+   then this function behaves like a no-op on the map.  */
+static void
+drivemap_remove (grub_uint8_t newdrive)
+{
+  drivemap_node_t *mapping = 0;
+  drivemap_node_t *search = map_head;
+  drivemap_node_t *previous = 0;
+
+  while (search)
+    {
+      if (search->newdrive == newdrive)
+	{
+	  mapping = search;
+	  break;
+	}
+      previous = search;
+      search = search->next;
+    }
+
+  if (mapping)
+    {
+      if (previous)
+	previous->next = mapping->next;
+      else
+	map_head = mapping->next;
+      grub_free (mapping);
+    }
+}
+
+/* Given a GRUB-like device name and a convenient location, stores the
+   related BIOS disk number.  Accepts devices like \((f|h)dN\), with
+   0 <= N < 128.  */
+static grub_err_t
+tryparse_diskstring (const char *str, grub_uint8_t *output)
+{
+  /* Skip opening paren in order to allow both (hd0) and hd0.  */
+  if (*str == '(')
+    str++;
+  if ((str[0] == 'f' || str[0] == 'h') && str[1] == 'd')
+    {
+      grub_uint8_t bios_num = (str[0] == 'h') ? 0x80 : 0x00;
+      unsigned long drivenum = grub_strtoul (str + 2, 0, 0);
+      if (grub_errno == GRUB_ERR_NONE && drivenum < 128)
+	{
+	  bios_num |= drivenum;
+	  if (output)
+	    *output = bios_num;
+	  return GRUB_ERR_NONE;
+	}
+    }
+  return grub_error (GRUB_ERR_BAD_ARGUMENT, "device format \"%s\" "
+		     "invalid: must be (f|h)dN, with 0 <= N < 128", str);
+}
+
+static grub_err_t
+list_mappings (void)
+{
+  /* Show: list mappings.  */
+  if (! map_head)
+    {
+      grub_puts_ (N_("No drives have been remapped"));
+      return GRUB_ERR_NONE;
+    }
+
+  /* TRANSLATORS:  This is the header of mapping list. 
+     On the left is how OS will see the disks and
+     on the right current GRUB vision.  */
+  grub_puts_ (N_("OS disk #num ------> GRUB/BIOS device"));
+  drivemap_node_t *curnode = map_head;
+  while (curnode)
+    {
+      grub_printf ("%cD #%-3u (0x%02x)       %cd%d\n",
+		   (curnode->newdrive & 0x80) ? 'H' : 'F',
+		   curnode->newdrive & 0x7F, curnode->newdrive,
+		   (curnode->redirto & 0x80) ? 'h' : 'f',
+		   curnode->redirto & 0x7F
+		   );
+      curnode = curnode->next;
+    }
+  return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_cmd_drivemap (struct grub_extcmd_context *ctxt, int argc, char **args)
+{
+  if (ctxt->state[OPTIDX_LIST].set)
+    {
+      return list_mappings ();
+    }
+  else if (ctxt->state[OPTIDX_RESET].set)
+    {
+      /* Reset: just delete all mappings, freeing their memory.  */
+      drivemap_node_t *curnode = map_head;
+      drivemap_node_t *prevnode = 0;
+      while (curnode)
+	{
+	  prevnode = curnode;
+	  curnode = curnode->next;
+	  grub_free (prevnode);
+	}
+      map_head = 0;
+      return GRUB_ERR_NONE;
+    }
+  else if (!ctxt->state[OPTIDX_SWAP].set && argc == 0)
+    {
+      /* No arguments */
+      return list_mappings ();
+    }
+
+  /* Neither flag: put mapping.  */
+  grub_uint8_t mapfrom = 0;
+  grub_uint8_t mapto = 0xFF;
+  grub_err_t err;
+
+  if (argc != 2)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("two arguments expected"));
+
+  err = tryparse_diskstring (args[0], &mapfrom);
+  if (err != GRUB_ERR_NONE)
+    return err;
+
+  err = tryparse_diskstring (args[1], &mapto);
+  if (err != GRUB_ERR_NONE)
+    return err;
+
+  if (mapto == mapfrom)
+    {
+      /* Reset to default.  */
+      grub_dprintf ("drivemap", "Removing mapping for %s (%02x)\n",
+		    args[0], mapfrom);
+      drivemap_remove (mapfrom);
+      return GRUB_ERR_NONE;
+    }
+  /* Set the mapping for the disk (overwrites any existing mapping).  */
+  grub_dprintf ("drivemap", "%s %s (%02x) = %s (%02x)\n",
+		ctxt->state[OPTIDX_SWAP].set ? "Swapping" : "Mapping",
+		args[1], mapto, args[0], mapfrom);
+  err = drivemap_set (mapto, mapfrom);
+  /* If -s, perform the reverse mapping too (only if the first was OK).  */
+  if (ctxt->state[OPTIDX_SWAP].set && err == GRUB_ERR_NONE)
+    err = drivemap_set (mapfrom, mapto);
+  return err;
+}
+
+/* Int13h handler installer - reserves conventional memory for the handler,
+   copies it over and sets the IVT entry for int13h.
+   This code rests on the assumption that GRUB does not activate any kind
+   of memory mapping apart from identity paging, since it accesses
+   realmode structures by their absolute addresses, like the IVT at 0;
+   and transforms a pmode pointer into a rmode seg:off far ptr.  */
+static grub_err_t
+install_int13_handler (int noret __attribute__ ((unused)))
+{
+  /* Size of the full int13 handler "bundle", including code and map.  */
+  grub_uint32_t total_size;
+  /* Base address of the space reserved for the handler bundle.  */
+  grub_uint8_t *handler_base = 0;
+  /* Address of the map within the deployed bundle.  */
+  int13map_node_t *handler_map;
+
+  int i;
+  int entries = 0;
+  drivemap_node_t *curentry = map_head;
+
+  /* Count entries to prepare a contiguous map block.  */
+  while (curentry)
+    {
+      entries++;
+      curentry = curentry->next;
+    }
+  if (entries == 0)
+    {
+      /* No need to install the int13h handler.  */
+      grub_dprintf ("drivemap", "No drives marked as remapped, not installing "
+		    "our int13h handler.\n");
+      return GRUB_ERR_NONE;
+    }
+
+  grub_dprintf ("drivemap", "Installing our int13h handler\n");
+
+  /* Save the pointer to the old handler.  */
+  grub_drivemap_oldhandler = *int13slot;
+  grub_dprintf ("drivemap", "Original int13 handler: %04x:%04x\n",
+		(grub_drivemap_oldhandler >> 16) & 0x0ffff,
+		grub_drivemap_oldhandler & 0x0ffff);
+
+  /* Find a rmode-segment-aligned zone in conventional memory big
+     enough to hold the handler and its data.  */
+  total_size = INT13H_OFFSET (&grub_drivemap_mapstart)
+    + (entries + 1) * sizeof (int13map_node_t);
+  grub_dprintf ("drivemap", "Payload is %u bytes long\n", total_size);
+  handler_base = grub_mmap_malign_and_register (16, ALIGN_UP (total_size, 16),
+						&drivemap_mmap,
+						GRUB_MEMORY_RESERVED,
+						GRUB_MMAP_MALLOC_LOW);
+  if (! handler_base)
+    return grub_error (GRUB_ERR_OUT_OF_MEMORY, "couldn't reserve "
+		       "memory for the int13h handler");
+
+  /* Copy int13h handler bundle to reserved area.  */
+  grub_dprintf ("drivemap", "Reserved memory at %p, copying handler\n",
+		handler_base);
+  grub_memcpy (handler_base, &grub_drivemap_handler,
+	       INT13H_OFFSET (&grub_drivemap_mapstart));
+
+  /* Copy the mappings to the reserved area.  */
+  curentry = map_head;
+  handler_map = (int13map_node_t *) (handler_base +
+				     INT13H_OFFSET (&grub_drivemap_mapstart));
+  grub_dprintf ("drivemap", "Target map at %p, copying mappings\n", handler_map);
+  for (i = 0; i < entries; ++i, curentry = curentry->next)
+    {
+      handler_map[i].disknum = curentry->newdrive;
+      handler_map[i].mapto = curentry->redirto;
+      grub_dprintf ("drivemap", "\t#%d: 0x%02x <- 0x%02x\n", i,
+		    handler_map[i].disknum, handler_map[i].mapto);
+    }
+  /* Signal end-of-map.  */
+  handler_map[i].disknum = 0;
+  handler_map[i].mapto = 0;
+  grub_dprintf ("drivemap", "\t#%d: 0x00 <- 0x00 (end)\n", i);
+
+  /* Install our function as the int13h handler in the IVT.  */
+  *int13slot = ((grub_uint32_t) handler_base) << 12;	/* Segment address.  */
+  grub_dprintf ("drivemap", "New int13 handler: %04x:%04x\n",
+		(*int13slot >> 16) & 0x0ffff, *int13slot & 0x0ffff);
+
+  return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+uninstall_int13_handler (void)
+{
+  if (! grub_drivemap_oldhandler)
+    return GRUB_ERR_NONE;
+
+  *int13slot = grub_drivemap_oldhandler;
+  grub_mmap_free_and_unregister (drivemap_mmap);
+  grub_drivemap_oldhandler = 0;
+  grub_dprintf ("drivemap", "Restored int13 handler: %04x:%04x\n",
+		(*int13slot >> 16) & 0x0ffff, *int13slot & 0x0ffff);
+
+  return GRUB_ERR_NONE;
+}
+
+static int
+grub_get_root_biosnumber_drivemap (void)
+{
+  const char *biosnum;
+  int ret = -1;
+  grub_device_t dev;
+
+  biosnum = grub_env_get ("biosnum");
+
+  if (biosnum)
+    return grub_strtoul (biosnum, 0, 0);
+
+  dev = grub_device_open (0);
+  if (dev && dev->disk && dev->disk->dev
+      && dev->disk->dev->id == GRUB_DISK_DEVICE_BIOSDISK_ID)
+    {
+      drivemap_node_t *curnode = map_head;
+      ret = (int) dev->disk->id;
+      while (curnode)
+	{
+	  if (curnode->redirto == ret)
+	    {
+	      ret = curnode->newdrive;
+	      break;
+	    }
+	  curnode = curnode->next;
+	}
+
+    }
+
+  if (dev)
+    grub_device_close (dev);
+
+  return ret;
+}
+
+static grub_extcmd_t cmd;
+static int (*grub_get_root_biosnumber_saved) (void);
+
+GRUB_MOD_INIT (drivemap)
+{
+  grub_get_root_biosnumber_saved = grub_get_root_biosnumber;
+  grub_get_root_biosnumber = grub_get_root_biosnumber_drivemap;
+  cmd = grub_register_extcmd ("drivemap", grub_cmd_drivemap, 0,
+			      N_("-l | -r | [-s] grubdev osdisk."),
+			      N_("Manage the BIOS drive mappings."),
+			      options);
+  drivemap_hook =
+    grub_loader_register_preboot_hook (&install_int13_handler,
+				       &uninstall_int13_handler,
+				       GRUB_LOADER_PREBOOT_HOOK_PRIO_NORMAL);
+}
+
+GRUB_MOD_FINI (drivemap)
+{
+  grub_get_root_biosnumber = grub_get_root_biosnumber_saved;
+  grub_loader_unregister_preboot_hook (drivemap_hook);
+  drivemap_hook = 0;
+  grub_unregister_extcmd (cmd);
+}
diff --git a/grub-core/commands/i386/pc/drivemap_int13h.S b/grub-core/commands/i386/pc/drivemap_int13h.S
new file mode 100644
index 0000000..3c87521
--- /dev/null
+++ b/grub-core/commands/i386/pc/drivemap_int13h.S
@@ -0,0 +1,124 @@
+/* drivemap_int13h.S - interrupt handler for the BIOS drive remapper */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2008, 2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/symbol.h>
+
+#define INT13H_OFFSET(x) ((x) - LOCAL (base))
+
+.code16
+
+/* Copy starts here.  When deployed, this code must be segment-aligned.  */
+
+/* The replacement int13 handler.   Preserve all registers.  */
+FUNCTION(grub_drivemap_handler)
+LOCAL (base):
+	/* Save %dx for future restore. */
+	push	%dx
+	/* Push flags. Used to simulate interrupt with original flags. */
+	pushf
+
+	/* Map the drive number (always in DL).  */
+	push	%ax
+	push	%bx
+#ifdef __APPLE__
+	LOCAL(mapstart_offset) = INT13H_OFFSET(LOCAL (mapstart)) 
+	movw	$LOCAL(mapstart_offset), %bx
+#else
+	movw	$INT13H_OFFSET(LOCAL (mapstart)), %bx
+#endif
+
+more_remaining:
+	movw	%cs:(%bx), %ax
+	cmpb	%ah, %al
+	jz	not_found /* DRV=DST => map end - drive not remapped, keep DL.  */
+	inc	%bx
+	inc	%bx
+	cmpb	%dl, %al
+	jnz	more_remaining /* Not found, but more remaining, loop.  */
+	movb	%ah, %dl /* Found - drive remapped, modify DL.  */
+
+not_found:
+	pop	%bx
+	pop	%ax
+
+	/* If the call isn't ah=0x8 or ah=0x15 we must restore %dx.  */
+	cmpb	$0x8, %ah
+	jz	norestore
+	cmpb	$0x15, %ah
+	jz	norestore
+
+	/* Restore flags.  */
+	popf
+	pushf
+
+#ifdef __APPLE__
+	LOCAL(oldhandler_offset) = INT13H_OFFSET (LOCAL (oldhandler))
+	lcall *%cs:LOCAL(oldhandler_offset)
+#else
+	lcall *%cs:INT13H_OFFSET (LOCAL (oldhandler))
+#endif
+
+	push	%bp
+	mov	%sp, %bp
+
+tail:
+	/* Save new flags below %esp so the caller will recieve new flags.  */
+	pushf
+	pop	%dx
+	mov	%dx, 8(%bp)
+
+	pop	%bp
+
+	/* Restore %dx.  */
+	pop	%dx
+	iret
+
+norestore:
+
+	/* Restore flags.  */
+	popf
+	pushf
+
+#ifdef __APPLE__
+	lcall *%cs:LOCAL(oldhandler_offset)
+#else
+	lcall *%cs:INT13H_OFFSET (LOCAL (oldhandler))
+#endif
+
+	push	%bp
+	mov	%sp, %bp
+
+	/* Save %dx. So it won't be restored to original value.  */
+	mov	%dx, 2(%bp)
+
+	jmp tail
+
+/* Far pointer to the old handler.  Stored as a CS:IP in the style of real-mode
+   IVT entries (thus PI:SC in mem).  */
+VARIABLE(grub_drivemap_oldhandler)
+LOCAL (oldhandler):
+	.word 0x0, 0x0
+
+/* This label MUST be at the end of the copied block, since the installer code
+   reserves additional space for mappings at runtime and copies them over it.  */
+	.align 2
+	
+VARIABLE(grub_drivemap_mapstart)
+LOCAL (mapstart):
+	.byte 0
diff --git a/grub-core/commands/i386/pc/halt.c b/grub-core/commands/i386/pc/halt.c
new file mode 100644
index 0000000..1e7c2c9
--- /dev/null
+++ b/grub-core/commands/i386/pc/halt.c
@@ -0,0 +1,126 @@
+/* halt.c - command to halt the computer.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2005,2007,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/extcmd.h>
+#include <grub/i18n.h>
+#include <grub/machine/int.h>
+#include <grub/acpi.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const struct grub_arg_option options[] =
+  {
+    {"no-apm", 'n', 0, N_("Do not use APM to halt the computer."), 0, 0},
+    {0, 0, 0, 0, 0, 0}
+  };
+
+static inline void __attribute__ ((noreturn))
+stop (void)
+{
+  while (1)
+    {
+      asm volatile ("hlt");
+    }
+}
+/*
+ * Halt the system, using APM if possible. If NO_APM is true, don't use
+ * APM even if it is available.
+ */
+void  __attribute__ ((noreturn))
+grub_halt (int no_apm)
+{
+  struct grub_bios_int_registers regs;
+
+  grub_acpi_halt ();
+
+  if (no_apm)
+    stop ();
+
+  /* detect APM */
+  regs.eax = 0x5300;
+  regs.ebx = 0;
+  regs.flags = GRUB_CPU_INT_FLAGS_DEFAULT;
+  grub_bios_interrupt (0x15, &regs);
+  
+  if (regs.flags & GRUB_CPU_INT_FLAGS_CARRY)
+    stop ();
+
+  /* disconnect APM first */
+  regs.eax = 0x5304;
+  regs.ebx = 0;
+  regs.flags = GRUB_CPU_INT_FLAGS_DEFAULT;
+  grub_bios_interrupt (0x15, &regs);
+
+  /* connect APM */
+  regs.eax = 0x5301;
+  regs.ebx = 0;
+  regs.flags = GRUB_CPU_INT_FLAGS_DEFAULT;
+  grub_bios_interrupt (0x15, &regs);
+  if (regs.flags & GRUB_CPU_INT_FLAGS_CARRY)
+    stop ();
+
+  /* set APM protocol level - 1.1 or bust. (this covers APM 1.2 also) */
+  regs.eax = 0x530E;
+  regs.ebx = 0;
+  regs.ecx = 0x0101;
+  regs.flags = GRUB_CPU_INT_FLAGS_DEFAULT;
+  grub_bios_interrupt (0x15, &regs);
+  if (regs.flags & GRUB_CPU_INT_FLAGS_CARRY)
+    stop ();
+
+  /* set the power state to off */
+  regs.eax = 0x5307;
+  regs.ebx = 1;
+  regs.ecx = 3;
+  regs.flags = GRUB_CPU_INT_FLAGS_DEFAULT;
+  grub_bios_interrupt (0x15, &regs);
+
+  /* shouldn't reach here */
+  stop ();
+}
+
+static grub_err_t __attribute__ ((noreturn))
+grub_cmd_halt (grub_extcmd_context_t ctxt,
+	       int argc __attribute__ ((unused)),
+	       char **args __attribute__ ((unused)))
+
+{
+  struct grub_arg_list *state = ctxt->state;
+  int no_apm = 0;
+
+  if (state[0].set)
+    no_apm = 1;
+  grub_halt (no_apm);
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT(halt)
+{
+  cmd = grub_register_extcmd ("halt", grub_cmd_halt, 0, "[-n]",
+			      N_("Halt the system, if possible using APM."),
+			      options);
+}
+
+GRUB_MOD_FINI(halt)
+{
+  grub_unregister_extcmd (cmd);
+}
diff --git a/grub-core/commands/i386/pc/lsapm.c b/grub-core/commands/i386/pc/lsapm.c
new file mode 100644
index 0000000..c82476d
--- /dev/null
+++ b/grub-core/commands/i386/pc/lsapm.c
@@ -0,0 +1,115 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2010  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/machine/int.h>
+#include <grub/machine/apm.h>
+#include <grub/dl.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+int
+grub_apm_get_info (struct grub_apm_info *info)
+{
+  struct grub_bios_int_registers regs;
+
+  /* detect APM */
+  regs.eax = 0x5300;
+  regs.ebx = 0;
+  regs.flags = GRUB_CPU_INT_FLAGS_DEFAULT;
+  grub_bios_interrupt (0x15, &regs);
+  
+  if (regs.flags & GRUB_CPU_INT_FLAGS_CARRY)
+    return 0;
+  info->version = regs.eax & 0xffff;
+  info->flags = regs.ecx & 0xffff;
+
+  /* disconnect APM first */
+  regs.eax = 0x5304;
+  regs.ebx = 0;
+  regs.flags = GRUB_CPU_INT_FLAGS_DEFAULT;
+  grub_bios_interrupt (0x15, &regs);
+
+  /* connect APM */
+  regs.eax = 0x5303;
+  regs.ebx = 0;
+  regs.flags = GRUB_CPU_INT_FLAGS_DEFAULT;
+  grub_bios_interrupt (0x15, &regs);
+
+  if (regs.flags & GRUB_CPU_INT_FLAGS_CARRY)
+    return 0;
+
+  info->cseg = regs.eax & 0xffff;
+  info->offset = regs.ebx;
+  info->cseg_16 = regs.ecx & 0xffff;
+  info->dseg = regs.edx & 0xffff;
+  info->cseg_len = regs.esi >> 16;
+  info->cseg_16_len = regs.esi & 0xffff;
+  info->dseg_len = regs.edi;
+
+  return 1;
+}
+
+static grub_err_t
+grub_cmd_lsapm (grub_command_t cmd __attribute__ ((unused)),
+		int argc __attribute__ ((unused)), char **args __attribute__ ((unused)))
+{
+  struct grub_apm_info info;
+  if (!grub_apm_get_info (&info))
+    return grub_error (GRUB_ERR_IO, N_("no APM found"));
+
+  grub_printf_ (N_("Version %u.%u\n"
+		   "32-bit CS = 0x%x, len = 0x%x, offset = 0x%x\n"
+		   "16-bit CS = 0x%x, len = 0x%x\n"
+		   "DS = 0x%x, len = 0x%x\n"),
+		info.version >> 8, info.version & 0xff,
+		info.cseg, info.cseg_len, info.offset,
+		info.cseg_16, info.cseg_16_len,
+		info.dseg, info.dseg_len);
+  grub_xputs (info.flags & GRUB_APM_FLAGS_16BITPROTECTED_SUPPORTED
+	      ? _("16-bit protected interface supported\n")
+	      : _("16-bit protected interface unsupported\n"));
+  grub_xputs (info.flags & GRUB_APM_FLAGS_32BITPROTECTED_SUPPORTED
+	      ? _("32-bit protected interface supported\n")
+	      : _("32-bit protected interface unsupported\n"));
+  grub_xputs (info.flags & GRUB_APM_FLAGS_CPUIDLE_SLOWS_DOWN
+	      ? _("CPU Idle slows down processor\n")
+	      : _("CPU Idle doesn't slow down processor\n"));
+  grub_xputs (info.flags & GRUB_APM_FLAGS_DISABLED
+	      ? _("APM disabled\n") : _("APM enabled\n"));
+  grub_xputs (info.flags & GRUB_APM_FLAGS_DISENGAGED
+	      ? _("APM disengaged\n") : _("APM engaged\n"));
+
+  return GRUB_ERR_NONE;
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(lsapm)
+{
+  cmd = grub_register_command ("lsapm", grub_cmd_lsapm, 0,
+			      N_("Show APM information."));
+}
+
+GRUB_MOD_FINI(lsapm)
+{
+  grub_unregister_command (cmd);
+}
+
+
diff --git a/grub-core/commands/i386/pc/play.c b/grub-core/commands/i386/pc/play.c
new file mode 100644
index 0000000..a980e46
--- /dev/null
+++ b/grub-core/commands/i386/pc/play.c
@@ -0,0 +1,197 @@
+/* play.c - command to play a tune  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2005,2007,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* Lots of this file is borrowed from GNU/Hurd generic-speaker driver.  */
+
+#include <grub/dl.h>
+#include <grub/file.h>
+#include <grub/disk.h>
+#include <grub/term.h>
+#include <grub/misc.h>
+#include <grub/cpu/io.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+#include <grub/time.h>
+#include <grub/speaker.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+#define BASE_TEMPO (60 * 1000)
+
+
+#define T_REST			((grub_uint16_t) 0)
+#define T_FINE			((grub_uint16_t) -1)
+
+struct note
+{
+  grub_uint16_t pitch;
+  grub_uint16_t duration;
+};
+
+/* Returns whether playing should continue.  */
+static int
+play (unsigned tempo, struct note *note)
+{
+  grub_uint64_t to;
+
+  if (note->pitch == T_FINE || grub_getkey_noblock () != GRUB_TERM_NO_KEY)
+    return 1;
+
+  grub_dprintf ("play", "pitch = %d, duration = %d\n", note->pitch,
+                note->duration);
+
+  switch (note->pitch)
+    {
+      case T_REST:
+        grub_speaker_beep_off ();
+        break;
+
+      default:
+        grub_speaker_beep_on (note->pitch);
+        break;
+    }
+
+  to = grub_get_time_ms () + BASE_TEMPO * note->duration / tempo;
+  while ((grub_get_time_ms () <= to)
+	 && (grub_getkey_noblock () == GRUB_TERM_NO_KEY));
+
+  return 0;
+}
+
+static grub_err_t
+grub_cmd_play (grub_command_t cmd __attribute__ ((unused)),
+	       int argc, char **args)
+{
+
+  if (argc < 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, 
+		       /* TRANSLATORS: It's musical notes, not the notes
+			  you take. Play command expects arguments which can
+			  be either a filename or tempo+notes.
+			  This error happens if none is specified.  */
+		       N_("filename or tempo and notes expected"));
+
+  if (argc == 1)
+    {
+      struct note buf;
+      grub_uint32_t tempo;
+      grub_file_t file;
+
+      file = grub_file_open (args[0], GRUB_FILE_TYPE_AUDIO);
+
+      if (! file)
+        return grub_errno;
+
+      if (grub_file_read (file, &tempo, sizeof (tempo)) != sizeof (tempo))
+        {
+          grub_file_close (file);
+	  if (!grub_errno)
+	    grub_error (GRUB_ERR_FILE_READ_ERROR, N_("premature end of file %s"),
+			args[0]);
+          return grub_errno;
+        }
+
+      if (!tempo)
+        {
+          grub_file_close (file);
+	  grub_error (GRUB_ERR_BAD_ARGUMENT, N_("Invalid tempo in %s"),
+		      args[0]);
+          return grub_errno;
+        }
+
+      tempo = grub_le_to_cpu32 (tempo);
+      grub_dprintf ("play","tempo = %d\n", tempo);
+
+      while (grub_file_read (file, &buf,
+                             sizeof (struct note)) == sizeof (struct note))
+        {
+          buf.pitch = grub_le_to_cpu16 (buf.pitch);
+          buf.duration = grub_le_to_cpu16 (buf.duration);
+
+          if (play (tempo, &buf))
+            break;
+        }
+
+      grub_file_close (file);
+    }
+  else
+    {
+      const char *end;
+      unsigned tempo;
+      struct note note;
+      int i;
+
+      tempo = grub_strtoul (args[0], &end, 0);
+
+      if (!tempo)
+        {
+	  grub_error (GRUB_ERR_BAD_ARGUMENT, N_("Invalid tempo in %s"),
+		      args[0]);
+          return grub_errno;
+        }
+
+      if (*end)
+        /* Was not a number either, assume it was supposed to be a file name.  */
+        return grub_error (GRUB_ERR_FILE_NOT_FOUND, N_("file `%s' not found"), args[0]);
+
+      grub_dprintf ("play","tempo = %d\n", tempo);
+
+      for (i = 1; i + 1 < argc; i += 2)
+        {
+          note.pitch = grub_strtoul (args[i], &end, 0);
+	  if (grub_errno)
+	    break;
+          if (*end)
+            {
+              grub_error (GRUB_ERR_BAD_NUMBER, N_("unrecognized number"));
+              break;
+            }
+
+          note.duration = grub_strtoul (args[i + 1], &end, 0);
+	  if (grub_errno)
+	    break;
+          if (*end)
+            {
+              grub_error (GRUB_ERR_BAD_NUMBER, N_("unrecognized number"));
+              break;
+            }
+
+          if (play (tempo, &note))
+            break;
+        }
+    }
+
+  grub_speaker_beep_off ();
+
+  return 0;
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(play)
+{
+  cmd = grub_register_command ("play", grub_cmd_play,
+			       N_("FILE | TEMPO [PITCH1 DURATION1] [PITCH2 DURATION2] ... "),
+			       N_("Play a tune."));
+}
+
+GRUB_MOD_FINI(play)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/i386/pc/sendkey.c b/grub-core/commands/i386/pc/sendkey.c
new file mode 100644
index 0000000..26d9acd
--- /dev/null
+++ b/grub-core/commands/i386/pc/sendkey.c
@@ -0,0 +1,387 @@
+/* sendkey.c - fake keystroke. */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2009  Free Software Foundation, Inc.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/err.h>
+#include <grub/dl.h>
+#include <grub/extcmd.h>
+#include <grub/cpu/io.h>
+#include <grub/loader.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv2+");
+
+static char sendkey[0x20];
+/* Length of sendkey.  */
+static int keylen = 0;
+static int noled = 0;
+static const struct grub_arg_option options[] =
+  {
+    {"num", 'n', 0, N_("set numlock mode"), "[on|off]", ARG_TYPE_STRING},
+    {"caps", 'c', 0, N_("set capslock mode"), "[on|off]", ARG_TYPE_STRING},
+    {"scroll", 's', 0, N_("set scrolllock mode"), "[on|off]", ARG_TYPE_STRING},
+    {"insert", 0, 0, N_("set insert mode"), "[on|off]", ARG_TYPE_STRING},
+    {"pause", 0, 0, N_("set pause mode"), "[on|off]", ARG_TYPE_STRING},
+    {"left-shift", 0, 0, N_("press left shift"), "[on|off]", ARG_TYPE_STRING},
+    {"right-shift", 0, 0, N_("press right shift"), "[on|off]", ARG_TYPE_STRING},
+    {"sysrq", 0, 0, N_("press SysRq"), "[on|off]", ARG_TYPE_STRING},
+    {"numkey", 0, 0, N_("press NumLock key"), "[on|off]", ARG_TYPE_STRING},
+    {"capskey", 0, 0, N_("press CapsLock key"), "[on|off]", ARG_TYPE_STRING},
+    {"scrollkey", 0, 0, N_("press ScrollLock key"), "[on|off]", ARG_TYPE_STRING},
+    {"insertkey", 0, 0, N_("press Insert key"), "[on|off]", ARG_TYPE_STRING},
+    {"left-alt", 0, 0, N_("press left alt"), "[on|off]", ARG_TYPE_STRING},
+    {"right-alt", 0, 0, N_("press right alt"), "[on|off]", ARG_TYPE_STRING},
+    {"left-ctrl", 0, 0, N_("press left ctrl"), "[on|off]", ARG_TYPE_STRING},
+    {"right-ctrl", 0, 0, N_("press right ctrl"), "[on|off]", ARG_TYPE_STRING},
+    {"no-led", 0, 0, N_("don't update LED state"), 0, 0},
+    {0, 0, 0, 0, 0, 0}
+  };
+static int simple_flag_offsets[] 
+= {5, 6, 4, 7, 11, 1, 0, 10, 13, 14, 12, 15, 9, 3, 8, 2};
+
+static grub_uint32_t andmask = 0xffffffff, ormask = 0;
+
+struct 
+keysym
+{
+  const char *unshifted_name;		/* the name in unshifted state */
+  const char *shifted_name;		/* the name in shifted state */
+  unsigned char unshifted_ascii;	/* the ascii code in unshifted state */
+  unsigned char shifted_ascii;		/* the ascii code in shifted state */
+  unsigned char keycode;		/* keyboard scancode */
+};
+
+/* The table for key symbols. If the "shifted" member of an entry is
+   NULL, the entry does not have shifted state. Copied from GRUB Legacy setkey fuction  */
+static struct keysym keysym_table[] =
+{
+  {"escape",		0,		0x1b,	0,	0x01},
+  {"1",			"exclam",	'1',	'!',	0x02},
+  {"2",			"at",		'2',	'@',	0x03},
+  {"3",			"numbersign",	'3',	'#',	0x04},
+  {"4",			"dollar",	'4',	'$',	0x05},
+  {"5",			"percent",	'5',	'%',	0x06},
+  {"6",			"caret",	'6',	'^',	0x07},
+  {"7",			"ampersand",	'7',	'&',	0x08},
+  {"8",			"asterisk",	'8',	'*',	0x09},
+  {"9",			"parenleft",	'9',	'(',	0x0a},
+  {"0",			"parenright",	'0',	')',	0x0b},
+  {"minus",		"underscore",	'-',	'_',	0x0c},
+  {"equal",		"plus",		'=',	'+',	0x0d},
+  {"backspace",		0,		'\b',	0,	0x0e},
+  {"tab",		0,		'\t',	0,	0x0f},
+  {"q",			"Q",		'q',	'Q',	0x10},
+  {"w",			"W",		'w',	'W',	0x11},
+  {"e",			"E",		'e',	'E',	0x12},
+  {"r",			"R",		'r',	'R',	0x13},
+  {"t",			"T",		't',	'T',	0x14},
+  {"y",			"Y",		'y',	'Y',	0x15},
+  {"u",			"U",		'u',	'U',	0x16},
+  {"i",			"I",		'i',	'I',	0x17},
+  {"o",			"O",		'o',	'O',	0x18},
+  {"p",			"P",		'p',	'P',	0x19},
+  {"bracketleft",	"braceleft",	'[',	'{',	0x1a},
+  {"bracketright",	"braceright",	']',	'}',	0x1b},
+  {"enter",		0,		'\r',	0,	0x1c},
+  {"control",		0,		0,	0,	0x1d},
+  {"a",			"A",		'a',	'A',	0x1e},
+  {"s",			"S",		's',	'S',	0x1f},
+  {"d",			"D",		'd',	'D',	0x20},
+  {"f",			"F",		'f',	'F',	0x21},
+  {"g",			"G",		'g',	'G',	0x22},
+  {"h",			"H",		'h',	'H',	0x23},
+  {"j",			"J",		'j',	'J',	0x24},
+  {"k",			"K",		'k',	'K',	0x25},
+  {"l",			"L",		'l',	'L',	0x26},
+  {"semicolon",		"colon",	';',	':',	0x27},
+  {"quote",		"doublequote",	'\'',	'"',	0x28},
+  {"backquote",		"tilde",	'`',	'~',	0x29},
+  {"shift",		0,		0,	0,	0x2a},
+  {"backslash",		"bar",		'\\',	'|',	0x2b},
+  {"z",			"Z",		'z',	'Z',	0x2c},
+  {"x",			"X",		'x',	'X',	0x2d},
+  {"c",			"C",		'c',	'C',	0x2e},
+  {"v",			"V",		'v',	'V',	0x2f},
+  {"b",			"B",		'b',	'B',	0x30},
+  {"n",			"N",		'n',	'N',	0x31},
+  {"m",			"M",		'm',	'M',	0x32},
+  {"comma",		"less",		',',	'<',	0x33},
+  {"period",		"greater",	'.',	'>',	0x34},
+  {"slash",		"question",	'/',	'?',	0x35},
+  {"rshift",		0,		0,	0,	0x36},
+  {"numasterisk",		0,		'*',	0,	0x37},
+  {"alt",		0,		0,	0,	0x38},
+  {"space",		0,		' ',	0,	0x39},
+  {"capslock",		0,		0,	0,	0x3a},
+  {"F1",		0,		0,	0,	0x3b},
+  {"F2",		0,		0,	0,	0x3c},
+  {"F3",		0,		0,	0,	0x3d},
+  {"F4",		0,		0,	0,	0x3e},
+  {"F5",		0,		0,	0,	0x3f},
+  {"F6",	 	0,		0,	0,	0x40},
+  {"F7",		0,		0,	0,	0x41},
+  {"F8",		0,		0,	0,	0x42},
+  {"F9",		0,		0,	0,	0x43},
+  {"F10",		0,		0,	0,	0x44},
+  {"num7",		"numhome",		'7',	0,	0x47},
+  {"num8",		"numup",		'8',	0,	0x48},
+  {"num9",		"numpgup",		'9',	0,	0x49},
+  {"numminus",		0,		'-',	0,	0x4a},
+  {"num4",		"numleft",		'4',	0,	0x4b},
+  {"num5",		"numcenter",		'5',	0,	0x4c},
+  {"num6",		"numright",		'6',	0,	0x4d},
+  {"numplus",		0,		'-',	0,	0x4e},
+  {"num1",		"numend",		'1',	0,	0x4f},
+  {"num2",		"numdown",		'2',	0,	0x50},
+  {"num3",		"numpgdown",		'3',	0,	0x51},
+  {"num0",		"numinsert",		'0',	0,	0x52},
+  {"numperiod",	"numdelete", 0,	0x7f,		0x53},
+  {"F11",		0,		0,	0,	0x57},
+  {"F12",		0,		0,	0,	0x58},
+  {"numenter",		0,		'\r',	0,	0xe0},
+  {"numslash",		0,		'/',	0,	0xe0},
+  {"delete",		0,		0x7f,	0,	0xe0},
+  {"insert",		0,		0xe0,	0,	0x52},
+  {"home",		0,		0xe0,	0,	0x47},
+  {"end",		0,		0xe0,	0,	0x4f},
+  {"pgdown",		0,		0xe0,	0,	0x51},
+  {"pgup",		0,		0xe0,	0,	0x49},
+  {"down",		0,		0xe0,	0,	0x50},
+  {"up",		0,		0xe0,	0,	0x48},
+  {"left",		0,		0xe0,	0,	0x4b},
+  {"right",		0,		0xe0,	0,	0x4d}
+};
+
+/* Set a simple flag in flags variable  
+   OUTOFFSET - offset of flag in FLAGS,
+   OP - action id
+*/
+static void
+grub_sendkey_set_simple_flag (int outoffset, int op)
+{      
+  if (op == 2)
+    {
+      andmask |= (1 << outoffset);
+      ormask &= ~(1 << outoffset);
+    }
+  else
+    {
+      andmask &= (~(1 << outoffset));
+      if (op == 1)
+	ormask |= (1 << outoffset);
+      else
+	ormask &= ~(1 << outoffset);
+    }
+}
+
+static int
+grub_sendkey_parse_op (struct grub_arg_list state)
+{
+  if (! state.set)
+    return 2;
+
+  if (grub_strcmp (state.arg, "off") == 0 || grub_strcmp (state.arg, "0") == 0 
+      || grub_strcmp (state.arg, "unpress") == 0)
+    return 0;
+
+  if (grub_strcmp (state.arg, "on")  == 0 || grub_strcmp (state.arg, "1")  == 0
+      || grub_strcmp (state.arg, "press") == 0)
+    return 1;
+
+  return 2;
+}
+
+static grub_uint32_t oldflags;
+
+static grub_err_t
+grub_sendkey_postboot (void)
+{
+  /* For convention: pointer to flags.  */
+  grub_uint32_t *flags = (grub_uint32_t *) 0x417;
+
+  *flags = oldflags;
+
+  *((char *) 0x41a) = 0x1e;
+  *((char *) 0x41c) = 0x1e;
+
+  return GRUB_ERR_NONE;
+}
+
+/* Set keyboard buffer to our sendkey  */
+static grub_err_t
+grub_sendkey_preboot (int noret __attribute__ ((unused)))
+{
+  /* For convention: pointer to flags.  */
+  grub_uint32_t *flags = (grub_uint32_t *) 0x417;
+
+  oldflags = *flags;
+  
+  /* Set the sendkey.  */
+  *((char *) 0x41a) = 0x1e;
+  *((char *) 0x41c) = keylen + 0x1e;
+  grub_memcpy ((char *) 0x41e, sendkey, 0x20);
+
+  /* Transform "any ctrl" to "right ctrl" flag.  */
+  if (*flags & (1 << 8))
+    *flags &= ~(1 << 2);
+
+  /* Transform "any alt" to "right alt" flag.  */
+  if (*flags & (1 << 9))
+    *flags &= ~(1 << 3);
+  
+  *flags = (*flags & andmask) | ormask;
+
+  /* Transform "right ctrl" to "any ctrl" flag.  */
+  if (*flags & (1 << 8))
+    *flags |= (1 << 2);
+
+  /* Transform "right alt" to "any alt" flag.  */
+  if (*flags & (1 << 9))
+    *flags |= (1 << 3);
+
+  /* Write new LED state  */
+  if (!noled)
+    {
+      int value = 0;
+      int failed;
+      /* Try 5 times  */
+      for (failed = 0; failed < 5; failed++)
+	{
+	  value = 0;
+	  /* Send command change LEDs  */
+	  grub_outb (0xed, 0x60);
+
+	  /* Wait */
+	  do
+	    value = grub_inb (0x60);
+	  while ((value != 0xfa) && (value != 0xfe));
+
+	  if (value == 0xfa)
+	    {
+	      /* Set new LEDs*/
+	      grub_outb ((*flags >> 4) & 7, 0x60);
+	      break;
+	    }
+	}
+    }
+  return GRUB_ERR_NONE;
+}
+
+/* Helper for grub_cmd_sendkey.  */
+static int
+find_key_code (char *key)
+{
+  unsigned i;
+
+  for (i = 0; i < ARRAY_SIZE(keysym_table); i++)
+    {
+      if (keysym_table[i].unshifted_name 
+	  && grub_strcmp (key, keysym_table[i].unshifted_name) == 0)
+	return keysym_table[i].keycode;
+      else if (keysym_table[i].shifted_name 
+	       && grub_strcmp (key, keysym_table[i].shifted_name) == 0)
+	return keysym_table[i].keycode;
+    }
+
+  return 0;
+}
+
+/* Helper for grub_cmd_sendkey.  */
+static int
+find_ascii_code (char *key)
+{
+  unsigned i;
+
+  for (i = 0; i < ARRAY_SIZE(keysym_table); i++)
+    {
+      if (keysym_table[i].unshifted_name 
+	  && grub_strcmp (key, keysym_table[i].unshifted_name) == 0)
+	return keysym_table[i].unshifted_ascii;
+      else if (keysym_table[i].shifted_name 
+	       && grub_strcmp (key, keysym_table[i].shifted_name) == 0)
+	return keysym_table[i].shifted_ascii;
+    }
+
+  return 0;
+}
+
+static grub_err_t
+grub_cmd_sendkey (grub_extcmd_context_t ctxt, int argc, char **args)
+{
+  struct grub_arg_list *state = ctxt->state;
+
+  andmask = 0xffffffff;
+  ormask = 0;
+
+  {
+    int i;
+
+    keylen = 0;
+
+    for (i = 0; i < argc && keylen < 0x20; i++)
+      {
+	int key_code;
+	
+	key_code = find_key_code (args[i]);
+	if (key_code)
+	  {
+	    sendkey[keylen++] = find_ascii_code (args[i]);
+	    sendkey[keylen++] = key_code;
+	  }
+      }
+  }
+
+  {
+    unsigned i;
+    for (i = 0; i < ARRAY_SIZE(simple_flag_offsets); i++)
+      grub_sendkey_set_simple_flag (simple_flag_offsets[i], 
+				    grub_sendkey_parse_op(state[i]));
+  }
+
+  /* Set noled. */
+  noled = (state[ARRAY_SIZE(simple_flag_offsets)].set);
+
+  return GRUB_ERR_NONE;
+}
+
+static grub_extcmd_t cmd;
+static struct grub_preboot *preboot_hook;
+
+GRUB_MOD_INIT (sendkey)
+{
+  cmd = grub_register_extcmd ("sendkey", grub_cmd_sendkey, 0,
+			      N_("[KEYSTROKE1] [KEYSTROKE2] ..."),
+			      /* TRANSLATORS: It can emulate multiple
+				 keypresses.  */
+			      N_("Emulate a keystroke sequence"), options);
+
+  preboot_hook 
+    = grub_loader_register_preboot_hook (grub_sendkey_preboot, 
+					 grub_sendkey_postboot,
+					 GRUB_LOADER_PREBOOT_HOOK_PRIO_CONSOLE);
+}
+
+GRUB_MOD_FINI (sendkey)
+{
+  grub_unregister_extcmd (cmd);
+  grub_loader_unregister_preboot_hook (preboot_hook);
+}
diff --git a/grub-core/commands/i386/pc/smbios.c b/grub-core/commands/i386/pc/smbios.c
new file mode 100644
index 0000000..069d663
--- /dev/null
+++ b/grub-core/commands/i386/pc/smbios.c
@@ -0,0 +1,52 @@
+/* smbios.c - get smbios tables. */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2019  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/acpi.h>
+#include <grub/smbios.h>
+#include <grub/misc.h>
+
+struct grub_smbios_eps *
+grub_machine_smbios_get_eps (void)
+{
+  grub_uint8_t *ptr;
+
+  grub_dprintf ("smbios", "Looking for SMBIOS EPS. Scanning BIOS\n");
+
+  for (ptr = (grub_uint8_t *) 0xf0000; ptr < (grub_uint8_t *) 0x100000; ptr += 16)
+    if (grub_memcmp (ptr, "_SM_", 4) == 0
+	&& grub_byte_checksum (ptr, sizeof (struct grub_smbios_eps)) == 0)
+      return (struct grub_smbios_eps *) ptr;
+
+  return 0;
+}
+
+struct grub_smbios_eps3 *
+grub_machine_smbios_get_eps3 (void)
+{
+  grub_uint8_t *ptr;
+
+  grub_dprintf ("smbios", "Looking for SMBIOS3 EPS. Scanning BIOS\n");
+
+  for (ptr = (grub_uint8_t *) 0xf0000; ptr < (grub_uint8_t *) 0x100000; ptr += 16)
+    if (grub_memcmp (ptr, "_SM3_", 5) == 0
+	&& grub_byte_checksum (ptr, sizeof (struct grub_smbios_eps3)) == 0)
+      return (struct grub_smbios_eps3 *) ptr;
+
+  return 0;
+}
diff --git a/grub-core/commands/i386/rdmsr.c b/grub-core/commands/i386/rdmsr.c
new file mode 100644
index 0000000..46c4346
--- /dev/null
+++ b/grub-core/commands/i386/rdmsr.c
@@ -0,0 +1,102 @@
+/* rdmsr.c - Read CPU model-specific registers. */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2019  Free Software Foundation, Inc.
+ *  Based on gcc/gcc/config/i386/driver-i386.c
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/env.h>
+#include <grub/command.h>
+#include <grub/extcmd.h>
+#include <grub/i18n.h>
+#include <grub/i386/cpuid.h>
+#include <grub/i386/rdmsr.h>
+
+GRUB_MOD_LICENSE("GPLv3+");
+
+static grub_extcmd_t cmd_read;
+
+static const struct grub_arg_option options[] =
+{
+  {0, 'v', 0, N_("Save read value into variable VARNAME."),
+  N_("VARNAME"), ARG_TYPE_STRING},
+  {0, 0, 0, 0, 0, 0}
+};
+
+static grub_err_t
+grub_cmd_msr_read (grub_extcmd_context_t ctxt, int argc, char **argv)
+{
+  grub_uint32_t manufacturer[3], max_cpuid, a, b, c, features, addr;
+  grub_uint64_t value;
+  const char *ptr;
+  char buf[sizeof("1122334455667788")];
+
+  /*
+   * The CPUID instruction should be used to determine whether MSRs
+   * are supported. (CPUID.01H:EDX[5] = 1)
+   */
+  if (! grub_cpu_is_cpuid_supported ())
+    return grub_error (GRUB_ERR_BUG, N_("unsupported instruction"));
+
+  grub_cpuid (0, max_cpuid, manufacturer[0], manufacturer[2], manufacturer[1]);
+
+  if (max_cpuid < 1)
+    return grub_error (GRUB_ERR_BUG, N_("unsupported instruction"));
+
+  grub_cpuid (1, a, b, c, features);
+
+  if (!(features & (1 << 5)))
+    return grub_error (GRUB_ERR_BUG, N_("unsupported instruction"));
+
+  if (argc != 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected"));
+
+  grub_errno = GRUB_ERR_NONE;
+  ptr = argv[0];
+  addr = grub_strtoul (ptr, &ptr, 0);
+
+  if (grub_errno != GRUB_ERR_NONE)
+    return grub_errno;
+  if (*ptr != '\0')
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("invalid argument"));
+
+  value = grub_msr_read (addr);
+
+  if (ctxt->state[0].set)
+    {
+      grub_snprintf (buf, sizeof(buf), "%llx", (unsigned long long) value);
+      grub_env_set (ctxt->state[0].arg, buf);
+    }
+  else
+    grub_printf ("0x%llx\n", (unsigned long long) value);
+
+  return GRUB_ERR_NONE;
+}
+
+GRUB_MOD_INIT(rdmsr)
+{
+  cmd_read = grub_register_extcmd ("rdmsr", grub_cmd_msr_read, 0, N_("ADDR"),
+				   N_("Read a CPU model specific register."),
+				   options);
+}
+
+GRUB_MOD_FINI(rdmsr)
+{
+  grub_unregister_extcmd (cmd_read);
+}
diff --git a/grub-core/commands/i386/wrmsr.c b/grub-core/commands/i386/wrmsr.c
new file mode 100644
index 0000000..1b143b8
--- /dev/null
+++ b/grub-core/commands/i386/wrmsr.c
@@ -0,0 +1,94 @@
+/* wrmsr.c - Write CPU model-specific registers. */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2019  Free Software Foundation, Inc.
+ *  Based on gcc/gcc/config/i386/driver-i386.c
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/env.h>
+#include <grub/command.h>
+#include <grub/extcmd.h>
+#include <grub/lockdown.h>
+#include <grub/i18n.h>
+#include <grub/i386/cpuid.h>
+#include <grub/i386/wrmsr.h>
+
+GRUB_MOD_LICENSE("GPLv3+");
+
+static grub_command_t cmd_write;
+
+static grub_err_t
+grub_cmd_msr_write (grub_command_t cmd __attribute__ ((unused)), int argc, char **argv)
+{
+  grub_uint32_t manufacturer[3], max_cpuid, a, b, c, features, addr;
+  grub_uint64_t value;
+  const char *ptr;
+
+  /*
+   * The CPUID instruction should be used to determine whether MSRs
+   * are supported. (CPUID.01H:EDX[5] = 1)
+   */
+  if (!grub_cpu_is_cpuid_supported ())
+    return grub_error (GRUB_ERR_BUG, N_("unsupported instruction"));
+
+  grub_cpuid (0, max_cpuid, manufacturer[0], manufacturer[2], manufacturer[1]);
+
+  if (max_cpuid < 1)
+    return grub_error (GRUB_ERR_BUG, N_("unsupported instruction"));
+
+  grub_cpuid (1, a, b, c, features);
+
+  if (!(features & (1 << 5)))
+    return grub_error (GRUB_ERR_BUG, N_("unsupported instruction"));
+
+  if (argc != 2)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("two arguments expected"));
+
+  grub_errno = GRUB_ERR_NONE;
+  ptr = argv[0];
+  addr = grub_strtoul (ptr, &ptr, 0);
+
+  if (grub_errno != GRUB_ERR_NONE)
+    return grub_errno;
+  if (*ptr != '\0')
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("invalid argument"));
+
+  ptr = argv[1];
+  value = grub_strtoull (ptr, &ptr, 0);
+
+  if (grub_errno != GRUB_ERR_NONE)
+    return grub_errno;
+  if (*ptr != '\0')
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("invalid argument"));
+
+  grub_msr_write (addr, value);
+
+  return GRUB_ERR_NONE;
+}
+
+GRUB_MOD_INIT(wrmsr)
+{
+  cmd_write = grub_register_command_lockdown ("wrmsr", grub_cmd_msr_write, N_("ADDR VALUE"),
+                                              N_("Write a value to a CPU model specific register."));
+}
+
+GRUB_MOD_FINI(wrmsr)
+{
+  grub_unregister_command (cmd_write);
+}
diff --git a/grub-core/commands/ieee1275/suspend.c b/grub-core/commands/ieee1275/suspend.c
new file mode 100644
index 0000000..b505485
--- /dev/null
+++ b/grub-core/commands/ieee1275/suspend.c
@@ -0,0 +1,51 @@
+/* suspend.c - command to suspend GRUB and return to Open Firmware  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2005,2007  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/term.h>
+#include <grub/ieee1275/ieee1275.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_err_t
+grub_cmd_suspend (grub_command_t cmd __attribute__ ((unused)),
+		  int argc __attribute__ ((unused)),
+		  char **args __attribute__ ((unused)))
+{
+  grub_puts_ (N_("Run `go' to resume GRUB."));
+  grub_ieee1275_enter ();
+  grub_cls ();
+  return 0;
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(ieee1275_suspend)
+{
+  cmd = grub_register_command ("suspend", grub_cmd_suspend,
+			       0, N_("Return to IEEE1275 prompt."));
+}
+
+GRUB_MOD_FINI(ieee1275_suspend)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/iorw.c b/grub-core/commands/iorw.c
new file mode 100644
index 0000000..584baec
--- /dev/null
+++ b/grub-core/commands/iorw.c
@@ -0,0 +1,156 @@
+/* memrw.c - command to read / write physical memory  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/extcmd.h>
+#include <grub/env.h>
+#include <grub/cpu/io.h>
+#include <grub/i18n.h>
+#include <grub/lockdown.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_extcmd_t cmd_read_byte, cmd_read_word, cmd_read_dword;
+static grub_command_t cmd_write_byte, cmd_write_word, cmd_write_dword;
+
+static const struct grub_arg_option options[] =
+  {
+    {0, 'v', 0, N_("Save read value into variable VARNAME."),
+     N_("VARNAME"), ARG_TYPE_STRING},
+    {0, 0, 0, 0, 0, 0}
+  };
+
+
+static grub_err_t
+grub_cmd_read (grub_extcmd_context_t ctxt, int argc, char **argv)
+{
+  grub_port_t addr;
+  grub_uint32_t value = 0;
+
+  if (argc != 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected"));
+
+  addr = grub_strtoul (argv[0], 0, 0);
+  switch (ctxt->extcmd->cmd->name[sizeof ("in") - 1])
+    {
+    case 'l':
+      value = grub_inl (addr);
+      break;
+
+    case 'w':
+      value = grub_inw (addr);
+      break;
+
+    case 'b':
+      value = grub_inb (addr);
+      break;
+    }
+
+  if (ctxt->state[0].set)
+    {
+      char buf[sizeof ("XXXXXXXX")];
+      grub_snprintf (buf, sizeof (buf), "%x", value);
+      grub_env_set (ctxt->state[0].arg, buf);
+    }
+  else
+    grub_printf ("0x%x\n", value);
+
+  return 0;
+}
+
+static grub_err_t
+grub_cmd_write (grub_command_t cmd, int argc, char **argv)
+{
+  grub_port_t addr;
+  grub_uint32_t value;
+  grub_uint32_t mask = 0xffffffff;
+
+  if (argc != 2 && argc != 3)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("two arguments expected"));
+
+  addr = grub_strtoul (argv[0], 0, 0);
+  value = grub_strtoul (argv[1], 0, 0);
+  if (argc == 3)
+    mask = grub_strtoul (argv[2], 0, 0);
+  value &= mask;
+  switch (cmd->name[sizeof ("out") - 1])
+    {
+    case 'l':
+      if (mask != 0xffffffff)
+	grub_outl ((grub_inl (addr) & ~mask) | value, addr);
+      else
+	grub_outl (value, addr);
+      break;
+
+    case 'w':
+      if ((mask & 0xffff) != 0xffff)
+	grub_outw ((grub_inw (addr) & ~mask) | value, addr);
+      else
+	grub_outw (value, addr);
+      break;
+
+    case 'b':
+      if ((mask & 0xff) != 0xff)
+	grub_outb ((grub_inb (addr) & ~mask) | value, addr);
+      else
+	grub_outb (value, addr);
+      break;
+    }
+
+  return 0;
+}
+
+GRUB_MOD_INIT(memrw)
+{
+  cmd_read_byte =
+    grub_register_extcmd ("inb", grub_cmd_read, 0,
+			  N_("PORT"), N_("Read 8-bit value from PORT."),
+			  options);
+  cmd_read_word =
+    grub_register_extcmd ("inw", grub_cmd_read, 0,
+			  N_("PORT"), N_("Read 16-bit value from PORT."),
+			  options);
+  cmd_read_dword =
+    grub_register_extcmd ("inl", grub_cmd_read, 0,
+			  N_("PORT"), N_("Read 32-bit value from PORT."),
+			  options);
+  cmd_write_byte =
+    grub_register_command_lockdown ("outb", grub_cmd_write,
+                                    N_("PORT VALUE [MASK]"),
+                                    N_("Write 8-bit VALUE to PORT."));
+  cmd_write_word =
+    grub_register_command_lockdown ("outw", grub_cmd_write,
+                                    N_("PORT VALUE [MASK]"),
+                                    N_("Write 16-bit VALUE to PORT."));
+  cmd_write_dword =
+    grub_register_command_lockdown ("outl", grub_cmd_write,
+                                    N_("ADDR VALUE [MASK]"),
+                                    N_("Write 32-bit VALUE to PORT."));
+}
+
+GRUB_MOD_FINI(memrw)
+{
+  grub_unregister_extcmd (cmd_read_byte);
+  grub_unregister_extcmd (cmd_read_word);
+  grub_unregister_extcmd (cmd_read_dword);
+  grub_unregister_command (cmd_write_byte);
+  grub_unregister_command (cmd_write_word);
+  grub_unregister_command (cmd_write_dword);
+}
diff --git a/grub-core/commands/keylayouts.c b/grub-core/commands/keylayouts.c
new file mode 100644
index 0000000..c05d612
--- /dev/null
+++ b/grub-core/commands/keylayouts.c
@@ -0,0 +1,307 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2002,2003,2005,2007,2008,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/term.h>
+#include <grub/err.h>
+#include <grub/mm.h>
+#include <grub/misc.h>
+#include <grub/env.h>
+#include <grub/time.h>
+#include <grub/dl.h>
+#include <grub/keyboard_layouts.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+#include <grub/file.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static struct grub_keyboard_layout layout_us = {
+  .keyboard_map = {
+    /* Keyboard errors. Handled by driver.  */
+    /* 0x00 */   0,   0,   0,   0,
+
+    /* 0x04 */ 'a',  'b',  'c',  'd', 
+    /* 0x08 */ 'e',  'f',  'g',  'h',  'i', 'j', 'k', 'l',
+    /* 0x10 */ 'm',  'n',  'o',  'p',  'q', 'r', 's', 't',
+    /* 0x18 */ 'u',  'v',  'w',  'x',  'y', 'z', '1', '2',
+    /* 0x20 */ '3',  '4',  '5',  '6',  '7', '8', '9', '0',
+    /* 0x28 */ '\n', GRUB_TERM_ESC, GRUB_TERM_BACKSPACE, GRUB_TERM_TAB, ' ', '-', '=', '[',
+    /* According to usage table 0x31 should be mapped to '/'
+       but testing with real keyboard shows that 0x32 is remapped to '/'.
+       Map 0x31 to 0. 
+    */
+    /* 0x30 */ ']',   0,   '\\', ';', '\'', '`', ',', '.',
+    /* 0x39 is CapsLock. Handled by driver.  */
+    /* 0x38 */ '/',   0,   GRUB_TERM_KEY_F1, GRUB_TERM_KEY_F2, 
+    /* 0x3c */ GRUB_TERM_KEY_F3,     GRUB_TERM_KEY_F4,
+    /* 0x3e */ GRUB_TERM_KEY_F5,     GRUB_TERM_KEY_F6,
+    /* 0x40 */ GRUB_TERM_KEY_F7,     GRUB_TERM_KEY_F8,
+    /* 0x42 */ GRUB_TERM_KEY_F9,     GRUB_TERM_KEY_F10,
+    /* 0x44 */ GRUB_TERM_KEY_F11,    GRUB_TERM_KEY_F12,
+    /* PrtScr and ScrollLock. Not handled yet.  */
+    /* 0x46 */ 0,                    0,
+    /* 0x48 is Pause. Not handled yet.  */
+    /* 0x48 */ 0,                    GRUB_TERM_KEY_INSERT, 
+    /* 0x4a */ GRUB_TERM_KEY_HOME,   GRUB_TERM_KEY_PPAGE,
+    /* 0x4c */ GRUB_TERM_KEY_DC,     GRUB_TERM_KEY_END,
+    /* 0x4e */ GRUB_TERM_KEY_NPAGE,  GRUB_TERM_KEY_RIGHT,
+    /* 0x50 */ GRUB_TERM_KEY_LEFT,   GRUB_TERM_KEY_DOWN,
+    /* 0x53 is NumLock. Handled by driver.  */
+    /* 0x52 */ GRUB_TERM_KEY_UP,     0,
+    /* 0x54 */ '/',                  '*', 
+    /* 0x56 */ '-',                  '+',
+    /* 0x58 */ '\n',                 GRUB_TERM_KEY_END, 
+    /* 0x5a */ GRUB_TERM_KEY_DOWN,   GRUB_TERM_KEY_NPAGE,
+    /* 0x5c */ GRUB_TERM_KEY_LEFT,   GRUB_TERM_KEY_CENTER,
+    /* 0x5e */ GRUB_TERM_KEY_RIGHT,  GRUB_TERM_KEY_HOME,
+    /* 0x60 */ GRUB_TERM_KEY_UP,     GRUB_TERM_KEY_PPAGE,
+    /* 0x62 */ GRUB_TERM_KEY_INSERT, GRUB_TERM_KEY_DC,
+    /* 0x64 */ '\\'
+  },
+  .keyboard_map_shift = {
+    /* Keyboard errors. Handled by driver.  */
+    /* 0x00 */   0,   0,   0,   0,
+
+    /* 0x04 */ 'A',  'B',  'C',  'D', 
+    /* 0x08 */ 'E',  'F',  'G',  'H',  'I', 'J', 'K', 'L',
+    /* 0x10 */ 'M',  'N',  'O',  'P',  'Q', 'R', 'S', 'T',
+    /* 0x18 */ 'U',  'V',  'W',  'X',  'Y', 'Z', '!', '@',
+    /* 0x20 */ '#',  '$',  '%',  '^',  '&', '*', '(', ')',
+    /* 0x28 */ '\n' | GRUB_TERM_SHIFT, GRUB_TERM_ESC | GRUB_TERM_SHIFT,
+    /* 0x2a */ GRUB_TERM_BACKSPACE | GRUB_TERM_SHIFT, GRUB_TERM_TAB | GRUB_TERM_SHIFT,
+    /* 0x2c */ ' '  | GRUB_TERM_SHIFT,  '_', '+', '{',
+    /* According to usage table 0x31 should be mapped to '/'
+       but testing with real keyboard shows that 0x32 is remapped to '/'.
+       Map 0x31 to 0. 
+    */
+    /* 0x30 */ '}',  0,    '|',  ':',  '"', '~', '<', '>',
+    /* 0x39 is CapsLock. Handled by driver.  */
+    /* 0x38 */ '?',  0,
+    /* 0x3a */ GRUB_TERM_KEY_F1 | GRUB_TERM_SHIFT,
+    /* 0x3b */ GRUB_TERM_KEY_F2 | GRUB_TERM_SHIFT, 
+    /* 0x3c */ GRUB_TERM_KEY_F3 | GRUB_TERM_SHIFT, 
+    /* 0x3d */ GRUB_TERM_KEY_F4 | GRUB_TERM_SHIFT, 
+    /* 0x3e */ GRUB_TERM_KEY_F5 | GRUB_TERM_SHIFT, 
+    /* 0x3f */ GRUB_TERM_KEY_F6 | GRUB_TERM_SHIFT, 
+    /* 0x40 */ GRUB_TERM_KEY_F7 | GRUB_TERM_SHIFT, 
+    /* 0x41 */ GRUB_TERM_KEY_F8 | GRUB_TERM_SHIFT, 
+    /* 0x42 */ GRUB_TERM_KEY_F9 | GRUB_TERM_SHIFT, 
+    /* 0x43 */ GRUB_TERM_KEY_F10 | GRUB_TERM_SHIFT, 
+    /* 0x44 */ GRUB_TERM_KEY_F11 | GRUB_TERM_SHIFT, 
+    /* 0x45 */ GRUB_TERM_KEY_F12 | GRUB_TERM_SHIFT, 
+    /* PrtScr and ScrollLock. Not handled yet.  */
+    /* 0x46 */ 0,                    0,
+    /* 0x48 is Pause. Not handled yet.  */
+    /* 0x48 */ 0,                    GRUB_TERM_KEY_INSERT | GRUB_TERM_SHIFT, 
+    /* 0x4a */ GRUB_TERM_KEY_HOME | GRUB_TERM_SHIFT,
+    /* 0x4b */ GRUB_TERM_KEY_PPAGE | GRUB_TERM_SHIFT,
+    /* 0x4c */ GRUB_TERM_KEY_DC | GRUB_TERM_SHIFT,
+    /* 0x4d */ GRUB_TERM_KEY_END | GRUB_TERM_SHIFT,
+    /* 0x4e */ GRUB_TERM_KEY_NPAGE | GRUB_TERM_SHIFT,
+    /* 0x4f */ GRUB_TERM_KEY_RIGHT | GRUB_TERM_SHIFT,
+    /* 0x50 */ GRUB_TERM_KEY_LEFT | GRUB_TERM_SHIFT,
+    /* 0x51 */ GRUB_TERM_KEY_DOWN | GRUB_TERM_SHIFT,
+    /* 0x53 is NumLock. Handled by driver.  */
+    /* 0x52 */ GRUB_TERM_KEY_UP | GRUB_TERM_SHIFT,     0,
+    /* 0x54 */ '/',                    '*', 
+    /* 0x56 */ '-',                    '+',
+    /* 0x58 */ '\n' | GRUB_TERM_SHIFT, '1', '2', '3', '4', '5','6', '7',
+    /* 0x60 */ '8', '9', '0', '.', '|'
+  }
+};
+
+static struct grub_keyboard_layout *grub_current_layout = &layout_us;
+
+static int
+map_key_core (int code, int status, int *alt_gr_consumed)
+{
+  *alt_gr_consumed = 0;
+
+  if (code >= GRUB_KEYBOARD_LAYOUTS_ARRAY_SIZE)
+    return 0;
+
+  if (status & GRUB_TERM_STATUS_RALT)
+    {
+      if (status & (GRUB_TERM_STATUS_LSHIFT | GRUB_TERM_STATUS_RSHIFT))
+	{
+	  if (grub_current_layout->keyboard_map_shift_l3[code])
+	    {
+	      *alt_gr_consumed = 1;
+	      return grub_current_layout->keyboard_map_shift_l3[code];
+	    }
+	}
+      else if (grub_current_layout->keyboard_map_l3[code])
+	{
+	  *alt_gr_consumed = 1;
+	  return grub_current_layout->keyboard_map_l3[code];  
+	}
+    }
+  if (status & (GRUB_TERM_STATUS_LSHIFT | GRUB_TERM_STATUS_RSHIFT))
+    return grub_current_layout->keyboard_map_shift[code];
+  else
+    return grub_current_layout->keyboard_map[code];
+}
+
+unsigned
+grub_term_map_key (grub_keyboard_key_t code, int status)
+{
+  int alt_gr_consumed = 0;
+  int key;
+
+  if (code >= 0x59 && code <= 0x63 && (status & GRUB_TERM_STATUS_NUM))
+    {
+      if (status & (GRUB_TERM_STATUS_RSHIFT | GRUB_TERM_STATUS_LSHIFT))
+	status &= ~(GRUB_TERM_STATUS_RSHIFT | GRUB_TERM_STATUS_LSHIFT);
+      else
+	status |= GRUB_TERM_STATUS_RSHIFT;
+    }
+
+  key = map_key_core (code, status, &alt_gr_consumed);
+  
+  if (key == 0 || key == GRUB_TERM_SHIFT) {
+    grub_printf ("Unknown key 0x%x detected\n", code);
+    return GRUB_TERM_NO_KEY;
+  }
+  
+  if (status & GRUB_TERM_STATUS_CAPS)
+    {
+      if ((key >= 'a') && (key <= 'z'))
+	key += 'A' - 'a';
+      else if ((key >= 'A') && (key <= 'Z'))
+	key += 'a' - 'A';
+    }
+  
+  if ((status & GRUB_TERM_STATUS_LALT) || 
+      ((status & GRUB_TERM_STATUS_RALT) && !alt_gr_consumed))
+    key |= GRUB_TERM_ALT;
+  if (status & (GRUB_TERM_STATUS_LCTRL | GRUB_TERM_STATUS_RCTRL))
+    key |= GRUB_TERM_CTRL;
+
+  return key;
+}
+
+static grub_err_t
+grub_cmd_keymap (struct grub_command *cmd __attribute__ ((unused)),
+		 int argc, char *argv[])
+{
+  char *filename;
+  grub_file_t file;
+  grub_uint32_t version;
+  grub_uint8_t magic[GRUB_KEYBOARD_LAYOUTS_FILEMAGIC_SIZE];
+  struct grub_keyboard_layout *newmap = NULL;
+  unsigned i;
+
+  if (argc < 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "file or layout name required");
+  if (argv[0][0] != '(' && argv[0][0] != '/' && argv[0][0] != '+')
+    {
+      const char *prefix = grub_env_get ("prefix");
+      if (!prefix)
+	return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("variable `%s' isn't set"), "prefix");	
+      filename = grub_xasprintf ("%s/layouts/%s.gkb", prefix, argv[0]);
+      if (!filename)
+	return grub_errno;
+    }
+  else
+    filename = argv[0];
+
+  file = grub_file_open (filename, GRUB_FILE_TYPE_KEYBOARD_LAYOUT);
+  if (! file)
+    goto fail;
+
+  if (grub_file_read (file, magic, sizeof (magic)) != sizeof (magic))
+    {
+      if (!grub_errno)
+	grub_error (GRUB_ERR_BAD_ARGUMENT, N_("premature end of file %s"),
+		    filename);
+      goto fail;
+    }
+
+  if (grub_memcmp (magic, GRUB_KEYBOARD_LAYOUTS_FILEMAGIC,
+		   GRUB_KEYBOARD_LAYOUTS_FILEMAGIC_SIZE) != 0)
+    {
+      grub_error (GRUB_ERR_BAD_ARGUMENT, "invalid magic");
+      goto fail;
+    }
+
+  if (grub_file_read (file, &version, sizeof (version)) != sizeof (version))
+    {
+      if (!grub_errno)
+	grub_error (GRUB_ERR_BAD_ARGUMENT, N_("premature end of file %s"),
+		    filename);
+      goto fail;
+    }
+
+  if (version != grub_cpu_to_le32_compile_time (GRUB_KEYBOARD_LAYOUTS_VERSION))
+    {
+      grub_error (GRUB_ERR_BAD_ARGUMENT, "invalid version");
+      goto fail;
+    }
+
+  newmap = grub_malloc (sizeof (*newmap));
+  if (!newmap)
+    goto fail;
+
+  if (grub_file_read (file, newmap, sizeof (*newmap)) != sizeof (*newmap))
+    {
+      if (!grub_errno)
+	grub_error (GRUB_ERR_BAD_ARGUMENT, N_("premature end of file %s"),
+		    filename);
+      goto fail;
+    }
+
+  for (i = 0; i < ARRAY_SIZE (newmap->keyboard_map); i++)
+    newmap->keyboard_map[i] = grub_le_to_cpu32(newmap->keyboard_map[i]);
+
+  for (i = 0; i < ARRAY_SIZE (newmap->keyboard_map_shift); i++)
+    newmap->keyboard_map_shift[i]
+      = grub_le_to_cpu32(newmap->keyboard_map_shift[i]);
+
+  for (i = 0; i < ARRAY_SIZE (newmap->keyboard_map_l3); i++)
+    newmap->keyboard_map_l3[i]
+      = grub_le_to_cpu32(newmap->keyboard_map_l3[i]);
+
+  for (i = 0; i < ARRAY_SIZE (newmap->keyboard_map_shift_l3); i++)
+    newmap->keyboard_map_shift_l3[i]
+      = grub_le_to_cpu32(newmap->keyboard_map_shift_l3[i]);
+
+  grub_current_layout = newmap;
+
+  return GRUB_ERR_NONE;
+
+ fail:
+  if (filename != argv[0])
+    grub_free (filename);
+  grub_free (newmap);
+  if (file)
+    grub_file_close (file);
+  return grub_errno;
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(keylayouts)
+{
+  cmd = grub_register_command ("keymap", grub_cmd_keymap,
+			       0, N_("Load a keyboard layout."));
+}
+
+GRUB_MOD_FINI(keylayouts)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/keystatus.c b/grub-core/commands/keystatus.c
new file mode 100644
index 0000000..ff3f587
--- /dev/null
+++ b/grub-core/commands/keystatus.c
@@ -0,0 +1,95 @@
+/* keystatus.c - Command to check key modifier status.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/extcmd.h>
+#include <grub/term.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const struct grub_arg_option options[] =
+  {
+    /* TRANSLATORS: "Check" in a sense that if this key is pressed then
+       "true" is returned, otherwise "false".  */
+    {"shift", 's', 0, N_("Check Shift key."), 0, 0},
+    {"ctrl", 'c', 0, N_("Check Control key."), 0, 0},
+    {"alt", 'a', 0, N_("Check Alt key."), 0, 0},
+    {0, 0, 0, 0, 0, 0}
+  };
+
+static grub_err_t
+grub_cmd_keystatus (grub_extcmd_context_t ctxt,
+		    int argc __attribute__ ((unused)),
+		    char **args __attribute__ ((unused)))
+{
+  struct grub_arg_list *state = ctxt->state;
+  int expect_mods = 0;
+  int mods;
+
+  if (state[0].set)
+    expect_mods |= (GRUB_TERM_STATUS_LSHIFT | GRUB_TERM_STATUS_RSHIFT);
+  if (state[1].set)
+    expect_mods |= (GRUB_TERM_STATUS_LCTRL | GRUB_TERM_STATUS_RCTRL);
+  if (state[2].set)
+    expect_mods |= (GRUB_TERM_STATUS_LALT | GRUB_TERM_STATUS_RALT);
+
+  grub_dprintf ("keystatus", "expect_mods: %d\n", expect_mods);
+
+  /* Without arguments, just check whether getkeystatus is supported at
+     all.  */
+  if (expect_mods == 0)
+    {
+      grub_term_input_t term;
+      int nterms = 0;
+
+      FOR_ACTIVE_TERM_INPUTS (term)
+	if (!term->getkeystatus)
+	  return grub_error (GRUB_ERR_TEST_FAILURE, N_("false"));
+	else
+	  nterms++;
+      if (!nterms)
+	return grub_error (GRUB_ERR_TEST_FAILURE, N_("false"));
+      return 0;
+    }
+
+  mods = grub_getkeystatus ();
+  grub_dprintf ("keystatus", "mods: %d\n", mods);
+  if (mods >= 0 && (mods & expect_mods) != 0)
+    return 0;
+  else
+    return grub_error (GRUB_ERR_TEST_FAILURE, N_("false"));
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT(keystatus)
+{
+  cmd = grub_register_extcmd ("keystatus", grub_cmd_keystatus, 0,
+			      "[--shift] [--ctrl] [--alt]",
+			      /* TRANSLATORS: there are 3 modifiers.  */
+			      N_("Check key modifier status."),
+			      options);
+}
+
+GRUB_MOD_FINI(keystatus)
+{
+  grub_unregister_extcmd (cmd);
+}
diff --git a/grub-core/commands/legacycfg.c b/grub-core/commands/legacycfg.c
new file mode 100644
index 0000000..cc5971f
--- /dev/null
+++ b/grub-core/commands/legacycfg.c
@@ -0,0 +1,912 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2000, 2001, 2010  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/command.h>
+#include <grub/mm.h>
+#include <grub/err.h>
+#include <grub/dl.h>
+#include <grub/file.h>
+#include <grub/normal.h>
+#include <grub/script_sh.h>
+#include <grub/i18n.h>
+#include <grub/term.h>
+#include <grub/legacy_parse.h>
+#include <grub/crypto.h>
+#include <grub/auth.h>
+#include <grub/disk.h>
+#include <grub/partition.h>
+#include <grub/safemath.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+/* Helper for legacy_file.  */
+static grub_err_t
+legacy_file_getline (char **line, int cont __attribute__ ((unused)),
+		     void *data __attribute__ ((unused)))
+{
+  *line = 0;
+  return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+legacy_file (const char *filename)
+{
+  grub_file_t file;
+  char *entryname = NULL, *entrysrc = NULL;
+  grub_menu_t menu;
+  char *suffix = grub_strdup ("");
+
+  if (!suffix)
+    return grub_errno;
+
+  file = grub_file_open (filename, GRUB_FILE_TYPE_CONFIG);
+  if (! file)
+    {
+      grub_free (suffix);
+      return grub_errno;
+    }
+
+  menu = grub_env_get_menu ();
+  if (! menu)
+    {
+      menu = grub_zalloc (sizeof (*menu));
+      if (! menu)
+	{
+	  grub_free (suffix);
+	  return grub_errno;
+	}
+
+      grub_env_set_menu (menu);
+    }
+
+  while (1)
+    {
+      char *buf = grub_file_getline (file);
+      char *parsed = NULL;
+
+      if (!buf && grub_errno)
+	{
+	  grub_file_close (file);
+	  grub_free (suffix);
+	  return grub_errno;
+	}
+
+      if (!buf)
+	break;
+
+      {
+	char *oldname = NULL;
+	char *newsuffix;
+	char *ptr;
+
+	for (ptr = buf; *ptr && grub_isspace (*ptr); ptr++);
+
+	oldname = entryname;
+	parsed = grub_legacy_parse (ptr, &entryname, &newsuffix);
+	grub_free (buf);
+	buf = NULL;
+	if (newsuffix)
+	  {
+	    char *t;
+	    grub_size_t sz;
+
+	    if (grub_add (grub_strlen (suffix), grub_strlen (newsuffix), &sz) ||
+		grub_add (sz, 1, &sz))
+	      {
+		grub_errno = GRUB_ERR_OUT_OF_RANGE;
+		goto fail_0;
+	      }
+
+	    t = suffix;
+	    suffix = grub_realloc (suffix, sz);
+	    if (!suffix)
+	      {
+		grub_free (t);
+
+ fail_0:
+		grub_free (entrysrc);
+		grub_free (parsed);
+		grub_free (newsuffix);
+		grub_free (suffix);
+		return grub_errno;
+	      }
+	    grub_memcpy (suffix + grub_strlen (suffix), newsuffix,
+			 grub_strlen (newsuffix) + 1);
+	    grub_free (newsuffix);
+	    newsuffix = NULL;
+	  }
+	if (oldname != entryname && oldname)
+	  {
+	    const char **args = grub_malloc (sizeof (args[0]));
+	    if (!args)
+	      {
+		grub_file_close (file);
+		return grub_errno;
+	      }
+	    args[0] = oldname;
+	    grub_normal_add_menu_entry (1, args, NULL, NULL, "legacy",
+					NULL, NULL,
+					entrysrc, 0);
+	    grub_free (args);
+	    entrysrc[0] = 0;
+	    grub_free (oldname);
+	  }
+      }
+
+      if (parsed && !entryname)
+	{
+	  grub_normal_parse_line (parsed, legacy_file_getline, NULL);
+	  grub_print_error ();
+	  grub_free (parsed);
+	  parsed = NULL;
+	}
+      else if (parsed)
+	{
+	  if (!entrysrc)
+	    entrysrc = parsed;
+	  else
+	    {
+	      char *t;
+	      grub_size_t sz;
+
+	      if (grub_add (grub_strlen (entrysrc), grub_strlen (parsed), &sz) ||
+		  grub_add (sz, 1, &sz))
+		{
+		  grub_errno = GRUB_ERR_OUT_OF_RANGE;
+		  goto fail_1;
+		}
+
+	      t = entrysrc;
+	      entrysrc = grub_realloc (entrysrc, sz);
+	      if (!entrysrc)
+		{
+		  grub_free (t);
+
+ fail_1:
+		  grub_free (parsed);
+		  grub_free (suffix);
+		  return grub_errno;
+		}
+	      grub_memcpy (entrysrc + grub_strlen (entrysrc), parsed,
+			   grub_strlen (parsed) + 1);
+	      grub_free (parsed);
+	      parsed = NULL;
+	    }
+	}
+    }
+  grub_file_close (file);
+
+  if (entryname)
+    {
+      const char **args = grub_malloc (sizeof (args[0]));
+      if (!args)
+	{
+	  grub_file_close (file);
+	  grub_free (suffix);
+	  grub_free (entrysrc);
+	  return grub_errno;
+	}
+      args[0] = entryname;
+      grub_normal_add_menu_entry (1, args, NULL, NULL, NULL,
+				  NULL, NULL, entrysrc, 0);
+      grub_free (args);
+    }
+
+  grub_normal_parse_line (suffix, legacy_file_getline, NULL);
+  grub_print_error ();
+  grub_free (suffix);
+  grub_free (entrysrc);
+
+  return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_cmd_legacy_source (struct grub_command *cmd,
+			int argc, char **args)
+{
+  int new_env, extractor;
+  grub_err_t ret;
+
+  if (argc != 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+
+  extractor = (cmd->name[0] == 'e');
+  new_env = (cmd->name[extractor ? (sizeof ("extract_legacy_entries_") - 1)
+		       : (sizeof ("legacy_") - 1)] == 'c');
+
+  if (new_env)
+    grub_cls ();
+
+  if (new_env && !extractor)
+    grub_env_context_open ();
+  if (extractor)
+    grub_env_extractor_open (!new_env);
+
+  ret = legacy_file (args[0]);
+
+  if (new_env)
+    {
+      grub_menu_t menu;
+      menu = grub_env_get_menu ();
+      if (menu && menu->size)
+	grub_show_menu (menu, 1, 0);
+      if (!extractor)
+	grub_env_context_close ();
+    }
+  if (extractor)
+    grub_env_extractor_close (!new_env);
+
+  return ret;
+}
+
+static enum
+  { 
+    GUESS_IT, LINUX, MULTIBOOT, KFREEBSD, KNETBSD, KOPENBSD 
+  } kernel_type;
+
+static grub_err_t
+grub_cmd_legacy_kernel (struct grub_command *mycmd __attribute__ ((unused)),
+			int argc, char **args)
+{
+  int i;
+#ifdef TODO
+  int no_mem_option = 0;
+#endif
+  struct grub_command *cmd;
+  char **cutargs;
+  int cutargc;
+  grub_err_t err = GRUB_ERR_NONE;
+  
+  for (i = 0; i < 2; i++)
+    {
+      /* FIXME: really support this.  */
+      if (argc >= 1 && grub_strcmp (args[0], "--no-mem-option") == 0)
+	{
+#ifdef TODO
+	  no_mem_option = 1;
+#endif
+	  argc--;
+	  args++;
+	  continue;
+	}
+
+      /* linux16 handles both zImages and bzImages.   */
+      if (argc >= 1 && (grub_strcmp (args[0], "--type=linux") == 0
+			|| grub_strcmp (args[0], "--type=biglinux") == 0))
+	{
+	  kernel_type = LINUX;
+	  argc--;
+	  args++;
+	  continue;
+	}
+
+      if (argc >= 1 && grub_strcmp (args[0], "--type=multiboot") == 0)
+	{
+	  kernel_type = MULTIBOOT;
+	  argc--;
+	  args++;
+	  continue;
+	}
+
+      if (argc >= 1 && grub_strcmp (args[0], "--type=freebsd") == 0)
+	{
+	  kernel_type = KFREEBSD;
+	  argc--;
+	  args++;
+	  continue;
+	}
+
+      if (argc >= 1 && grub_strcmp (args[0], "--type=openbsd") == 0)
+	{
+	  kernel_type = KOPENBSD;
+	  argc--;
+	  args++;
+	  continue;
+	}
+
+      if (argc >= 1 && grub_strcmp (args[0], "--type=netbsd") == 0)
+	{
+	  kernel_type = KNETBSD;
+	  argc--;
+	  args++;
+	  continue;
+	}
+    }
+
+  if (argc < 2)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+
+  cutargs = grub_calloc (argc - 1, sizeof (cutargs[0]));
+  if (!cutargs)
+    return grub_errno;
+  cutargc = argc - 1;
+  grub_memcpy (cutargs + 1, args + 2, sizeof (cutargs[0]) * (argc - 2));
+  cutargs[0] = args[0];
+
+  do
+    {
+      /* First try Linux.  */
+      if (kernel_type == GUESS_IT || kernel_type == LINUX)
+	{
+#ifdef GRUB_MACHINE_PCBIOS
+	  cmd = grub_command_find ("linux16");
+#else
+	  cmd = grub_command_find ("linux");
+#endif
+	  if (cmd)
+	    {
+	      if (!(cmd->func) (cmd, cutargc, cutargs))
+		{
+		  kernel_type = LINUX;
+		  goto out;
+		}
+	    }
+	  grub_errno = GRUB_ERR_NONE;
+	}
+
+      /* Then multiboot.  */
+      if (kernel_type == GUESS_IT || kernel_type == MULTIBOOT)
+	{
+	  cmd = grub_command_find ("multiboot");
+	  if (cmd)
+	    {
+	      if (!(cmd->func) (cmd, argc, args))
+		{
+		  kernel_type = MULTIBOOT;
+		  goto out;
+		}
+	    }
+	  grub_errno = GRUB_ERR_NONE;
+	}
+
+      {
+	int bsd_device = -1;
+	int bsd_slice = -1;
+	int bsd_part = -1;
+	{
+	  grub_device_t dev;
+	  const char *hdbiasstr;
+	  int hdbias = 0;
+	  hdbiasstr = grub_env_get ("legacy_hdbias");
+	  if (hdbiasstr)
+	    {
+	      hdbias = grub_strtoul (hdbiasstr, 0, 0);
+	      grub_errno = GRUB_ERR_NONE;
+	    }
+	  dev = grub_device_open (0);
+	  if (dev && dev->disk
+	      && dev->disk->dev->id == GRUB_DISK_DEVICE_BIOSDISK_ID
+	      && dev->disk->id >= 0x80 && dev->disk->id <= 0x90)
+	    {
+	      struct grub_partition *part = dev->disk->partition;
+	      bsd_device = dev->disk->id - 0x80 - hdbias;
+	      if (part && (grub_strcmp (part->partmap->name, "netbsd") == 0
+			   || grub_strcmp (part->partmap->name, "openbsd") == 0
+			   || grub_strcmp (part->partmap->name, "bsd") == 0))
+		{
+		  bsd_part = part->number;
+		  part = part->parent;
+		}
+	      if (part && grub_strcmp (part->partmap->name, "msdos") == 0)
+		bsd_slice = part->number;
+	    }
+	  if (dev)
+	    grub_device_close (dev);
+	}
+	
+	/* k*BSD didn't really work well with grub-legacy.  */
+	if (kernel_type == GUESS_IT || kernel_type == KFREEBSD)
+	  {
+	    char buf[sizeof("adXXXXXXXXXXXXsXXXXXXXXXXXXYYY")];
+	    if (bsd_device != -1)
+	      {
+		if (bsd_slice != -1 && bsd_part != -1)
+		  grub_snprintf(buf, sizeof(buf), "ad%ds%d%c", bsd_device,
+				bsd_slice, 'a' + bsd_part);
+		else if (bsd_slice != -1)
+		  grub_snprintf(buf, sizeof(buf), "ad%ds%d", bsd_device,
+				bsd_slice);
+		else
+		  grub_snprintf(buf, sizeof(buf), "ad%d", bsd_device);
+		grub_env_set ("kFreeBSD.vfs.root.mountfrom", buf);
+	      }
+	    else
+	      grub_env_unset ("kFreeBSD.vfs.root.mountfrom");
+	    cmd = grub_command_find ("kfreebsd");
+	    if (cmd)
+	      {
+		if (!(cmd->func) (cmd, cutargc, cutargs))
+		  {
+		    kernel_type = KFREEBSD;
+		    goto out;
+		  }
+	      }
+	    grub_errno = GRUB_ERR_NONE;
+	  }
+	{
+	  char **bsdargs;
+	  int bsdargc;
+	  char bsddevname[sizeof ("wdXXXXXXXXXXXXY")];
+	  int found = 0;
+
+	  if (bsd_device == -1)
+	    {
+	      bsdargs = cutargs;
+	      bsdargc = cutargc;
+	    }
+	  else
+	    {
+	      char rbuf[3] = "-r";
+	      bsdargc = cutargc + 2;
+	      bsdargs = grub_calloc (bsdargc, sizeof (bsdargs[0]));
+	      if (!bsdargs)
+		{
+		  err = grub_errno;
+		  goto out;
+		}
+	      grub_memcpy (bsdargs, args, argc * sizeof (bsdargs[0]));
+	      bsdargs[argc] = rbuf;
+	      bsdargs[argc + 1] = bsddevname;
+	      grub_snprintf (bsddevname, sizeof (bsddevname),
+			     "wd%d%c", bsd_device,
+			     bsd_part != -1 ? bsd_part + 'a' : 'c');
+	    }
+	  if (kernel_type == GUESS_IT || kernel_type == KNETBSD)
+	    {
+	      cmd = grub_command_find ("knetbsd");
+	      if (cmd)
+		{
+		  if (!(cmd->func) (cmd, bsdargc, bsdargs))
+		    {
+		      kernel_type = KNETBSD;
+		      found = 1;
+		      goto free_bsdargs;
+		    }
+		}
+	      grub_errno = GRUB_ERR_NONE;
+	    }
+	  if (kernel_type == GUESS_IT || kernel_type == KOPENBSD)
+	    {
+	      cmd = grub_command_find ("kopenbsd");
+	      if (cmd)
+		{
+		  if (!(cmd->func) (cmd, bsdargc, bsdargs))
+		    {
+		      kernel_type = KOPENBSD;
+		      found = 1;
+		      goto free_bsdargs;
+		    }
+		}
+	      grub_errno = GRUB_ERR_NONE;
+	    }
+
+free_bsdargs:
+	  if (bsdargs != cutargs)
+	    grub_free (bsdargs);
+	  if (found)
+	    goto out;
+	}
+      }
+    }
+  while (0);
+
+  err = grub_error (GRUB_ERR_BAD_OS, "couldn't load file %s",
+		    args[0]);
+out:
+  grub_free (cutargs);
+  return err;
+}
+
+static grub_err_t
+grub_cmd_legacy_initrd (struct grub_command *mycmd __attribute__ ((unused)),
+			int argc, char **args)
+{
+  struct grub_command *cmd;
+
+  if (kernel_type == LINUX)
+    {
+#ifdef GRUB_MACHINE_PCBIOS
+      cmd = grub_command_find ("initrd16");
+#else
+      cmd = grub_command_find ("initrd");
+#endif
+      if (!cmd)
+	return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("can't find command `%s'"),
+#ifdef GRUB_MACHINE_PCBIOS
+			   "initrd16"
+#else
+			   "initrd"
+#endif
+			   );
+
+      return cmd->func (cmd, argc ? 1 : 0, args);
+    }
+  if (kernel_type == MULTIBOOT)
+    {
+      cmd = grub_command_find ("module");
+      if (!cmd)
+	return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("can't find command `%s'"),
+			   "module");
+
+      return cmd->func (cmd, argc, args);
+    }
+
+  return grub_error (GRUB_ERR_BAD_ARGUMENT,
+		     N_("you need to load the kernel first"));
+}
+
+static grub_err_t
+grub_cmd_legacy_initrdnounzip (struct grub_command *mycmd __attribute__ ((unused)),
+			       int argc, char **args)
+{
+  struct grub_command *cmd;
+
+  if (kernel_type == LINUX)
+    {
+      cmd = grub_command_find ("initrd16");
+      if (!cmd)
+	return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("can't find command `%s'"),
+			   "initrd16");
+
+      return cmd->func (cmd, argc, args);
+    }
+  if (kernel_type == MULTIBOOT)
+    {
+      char **newargs;
+      grub_err_t err;
+      char nounzipbuf[10] = "--nounzip";
+
+      cmd = grub_command_find ("module");
+      if (!cmd)
+	return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("can't find command `%s'"),
+			   "module");
+
+      newargs = grub_calloc (argc + 1, sizeof (newargs[0]));
+      if (!newargs)
+	return grub_errno;
+      grub_memcpy (newargs + 1, args, argc * sizeof (newargs[0]));
+      newargs[0] = nounzipbuf;
+
+      err = cmd->func (cmd, argc + 1, newargs);
+      grub_free (newargs);
+      return err;
+    }
+
+  return grub_error (GRUB_ERR_BAD_ARGUMENT,
+		     N_("you need to load the kernel first"));
+}
+
+static grub_err_t
+check_password_deny (const char *user __attribute__ ((unused)),
+		     const char *entered  __attribute__ ((unused)),
+		     void *password __attribute__ ((unused)))
+{
+  return GRUB_ACCESS_DENIED;
+}
+
+#define MD5_HASHLEN 16
+
+struct legacy_md5_password
+{
+  grub_uint8_t *salt;
+  int saltlen;
+  grub_uint8_t hash[MD5_HASHLEN];
+};
+
+static int
+check_password_md5_real (const char *entered,
+			 struct legacy_md5_password *pw)
+{
+  grub_size_t enteredlen = grub_strlen (entered);
+  unsigned char alt_result[MD5_HASHLEN];
+  unsigned char *digest;
+  grub_uint8_t *ctx;
+  grub_size_t i;
+  int ret;
+
+  ctx = grub_zalloc (GRUB_MD_MD5->contextsize);
+  if (!ctx)
+    return 0;
+
+  GRUB_MD_MD5->init (ctx);
+  GRUB_MD_MD5->write (ctx, entered, enteredlen);
+  GRUB_MD_MD5->write (ctx, pw->salt + 3, pw->saltlen - 3);
+  GRUB_MD_MD5->write (ctx, entered, enteredlen);
+  digest = GRUB_MD_MD5->read (ctx);
+  GRUB_MD_MD5->final (ctx);
+  grub_memcpy (alt_result, digest, MD5_HASHLEN);
+  
+  GRUB_MD_MD5->init (ctx);
+  GRUB_MD_MD5->write (ctx, entered, enteredlen);
+  GRUB_MD_MD5->write (ctx, pw->salt, pw->saltlen); /* include the $1$ header */
+  for (i = enteredlen; i > 16; i -= 16)
+    GRUB_MD_MD5->write (ctx, alt_result, 16);
+  GRUB_MD_MD5->write (ctx, alt_result, i);
+
+  for (i = enteredlen; i > 0; i >>= 1)
+    GRUB_MD_MD5->write (ctx, entered + ((i & 1) ? enteredlen : 0), 1);
+  digest = GRUB_MD_MD5->read (ctx);
+  GRUB_MD_MD5->final (ctx);
+
+  for (i = 0; i < 1000; i++)
+    {
+      grub_memcpy (alt_result, digest, 16);
+
+      GRUB_MD_MD5->init (ctx);
+      if ((i & 1) != 0)
+	GRUB_MD_MD5->write (ctx, entered, enteredlen);
+      else
+	GRUB_MD_MD5->write (ctx, alt_result, 16);
+      
+      if (i % 3 != 0)
+	GRUB_MD_MD5->write (ctx, pw->salt + 3, pw->saltlen - 3);
+
+      if (i % 7 != 0)
+	GRUB_MD_MD5->write (ctx, entered, enteredlen);
+
+      if ((i & 1) != 0)
+	GRUB_MD_MD5->write (ctx, alt_result, 16);
+      else
+	GRUB_MD_MD5->write (ctx, entered, enteredlen);
+      digest = GRUB_MD_MD5->read (ctx);
+      GRUB_MD_MD5->final (ctx);
+    }
+
+  ret = (grub_crypto_memcmp (digest, pw->hash, MD5_HASHLEN) == 0);
+  grub_free (ctx);
+  return ret;
+}
+
+static grub_err_t
+check_password_md5 (const char *user,
+		    const char *entered,
+		    void *password)
+{
+  if (!check_password_md5_real (entered, password))
+    return GRUB_ACCESS_DENIED;
+
+  grub_auth_authenticate (user);
+
+  return GRUB_ERR_NONE;
+}
+
+static inline int
+ib64t (char c)
+{
+  if (c == '.')
+    return 0;
+  if (c == '/')
+    return 1;
+  if (c >= '0' && c <= '9')
+    return c - '0' + 2;
+  if (c >= 'A' && c <= 'Z')
+    return c - 'A' + 12;
+  if (c >= 'a' && c <= 'z')
+    return c - 'a' + 38;
+  return -1;
+}
+
+static struct legacy_md5_password *
+parse_legacy_md5 (int argc, char **args)
+{
+  const char *salt, *saltend;
+  struct legacy_md5_password *pw = NULL;
+  int i;
+  const char *p;
+
+  if (grub_memcmp (args[0], "--md5", sizeof ("--md5")) != 0)
+    goto fail;
+  if (argc == 1)
+    goto fail;
+  if (grub_strlen(args[1]) <= 3)
+    goto fail;
+  salt = args[1];
+  saltend = grub_strchr (salt + 3, '$');
+  if (!saltend)
+    goto fail;
+  pw = grub_malloc (sizeof (*pw));
+  if (!pw)
+    goto fail;
+
+  p = saltend + 1;
+  for (i = 0; i < 5; i++)
+    {
+      int n;
+      grub_uint32_t w = 0;
+
+      for (n = 0; n < 4; n++)
+	{
+	  int ww = ib64t(*p++);
+	  if (ww == -1)
+	    goto fail;
+	  w |= ww << (n * 6);
+	}
+      pw->hash[i == 4 ? 5 : 12+i] = w & 0xff;
+      pw->hash[6+i] = (w >> 8) & 0xff;
+      pw->hash[i] = (w >> 16) & 0xff;
+    }
+  {
+    int n;
+    grub_uint32_t w = 0;
+    for (n = 0; n < 2; n++)
+      {
+	int ww = ib64t(*p++);
+	if (ww == -1)
+	  goto fail;
+	w |= ww << (6 * n);
+      }
+    if (w >= 0x100)
+      goto fail;
+    pw->hash[11] = w;
+  }
+
+  pw->saltlen = saltend - salt;
+  pw->salt = (grub_uint8_t *) grub_strndup (salt, pw->saltlen);
+  if (!pw->salt)
+    goto fail;
+
+  return pw;
+
+ fail:
+  grub_free (pw);
+  return NULL;
+}
+
+static grub_err_t
+grub_cmd_legacy_password (struct grub_command *mycmd __attribute__ ((unused)),
+			  int argc, char **args)
+{
+  struct legacy_md5_password *pw = NULL;
+
+  if (argc == 0)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected"));
+  if (args[0][0] != '-' || args[0][1] != '-')
+    return grub_normal_set_password ("legacy", args[0]);
+
+  pw = parse_legacy_md5 (argc, args);
+
+  if (pw)
+    return grub_auth_register_authentication ("legacy", check_password_md5, pw);
+  else
+    /* This is to imitate minor difference between grub-legacy in GRUB2.
+       If 2 password commands are executed in a row and second one fails
+       on GRUB2 the password of first one is used, whereas in grub-legacy
+       authenthication is denied. In case of no password command was executed
+       early both versions deny any access.  */
+    return grub_auth_register_authentication ("legacy", check_password_deny,
+					      NULL);
+}
+
+int
+grub_legacy_check_md5_password (int argc, char **args,
+				char *entered)
+{
+  struct legacy_md5_password *pw = NULL;
+  int ret;
+
+  if (args[0][0] != '-' || args[0][1] != '-')
+    {
+      char correct[GRUB_AUTH_MAX_PASSLEN];
+
+      grub_memset (correct, 0, sizeof (correct));
+      grub_strncpy (correct, args[0], sizeof (correct));
+
+      return grub_crypto_memcmp (entered, correct, GRUB_AUTH_MAX_PASSLEN) == 0;
+    }
+
+  pw = parse_legacy_md5 (argc, args);
+
+  if (!pw)
+    return 0;
+
+  ret = check_password_md5_real (entered, pw);
+  grub_free (pw);
+  return ret;
+}
+
+static grub_err_t
+grub_cmd_legacy_check_password (struct grub_command *mycmd __attribute__ ((unused)),
+				int argc, char **args)
+{
+  char entered[GRUB_AUTH_MAX_PASSLEN];
+
+  if (argc == 0)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected"));
+  grub_puts_ (N_("Enter password: "));
+  if (!grub_password_get (entered, GRUB_AUTH_MAX_PASSLEN))
+    return GRUB_ACCESS_DENIED;
+
+  if (!grub_legacy_check_md5_password (argc, args,
+				       entered))
+    return GRUB_ACCESS_DENIED;
+
+  return GRUB_ERR_NONE;
+}
+
+static grub_command_t cmd_source, cmd_configfile;
+static grub_command_t cmd_source_extract, cmd_configfile_extract;
+static grub_command_t cmd_kernel, cmd_initrd, cmd_initrdnounzip;
+static grub_command_t cmd_password, cmd_check_password;
+
+GRUB_MOD_INIT(legacycfg)
+{
+  cmd_source
+    = grub_register_command ("legacy_source",
+			     grub_cmd_legacy_source,
+			     N_("FILE"),
+			     /* TRANSLATORS: "legacy config" means
+				"config as used by grub-legacy".  */
+			     N_("Parse legacy config in same context"));
+  cmd_configfile
+    = grub_register_command ("legacy_configfile",
+			     grub_cmd_legacy_source,
+			     N_("FILE"),
+			     N_("Parse legacy config in new context"));
+  cmd_source_extract
+    = grub_register_command ("extract_legacy_entries_source",
+			     grub_cmd_legacy_source,
+			     N_("FILE"),
+			     N_("Parse legacy config in same context taking only menu entries"));
+  cmd_configfile_extract
+    = grub_register_command ("extract_legacy_entries_configfile",
+			     grub_cmd_legacy_source,
+			     N_("FILE"),
+			     N_("Parse legacy config in new context taking only menu entries"));
+
+  cmd_kernel = grub_register_command ("legacy_kernel",
+				      grub_cmd_legacy_kernel,
+				      N_("[--no-mem-option] [--type=TYPE] FILE [ARG ...]"),
+				      N_("Simulate grub-legacy `kernel' command"));
+
+  cmd_initrd = grub_register_command ("legacy_initrd",
+				      grub_cmd_legacy_initrd,
+				      N_("FILE [ARG ...]"),
+				      N_("Simulate grub-legacy `initrd' command"));
+  cmd_initrdnounzip = grub_register_command ("legacy_initrd_nounzip",
+					     grub_cmd_legacy_initrdnounzip,
+					     N_("FILE [ARG ...]"),
+					     N_("Simulate grub-legacy `modulenounzip' command"));
+
+  cmd_password = grub_register_command ("legacy_password",
+					grub_cmd_legacy_password,
+					N_("[--md5] PASSWD [FILE]"),
+					N_("Simulate grub-legacy `password' command"));
+
+  cmd_check_password = grub_register_command ("legacy_check_password",
+					      grub_cmd_legacy_check_password,
+					      N_("[--md5] PASSWD [FILE]"),
+					      N_("Simulate grub-legacy `password' command in menu entry mode"));
+
+}
+
+GRUB_MOD_FINI(legacycfg)
+{
+  grub_unregister_command (cmd_source);
+  grub_unregister_command (cmd_configfile);
+  grub_unregister_command (cmd_source_extract);
+  grub_unregister_command (cmd_configfile_extract);
+
+  grub_unregister_command (cmd_kernel);
+  grub_unregister_command (cmd_initrd);
+  grub_unregister_command (cmd_initrdnounzip);
+
+  grub_unregister_command (cmd_password);
+  grub_unregister_command (cmd_check_password);
+}
diff --git a/grub-core/commands/loadenv.c b/grub-core/commands/loadenv.c
new file mode 100644
index 0000000..3fd664a
--- /dev/null
+++ b/grub-core/commands/loadenv.c
@@ -0,0 +1,470 @@
+/* loadenv.c - command to load/save environment variable.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2008,2009,2010  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/mm.h>
+#include <grub/file.h>
+#include <grub/disk.h>
+#include <grub/misc.h>
+#include <grub/env.h>
+#include <grub/partition.h>
+#include <grub/lib/envblk.h>
+#include <grub/extcmd.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const struct grub_arg_option options[] =
+  {
+    /* TRANSLATORS: This option is used to override default filename
+       for loading and storing environment.  */
+    {"file", 'f', 0, N_("Specify filename."), 0, ARG_TYPE_PATHNAME},
+    {"skip-sig", 's', 0,
+     N_("Skip signature-checking of the environment file."), 0, ARG_TYPE_NONE},
+    {0, 0, 0, 0, 0, 0}
+  };
+
+/* Opens 'filename' with compression filters disabled. Optionally disables the
+   PUBKEY filter (that insists upon properly signed files) as well.  PUBKEY
+   filter is restored before the function returns. */
+static grub_file_t
+open_envblk_file (char *filename,
+		  enum grub_file_type type)
+{
+  grub_file_t file;
+  char *buf = 0;
+
+  if (! filename)
+    {
+      const char *prefix;
+      int len;
+
+      prefix = grub_env_get ("prefix");
+      if (! prefix)
+        {
+          grub_error (GRUB_ERR_FILE_NOT_FOUND, N_("variable `%s' isn't set"), "prefix");
+          return 0;
+        }
+
+      len = grub_strlen (prefix);
+      buf = grub_malloc (len + 1 + sizeof (GRUB_ENVBLK_DEFCFG));
+      if (! buf)
+        return 0;
+      filename = buf;
+
+      grub_strcpy (filename, prefix);
+      filename[len] = '/';
+      grub_strcpy (filename + len + 1, GRUB_ENVBLK_DEFCFG);
+    }
+
+  file = grub_file_open (filename, type);
+
+  grub_free (buf);
+  return file;
+}
+
+static grub_envblk_t
+read_envblk_file (grub_file_t file)
+{
+  grub_off_t offset = 0;
+  char *buf;
+  grub_size_t size = grub_file_size (file);
+  grub_envblk_t envblk;
+
+  buf = grub_malloc (size);
+  if (! buf)
+    return 0;
+
+  while (size > 0)
+    {
+      grub_ssize_t ret;
+
+      ret = grub_file_read (file, buf + offset, size);
+      if (ret <= 0)
+        {
+          grub_free (buf);
+          return 0;
+        }
+
+      size -= ret;
+      offset += ret;
+    }
+
+  envblk = grub_envblk_open (buf, offset);
+  if (! envblk)
+    {
+      grub_free (buf);
+      grub_error (GRUB_ERR_BAD_FILE_TYPE, "invalid environment block");
+      return 0;
+    }
+
+  return envblk;
+}
+
+struct grub_env_whitelist
+{
+  grub_size_t len;
+  char **list;
+};
+typedef struct grub_env_whitelist grub_env_whitelist_t;
+
+static int
+test_whitelist_membership (const char* name,
+                           const grub_env_whitelist_t* whitelist)
+{
+  grub_size_t i;
+
+  for (i = 0; i < whitelist->len; i++)
+    if (grub_strcmp (name, whitelist->list[i]) == 0)
+      return 1;  /* found it */
+
+  return 0;  /* not found */
+}
+
+/* Helper for grub_cmd_load_env.  */
+static int
+set_var (const char *name, const char *value, void *whitelist)
+{
+  if (! whitelist)
+    {
+      grub_env_set (name, value);
+      return 0;
+    }
+
+  if (test_whitelist_membership (name,
+				 (const grub_env_whitelist_t *) whitelist))
+    grub_env_set (name, value);
+
+  return 0;
+}
+
+static grub_err_t
+grub_cmd_load_env (grub_extcmd_context_t ctxt, int argc, char **args)
+{
+  struct grub_arg_list *state = ctxt->state;
+  grub_file_t file;
+  grub_envblk_t envblk;
+  grub_env_whitelist_t whitelist;
+
+  whitelist.len = argc;
+  whitelist.list = args;
+
+  /* state[0] is the -f flag; state[1] is the --skip-sig flag */
+  file = open_envblk_file ((state[0].set) ? state[0].arg : 0,
+			   GRUB_FILE_TYPE_LOADENV
+			   | (state[1].set
+			      ? GRUB_FILE_TYPE_SKIP_SIGNATURE : GRUB_FILE_TYPE_NONE));
+  if (! file)
+    return grub_errno;
+
+  envblk = read_envblk_file (file);
+  if (! envblk)
+    goto fail;
+
+  /* argc > 0 indicates caller provided a whitelist of variables to read. */
+  grub_envblk_iterate (envblk, argc > 0 ? &whitelist : 0, set_var);
+  grub_envblk_close (envblk);
+
+ fail:
+  grub_file_close (file);
+  return grub_errno;
+}
+
+/* Print all variables in current context.  */
+static int
+print_var (const char *name, const char *value,
+           void *hook_data __attribute__ ((unused)))
+{
+  grub_printf ("%s=%s\n", name, value);
+  return 0;
+}
+
+static grub_err_t
+grub_cmd_list_env (grub_extcmd_context_t ctxt,
+		   int argc __attribute__ ((unused)),
+		   char **args __attribute__ ((unused)))
+{
+  struct grub_arg_list *state = ctxt->state;
+  grub_file_t file;
+  grub_envblk_t envblk;
+
+  file = open_envblk_file ((state[0].set) ? state[0].arg : 0,
+			   GRUB_FILE_TYPE_LOADENV
+			   | (state[1].set
+			      ? GRUB_FILE_TYPE_SKIP_SIGNATURE : GRUB_FILE_TYPE_NONE));
+  if (! file)
+    return grub_errno;
+
+  envblk = read_envblk_file (file);
+  if (! envblk)
+    goto fail;
+
+  grub_envblk_iterate (envblk, NULL, print_var);
+  grub_envblk_close (envblk);
+
+ fail:
+  grub_file_close (file);
+  return grub_errno;
+}
+
+/* Used to maintain a variable length of blocklists internally.  */
+struct blocklist
+{
+  grub_disk_addr_t sector;
+  unsigned offset;
+  unsigned length;
+  struct blocklist *next;
+};
+
+static void
+free_blocklists (struct blocklist *p)
+{
+  struct blocklist *q;
+
+  for (; p; p = q)
+    {
+      q = p->next;
+      grub_free (p);
+    }
+}
+
+static grub_err_t
+check_blocklists (grub_envblk_t envblk, struct blocklist *blocklists,
+                  grub_file_t file)
+{
+  grub_size_t total_length;
+  grub_size_t index;
+  grub_disk_t disk;
+  grub_disk_addr_t part_start;
+  struct blocklist *p;
+  char *buf;
+
+  /* Sanity checks.  */
+  total_length = 0;
+  for (p = blocklists; p; p = p->next)
+    {
+      struct blocklist *q;
+      /* Check if any pair of blocks overlap.  */
+      for (q = p->next; q; q = q->next)
+        {
+	  grub_disk_addr_t s1, s2;
+	  grub_disk_addr_t e1, e2;
+
+	  s1 = p->sector;
+	  e1 = s1 + ((p->length + GRUB_DISK_SECTOR_SIZE - 1) >> GRUB_DISK_SECTOR_BITS);
+
+	  s2 = q->sector;
+	  e2 = s2 + ((q->length + GRUB_DISK_SECTOR_SIZE - 1) >> GRUB_DISK_SECTOR_BITS);
+
+	  if (s1 < e2 && s2 < e1)
+            {
+              /* This might be actually valid, but it is unbelievable that
+                 any filesystem makes such a silly allocation.  */
+              return grub_error (GRUB_ERR_BAD_FS, "malformed file");
+            }
+        }
+
+      total_length += p->length;
+    }
+
+  if (total_length != grub_file_size (file))
+    {
+      /* Maybe sparse, unallocated sectors. No way in GRUB.  */
+      return grub_error (GRUB_ERR_BAD_FILE_TYPE, "sparse file not allowed");
+    }
+
+  /* One more sanity check. Re-read all sectors by blocklists, and compare
+     those with the data read via a file.  */
+  disk = file->device->disk;
+
+  part_start = grub_partition_get_start (disk->partition);
+
+  buf = grub_envblk_buffer (envblk);
+  char *blockbuf = NULL;
+  grub_size_t blockbuf_len = 0;
+  for (p = blocklists, index = 0; p; index += p->length, p = p->next)
+    {
+      if (p->length > blockbuf_len)
+	{
+	  grub_free (blockbuf);
+	  blockbuf_len = 2 * p->length;
+	  blockbuf = grub_malloc (blockbuf_len);
+	  if (!blockbuf)
+	    return grub_errno;
+	}
+
+      if (grub_disk_read (disk, p->sector - part_start,
+                          p->offset, p->length, blockbuf))
+        return grub_errno;
+
+      if (grub_memcmp (buf + index, blockbuf, p->length) != 0)
+	return grub_error (GRUB_ERR_FILE_READ_ERROR, "invalid blocklist");
+    }
+
+  return GRUB_ERR_NONE;
+}
+
+static int
+write_blocklists (grub_envblk_t envblk, struct blocklist *blocklists,
+                  grub_file_t file)
+{
+  char *buf;
+  grub_disk_t disk;
+  grub_disk_addr_t part_start;
+  struct blocklist *p;
+  grub_size_t index;
+
+  buf = grub_envblk_buffer (envblk);
+  disk = file->device->disk;
+  part_start = grub_partition_get_start (disk->partition);
+
+  index = 0;
+  for (p = blocklists; p; index += p->length, p = p->next)
+    {
+      if (grub_disk_write (disk, p->sector - part_start,
+                           p->offset, p->length, buf + index))
+        return 0;
+    }
+
+  return 1;
+}
+
+/* Context for grub_cmd_save_env.  */
+struct grub_cmd_save_env_ctx
+{
+  struct blocklist *head, *tail;
+};
+
+/* Store blocklists in a linked list.  */
+static void
+save_env_read_hook (grub_disk_addr_t sector, unsigned offset, unsigned length,
+		    void *data)
+{
+  struct grub_cmd_save_env_ctx *ctx = data;
+  struct blocklist *block;
+
+  block = grub_malloc (sizeof (*block));
+  if (! block)
+    return;
+
+  block->sector = sector;
+  block->offset = offset;
+  block->length = length;
+
+  /* Slightly complicated, because the list should be FIFO.  */
+  block->next = 0;
+  if (ctx->tail)
+    ctx->tail->next = block;
+  ctx->tail = block;
+  if (! ctx->head)
+    ctx->head = block;
+}
+
+static grub_err_t
+grub_cmd_save_env (grub_extcmd_context_t ctxt, int argc, char **args)
+{
+  struct grub_arg_list *state = ctxt->state;
+  grub_file_t file;
+  grub_envblk_t envblk;
+  struct grub_cmd_save_env_ctx ctx = {
+    .head = 0,
+    .tail = 0
+  };
+
+  if (! argc)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "no variable is specified");
+
+  file = open_envblk_file ((state[0].set) ? state[0].arg : 0,
+			   GRUB_FILE_TYPE_SAVEENV
+			   | GRUB_FILE_TYPE_SKIP_SIGNATURE);
+  if (! file)
+    return grub_errno;
+
+  if (! file->device->disk)
+    {
+      grub_file_close (file);
+      return grub_error (GRUB_ERR_BAD_DEVICE, "disk device required");
+    }
+
+  file->read_hook = save_env_read_hook;
+  file->read_hook_data = &ctx;
+  envblk = read_envblk_file (file);
+  file->read_hook = 0;
+  if (! envblk)
+    goto fail;
+
+  if (check_blocklists (envblk, ctx.head, file))
+    goto fail;
+
+  while (argc)
+    {
+      const char *value;
+
+      value = grub_env_get (args[0]);
+      if (value)
+        {
+          if (! grub_envblk_set (envblk, args[0], value))
+            {
+              grub_error (GRUB_ERR_BAD_ARGUMENT, "environment block too small");
+              goto fail;
+            }
+        }
+      else
+	grub_envblk_delete (envblk, args[0]);
+
+      argc--;
+      args++;
+    }
+
+  write_blocklists (envblk, ctx.head, file);
+
+ fail:
+  if (envblk)
+    grub_envblk_close (envblk);
+  free_blocklists (ctx.head);
+  grub_file_close (file);
+  return grub_errno;
+}
+
+static grub_extcmd_t cmd_load, cmd_list, cmd_save;
+
+GRUB_MOD_INIT(loadenv)
+{
+  cmd_load =
+    grub_register_extcmd ("load_env", grub_cmd_load_env, 0,
+			  N_("[-f FILE] [-s|--skip-sig] [variable_name_to_whitelist] [...]"),
+			  N_("Load variables from environment block file."),
+			  options);
+  cmd_list =
+    grub_register_extcmd ("list_env", grub_cmd_list_env, 0, N_("[-f FILE]"),
+			  N_("List variables from environment block file."),
+			  options);
+  cmd_save =
+    grub_register_extcmd ("save_env", grub_cmd_save_env, 0,
+			  N_("[-f FILE] variable_name [...]"),
+			  N_("Save variables to environment block file."),
+			  options);
+}
+
+GRUB_MOD_FINI(loadenv)
+{
+  grub_unregister_extcmd (cmd_load);
+  grub_unregister_extcmd (cmd_list);
+  grub_unregister_extcmd (cmd_save);
+}
diff --git a/grub-core/commands/ls.c b/grub-core/commands/ls.c
new file mode 100644
index 0000000..8e98c73
--- /dev/null
+++ b/grub-core/commands/ls.c
@@ -0,0 +1,302 @@
+/* ls.c - command to list files and devices */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2003,2005,2007,2008,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/err.h>
+#include <grub/dl.h>
+#include <grub/disk.h>
+#include <grub/device.h>
+#include <grub/term.h>
+#include <grub/partition.h>
+#include <grub/file.h>
+#include <grub/normal.h>
+#include <grub/extcmd.h>
+#include <grub/datetime.h>
+#include <grub/i18n.h>
+#include <grub/net.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const struct grub_arg_option options[] =
+  {
+    {"long", 'l', 0, N_("Show a long list with more detailed information."), 0, 0},
+    {"human-readable", 'h', 0, N_("Print sizes in a human readable format."), 0, 0},
+    {"all", 'a', 0, N_("List all files."), 0, 0},
+    {0, 0, 0, 0, 0, 0}
+  };
+
+/* Helper for grub_ls_list_devices.  */
+static int
+grub_ls_print_devices (const char *name, void *data)
+{
+  int *longlist = data;
+
+  if (*longlist)
+    grub_normal_print_device_info (name);
+  else
+    grub_printf ("(%s) ", name);
+
+  return 0;
+}
+
+static grub_err_t
+grub_ls_list_devices (int longlist)
+{
+  grub_device_iterate (grub_ls_print_devices, &longlist);
+  grub_xputs ("\n");
+
+#if 0
+  {
+    grub_net_app_level_t proto;
+    int first = 1;
+    FOR_NET_APP_LEVEL (proto)
+    {
+      if (first)
+	grub_puts_ (N_("Network protocols:"));
+      first = 0;
+      grub_printf ("%s ", proto->name);
+    }
+    grub_xputs ("\n");
+  }
+#endif
+
+  grub_refresh ();
+
+  return 0;
+}
+
+/* Context for grub_ls_list_files.  */
+struct grub_ls_list_files_ctx
+{
+  char *dirname;
+  int all;
+  int human;
+};
+
+/* Helper for grub_ls_list_files.  */
+static int
+print_files (const char *filename, const struct grub_dirhook_info *info,
+	     void *data)
+{
+  struct grub_ls_list_files_ctx *ctx = data;
+
+  if (ctx->all || filename[0] != '.')
+    grub_printf ("%s%s ", filename, info->dir ? "/" : "");
+
+  return 0;
+}
+
+/* Helper for grub_ls_list_files.  */
+static int
+print_files_long (const char *filename, const struct grub_dirhook_info *info,
+		  void *data)
+{
+  struct grub_ls_list_files_ctx *ctx = data;
+
+  if ((! ctx->all) && (filename[0] == '.'))
+    return 0;
+
+  if (! info->dir)
+    {
+      grub_file_t file;
+      char *pathname;
+
+      if (ctx->dirname[grub_strlen (ctx->dirname) - 1] == '/')
+	pathname = grub_xasprintf ("%s%s", ctx->dirname, filename);
+      else
+	pathname = grub_xasprintf ("%s/%s", ctx->dirname, filename);
+
+      if (!pathname)
+	return 1;
+
+      /* XXX: For ext2fs symlinks are detected as files while they
+	 should be reported as directories.  */
+      file = grub_file_open (pathname, GRUB_FILE_TYPE_GET_SIZE
+			     | GRUB_FILE_TYPE_NO_DECOMPRESS);
+      if (! file)
+	{
+	  grub_errno = 0;
+	  grub_free (pathname);
+	  return 0;
+	}
+
+      if (! ctx->human)
+	grub_printf ("%-12llu", (unsigned long long) file->size);
+      else
+	grub_printf ("%-12s", grub_get_human_size (file->size,
+						   GRUB_HUMAN_SIZE_SHORT));
+      grub_file_close (file);
+      grub_free (pathname);
+    }
+  else
+    grub_printf ("%-12s", _("DIR"));
+
+  if (info->mtimeset)
+    {
+      struct grub_datetime datetime;
+      grub_unixtime2datetime (info->mtime, &datetime);
+      if (ctx->human)
+	grub_printf (" %d-%02d-%02d %02d:%02d:%02d %-11s ",
+		     datetime.year, datetime.month, datetime.day,
+		     datetime.hour, datetime.minute,
+		     datetime.second,
+		     grub_get_weekday_name (&datetime));
+      else
+	grub_printf (" %04d%02d%02d%02d%02d%02d ",
+		     datetime.year, datetime.month,
+		     datetime.day, datetime.hour,
+		     datetime.minute, datetime.second);
+    }
+  grub_printf ("%s%s\n", filename, info->dir ? "/" : "");
+
+  return 0;
+}
+
+static grub_err_t
+grub_ls_list_files (char *dirname, int longlist, int all, int human)
+{
+  char *device_name;
+  grub_fs_t fs;
+  const char *path;
+  grub_device_t dev;
+
+  device_name = grub_file_get_device_name (dirname);
+  dev = grub_device_open (device_name);
+  if (! dev)
+    goto fail;
+
+  fs = grub_fs_probe (dev);
+  path = grub_strchr (dirname, ')');
+  if (! path)
+    path = dirname;
+  else
+    path++;
+
+  if (! path && ! device_name)
+    {
+      grub_error (GRUB_ERR_BAD_ARGUMENT, "invalid argument");
+      goto fail;
+    }
+
+  if (! *path && device_name)
+    {
+      if (grub_errno == GRUB_ERR_UNKNOWN_FS)
+	grub_errno = GRUB_ERR_NONE;
+
+#ifdef GRUB_MACHINE_IEEE1275
+      /*
+       * Close device to prevent a double open in grub_normal_print_device_info().
+       * Otherwise it may lead to hangs on some IEEE 1275 platforms.
+       */
+      grub_device_close (dev);
+      dev = NULL;
+#endif
+
+      grub_normal_print_device_info (device_name);
+    }
+  else if (fs)
+    {
+      struct grub_ls_list_files_ctx ctx = {
+	.dirname = dirname,
+	.all = all,
+	.human = human
+      };
+
+      if (longlist)
+	(fs->fs_dir) (dev, path, print_files_long, &ctx);
+      else
+	(fs->fs_dir) (dev, path, print_files, &ctx);
+
+      if (grub_errno == GRUB_ERR_BAD_FILE_TYPE
+	  && path[grub_strlen (path) - 1] != '/')
+	{
+	  /* PATH might be a regular file.  */
+	  char *p;
+	  grub_file_t file;
+	  struct grub_dirhook_info info;
+	  grub_errno = 0;
+
+	  file = grub_file_open (dirname, GRUB_FILE_TYPE_GET_SIZE
+				 | GRUB_FILE_TYPE_NO_DECOMPRESS);
+	  if (! file)
+	    goto fail;
+
+	  grub_file_close (file);
+
+	  p = grub_strrchr (dirname, '/') + 1;
+	  dirname = grub_strndup (dirname, p - dirname);
+	  if (! dirname)
+	    goto fail;
+
+	  all = 1;
+	  grub_memset (&info, 0, sizeof (info));
+	  if (longlist)
+	    print_files_long (p, &info, &ctx);
+	  else
+	    print_files (p, &info, &ctx);
+
+	  grub_free (dirname);
+	}
+
+      if (grub_errno == GRUB_ERR_NONE)
+	grub_xputs ("\n");
+
+      grub_refresh ();
+    }
+
+ fail:
+  if (dev)
+    grub_device_close (dev);
+
+  grub_free (device_name);
+
+  return 0;
+}
+
+static grub_err_t
+grub_cmd_ls (grub_extcmd_context_t ctxt, int argc, char **args)
+{
+  struct grub_arg_list *state = ctxt->state;
+  int i;
+
+  if (argc == 0)
+    grub_ls_list_devices (state[0].set);
+  else
+    for (i = 0; i < argc; i++)
+      grub_ls_list_files (args[i], state[0].set, state[2].set,
+			  state[1].set);
+
+  return 0;
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT(ls)
+{
+  cmd = grub_register_extcmd ("ls", grub_cmd_ls, 0,
+			      N_("[-l|-h|-a] [FILE ...]"),
+			      N_("List devices and files."), options);
+}
+
+GRUB_MOD_FINI(ls)
+{
+  grub_unregister_extcmd (cmd);
+}
diff --git a/grub-core/commands/lsacpi.c b/grub-core/commands/lsacpi.c
new file mode 100644
index 0000000..0824914
--- /dev/null
+++ b/grub-core/commands/lsacpi.c
@@ -0,0 +1,314 @@
+/* acpi.c  - Display acpi tables.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2008  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <grub/types.h>
+#include <grub/mm.h>
+#include <grub/misc.h>
+#include <grub/normal.h>
+#include <grub/acpi.h>
+#include <grub/extcmd.h>
+#include <grub/i18n.h>
+#include <grub/dl.h>
+
+#pragma GCC diagnostic ignored "-Wcast-align"
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static void
+print_strn (grub_uint8_t *str, grub_size_t len)
+{
+  for (; *str && len; str++, len--)
+    grub_printf ("%c", *str);
+  for (len++; len; len--)
+    grub_printf (" ");  
+}
+
+#define print_field(x) print_strn(x, sizeof (x))
+
+static void
+disp_acpi_table (struct grub_acpi_table_header *t)
+{
+  print_field (t->signature);
+  grub_printf ("%4" PRIuGRUB_UINT32_T "B rev=%u chksum=0x%02x (%s) OEM=", t->length, t->revision, t->checksum,
+	       grub_byte_checksum (t, t->length) == 0 ? "valid" : "invalid");
+  print_field (t->oemid);
+  print_field (t->oemtable);
+  grub_printf ("OEMrev=%08" PRIxGRUB_UINT32_T " ", t->oemrev);
+  print_field (t->creator_id);
+  grub_printf (" %08" PRIxGRUB_UINT32_T "\n", t->creator_rev);
+}
+
+static void
+disp_madt_table (struct grub_acpi_madt *t)
+{
+  struct grub_acpi_madt_entry_header *d;
+  grub_uint32_t len;
+
+  disp_acpi_table (&t->hdr);
+  grub_printf ("Local APIC=%08" PRIxGRUB_UINT32_T "  Flags=%08"
+	       PRIxGRUB_UINT32_T "\n",
+	       t->lapic_addr, t->flags);
+  len = t->hdr.length - sizeof (struct grub_acpi_madt);
+  d = t->entries;
+  for (;len > 0; len -= d->len, d = (void *) ((grub_uint8_t *) d + d->len))
+    {
+      switch (d->type)
+	{
+	case GRUB_ACPI_MADT_ENTRY_TYPE_LAPIC:
+	  {
+	    struct grub_acpi_madt_entry_lapic *dt = (void *) d;
+	    grub_printf ("  LAPIC ACPI_ID=%02x APIC_ID=%02x Flags=%08x\n",
+			 dt->acpiid, dt->apicid, dt->flags);
+	    if (dt->hdr.len != sizeof (*dt))
+	      grub_printf ("   table size mismatch %d != %d\n", dt->hdr.len,
+			   (int) sizeof (*dt));
+	    break;
+	  }
+
+	case GRUB_ACPI_MADT_ENTRY_TYPE_IOAPIC:
+	  {
+	    struct grub_acpi_madt_entry_ioapic *dt = (void *) d;
+	    grub_printf ("  IOAPIC ID=%02x address=%08x GSI=%08x\n",
+			 dt->id, dt->address, dt->global_sys_interrupt);
+	    if (dt->hdr.len != sizeof (*dt))
+	      grub_printf ("   table size mismatch %d != %d\n", dt->hdr.len,
+			   (int) sizeof (*dt));
+	    if (dt->pad)
+	      grub_printf ("   non-zero pad: %02x\n", dt->pad);
+	    break;
+	  }
+
+	case GRUB_ACPI_MADT_ENTRY_TYPE_INTERRUPT_OVERRIDE:
+	  {
+	    struct grub_acpi_madt_entry_interrupt_override *dt = (void *) d;
+	    grub_printf ("  Int Override bus=%x src=%x GSI=%08x Flags=%04x\n",
+			 dt->bus, dt->source, dt->global_sys_interrupt,
+			 dt->flags);
+	    if (dt->hdr.len != sizeof (*dt))
+	      grub_printf ("   table size mismatch %d != %d\n", dt->hdr.len,
+			   (int) sizeof (*dt));
+	  }
+	  break;
+
+	case GRUB_ACPI_MADT_ENTRY_TYPE_LAPIC_NMI:
+	  {
+	    struct grub_acpi_madt_entry_lapic_nmi *dt = (void *) d;
+	    grub_printf ("  LAPIC_NMI ACPI_ID=%02x Flags=%04x lint=%02x\n",
+			 dt->acpiid, dt->flags, dt->lint);
+	    if (dt->hdr.len != sizeof (*dt))
+	      grub_printf ("   table size mismatch %d != %d\n", dt->hdr.len,
+			   (int) sizeof (*dt));
+	    break;
+	  }
+
+	case GRUB_ACPI_MADT_ENTRY_TYPE_SAPIC:
+	  {
+	    struct grub_acpi_madt_entry_sapic *dt = (void *) d;
+	    grub_printf ("  IOSAPIC Id=%02x GSI=%08x Addr=%016" PRIxGRUB_UINT64_T
+			 "\n",
+			 dt->id, dt->global_sys_interrupt_base,
+			 dt->addr);
+	    if (dt->hdr.len != sizeof (*dt))
+	      grub_printf ("   table size mismatch %d != %d\n", dt->hdr.len,
+			   (int) sizeof (*dt));
+	    if (dt->pad)
+	      grub_printf ("   non-zero pad: %02x\n", dt->pad);
+
+	  }
+	  break;
+	case GRUB_ACPI_MADT_ENTRY_TYPE_LSAPIC:
+	  {
+	    struct grub_acpi_madt_entry_lsapic *dt = (void *) d;
+	    grub_printf ("  LSAPIC ProcId=%02x ID=%02x EID=%02x Flags=%x",
+			 dt->cpu_id, dt->id, dt->eid, dt->flags);
+	    if (dt->flags & GRUB_ACPI_MADT_ENTRY_SAPIC_FLAGS_ENABLED)
+	      grub_printf (" Enabled\n");
+	    else
+	      grub_printf (" Disabled\n");
+	    if (d->len > sizeof (struct grub_acpi_madt_entry_sapic))
+	      grub_printf ("  UID val=%08x, Str=%s\n", dt->cpu_uid,
+			   dt->cpu_uid_str);
+	    if (dt->hdr.len != sizeof (*dt) + grub_strlen ((char *) dt->cpu_uid_str) + 1)
+	      grub_printf ("   table size mismatch %d != %d\n", dt->hdr.len,
+			   (int) sizeof (*dt));
+	    if (dt->pad[0] || dt->pad[1] || dt->pad[2])
+	      grub_printf ("   non-zero pad: %02x%02x%02x\n", dt->pad[0], dt->pad[1], dt->pad[2]);
+	  }
+	  break;
+	case GRUB_ACPI_MADT_ENTRY_TYPE_PLATFORM_INT_SOURCE:
+	  {
+	    struct grub_acpi_madt_entry_platform_int_source *dt = (void *) d;
+	    static const char * const platint_type[] =
+	      {"Nul", "PMI", "INIT", "CPEI"};
+
+	    grub_printf ("  Platform INT flags=%04x type=%02x (%s)"
+			 " ID=%02x EID=%02x\n",
+			 dt->flags, dt->inttype,
+			 (dt->inttype < ARRAY_SIZE (platint_type))
+			 ? platint_type[dt->inttype] : "??", dt->cpu_id,
+			 dt->cpu_eid);
+	    grub_printf ("  IOSAPIC Vec=%02x GSI=%08x source flags=%08x\n",
+			 dt->sapic_vector, dt->global_sys_int, dt->src_flags);
+	  }
+	  break;
+	default:
+	  grub_printf ("  type=%x l=%u ", d->type, d->len);
+	  grub_printf (" ??\n");
+	}
+    }
+}
+
+static void
+disp_acpi_xsdt_table (struct grub_acpi_table_header *t)
+{
+  grub_uint32_t len;
+  grub_uint64_t *desc;
+
+  disp_acpi_table (t);
+  len = t->length - sizeof (*t);
+  desc = (grub_uint64_t *) (t + 1);
+  for (; len >= sizeof (*desc); desc++, len -= sizeof (*desc))
+    {
+#if GRUB_CPU_SIZEOF_VOID_P == 4
+      if (*desc >= (1ULL << 32))
+	{
+	  grub_printf ("Unreachable table\n");
+	  continue;
+	}
+#endif
+      t = (struct grub_acpi_table_header *) (grub_addr_t) *desc;
+
+      if (t == NULL)
+	continue;
+
+      if (grub_memcmp (t->signature, GRUB_ACPI_MADT_SIGNATURE,
+		       sizeof (t->signature)) == 0)
+	disp_madt_table ((struct grub_acpi_madt *) t);
+      else
+	disp_acpi_table (t);
+    }
+}
+
+static void
+disp_acpi_rsdt_table (struct grub_acpi_table_header *t)
+{
+  grub_uint32_t len;
+  grub_uint32_t *desc;
+
+  disp_acpi_table (t);
+  len = t->length - sizeof (*t);
+  desc = (grub_uint32_t *) (t + 1);
+  for (; len >= sizeof (*desc); desc++, len -= sizeof (*desc))
+    {
+      t = (struct grub_acpi_table_header *) (grub_addr_t) *desc;
+
+      if (t == NULL)
+	continue;
+
+      if (grub_memcmp (t->signature, GRUB_ACPI_MADT_SIGNATURE,
+		       sizeof (t->signature)) == 0)
+	disp_madt_table ((struct grub_acpi_madt *) t);
+      else
+	disp_acpi_table (t);
+    }
+}
+
+static void
+disp_acpi_rsdpv1 (struct grub_acpi_rsdp_v10 *rsdp)
+{
+  print_field (rsdp->signature);
+  grub_printf ("chksum:%02x (%s), OEM-ID: ", rsdp->checksum, grub_byte_checksum (rsdp, sizeof (*rsdp)) == 0 ? "valid" : "invalid");
+  print_field (rsdp->oemid);
+  grub_printf ("rev=%d\n", rsdp->revision);
+  grub_printf ("RSDT=%08" PRIxGRUB_UINT32_T "\n", rsdp->rsdt_addr);
+}
+
+static void
+disp_acpi_rsdpv2 (struct grub_acpi_rsdp_v20 *rsdp)
+{
+  disp_acpi_rsdpv1 (&rsdp->rsdpv1);
+  grub_printf ("len=%d chksum=%02x (%s) XSDT=%016" PRIxGRUB_UINT64_T "\n", rsdp->length, rsdp->checksum, grub_byte_checksum (rsdp, rsdp->length) == 0 ? "valid" : "invalid",
+	       rsdp->xsdt_addr);
+  if (rsdp->length != sizeof (*rsdp))
+    grub_printf (" length mismatch %d != %d\n", rsdp->length,
+		 (int) sizeof (*rsdp));
+  if (rsdp->reserved[0] || rsdp->reserved[1] || rsdp->reserved[2])
+    grub_printf (" non-zero reserved %02x%02x%02x\n", rsdp->reserved[0], rsdp->reserved[1], rsdp->reserved[2]);
+}
+
+static const struct grub_arg_option options[] = {
+  {"v1", '1', 0, N_("Show version 1 tables only."), 0, ARG_TYPE_NONE},
+  {"v2", '2', 0, N_("Show version 2 and version 3 tables only."), 0, ARG_TYPE_NONE},
+  {0, 0, 0, 0, 0, 0}
+};
+
+static grub_err_t
+grub_cmd_lsacpi (struct grub_extcmd_context *ctxt,
+		 int argc __attribute__ ((unused)),
+		 char **args __attribute__ ((unused)))
+{
+  if (!ctxt->state[1].set)
+    {
+      struct grub_acpi_rsdp_v10 *rsdp1 = grub_acpi_get_rsdpv1 ();
+      if (!rsdp1)
+	grub_printf ("No RSDPv1\n");
+      else
+	{
+	  grub_printf ("RSDPv1 signature:");
+	  disp_acpi_rsdpv1 (rsdp1);
+	  disp_acpi_rsdt_table ((void *) (grub_addr_t) rsdp1->rsdt_addr);
+	}
+    }
+
+  if (!ctxt->state[0].set)
+    {
+      struct grub_acpi_rsdp_v20 *rsdp2 = grub_acpi_get_rsdpv2 ();
+      if (!rsdp2)
+	grub_printf ("No RSDPv2\n");
+      else
+	{
+#if GRUB_CPU_SIZEOF_VOID_P == 4
+	  if (rsdp2->xsdt_addr >= (1ULL << 32))
+	    grub_printf ("Unreachable RSDPv2\n");
+	  else
+#endif
+	    {
+	      grub_printf ("RSDPv2 signature:");
+	      disp_acpi_rsdpv2 (rsdp2);
+	      disp_acpi_xsdt_table ((void *) (grub_addr_t) rsdp2->xsdt_addr);
+	      grub_printf ("\n");
+	    }
+	}
+    }
+  return GRUB_ERR_NONE;
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT(lsapi)
+{
+  cmd = grub_register_extcmd ("lsacpi", grub_cmd_lsacpi, 0, "[-1|-2]",
+			      N_("Show ACPI information."), options);
+}
+
+GRUB_MOD_FINI(lsacpi)
+{
+  grub_unregister_extcmd (cmd);
+}
+
+
diff --git a/grub-core/commands/lsmmap.c b/grub-core/commands/lsmmap.c
new file mode 100644
index 0000000..816ee47
--- /dev/null
+++ b/grub-core/commands/lsmmap.c
@@ -0,0 +1,85 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2008  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+#include <grub/memory.h>
+#include <grub/mm.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+#ifndef GRUB_MACHINE_EMU
+static const char *names[] =
+  {
+    [GRUB_MEMORY_AVAILABLE] = N_("available RAM"),
+    [GRUB_MEMORY_RESERVED] = N_("reserved RAM"),
+    /* TRANSLATORS: this refers to memory where ACPI tables are stored
+       and which can be used by OS once it loads ACPI tables.  */
+    [GRUB_MEMORY_ACPI] = N_("ACPI reclaimable RAM"),
+    /* TRANSLATORS: this refers to memory which ACPI-compliant OS
+       is required to save accross hibernations.  */
+    [GRUB_MEMORY_NVS] = N_("ACPI non-volatile storage RAM"),
+    [GRUB_MEMORY_BADRAM] = N_("faulty RAM (BadRAM)"),
+    [GRUB_MEMORY_PERSISTENT] = N_("persistent RAM"),
+    [GRUB_MEMORY_PERSISTENT_LEGACY] = N_("persistent RAM (legacy)"),
+    [GRUB_MEMORY_COREBOOT_TABLES] = N_("RAM holding coreboot tables"),
+    [GRUB_MEMORY_CODE] = N_("RAM holding firmware code")
+  };
+
+/* Helper for grub_cmd_lsmmap.  */
+static int
+lsmmap_hook (grub_uint64_t addr, grub_uint64_t size, grub_memory_type_t type,
+	     void *data __attribute__ ((unused)))
+{
+  if (type < (int) ARRAY_SIZE (names) && type >= 0 && names[type])
+    grub_printf_ (N_("base_addr = 0x%llx, length = 0x%llx, %s\n"),
+		  (long long) addr, (long long) size, _(names[type]));
+  else
+    grub_printf_ (N_("base_addr = 0x%llx, length = 0x%llx, type = 0x%x\n"),
+		  (long long) addr, (long long) size, type);
+  return 0;
+}
+#endif
+
+static grub_err_t
+grub_cmd_lsmmap (grub_command_t cmd __attribute__ ((unused)),
+		 int argc __attribute__ ((unused)),
+		 char **args __attribute__ ((unused)))
+
+{
+#ifndef GRUB_MACHINE_EMU
+  grub_machine_mmap_iterate (lsmmap_hook, NULL);
+#endif
+
+  return 0;
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(lsmmap)
+{
+  cmd = grub_register_command ("lsmmap", grub_cmd_lsmmap,
+			       0, N_("List memory map provided by firmware."));
+}
+
+GRUB_MOD_FINI(lsmmap)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/lspci.c b/grub-core/commands/lspci.c
new file mode 100644
index 0000000..65213a3
--- /dev/null
+++ b/grub-core/commands/lspci.c
@@ -0,0 +1,238 @@
+/* lspci.c - List PCI devices.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2008, 2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/pci.h>
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/extcmd.h>
+#include <grub/i18n.h>
+#include <grub/mm.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+struct grub_pci_classname
+{
+  int class;
+  int subclass;
+  const char *desc;
+};
+
+static const struct grub_pci_classname grub_pci_classes[] =
+  {
+    { 0, 0, "" },
+    { 1, 0, "SCSI Controller" },
+    { 1, 1, "IDE Controller" },
+    { 1, 2, "Floppy Controller" },
+    { 1, 3, "IPI Controller" },
+    { 1, 4, "RAID Controller" },
+    { 1, 6, "SATA Controller" },
+    { 1, 0x80, "Mass storage Controller" },
+    { 2, 0, "Ethernet Controller" },
+    { 2, 1, "Token Ring Controller" },
+    { 2, 2, "FDDI Controller" },
+    { 2, 3, "ATM Controller" },
+    { 2, 4, "ISDN Controller" },
+    { 2, 0x80, "Network controller" },
+    { 3, 0, "VGA Controller" },
+    { 3, 1, "XGA Controller" },
+    { 3, 2, "3D Controller" },
+    { 3, 0x80, "Display Controller" },
+    { 4, 0, "Multimedia Video Device" },
+    { 4, 1, "Multimedia Audio Device" },
+    { 4, 2, "Multimedia Telephony Device" },
+    { 4, 0x80, "Multimedia device" },
+    { 5, 0, "RAM Controller" },
+    { 5, 1, "Flash Memory Controller" },
+    { 5, 0x80, "Memory Controller" },
+    { 6, 0, "Host Bridge" },
+    { 6, 1, "ISA Bridge" },
+    { 6, 2, "EISA Bride" },
+    { 6, 3, "MCA Bridge" },
+    { 6, 4, "PCI-PCI Bridge" },
+    { 6, 5, "PCMCIA Bridge" },
+    { 6, 6, "NuBus Bridge" },
+    { 6, 7, "CardBus Bridge" },
+    { 6, 8, "Raceway Bridge" },
+    { 6, 0x80, "Unknown Bridge" },
+    { 7, 0x80, "Communication controller" },
+    { 8, 0x80, "System hardware" },
+    { 9, 0, "Keyboard Controller" },
+    { 9, 1, "Digitizer" },
+    { 9, 2, "Mouse Controller" },
+    { 9, 3, "Scanner Controller" },
+    { 9, 4, "Gameport Controller" },
+    { 9, 0x80, "Unknown Input Device" },
+    { 10, 0, "Generic Docking Station" },
+    { 10, 0x80, "Unknown Docking Station" },
+    { 11, 0, "80386 Processor" },
+    { 11, 1, "80486 Processor" },
+    { 11, 2, "Pentium Processor" },
+    { 11, 0x10, "Alpha Processor" },
+    { 11, 0x20, "PowerPC Processor" },
+    { 11, 0x30, "MIPS Processor" },
+    { 11, 0x40, "Co-Processor" },
+    { 11, 0x80, "Unknown Processor" },
+    { 12, 3, "USB Controller" },
+    { 12, 0x80, "Serial Bus Controller" },
+    { 13, 0x80, "Wireless Controller" },
+    { 14, 0, "I2O" },
+    { 15, 0, "IrDA Controller" },
+    { 15, 1, "Consumer IR" },
+    { 15, 0x10, "RF-Controller" },
+    { 15, 0x80, "Satellite Communication Controller" },
+    { 16, 0, "Network Decryption" },
+    { 16, 1, "Entertainment Decryption" },
+    { 16, 0x80, "Unknown Decryption Controller" },
+    { 17, 0, "Digital IO Module" },
+    { 17, 0x80, "Unknown Data Input System" },
+    { 0, 0, 0 },
+  };
+
+static const char *
+grub_pci_get_class (int class, int subclass)
+{
+  const struct grub_pci_classname *curr = grub_pci_classes;
+
+  while (curr->desc)
+    {
+      if (curr->class == class && curr->subclass == subclass)
+	return curr->desc;
+      curr++;
+    }
+
+  return 0;
+}
+
+static const struct grub_arg_option options[] =
+  {
+    {"iospace", 'i', 0, "show I/O spaces", 0, 0},
+    {0, 0, 0, 0, 0, 0}
+  };
+
+static int iospace;
+
+static int
+grub_lspci_iter (grub_pci_device_t dev, grub_pci_id_t pciid,
+		 void *data __attribute__ ((unused)))
+{
+  grub_uint32_t class;
+  const char *sclass;
+  grub_pci_address_t addr;
+  int reg;
+
+  grub_printf ("%02x:%02x.%x %04x:%04x", grub_pci_get_bus (dev),
+	       grub_pci_get_device (dev), grub_pci_get_function (dev),
+	       pciid & 0xFFFF, pciid >> 16);
+  addr = grub_pci_make_address (dev, GRUB_PCI_REG_CLASS);
+  class = grub_pci_read (addr);
+
+  /* Lookup the class name, if there isn't a specific one,
+     retry with 0x80 to get the generic class name.  */
+  sclass = grub_pci_get_class (class >> 24, (class >> 16) & 0xFF);
+  if (! sclass)
+    sclass = grub_pci_get_class (class >> 24, 0x80);
+  if (! sclass)
+    sclass = "";
+
+  grub_printf (" [%04x] %s", (class >> 16) & 0xffff, sclass);
+
+  grub_uint8_t pi = (class >> 8) & 0xff;
+  if (pi)
+    grub_printf (" [PI %02x]", pi);
+
+  grub_printf ("\n");
+
+  if (iospace)
+    {
+      reg = GRUB_PCI_REG_ADDRESSES;
+      while (reg < GRUB_PCI_REG_CIS_POINTER)
+	{
+	  grub_uint64_t space;
+	  addr = grub_pci_make_address (dev, reg);
+	  space = grub_pci_read (addr);
+
+	  reg += sizeof (grub_uint32_t);
+
+	  if (space == 0)
+	    continue;
+	 
+	  switch (space & GRUB_PCI_ADDR_SPACE_MASK)
+	    {
+	    case GRUB_PCI_ADDR_SPACE_IO:
+	      grub_printf ("\tIO space %d at 0x%llx\n",
+			   (unsigned) ((reg - GRUB_PCI_REG_ADDRESSES)
+			    / sizeof (grub_uint32_t)) - 1,
+			   (unsigned long long)
+			   (space & GRUB_PCI_ADDR_IO_MASK));
+	      break;
+	    case GRUB_PCI_ADDR_SPACE_MEMORY:
+	      if ((space & GRUB_PCI_ADDR_MEM_TYPE_MASK)
+		  == GRUB_PCI_ADDR_MEM_TYPE_64)
+		{
+		  addr = grub_pci_make_address (dev, reg);
+		  space |= ((grub_uint64_t) grub_pci_read (addr)) << 32;
+		  reg += sizeof (grub_uint32_t);
+		  grub_printf ("\t64-bit memory space %d at 0x%016llx [%s]\n",
+			       (unsigned) ((reg - GRUB_PCI_REG_ADDRESSES)
+				/ sizeof (grub_uint32_t)) - 2,
+			       (unsigned long long)
+			       (space & GRUB_PCI_ADDR_MEM_MASK),
+			       space & GRUB_PCI_ADDR_MEM_PREFETCH
+			       ? "prefetchable" : "non-prefetchable");
+		 
+		}
+	      else
+		grub_printf ("\t32-bit memory space %d at 0x%016llx [%s]\n",
+			     (unsigned) ((reg - GRUB_PCI_REG_ADDRESSES)
+			      / sizeof (grub_uint32_t)) - 1,
+			     (unsigned long long) 
+			     (space & GRUB_PCI_ADDR_MEM_MASK),
+			     space & GRUB_PCI_ADDR_MEM_PREFETCH
+			     ? "prefetchable" : "non-prefetchable");
+	      break;
+	    }
+	}
+    }
+
+
+  return 0;
+}
+
+static grub_err_t
+grub_cmd_lspci (grub_extcmd_context_t ctxt,
+		int argc __attribute__ ((unused)),
+		char **args __attribute__ ((unused)))
+{
+  iospace = ctxt->state[0].set;
+  grub_pci_iterate (grub_lspci_iter, NULL);
+  return GRUB_ERR_NONE;
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT(lspci)
+{
+  cmd = grub_register_extcmd ("lspci", grub_cmd_lspci, 0, "[-i]",
+			      N_("List PCI devices."), options);
+}
+
+GRUB_MOD_FINI(lspci)
+{
+  grub_unregister_extcmd (cmd);
+}
diff --git a/grub-core/commands/macbless.c b/grub-core/commands/macbless.c
new file mode 100644
index 0000000..85cefd0
--- /dev/null
+++ b/grub-core/commands/macbless.c
@@ -0,0 +1,235 @@
+/* hfspbless.c - set the hfs+ boot directory.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2003,2005,2007,2008,2009,2012,2013  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/command.h>
+#include <grub/fs.h>
+#include <grub/misc.h>
+#include <grub/dl.h>
+#include <grub/device.h>
+#include <grub/disk.h>
+#include <grub/hfsplus.h>
+#include <grub/hfs.h>
+#include <grub/partition.h>
+#include <grub/file.h>
+#include <grub/mm.h>
+#include <grub/err.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+struct find_node_context
+{
+  grub_uint64_t inode_found;
+  char *dirname;
+  enum
+  { FOUND_NONE, FOUND_FILE, FOUND_DIR } found;
+};
+
+static int
+find_inode (const char *filename,
+	    const struct grub_dirhook_info *info, void *data)
+{
+  struct find_node_context *ctx = data;
+  if (!info->inodeset)
+    return 0;
+
+  if ((grub_strcmp (ctx->dirname, filename) == 0
+       || (info->case_insensitive
+	   && grub_strcasecmp (ctx->dirname, filename) == 0)))
+    {
+      ctx->inode_found = info->inode;
+      ctx->found = info->dir ? FOUND_DIR : FOUND_FILE;
+    }
+  return 0;
+}
+
+grub_err_t
+grub_mac_bless_inode (grub_device_t dev, grub_uint32_t inode, int is_dir,
+		      int intel)
+{
+  grub_err_t err;
+  union
+  {
+    struct grub_hfs_sblock hfs;
+    struct grub_hfsplus_volheader hfsplus;
+  } volheader;
+  grub_disk_addr_t embedded_offset;
+
+  if (intel && is_dir)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT,
+		       "can't bless a directory for mactel");
+  if (!intel && !is_dir)
+    return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
+		       "can't bless a file for mac PPC");
+
+  /* Read the bootblock.  */
+  err = grub_disk_read (dev->disk, GRUB_HFSPLUS_SBLOCK, 0, sizeof (volheader),
+			(char *) &volheader);
+  if (err)
+    return err;
+
+  embedded_offset = 0;
+  if (grub_be_to_cpu16 (volheader.hfs.magic) == GRUB_HFS_MAGIC)
+    {
+      int extent_start;
+      int ablk_size;
+      int ablk_start;
+
+      /* See if there's an embedded HFS+ filesystem.  */
+      if (grub_be_to_cpu16 (volheader.hfs.embed_sig) != GRUB_HFSPLUS_MAGIC)
+	{
+	  if (intel)
+	    volheader.hfs.intel_bootfile = grub_be_to_cpu32 (inode);
+	  else
+	    volheader.hfs.ppc_bootdir = grub_be_to_cpu32 (inode);
+	  return GRUB_ERR_NONE;
+	}
+
+      /* Calculate the offset needed to translate HFS+ sector numbers.  */
+      extent_start =
+	grub_be_to_cpu16 (volheader.hfs.embed_extent.first_block);
+      ablk_size = grub_be_to_cpu32 (volheader.hfs.blksz);
+      ablk_start = grub_be_to_cpu16 (volheader.hfs.first_block);
+      embedded_offset = (ablk_start
+			 + ((grub_uint64_t) extent_start)
+			 * (ablk_size >> GRUB_DISK_SECTOR_BITS));
+
+      err =
+	grub_disk_read (dev->disk, embedded_offset + GRUB_HFSPLUS_SBLOCK, 0,
+			sizeof (volheader), (char *) &volheader);
+      if (err)
+	return err;
+    }
+
+  if ((grub_be_to_cpu16 (volheader.hfsplus.magic) != GRUB_HFSPLUS_MAGIC)
+      && (grub_be_to_cpu16 (volheader.hfsplus.magic) != GRUB_HFSPLUSX_MAGIC))
+    return grub_error (GRUB_ERR_BAD_FS, "not a HFS+ filesystem");
+  if (intel)
+    volheader.hfsplus.intel_bootfile = grub_be_to_cpu32 (inode);
+  else
+    volheader.hfsplus.ppc_bootdir = grub_be_to_cpu32 (inode);
+
+  return grub_disk_write (dev->disk, embedded_offset + GRUB_HFSPLUS_SBLOCK, 0,
+			  sizeof (volheader), (char *) &volheader);
+}
+
+grub_err_t
+grub_mac_bless_file (grub_device_t dev, const char *path_in, int intel)
+{
+  grub_fs_t fs;
+
+  char *path, *tail;
+  struct find_node_context ctx;
+
+  fs = grub_fs_probe (dev);
+  if (!fs || (grub_strcmp (fs->name, "hfsplus") != 0
+	      && grub_strcmp (fs->name, "hfs") != 0))
+    return grub_error (GRUB_ERR_BAD_FS, "no suitable FS found");
+
+  path = grub_strdup (path_in);
+  if (!path)
+    return grub_errno;
+
+  tail = path + grub_strlen (path) - 1;
+
+  /* Remove trailing '/'. */
+  while (tail != path && *tail == '/')
+    *(tail--) = 0;
+
+  tail = grub_strrchr (path, '/');
+  ctx.found = 0;
+
+  if (tail)
+    {
+      *tail = 0;
+      ctx.dirname = tail + 1;
+
+      (fs->fs_dir) (dev, *path == 0 ? "/" : path, find_inode, &ctx);
+    }
+  else
+    {
+      ctx.dirname = path + 1;
+      (fs->fs_dir) (dev, "/", find_inode, &ctx);
+    }
+  if (!ctx.found)
+    {
+      grub_free (path);
+      return grub_error (GRUB_ERR_FILE_NOT_FOUND, N_("file `%s' not found"),
+			 path_in);
+    }
+  grub_free (path);
+
+  return grub_mac_bless_inode (dev, (grub_uint32_t) ctx.inode_found,
+			       (ctx.found == FOUND_DIR), intel);
+}
+
+static grub_err_t
+grub_cmd_macbless (grub_command_t cmd, int argc, char **args)
+{
+  char *device_name;
+  char *path = 0;
+  grub_device_t dev = 0;
+  grub_err_t err;
+
+  if (argc != 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected"));
+  device_name = grub_file_get_device_name (args[0]);
+  dev = grub_device_open (device_name);
+
+  path = grub_strchr (args[0], ')');
+  if (!path)
+    path = args[0];
+  else
+    path = path + 1;
+
+  if (!path || *path == 0 || !dev)
+    {
+      if (dev)
+	grub_device_close (dev);
+
+      grub_free (device_name);
+
+      return grub_error (GRUB_ERR_BAD_ARGUMENT, "invalid argument");
+    }
+
+  err = grub_mac_bless_file (dev, path, cmd->name[3] == 't');
+
+  grub_device_close (dev);
+  grub_free (device_name);
+  return err;
+}
+
+static grub_command_t cmd, cmd_ppc;
+
+GRUB_MOD_INIT(macbless)
+{
+  cmd = grub_register_command ("mactelbless", grub_cmd_macbless,
+			       N_("FILE"),
+			       N_
+			       ("Bless FILE of HFS or HFS+ partition for intel macs."));
+  cmd_ppc =
+    grub_register_command ("macppcbless", grub_cmd_macbless, N_("DIR"),
+			   N_
+			   ("Bless DIR of HFS or HFS+ partition for PPC macs."));
+}
+
+GRUB_MOD_FINI(macbless)
+{
+  grub_unregister_command (cmd);
+  grub_unregister_command (cmd_ppc);
+}
diff --git a/grub-core/commands/memrw.c b/grub-core/commands/memrw.c
new file mode 100644
index 0000000..d401a6d
--- /dev/null
+++ b/grub-core/commands/memrw.c
@@ -0,0 +1,158 @@
+/* memrw.c - command to read / write physical memory  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/extcmd.h>
+#include <grub/env.h>
+#include <grub/i18n.h>
+#include <grub/lockdown.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_extcmd_t cmd_read_byte, cmd_read_word, cmd_read_dword;
+static grub_command_t cmd_write_byte, cmd_write_word, cmd_write_dword;
+
+static const struct grub_arg_option options[] =
+  {
+    {0, 'v', 0, N_("Save read value into variable VARNAME."),
+     N_("VARNAME"), ARG_TYPE_STRING},
+    {0, 0, 0, 0, 0, 0}
+  };
+
+
+static grub_err_t
+grub_cmd_read (grub_extcmd_context_t ctxt, int argc, char **argv)
+{
+  grub_addr_t addr;
+  grub_uint32_t value = 0;
+  char buf[sizeof ("XXXXXXXX")];
+
+  if (argc != 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected"));
+
+  addr = grub_strtoul (argv[0], 0, 0);
+  switch (ctxt->extcmd->cmd->name[sizeof ("read_") - 1])
+    {
+    case 'd':
+      value = *((volatile grub_uint32_t *) addr);
+      break;
+
+    case 'w':
+      value = *((volatile grub_uint16_t *) addr);
+      break;
+
+    case 'b':
+      value = *((volatile grub_uint8_t *) addr);
+      break;
+    }
+
+  if (ctxt->state[0].set)
+    {
+      grub_snprintf (buf, sizeof (buf), "%x", value);
+      grub_env_set (ctxt->state[0].arg, buf);
+    }
+  else
+    grub_printf ("0x%x\n", value);
+
+  return 0;
+}
+
+static grub_err_t
+grub_cmd_write (grub_command_t cmd, int argc, char **argv)
+{
+  grub_addr_t addr;
+  grub_uint32_t value;
+  grub_uint32_t mask = 0xffffffff;
+
+  if (argc != 2 && argc != 3)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("two arguments expected"));
+
+  addr = grub_strtoul (argv[0], 0, 0);
+  value = grub_strtoul (argv[1], 0, 0);
+  if (argc == 3)
+    mask = grub_strtoul (argv[2], 0, 0);
+  value &= mask;
+  switch (cmd->name[sizeof ("write_") - 1])
+    {
+    case 'd':
+      if (mask != 0xffffffff)
+	*((volatile grub_uint32_t *) addr)
+	  = (*((volatile grub_uint32_t *) addr) & ~mask) | value;
+      else
+	*((volatile grub_uint32_t *) addr) = value;
+      break;
+
+    case 'w':
+      if ((mask & 0xffff) != 0xffff)
+	*((volatile grub_uint16_t *) addr)
+	  = (*((volatile grub_uint16_t *) addr) & ~mask) | value;
+      else
+	*((volatile grub_uint16_t *) addr) = value;
+      break;
+
+    case 'b':
+      if ((mask & 0xff) != 0xff)
+	*((volatile grub_uint8_t *) addr)
+	  = (*((volatile grub_uint8_t *) addr) & ~mask) | value;
+      else
+	*((volatile grub_uint8_t *) addr) = value;
+      break;
+    }
+
+  return 0;
+}
+
+GRUB_MOD_INIT(memrw)
+{
+  cmd_read_byte =
+    grub_register_extcmd ("read_byte", grub_cmd_read, 0,
+			  N_("ADDR"), N_("Read 8-bit value from ADDR."),
+			  options);
+  cmd_read_word =
+    grub_register_extcmd ("read_word", grub_cmd_read, 0,
+			  N_("ADDR"), N_("Read 16-bit value from ADDR."),
+			  options);
+  cmd_read_dword =
+    grub_register_extcmd ("read_dword", grub_cmd_read, 0,
+			  N_("ADDR"), N_("Read 32-bit value from ADDR."),
+			  options);
+  cmd_write_byte =
+    grub_register_command_lockdown ("write_byte", grub_cmd_write,
+                                    N_("ADDR VALUE [MASK]"),
+                                    N_("Write 8-bit VALUE to ADDR."));
+  cmd_write_word =
+    grub_register_command_lockdown ("write_word", grub_cmd_write,
+                                    N_("ADDR VALUE [MASK]"),
+                                    N_("Write 16-bit VALUE to ADDR."));
+  cmd_write_dword =
+    grub_register_command_lockdown ("write_dword", grub_cmd_write,
+                                    N_("ADDR VALUE [MASK]"),
+                                    N_("Write 32-bit VALUE to ADDR."));
+}
+
+GRUB_MOD_FINI(memrw)
+{
+  grub_unregister_extcmd (cmd_read_byte);
+  grub_unregister_extcmd (cmd_read_word);
+  grub_unregister_extcmd (cmd_read_dword);
+  grub_unregister_command (cmd_write_byte);
+  grub_unregister_command (cmd_write_word);
+  grub_unregister_command (cmd_write_dword);
+}
diff --git a/grub-core/commands/menuentry.c b/grub-core/commands/menuentry.c
new file mode 100644
index 0000000..720e6d8
--- /dev/null
+++ b/grub-core/commands/menuentry.c
@@ -0,0 +1,337 @@
+/* menuentry.c - menuentry command */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2010  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/err.h>
+#include <grub/dl.h>
+#include <grub/extcmd.h>
+#include <grub/i18n.h>
+#include <grub/normal.h>
+
+static const struct grub_arg_option options[] =
+  {
+    {"class", 1, GRUB_ARG_OPTION_REPEATABLE,
+     N_("Menu entry type."), N_("STRING"), ARG_TYPE_STRING},
+    {"users", 2, 0,
+     N_("List of users allowed to boot this entry."), N_("USERNAME[,USERNAME]"),
+     ARG_TYPE_STRING},
+    {"hotkey", 3, 0,
+     N_("Keyboard key to quickly boot this entry."), N_("KEYBOARD_KEY"), ARG_TYPE_STRING},
+    {"source", 4, 0,
+     N_("Use STRING as menu entry body."), N_("STRING"), ARG_TYPE_STRING},
+    {"id", 0, 0, N_("Menu entry identifier."), N_("STRING"), ARG_TYPE_STRING},
+    /* TRANSLATORS: menu entry can either be bootable by anyone or only by
+       handful of users. By default when security is active only superusers can
+       boot a given menu entry. With --unrestricted (this option)
+       anyone can boot it.  */
+    {"unrestricted", 0, 0, N_("This entry can be booted by any user."),
+     0, ARG_TYPE_NONE},
+    {0, 0, 0, 0, 0, 0}
+  };
+
+static struct
+{
+  const char *name;
+  int key;
+} hotkey_aliases[] =
+  {
+    {"backspace", GRUB_TERM_BACKSPACE},
+    {"tab", GRUB_TERM_TAB},
+    {"delete", GRUB_TERM_KEY_DC},
+    {"insert", GRUB_TERM_KEY_INSERT},
+    {"f1", GRUB_TERM_KEY_F1},
+    {"f2", GRUB_TERM_KEY_F2},
+    {"f3", GRUB_TERM_KEY_F3},
+    {"f4", GRUB_TERM_KEY_F4},
+    {"f5", GRUB_TERM_KEY_F5},
+    {"f6", GRUB_TERM_KEY_F6},
+    {"f7", GRUB_TERM_KEY_F7},
+    {"f8", GRUB_TERM_KEY_F8},
+    {"f9", GRUB_TERM_KEY_F9},
+    {"f10", GRUB_TERM_KEY_F10},
+    {"f11", GRUB_TERM_KEY_F11},
+    {"f12", GRUB_TERM_KEY_F12},
+  };
+
+/* Add a menu entry to the current menu context (as given by the environment
+   variable data slot `menu').  As the configuration file is read, the script
+   parser calls this when a menu entry is to be created.  */
+grub_err_t
+grub_normal_add_menu_entry (int argc, const char **args,
+			    char **classes, const char *id,
+			    const char *users, const char *hotkey,
+			    const char *prefix, const char *sourcecode,
+			    int submenu)
+{
+  int menu_hotkey = 0;
+  char **menu_args = NULL;
+  char *menu_users = NULL;
+  char *menu_title = NULL;
+  char *menu_sourcecode = NULL;
+  char *menu_id = NULL;
+  struct grub_menu_entry_class *menu_classes = NULL;
+
+  grub_menu_t menu;
+  grub_menu_entry_t *last;
+
+  menu = grub_env_get_menu ();
+  if (! menu)
+    return grub_error (GRUB_ERR_MENU, "no menu context");
+
+  last = &menu->entry_list;
+
+  menu_sourcecode = grub_xasprintf ("%s%s", prefix ?: "", sourcecode);
+  if (! menu_sourcecode)
+    return grub_errno;
+
+  if (classes && classes[0])
+    {
+      int i;
+      for (i = 0; classes[i]; i++); /* count # of menuentry classes */
+      menu_classes = grub_zalloc (sizeof (struct grub_menu_entry_class)
+				  * (i + 1));
+      if (! menu_classes)
+	goto fail;
+
+      for (i = 0; classes[i]; i++)
+	{
+	  menu_classes[i].name = grub_strdup (classes[i]);
+	  if (! menu_classes[i].name)
+	    goto fail;
+	  menu_classes[i].next = classes[i + 1] ? &menu_classes[i + 1] : NULL;
+	}
+    }
+
+  if (users)
+    {
+      menu_users = grub_strdup (users);
+      if (! menu_users)
+	goto fail;
+    }
+
+  if (hotkey)
+    {
+      unsigned i;
+      for (i = 0; i < ARRAY_SIZE (hotkey_aliases); i++)
+	if (grub_strcmp (hotkey, hotkey_aliases[i].name) == 0)
+	  {
+	    menu_hotkey = hotkey_aliases[i].key;
+	    break;
+	  }
+      if (i == ARRAY_SIZE (hotkey_aliases))
+	menu_hotkey = hotkey[0];
+    }
+
+  if (! argc)
+    {
+      grub_error (GRUB_ERR_MENU, "menuentry is missing title");
+      goto fail;
+    }
+
+  menu_title = grub_strdup (args[0]);
+  if (! menu_title)
+    goto fail;
+
+  menu_id = grub_strdup (id ? : menu_title);
+  if (! menu_id)
+    goto fail;
+
+  /* Save argc, args to pass as parameters to block arg later. */
+  menu_args = grub_calloc (argc + 1, sizeof (char *));
+  if (! menu_args)
+    goto fail;
+
+  {
+    int i;
+    for (i = 0; i < argc; i++)
+      {
+	menu_args[i] = grub_strdup (args[i]);
+	if (! menu_args[i])
+	  goto fail;
+      }
+    menu_args[argc] = NULL;
+  }
+
+  /* Add the menu entry at the end of the list.  */
+  while (*last)
+    last = &(*last)->next;
+
+  *last = grub_zalloc (sizeof (**last));
+  if (! *last)
+    goto fail;
+
+  (*last)->title = menu_title;
+  (*last)->id = menu_id;
+  (*last)->hotkey = menu_hotkey;
+  (*last)->classes = menu_classes;
+  if (menu_users)
+    (*last)->restricted = 1;
+  (*last)->users = menu_users;
+  (*last)->argc = argc;
+  (*last)->args = menu_args;
+  (*last)->sourcecode = menu_sourcecode;
+  (*last)->submenu = submenu;
+
+  menu->size++;
+  return GRUB_ERR_NONE;
+
+ fail:
+
+  grub_free (menu_sourcecode);
+  {
+    int i;
+    for (i = 0; menu_classes && menu_classes[i].name; i++)
+      grub_free (menu_classes[i].name);
+    grub_free (menu_classes);
+  }
+
+  {
+    int i;
+    for (i = 0; menu_args && menu_args[i]; i++)
+      grub_free (menu_args[i]);
+    grub_free (menu_args);
+  }
+
+  grub_free (menu_users);
+  grub_free (menu_title);
+  grub_free (menu_id);
+  return grub_errno;
+}
+
+static char *
+setparams_prefix (int argc, char **args)
+{
+  int i;
+  int j;
+  char *p;
+  char *result;
+  grub_size_t len = 10;
+
+  /* Count resulting string length */
+  for (i = 0; i < argc; i++)
+    {
+      len += 3; /* 3 = 1 space + 2 quotes */
+      p = args[i];
+      while (*p)
+	len += (*p++ == '\'' ? 4 : 1);
+    }
+
+  result = grub_malloc (len + 2);
+  if (! result)
+    return 0;
+
+  grub_strcpy (result, "setparams");
+  p = result + 9;
+
+  for (j = 0; j < argc; j++)
+    {
+      *p++ = ' ';
+      *p++ = '\'';
+      p = grub_strchrsub (p, args[j], '\'', "'\\''");
+      *p++ = '\'';
+    }
+  *p++ = '\n';
+  *p = '\0';
+  return result;
+}
+
+static grub_err_t
+grub_cmd_menuentry (grub_extcmd_context_t ctxt, int argc, char **args)
+{
+  char ch;
+  char *src;
+  char *prefix;
+  unsigned len;
+  grub_err_t r;
+  const char *users;
+
+  if (! argc)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "missing arguments");
+
+  if (ctxt->state[3].set && ctxt->script)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "multiple menuentry definitions");
+
+  if (! ctxt->state[3].set && ! ctxt->script)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "no menuentry definition");
+
+  if (ctxt->state[1].set)
+    users = ctxt->state[1].arg;
+  else if (ctxt->state[5].set)
+    users = NULL;
+  else
+    users = "";
+
+  if (! ctxt->script)
+    return grub_normal_add_menu_entry (argc, (const char **) args,
+				       (ctxt->state[0].set ? ctxt->state[0].args
+					: NULL),
+				       ctxt->state[4].arg,
+				       users,
+				       ctxt->state[2].arg, 0,
+				       ctxt->state[3].arg,
+				       ctxt->extcmd->cmd->name[0] == 's');
+
+  src = args[argc - 1];
+  args[argc - 1] = NULL;
+
+  len = grub_strlen(src);
+  ch = src[len - 1];
+  src[len - 1] = '\0';
+
+  prefix = setparams_prefix (argc - 1, args);
+  if (! prefix)
+    return grub_errno;
+
+  r = grub_normal_add_menu_entry (argc - 1, (const char **) args,
+				  ctxt->state[0].args, ctxt->state[4].arg,
+				  users,
+				  ctxt->state[2].arg, prefix, src + 1,
+				  ctxt->extcmd->cmd->name[0] == 's');
+
+  src[len - 1] = ch;
+  args[argc - 1] = src;
+  grub_free (prefix);
+  return r;
+}
+
+static grub_extcmd_t cmd, cmd_sub;
+
+void
+grub_menu_init (void)
+{
+  cmd = grub_register_extcmd ("menuentry", grub_cmd_menuentry,
+			      GRUB_COMMAND_FLAG_BLOCKS
+			      | GRUB_COMMAND_ACCEPT_DASH
+			      | GRUB_COMMAND_FLAG_EXTRACTOR,
+			      N_("BLOCK"), N_("Define a menu entry."), options);
+  cmd_sub = grub_register_extcmd ("submenu", grub_cmd_menuentry,
+				  GRUB_COMMAND_FLAG_BLOCKS
+				  | GRUB_COMMAND_ACCEPT_DASH
+				  | GRUB_COMMAND_FLAG_EXTRACTOR,
+				  N_("BLOCK"), N_("Define a submenu."),
+				  options);
+}
+
+void
+grub_menu_fini (void)
+{
+  grub_unregister_extcmd (cmd);
+  grub_unregister_extcmd (cmd_sub);
+}
diff --git a/grub-core/commands/minicmd.c b/grub-core/commands/minicmd.c
new file mode 100644
index 0000000..fa49893
--- /dev/null
+++ b/grub-core/commands/minicmd.c
@@ -0,0 +1,227 @@
+/* minicmd.c - commands for the rescue mode */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2003,2005,2006,2007,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/mm.h>
+#include <grub/err.h>
+#include <grub/env.h>
+#include <grub/misc.h>
+#include <grub/file.h>
+#include <grub/disk.h>
+#include <grub/term.h>
+#include <grub/loader.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+/* cat FILE */
+static grub_err_t
+grub_mini_cmd_cat (struct grub_command *cmd __attribute__ ((unused)),
+		   int argc, char *argv[])
+{
+  grub_file_t file;
+  char buf[GRUB_DISK_SECTOR_SIZE];
+  grub_ssize_t size;
+
+  if (argc < 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+
+  file = grub_file_open (argv[0], GRUB_FILE_TYPE_CAT);
+  if (! file)
+    return grub_errno;
+
+  while ((size = grub_file_read (file, buf, sizeof (buf))) > 0)
+    {
+      int i;
+
+      for (i = 0; i < size; i++)
+	{
+	  unsigned char c = buf[i];
+
+	  if ((grub_isprint (c) || grub_isspace (c)) && c != '\r')
+	    grub_printf ("%c", c);
+	  else
+	    {
+	      grub_setcolorstate (GRUB_TERM_COLOR_HIGHLIGHT);
+	      grub_printf ("<%x>", (int) c);
+	      grub_setcolorstate (GRUB_TERM_COLOR_STANDARD);
+	    }
+	}
+    }
+
+  grub_xputs ("\n");
+  grub_refresh ();
+  grub_file_close (file);
+
+  return 0;
+}
+
+/* help */
+static grub_err_t
+grub_mini_cmd_help (struct grub_command *cmd __attribute__ ((unused)),
+		    int argc __attribute__ ((unused)),
+		    char *argv[] __attribute__ ((unused)))
+{
+  grub_command_t p;
+
+  for (p = grub_command_list; p; p = p->next)
+    grub_printf ("%s (%d%c)\t%s\n", p->name,
+		 p->prio & GRUB_COMMAND_PRIO_MASK,
+		 (p->prio & GRUB_COMMAND_FLAG_ACTIVE) ? '+' : '-',
+		 p->description);
+
+  return 0;
+}
+
+/* dump ADDRESS [SIZE] */
+static grub_err_t
+grub_mini_cmd_dump (struct grub_command *cmd __attribute__ ((unused)),
+		    int argc, char *argv[])
+{
+  grub_uint8_t *addr;
+  grub_size_t size = 4;
+
+  if (argc == 0)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "no address specified");
+
+#if GRUB_CPU_SIZEOF_VOID_P == GRUB_CPU_SIZEOF_LONG
+#define grub_strtoaddr grub_strtoul
+#else
+#define grub_strtoaddr grub_strtoull
+#endif
+
+  addr = (grub_uint8_t *) grub_strtoaddr (argv[0], 0, 0);
+  if (grub_errno)
+    return grub_errno;
+
+  if (argc > 1)
+    size = (grub_size_t) grub_strtoaddr (argv[1], 0, 0);
+
+  while (size--)
+    {
+      grub_printf ("%x%x ", *addr >> 4, *addr & 0xf);
+      addr++;
+    }
+
+  return 0;
+}
+
+/* rmmod MODULE */
+static grub_err_t
+grub_mini_cmd_rmmod (struct grub_command *cmd __attribute__ ((unused)),
+		     int argc, char *argv[])
+{
+  grub_dl_t mod;
+
+  if (argc == 0)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "no module specified");
+
+  mod = grub_dl_get (argv[0]);
+  if (! mod)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "no such module");
+
+  if (grub_dl_is_persistent (mod))
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "cannot unload persistent module");
+
+  if (grub_dl_ref_count (mod) > 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "cannot unload referenced module");
+
+  grub_dl_unref (mod);
+  grub_dl_unload (mod);
+
+  return 0;
+}
+
+/* lsmod */
+static grub_err_t
+grub_mini_cmd_lsmod (struct grub_command *cmd __attribute__ ((unused)),
+		     int argc __attribute__ ((unused)),
+		     char *argv[] __attribute__ ((unused)))
+{
+  grub_dl_t mod;
+
+  /* TRANSLATORS: this is module list header.  Name
+     is module name, Ref Count is a reference counter
+     (how many modules or open descriptors use it).
+     Dependencies are the other modules it uses.
+   */
+  grub_printf_ (N_("Name\tRef Count\tDependencies\n"));
+  FOR_DL_MODULES (mod)
+  {
+    grub_dl_dep_t dep;
+
+    grub_printf ("%s\t%d\t\t", mod->name, mod->ref_count);
+    for (dep = mod->dep; dep; dep = dep->next)
+      {
+	if (dep != mod->dep)
+	  grub_xputs (",");
+
+	grub_printf ("%s", dep->mod->name);
+      }
+    grub_xputs ("\n");
+  }
+
+  return 0;
+}
+
+/* exit */
+static grub_err_t __attribute__ ((noreturn))
+grub_mini_cmd_exit (struct grub_command *cmd __attribute__ ((unused)),
+		    int argc __attribute__ ((unused)),
+		    char *argv[] __attribute__ ((unused)))
+{
+  grub_exit ();
+  /* Not reached.  */
+}
+
+static grub_command_t cmd_cat, cmd_help;
+static grub_command_t cmd_dump, cmd_rmmod, cmd_lsmod, cmd_exit;
+
+GRUB_MOD_INIT(minicmd)
+{
+  cmd_cat =
+    grub_register_command ("cat", grub_mini_cmd_cat,
+			   N_("FILE"), N_("Show the contents of a file."));
+  cmd_help =
+    grub_register_command ("help", grub_mini_cmd_help,
+			   0, N_("Show this message."));
+  cmd_dump =
+    grub_register_command ("dump", grub_mini_cmd_dump,
+			   N_("ADDR [SIZE]"), N_("Show memory contents."));
+  cmd_rmmod =
+    grub_register_command ("rmmod", grub_mini_cmd_rmmod,
+			   N_("MODULE"), N_("Remove a module."));
+  cmd_lsmod =
+    grub_register_command ("lsmod", grub_mini_cmd_lsmod,
+			   0, N_("Show loaded modules."));
+  cmd_exit =
+    grub_register_command ("exit", grub_mini_cmd_exit,
+			   0, N_("Exit from GRUB."));
+}
+
+GRUB_MOD_FINI(minicmd)
+{
+  grub_unregister_command (cmd_cat);
+  grub_unregister_command (cmd_help);
+  grub_unregister_command (cmd_dump);
+  grub_unregister_command (cmd_rmmod);
+  grub_unregister_command (cmd_lsmod);
+  grub_unregister_command (cmd_exit);
+}
diff --git a/grub-core/commands/mips/loongson/lsspd.c b/grub-core/commands/mips/loongson/lsspd.c
new file mode 100644
index 0000000..a88ab87
--- /dev/null
+++ b/grub-core/commands/mips/loongson/lsspd.c
@@ -0,0 +1,103 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2010  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/err.h>
+#include <grub/dl.h>
+#include <grub/command.h>
+#include <grub/cs5536.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_err_t
+grub_cmd_lsspd (grub_command_t cmd __attribute__ ((unused)),
+		int argc __attribute__ ((unused)),
+		char **args __attribute__ ((unused)))
+{
+  grub_pci_device_t dev;
+  grub_port_t smbbase;
+  int i;
+  grub_err_t err;
+
+  if (!grub_cs5536_find (&dev))
+    {
+      grub_puts_ (N_("No CS5536 found"));
+      return GRUB_ERR_NONE;
+    }
+  grub_printf_ (N_("CS5536 at %d:%d.%d\n"), grub_pci_get_bus (dev),
+		grub_pci_get_device (dev), grub_pci_get_function (dev));
+  
+  err = grub_cs5536_init_smbus (dev, 0x7fff, &smbbase);
+  if (err)
+    return err;
+
+  /* TRANSLATORS: System management bus is often used to access components like
+     RAM (info only, not data) or batteries. I/O space is where in memory
+     its ports are.  */
+  grub_printf_ (N_("System management bus controller I/O space is at 0x%x\n"),
+		smbbase);
+
+  for (i = GRUB_SMB_RAM_START_ADDR;
+       i < GRUB_SMB_RAM_START_ADDR + GRUB_SMB_RAM_NUM_MAX; i++)
+    {
+      struct grub_smbus_spd spd;
+      grub_memset (&spd, 0, sizeof (spd));
+      /* TRANSLATORS: it's shown in a report in a way
+	 like number 1: ... number 2: ...
+       */
+      grub_printf_ (N_("RAM slot number %d\n"), i);
+      err = grub_cs5536_read_spd (smbbase, i, &spd);
+      if (err)
+	{
+	  grub_print_error ();
+	  continue;
+	}
+      grub_printf_ (N_("Written SPD bytes: %d B.\n"), spd.written_size);
+      grub_printf_ (N_("Total flash size: %d B.\n"),
+		    1 << spd.log_total_flash_size);
+      if (spd.memory_type == GRUB_SMBUS_SPD_MEMORY_TYPE_DDR2)
+	{
+	  char str[sizeof (spd.ddr2.part_number) + 1];
+	  grub_puts_ (N_("Memory type: DDR2."));
+	  grub_memcpy (str, spd.ddr2.part_number,
+		       sizeof (spd.ddr2.part_number));
+	  str[sizeof (spd.ddr2.part_number)] = 0;
+	  grub_printf_ (N_("Part no: %s.\n"), str);
+	}
+      else
+	grub_puts_ (N_("Memory type: Unknown."));
+    }
+
+  return GRUB_ERR_NONE;
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(lsspd)
+{
+  cmd = grub_register_command ("lsspd", grub_cmd_lsspd, 0,
+			       N_("Print Memory information."));
+}
+
+GRUB_MOD_FINI(lsspd)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/nativedisk.c b/grub-core/commands/nativedisk.c
new file mode 100644
index 0000000..7c8f97f
--- /dev/null
+++ b/grub-core/commands/nativedisk.c
@@ -0,0 +1,332 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2013  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/err.h>
+#include <grub/dl.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+#include <grub/device.h>
+#include <grub/mm.h>
+#include <grub/fs.h>
+#include <grub/env.h>
+#include <grub/file.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const char *modnames_def[] = { 
+  /* FIXME: autogenerate this.  */
+#if defined (__i386__) || defined (__x86_64__) || defined (GRUB_MACHINE_MIPS_LOONGSON)
+  "pata", "ahci", "usbms", "ohci", "uhci", "ehci"
+#elif defined (GRUB_MACHINE_MIPS_QEMU_MIPS)
+  "pata"
+#else
+#error "Fill this"
+#endif
+ };
+
+static grub_err_t
+get_uuid (const char *name, char **uuid, int getnative)
+{
+  grub_device_t dev;
+  grub_fs_t fs = 0;
+
+  *uuid = 0;
+
+  dev = grub_device_open (name);
+  if (!dev)
+    return grub_errno;
+
+  if (!dev->disk)
+    {
+      grub_dprintf ("nativedisk", "Skipping non-disk\n");
+      grub_device_close (dev);
+      return 0;
+    }
+
+  switch (dev->disk->dev->id)
+    {
+      /* Firmware disks.  */
+    case GRUB_DISK_DEVICE_BIOSDISK_ID:
+    case GRUB_DISK_DEVICE_OFDISK_ID:
+    case GRUB_DISK_DEVICE_OBDISK_ID:
+    case GRUB_DISK_DEVICE_EFIDISK_ID:
+    case GRUB_DISK_DEVICE_NAND_ID:
+    case GRUB_DISK_DEVICE_ARCDISK_ID:
+    case GRUB_DISK_DEVICE_HOSTDISK_ID:
+    case GRUB_DISK_DEVICE_UBOOTDISK_ID:
+      break;
+
+      /* Native disks.  */
+    case GRUB_DISK_DEVICE_ATA_ID:
+    case GRUB_DISK_DEVICE_SCSI_ID:
+    case GRUB_DISK_DEVICE_XEN:
+      if (getnative)
+	break;
+      /* FALLTHROUGH */
+
+      /* Virtual disks.  */
+      /* GRUB dynamically generated files.  */
+    case GRUB_DISK_DEVICE_PROCFS_ID:
+      /* To access through host OS routines (grub-emu only).  */
+    case GRUB_DISK_DEVICE_HOST_ID:
+      /* To access coreboot roms.  */
+    case GRUB_DISK_DEVICE_CBFSDISK_ID:
+      /* GRUB-only memdisk. Can't match any of firmware devices.  */
+    case GRUB_DISK_DEVICE_MEMDISK_ID:
+      grub_dprintf ("nativedisk", "Skipping native disk %s\n",
+		    dev->disk->name);
+      grub_device_close (dev);
+      return 0;
+
+      /* FIXME: those probably need special handling.  */
+    case GRUB_DISK_DEVICE_LOOPBACK_ID:
+    case GRUB_DISK_DEVICE_DISKFILTER_ID:
+    case GRUB_DISK_DEVICE_CRYPTODISK_ID:
+      break;
+    }
+  if (dev)
+    fs = grub_fs_probe (dev);
+  if (!fs)
+    {
+      grub_device_close (dev);
+      return grub_errno;
+    }
+  if (!fs->fs_uuid || fs->fs_uuid (dev, uuid) || !*uuid)
+    {
+      grub_device_close (dev);
+
+      if (!grub_errno)
+	grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
+		    N_("%s does not support UUIDs"), fs->name);
+
+      return grub_errno;
+    }
+  grub_device_close (dev);
+  return GRUB_ERR_NONE;
+}
+
+struct search_ctx
+{
+  char *root_uuid;
+  char *prefix_uuid;
+  const char *prefix_path;
+  int prefix_found, root_found;
+};
+
+static int
+iterate_device (const char *name, void *data)
+{
+  struct search_ctx *ctx = data;
+  char *cur_uuid;
+
+  if (get_uuid (name, &cur_uuid, 1))
+    {
+      if (grub_errno == GRUB_ERR_UNKNOWN_FS)
+	grub_errno = 0;
+      grub_print_error ();
+      return 0;
+    }
+
+  grub_dprintf ("nativedisk", "checking %s: %s\n", name,
+		cur_uuid);
+  if (ctx->prefix_uuid && grub_strcasecmp (cur_uuid, ctx->prefix_uuid) == 0)
+    {
+      char *prefix;
+      prefix = grub_xasprintf ("(%s)/%s", name, ctx->prefix_path);
+      grub_env_set ("prefix", prefix);
+      grub_free (prefix);
+      ctx->prefix_found = 1;
+    }
+  if (ctx->root_uuid && grub_strcasecmp (cur_uuid, ctx->root_uuid) == 0)
+    {
+      grub_env_set ("root", name);
+      ctx->root_found = 1;
+    }
+  return ctx->prefix_found && ctx->root_found;
+}
+
+static grub_err_t
+grub_cmd_nativedisk (grub_command_t cmd __attribute__ ((unused)),
+		     int argc, char **args_in)
+{
+  char *uuid_root = 0, *uuid_prefix, *prefdev = 0;
+  const char *prefix = 0;
+  const char *path_prefix = 0;
+  int mods_loaded = 0;
+  grub_dl_t *mods;
+  const char **args;
+  int i;
+
+  if (argc == 0)
+    {
+      argc = ARRAY_SIZE (modnames_def);
+      args = modnames_def;
+    }
+  else
+    args = (const char **) args_in;
+
+  prefix = grub_env_get ("prefix");
+
+  if (! prefix)
+    return grub_error (GRUB_ERR_FILE_NOT_FOUND, N_("variable `%s' isn't set"), "prefix");
+
+  if (prefix)
+    path_prefix = (prefix[0] == '(') ? grub_strchr (prefix, ')') : NULL;
+  if (path_prefix)
+    path_prefix++;
+  else
+    path_prefix = prefix;
+
+  mods = grub_calloc (argc, sizeof (mods[0]));
+  if (!mods)
+    return grub_errno;
+
+  if (get_uuid (NULL, &uuid_root, 0))
+    {
+      grub_free (mods);
+      return grub_errno;
+    }
+
+  prefdev = grub_file_get_device_name (prefix);
+  if (grub_errno)
+    {
+      grub_print_error ();
+      prefdev = 0;
+    }
+
+  if (get_uuid (prefdev, &uuid_prefix, 0))
+    {
+      grub_free (uuid_root);
+      grub_free (prefdev);
+      grub_free (mods);
+      return grub_errno;
+    }
+
+  grub_dprintf ("nativedisk", "uuid_prefix = %s, uuid_root = %s\n",
+		uuid_prefix, uuid_root);
+
+  for (mods_loaded = 0; mods_loaded < argc; mods_loaded++)
+    {
+      char *filename;
+      grub_dl_t mod;
+      grub_file_t file = NULL;
+      grub_ssize_t size;
+      void *core = 0;
+
+      mod = grub_dl_get (args[mods_loaded]);
+      if (mod)
+	{
+	  mods[mods_loaded] = 0;
+	  continue;
+	}
+
+      filename = grub_xasprintf ("%s/" GRUB_TARGET_CPU "-" GRUB_PLATFORM "/%s.mod",
+				 prefix, args[mods_loaded]);
+      if (! filename)
+	goto fail;
+
+      file = grub_file_open (filename,
+			     GRUB_FILE_TYPE_GRUB_MODULE);
+      grub_free (filename);
+      if (! file)
+	goto fail;
+
+      size = grub_file_size (file);
+      core = grub_malloc (size);
+      if (! core)
+	{
+	  grub_file_close (file);
+	  goto fail;
+	}
+
+      if (grub_file_read (file, core, size) != (grub_ssize_t) size)
+	{
+	  grub_file_close (file);
+	  grub_free (core);
+	  goto fail;
+	}
+
+      grub_file_close (file);
+
+      mods[mods_loaded] = grub_dl_load_core_noinit (core, size);
+      if (! mods[mods_loaded])
+	goto fail;
+    }
+
+  for (i = 0; i < argc; i++)
+    if (mods[i])
+      grub_dl_init (mods[i]);
+
+  if (uuid_prefix || uuid_root)
+    {
+      struct search_ctx ctx;
+      grub_fs_autoload_hook_t saved_autoload;
+
+      /* No need to autoload FS since obviously we already have the necessary fs modules.  */
+      saved_autoload = grub_fs_autoload_hook;
+      grub_fs_autoload_hook = 0;
+
+      ctx.root_uuid = uuid_root;
+      ctx.prefix_uuid = uuid_prefix;
+      ctx.prefix_path = path_prefix;
+      ctx.prefix_found = !uuid_prefix;
+      ctx.root_found = !uuid_root;
+
+      /* FIXME: try to guess the correct values.  */
+      grub_device_iterate (iterate_device, &ctx);
+
+      grub_fs_autoload_hook = saved_autoload;
+    }
+  grub_free (uuid_root);
+  grub_free (uuid_prefix);
+  grub_free (prefdev);
+  grub_free (mods);
+
+  return GRUB_ERR_NONE;
+
+ fail:
+  grub_free (uuid_root);
+  grub_free (uuid_prefix);
+  grub_free (prefdev);
+
+  for (i = 0; i < mods_loaded; i++)
+    if (mods[i])
+      {
+	mods[i]->fini = 0;
+	grub_dl_unload (mods[i]);
+      }
+  grub_free (mods);
+
+  return grub_errno;
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(nativedisk)
+{
+  cmd = grub_register_command ("nativedisk", grub_cmd_nativedisk, N_("[MODULE1 MODULE2 ...]"),
+			       N_("Switch to native disk drivers. If no modules are specified default set (pata,ahci,usbms,ohci,uhci,ehci) is used"));
+}
+
+GRUB_MOD_FINI(nativedisk)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/parttool.c b/grub-core/commands/parttool.c
new file mode 100644
index 0000000..051e313
--- /dev/null
+++ b/grub-core/commands/parttool.c
@@ -0,0 +1,357 @@
+/* parttool.c - common dispatcher and parser for partition operations */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2009  Free Software Foundation, Inc.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/err.h>
+#include <grub/dl.h>
+#include <grub/normal.h>
+#include <grub/device.h>
+#include <grub/disk.h>
+#include <grub/partition.h>
+#include <grub/parttool.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv2+");
+
+static struct grub_parttool *parts = 0;
+static int curhandle = 0;
+static grub_dl_t mymod;
+static char helpmsg[] =
+  N_("Perform COMMANDS on partition.\n"
+     "Use `parttool PARTITION help' for the list "
+     "of available commands.");
+
+int
+grub_parttool_register(const char *part_name,
+		       const grub_parttool_function_t func,
+		       const struct grub_parttool_argdesc *args)
+{
+  struct grub_parttool *cur;
+  int nargs = 0;
+
+  if (! parts)
+    grub_dl_ref (mymod);
+
+  cur = (struct grub_parttool *) grub_malloc (sizeof (struct grub_parttool));
+  cur->next = parts;
+  cur->name = grub_strdup (part_name);
+  cur->handle = curhandle++;
+  for (nargs = 0; args[nargs].name != 0; nargs++);
+  cur->nargs = nargs;
+  cur->args = (struct grub_parttool_argdesc *)
+    grub_calloc (nargs + 1, sizeof (struct grub_parttool_argdesc));
+  if (!cur->args)
+    {
+      grub_free (cur);
+      curhandle--;
+      return -1;
+    }
+  grub_memcpy (cur->args, args,
+	       (nargs + 1) * sizeof (struct grub_parttool_argdesc));
+
+  cur->func = func;
+  parts = cur;
+  return cur->handle;
+}
+
+void
+grub_parttool_unregister (int handle)
+{
+  struct grub_parttool *prev = 0, *cur, *t;
+  for (cur = parts; cur; )
+    if (cur->handle == handle)
+      {
+	grub_free (cur->args);
+	grub_free (cur->name);
+	if (prev)
+	  prev->next = cur->next;
+	else
+	  parts = cur->next;
+	t = cur;
+	cur = cur->next;
+	grub_free (t);
+      }
+    else
+      {
+	prev = cur;
+	cur = cur->next;
+      }
+  if (! parts)
+    grub_dl_unref (mymod);
+}
+
+static grub_err_t
+show_help (grub_device_t dev)
+{
+  int found = 0;
+  struct grub_parttool *cur;
+
+  for (cur = parts; cur; cur = cur->next)
+    if (grub_strcmp (dev->disk->partition->partmap->name, cur->name) == 0)
+      {
+	struct grub_parttool_argdesc *curarg;
+	found = 1;
+	for (curarg = cur->args; curarg->name; curarg++)
+	  {
+	    int spacing = 20;
+
+	    spacing -= grub_strlen (curarg->name);
+	    grub_printf ("%s", curarg->name);
+
+	    switch (curarg->type)
+	      {
+	      case GRUB_PARTTOOL_ARG_BOOL:
+		grub_printf ("+/-");
+		spacing -= 3;
+		break;
+
+	      case GRUB_PARTTOOL_ARG_VAL:
+		grub_xputs (_("=VAL"));
+		spacing -= 4;
+		break;
+
+	      case GRUB_PARTTOOL_ARG_END:
+		break;
+	      }
+	    while (spacing-- > 0)
+	      grub_printf (" ");
+	    grub_puts_ (curarg->desc);
+	  }
+      }
+  if (! found)
+    grub_printf_ (N_("Sorry, no parttool is available for %s\n"),
+		  dev->disk->partition->partmap->name);
+  return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_cmd_parttool (grub_command_t cmd __attribute__ ((unused)),
+		   int argc, char **args)
+{
+  grub_device_t dev;
+  struct grub_parttool *cur, *ptool;
+  int *parsed;
+  int i, j;
+  grub_err_t err = GRUB_ERR_NONE;
+
+  if (argc < 1)
+    {
+      grub_puts_ (helpmsg);
+      return grub_error (GRUB_ERR_BAD_ARGUMENT, "too few arguments");
+    }
+
+  if (args[0][0] == '(' && args[0][grub_strlen (args[0]) - 1] == ')')
+    {
+      args[0][grub_strlen (args[0]) - 1] = 0;
+      dev = grub_device_open (args[0] + 1);
+      args[0][grub_strlen (args[0]) - 1] = ')';
+    }
+  else
+    dev = grub_device_open (args[0]);
+
+  if (! dev)
+    return grub_errno;
+
+  if (! dev->disk)
+    {
+      grub_device_close (dev);
+      return grub_error (GRUB_ERR_BAD_ARGUMENT, "not a disk");
+    }
+
+  if (! dev->disk->partition)
+    {
+      grub_device_close (dev);
+      return grub_error (GRUB_ERR_BAD_ARGUMENT, "not a partition");
+    }
+
+  /* Load modules. */
+  if (! grub_no_modules)
+  {
+    const char *prefix;
+    prefix = grub_env_get ("prefix");
+    if (prefix)
+      {
+	char *filename;
+
+	filename = grub_xasprintf ("%s/" GRUB_TARGET_CPU "-" GRUB_PLATFORM
+				   "/parttool.lst", prefix);
+	if (filename)
+	  {
+	    grub_file_t file;
+
+	    file = grub_file_open (filename, GRUB_FILE_TYPE_GRUB_MODULE_LIST);
+	    if (file)
+	      {
+		char *buf = 0;
+		for (;; grub_free(buf))
+		  {
+		    char *p, *name;
+
+		    buf = grub_file_getline (file);
+
+		    if (! buf)
+		      break;
+
+		    name = buf;
+		    while (grub_isspace (name[0]))
+		      name++;
+
+		    if (! grub_isgraph (name[0]))
+		      continue;
+
+		    p = grub_strchr (name, ':');
+		    if (! p)
+		      continue;
+
+		    *p = '\0';
+		    p++;
+		    while (*p == ' ' || *p == '\t')
+		      p++;
+
+		    if (! grub_isgraph (*p))
+		      continue;
+
+		    if (grub_strcmp (name, dev->disk->partition->partmap->name)
+			!= 0)
+		      continue;
+
+		    grub_dl_load (p);
+		  }
+
+		grub_file_close (file);
+	      }
+
+	    grub_free (filename);
+	  }
+      }
+    /* Ignore errors.  */
+    grub_errno = GRUB_ERR_NONE;
+  }
+
+  if (argc == 1)
+    {
+      err = show_help (dev);
+      grub_device_close (dev);
+      return err;
+    }
+
+  for (i = 1; i < argc; i++)
+    if (grub_strcmp (args[i], "help") == 0)
+      {
+	err = show_help (dev);
+	grub_device_close (dev);
+	return err;
+      }
+
+  parsed = (int *) grub_calloc (argc, sizeof (int));
+
+  for (i = 1; i < argc; i++)
+    if (! parsed[i])
+      {
+	struct grub_parttool_argdesc *curarg;
+	struct grub_parttool_args *pargs;
+	for (cur = parts; cur; cur = cur->next)
+	  if (grub_strcmp (dev->disk->partition->partmap->name, cur->name) == 0)
+	    {
+	      for (curarg = cur->args; curarg->name; curarg++)
+		if (grub_strncmp (curarg->name, args[i],
+				  grub_strlen (curarg->name)) == 0
+		    && ((curarg->type == GRUB_PARTTOOL_ARG_BOOL
+			 && (args[i][grub_strlen (curarg->name)] == '+'
+			     || args[i][grub_strlen (curarg->name)] == '-'
+			     || args[i][grub_strlen (curarg->name)] == 0))
+			|| (curarg->type == GRUB_PARTTOOL_ARG_VAL
+			    && args[i][grub_strlen (curarg->name)] == '=')))
+
+		  break;
+	      if (curarg->name)
+		break;
+	    }
+	if (! cur)
+	  {
+	    grub_free (parsed);
+	    grub_device_close (dev);
+	    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("unknown argument `%s'"),
+			     args[i]);
+	  }
+	ptool = cur;
+	pargs = (struct grub_parttool_args *)
+	  grub_calloc (ptool->nargs, sizeof (struct grub_parttool_args));
+	for (j = i; j < argc; j++)
+	  if (! parsed[j])
+	    {
+	      for (curarg = ptool->args; curarg->name; curarg++)
+		if (grub_strncmp (curarg->name, args[j],
+				   grub_strlen (curarg->name)) == 0
+		    && ((curarg->type == GRUB_PARTTOOL_ARG_BOOL
+			 && (args[j][grub_strlen (curarg->name)] == '+'
+			     || args[j][grub_strlen (curarg->name)] == '-'
+			     || args[j][grub_strlen (curarg->name)] == 0))
+			|| (curarg->type == GRUB_PARTTOOL_ARG_VAL
+			    && args[j][grub_strlen (curarg->name)] == '=')))
+		  {
+		    parsed[j] = 1;
+		    pargs[curarg - ptool->args].set = 1;
+		    switch (curarg->type)
+		      {
+		      case GRUB_PARTTOOL_ARG_BOOL:
+			pargs[curarg - ptool->args].bool
+			  = (args[j][grub_strlen (curarg->name)] != '-');
+			break;
+
+		      case GRUB_PARTTOOL_ARG_VAL:
+			pargs[curarg - ptool->args].str
+			  = (args[j] + grub_strlen (curarg->name) + 1);
+			break;
+
+		      case GRUB_PARTTOOL_ARG_END:
+			break;
+		      }
+		  }
+	    }
+
+	err = ptool->func (dev, pargs);
+	grub_free (pargs);
+	if (err)
+	  break;
+      }
+
+  grub_free (parsed);
+  grub_device_close (dev);
+  return err;
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(parttool)
+{
+  mymod = mod;
+  cmd = grub_register_command ("parttool", grub_cmd_parttool,
+			       N_("PARTITION COMMANDS"),
+			       helpmsg);
+}
+
+GRUB_MOD_FINI(parttool)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/password.c b/grub-core/commands/password.c
new file mode 100644
index 0000000..6d42c9b
--- /dev/null
+++ b/grub-core/commands/password.c
@@ -0,0 +1,93 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/auth.h>
+#include <grub/crypto.h>
+#include <grub/list.h>
+#include <grub/mm.h>
+#include <grub/misc.h>
+#include <grub/env.h>
+#include <grub/normal.h>
+#include <grub/dl.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_dl_t my_mod;
+
+static grub_err_t
+check_password (const char *user, const char *entered,
+		void *password)
+{
+  if (grub_crypto_memcmp (entered, password, GRUB_AUTH_MAX_PASSLEN) != 0)
+    return GRUB_ACCESS_DENIED;
+
+  grub_auth_authenticate (user);
+
+  return GRUB_ERR_NONE;
+}
+
+grub_err_t
+grub_normal_set_password (const char *user, const char *password)
+{
+  grub_err_t err;
+  char *pass;
+  int copylen;
+
+  pass = grub_zalloc (GRUB_AUTH_MAX_PASSLEN);
+  if (!pass)
+    return grub_errno;
+  copylen = grub_strlen (password);
+  if (copylen >= GRUB_AUTH_MAX_PASSLEN)
+    copylen = GRUB_AUTH_MAX_PASSLEN - 1;
+  grub_memcpy (pass, password, copylen);
+
+  err = grub_auth_register_authentication (user, check_password, pass);
+  if (err)
+    {
+      grub_free (pass);
+      return err;
+    }
+  grub_dl_ref (my_mod);
+  return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_cmd_password (grub_command_t cmd __attribute__ ((unused)),
+		   int argc, char **args)
+{
+  if (argc != 2)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("two arguments expected"));
+  return grub_normal_set_password (args[0], args[1]);
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(password)
+{
+  my_mod = mod;
+  cmd = grub_register_command ("password", grub_cmd_password,
+			       N_("USER PASSWORD"),
+			       N_("Set user password (plaintext). "
+			       "Unrecommended and insecure."));
+}
+
+GRUB_MOD_FINI(password)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/password_pbkdf2.c b/grub-core/commands/password_pbkdf2.c
new file mode 100644
index 0000000..ab845d2
--- /dev/null
+++ b/grub-core/commands/password_pbkdf2.c
@@ -0,0 +1,209 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/auth.h>
+#include <grub/crypto.h>
+#include <grub/list.h>
+#include <grub/mm.h>
+#include <grub/misc.h>
+#include <grub/env.h>
+#include <grub/normal.h>
+#include <grub/dl.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_dl_t my_mod;
+
+struct pbkdf2_password
+{
+  grub_uint8_t *salt;
+  grub_size_t saltlen;
+  unsigned int c;
+  grub_uint8_t *expected;
+  grub_size_t buflen;
+};
+
+static grub_err_t
+check_password (const char *user, const char *entered, void *pin)
+{
+  grub_uint8_t *buf;
+  struct pbkdf2_password *pass = pin;
+  gcry_err_code_t err;
+  grub_err_t ret;
+
+  buf = grub_malloc (pass->buflen);
+  if (!buf)
+    return grub_crypto_gcry_error (GPG_ERR_OUT_OF_MEMORY);
+
+  err = grub_crypto_pbkdf2 (GRUB_MD_SHA512, (grub_uint8_t *) entered,
+			    grub_strlen (entered),
+			    pass->salt, pass->saltlen, pass->c,
+			    buf, pass->buflen);
+  if (err)
+      ret = grub_crypto_gcry_error (err);
+  else if (grub_crypto_memcmp (buf, pass->expected, pass->buflen) != 0)
+      ret = GRUB_ACCESS_DENIED;
+  else
+    {
+      grub_auth_authenticate (user);
+      ret = GRUB_ERR_NONE;
+    }
+
+  grub_free (buf);
+  return ret;
+}
+
+static inline int
+hex2val (char hex)
+{
+  if ('0' <= hex && hex <= '9')
+    return hex - '0';
+  if ('a' <= hex && hex <= 'f')
+    return hex - 'a' + 10;
+  if ('A' <= hex && hex <= 'F')
+    return hex - 'A' + 10;
+  return -1;
+}
+
+static grub_err_t
+grub_cmd_password (grub_command_t cmd __attribute__ ((unused)),
+		   int argc, char **args)
+{
+  grub_err_t err;
+  const char *ptr, *ptr2;
+  grub_uint8_t *ptro;
+  struct pbkdf2_password *pass;
+
+  if (argc != 2)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("two arguments expected"));
+
+  if (grub_memcmp (args[1], "grub.pbkdf2.sha512.",
+		   sizeof ("grub.pbkdf2.sha512.") - 1) != 0)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("invalid PBKDF2 password"));
+
+  ptr = args[1] + sizeof ("grub.pbkdf2.sha512.") - 1;
+
+  pass = grub_malloc (sizeof (*pass));
+  if (!pass)
+    return grub_errno;
+
+  pass->c = grub_strtoul (ptr, &ptr, 0);
+  if (grub_errno)
+    {
+      grub_free (pass);
+      return grub_errno;
+    }
+  if (*ptr != '.')
+    {
+      grub_free (pass);
+      return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("invalid PBKDF2 password"));
+    }
+  ptr++;
+
+  ptr2 = grub_strchr (ptr, '.');
+  if (!ptr2 || ((ptr2 - ptr) & 1) || grub_strlen (ptr2 + 1) & 1)
+    {
+      grub_free (pass);
+      return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("invalid PBKDF2 password"));
+    }
+
+  pass->saltlen = (ptr2 - ptr) >> 1;
+  pass->buflen = grub_strlen (ptr2 + 1) >> 1;
+  ptro = pass->salt = grub_malloc (pass->saltlen);
+  if (!ptro)
+    {
+      grub_free (pass);
+      return grub_errno;
+    }
+  while (ptr < ptr2)
+    {
+      int hex1, hex2;
+      hex1 = hex2val (*ptr);
+      ptr++;
+      hex2 = hex2val (*ptr);
+      ptr++;
+      if (hex1 < 0 || hex2 < 0)
+	{
+	  grub_free (pass->salt);
+	  grub_free (pass);
+	  return grub_error (GRUB_ERR_BAD_ARGUMENT,
+			     /* TRANSLATORS: it means that the string which
+				was supposed to be a password hash doesn't
+				have a correct format, not to password
+				mismatch.  */
+			     N_("invalid PBKDF2 password"));
+	}
+
+      *ptro = (hex1 << 4) | hex2;
+      ptro++;
+    }
+
+  ptro = pass->expected = grub_malloc (pass->buflen);
+  if (!ptro)
+    {
+      grub_free (pass->salt);
+      grub_free (pass);
+      return grub_errno;
+    }
+  ptr = ptr2 + 1;
+  ptr2 += grub_strlen (ptr2); 
+  while (ptr < ptr2)
+    {
+      int hex1, hex2;
+      hex1 = hex2val (*ptr);
+      ptr++;
+      hex2 = hex2val (*ptr);
+      ptr++;
+      if (hex1 < 0 || hex2 < 0)
+	{
+	  grub_free (pass->expected);
+	  grub_free (pass->salt);
+	  grub_free (pass);
+	  return grub_error (GRUB_ERR_BAD_ARGUMENT,
+			     N_("invalid PBKDF2 password"));
+	}
+
+      *ptro = (hex1 << 4) | hex2;
+      ptro++;
+    }
+
+  err = grub_auth_register_authentication (args[0], check_password, pass);
+  if (err)
+    {
+      grub_free (pass);
+      return err;
+    }
+  grub_dl_ref (my_mod);
+  return GRUB_ERR_NONE;
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(password_pbkdf2)
+{
+  my_mod = mod;
+  cmd = grub_register_command ("password_pbkdf2", grub_cmd_password,
+			       N_("USER PBKDF2_PASSWORD"),
+			       N_("Set user password (PBKDF2). "));
+}
+
+GRUB_MOD_FINI(password_pbkdf2)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/pcidump.c b/grub-core/commands/pcidump.c
new file mode 100644
index 0000000..f72628f
--- /dev/null
+++ b/grub-core/commands/pcidump.c
@@ -0,0 +1,174 @@
+/* lspci.c - List PCI devices.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2013  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/pci.h>
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/extcmd.h>
+#include <grub/env.h>
+#include <grub/mm.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+struct iter_cxt
+{
+  grub_uint32_t pciid_check_mask, pciid_check_value;
+  int bus, device, function;
+  int check_bus, check_device, check_function;
+};
+
+static const struct grub_arg_option options[] =
+  {
+    {0, 'd', 0, N_("Select device by vendor and device IDs."),
+     N_("[vendor]:[device]"), ARG_TYPE_STRING},
+    {0, 's', 0, N_("Select device by its position on the bus."),
+     N_("[bus]:[slot][.func]"), ARG_TYPE_STRING},
+    {0, 0, 0, 0, 0, 0}
+  };
+
+static int
+grub_pcidump_iter (grub_pci_device_t dev, grub_pci_id_t pciid,
+		  void *data)
+{
+  struct iter_cxt *ctx = data;
+  grub_pci_address_t addr;
+  int i;
+
+  if ((pciid & ctx->pciid_check_mask) != ctx->pciid_check_value)
+    return 0;
+
+  if (ctx->check_bus && grub_pci_get_bus (dev) != ctx->bus)
+    return 0;
+
+  if (ctx->check_device && grub_pci_get_device (dev) != ctx->device)
+    return 0;
+
+  if (ctx->check_function && grub_pci_get_function (dev) != ctx->function)
+    return 0;
+
+  for (i = 0; i < 256; i += 4)
+    {
+      addr = grub_pci_make_address (dev, i);
+      grub_printf ("%08x ", grub_pci_read (addr));
+      if ((i & 0xc) == 0xc)
+	grub_printf ("\n");
+    }
+
+  return 0;
+}
+
+static grub_err_t
+grub_cmd_pcidump (grub_extcmd_context_t ctxt,
+		  int argc __attribute__ ((unused)),
+		  char **argv __attribute__ ((unused)))
+{
+  const char *ptr;
+  struct iter_cxt ctx =
+    {
+      .pciid_check_value = 0,
+      .pciid_check_mask = 0,
+      .check_bus = 0,
+      .check_device = 0,
+      .check_function = 0,
+      .bus = 0,
+      .function = 0,
+      .device = 0
+    };
+
+  if (ctxt->state[0].set)
+    {
+      ptr = ctxt->state[0].arg;
+      ctx.pciid_check_value |= (grub_strtoul (ptr, &ptr, 16) & 0xffff);
+      if (grub_errno == GRUB_ERR_BAD_NUMBER)
+	{
+	  grub_errno = GRUB_ERR_NONE;
+	  ptr = ctxt->state[0].arg;
+	}
+      else
+	ctx.pciid_check_mask |= 0xffff;
+      if (grub_errno)
+	return grub_errno;
+      if (*ptr != ':')
+	return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("missing `%c' symbol"), ':');
+      ptr++;
+      ctx.pciid_check_value |= (grub_strtoul (ptr, &ptr, 16) & 0xffff) << 16;
+      if (grub_errno == GRUB_ERR_BAD_NUMBER)
+	grub_errno = GRUB_ERR_NONE;
+      else
+	ctx.pciid_check_mask |= 0xffff0000;
+    }
+
+  ctx.pciid_check_value &= ctx.pciid_check_mask;
+
+  if (ctxt->state[1].set)
+    {
+      const char *optr;
+
+      ptr = ctxt->state[1].arg;
+      optr = ptr;
+      ctx.bus = grub_strtoul (ptr, &ptr, 16);
+      if (grub_errno == GRUB_ERR_BAD_NUMBER)
+	{
+	  grub_errno = GRUB_ERR_NONE;
+	  ptr = optr;
+	}
+      else
+	ctx.check_bus = 1;
+      if (grub_errno)
+	return grub_errno;
+      if (*ptr != ':')
+	return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("missing `%c' symbol"), ':');
+      ptr++;
+      optr = ptr;
+      ctx.device = grub_strtoul (ptr, &ptr, 16);
+      if (grub_errno == GRUB_ERR_BAD_NUMBER)
+	{
+	  grub_errno = GRUB_ERR_NONE;
+	  ptr = optr;
+	}
+      else
+	ctx.check_device = 1;
+      if (*ptr == '.')
+	{
+	  ptr++;
+	  ctx.function = grub_strtoul (ptr, &ptr, 16);
+	  if (grub_errno)
+	    return grub_errno;
+	  ctx.check_function = 1;
+	}
+    }
+
+  grub_pci_iterate (grub_pcidump_iter, &ctx);
+  return GRUB_ERR_NONE;
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT(pcidump)
+{
+  cmd = grub_register_extcmd ("pcidump", grub_cmd_pcidump, 0,
+			      N_("[-s POSITION] [-d DEVICE]"),
+			      N_("Show raw dump of the PCI configuration space."), options);
+}
+
+GRUB_MOD_FINI(pcidump)
+{
+  grub_unregister_extcmd (cmd);
+}
diff --git a/grub-core/commands/pgp.c b/grub-core/commands/pgp.c
new file mode 100644
index 0000000..5daa1e9
--- /dev/null
+++ b/grub-core/commands/pgp.c
@@ -0,0 +1,1018 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2013  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/err.h>
+#include <grub/dl.h>
+#include <grub/file.h>
+#include <grub/command.h>
+#include <grub/crypto.h>
+#include <grub/i18n.h>
+#include <grub/gcrypt/gcrypt.h>
+#include <grub/pubkey.h>
+#include <grub/env.h>
+#include <grub/kernel.h>
+#include <grub/extcmd.h>
+#include <grub/verify.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+enum
+  {
+    OPTION_SKIP_SIG = 0
+  };
+
+static const struct grub_arg_option options[] =
+  {
+    {"skip-sig", 's', 0,
+     N_("Skip signature-checking of the public key file."), 0, ARG_TYPE_NONE},
+    {0, 0, 0, 0, 0, 0}
+  };
+
+static grub_err_t
+read_packet_header (grub_file_t sig, grub_uint8_t *out_type, grub_size_t *len)
+{
+  grub_uint8_t type;
+  grub_uint8_t l;
+  grub_uint16_t l16;
+  grub_uint32_t l32;
+
+  /* New format.  */
+  switch (grub_file_read (sig, &type, sizeof (type)))
+    {
+    case 1:
+      break;
+    case 0:
+      {
+	*out_type = 0xff;
+	return 0;
+      }
+    default:
+      if (grub_errno)
+	return grub_errno;
+      /* TRANSLATORS: it's about GNUPG signatures.  */
+      return grub_error (GRUB_ERR_BAD_SIGNATURE, N_("bad signature"));
+    }
+
+  if (type == 0)
+    {
+      *out_type = 0xfe;
+      return 0;      
+    }
+
+  if (!(type & 0x80))
+    return grub_error (GRUB_ERR_BAD_SIGNATURE, N_("bad signature"));
+  if (type & 0x40)
+    {
+      *out_type = (type & 0x3f);
+      if (grub_file_read (sig, &l, sizeof (l)) != 1)
+	return grub_error (GRUB_ERR_BAD_SIGNATURE, N_("bad signature"));
+      if (l < 192)
+	{
+	  *len = l;
+	  return 0;
+	}
+      if (l < 224)
+	{
+	  *len = (l - 192) << GRUB_CHAR_BIT;
+	  if (grub_file_read (sig, &l, sizeof (l)) != 1)
+	    return grub_error (GRUB_ERR_BAD_SIGNATURE, N_("bad signature"));
+	  *len |= l;
+	  return 0;
+	}
+      if (l == 255)
+	{
+	  if (grub_file_read (sig, &l32, sizeof (l32)) != sizeof (l32))
+	    return grub_error (GRUB_ERR_BAD_SIGNATURE, N_("bad signature"));
+	  *len = grub_be_to_cpu32 (l32);
+	  return 0;
+	}
+      return grub_error (GRUB_ERR_BAD_SIGNATURE, N_("bad signature"));
+    }
+  *out_type = ((type >> 2) & 0xf);
+  switch (type & 0x3)
+    {
+    case 0:
+      if (grub_file_read (sig, &l, sizeof (l)) != sizeof (l))
+	return grub_error (GRUB_ERR_BAD_SIGNATURE, N_("bad signature"));
+      *len = l;
+      return 0;
+    case 1:
+      if (grub_file_read (sig, &l16, sizeof (l16)) != sizeof (l16))
+	return grub_error (GRUB_ERR_BAD_SIGNATURE, N_("bad signature"));
+      *len = grub_be_to_cpu16 (l16);
+      return 0;
+    case 2:
+      if (grub_file_read (sig, &l32, sizeof (l32)) != sizeof (l32))
+	return grub_error (GRUB_ERR_BAD_SIGNATURE, N_("bad signature"));
+      *len = grub_be_to_cpu32 (l32);
+      return 0;
+    }
+  return grub_error (GRUB_ERR_BAD_SIGNATURE, N_("bad signature"));
+}
+
+struct signature_v4_header
+{
+  grub_uint8_t type;
+  grub_uint8_t pkeyalgo;
+  grub_uint8_t hash;
+  grub_uint16_t hashed_sub;
+} GRUB_PACKED;
+
+const char *hashes[] = {
+  [0x01] = "md5",
+  [0x02] = "sha1",
+  [0x03] = "ripemd160",
+  [0x08] = "sha256",
+  [0x09] = "sha384",
+  [0x0a] = "sha512",
+  [0x0b] = "sha224"
+};
+
+struct gcry_pk_spec *grub_crypto_pk_dsa;
+struct gcry_pk_spec *grub_crypto_pk_ecdsa;
+struct gcry_pk_spec *grub_crypto_pk_rsa;
+
+static int
+dsa_pad (gcry_mpi_t *hmpi, grub_uint8_t *hval,
+	 const gcry_md_spec_t *hash, struct grub_public_subkey *sk);
+static int
+rsa_pad (gcry_mpi_t *hmpi, grub_uint8_t *hval,
+	 const gcry_md_spec_t *hash, struct grub_public_subkey *sk);
+
+struct
+{
+  const char *name;
+  grub_size_t nmpisig;
+  grub_size_t nmpipub;
+  struct gcry_pk_spec **algo;
+  int (*pad) (gcry_mpi_t *hmpi, grub_uint8_t *hval,
+	      const gcry_md_spec_t *hash, struct grub_public_subkey *sk);
+  const char *module;
+} pkalgos[] = 
+  {
+    [1] = { "rsa", 1, 2, &grub_crypto_pk_rsa, rsa_pad, "gcry_rsa" },
+    [3] = { "rsa", 1, 2, &grub_crypto_pk_rsa, rsa_pad, "gcry_rsa" },
+    [17] = { "dsa", 2, 4, &grub_crypto_pk_dsa, dsa_pad, "gcry_dsa" },
+  };
+
+struct grub_public_key
+{
+  struct grub_public_key *next;
+  struct grub_public_subkey *subkeys;
+};
+
+struct grub_public_subkey
+{
+  struct grub_public_subkey *next;
+  grub_uint8_t type;
+  grub_uint32_t fingerprint[5];
+  gcry_mpi_t mpis[10];
+};
+
+static void
+free_pk (struct grub_public_key *pk)
+{
+  struct grub_public_subkey *nsk, *sk;
+  for (sk = pk->subkeys; sk; sk = nsk)
+    {
+      grub_size_t i;
+      for (i = 0; i < ARRAY_SIZE (sk->mpis); i++)
+	if (sk->mpis[i])
+	  gcry_mpi_release (sk->mpis[i]);
+      nsk = sk->next;
+      grub_free (sk);
+    }
+  grub_free (pk);
+}
+
+#define READBUF_SIZE 4096
+
+struct grub_public_key *
+grub_load_public_key (grub_file_t f)
+{
+  grub_err_t err;
+  struct grub_public_key *ret;
+  struct grub_public_subkey **last = 0;
+  void *fingerprint_context = NULL;
+  grub_uint8_t *buffer = NULL;
+
+  ret = grub_zalloc (sizeof (*ret));
+  if (!ret)
+    {
+      grub_free (fingerprint_context);
+      return NULL;
+    }
+
+  buffer = grub_zalloc (READBUF_SIZE);
+  fingerprint_context = grub_zalloc (GRUB_MD_SHA1->contextsize);
+
+  if (!buffer || !fingerprint_context)
+    goto fail;
+
+  last = &ret->subkeys;
+
+  while (1)
+    {
+      grub_uint8_t type;
+      grub_size_t len;
+      grub_uint8_t v, pk;
+      grub_uint32_t creation_time;
+      grub_off_t pend;
+      struct grub_public_subkey *sk;
+      grub_size_t i;
+      grub_uint16_t len_be;
+
+      err = read_packet_header (f, &type, &len);
+
+      if (err)
+	goto fail;
+      if (type == 0xfe)
+	continue;
+      if (type == 0xff)
+	{
+	  grub_free (fingerprint_context);
+	  grub_free (buffer);
+	  return ret;
+	}
+
+      grub_dprintf ("crypt", "len = %x\n", (int) len);
+
+      pend = grub_file_tell (f) + len;
+      if (type != 6 && type != 14
+	  && type != 5 && type != 7)
+	{
+	  grub_file_seek (f, pend);
+	  continue;
+	}
+
+      if (grub_file_read (f, &v, sizeof (v)) != sizeof (v))
+	{
+	  grub_error (GRUB_ERR_BAD_SIGNATURE, N_("bad signature"));
+	  goto fail;
+	}
+
+      grub_dprintf ("crypt", "v = %x\n", v);
+
+      if (v != 4)
+	{
+	  grub_error (GRUB_ERR_BAD_SIGNATURE, N_("bad signature"));
+	  goto fail;
+	}
+      if (grub_file_read (f, &creation_time, sizeof (creation_time)) != sizeof (creation_time))
+	{
+	  grub_error (GRUB_ERR_BAD_SIGNATURE, N_("bad signature"));
+	  goto fail;
+	}
+
+      grub_dprintf ("crypt", "time = %x\n", creation_time);
+
+      if (grub_file_read (f, &pk, sizeof (pk)) != sizeof (pk))
+	{
+	  grub_error (GRUB_ERR_BAD_SIGNATURE, N_("bad signature"));
+	  goto fail;
+	}
+
+      grub_dprintf ("crypt", "pk = %x\n", pk);
+
+      if (pk >= ARRAY_SIZE (pkalgos) || pkalgos[pk].name == NULL)
+	{
+	  grub_file_seek (f, pend);
+	  continue;
+	}
+
+      sk = grub_zalloc (sizeof (struct grub_public_subkey));
+      if (!sk)
+	goto fail;
+
+      grub_memset (fingerprint_context, 0, GRUB_MD_SHA1->contextsize);
+      GRUB_MD_SHA1->init (fingerprint_context);
+      GRUB_MD_SHA1->write (fingerprint_context, "\x99", 1);
+      len_be = grub_cpu_to_be16 (len);
+      GRUB_MD_SHA1->write (fingerprint_context, &len_be, sizeof (len_be));
+      GRUB_MD_SHA1->write (fingerprint_context, &v, sizeof (v));
+      GRUB_MD_SHA1->write (fingerprint_context, &creation_time, sizeof (creation_time));
+      GRUB_MD_SHA1->write (fingerprint_context, &pk, sizeof (pk));
+
+      for (i = 0; i < pkalgos[pk].nmpipub; i++)
+	{
+	  grub_uint16_t l;
+	  grub_size_t lb;
+	  if (grub_file_read (f, &l, sizeof (l)) != sizeof (l))
+	    {
+	      grub_error (GRUB_ERR_BAD_SIGNATURE, N_("bad signature"));
+	      break;
+	    }
+	  
+	  lb = (grub_be_to_cpu16 (l) + GRUB_CHAR_BIT - 1) / GRUB_CHAR_BIT;
+	  if (lb > READBUF_SIZE - sizeof (grub_uint16_t))
+	    {
+	      grub_error (GRUB_ERR_BAD_SIGNATURE, N_("bad signature"));
+	      break;
+	    }
+	  if (grub_file_read (f, buffer + sizeof (grub_uint16_t), lb) != (grub_ssize_t) lb)
+	    {
+	      grub_error (GRUB_ERR_BAD_SIGNATURE, N_("bad signature"));
+	      break;
+	    }
+	  grub_memcpy (buffer, &l, sizeof (l));
+
+	  GRUB_MD_SHA1->write (fingerprint_context, buffer, lb + sizeof (grub_uint16_t));
+ 
+	  if (gcry_mpi_scan (&sk->mpis[i], GCRYMPI_FMT_PGP,
+			     buffer, lb + sizeof (grub_uint16_t), 0))
+	    {
+	      grub_error (GRUB_ERR_BAD_SIGNATURE, N_("bad signature"));
+	      break;
+	    }
+	}
+
+      if (i < pkalgos[pk].nmpipub)
+	{
+	  grub_free (sk);
+	  goto fail;
+	}
+
+      GRUB_MD_SHA1->final (fingerprint_context);
+
+      grub_memcpy (sk->fingerprint, GRUB_MD_SHA1->read (fingerprint_context), 20);
+
+      *last = sk;
+      last = &sk->next;
+
+      grub_dprintf ("crypt", "actual pos: %x, expected: %x\n", (int)grub_file_tell (f), (int)pend);
+
+      grub_file_seek (f, pend);
+    }
+ fail:
+  free_pk (ret);
+  grub_free (fingerprint_context);
+  grub_free (buffer);
+  return NULL;
+}
+
+struct grub_public_key *grub_pk_trusted;
+
+struct grub_public_subkey *
+grub_crypto_pk_locate_subkey (grub_uint64_t keyid, struct grub_public_key *pkey)
+{
+  struct grub_public_subkey *sk;
+  for (sk = pkey->subkeys; sk; sk = sk->next)
+    if (grub_memcmp (sk->fingerprint + 3, &keyid, 8) == 0)
+      return sk;
+  return 0;
+}
+
+struct grub_public_subkey *
+grub_crypto_pk_locate_subkey_in_trustdb (grub_uint64_t keyid)
+{
+  struct grub_public_key *pkey;
+  struct grub_public_subkey *sk;
+  for (pkey = grub_pk_trusted; pkey; pkey = pkey->next)
+    {
+      sk = grub_crypto_pk_locate_subkey (keyid, pkey);
+      if (sk)
+	return sk;
+    }
+  return 0;
+}
+
+
+static int
+dsa_pad (gcry_mpi_t *hmpi, grub_uint8_t *hval,
+	 const gcry_md_spec_t *hash, struct grub_public_subkey *sk)
+{
+  unsigned nbits = gcry_mpi_get_nbits (sk->mpis[1]);
+  grub_dprintf ("crypt", "must be %u bits got %d bits\n", nbits,
+		(int)(8 * hash->mdlen));
+  return gcry_mpi_scan (hmpi, GCRYMPI_FMT_USG, hval,
+			nbits / 8 < (unsigned) hash->mdlen ? nbits / 8
+			: (unsigned) hash->mdlen, 0);
+}
+
+static int
+rsa_pad (gcry_mpi_t *hmpi, grub_uint8_t *hval,
+	 const gcry_md_spec_t *hash, struct grub_public_subkey *sk)
+{
+  grub_size_t tlen, emlen, fflen;
+  grub_uint8_t *em, *emptr;
+  unsigned nbits = gcry_mpi_get_nbits (sk->mpis[0]);
+  int ret;
+  tlen = hash->mdlen + hash->asnlen;
+  emlen = (nbits + 7) / 8;
+  if (emlen < tlen + 11)
+    return 1;
+
+  em = grub_malloc (emlen);
+  if (!em)
+    return 1;
+
+  em[0] = 0x00;
+  em[1] = 0x01;
+  fflen = emlen - tlen - 3;
+  for (emptr = em + 2; emptr < em + 2 + fflen; emptr++)
+    *emptr = 0xff;
+  *emptr++ = 0x00;
+  grub_memcpy (emptr, hash->asnoid, hash->asnlen);
+  emptr += hash->asnlen;
+  grub_memcpy (emptr, hval, hash->mdlen);
+
+  ret = gcry_mpi_scan (hmpi, GCRYMPI_FMT_USG, em, emlen, 0);
+  grub_free (em);
+  return ret;
+}
+
+struct grub_pubkey_context
+{
+  grub_file_t sig;
+  struct signature_v4_header v4;
+  grub_uint8_t v;
+  const gcry_md_spec_t *hash;
+  void *hash_context;
+};
+
+static grub_err_t
+grub_verify_signature_init (struct grub_pubkey_context *ctxt, grub_file_t sig)
+{
+  grub_size_t len;
+  grub_uint8_t h;
+  grub_uint8_t t;
+  grub_uint8_t pk;
+  grub_err_t err;
+  grub_uint8_t type = 0;
+
+  grub_memset (ctxt, 0, sizeof (*ctxt));
+
+  err = read_packet_header (sig, &type, &len);
+  if (err)
+    return err;
+
+  if (type != 0x2)
+    return grub_error (GRUB_ERR_BAD_SIGNATURE, N_("bad signature"));
+
+  if (grub_file_read (sig, &ctxt->v, sizeof (ctxt->v)) != sizeof (ctxt->v))
+    return grub_error (GRUB_ERR_BAD_SIGNATURE, N_("bad signature"));
+
+  if (ctxt->v != 4)
+    return grub_error (GRUB_ERR_BAD_SIGNATURE, N_("bad signature"));
+
+  if (grub_file_read (sig, &ctxt->v4, sizeof (ctxt->v4)) != sizeof (ctxt->v4))
+    return grub_error (GRUB_ERR_BAD_SIGNATURE, N_("bad signature"));
+
+  h = ctxt->v4.hash;
+  t = ctxt->v4.type;
+  pk = ctxt->v4.pkeyalgo;
+  
+  if (t != 0)
+    return grub_error (GRUB_ERR_BAD_SIGNATURE, N_("bad signature"));
+
+  if (h >= ARRAY_SIZE (hashes) || hashes[h] == NULL)
+    return grub_error (GRUB_ERR_BAD_SIGNATURE, "unknown hash");
+
+  if (pk >= ARRAY_SIZE (pkalgos) || pkalgos[pk].name == NULL)
+    return grub_error (GRUB_ERR_BAD_SIGNATURE, N_("bad signature"));
+
+  ctxt->hash = grub_crypto_lookup_md_by_name (hashes[h]);
+  if (!ctxt->hash)
+    return grub_error (GRUB_ERR_BAD_SIGNATURE, "hash `%s' not loaded", hashes[h]);
+
+  grub_dprintf ("crypt", "alive\n");
+
+  ctxt->hash_context = grub_zalloc (ctxt->hash->contextsize);
+  if (!ctxt->hash_context)
+    return grub_errno;
+
+  ctxt->hash->init (ctxt->hash_context);
+  ctxt->sig = sig;
+
+  return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_pubkey_write (void *ctxt_, void *buf, grub_size_t size)
+{
+  struct grub_pubkey_context *ctxt = ctxt_;
+  ctxt->hash->write (ctxt->hash_context, buf, size);
+  return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_verify_signature_real (struct grub_pubkey_context *ctxt,
+			    struct grub_public_key *pkey)
+{
+  gcry_mpi_t mpis[10];
+  grub_uint8_t pk = ctxt->v4.pkeyalgo;
+  grub_size_t i;
+  grub_uint8_t *readbuf = NULL;
+  unsigned char *hval;
+  grub_ssize_t rem = grub_be_to_cpu16 (ctxt->v4.hashed_sub);
+  grub_uint32_t headlen = grub_cpu_to_be32 (rem + 6);
+  grub_uint8_t s;
+  grub_uint16_t unhashed_sub;
+  grub_ssize_t r;
+  grub_uint8_t hash_start[2];
+  gcry_mpi_t hmpi;
+  grub_uint64_t keyid = 0;
+  struct grub_public_subkey *sk;
+
+  readbuf = grub_malloc (READBUF_SIZE);
+  if (!readbuf)
+    goto fail;
+
+  ctxt->hash->write (ctxt->hash_context, &ctxt->v, sizeof (ctxt->v));
+  ctxt->hash->write (ctxt->hash_context, &ctxt->v4, sizeof (ctxt->v4));
+  while (rem)
+    {
+      r = grub_file_read (ctxt->sig, readbuf,
+			  rem < READBUF_SIZE ? rem : READBUF_SIZE);
+      if (r < 0)
+	goto fail;
+      if (r == 0)
+	break;
+      ctxt->hash->write (ctxt->hash_context, readbuf, r);
+      rem -= r;
+    }
+  ctxt->hash->write (ctxt->hash_context, &ctxt->v, sizeof (ctxt->v));
+  s = 0xff;
+  ctxt->hash->write (ctxt->hash_context, &s, sizeof (s));
+  ctxt->hash->write (ctxt->hash_context, &headlen, sizeof (headlen));
+  r = grub_file_read (ctxt->sig, &unhashed_sub, sizeof (unhashed_sub));
+  if (r != sizeof (unhashed_sub))
+    goto fail;
+  {
+    grub_uint8_t *ptr;
+    grub_uint32_t l;
+    rem = grub_be_to_cpu16 (unhashed_sub);
+    if (rem > READBUF_SIZE)
+      goto fail;
+    r = grub_file_read (ctxt->sig, readbuf, rem);
+    if (r != rem)
+      goto fail;
+    for (ptr = readbuf; ptr < readbuf + rem; ptr += l)
+      {
+	if (*ptr < 192)
+	  l = *ptr++;
+	else if (*ptr < 255)
+	  {
+	    if (ptr + 1 >= readbuf + rem)
+	      break;
+	    l = (((ptr[0] & ~192) << GRUB_CHAR_BIT) | ptr[1]) + 192;
+	    ptr += 2;
+	  }
+	else
+	  {
+	    if (ptr + 5 >= readbuf + rem)
+	      break;
+	    l = grub_be_to_cpu32 (grub_get_unaligned32 (ptr + 1));
+	    ptr += 5;
+	  }
+	if (*ptr == 0x10 && l >= 8)
+	  keyid = grub_get_unaligned64 (ptr + 1);
+      }
+  }
+
+  ctxt->hash->final (ctxt->hash_context);
+
+  grub_dprintf ("crypt", "alive\n");
+
+  hval = ctxt->hash->read (ctxt->hash_context);
+
+  if (grub_file_read (ctxt->sig, hash_start, sizeof (hash_start)) != sizeof (hash_start))
+    goto fail;
+  if (grub_memcmp (hval, hash_start, sizeof (hash_start)) != 0)
+    goto fail;
+
+  grub_dprintf ("crypt", "@ %x\n", (int)grub_file_tell (ctxt->sig));
+
+  for (i = 0; i < pkalgos[pk].nmpisig; i++)
+    {
+      grub_uint16_t l;
+      grub_size_t lb;
+      grub_dprintf ("crypt", "alive\n");
+      if (grub_file_read (ctxt->sig, &l, sizeof (l)) != sizeof (l))
+	goto fail;
+      grub_dprintf ("crypt", "alive\n");
+      lb = (grub_be_to_cpu16 (l) + 7) / 8;
+      grub_dprintf ("crypt", "l = 0x%04x\n", grub_be_to_cpu16 (l));
+      if (lb > READBUF_SIZE - sizeof (grub_uint16_t))
+	goto fail;
+      grub_dprintf ("crypt", "alive\n");
+      if (grub_file_read (ctxt->sig, readbuf + sizeof (grub_uint16_t), lb) != (grub_ssize_t) lb)
+	goto fail;
+      grub_dprintf ("crypt", "alive\n");
+      grub_memcpy (readbuf, &l, sizeof (l));
+      grub_dprintf ("crypt", "alive\n");
+
+      if (gcry_mpi_scan (&mpis[i], GCRYMPI_FMT_PGP,
+			 readbuf, lb + sizeof (grub_uint16_t), 0))
+	goto fail;
+      grub_dprintf ("crypt", "alive\n");
+    }
+
+  if (pkey)
+    sk = grub_crypto_pk_locate_subkey (keyid, pkey);
+  else
+    sk = grub_crypto_pk_locate_subkey_in_trustdb (keyid);
+  if (!sk)
+    {
+      /* TRANSLATORS: %08x is 32-bit key id.  */
+      grub_error (GRUB_ERR_BAD_SIGNATURE,
+		  N_("public key %08" PRIxGRUB_UINT64_T " not found"), keyid);
+      goto fail;
+    }
+
+  if (pkalgos[pk].pad (&hmpi, hval, ctxt->hash, sk))
+    goto fail;
+  if (!*pkalgos[pk].algo)
+    {
+      grub_dl_load (pkalgos[pk].module);
+      grub_errno = GRUB_ERR_NONE;
+    }
+
+  if (!*pkalgos[pk].algo)
+    {
+      grub_error (GRUB_ERR_BAD_SIGNATURE, N_("module `%s' isn't loaded"),
+		  pkalgos[pk].module);
+      goto fail;
+    }
+  if ((*pkalgos[pk].algo)->verify (0, hmpi, mpis, sk->mpis, 0, 0))
+    goto fail;
+
+  grub_free (readbuf);
+
+  return GRUB_ERR_NONE;
+
+ fail:
+  grub_free (readbuf);
+  if (!grub_errno)
+    return grub_error (GRUB_ERR_BAD_SIGNATURE, N_("bad signature"));
+  return grub_errno;
+}
+
+static void
+grub_pubkey_close_real (struct grub_pubkey_context *ctxt)
+{
+  if (ctxt->sig)
+    grub_file_close (ctxt->sig);
+  if (ctxt->hash_context)
+    grub_free (ctxt->hash_context);
+}
+
+static void
+grub_pubkey_close (void *ctxt)
+{
+  grub_pubkey_close_real (ctxt);
+  grub_free (ctxt);
+}
+
+grub_err_t
+grub_verify_signature (grub_file_t f, const char *fsig,
+		       struct grub_public_key *pkey)
+{
+  grub_file_t sig;
+  grub_err_t err;
+  struct grub_pubkey_context ctxt;
+  grub_uint8_t *readbuf = NULL;
+
+  sig = grub_file_open (fsig,
+			GRUB_FILE_TYPE_SIGNATURE
+			| GRUB_FILE_TYPE_NO_DECOMPRESS);
+  if (!sig)
+    return grub_errno;
+
+  err = grub_verify_signature_init (&ctxt, sig);
+  if (err)
+    {
+      grub_file_close (sig);
+      return err;
+    }
+
+  readbuf = grub_zalloc (READBUF_SIZE);
+  if (!readbuf)
+    goto fail;
+
+  while (1)
+    {
+      grub_ssize_t r;
+      r = grub_file_read (f, readbuf, READBUF_SIZE);
+      if (r < 0)
+	goto fail;
+      if (r == 0)
+	break;
+      err = grub_pubkey_write (&ctxt, readbuf, r);
+      if (err)
+	return err;
+    }
+
+  grub_verify_signature_real (&ctxt, pkey);
+ fail:
+  grub_pubkey_close_real (&ctxt);
+  return grub_errno;
+}
+
+static grub_err_t
+grub_cmd_trust (grub_extcmd_context_t ctxt,
+		int argc, char **args)
+{
+  grub_file_t pkf;
+  struct grub_public_key *pk = NULL;
+
+  if (argc < 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected"));
+
+  pkf = grub_file_open (args[0],
+			GRUB_FILE_TYPE_PUBLIC_KEY_TRUST
+			| GRUB_FILE_TYPE_NO_DECOMPRESS
+			| (ctxt->state[OPTION_SKIP_SIG].set
+			   ? GRUB_FILE_TYPE_SKIP_SIGNATURE
+			   : GRUB_FILE_TYPE_NONE));
+  if (!pkf)
+    return grub_errno;
+  pk = grub_load_public_key (pkf);
+  if (!pk)
+    {
+      grub_file_close (pkf);
+      return grub_errno;
+    }
+  grub_file_close (pkf);
+
+  pk->next = grub_pk_trusted;
+  grub_pk_trusted = pk;
+
+  return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_cmd_list (grub_command_t cmd  __attribute__ ((unused)),
+	       int argc __attribute__ ((unused)),
+	       char **args __attribute__ ((unused)))
+{
+  struct grub_public_key *pk = NULL;
+  struct grub_public_subkey *sk = NULL;
+
+  for (pk = grub_pk_trusted; pk; pk = pk->next)
+    for (sk = pk->subkeys; sk; sk = sk->next)
+      {
+	unsigned i;
+	for (i = 0; i < 20; i += 2)
+	  grub_printf ("%02x%02x ", ((grub_uint8_t *) sk->fingerprint)[i],
+		       ((grub_uint8_t *) sk->fingerprint)[i + 1]);
+	grub_printf ("\n");
+      }
+
+  return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_cmd_distrust (grub_command_t cmd  __attribute__ ((unused)),
+		   int argc, char **args)
+{
+  grub_uint32_t keyid, keyid_be;
+  struct grub_public_key **pkey;
+  struct grub_public_subkey *sk;
+
+  if (argc < 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected"));
+  keyid = grub_strtoull (args[0], 0, 16);
+  if (grub_errno)
+    return grub_errno;
+  keyid_be = grub_cpu_to_be32 (keyid);
+
+  for (pkey = &grub_pk_trusted; *pkey; pkey = &((*pkey)->next))
+    {
+      struct grub_public_key *next;
+      for (sk = (*pkey)->subkeys; sk; sk = sk->next)
+	if (grub_memcmp (sk->fingerprint + 4, &keyid_be, 4) == 0)
+	  break;
+      if (!sk)
+	continue;
+      next = (*pkey)->next;
+      free_pk (*pkey);
+      *pkey = next;
+      return GRUB_ERR_NONE;
+    }
+  /* TRANSLATORS: %08x is 32-bit key id.  */
+  return grub_error (GRUB_ERR_BAD_SIGNATURE, N_("public key %08x not found"), keyid);
+}
+
+static grub_err_t
+grub_cmd_verify_signature (grub_extcmd_context_t ctxt,
+			   int argc, char **args)
+{
+  grub_file_t f = NULL;
+  grub_err_t err = GRUB_ERR_NONE;
+  struct grub_public_key *pk = NULL;
+
+  grub_dprintf ("crypt", "alive\n");
+
+  if (argc < 2)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("two arguments expected"));
+
+  grub_dprintf ("crypt", "alive\n");
+
+  if (argc > 2)
+    {
+      grub_file_t pkf;
+      pkf = grub_file_open (args[2],
+			    GRUB_FILE_TYPE_PUBLIC_KEY
+			    | GRUB_FILE_TYPE_NO_DECOMPRESS
+			    | (ctxt->state[OPTION_SKIP_SIG].set
+			       ? GRUB_FILE_TYPE_SKIP_SIGNATURE
+			       : GRUB_FILE_TYPE_NONE));
+      if (!pkf)
+	return grub_errno;
+      pk = grub_load_public_key (pkf);
+      if (!pk)
+	{
+	  grub_file_close (pkf);
+	  return grub_errno;
+	}
+      grub_file_close (pkf);
+    }
+
+  f = grub_file_open (args[0], GRUB_FILE_TYPE_VERIFY_SIGNATURE);
+  if (!f)
+    {
+      err = grub_errno;
+      goto fail;
+    }
+
+  err = grub_verify_signature (f, args[1], pk);
+ fail:
+  if (f)
+    grub_file_close (f);
+  if (pk)
+    free_pk (pk);
+  return err;
+}
+
+static int sec = 0;
+
+static grub_err_t
+grub_pubkey_init (grub_file_t io, enum grub_file_type type __attribute__ ((unused)),
+		  void **context, enum grub_verify_flags *flags)
+{
+  grub_file_t sig;
+  char *fsuf, *ptr;
+  grub_err_t err;
+  struct grub_pubkey_context *ctxt;
+
+  if (!sec)
+    {
+      *flags = GRUB_VERIFY_FLAGS_SKIP_VERIFICATION;
+      return GRUB_ERR_NONE;
+    }
+
+  fsuf = grub_malloc (grub_strlen (io->name) + sizeof (".sig"));
+  if (!fsuf)
+    return grub_errno;
+  ptr = grub_stpcpy (fsuf, io->name);
+  grub_memcpy (ptr, ".sig", sizeof (".sig"));
+
+  sig = grub_file_open (fsuf, GRUB_FILE_TYPE_SIGNATURE);
+  grub_free (fsuf);
+  if (!sig)
+    return grub_errno;
+
+  ctxt = grub_malloc (sizeof (*ctxt));
+  if (!ctxt)
+    {
+      grub_file_close (sig);
+      return grub_errno;
+    }
+  err = grub_verify_signature_init (ctxt, sig);
+  if (err)
+    {
+      grub_free (ctxt);
+      grub_file_close (sig);
+      return err;
+    }
+  *context = ctxt;
+  return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_pubkey_fini (void *ctxt)
+{
+  return grub_verify_signature_real (ctxt, NULL);
+}
+
+static char *
+grub_env_write_sec (struct grub_env_var *var __attribute__ ((unused)),
+		    const char *val)
+{
+  sec = (*val == '1') || (*val == 'e');
+  return grub_strdup (sec ? "enforce" : "no");
+}
+
+static grub_ssize_t 
+pseudo_read (struct grub_file *file, char *buf, grub_size_t len)
+{
+  grub_memcpy (buf, (grub_uint8_t *) file->data + file->offset, len);
+  return len;
+}
+
+
+/* Filesystem descriptor.  */
+struct grub_fs pseudo_fs = 
+  {
+    .name = "pseudo",
+    .fs_read = pseudo_read
+  };
+
+struct grub_file_verifier grub_pubkey_verifier =
+  {
+    .name = "pgp",
+    .init = grub_pubkey_init,
+    .fini = grub_pubkey_fini,
+    .write = grub_pubkey_write,
+    .close = grub_pubkey_close,
+  };
+
+static grub_extcmd_t cmd, cmd_trust;
+static grub_command_t cmd_distrust, cmd_list;
+
+GRUB_MOD_INIT(pgp)
+{
+  const char *val;
+  struct grub_module_header *header;
+
+  val = grub_env_get ("check_signatures");
+  if (val && (val[0] == '1' || val[0] == 'e'))
+    sec = 1;
+  else
+    sec = 0;
+
+  grub_register_variable_hook ("check_signatures", 0, grub_env_write_sec);
+  grub_env_export ("check_signatures");
+
+  grub_pk_trusted = 0;
+  FOR_MODULES (header)
+  {
+    struct grub_file pseudo_file;
+    struct grub_public_key *pk = NULL;
+
+    grub_memset (&pseudo_file, 0, sizeof (pseudo_file));
+
+    /* Not an ELF module, skip.  */
+    if (header->type != OBJ_TYPE_PUBKEY)
+      continue;
+
+    pseudo_file.fs = &pseudo_fs;
+    pseudo_file.size = (header->size - sizeof (struct grub_module_header));
+    pseudo_file.data = (char *) header + sizeof (struct grub_module_header);
+
+    pk = grub_load_public_key (&pseudo_file);
+    if (!pk)
+      grub_fatal ("error loading initial key: %s\n", grub_errmsg);
+
+    pk->next = grub_pk_trusted;
+    grub_pk_trusted = pk;
+  }
+
+  if (!val)
+    grub_env_set ("check_signatures", grub_pk_trusted ? "enforce" : "no");
+
+  cmd = grub_register_extcmd ("verify_detached", grub_cmd_verify_signature, 0,
+			      N_("[-s|--skip-sig] FILE SIGNATURE_FILE [PUBKEY_FILE]"),
+			      N_("Verify detached signature."),
+			      options);
+  cmd_trust = grub_register_extcmd ("trust", grub_cmd_trust, 0,
+				     N_("[-s|--skip-sig] PUBKEY_FILE"),
+				     N_("Add PUBKEY_FILE to trusted keys."),
+				     options);
+  cmd_list = grub_register_command ("list_trusted", grub_cmd_list,
+				    0,
+				    N_("Show the list of trusted keys."));
+  cmd_distrust = grub_register_command ("distrust", grub_cmd_distrust,
+					N_("PUBKEY_ID"),
+					N_("Remove PUBKEY_ID from trusted keys."));
+
+  grub_verifier_register (&grub_pubkey_verifier);
+}
+
+GRUB_MOD_FINI(pgp)
+{
+  grub_verifier_unregister (&grub_pubkey_verifier);
+  grub_unregister_extcmd (cmd);
+  grub_unregister_extcmd (cmd_trust);
+  grub_unregister_command (cmd_list);
+  grub_unregister_command (cmd_distrust);
+}
diff --git a/grub-core/commands/probe.c b/grub-core/commands/probe.c
new file mode 100644
index 0000000..e53b611
--- /dev/null
+++ b/grub-core/commands/probe.c
@@ -0,0 +1,225 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/err.h>
+#include <grub/dl.h>
+#include <grub/device.h>
+#include <grub/disk.h>
+#include <grub/partition.h>
+#include <grub/gpt_partition.h>
+#include <grub/net.h>
+#include <grub/fs.h>
+#include <grub/file.h>
+#include <grub/misc.h>
+#include <grub/env.h>
+#include <grub/extcmd.h>
+#include <grub/i18n.h>
+#include <grub/i386/pc/boot.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const struct grub_arg_option options[] =
+  {
+    {"set",             's', 0,
+     N_("Set a variable to return value."), N_("VARNAME"), ARG_TYPE_STRING},
+    /* TRANSLATORS: It's a driver that is currently in use to access
+       the diven disk.  */
+    {"driver",		'd', 0, N_("Determine driver."), 0, 0},
+    {"partmap",		'p', 0, N_("Determine partition map type."), 0, 0},
+    {"fs",		'f', 0, N_("Determine filesystem type."), 0, 0},
+    {"fs-uuid",		'u', 0, N_("Determine filesystem UUID."), 0, 0},
+    {"label",		'l', 0, N_("Determine filesystem label."), 0, 0},
+    {"part-uuid",	0,   0, N_("Determine partition UUID."), 0, 0},
+    {0, 0, 0, 0, 0, 0}
+  };
+
+static grub_err_t
+grub_cmd_probe (grub_extcmd_context_t ctxt, int argc, char **args)
+{
+  struct grub_arg_list *state = ctxt->state;
+  grub_device_t dev;
+  grub_fs_t fs;
+  char *ptr;
+  grub_err_t err;
+
+  if (argc < 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "device name required");
+
+  ptr = args[0] + grub_strlen (args[0]) - 1;
+  if (args[0][0] == '(' && *ptr == ')')
+    {
+      *ptr = 0;
+      dev = grub_device_open (args[0] + 1);
+      *ptr = ')';
+    }
+  else
+    dev = grub_device_open (args[0]);
+  if (! dev)
+    return grub_errno;
+
+  if (state[1].set)
+    {
+      const char *val = "none";
+      if (dev->net)
+	val = dev->net->protocol->name;
+      if (dev->disk)
+	val = dev->disk->dev->name;
+      if (state[0].set)
+	grub_env_set (state[0].arg, val);
+      else
+	grub_printf ("%s", val);
+      grub_device_close (dev);
+      return GRUB_ERR_NONE;
+    }
+  if (state[2].set)
+    {
+      const char *val = "none";
+      if (dev->disk && dev->disk->partition)
+	val = dev->disk->partition->partmap->name;
+      if (state[0].set)
+	grub_env_set (state[0].arg, val);
+      else
+	grub_printf ("%s", val);
+      grub_device_close (dev);
+      return GRUB_ERR_NONE;
+    }
+  if (state[6].set)
+    {
+      /* AAAABBBB-CCCC-DDDD-EEEE-FFFFFFFFFFFF + null terminator */
+      char val[37] = "none";
+      if (dev->disk && dev->disk->partition)
+	{
+	  struct grub_partition *p = dev->disk->partition;
+	  grub_disk_t disk = grub_disk_open(dev->disk->name);
+
+	  if (!disk)
+	    {
+	      grub_device_close (dev);
+	      return grub_errno;
+	    }
+
+	  if (grub_strcmp(dev->disk->partition->partmap->name, "gpt") == 0)
+	    {
+	      struct grub_gpt_partentry entry;
+	      grub_gpt_part_guid_t *guid;
+
+	      if (grub_disk_read(disk, p->offset, p->index, sizeof(entry), &entry))
+		return grub_errno;
+	      guid = &entry.guid;
+	      grub_snprintf (val, sizeof(val),
+			     "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
+			     grub_le_to_cpu32 (guid->data1),
+			     grub_le_to_cpu16 (guid->data2),
+			     grub_le_to_cpu16 (guid->data3),
+			     guid->data4[0], guid->data4[1], guid->data4[2],
+			     guid->data4[3], guid->data4[4], guid->data4[5],
+			     guid->data4[6], guid->data4[7]);
+	    }
+	  else if (grub_strcmp(dev->disk->partition->partmap->name, "msdos") == 0)
+	    {
+	      grub_uint32_t nt_disk_sig;
+
+	      if (grub_disk_read(disk, 0, GRUB_BOOT_MACHINE_WINDOWS_NT_MAGIC,
+				 sizeof(nt_disk_sig), &nt_disk_sig) == 0)
+		grub_snprintf (val, sizeof(val), "%08x-%02x",
+			       grub_le_to_cpu32(nt_disk_sig), 1 + p->number);
+	    }
+	  grub_disk_close(disk);
+	}
+      if (state[0].set)
+	grub_env_set (state[0].arg, val);
+      else
+	grub_printf ("%s", val);
+      grub_device_close (dev);
+      return GRUB_ERR_NONE;
+    }
+  fs = grub_fs_probe (dev);
+  if (! fs)
+    return grub_errno;
+  if (state[3].set)
+    {
+      if (state[0].set)
+	grub_env_set (state[0].arg, fs->name);
+      else
+	grub_printf ("%s", fs->name);
+      grub_device_close (dev);
+      return GRUB_ERR_NONE;
+    }
+  if (state[4].set)
+    {
+      char *uuid;
+      if (! fs->fs_uuid)
+	return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
+			   N_("%s does not support UUIDs"), fs->name);
+      err = fs->fs_uuid (dev, &uuid);
+      if (err)
+	return err;
+      if (! uuid)
+	return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
+			   N_("%s does not support UUIDs"), fs->name);
+
+      if (state[0].set)
+	grub_env_set (state[0].arg, uuid);
+      else
+	grub_printf ("%s", uuid);
+      grub_free (uuid);
+      grub_device_close (dev);
+      return GRUB_ERR_NONE;
+    }
+  if (state[5].set)
+    {
+      char *label;
+      if (! fs->fs_label)
+	return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
+			   N_("filesystem `%s' does not support labels"),
+			   fs->name);
+      err = fs->fs_label (dev, &label);
+      if (err)
+	return err;
+      if (! label)
+	return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
+			   N_("filesystem `%s' does not support labels"),
+			   fs->name);
+
+      if (state[0].set)
+	grub_env_set (state[0].arg, label);
+      else
+	grub_printf ("%s", label);
+      grub_free (label);
+      grub_device_close (dev);
+      return GRUB_ERR_NONE;
+    }
+  grub_device_close (dev);
+  return grub_error (GRUB_ERR_BAD_ARGUMENT, "unrecognised target");
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT (probe)
+{
+  cmd = grub_register_extcmd ("probe", grub_cmd_probe, 0, N_("DEVICE"),
+			      N_("Retrieve device info."), options);
+}
+
+GRUB_MOD_FINI (probe)
+{
+  grub_unregister_extcmd (cmd);
+}
diff --git a/grub-core/commands/read.c b/grub-core/commands/read.c
new file mode 100644
index 0000000..fe3e88b
--- /dev/null
+++ b/grub-core/commands/read.c
@@ -0,0 +1,92 @@
+/* read.c - Command to read variables from user.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2006,2007,2008  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/env.h>
+#include <grub/term.h>
+#include <grub/types.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static char *
+grub_getline (void)
+{
+  int i;
+  char *line;
+  char *tmp;
+  char c;
+
+  i = 0;
+  line = grub_malloc (1 + i + sizeof('\0'));
+  if (! line)
+    return NULL;
+
+  while (1)
+    {
+      c = grub_getkey ();
+      if ((c == '\n') || (c == '\r'))
+	break;
+
+      line[i] = c;
+      if (grub_isprint (c))
+	grub_printf ("%c", c);
+      i++;
+      tmp = grub_realloc (line, 1 + i + sizeof('\0'));
+      if (! tmp)
+	{
+	  grub_free (line);
+	  return NULL;
+	}
+      line = tmp;
+    }
+  line[i] = '\0';
+
+  return line;
+}
+
+static grub_err_t
+grub_cmd_read (grub_command_t cmd __attribute__ ((unused)), int argc, char **args)
+{
+  char *line = grub_getline ();
+  if (! line)
+    return grub_errno;
+  if (argc > 0)
+    grub_env_set (args[0], line);
+
+  grub_free (line);
+  return 0;
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(read)
+{
+  cmd = grub_register_command ("read", grub_cmd_read,
+			       N_("[ENVVAR]"),
+			       N_("Set variable with user input."));
+}
+
+GRUB_MOD_FINI(read)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/reboot.c b/grub-core/commands/reboot.c
new file mode 100644
index 0000000..46d364c
--- /dev/null
+++ b/grub-core/commands/reboot.c
@@ -0,0 +1,46 @@
+/* reboot.c - command to reboot the computer.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2005,2007,2008  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/command.h>
+#include <grub/misc.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_err_t __attribute__ ((noreturn))
+grub_cmd_reboot (grub_command_t cmd __attribute__ ((unused)),
+		 int argc __attribute__ ((unused)),
+		 char **args __attribute__ ((unused)))
+{
+  grub_reboot ();
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(reboot)
+{
+  cmd = grub_register_command ("reboot", grub_cmd_reboot,
+			       0, N_("Reboot the computer."));
+}
+
+GRUB_MOD_FINI(reboot)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/regexp.c b/grub-core/commands/regexp.c
new file mode 100644
index 0000000..612003f
--- /dev/null
+++ b/grub-core/commands/regexp.c
@@ -0,0 +1,168 @@
+/* regexp.c -- The regexp command.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2005,2007  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/err.h>
+#include <grub/env.h>
+#include <grub/extcmd.h>
+#include <grub/i18n.h>
+#include <grub/script_sh.h>
+#include <regex.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const struct grub_arg_option options[] =
+  {
+    { "set", 's', GRUB_ARG_OPTION_REPEATABLE,
+      /* TRANSLATORS: in regexp you can mark some
+	 groups with parentheses. These groups are
+	 then numbered and you can save some of
+	 them in variables. In other programs
+	 those components aree often referenced with
+	 back slash, e.g. \1. Compare
+	 sed -e 's,\([a-z][a-z]*\),lowercase=\1,g'
+	 The whole matching component is saved in VARNAME, not its number.
+       */
+      N_("Store matched component NUMBER in VARNAME."),
+      N_("[NUMBER:]VARNAME"), ARG_TYPE_STRING },
+    { 0, 0, 0, 0, 0, 0 }
+  };
+
+static grub_err_t
+setvar (char *str, char *v, regmatch_t *m)
+{
+  char ch;
+  grub_err_t err;
+  ch = str[m->rm_eo];
+  str[m->rm_eo] = '\0';
+  err = grub_env_set (v, str + m->rm_so);
+  str[m->rm_eo] = ch;
+  return err;
+}
+
+static grub_err_t
+set_matches (char **varnames, char *str, grub_size_t nmatches,
+	     regmatch_t *matches)
+{
+  int i;
+  char *p;
+  const char * q;
+  grub_err_t err;
+  unsigned long j;
+
+  for (i = 0; varnames && varnames[i]; i++)
+    {
+      err = GRUB_ERR_NONE;
+      p = grub_strchr (varnames[i], ':');
+      if (! p)
+	{
+	  /* varname w/o index defaults to 1 */
+	  if (nmatches < 2 || matches[1].rm_so == -1)
+	    grub_env_unset (varnames[i]);
+	  else
+	    err = setvar (str, varnames[i], &matches[1]);
+	}
+      else
+	{
+	  j = grub_strtoul (varnames[i], &q, 10);
+	  if (q != p)
+	    return grub_error (GRUB_ERR_BAD_ARGUMENT,
+			       "invalid variable name format %s", varnames[i]);
+
+	  if (nmatches <= j || matches[j].rm_so == -1)
+	    grub_env_unset (p + 1);
+	  else
+	    err = setvar (str, p + 1, &matches[j]);
+	}
+
+      if (err != GRUB_ERR_NONE)
+	return err;
+    }
+  return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_cmd_regexp (grub_extcmd_context_t ctxt, int argc, char **args)
+{
+  regex_t regex;
+  int ret;
+  grub_size_t s;
+  char *comperr;
+  grub_err_t err;
+  regmatch_t *matches = 0;
+
+  if (argc != 2)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("two arguments expected"));
+
+  ret = regcomp (&regex, args[0], REG_EXTENDED);
+  if (ret)
+    goto fail;
+
+  matches = grub_calloc (regex.re_nsub + 1, sizeof (*matches));
+  if (! matches)
+    goto fail;
+
+  ret = regexec (&regex, args[1], regex.re_nsub + 1, matches, 0);
+  if (!ret)
+    {
+      err = set_matches (ctxt->state[0].args, args[1],
+			 regex.re_nsub + 1, matches);
+      regfree (&regex);
+      grub_free (matches);
+      return err;
+    }
+
+ fail:
+  grub_free (matches);
+  s = regerror (ret, &regex, 0, 0);
+  comperr = grub_malloc (s);
+  if (!comperr)
+    {
+      regfree (&regex);
+      return grub_errno;
+    }
+  regerror (ret, &regex, comperr, s);
+  err = grub_error (GRUB_ERR_TEST_FAILURE, "%s", comperr);
+  regfree (&regex);
+  grub_free (comperr);
+  return err;
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT(regexp)
+{
+  cmd = grub_register_extcmd ("regexp", grub_cmd_regexp, 0,
+			      /* TRANSLATORS: This are two arguments. So it's
+				 two separate units to translate and pay
+				 attention not to reverse them.  */
+			      N_("REGEXP STRING"),
+			      N_("Test if REGEXP matches STRING."), options);
+
+  /* Setup GRUB script wildcard translator.  */
+  grub_wildcard_translator = &grub_filename_translator;
+}
+
+GRUB_MOD_FINI(regexp)
+{
+  grub_unregister_extcmd (cmd);
+  grub_wildcard_translator = 0;
+}
diff --git a/grub-core/commands/search.c b/grub-core/commands/search.c
new file mode 100644
index 0000000..ed090b3
--- /dev/null
+++ b/grub-core/commands/search.c
@@ -0,0 +1,337 @@
+/* search.c - search devices based on a file or a filesystem label */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2005,2007,2008,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/err.h>
+#include <grub/dl.h>
+#include <grub/device.h>
+#include <grub/file.h>
+#include <grub/env.h>
+#include <grub/command.h>
+#include <grub/search.h>
+#include <grub/i18n.h>
+#include <grub/disk.h>
+#include <grub/partition.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+struct cache_entry
+{
+  struct cache_entry *next;
+  char *key;
+  char *value;
+};
+
+static struct cache_entry *cache;
+
+/* Context for FUNC_NAME.  */
+struct search_ctx
+{
+  const char *key;
+  const char *var;
+  int no_floppy;
+  char **hints;
+  unsigned nhints;
+  int count;
+  int is_cache;
+};
+
+/* Helper for FUNC_NAME.  */
+static int
+iterate_device (const char *name, void *data)
+{
+  struct search_ctx *ctx = data;
+  int found = 0;
+
+  /* Skip floppy drives when requested.  */
+  if (ctx->no_floppy &&
+      name[0] == 'f' && name[1] == 'd' && name[2] >= '0' && name[2] <= '9')
+    return 1;
+
+#ifdef DO_SEARCH_FS_UUID
+#define compare_fn grub_strcasecmp
+#else
+#define compare_fn grub_strcmp
+#endif
+
+#ifdef DO_SEARCH_FILE
+    {
+      char *buf;
+      grub_file_t file;
+
+      buf = grub_xasprintf ("(%s)%s", name, ctx->key);
+      if (! buf)
+	return 1;
+
+      file = grub_file_open (buf, GRUB_FILE_TYPE_FS_SEARCH
+			     | GRUB_FILE_TYPE_NO_DECOMPRESS);
+      if (file)
+	{
+	  found = 1;
+	  grub_file_close (file);
+	}
+      grub_free (buf);
+    }
+#else
+    {
+      /* SEARCH_FS_UUID or SEARCH_LABEL */
+      grub_device_t dev;
+      grub_fs_t fs;
+      char *quid;
+
+      dev = grub_device_open (name);
+      if (dev)
+	{
+	  fs = grub_fs_probe (dev);
+
+#ifdef DO_SEARCH_FS_UUID
+#define read_fn fs_uuid
+#else
+#define read_fn fs_label
+#endif
+
+	  if (fs && fs->read_fn)
+	    {
+	      fs->read_fn (dev, &quid);
+
+	      if (grub_errno == GRUB_ERR_NONE && quid)
+		{
+		  if (compare_fn (quid, ctx->key) == 0)
+		    found = 1;
+
+		  grub_free (quid);
+		}
+	    }
+
+	  grub_device_close (dev);
+	}
+    }
+#endif
+
+  if (!ctx->is_cache && found && ctx->count == 0)
+    {
+      struct cache_entry *cache_ent;
+      cache_ent = grub_malloc (sizeof (*cache_ent));
+      if (cache_ent)
+	{
+	  cache_ent->key = grub_strdup (ctx->key);
+	  cache_ent->value = grub_strdup (name);
+	  if (cache_ent->value && cache_ent->key)
+	    {
+	      cache_ent->next = cache;
+	      cache = cache_ent;
+	    }
+	  else
+	    {
+	      grub_free (cache_ent->value);
+	      grub_free (cache_ent->key);
+	      grub_free (cache_ent);
+	      grub_errno = GRUB_ERR_NONE;
+	    }
+	}
+      else
+	grub_errno = GRUB_ERR_NONE;
+    }
+
+  if (found)
+    {
+      ctx->count++;
+      if (ctx->var)
+	grub_env_set (ctx->var, name);
+      else
+	grub_printf (" %s", name);
+    }
+
+  grub_errno = GRUB_ERR_NONE;
+  return (found && ctx->var);
+}
+
+/* Helper for FUNC_NAME.  */
+static int
+part_hook (grub_disk_t disk, const grub_partition_t partition, void *data)
+{
+  struct search_ctx *ctx = data;
+  char *partition_name, *devname;
+  int ret;
+
+  partition_name = grub_partition_get_name (partition);
+  if (! partition_name)
+    return 1;
+
+  devname = grub_xasprintf ("%s,%s", disk->name, partition_name);
+  grub_free (partition_name);
+  if (!devname)
+    return 1;
+  ret = iterate_device (devname, ctx);
+  grub_free (devname);    
+
+  return ret;
+}
+
+/* Helper for FUNC_NAME.  */
+static void
+try (struct search_ctx *ctx)    
+{
+  unsigned i;
+  struct cache_entry **prev;
+  struct cache_entry *cache_ent;
+
+  for (prev = &cache, cache_ent = *prev; cache_ent;
+       prev = &cache_ent->next, cache_ent = *prev)
+    if (compare_fn (cache_ent->key, ctx->key) == 0)
+      break;
+  if (cache_ent)
+    {
+      ctx->is_cache = 1;
+      if (iterate_device (cache_ent->value, ctx))
+	{
+	  ctx->is_cache = 0;
+	  return;
+	}
+      ctx->is_cache = 0;
+      /* Cache entry was outdated. Remove it.  */
+      if (!ctx->count)
+	{
+	  *prev = cache_ent->next;
+	  grub_free (cache_ent->key);
+	  grub_free (cache_ent->value);
+	  grub_free (cache_ent);
+	}
+    }
+
+  for (i = 0; i < ctx->nhints; i++)
+    {
+      char *end;
+      if (!ctx->hints[i][0])
+	continue;
+      end = ctx->hints[i] + grub_strlen (ctx->hints[i]) - 1;
+      if (*end == ',')
+	*end = 0;
+      if (iterate_device (ctx->hints[i], ctx))
+	{
+	  if (!*end)
+	    *end = ',';
+	  return;
+	}
+      if (!*end)
+	{
+	  grub_device_t dev;
+	  int ret;
+	  dev = grub_device_open (ctx->hints[i]);
+	  if (!dev)
+	    {
+	      if (!*end)
+		*end = ',';
+	      continue;
+	    }
+	  if (!dev->disk)
+	    {
+	      grub_device_close (dev);
+	      if (!*end)
+		*end = ',';
+	      continue;
+	    }
+	  ret = grub_partition_iterate (dev->disk, part_hook, ctx);
+	  if (!*end)
+	    *end = ',';
+	  grub_device_close (dev);
+	  if (ret)
+	    return;
+	}
+    }
+  grub_device_iterate (iterate_device, ctx);
+}
+
+void
+FUNC_NAME (const char *key, const char *var, int no_floppy,
+	   char **hints, unsigned nhints)
+{
+  struct search_ctx ctx = {
+    .key = key,
+    .var = var,
+    .no_floppy = no_floppy,
+    .hints = hints,
+    .nhints = nhints,
+    .count = 0,
+    .is_cache = 0
+  };
+  grub_fs_autoload_hook_t saved_autoload;
+
+  /* First try without autoloading if we're setting variable. */
+  if (var)
+    {
+      saved_autoload = grub_fs_autoload_hook;
+      grub_fs_autoload_hook = 0;
+      try (&ctx);
+
+      /* Restore autoload hook.  */
+      grub_fs_autoload_hook = saved_autoload;
+
+      /* Retry with autoload if nothing found.  */
+      if (grub_errno == GRUB_ERR_NONE && ctx.count == 0)
+	try (&ctx);
+    }
+  else
+    try (&ctx);
+
+  if (grub_errno == GRUB_ERR_NONE && ctx.count == 0)
+    grub_error (GRUB_ERR_FILE_NOT_FOUND, "no such device: %s", key);
+}
+
+static grub_err_t
+grub_cmd_do_search (grub_command_t cmd __attribute__ ((unused)), int argc,
+		    char **args)
+{
+  if (argc == 0)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected"));
+
+  FUNC_NAME (args[0], argc == 1 ? 0 : args[1], 0, (args + 2),
+	     argc > 2 ? argc - 2 : 0);
+
+  return grub_errno;
+}
+
+static grub_command_t cmd;
+
+#ifdef DO_SEARCH_FILE
+GRUB_MOD_INIT(search_fs_file)
+#elif defined (DO_SEARCH_FS_UUID)
+GRUB_MOD_INIT(search_fs_uuid)
+#else
+GRUB_MOD_INIT(search_label)
+#endif
+{
+  cmd =
+    grub_register_command (COMMAND_NAME, grub_cmd_do_search,
+			   N_("NAME [VARIABLE] [HINTS]"),
+			   HELP_MESSAGE);
+}
+
+#ifdef DO_SEARCH_FILE
+GRUB_MOD_FINI(search_fs_file)
+#elif defined (DO_SEARCH_FS_UUID)
+GRUB_MOD_FINI(search_fs_uuid)
+#else
+GRUB_MOD_FINI(search_label)
+#endif
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/search_file.c b/grub-core/commands/search_file.c
new file mode 100644
index 0000000..cc2a5f9
--- /dev/null
+++ b/grub-core/commands/search_file.c
@@ -0,0 +1,5 @@
+#define DO_SEARCH_FILE 1
+#define FUNC_NAME grub_search_fs_file
+#define COMMAND_NAME "search.file"
+#define HELP_MESSAGE N_("Search devices by file. If VARIABLE is specified, the first device found is set to a variable.")
+#include "search.c"
diff --git a/grub-core/commands/search_label.c b/grub-core/commands/search_label.c
new file mode 100644
index 0000000..12e7c18
--- /dev/null
+++ b/grub-core/commands/search_label.c
@@ -0,0 +1,5 @@
+#define DO_SEARCH_FS_LABEL 1
+#define FUNC_NAME grub_search_label
+#define COMMAND_NAME "search.fs_label"
+#define HELP_MESSAGE N_("Search devices by label. If VARIABLE is specified, the first device found is set to a variable.")
+#include "search.c"
diff --git a/grub-core/commands/search_uuid.c b/grub-core/commands/search_uuid.c
new file mode 100644
index 0000000..541bcf5
--- /dev/null
+++ b/grub-core/commands/search_uuid.c
@@ -0,0 +1,5 @@
+#define DO_SEARCH_FS_UUID 1
+#define FUNC_NAME grub_search_fs_uuid
+#define COMMAND_NAME "search.fs_uuid"
+#define HELP_MESSAGE N_("Search devices by UUID. If VARIABLE is specified, the first device found is set to a variable.")
+#include "search.c"
diff --git a/grub-core/commands/search_wrap.c b/grub-core/commands/search_wrap.c
new file mode 100644
index 0000000..47fc8eb
--- /dev/null
+++ b/grub-core/commands/search_wrap.c
@@ -0,0 +1,220 @@
+/* search.c - search devices based on a file or a filesystem label */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2005,2007,2008,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/err.h>
+#include <grub/dl.h>
+#include <grub/env.h>
+#include <grub/extcmd.h>
+#include <grub/search.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const struct grub_arg_option options[] =
+  {
+    {"file",		'f', 0, N_("Search devices by a file."), 0, 0},
+    {"label",		'l', 0, N_("Search devices by a filesystem label."),
+     0, 0},
+    {"fs-uuid",		'u', 0, N_("Search devices by a filesystem UUID."),
+     0, 0},
+    {"set",		's', GRUB_ARG_OPTION_OPTIONAL,
+     N_("Set a variable to the first device found."), N_("VARNAME"),
+     ARG_TYPE_STRING},
+    {"no-floppy",	'n', 0, N_("Do not probe any floppy drive."), 0, 0},
+    {"hint",	        'h', GRUB_ARG_OPTION_REPEATABLE,
+     N_("First try the device HINT. If HINT ends in comma, "
+	"also try subpartitions"), N_("HINT"), ARG_TYPE_STRING},
+    {"hint-ieee1275",   0, GRUB_ARG_OPTION_REPEATABLE,
+     N_("First try the device HINT if currently running on IEEE1275. "
+	"If HINT ends in comma, also try subpartitions"),
+     N_("HINT"), ARG_TYPE_STRING},
+    {"hint-bios",   0, GRUB_ARG_OPTION_REPEATABLE,
+     N_("First try the device HINT if currently running on BIOS. "
+	"If HINT ends in comma, also try subpartitions"),
+     N_("HINT"), ARG_TYPE_STRING},
+    {"hint-baremetal",   0, GRUB_ARG_OPTION_REPEATABLE,
+     N_("First try the device HINT if direct hardware access is supported. "
+	"If HINT ends in comma, also try subpartitions"),
+     N_("HINT"), ARG_TYPE_STRING},
+    {"hint-efi",   0, GRUB_ARG_OPTION_REPEATABLE,
+     N_("First try the device HINT if currently running on EFI. "
+	"If HINT ends in comma, also try subpartitions"),
+     N_("HINT"), ARG_TYPE_STRING},
+    {"hint-arc",   0, GRUB_ARG_OPTION_REPEATABLE,
+     N_("First try the device HINT if currently running on ARC."
+	" If HINT ends in comma, also try subpartitions"),
+     N_("HINT"), ARG_TYPE_STRING},
+    {0, 0, 0, 0, 0, 0}
+  };
+
+enum options
+  {
+    SEARCH_FILE,
+    SEARCH_LABEL,
+    SEARCH_FS_UUID,
+    SEARCH_SET,
+    SEARCH_NO_FLOPPY,
+    SEARCH_HINT,
+    SEARCH_HINT_IEEE1275,
+    SEARCH_HINT_BIOS,
+    SEARCH_HINT_BAREMETAL,
+    SEARCH_HINT_EFI,
+    SEARCH_HINT_ARC,
+ };
+
+static grub_err_t
+grub_cmd_search (grub_extcmd_context_t ctxt, int argc, char **args)
+{
+  struct grub_arg_list *state = ctxt->state;
+  const char *var = 0;
+  const char *id = 0;
+  int i = 0, j = 0, nhints = 0;
+  char **hints = NULL;
+
+  if (state[SEARCH_HINT].set)
+    for (i = 0; state[SEARCH_HINT].args[i]; i++)
+      nhints++;
+
+#ifdef GRUB_MACHINE_IEEE1275
+  if (state[SEARCH_HINT_IEEE1275].set)
+    for (i = 0; state[SEARCH_HINT_IEEE1275].args[i]; i++)
+      nhints++;
+#endif
+
+#ifdef GRUB_MACHINE_EFI
+  if (state[SEARCH_HINT_EFI].set)
+    for (i = 0; state[SEARCH_HINT_EFI].args[i]; i++)
+      nhints++;
+#endif
+
+#ifdef GRUB_MACHINE_PCBIOS
+  if (state[SEARCH_HINT_BIOS].set)
+    for (i = 0; state[SEARCH_HINT_BIOS].args[i]; i++)
+      nhints++;
+#endif
+
+#ifdef GRUB_MACHINE_ARC
+  if (state[SEARCH_HINT_ARC].set)
+    for (i = 0; state[SEARCH_HINT_ARC].args[i]; i++)
+      nhints++;
+#endif
+
+  if (state[SEARCH_HINT_BAREMETAL].set)
+    for (i = 0; state[SEARCH_HINT_BAREMETAL].args[i]; i++)
+      nhints++;
+
+  hints = grub_calloc (nhints, sizeof (hints[0]));
+  if (!hints)
+    return grub_errno;
+  j = 0;
+
+  if (state[SEARCH_HINT].set)
+    for (i = 0; state[SEARCH_HINT].args[i]; i++)
+      hints[j++] = state[SEARCH_HINT].args[i];
+
+#ifdef GRUB_MACHINE_IEEE1275
+  if (state[SEARCH_HINT_IEEE1275].set)
+    for (i = 0; state[SEARCH_HINT_IEEE1275].args[i]; i++)
+      hints[j++] = state[SEARCH_HINT_IEEE1275].args[i];
+#endif
+
+#ifdef GRUB_MACHINE_EFI
+  if (state[SEARCH_HINT_EFI].set)
+    for (i = 0; state[SEARCH_HINT_EFI].args[i]; i++)
+      hints[j++] = state[SEARCH_HINT_EFI].args[i];
+#endif
+
+#ifdef GRUB_MACHINE_ARC
+  if (state[SEARCH_HINT_ARC].set)
+    for (i = 0; state[SEARCH_HINT_ARC].args[i]; i++)
+      hints[j++] = state[SEARCH_HINT_ARC].args[i];
+#endif
+
+#ifdef GRUB_MACHINE_PCBIOS
+  if (state[SEARCH_HINT_BIOS].set)
+    for (i = 0; state[SEARCH_HINT_BIOS].args[i]; i++)
+      hints[j++] = state[SEARCH_HINT_BIOS].args[i];
+#endif
+
+  if (state[SEARCH_HINT_BAREMETAL].set)
+    for (i = 0; state[SEARCH_HINT_BAREMETAL].args[i]; i++)
+      hints[j++] = state[SEARCH_HINT_BAREMETAL].args[i];
+
+  /* Skip hints for future platforms.  */
+  for (j = 0; j < argc; j++)
+    if (grub_memcmp (args[j], "--hint-", sizeof ("--hint-") - 1) != 0)
+      break;
+
+  if (state[SEARCH_SET].set)
+    var = state[SEARCH_SET].arg ? state[SEARCH_SET].arg : "root";
+
+  if (argc != j)
+    id = args[j];
+  else if (state[SEARCH_SET].set && state[SEARCH_SET].arg)
+    {
+      id = state[SEARCH_SET].arg;
+      var = "root";
+    }
+  else
+    {
+      grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected"));
+      goto out;
+    }
+
+  if (state[SEARCH_LABEL].set)
+    grub_search_label (id, var, state[SEARCH_NO_FLOPPY].set, 
+		       hints, nhints);
+  else if (state[SEARCH_FS_UUID].set)
+    grub_search_fs_uuid (id, var, state[SEARCH_NO_FLOPPY].set,
+			 hints, nhints);
+  else if (state[SEARCH_FILE].set)
+    grub_search_fs_file (id, var, state[SEARCH_NO_FLOPPY].set, 
+			 hints, nhints);
+  else
+    grub_error (GRUB_ERR_INVALID_COMMAND, "unspecified search type");
+
+out:
+  grub_free (hints);
+  return grub_errno;
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT(search)
+{
+  cmd =
+    grub_register_extcmd ("search", grub_cmd_search,
+			  GRUB_COMMAND_FLAG_EXTRACTOR | GRUB_COMMAND_ACCEPT_DASH,
+			  N_("[-f|-l|-u|-s|-n] [--hint HINT [--hint HINT] ...]"
+			     " NAME"),
+			  N_("Search devices by file, filesystem label"
+			     " or filesystem UUID."
+			     " If --set is specified, the first device found is"
+			     " set to a variable. If no variable name is"
+			     " specified, `root' is used."),
+			  options);
+}
+
+GRUB_MOD_FINI(search)
+{
+  grub_unregister_extcmd (cmd);
+}
diff --git a/grub-core/commands/setpci.c b/grub-core/commands/setpci.c
new file mode 100644
index 0000000..8a0c91f
--- /dev/null
+++ b/grub-core/commands/setpci.c
@@ -0,0 +1,340 @@
+/* lspci.c - List PCI devices.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2008, 2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/pci.h>
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/extcmd.h>
+#include <grub/env.h>
+#include <grub/mm.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+struct pci_register
+{
+  const char *name;
+  grub_uint16_t addr;
+  unsigned size;
+};
+
+static struct pci_register pci_registers[] =
+  {
+    {"VENDOR_ID",       GRUB_PCI_REG_VENDOR      , 2},
+    {"DEVICE_ID",       GRUB_PCI_REG_DEVICE      , 2},
+    {"COMMAND",         GRUB_PCI_REG_COMMAND     , 2},
+    {"STATUS",          GRUB_PCI_REG_STATUS      , 2},
+    {"REVISION",        GRUB_PCI_REG_REVISION    , 1},
+    {"CLASS_PROG",      GRUB_PCI_REG_CLASS + 1   , 1},
+    {"CLASS_DEVICE",    GRUB_PCI_REG_CLASS + 2   , 2},
+    {"CACHE_LINE_SIZE", GRUB_PCI_REG_CACHELINE   , 1},
+    {"LATENCY_TIMER",   GRUB_PCI_REG_LAT_TIMER   , 1},
+    {"HEADER_TYPE",     GRUB_PCI_REG_HEADER_TYPE , 1},
+    {"BIST",            GRUB_PCI_REG_BIST        , 1},
+    {"BASE_ADDRESS_0",  GRUB_PCI_REG_ADDRESS_REG0, 4},
+    {"BASE_ADDRESS_1",  GRUB_PCI_REG_ADDRESS_REG1, 4},
+    {"BASE_ADDRESS_2",  GRUB_PCI_REG_ADDRESS_REG2, 4},
+    {"BASE_ADDRESS_3",  GRUB_PCI_REG_ADDRESS_REG3, 4},
+    {"BASE_ADDRESS_4",  GRUB_PCI_REG_ADDRESS_REG4, 4},
+    {"BASE_ADDRESS_5",  GRUB_PCI_REG_ADDRESS_REG5, 4},
+    {"CARDBUS_CIS",     GRUB_PCI_REG_CIS_POINTER , 4},
+    {"SUBVENDOR_ID",    GRUB_PCI_REG_SUBVENDOR   , 2},
+    {"SUBSYSTEM_ID",    GRUB_PCI_REG_SUBSYSTEM   , 2},
+    {"ROM_ADDRESS",     GRUB_PCI_REG_ROM_ADDRESS , 4},
+    {"CAP_POINTER",     GRUB_PCI_REG_CAP_POINTER , 1},
+    {"INTERRUPT_LINE",  GRUB_PCI_REG_IRQ_LINE    , 1},
+    {"INTERRUPT_PIN",   GRUB_PCI_REG_IRQ_PIN     , 1},
+    {"MIN_GNT",         GRUB_PCI_REG_MIN_GNT     , 1},
+    {"MAX_LAT",         GRUB_PCI_REG_MIN_GNT     , 1},
+  };
+
+static const struct grub_arg_option options[] =
+  {
+    {0, 'd', 0, N_("Select device by vendor and device IDs."),
+     N_("[vendor]:[device]"), ARG_TYPE_STRING},
+    {0, 's', 0, N_("Select device by its position on the bus."),
+     N_("[bus]:[slot][.func]"), ARG_TYPE_STRING},
+    {0, 'v', 0, N_("Save read value into variable VARNAME."),
+     N_("VARNAME"), ARG_TYPE_STRING},
+    {0, 0, 0, 0, 0, 0}
+  };
+
+static grub_uint32_t pciid_check_mask, pciid_check_value;
+static int bus, device, function;
+static int check_bus, check_device, check_function;
+static grub_uint32_t write_mask, regwrite;
+static int regsize;
+static grub_uint16_t regaddr;
+static const char *varname;
+
+static int
+grub_setpci_iter (grub_pci_device_t dev, grub_pci_id_t pciid,
+		  void *data __attribute__ ((unused)))
+{
+  grub_uint32_t regval = 0;
+  grub_pci_address_t addr;
+
+  if ((pciid & pciid_check_mask) != pciid_check_value)
+    return 0;
+
+  if (check_bus && grub_pci_get_bus (dev) != bus)
+    return 0;
+
+  if (check_device && grub_pci_get_device (dev) != device)
+    return 0;
+
+  if (check_function && grub_pci_get_function (dev) != function)
+    return 0;
+
+  addr = grub_pci_make_address (dev, regaddr);
+
+  switch (regsize)
+    {
+    case 1:
+      regval = grub_pci_read_byte (addr);
+      break;
+
+    case 2:
+      regval = grub_pci_read_word (addr);
+      break;
+
+    case 4:
+      regval = grub_pci_read (addr);
+      break;
+    }
+
+  if (varname)
+    {
+      char buf[sizeof ("XXXXXXXX")];
+      grub_snprintf (buf, sizeof (buf), "%x", regval);
+      grub_env_set (varname, buf);
+      return 1;
+    }
+
+  if (!write_mask)
+    {
+      grub_printf (_("Register %x of %x:%02x.%x is %x\n"), regaddr,
+		   grub_pci_get_bus (dev),
+		   grub_pci_get_device (dev),
+		   grub_pci_get_function (dev),
+		   regval);
+      return 0;
+    }
+
+  regval = (regval & ~write_mask) | regwrite;
+
+  switch (regsize)
+    {
+    case 1:
+      grub_pci_write_byte (addr, regval);
+      break;
+
+    case 2:
+      grub_pci_write_word (addr, regval);
+      break;
+
+    case 4:
+      grub_pci_write (addr, regval);
+      break;
+    }
+
+  return 0;
+}
+
+static grub_err_t
+grub_cmd_setpci (grub_extcmd_context_t ctxt, int argc, char **argv)
+{
+  const char *ptr;
+  unsigned i;
+
+  pciid_check_value = 0;
+  pciid_check_mask = 0;
+
+  if (ctxt->state[0].set)
+    {
+      ptr = ctxt->state[0].arg;
+      pciid_check_value |= (grub_strtoul (ptr, &ptr, 16) & 0xffff);
+      if (grub_errno == GRUB_ERR_BAD_NUMBER)
+	{
+	  grub_errno = GRUB_ERR_NONE;
+	  ptr = ctxt->state[0].arg;
+	}
+      else
+	pciid_check_mask |= 0xffff;
+      if (grub_errno)
+	return grub_errno;
+      if (*ptr != ':')
+	return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("missing `%c' symbol"), ':');
+      ptr++;
+      pciid_check_value |= (grub_strtoul (ptr, &ptr, 16) & 0xffff) << 16;
+      if (grub_errno == GRUB_ERR_BAD_NUMBER)
+	grub_errno = GRUB_ERR_NONE;
+      else
+	pciid_check_mask |= 0xffff0000;
+    }
+
+  pciid_check_value &= pciid_check_mask;
+
+  check_bus = check_device = check_function = 0;
+
+  if (ctxt->state[1].set)
+    {
+      const char *optr;
+
+      ptr = ctxt->state[1].arg;
+      optr = ptr;
+      bus = grub_strtoul (ptr, &ptr, 16);
+      if (grub_errno == GRUB_ERR_BAD_NUMBER)
+	{
+	  grub_errno = GRUB_ERR_NONE;
+	  ptr = optr;
+	}
+      else
+	check_bus = 1;
+      if (grub_errno)
+	return grub_errno;
+      if (*ptr != ':')
+	return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("missing `%c' symbol"), ':');
+      ptr++;
+      optr = ptr;
+      device = grub_strtoul (ptr, &ptr, 16);
+      if (grub_errno == GRUB_ERR_BAD_NUMBER)
+	{
+	  grub_errno = GRUB_ERR_NONE;
+	  ptr = optr;
+	}
+      else
+	check_device = 1;
+      if (*ptr == '.')
+	{
+	  ptr++;
+	  function = grub_strtoul (ptr, &ptr, 16);
+	  if (grub_errno)
+	    return grub_errno;
+	  check_function = 1;
+	}
+    }
+
+  if (ctxt->state[2].set)
+    varname = ctxt->state[2].arg;
+  else
+    varname = NULL;
+
+  write_mask = 0;
+
+  if (argc != 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected"));
+
+  ptr = argv[0];
+
+  for (i = 0; i < ARRAY_SIZE (pci_registers); i++)
+    {
+      if (grub_strncmp (ptr, pci_registers[i].name,
+			grub_strlen (pci_registers[i].name)) == 0)
+	break;
+    }
+  if (i == ARRAY_SIZE (pci_registers))
+    {
+      regsize = 0;
+      regaddr = grub_strtoul (ptr, &ptr, 16);
+      if (grub_errno)
+	return grub_error (GRUB_ERR_BAD_ARGUMENT, "unknown register");
+    }
+  else
+    {
+      regaddr = pci_registers[i].addr;
+      regsize = pci_registers[i].size;
+      ptr += grub_strlen (pci_registers[i].name);
+    }
+
+  if (grub_errno)
+    return grub_errno;
+
+  if (*ptr == '+')
+    {
+      ptr++;
+      regaddr += grub_strtoul (ptr, &ptr, 16);
+      if (grub_errno)
+	return grub_errno;
+    }
+
+  if (grub_memcmp (ptr, ".L", sizeof (".L") - 1) == 0
+      || grub_memcmp (ptr, ".l", sizeof (".l") - 1) == 0)
+    {
+      regsize = 4;
+      ptr += sizeof (".l") - 1;
+    }
+  else if (grub_memcmp (ptr, ".W", sizeof (".W") - 1) == 0
+      || grub_memcmp (ptr, ".w", sizeof (".w") - 1) == 0)
+    {
+      regsize = 2;
+      ptr += sizeof (".w") - 1;
+    }
+  else if (grub_memcmp (ptr, ".B", sizeof (".B") - 1) == 0
+      || grub_memcmp (ptr, ".b", sizeof (".b") - 1) == 0)
+    {
+      regsize = 1;
+      ptr += sizeof (".b") - 1;
+    }
+
+  if (!regsize)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT,
+		       "unknown register size");
+
+  write_mask = 0;
+  if (*ptr == '=')
+    {
+      ptr++;
+      regwrite = grub_strtoul (ptr, &ptr, 16);
+      if (grub_errno)
+	return grub_errno;
+      write_mask = 0xffffffff;
+      if (*ptr == ':')
+	{
+	  ptr++;
+	  write_mask = grub_strtoul (ptr, &ptr, 16);
+	  if (grub_errno)
+	    return grub_errno;
+	  write_mask = 0xffffffff;
+	}
+      regwrite &= write_mask;
+    }
+
+  if (write_mask && varname)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT,
+		       "option -v isn't valid for writes");
+
+  grub_pci_iterate (grub_setpci_iter, NULL);
+  return GRUB_ERR_NONE;
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT(setpci)
+{
+  cmd = grub_register_extcmd_lockdown ("setpci", grub_cmd_setpci, 0,
+				       N_("[-s POSITION] [-d DEVICE] [-v VAR] "
+					  "REGISTER[=VALUE[:MASK]]"),
+				       N_("Manipulate PCI devices."), options);
+}
+
+GRUB_MOD_FINI(setpci)
+{
+  grub_unregister_extcmd (cmd);
+}
diff --git a/grub-core/commands/sleep.c b/grub-core/commands/sleep.c
new file mode 100644
index 0000000..a1370b7
--- /dev/null
+++ b/grub-core/commands/sleep.c
@@ -0,0 +1,117 @@
+/* sleep.c - Command to wait a specified number of seconds.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2006,2007,2008  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/term.h>
+#include <grub/time.h>
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/extcmd.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const struct grub_arg_option options[] =
+  {
+    {"verbose", 'v', 0, N_("Verbose countdown."), 0, 0},
+    {"interruptible", 'i', 0, N_("Allow to interrupt with ESC."), 0, 0},
+    {0, 0, 0, 0, 0, 0}
+  };
+
+static struct grub_term_coordinate *pos;
+
+static void
+do_print (int n)
+{
+  grub_term_restore_pos (pos);
+  /* NOTE: Do not remove the trailing space characters.
+     They are required to clear the line.  */
+  grub_printf ("%d    ", n);
+  grub_refresh ();
+}
+
+/* Based on grub_millisleep() from kern/generic/millisleep.c.  */
+static int
+grub_interruptible_millisleep (grub_uint32_t ms)
+{
+  grub_uint64_t start;
+
+  start = grub_get_time_ms ();
+
+  while (grub_get_time_ms () - start < ms)
+    if (grub_key_is_interrupt (grub_getkey_noblock ()))
+      return 1;
+
+  return 0;
+}
+
+static grub_err_t
+grub_cmd_sleep (grub_extcmd_context_t ctxt, int argc, char **args)
+{
+  struct grub_arg_list *state = ctxt->state;
+  int n;
+
+  if (argc != 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected"));
+
+  n = grub_strtoul (args[0], 0, 10);
+
+  if (n == 0)
+    {
+      /* Either `0' or broken input.  */
+      return 0;
+    }
+
+  grub_refresh ();
+
+  pos = grub_term_save_pos ();
+
+  for (; n; n--)
+    {
+      if (state[0].set)
+	do_print (n);
+
+      if (state[1].set)
+	{
+	  if (grub_interruptible_millisleep (1000))
+	    return 1;
+	}
+      else
+	grub_millisleep (1000);
+    }
+  if (state[0].set)
+    do_print (0);
+
+  return 0;
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT(sleep)
+{
+  cmd = grub_register_extcmd ("sleep", grub_cmd_sleep, 0,
+			      N_("NUMBER_OF_SECONDS"),
+			      N_("Wait for a specified number of seconds."),
+			      options);
+}
+
+GRUB_MOD_FINI(sleep)
+{
+  grub_unregister_extcmd (cmd);
+}
diff --git a/grub-core/commands/smbios.c b/grub-core/commands/smbios.c
new file mode 100644
index 0000000..1a9086d
--- /dev/null
+++ b/grub-core/commands/smbios.c
@@ -0,0 +1,398 @@
+/* smbios.c - retrieve smbios information. */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2019  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/env.h>
+#include <grub/extcmd.h>
+#include <grub/i18n.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/smbios.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+/* Abstract useful values found in either the SMBIOS3 or SMBIOS EPS. */
+static struct {
+  grub_addr_t start;
+  grub_addr_t end;
+  grub_uint16_t structures;
+} table_desc;
+
+static grub_extcmd_t cmd;
+
+/* Locate the SMBIOS entry point structure depending on the hardware. */
+struct grub_smbios_eps *
+grub_smbios_get_eps (void)
+{
+  static struct grub_smbios_eps *eps = NULL;
+
+  if (eps != NULL)
+    return eps;
+
+  eps = grub_machine_smbios_get_eps ();
+
+  return eps;
+}
+
+/* Locate the SMBIOS3 entry point structure depending on the hardware. */
+static struct grub_smbios_eps3 *
+grub_smbios_get_eps3 (void)
+{
+  static struct grub_smbios_eps3 *eps = NULL;
+
+  if (eps != NULL)
+    return eps;
+
+  eps = grub_machine_smbios_get_eps3 ();
+
+  return eps;
+}
+
+static char *
+linux_string (const char *value)
+{
+  char *out = grub_malloc( grub_strlen (value) + 1);
+  const char *src = value;
+  char *dst = out;
+
+  for (; *src; src++)
+    if (*src > ' ' && *src < 127 && *src != ':')
+      *dst++ = *src;
+
+  *dst = 0;
+  return out;
+}
+
+/*
+ * These functions convert values from the various SMBIOS structure field types
+ * into a string formatted to be returned to the user.  They expect that the
+ * structure and offset were already validated.  When the requested data is
+ * successfully retrieved and formatted, the pointer to the string is returned;
+ * otherwise, NULL is returned on failure.  Don't free the result.
+ */
+
+static const char *
+grub_smbios_format_byte (const grub_uint8_t *structure, grub_uint8_t offset)
+{
+  static char buffer[sizeof ("255")];
+
+  grub_snprintf (buffer, sizeof (buffer), "%u", structure[offset]);
+
+  return (const char *)buffer;
+}
+
+static const char *
+grub_smbios_format_word (const grub_uint8_t *structure, grub_uint8_t offset)
+{
+  static char buffer[sizeof ("65535")];
+
+  grub_uint16_t value = grub_get_unaligned16 (structure + offset);
+  grub_snprintf (buffer, sizeof (buffer), "%u", value);
+
+  return (const char *)buffer;
+}
+
+static const char *
+grub_smbios_format_dword (const grub_uint8_t *structure, grub_uint8_t offset)
+{
+  static char buffer[sizeof ("4294967295")];
+
+  grub_uint32_t value = grub_get_unaligned32 (structure + offset);
+  grub_snprintf (buffer, sizeof (buffer), "%" PRIuGRUB_UINT32_T, value);
+
+  return (const char *)buffer;
+}
+
+static const char *
+grub_smbios_format_qword (const grub_uint8_t *structure, grub_uint8_t offset)
+{
+  static char buffer[sizeof ("18446744073709551615")];
+
+  grub_uint64_t value = grub_get_unaligned64 (structure + offset);
+  grub_snprintf (buffer, sizeof (buffer), "%" PRIuGRUB_UINT64_T, value);
+
+  return (const char *)buffer;
+}
+
+static const char *
+grub_smbios_get_string (const grub_uint8_t *structure, grub_uint8_t offset)
+{
+  const grub_uint8_t *ptr = structure + structure[1];
+  const grub_uint8_t *table_end = (const grub_uint8_t *)table_desc.end;
+  const grub_uint8_t referenced_string_number = structure[offset];
+  grub_uint8_t i;
+
+  /* A string referenced with zero is interpreted as unset. */
+  if (referenced_string_number == 0)
+    return NULL;
+
+  /* Search the string set. */
+  for (i = 1; *ptr != 0 && ptr < table_end; i++)
+    if (i == referenced_string_number)
+      {
+        const char *str = (const char *)ptr;
+        while (*ptr++ != 0)
+          if (ptr >= table_end)
+            return NULL; /* The string isn't terminated. */
+        return str;
+      }
+    else
+      while (*ptr++ != 0 && ptr < table_end);
+
+  /* The string number is greater than the number of strings in the set. */
+  return NULL;
+}
+
+static const char *
+grub_smbios_format_uuid (const grub_uint8_t *structure, grub_uint8_t offset)
+{
+  static char buffer[sizeof ("ffffffff-ffff-ffff-ffff-ffffffffffff")];
+  const grub_uint8_t *f = structure + offset; /* little-endian fields */
+  const grub_uint8_t *g = f + 8; /* byte-by-byte fields */
+
+  grub_snprintf (buffer, sizeof (buffer),
+                 "%02x%02x%02x%02x-%02x%02x-%02x%02x-"
+                 "%02x%02x-%02x%02x%02x%02x%02x%02x",
+                 f[3], f[2], f[1], f[0], f[5], f[4], f[7], f[6],
+                 g[0], g[1], g[2], g[3], g[4], g[5], g[6], g[7]);
+
+  return (const char *)buffer;
+}
+
+/* List the field formatting functions and the number of bytes they need. */
+static const struct {
+  const char *(*format) (const grub_uint8_t *structure, grub_uint8_t offset);
+  grub_uint8_t field_length;
+} field_extractors[] = {
+  {grub_smbios_format_byte, 1},
+  {grub_smbios_format_word, 2},
+  {grub_smbios_format_dword, 4},
+  {grub_smbios_format_qword, 8},
+  {grub_smbios_get_string, 1},
+  {grub_smbios_format_uuid, 16}
+};
+
+/* List command options, with structure field getters ordered as above. */
+#define FIRST_GETTER_OPT (3)
+#define SETTER_OPT (FIRST_GETTER_OPT + ARRAY_SIZE(field_extractors))
+#define LINUX_OPT (FIRST_GETTER_OPT + ARRAY_SIZE(field_extractors) + 1)
+
+static const struct grub_arg_option options[] = {
+  {"type",       't', 0, N_("Match structures with the given type."),
+                         N_("type"), ARG_TYPE_INT},
+  {"handle",     'h', 0, N_("Match structures with the given handle."),
+                         N_("handle"), ARG_TYPE_INT},
+  {"match",      'm', 0, N_("Select a structure when several match."),
+                         N_("match"), ARG_TYPE_INT},
+  {"get-byte",   'b', 0, N_("Get the byte's value at the given offset."),
+                         N_("offset"), ARG_TYPE_INT},
+  {"get-word",   'w', 0, N_("Get two bytes' value at the given offset."),
+                         N_("offset"), ARG_TYPE_INT},
+  {"get-dword",  'd', 0, N_("Get four bytes' value at the given offset."),
+                         N_("offset"), ARG_TYPE_INT},
+  {"get-qword",  'q', 0, N_("Get eight bytes' value at the given offset."),
+                         N_("offset"), ARG_TYPE_INT},
+  {"get-string", 's', 0, N_("Get the string specified at the given offset."),
+                         N_("offset"), ARG_TYPE_INT},
+  {"get-uuid",   'u', 0, N_("Get the UUID's value at the given offset."),
+                         N_("offset"), ARG_TYPE_INT},
+  {"set",       '\0', 0, N_("Store the value in the given variable name."),
+                         N_("variable"), ARG_TYPE_STRING},
+  {"linux",     '\0', 0, N_("Filter the result like linux does."),
+                         N_("variable"), ARG_TYPE_NONE},
+  {0, 0, 0, 0, 0, 0}
+};
+
+/*
+ * Return a matching SMBIOS structure.
+ *
+ * This method can use up to three criteria for selecting a structure:
+ *   - The "type" field                  (use -1 to ignore)
+ *   - The "handle" field                (use -1 to ignore)
+ *   - Which to return if several match  (use  0 to ignore)
+ *
+ * The return value is a pointer to the first matching structure.  If no
+ * structures match the given parameters, NULL is returned.
+ */
+static const grub_uint8_t *
+grub_smbios_match_structure (const grub_int16_t type,
+                             const grub_int32_t handle,
+                             const grub_uint16_t match)
+{
+  const grub_uint8_t *ptr = (const grub_uint8_t *)table_desc.start;
+  const grub_uint8_t *table_end = (const grub_uint8_t *)table_desc.end;
+  grub_uint16_t structures = table_desc.structures;
+  grub_uint16_t structure_count = 0;
+  grub_uint16_t matches = 0;
+
+  while (ptr < table_end
+         && ptr[1] >= 4 /* Valid structures include the 4-byte header. */
+         && (structure_count++ < structures || structures == 0))
+    {
+      grub_uint16_t structure_handle = grub_get_unaligned16 (ptr + 2);
+      grub_uint8_t structure_type = ptr[0];
+
+      if ((handle < 0 || handle == structure_handle)
+          && (type < 0 || type == structure_type)
+          && (match == 0 || match == ++matches))
+        return ptr;
+      else
+        {
+          ptr += ptr[1];
+          while ((*ptr++ != 0 || *ptr++ != 0) && ptr < table_end);
+        }
+
+      if (structure_type == GRUB_SMBIOS_TYPE_END_OF_TABLE)
+        break;
+    }
+
+  return NULL;
+}
+
+static grub_err_t
+grub_cmd_smbios (grub_extcmd_context_t ctxt,
+                 int argc __attribute__ ((unused)),
+                 char **argv __attribute__ ((unused)))
+{
+  struct grub_arg_list *state = ctxt->state;
+
+  grub_int16_t type = -1;
+  grub_int32_t handle = -1;
+  grub_uint16_t match = 0;
+  grub_uint8_t offset = 0;
+
+  const grub_uint8_t *structure;
+  const char *value;
+  char *modified_value = NULL;
+  grub_int32_t option;
+  grub_int8_t field_type = -1;
+  grub_uint8_t i;
+
+  if (table_desc.start == 0)
+    return grub_error (GRUB_ERR_IO,
+                       N_("the SMBIOS entry point structure was not found"));
+
+  /* Read the given filtering options. */
+  if (state[0].set)
+    {
+      option = grub_strtol (state[0].arg, NULL, 0);
+      if (option < 0 || option > 255)
+        return grub_error (GRUB_ERR_BAD_ARGUMENT,
+                           N_("the type must be between 0 and 255"));
+      type = (grub_int16_t)option;
+    }
+  if (state[1].set)
+    {
+      option = grub_strtol (state[1].arg, NULL, 0);
+      if (option < 0 || option > 65535)
+        return grub_error (GRUB_ERR_BAD_ARGUMENT,
+                           N_("the handle must be between 0 and 65535"));
+      handle = (grub_int32_t)option;
+    }
+  if (state[2].set)
+    {
+      option = grub_strtol (state[2].arg, NULL, 0);
+      if (option <= 0 || option > 65535)
+        return grub_error (GRUB_ERR_BAD_ARGUMENT,
+                           N_("the match must be a positive integer"));
+      match = (grub_uint16_t)option;
+    }
+
+  /* Determine the data type of the structure field to retrieve. */
+  for (i = 0; i < ARRAY_SIZE(field_extractors); i++)
+    if (state[FIRST_GETTER_OPT + i].set)
+      {
+        if (field_type >= 0)
+          return grub_error (GRUB_ERR_BAD_ARGUMENT,
+                             N_("only one --get option is usable at a time"));
+        field_type = i;
+      }
+
+  /* Require a choice of a structure field to return. */
+  if (field_type < 0)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT,
+                       N_("one of the --get options is required"));
+
+  /* Locate a matching SMBIOS structure. */
+  structure = grub_smbios_match_structure (type, handle, match);
+  if (structure == NULL)
+    return grub_error (GRUB_ERR_IO,
+                       N_("no structure matched the given options"));
+
+  /* Ensure the requested byte offset is inside the structure. */
+  option = grub_strtol (state[FIRST_GETTER_OPT + field_type].arg, NULL, 0);
+  if (option < 0 || option >= structure[1])
+    return grub_error (GRUB_ERR_OUT_OF_RANGE,
+                       N_("the given offset is outside the structure"));
+
+  /* Ensure the requested data type at the offset is inside the structure. */
+  offset = (grub_uint8_t)option;
+  if (offset + field_extractors[field_type].field_length > structure[1])
+    return grub_error (GRUB_ERR_OUT_OF_RANGE,
+                       N_("the field ends outside the structure"));
+
+  /* Format the requested structure field into a readable string. */
+  value = field_extractors[field_type].format (structure, offset);
+  if (value == NULL)
+    return grub_error (GRUB_ERR_IO,
+                       N_("failed to retrieve the structure field"));
+
+  if (state[LINUX_OPT].set)
+    value = modified_value = linux_string (value);
+
+  /* Store or print the formatted value. */
+  if (state[SETTER_OPT].set)
+    grub_env_set (state[SETTER_OPT].arg, value);
+  else
+    grub_printf ("%s\n", value);
+
+  grub_free(modified_value);
+
+  return GRUB_ERR_NONE;
+}
+
+GRUB_MOD_INIT(smbios)
+{
+  struct grub_smbios_eps3 *eps3;
+  struct grub_smbios_eps *eps;
+
+  if ((eps3 = grub_smbios_get_eps3 ()))
+    {
+      table_desc.start = (grub_addr_t)eps3->table_address;
+      table_desc.end = table_desc.start + eps3->maximum_table_length;
+      table_desc.structures = 0; /* SMBIOS3 drops the structure count. */
+    }
+  else if ((eps = grub_smbios_get_eps ()))
+    {
+      table_desc.start = (grub_addr_t)eps->intermediate.table_address;
+      table_desc.end = table_desc.start + eps->intermediate.table_length;
+      table_desc.structures = eps->intermediate.structures;
+    }
+
+  cmd = grub_register_extcmd ("smbios", grub_cmd_smbios, 0,
+                              N_("[-t type] [-h handle] [-m match] "
+                                 "(-b|-w|-d|-q|-s|-u) offset "
+                                 "[--set variable]"),
+                              N_("Retrieve SMBIOS information."), options);
+}
+
+GRUB_MOD_FINI(smbios)
+{
+  grub_unregister_extcmd (cmd);
+}
diff --git a/grub-core/commands/syslinuxcfg.c b/grub-core/commands/syslinuxcfg.c
new file mode 100644
index 0000000..7be28fa
--- /dev/null
+++ b/grub-core/commands/syslinuxcfg.c
@@ -0,0 +1,217 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2013  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/extcmd.h>
+#include <grub/mm.h>
+#include <grub/err.h>
+#include <grub/dl.h>
+#include <grub/file.h>
+#include <grub/normal.h>
+#include <grub/script_sh.h>
+#include <grub/i18n.h>
+#include <grub/term.h>
+#include <grub/syslinux_parse.h>
+#include <grub/crypto.h>
+#include <grub/auth.h>
+#include <grub/disk.h>
+#include <grub/partition.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+/* Helper for syslinux_file.  */
+static grub_err_t
+syslinux_file_getline (char **line, int cont __attribute__ ((unused)),
+		     void *data __attribute__ ((unused)))
+{
+  *line = 0;
+  return GRUB_ERR_NONE;
+}
+
+static const struct grub_arg_option options[] =
+  {
+    {"root",  'r', 0,
+     N_("root directory of the syslinux disk [default=/]."),
+     N_("DIR"), ARG_TYPE_STRING},
+    {"cwd",  'c', 0,
+     N_("current directory of syslinux [default is parent directory of input file]."),
+     N_("DIR"), ARG_TYPE_STRING},
+    {"isolinux",     'i',  0, N_("assume input is an isolinux configuration file."), 0, 0},
+    {"pxelinux",     'p',  0, N_("assume input is a pxelinux configuration file."), 0, 0},
+    {"syslinux",     's',  0, N_("assume input is a syslinux configuration file."), 0, 0},
+    {0, 0, 0, 0, 0, 0}
+  };
+
+enum
+  {
+    OPTION_ROOT,
+    OPTION_CWD,
+    OPTION_ISOLINUX,
+    OPTION_PXELINUX,
+    OPTION_SYSLINUX
+  };
+
+static grub_err_t
+syslinux_file (grub_extcmd_context_t ctxt, const char *filename)
+{
+  char *result;
+  const char *root = ctxt->state[OPTION_ROOT].set ? ctxt->state[OPTION_ROOT].arg : "/";
+  const char *cwd = ctxt->state[OPTION_CWD].set ? ctxt->state[OPTION_CWD].arg : NULL;
+  grub_syslinux_flavour_t flav = GRUB_SYSLINUX_UNKNOWN;
+  char *cwdf = NULL;
+  grub_menu_t menu;
+
+  if (ctxt->state[OPTION_ISOLINUX].set)
+    flav = GRUB_SYSLINUX_ISOLINUX;
+  if (ctxt->state[OPTION_PXELINUX].set)
+    flav = GRUB_SYSLINUX_PXELINUX;
+  if (ctxt->state[OPTION_SYSLINUX].set)
+    flav = GRUB_SYSLINUX_SYSLINUX;
+
+  if (!cwd)
+    {
+      char *p;
+      cwdf = grub_strdup (filename);
+      if (!cwdf)
+	return grub_errno;
+      p = grub_strrchr (cwdf, '/');
+      if (!p)
+	{
+	  grub_free (cwdf);
+	  cwd = "/";
+	  cwdf = NULL;
+	}
+      else
+	{
+	  *p = '\0';
+	  cwd = cwdf;
+	}
+    }
+
+  grub_dprintf ("syslinux",
+		"transforming syslinux config %s, root = %s, cwd = %s\n",
+		filename, root, cwd);
+
+  result = grub_syslinux_config_file (root, root, cwd, cwd, filename, flav);
+  if (!result)
+    return grub_errno;
+
+  grub_dprintf ("syslinux", "syslinux config transformed\n");
+
+  menu = grub_env_get_menu ();
+  if (! menu)
+    {
+      menu = grub_zalloc (sizeof (*menu));
+      if (! menu)
+	{
+	  grub_free (result);
+	  return grub_errno;
+	}
+
+      grub_env_set_menu (menu);
+    }
+
+  grub_normal_parse_line (result, syslinux_file_getline, NULL);
+  grub_print_error ();
+  grub_free (result);
+  grub_free (cwdf);
+
+  return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_cmd_syslinux_source (grub_extcmd_context_t ctxt,
+			  int argc, char **args)
+{
+  int new_env, extractor;
+  grub_err_t ret;
+
+  if (argc != 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+
+  extractor = (ctxt->extcmd->cmd->name[0] == 'e');
+  new_env = (ctxt->extcmd->cmd->name[extractor ? (sizeof ("extract_syslinux_entries_") - 1)
+			     : (sizeof ("syslinux_") - 1)] == 'c');
+
+  if (new_env)
+    grub_cls ();
+
+  if (new_env && !extractor)
+    grub_env_context_open ();
+  if (extractor)
+    grub_env_extractor_open (!new_env);
+
+  ret = syslinux_file (ctxt, args[0]);
+
+  if (new_env)
+    {
+      grub_menu_t menu;
+      menu = grub_env_get_menu ();
+      if (menu && menu->size)
+	grub_show_menu (menu, 1, 0);
+      if (!extractor)
+	grub_env_context_close ();
+    }
+  if (extractor)
+    grub_env_extractor_close (!new_env);
+
+  return ret;
+}
+
+
+static grub_extcmd_t cmd_source, cmd_configfile;
+static grub_extcmd_t cmd_source_extract, cmd_configfile_extract;
+
+GRUB_MOD_INIT(syslinuxcfg)
+{
+  cmd_source
+    = grub_register_extcmd ("syslinux_source",
+			    grub_cmd_syslinux_source, 0,
+			    N_("FILE"),
+			    /* TRANSLATORS: "syslinux config" means
+			       "config as used by syslinux".  */
+			    N_("Execute syslinux config in same context"),
+			    options);
+  cmd_configfile
+    = grub_register_extcmd ("syslinux_configfile",
+			    grub_cmd_syslinux_source, 0,
+			    N_("FILE"),
+			    N_("Execute syslinux config in new context"),
+			    options);
+  cmd_source_extract
+    = grub_register_extcmd ("extract_syslinux_entries_source",
+			    grub_cmd_syslinux_source, 0,
+			    N_("FILE"),
+			    N_("Execute syslinux config in same context taking only menu entries"),
+			    options);
+  cmd_configfile_extract
+    = grub_register_extcmd ("extract_syslinux_entries_configfile",
+			    grub_cmd_syslinux_source, 0,
+			    N_("FILE"),
+			    N_("Execute syslinux config in new context taking only menu entries"),
+			    options);
+}
+
+GRUB_MOD_FINI(syslinuxcfg)
+{
+  grub_unregister_extcmd (cmd_source);
+  grub_unregister_extcmd (cmd_configfile);
+  grub_unregister_extcmd (cmd_source_extract);
+  grub_unregister_extcmd (cmd_configfile_extract);
+}
diff --git a/grub-core/commands/terminal.c b/grub-core/commands/terminal.c
new file mode 100644
index 0000000..37e0ab8
--- /dev/null
+++ b/grub-core/commands/terminal.c
@@ -0,0 +1,285 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2009,2010  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/mm.h>
+#include <grub/dl.h>
+#include <grub/command.h>
+#include <grub/term.h>
+#include <grub/i18n.h>
+#include <grub/misc.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+struct grub_term_autoload *grub_term_input_autoload = NULL;
+struct grub_term_autoload *grub_term_output_autoload = NULL;
+
+struct abstract_terminal
+{
+  struct abstract_terminal *next;
+  struct abstract_terminal *prev;
+  const char *name;
+  grub_err_t (*init) (struct abstract_terminal *term);
+  grub_err_t (*fini) (struct abstract_terminal *term);
+};
+
+static grub_err_t
+handle_command (int argc, char **args, struct abstract_terminal **enabled,
+               struct abstract_terminal **disabled,
+               struct grub_term_autoload *autoloads,
+               const char *active_str,
+               const char *available_str)
+{
+  int i;
+  struct abstract_terminal *term;
+  struct grub_term_autoload *aut;
+
+  if (argc == 0)
+    {
+      grub_puts_ (active_str);
+      for (term = *enabled; term; term = term->next)
+       grub_printf ("%s ", term->name);
+      grub_printf ("\n");
+      grub_puts_ (available_str);
+      for (term = *disabled; term; term = term->next)
+       grub_printf ("%s ", term->name);
+      /* This is quadratic but we don't expect mode than 30 terminal
+        modules ever.  */
+      for (aut = autoloads; aut; aut = aut->next)
+       {
+         for (term = *disabled; term; term = term->next)
+           if (grub_strcmp (term->name, aut->name) == 0
+	       || (aut->name[0] && aut->name[grub_strlen (aut->name) - 1] == '*'
+		   && grub_memcmp (term->name, aut->name,
+				   grub_strlen (aut->name) - 1) == 0))
+             break;
+         if (!term)
+           for (term = *enabled; term; term = term->next)
+             if (grub_strcmp (term->name, aut->name) == 0
+		 || (aut->name[0] && aut->name[grub_strlen (aut->name) - 1] == '*'
+		     && grub_memcmp (term->name, aut->name,
+				     grub_strlen (aut->name) - 1) == 0))
+               break;
+         if (!term)
+           grub_printf ("%s ", aut->name);
+       }
+      grub_printf ("\n");
+      return GRUB_ERR_NONE;
+    }
+  i = 0;
+
+  if (grub_strcmp (args[0], "--append") == 0
+      || grub_strcmp (args[0], "--remove") == 0)
+    i++;
+
+  if (i == argc)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("no terminal specified"));
+
+  for (; i < argc; i++)
+    {
+      int again = 0;
+      while (1)
+       {
+         for (term = *disabled; term; term = term->next)
+           if (grub_strcmp (args[i], term->name) == 0
+	       || (grub_strcmp (args[i], "ofconsole") == 0
+		   && grub_strcmp ("console", term->name) == 0))
+             break;
+         if (term == 0)
+           for (term = *enabled; term; term = term->next)
+             if (grub_strcmp (args[i], term->name) == 0
+		 || (grub_strcmp (args[i], "ofconsole") == 0
+		     && grub_strcmp ("console", term->name) == 0))
+               break;
+         if (term)
+           break;
+         if (again)
+	   return grub_error (GRUB_ERR_BAD_ARGUMENT,
+			      N_("terminal `%s' isn't found"),
+			      args[i]);
+         for (aut = autoloads; aut; aut = aut->next)
+           if (grub_strcmp (args[i], aut->name) == 0
+	       || (grub_strcmp (args[i], "ofconsole") == 0
+		   && grub_strcmp ("console", aut->name) == 0)
+	       || (aut->name[0] && aut->name[grub_strlen (aut->name) - 1] == '*'
+		   && grub_memcmp (args[i], aut->name,
+				   grub_strlen (aut->name) - 1) == 0))
+             {
+               grub_dl_t mod;
+               mod = grub_dl_load (aut->modname);
+               if (mod)
+                 grub_dl_ref (mod);
+               grub_errno = GRUB_ERR_NONE;
+               break;
+             }
+	 if (grub_memcmp (args[i], "serial_usb",
+				  sizeof ("serial_usb") - 1) == 0
+	     && grub_term_poll_usb)
+	   {
+	     grub_term_poll_usb (1);
+	     again = 1;
+	     continue;
+	   }
+         if (!aut)
+           return grub_error (GRUB_ERR_BAD_ARGUMENT,
+			      N_("terminal `%s' isn't found"),
+                              args[i]);
+         again = 1;
+       }
+    }
+
+  if (grub_strcmp (args[0], "--append") == 0)
+    {
+      for (i = 1; i < argc; i++)
+       {
+         for (term = *disabled; term; term = term->next)
+           if (grub_strcmp (args[i], term->name) == 0
+	       || (grub_strcmp (args[i], "ofconsole") == 0
+		   && grub_strcmp ("console", term->name) == 0))
+             break;
+         if (term)
+           {
+              if (term->init && term->init (term) != GRUB_ERR_NONE)
+                return grub_errno;
+
+             grub_list_remove (GRUB_AS_LIST (term));
+             grub_list_push (GRUB_AS_LIST_P (enabled), GRUB_AS_LIST (term));
+           }
+       }
+      return GRUB_ERR_NONE;
+    }
+
+  if (grub_strcmp (args[0], "--remove") == 0)
+    {
+      for (i = 1; i < argc; i++)
+       {
+         for (term = *enabled; term; term = term->next)
+           if (grub_strcmp (args[i], term->name) == 0
+	       || (grub_strcmp (args[i], "ofconsole") == 0
+		   && grub_strcmp ("console", term->name) == 0))
+             break;
+         if (term)
+           {
+             if (!term->next && term == *enabled)
+               return grub_error (GRUB_ERR_BAD_ARGUMENT,
+                                  "can't remove the last terminal");
+             grub_list_remove (GRUB_AS_LIST (term));
+             if (term->fini)
+               term->fini (term);
+             grub_list_push (GRUB_AS_LIST_P (disabled), GRUB_AS_LIST (term));
+           }
+       }
+      return GRUB_ERR_NONE;
+    }
+  for (i = 0; i < argc; i++)
+    {
+      for (term = *disabled; term; term = term->next)
+       if (grub_strcmp (args[i], term->name) == 0
+	   || (grub_strcmp (args[i], "ofconsole") == 0
+	       && grub_strcmp ("console", term->name) == 0))
+         break;
+      if (term)
+       {
+         if (term->init && term->init (term) != GRUB_ERR_NONE)
+           return grub_errno;
+
+         grub_list_remove (GRUB_AS_LIST (term));
+         grub_list_push (GRUB_AS_LIST_P (enabled), GRUB_AS_LIST (term));
+       }       
+    }
+  
+  {
+    struct abstract_terminal *next;
+    for (term = *enabled; term; term = next)
+      {
+       next = term->next;
+       for (i = 0; i < argc; i++)
+         if (grub_strcmp (args[i], term->name) == 0
+	     || (grub_strcmp (args[i], "ofconsole") == 0
+		 && grub_strcmp ("console", term->name) == 0))
+           break;
+       if (i == argc)
+         {
+           if (!term->next && term == *enabled)
+             return grub_error (GRUB_ERR_BAD_ARGUMENT,
+                                "can't remove the last terminal");
+           grub_list_remove (GRUB_AS_LIST (term));
+           if (term->fini)
+             term->fini (term);
+           grub_list_push (GRUB_AS_LIST_P (disabled), GRUB_AS_LIST (term));
+         }
+      }
+  }
+
+  return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_cmd_terminal_input (grub_command_t cmd __attribute__ ((unused)),
+			 int argc, char **args)
+{
+  (void) GRUB_FIELD_MATCH (grub_term_inputs, struct abstract_terminal *, next);
+  (void) GRUB_FIELD_MATCH (grub_term_inputs, struct abstract_terminal *, prev);
+  (void) GRUB_FIELD_MATCH (grub_term_inputs, struct abstract_terminal *, name);
+  (void) GRUB_FIELD_MATCH (grub_term_inputs, struct abstract_terminal *, init);
+  (void) GRUB_FIELD_MATCH (grub_term_inputs, struct abstract_terminal *, fini);
+  return handle_command (argc, args,
+			 (struct abstract_terminal **) (void *) &grub_term_inputs,
+			 (struct abstract_terminal **) (void *) &grub_term_inputs_disabled,
+			 grub_term_input_autoload,
+			 N_("Active input terminals:"),
+			 N_("Available input terminals:"));
+}
+
+static grub_err_t
+grub_cmd_terminal_output (grub_command_t cmd __attribute__ ((unused)),
+                         int argc, char **args)
+{
+  (void) GRUB_FIELD_MATCH (grub_term_outputs, struct abstract_terminal *, next);
+  (void) GRUB_FIELD_MATCH (grub_term_outputs, struct abstract_terminal *, prev);
+  (void) GRUB_FIELD_MATCH (grub_term_outputs, struct abstract_terminal *, name);
+  (void) GRUB_FIELD_MATCH (grub_term_outputs, struct abstract_terminal *, init);
+  (void) GRUB_FIELD_MATCH (grub_term_outputs, struct abstract_terminal *, fini);
+  return handle_command (argc, args,
+			 (struct abstract_terminal **) (void *) &grub_term_outputs,
+			 (struct abstract_terminal **) (void *) &grub_term_outputs_disabled,
+			 grub_term_output_autoload,
+			 N_("Active output terminals:"),
+			 N_("Available output terminals:"));
+}
+
+static grub_command_t cmd_terminal_input, cmd_terminal_output;
+
+GRUB_MOD_INIT(terminal)
+{
+  cmd_terminal_input =
+    grub_register_command ("terminal_input", grub_cmd_terminal_input,
+			   N_("[--append|--remove] "
+			      "[TERMINAL1] [TERMINAL2] ..."),
+			   N_("List or select an input terminal."));
+  cmd_terminal_output =
+    grub_register_command ("terminal_output", grub_cmd_terminal_output,
+			   N_("[--append|--remove] "
+			      "[TERMINAL1] [TERMINAL2] ..."),
+			   N_("List or select an output terminal."));
+}
+
+GRUB_MOD_FINI(terminal)
+{
+  grub_unregister_command (cmd_terminal_input);
+  grub_unregister_command (cmd_terminal_output);
+}
diff --git a/grub-core/commands/test.c b/grub-core/commands/test.c
new file mode 100644
index 0000000..62d3fb3
--- /dev/null
+++ b/grub-core/commands/test.c
@@ -0,0 +1,455 @@
+/* test.c -- The test command..  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2005,2007,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/env.h>
+#include <grub/fs.h>
+#include <grub/device.h>
+#include <grub/file.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+/* A simple implementation for signed numbers. */
+static int
+grub_strtosl (char *arg, const char ** const end, int base)
+{
+  if (arg[0] == '-')
+    return -grub_strtoul (arg + 1, end, base);
+  return grub_strtoul (arg, end, base);
+}
+
+/* Context for test_parse.  */
+struct test_parse_ctx
+{
+  int invert;
+  int or, and;
+  int file_exists;
+  struct grub_dirhook_info file_info;
+  char *filename;
+};
+
+/* Take care of discarding and inverting. */
+static void
+update_val (int val, struct test_parse_ctx *ctx)
+{
+  ctx->and = ctx->and && (ctx->invert ? ! val : val);
+  ctx->invert = 0;
+}
+
+/* A hook for iterating directories. */
+static int
+find_file (const char *cur_filename, const struct grub_dirhook_info *info,
+	   void *data)
+{
+  struct test_parse_ctx *ctx = data;
+
+  if ((info->case_insensitive ? grub_strcasecmp (cur_filename, ctx->filename)
+       : grub_strcmp (cur_filename, ctx->filename)) == 0)
+    {
+      ctx->file_info = *info;
+      ctx->file_exists = 1;
+      return 1;
+    }
+  return 0;
+}
+
+/* Check if file exists and fetch its information. */
+static void
+get_fileinfo (char *path, struct test_parse_ctx *ctx)
+{
+  char *pathname;
+  char *device_name;
+  grub_fs_t fs;
+  grub_device_t dev;
+
+  ctx->file_exists = 0;
+  device_name = grub_file_get_device_name (path);
+  dev = grub_device_open (device_name);
+  if (! dev)
+    {
+      grub_free (device_name);
+      return;
+    }
+
+  fs = grub_fs_probe (dev);
+  if (! fs)
+    {
+      grub_free (device_name);
+      grub_device_close (dev);
+      return;
+    }
+
+  pathname = grub_strchr (path, ')');
+  if (! pathname)
+    pathname = path;
+  else
+    pathname++;
+
+  /* Remove trailing '/'. */
+  while (*pathname && pathname[grub_strlen (pathname) - 1] == '/')
+    pathname[grub_strlen (pathname) - 1] = 0;
+
+  /* Split into path and filename. */
+  ctx->filename = grub_strrchr (pathname, '/');
+  if (! ctx->filename)
+    {
+      path = grub_strdup ("/");
+      ctx->filename = pathname;
+    }
+  else
+    {
+      ctx->filename++;
+      path = grub_strdup (pathname);
+      path[ctx->filename - pathname] = 0;
+    }
+
+  /* It's the whole device. */
+  if (! *pathname)
+    {
+      ctx->file_exists = 1;
+      grub_memset (&ctx->file_info, 0, sizeof (ctx->file_info));
+      /* Root is always a directory. */
+      ctx->file_info.dir = 1;
+
+      /* Fetch writing time. */
+      ctx->file_info.mtimeset = 0;
+      if (fs->fs_mtime)
+	{
+	  if (! fs->fs_mtime (dev, &ctx->file_info.mtime))
+	    ctx->file_info.mtimeset = 1;
+	  grub_errno = GRUB_ERR_NONE;
+	}
+    }
+  else
+    (fs->fs_dir) (dev, path, find_file, ctx);
+
+  grub_device_close (dev);
+  grub_free (path);
+  grub_free (device_name);
+}
+
+/* Parse a test expression starting from *argn. */
+static int
+test_parse (char **args, int *argn, int argc)
+{
+  struct test_parse_ctx ctx = {
+    .and = 1,
+    .or = 0,
+    .invert = 0
+  };
+
+  /* Here we have the real parsing. */
+  while (*argn < argc)
+    {
+      /* First try 3 argument tests. */
+      if (*argn + 2 < argc)
+	{
+	  /* String tests. */
+	  if (grub_strcmp (args[*argn + 1], "=") == 0
+	      || grub_strcmp (args[*argn + 1], "==") == 0)
+	    {
+	      update_val (grub_strcmp (args[*argn], args[*argn + 2]) == 0,
+			  &ctx);
+	      (*argn) += 3;
+	      continue;
+	    }
+
+	  if (grub_strcmp (args[*argn + 1], "!=") == 0)
+	    {
+	      update_val (grub_strcmp (args[*argn], args[*argn + 2]) != 0,
+			  &ctx);
+	      (*argn) += 3;
+	      continue;
+	    }
+
+	  /* GRUB extension: lexicographical sorting. */
+	  if (grub_strcmp (args[*argn + 1], "<") == 0)
+	    {
+	      update_val (grub_strcmp (args[*argn], args[*argn + 2]) < 0,
+			  &ctx);
+	      (*argn) += 3;
+	      continue;
+	    }
+
+	  if (grub_strcmp (args[*argn + 1], "<=") == 0)
+	    {
+	      update_val (grub_strcmp (args[*argn], args[*argn + 2]) <= 0,
+			  &ctx);
+	      (*argn) += 3;
+	      continue;
+	    }
+
+	  if (grub_strcmp (args[*argn + 1], ">") == 0)
+	    {
+	      update_val (grub_strcmp (args[*argn], args[*argn + 2]) > 0,
+			  &ctx);
+	      (*argn) += 3;
+	      continue;
+	    }
+
+	  if (grub_strcmp (args[*argn + 1], ">=") == 0)
+	    {
+	      update_val (grub_strcmp (args[*argn], args[*argn + 2]) >= 0,
+			  &ctx);
+	      (*argn) += 3;
+	      continue;
+	    }
+
+	  /* Number tests. */
+	  if (grub_strcmp (args[*argn + 1], "-eq") == 0)
+	    {
+	      update_val (grub_strtosl (args[*argn], 0, 0)
+			  == grub_strtosl (args[*argn + 2], 0, 0), &ctx);
+	      (*argn) += 3;
+	      continue;
+	    }
+
+	  if (grub_strcmp (args[*argn + 1], "-ge") == 0)
+	    {
+	      update_val (grub_strtosl (args[*argn], 0, 0)
+			  >= grub_strtosl (args[*argn + 2], 0, 0), &ctx);
+	      (*argn) += 3;
+	      continue;
+	    }
+
+	  if (grub_strcmp (args[*argn + 1], "-gt") == 0)
+	    {
+	      update_val (grub_strtosl (args[*argn], 0, 0)
+			  > grub_strtosl (args[*argn + 2], 0, 0), &ctx);
+	      (*argn) += 3;
+	      continue;
+	    }
+
+	  if (grub_strcmp (args[*argn + 1], "-le") == 0)
+	    {
+	      update_val (grub_strtosl (args[*argn], 0, 0)
+		      <= grub_strtosl (args[*argn + 2], 0, 0), &ctx);
+	      (*argn) += 3;
+	      continue;
+	    }
+
+	  if (grub_strcmp (args[*argn + 1], "-lt") == 0)
+	    {
+	      update_val (grub_strtosl (args[*argn], 0, 0)
+			  < grub_strtosl (args[*argn + 2], 0, 0), &ctx);
+	      (*argn) += 3;
+	      continue;
+	    }
+
+	  if (grub_strcmp (args[*argn + 1], "-ne") == 0)
+	    {
+	      update_val (grub_strtosl (args[*argn], 0, 0)
+			  != grub_strtosl (args[*argn + 2], 0, 0), &ctx);
+	      (*argn) += 3;
+	      continue;
+	    }
+
+	  /* GRUB extension: compare numbers skipping prefixes.
+	     Useful for comparing versions. E.g. vmlinuz-2 -plt vmlinuz-11. */
+	  if (grub_strcmp (args[*argn + 1], "-pgt") == 0
+	      || grub_strcmp (args[*argn + 1], "-plt") == 0)
+	    {
+	      int i;
+	      /* Skip common prefix. */
+	      for (i = 0; args[*argn][i] == args[*argn + 2][i]
+		     && args[*argn][i]; i++);
+
+	      /* Go the digits back. */
+	      i--;
+	      while (grub_isdigit (args[*argn][i]) && i > 0)
+		i--;
+	      i++;
+
+	      if (grub_strcmp (args[*argn + 1], "-pgt") == 0)
+		update_val (grub_strtoul (args[*argn] + i, 0, 0)
+			    > grub_strtoul (args[*argn + 2] + i, 0, 0), &ctx);
+	      else
+		update_val (grub_strtoul (args[*argn] + i, 0, 0)
+			    < grub_strtoul (args[*argn + 2] + i, 0, 0), &ctx);
+	      (*argn) += 3;
+	      continue;
+	    }
+
+	  /* -nt and -ot tests. GRUB extension: when doing -?t<bias> bias
+	     will be added to the first mtime. */
+	  if (grub_memcmp (args[*argn + 1], "-nt", 3) == 0
+	      || grub_memcmp (args[*argn + 1], "-ot", 3) == 0)
+	    {
+	      struct grub_dirhook_info file1;
+	      int file1exists;
+	      int bias = 0;
+
+	      /* Fetch fileinfo. */
+	      get_fileinfo (args[*argn], &ctx);
+	      file1 = ctx.file_info;
+	      file1exists = ctx.file_exists;
+	      get_fileinfo (args[*argn + 2], &ctx);
+
+	      if (args[*argn + 1][3])
+		bias = grub_strtosl (args[*argn + 1] + 3, 0, 0);
+
+	      if (grub_memcmp (args[*argn + 1], "-nt", 3) == 0)
+		update_val ((file1exists && ! ctx.file_exists)
+			    || (file1.mtimeset && ctx.file_info.mtimeset
+				&& file1.mtime + bias > ctx.file_info.mtime),
+			    &ctx);
+	      else
+		update_val ((! file1exists && ctx.file_exists)
+			    || (file1.mtimeset && ctx.file_info.mtimeset
+				&& file1.mtime + bias < ctx.file_info.mtime),
+			    &ctx);
+	      (*argn) += 3;
+	      continue;
+	    }
+	}
+
+      /* Two-argument tests. */
+      if (*argn + 1 < argc)
+	{
+	  /* File tests. */
+	  if (grub_strcmp (args[*argn], "-d") == 0)
+	    {
+	      get_fileinfo (args[*argn + 1], &ctx);
+	      update_val (ctx.file_exists && ctx.file_info.dir, &ctx);
+	      (*argn) += 2;
+	      continue;
+	    }
+
+	  if (grub_strcmp (args[*argn], "-e") == 0)
+	    {
+	      get_fileinfo (args[*argn + 1], &ctx);
+	      update_val (ctx.file_exists, &ctx);
+	      (*argn) += 2;
+	      continue;
+	    }
+
+	  if (grub_strcmp (args[*argn], "-f") == 0)
+	    {
+	      get_fileinfo (args[*argn + 1], &ctx);
+	      /* FIXME: check for other types. */
+	      update_val (ctx.file_exists && ! ctx.file_info.dir, &ctx);
+	      (*argn) += 2;
+	      continue;
+	    }
+
+	  if (grub_strcmp (args[*argn], "-s") == 0)
+	    {
+	      grub_file_t file;
+	      file = grub_file_open (args[*argn + 1], GRUB_FILE_TYPE_GET_SIZE
+				     | GRUB_FILE_TYPE_NO_DECOMPRESS);
+	      update_val (file && (grub_file_size (file) != 0), &ctx);
+	      if (file)
+		grub_file_close (file);
+	      grub_errno = GRUB_ERR_NONE;
+	      (*argn) += 2;
+	      continue;
+	    }
+
+	  /* String tests. */
+	  if (grub_strcmp (args[*argn], "-n") == 0)
+	    {
+	      update_val (args[*argn + 1][0], &ctx);
+
+	      (*argn) += 2;
+	      continue;
+	    }
+	  if (grub_strcmp (args[*argn], "-z") == 0)
+	    {
+	      update_val (! args[*argn + 1][0], &ctx);
+	      (*argn) += 2;
+	      continue;
+	    }
+	}
+
+      /* Special modifiers. */
+
+      /* End of expression. return to parent. */
+      if (grub_strcmp (args[*argn], ")") == 0)
+	{
+	  (*argn)++;
+	  return ctx.or || ctx.and;
+	}
+      /* Recursively invoke if parenthesis. */
+      if (grub_strcmp (args[*argn], "(") == 0)
+	{
+	  (*argn)++;
+	  update_val (test_parse (args, argn, argc), &ctx);
+	  continue;
+	}
+
+      if (grub_strcmp (args[*argn], "!") == 0)
+	{
+	  ctx.invert = ! ctx.invert;
+	  (*argn)++;
+	  continue;
+	}
+      if (grub_strcmp (args[*argn], "-a") == 0)
+	{
+	  (*argn)++;
+	  continue;
+	}
+      if (grub_strcmp (args[*argn], "-o") == 0)
+	{
+	  ctx.or = ctx.or || ctx.and;
+	  ctx.and = 1;
+	  (*argn)++;
+	  continue;
+	}
+
+      /* No test found. Interpret if as just a string. */
+      update_val (args[*argn][0], &ctx);
+      (*argn)++;
+    }
+  return ctx.or || ctx.and;
+}
+
+static grub_err_t
+grub_cmd_test (grub_command_t cmd __attribute__ ((unused)),
+	       int argc, char **args)
+{
+  int argn = 0;
+
+  if (argc >= 1 && grub_strcmp (args[argc - 1], "]") == 0)
+    argc--;
+
+  return test_parse (args, &argn, argc) ? GRUB_ERR_NONE
+    : grub_error (GRUB_ERR_TEST_FAILURE, N_("false"));
+}
+
+static grub_command_t cmd_1, cmd_2;
+
+GRUB_MOD_INIT(test)
+{
+  cmd_1 = grub_register_command ("[", grub_cmd_test,
+				 N_("EXPRESSION ]"), N_("Evaluate an expression."));
+  cmd_1->flags |= GRUB_COMMAND_FLAG_EXTRACTOR;
+  cmd_2 = grub_register_command ("test", grub_cmd_test,
+				 N_("EXPRESSION"), N_("Evaluate an expression."));
+  cmd_2->flags |= GRUB_COMMAND_FLAG_EXTRACTOR;
+}
+
+GRUB_MOD_FINI(test)
+{
+  grub_unregister_command (cmd_1);
+  grub_unregister_command (cmd_2);
+}
diff --git a/grub-core/commands/testload.c b/grub-core/commands/testload.c
new file mode 100644
index 0000000..ff01a05
--- /dev/null
+++ b/grub-core/commands/testload.c
@@ -0,0 +1,170 @@
+/* testload.c - load the same file in multiple ways */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2003,2005,2006,2007,2009,2010  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/mm.h>
+#include <grub/err.h>
+#include <grub/env.h>
+#include <grub/misc.h>
+#include <grub/file.h>
+#include <grub/disk.h>
+#include <grub/term.h>
+#include <grub/loader.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+/* Helper for grub_cmd_testload.  */
+static void
+read_progress (grub_disk_addr_t sector __attribute__ ((unused)),
+	       unsigned offset __attribute__ ((unused)),
+	       unsigned len,
+	       void *data __attribute__ ((unused)))
+{
+  for (; len >= GRUB_DISK_SECTOR_SIZE; len -= GRUB_DISK_SECTOR_SIZE)
+    grub_xputs (".");
+  if (len)
+    grub_xputs (".");
+  grub_refresh ();
+}
+
+static grub_err_t
+grub_cmd_testload (struct grub_command *cmd __attribute__ ((unused)),
+		   int argc, char *argv[])
+{
+  grub_file_t file;
+  char *buf;
+  grub_size_t size;
+  grub_off_t pos;
+
+  if (argc < 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+
+  file = grub_file_open (argv[0], GRUB_FILE_TYPE_TESTLOAD);
+  if (! file)
+    return grub_errno;
+
+  size = grub_file_size (file) & ~(GRUB_DISK_SECTOR_SIZE - 1);
+  if (size == 0)
+    {
+      grub_file_close (file);
+      return GRUB_ERR_NONE;
+    }
+
+  buf = grub_malloc (size);
+  if (! buf)
+    goto fail;
+
+  grub_printf ("Reading %s sequentially", argv[0]);
+  file->read_hook = read_progress;
+  if (grub_file_read (file, buf, size) != (grub_ssize_t) size)
+    goto fail;
+  grub_printf (" Done.\n");
+
+  /* Read sequentially again.  */
+  grub_printf ("Reading %s sequentially again", argv[0]);
+  grub_file_seek (file, 0);
+
+  for (pos = 0; pos < size;)
+    {
+      char sector[GRUB_DISK_SECTOR_SIZE];
+      grub_size_t curlen = GRUB_DISK_SECTOR_SIZE;
+
+      if (curlen > size - pos)
+	curlen = size - pos;
+
+      if (grub_file_read (file, sector, curlen)
+	  != (grub_ssize_t) curlen)
+	goto fail;
+
+      if (grub_memcmp (sector, buf + pos, curlen) != 0)
+	{
+	  grub_printf ("\nDiffers in %lld\n", (unsigned long long) pos);
+	  goto fail;
+	}
+      pos += curlen;
+    }
+  grub_printf (" Done.\n");
+
+  /* Read backwards and compare.  */
+  grub_printf ("Reading %s backwards", argv[0]);
+  pos = size;
+  while (pos > 0)
+    {
+      char sector[GRUB_DISK_SECTOR_SIZE];
+
+      if (pos >= GRUB_DISK_SECTOR_SIZE)
+	pos -= GRUB_DISK_SECTOR_SIZE;
+      else
+	pos = 0;
+
+      grub_file_seek (file, pos);
+
+      if (grub_file_read (file, sector, GRUB_DISK_SECTOR_SIZE)
+	  != GRUB_DISK_SECTOR_SIZE)
+	goto fail;
+
+      if (grub_memcmp (sector, buf + pos, GRUB_DISK_SECTOR_SIZE) != 0)
+	{
+	  int i;
+
+	  grub_printf ("\nDiffers in %lld\n", (unsigned long long) pos);
+
+	  for (i = 0; i < GRUB_DISK_SECTOR_SIZE; i++)
+	    {
+	      grub_printf ("%02x ", buf[pos + i]);
+	      if ((i & 15) == 15)
+		grub_printf ("\n");
+	    }
+
+	  if (i)
+	    grub_refresh ();
+
+	  goto fail;
+	}
+    }
+  grub_printf (" Done.\n");
+
+  return GRUB_ERR_NONE;
+
+ fail:
+
+  grub_file_close (file);
+  grub_free (buf);
+
+  if (!grub_errno)
+    grub_error (GRUB_ERR_IO, "bad read");
+  return grub_errno;
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(testload)
+{
+  cmd =
+    grub_register_command ("testload", grub_cmd_testload,
+			   N_("FILE"),
+			   N_("Load the same file in multiple ways."));
+}
+
+GRUB_MOD_FINI(testload)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/testspeed.c b/grub-core/commands/testspeed.c
new file mode 100644
index 0000000..c13a9b8
--- /dev/null
+++ b/grub-core/commands/testspeed.c
@@ -0,0 +1,115 @@
+/* testspeed.c - Command to test file read speed  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2012  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/mm.h>
+#include <grub/file.h>
+#include <grub/time.h>
+#include <grub/misc.h>
+#include <grub/dl.h>
+#include <grub/extcmd.h>
+#include <grub/i18n.h>
+#include <grub/normal.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+#define DEFAULT_BLOCK_SIZE	65536
+
+static const struct grub_arg_option options[] =
+  {
+    {"size", 's', 0, N_("Specify size for each read operation"), 0, ARG_TYPE_INT},
+    {0, 0, 0, 0, 0, 0}
+  };
+
+static grub_err_t
+grub_cmd_testspeed (grub_extcmd_context_t ctxt, int argc, char **args)
+{
+  struct grub_arg_list *state = ctxt->state;
+  grub_uint64_t start;
+  grub_uint64_t end;
+  grub_ssize_t block_size;
+  grub_disk_addr_t total_size;
+  char *buffer;
+  grub_file_t file;
+  grub_uint64_t whole, fraction;
+
+  if (argc == 0)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+
+  block_size = (state[0].set) ?
+    grub_strtoul (state[0].arg, 0, 0) : DEFAULT_BLOCK_SIZE;
+
+  if (block_size <= 0)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("invalid block size"));
+
+  buffer = grub_malloc (block_size);
+  if (buffer == NULL)
+    return grub_errno;
+
+  file = grub_file_open (args[0], GRUB_FILE_TYPE_TESTLOAD);
+  if (file == NULL)
+    goto quit;
+
+  total_size = 0;
+  start = grub_get_time_ms ();
+  while (1)
+    {
+      grub_ssize_t size = grub_file_read (file, buffer, block_size);
+      if (size <= 0)
+	break;
+      total_size += size;
+    }
+  end = grub_get_time_ms ();
+  grub_file_close (file);
+
+  grub_printf_ (N_("File size: %s\n"),
+		grub_get_human_size (total_size, GRUB_HUMAN_SIZE_NORMAL));
+  whole = grub_divmod64 (end - start, 1000, &fraction);
+  grub_printf_ (N_("Elapsed time: %d.%03d s \n"),
+		(unsigned) whole,
+		(unsigned) fraction);
+
+  if (end != start)
+    {
+      grub_uint64_t speed =
+	grub_divmod64 (total_size * 100ULL * 1000ULL, end - start, 0);
+
+      grub_printf_ (N_("Speed: %s \n"),
+		    grub_get_human_size (speed,
+					 GRUB_HUMAN_SIZE_SPEED));
+    }
+
+ quit:
+  grub_free (buffer);
+
+  return grub_errno;
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT(testspeed)
+{
+  cmd = grub_register_extcmd ("testspeed", grub_cmd_testspeed, 0, N_("[-s SIZE] FILENAME"),
+			      N_("Test file read speed."),
+			      options);
+}
+
+GRUB_MOD_FINI(testspeed)
+{
+  grub_unregister_extcmd (cmd);
+}
diff --git a/grub-core/commands/time.c b/grub-core/commands/time.c
new file mode 100644
index 0000000..40d496e
--- /dev/null
+++ b/grub-core/commands/time.c
@@ -0,0 +1,68 @@
+/* echo.c - Command to display a line of text  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2011  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/time.h>
+#include <grub/misc.h>
+#include <grub/dl.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+
+static grub_err_t
+grub_cmd_time (grub_command_t ctxt __attribute__ ((unused)),
+	       int argc, char **args)
+{
+  grub_command_t cmd;
+  grub_uint32_t start;
+  grub_uint32_t end;
+
+  if (argc == 0)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("no command is specified"));
+
+  cmd = grub_command_find (args[0]);
+
+  if (!cmd)
+    return grub_error (GRUB_ERR_UNKNOWN_COMMAND, N_("can't find command `%s'"),
+		       args[0]);
+
+  start = grub_get_time_ms ();
+  (cmd->func) (cmd, argc - 1, &args[1]);
+  end = grub_get_time_ms ();
+
+  grub_printf_ (N_("Elapsed time: %d.%03d seconds \n"), (end - start) / 1000,
+		(end - start) % 1000);
+
+  return grub_errno;
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(time)
+{
+  cmd = grub_register_command ("time", grub_cmd_time,
+			      N_("COMMAND [ARGS]"),
+			       N_("Measure time used by COMMAND"));
+}
+
+GRUB_MOD_FINI(time)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/tpm.c b/grub-core/commands/tpm.c
new file mode 100644
index 0000000..2052c36
--- /dev/null
+++ b/grub-core/commands/tpm.c
@@ -0,0 +1,95 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2018  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *  Core TPM support code.
+ */
+
+#include <grub/err.h>
+#include <grub/i18n.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/tpm.h>
+#include <grub/term.h>
+#include <grub/verify.h>
+#include <grub/dl.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_err_t
+grub_tpm_verify_init (grub_file_t io,
+		      enum grub_file_type type __attribute__ ((unused)),
+		      void **context, enum grub_verify_flags *flags)
+{
+  *context = io->name;
+  *flags |= GRUB_VERIFY_FLAGS_SINGLE_CHUNK;
+  return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_tpm_verify_write (void *context, void *buf, grub_size_t size)
+{
+  return grub_tpm_measure (buf, size, GRUB_BINARY_PCR, context);
+}
+
+static grub_err_t
+grub_tpm_verify_string (char *str, enum grub_verify_string_type type)
+{
+  const char *prefix = NULL;
+  char *description;
+  grub_err_t status;
+
+  switch (type)
+    {
+    case GRUB_VERIFY_KERNEL_CMDLINE:
+      prefix = "kernel_cmdline: ";
+      break;
+    case GRUB_VERIFY_MODULE_CMDLINE:
+      prefix = "module_cmdline: ";
+      break;
+    case GRUB_VERIFY_COMMAND:
+      prefix = "grub_cmd: ";
+      break;
+    }
+  description = grub_malloc (grub_strlen (str) + grub_strlen (prefix) + 1);
+  if (!description)
+    return grub_errno;
+  grub_memcpy (description, prefix, grub_strlen (prefix));
+  grub_memcpy (description + grub_strlen (prefix), str,
+	       grub_strlen (str) + 1);
+  status =
+    grub_tpm_measure ((unsigned char *) str, grub_strlen (str),
+		      GRUB_STRING_PCR, description);
+  grub_free (description);
+  return status;
+}
+
+struct grub_file_verifier grub_tpm_verifier = {
+  .name = "tpm",
+  .init = grub_tpm_verify_init,
+  .write = grub_tpm_verify_write,
+  .verify_string = grub_tpm_verify_string,
+};
+
+GRUB_MOD_INIT (tpm)
+{
+  grub_verifier_register (&grub_tpm_verifier);
+}
+
+GRUB_MOD_FINI (tpm)
+{
+  grub_verifier_unregister (&grub_tpm_verifier);
+}
diff --git a/grub-core/commands/tr.c b/grub-core/commands/tr.c
new file mode 100644
index 0000000..ef72841
--- /dev/null
+++ b/grub-core/commands/tr.c
@@ -0,0 +1,126 @@
+/* tr.c -- The tr command.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2010,2013  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/mm.h>
+#include <grub/err.h>
+#include <grub/env.h>
+#include <grub/i18n.h>
+#include <grub/misc.h>
+#include <grub/extcmd.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const struct grub_arg_option options[] =
+  {
+    { "set", 's', 0, N_("Set a variable to return value."), N_("VARNAME"), ARG_TYPE_STRING },
+    { "upcase", 'U', 0, N_("Translate to upper case."), 0, 0 },
+    { "downcase", 'D', 0, N_("Translate to lower case."), 0, 0 },
+    { 0, 0, 0, 0, 0, 0 }
+  };
+
+static const char *letters_lowercase = "abcdefghijklmnopqrstuvwxyz";
+static const char *letters_uppercase = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+
+static grub_err_t
+grub_cmd_tr (grub_extcmd_context_t ctxt, int argc, char **args)
+{
+  char *var = 0;
+  const char *input = 0;
+  char *output = 0, *optr;
+  const char *s1 = 0;
+  const char *s2 = 0;
+  const char *iptr;
+
+  /* Select the defaults from options. */
+  if (ctxt->state[0].set) {
+    var = ctxt->state[0].arg;
+    input = grub_env_get (var);
+  }
+
+  if (ctxt->state[1].set) {
+    s1 = letters_lowercase;
+    s2 = letters_uppercase;
+  }
+
+  if (ctxt->state[2].set) {
+    s1 = letters_uppercase;
+    s2 = letters_lowercase;
+  }
+
+  /* Check for arguments and update the defaults.  */
+  if (argc == 1)
+    input = args[0];
+
+  else if (argc == 2) {
+    s1 = args[0];
+    s2 = args[1];
+
+  } else if (argc == 3) {
+    s1 = args[0];
+    s2 = args[1];
+    input = args[2];
+
+  } else if (argc > 3)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "too many parameters");
+
+  if (!s1 || !s2 || !input)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "missing parameters");
+
+  if (grub_strlen (s1) != grub_strlen (s2))
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "set sizes did not match");
+
+  /* Translate input into output buffer.  */
+
+  output = grub_malloc (grub_strlen (input) + 1);
+  if (! output)
+    return grub_errno;
+
+  optr = output;
+  for (iptr = input; *iptr; iptr++)
+    {
+      char *p = grub_strchr (s1, *iptr);
+      if (p)
+	*optr++ = s2[p - s1];
+      else
+	*optr++ = *iptr;
+    }
+  *optr = '\0';
+
+  if (ctxt->state[0].set)
+    grub_env_set (var, output);
+  else
+    grub_printf ("%s\n", output);
+
+  grub_free (output);
+  return GRUB_ERR_NONE;
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT(tr)
+{
+  cmd = grub_register_extcmd ("tr", grub_cmd_tr, 0, N_("[OPTIONS] [SET1] [SET2] [STRING]"),
+			      N_("Translate SET1 characters to SET2 in STRING."), options);
+}
+
+GRUB_MOD_FINI(tr)
+{
+  grub_unregister_extcmd (cmd);
+}
diff --git a/grub-core/commands/true.c b/grub-core/commands/true.c
new file mode 100644
index 0000000..8cbba65
--- /dev/null
+++ b/grub-core/commands/true.c
@@ -0,0 +1,61 @@
+/* true.c - true and false commands.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_err_t
+grub_cmd_true (struct grub_command *cmd __attribute__ ((unused)),
+	       int argc __attribute__ ((unused)),
+	       char *argv[] __attribute__ ((unused)))
+{
+  return 0;
+}
+
+static grub_err_t
+grub_cmd_false (struct grub_command *cmd __attribute__ ((unused)),
+		int argc __attribute__ ((unused)),
+		char *argv[] __attribute__ ((unused)))
+{
+  return grub_error (GRUB_ERR_TEST_FAILURE, N_("false"));
+}
+
+static grub_command_t cmd_true, cmd_false;
+
+
+GRUB_MOD_INIT(true)
+{
+  cmd_true =
+    grub_register_command ("true", grub_cmd_true,
+			   /* TRANSLATORS: it's a command description.  */
+			   0, N_("Do nothing, successfully."));
+  cmd_false =
+    grub_register_command ("false", grub_cmd_false,
+			   /* TRANSLATORS: it's a command description.  */
+			   0, N_("Do nothing, unsuccessfully."));
+}
+
+GRUB_MOD_FINI(true)
+{
+  grub_unregister_command (cmd_true);
+  grub_unregister_command (cmd_false);
+}
diff --git a/grub-core/commands/usbtest.c b/grub-core/commands/usbtest.c
new file mode 100644
index 0000000..2c6d93f
--- /dev/null
+++ b/grub-core/commands/usbtest.c
@@ -0,0 +1,227 @@
+/* usbtest.c - test module for USB */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2008  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/charset.h>
+#include <grub/mm.h>
+#include <grub/err.h>
+#include <grub/dl.h>
+#include <grub/usb.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const char *usb_classes[] =
+  {
+    "Unknown",
+    "Audio",
+    "Communication Interface",
+    "HID",
+    "Unknown",
+    "Physical",
+    "Image",
+    "Printer",
+    "Mass Storage",
+    "Hub",
+    "Data Interface",
+    "Smart Card",
+    "Content Security",
+    "Video"
+  };
+
+static const char *usb_endp_type[] =
+  {
+    "Control",
+    "Isochronous",
+    "Bulk",
+    "Interrupt"
+  };
+
+static const char *usb_devspeed[] =
+  {
+    "",
+    "Low",
+    "Full",
+    "High"
+  };
+
+#if __GNUC__ >= 9
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Waddress-of-packed-member"
+#endif
+
+static grub_usb_err_t
+grub_usb_get_string (grub_usb_device_t dev, grub_uint8_t index, int langid,
+		     char **string)
+{
+  struct grub_usb_desc_str descstr;
+  struct grub_usb_desc_str *descstrp;
+  grub_usb_err_t err;
+
+  /* Only get the length.  */
+  err = grub_usb_control_msg (dev, 1 << 7,
+			      0x06, (3 << 8) | index,
+			      langid, 1, (char *) &descstr);
+  if (err)
+    return err;
+
+  descstrp = grub_malloc (descstr.length);
+  if (! descstrp)
+    return GRUB_USB_ERR_INTERNAL;
+  err = grub_usb_control_msg (dev, 1 << 7,
+			      0x06, (3 << 8) | index,
+			      langid, descstr.length, (char *) descstrp);
+
+  if (descstrp->length == 0)
+    {
+      grub_free (descstrp);
+      *string = grub_strdup ("");
+      if (! *string)
+	return GRUB_USB_ERR_INTERNAL;
+      return GRUB_USB_ERR_NONE;
+    }
+
+  *string = grub_malloc (descstr.length * 2 + 1);
+  if (! *string)
+    {
+      grub_free (descstrp);
+      return GRUB_USB_ERR_INTERNAL;
+    }
+
+  *grub_utf16_to_utf8 ((grub_uint8_t *) *string, descstrp->str,
+		       descstrp->length / 2 - 1) = 0;
+  grub_free (descstrp);
+
+  return GRUB_USB_ERR_NONE;
+}
+
+#if __GNUC__ >= 9
+#pragma GCC diagnostic pop
+#endif
+
+static void
+usb_print_str (const char *description, grub_usb_device_t dev, int idx)
+{
+  char *name = NULL;
+  grub_usb_err_t err;
+  /* XXX: LANGID  */
+
+  if (! idx)
+    return;
+
+  err = grub_usb_get_string (dev, idx, 0x0409, &name);
+  if (err)
+    grub_printf ("Error %d retrieving %s\n", err, description);
+  else
+    {
+      grub_printf ("%s: `%s'\n", description, name);
+      grub_free (name);
+    }
+}
+
+static int
+usb_iterate (grub_usb_device_t dev, void *data __attribute__ ((unused)))
+{
+  struct grub_usb_desc_device *descdev;
+  int i;
+
+  descdev = &dev->descdev;
+
+  usb_print_str ("Product", dev, descdev->strprod);
+  usb_print_str ("Vendor", dev, descdev->strvendor);
+  usb_print_str ("Serial", dev, descdev->strserial);
+
+  grub_printf ("Class: (0x%02x) %s, Subclass: 0x%02x, Protocol: 0x%02x\n",
+	       descdev->class, descdev->class < ARRAY_SIZE (usb_classes)
+	       ? usb_classes[descdev->class] : "Unknown",
+	       descdev->subclass, descdev->protocol);
+  grub_printf ("USB version %d.%d, VendorID: 0x%02x, ProductID: 0x%02x, #conf: %d\n",
+	       descdev->usbrel >> 8, (descdev->usbrel >> 4) & 0x0F,
+	       descdev->vendorid, descdev->prodid, descdev->configcnt);
+
+  grub_printf ("%s speed device\n", usb_devspeed[dev->speed]);
+
+  for (i = 0; i < descdev->configcnt; i++)
+    {
+      struct grub_usb_desc_config *config;
+
+      config = dev->config[i].descconf;
+      usb_print_str ("Configuration:", dev, config->strconfig);
+    }
+
+  for (i = 0; i < dev->config[0].descconf->numif; i++)
+    {
+      int j;
+      struct grub_usb_desc_if *interf;
+      interf = dev->config[0].interf[i].descif;
+
+      grub_printf ("Interface #%d: #Endpoints: %d   ",
+		   i, interf->endpointcnt);
+      grub_printf ("Class: (0x%02x) %s, Subclass: 0x%02x, Protocol: 0x%02x\n",
+		   interf->class, interf->class < ARRAY_SIZE (usb_classes)
+		   ? usb_classes[interf->class] : "Unknown",
+		   interf->subclass, interf->protocol);
+
+      usb_print_str ("Interface", dev, interf->strif);
+
+      for (j = 0; j < interf->endpointcnt; j++)
+	{
+	  struct grub_usb_desc_endp *endp;
+	  endp = &dev->config[0].interf[i].descendp[j];
+
+	  grub_printf ("Endpoint #%d: %s, max packed size: %d, transfer type: %s, latency: %d\n",
+		       endp->endp_addr & 15,
+		       (endp->endp_addr & 128) ? "IN" : "OUT",
+		       endp->maxpacket, usb_endp_type[endp->attrib & 3],
+		       endp->interval);
+	}
+    }
+
+  grub_printf("\n");
+
+  return 0;
+}
+
+static grub_err_t
+grub_cmd_usbtest (grub_command_t cmd __attribute__ ((unused)),
+		  int argc __attribute__ ((unused)),
+		  char **args __attribute__ ((unused)))
+{
+  grub_usb_poll_devices (1);
+
+  grub_printf ("USB devices:\n\n");
+  grub_usb_iterate (usb_iterate, NULL);
+
+  return 0;
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(usbtest)
+{
+  cmd = grub_register_command ("usb", grub_cmd_usbtest,
+			       0, N_("Test USB support."));
+}
+
+GRUB_MOD_FINI(usbtest)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/commands/videoinfo.c b/grub-core/commands/videoinfo.c
new file mode 100644
index 0000000..016a4d8
--- /dev/null
+++ b/grub-core/commands/videoinfo.c
@@ -0,0 +1,262 @@
+/* videoinfo.c - command to list video modes.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2005,2007,2008,2009,2010  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/video.h>
+#include <grub/dl.h>
+#include <grub/env.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+struct hook_ctx
+{
+  unsigned height, width, depth; 
+  struct grub_video_mode_info *current_mode;
+};
+
+static int
+hook (const struct grub_video_mode_info *info, void *hook_arg)
+{
+  struct hook_ctx *ctx = hook_arg;
+
+  if (ctx->height && ctx->width && (info->width != ctx->width || info->height != ctx->height))
+    return 0;
+
+  if (ctx->depth && info->bpp != ctx->depth)
+    return 0;
+
+  if (info->mode_number == GRUB_VIDEO_MODE_NUMBER_INVALID)
+    grub_printf ("        ");
+  else
+    {
+      if (ctx->current_mode && info->mode_number == ctx->current_mode->mode_number)
+	grub_printf ("*");
+      else
+	grub_printf (" ");
+      grub_printf (" 0x%03x ", info->mode_number);
+    }
+  grub_printf ("%4d x %4d x %2d (%4d)  ", info->width, info->height, info->bpp,
+	       info->pitch);
+
+  if (info->mode_type & GRUB_VIDEO_MODE_TYPE_PURE_TEXT)
+    grub_xputs (_("Text-only "));
+  /* Show mask and position details for direct color modes.  */
+  if (info->mode_type & GRUB_VIDEO_MODE_TYPE_RGB)
+    /* TRANSLATORS: "Direct color" is a mode when the color components
+       are written dirrectly into memory.  */
+    grub_printf_ (N_("Direct color, mask: %d/%d/%d/%d  pos: %d/%d/%d/%d"),
+		  info->red_mask_size,
+		  info->green_mask_size,
+		  info->blue_mask_size,
+		  info->reserved_mask_size,
+		  info->red_field_pos,
+		  info->green_field_pos,
+		  info->blue_field_pos,
+		  info->reserved_field_pos);
+  if (info->mode_type & GRUB_VIDEO_MODE_TYPE_INDEX_COLOR)
+    /* TRANSLATORS: In "paletted color" mode you write the index of the color
+       in the palette. Synonyms include "packed pixel".  */
+    grub_xputs (_("Paletted "));
+  if (info->mode_type & GRUB_VIDEO_MODE_TYPE_YUV)
+    grub_xputs (_("YUV "));
+  if (info->mode_type & GRUB_VIDEO_MODE_TYPE_PLANAR)
+    /* TRANSLATORS: "Planar" is the video memory where you have to write
+       in several different banks "plans" to control the different color
+       components of the same pixel.  */
+    grub_xputs (_("Planar "));
+  if (info->mode_type & GRUB_VIDEO_MODE_TYPE_HERCULES)
+    grub_xputs (_("Hercules "));
+  if (info->mode_type & GRUB_VIDEO_MODE_TYPE_CGA)
+    grub_xputs (_("CGA "));
+  if (info->mode_type & GRUB_VIDEO_MODE_TYPE_NONCHAIN4)
+    /* TRANSLATORS: Non-chain 4 is a 256-color planar
+       (unchained) video memory mode.  */
+    grub_xputs (_("Non-chain 4 "));
+  if (info->mode_type & GRUB_VIDEO_MODE_TYPE_1BIT_BITMAP)
+    grub_xputs (_("Monochrome "));
+  if (info->mode_type & GRUB_VIDEO_MODE_TYPE_UNKNOWN)
+    grub_xputs (_("Unknown video mode "));
+
+  grub_xputs ("\n");
+
+  return 0;
+}
+
+static void
+print_edid (struct grub_video_edid_info *edid_info)
+{
+  unsigned int edid_width, edid_height;
+
+  if (grub_video_edid_checksum (edid_info))
+    {
+      grub_puts_ (N_("  EDID checksum invalid"));
+      grub_errno = GRUB_ERR_NONE;
+      return;
+    }
+
+  grub_printf_ (N_("  EDID version: %u.%u\n"),
+		edid_info->version, edid_info->revision);
+  if (grub_video_edid_preferred_mode (edid_info, &edid_width, &edid_height)
+	== GRUB_ERR_NONE)
+    grub_printf_ (N_("    Preferred mode: %ux%u\n"), edid_width, edid_height);
+  else
+    {
+      grub_printf_ (N_("    No preferred mode available\n"));
+      grub_errno = GRUB_ERR_NONE;
+    }
+}
+
+static grub_err_t
+grub_cmd_videoinfo (grub_command_t cmd __attribute__ ((unused)),
+		    int argc, char **args)
+{
+  grub_video_adapter_t adapter;
+  grub_video_driver_id_t id;
+  struct hook_ctx ctx;
+
+  ctx.height = ctx.width = ctx.depth = 0;
+  if (argc)
+    {
+      const char *ptr;
+      ptr = args[0];
+      ctx.width = grub_strtoul (ptr, &ptr, 0);
+      if (grub_errno)
+	return grub_errno;
+      if (*ptr != 'x')
+	return grub_error (GRUB_ERR_BAD_ARGUMENT,
+			   N_("invalid video mode specification `%s'"),
+			   args[0]);
+      ptr++;
+      ctx.height = grub_strtoul (ptr, &ptr, 0);
+      if (grub_errno)
+	return grub_errno;
+      if (*ptr == 'x')
+	{
+	  ptr++;
+	  ctx.depth = grub_strtoul (ptr, &ptr, 0);
+	  if (grub_errno)
+	    return grub_errno;
+	}
+    }
+
+#ifdef GRUB_MACHINE_PCBIOS
+  if (grub_strcmp (cmd->name, "vbeinfo") == 0)
+    grub_dl_load ("vbe");
+#endif
+
+  id = grub_video_get_driver_id ();
+
+  grub_puts_ (N_("List of supported video modes:"));
+  grub_puts_ (N_("Legend: mask/position=red/green/blue/reserved"));
+
+  FOR_VIDEO_ADAPTERS (adapter)
+  {
+    struct grub_video_mode_info info;
+    struct grub_video_edid_info edid_info;
+
+    grub_printf_ (N_("Adapter `%s':\n"), adapter->name);
+
+    if (!adapter->iterate)
+      {
+	grub_puts_ (N_("  No info available"));
+	continue;
+      }
+
+    ctx.current_mode = NULL;
+
+    if (adapter->id == id)
+      {
+	if (grub_video_get_info (&info) == GRUB_ERR_NONE)
+	  ctx.current_mode = &info;
+	else
+	  /* Don't worry about errors.  */
+	  grub_errno = GRUB_ERR_NONE;
+      }
+    else
+      {
+	if (adapter->init ())
+	  {
+	    grub_puts_ (N_("  Failed to initialize video adapter"));
+	    grub_errno = GRUB_ERR_NONE;
+	    continue;
+	  }
+      }
+
+    if (adapter->print_adapter_specific_info)
+      adapter->print_adapter_specific_info ();
+
+    adapter->iterate (hook, &ctx);
+
+    if (adapter->get_edid && adapter->get_edid (&edid_info) == GRUB_ERR_NONE)
+      print_edid (&edid_info);
+    else
+      grub_errno = GRUB_ERR_NONE;
+
+    ctx.current_mode = NULL;
+
+    if (adapter->id != id)
+      {
+	if (adapter->fini ())
+	  {
+	    grub_errno = GRUB_ERR_NONE;
+	    continue;
+	  }
+      }
+  }
+  return GRUB_ERR_NONE;
+}
+
+static grub_command_t cmd;
+#ifdef GRUB_MACHINE_PCBIOS
+static grub_command_t cmd_vbe;
+#endif
+
+GRUB_MOD_INIT(videoinfo)
+{
+  cmd = grub_register_command ("videoinfo", grub_cmd_videoinfo,
+			       /* TRANSLATORS: "x" has to be entered in,
+				  like an identifier, so please don't
+				  use better Unicode codepoints.  */
+			       N_("[WxH[xD]]"),
+			       N_("List available video modes. If "
+				     "resolution is given show only modes"
+				     " matching it."));
+#ifdef GRUB_MACHINE_PCBIOS
+  cmd_vbe = grub_register_command ("vbeinfo", grub_cmd_videoinfo,
+				   /* TRANSLATORS: "x" has to be entered in,
+				      like an identifier, so please don't
+				      use better Unicode codepoints.  */
+				   N_("[WxH[xD]]"),
+				   N_("List available video modes. If "
+				      "resolution is given show only modes"
+				      " matching it."));
+#endif
+}
+
+GRUB_MOD_FINI(videoinfo)
+{
+  grub_unregister_command (cmd);
+#ifdef GRUB_MACHINE_PCBIOS
+  grub_unregister_command (cmd_vbe);
+#endif
+}
+
diff --git a/grub-core/commands/videotest.c b/grub-core/commands/videotest.c
new file mode 100644
index 0000000..b6c181b
--- /dev/null
+++ b/grub-core/commands/videotest.c
@@ -0,0 +1,241 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2006,2007,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/video.h>
+#include <grub/types.h>
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/font.h>
+#include <grub/term.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+#include <grub/gfxmenu_view.h>
+#include <grub/env.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_err_t
+grub_cmd_videotest (grub_command_t cmd __attribute__ ((unused)),
+                    int argc, char **args)
+{
+  grub_err_t err;
+  grub_video_color_t color;
+  unsigned int x;
+  unsigned int y;
+  unsigned int width;
+  unsigned int height;
+  int i;
+  struct grub_video_render_target *text_layer;
+  grub_video_color_t palette[16];
+  const char *mode = NULL;
+
+#ifdef GRUB_MACHINE_PCBIOS
+  if (grub_strcmp (cmd->name, "vbetest") == 0)
+    grub_dl_load ("vbe");
+#endif
+  mode = grub_env_get ("gfxmode");
+  if (argc)
+    mode = args[0];
+  if (!mode)
+    mode = "auto";
+
+  err = grub_video_set_mode (mode, GRUB_VIDEO_MODE_TYPE_PURE_TEXT, 0);
+  if (err)
+    return err;
+
+  grub_video_get_viewport (&x, &y, &width, &height);
+
+  {
+    const char *str;
+    int texty;
+    grub_font_t sansbig;
+    grub_font_t sans;
+    grub_font_t sanssmall;
+    grub_font_t fixed;
+    struct grub_font_glyph *glyph;
+
+    if (grub_video_create_render_target (&text_layer, width, height,
+					 GRUB_VIDEO_MODE_TYPE_RGB
+					 | GRUB_VIDEO_MODE_TYPE_ALPHA)
+	|| !text_layer)
+      goto fail;
+
+    grub_video_set_active_render_target (text_layer);
+
+    color = grub_video_map_rgb (0, 255, 255);
+    sansbig = grub_font_get ("Unknown Regular 16");
+    sans = grub_font_get ("Unknown Regular 16");
+    sanssmall = grub_font_get ("Unknown Regular 16");
+    fixed = grub_font_get ("Fixed 20");
+    if (! sansbig || ! sans || ! sanssmall || ! fixed)
+      return grub_error (GRUB_ERR_BAD_FONT, "no font loaded");
+
+    glyph = grub_font_get_glyph (fixed, '*');
+    grub_font_draw_glyph (glyph, color, 200 ,0);
+
+    color = grub_video_map_rgb (255, 255, 255);
+
+    texty = 32;
+    grub_font_draw_string ("The quick brown fox jumped over the lazy dog.",
+			   sans, color, 16, texty);
+    texty += grub_font_get_descent (sans) + grub_font_get_leading (sans);
+
+    texty += grub_font_get_ascent (fixed);
+    grub_font_draw_string ("The quick brown fox jumped over the lazy dog.",
+			   fixed, color, 16, texty);
+    texty += grub_font_get_descent (fixed) + grub_font_get_leading (fixed);
+
+    /* To convert Unicode characters into UTF-8 for this test, the following
+       command is useful:
+       echo -ne '\x00\x00\x26\x3A' | iconv -f UTF-32BE -t UTF-8 | od -t x1
+       This converts the Unicode character U+263A to UTF-8.  */
+
+    /* Characters used:
+       Code point  Description                    UTF-8 encoding
+       ----------- ------------------------------ --------------
+       U+263A      unfilled smiley face           E2 98 BA
+       U+00A1      inverted exclamation point     C2 A1
+       U+00A3      British pound currency symbol  C2 A3
+       U+03C4      Greek tau                      CF 84
+       U+00E4      lowercase letter a with umlaut C3 A4
+       U+2124      set 'Z' symbol (integers)      E2 84 A4
+       U+2286      subset symbol                  E2 8A 86
+       U+211D      set 'R' symbol (real numbers)  E2 84 9D  */
+
+    str =
+      "Unicode test: happy\xE2\x98\xBA \xC2\xA3 5.00"
+      " \xC2\xA1\xCF\x84\xC3\xA4u! "
+      " \xE2\x84\xA4\xE2\x8A\x86\xE2\x84\x9D";
+    color = grub_video_map_rgb (128, 128, 255);
+
+    /* All characters in the string exist in the 'Fixed 20' (10x20) font.  */
+    texty += grub_font_get_ascent(fixed);
+    grub_font_draw_string (str, fixed, color, 16, texty);
+    texty += grub_font_get_descent (fixed) + grub_font_get_leading (fixed);
+
+    texty += grub_font_get_ascent(sansbig);
+    grub_font_draw_string (str, sansbig, color, 16, texty);
+    texty += grub_font_get_descent (sansbig) + grub_font_get_leading (sansbig);
+
+    texty += grub_font_get_ascent(sans);
+    grub_font_draw_string (str, sans, color, 16, texty);
+    texty += grub_font_get_descent (sans) + grub_font_get_leading (sans);
+
+    texty += grub_font_get_ascent(sanssmall);
+    grub_font_draw_string (str, sanssmall, color, 16, texty);
+    texty += (grub_font_get_descent (sanssmall)
+	      + grub_font_get_leading (sanssmall));
+
+    glyph = grub_font_get_glyph (fixed, '*');
+
+    for (i = 0; i < 16; i++)
+      {
+	color = grub_video_map_color (i);
+	palette[i] = color;
+	grub_font_draw_glyph (glyph, color, 16 + i * 16, 220);
+      }
+  }
+
+  grub_video_set_active_render_target (GRUB_VIDEO_RENDER_TARGET_DISPLAY);
+
+  for (i = 0; i < 5; i++)
+    {
+
+      if (i == 0 || i == 1)
+	{	  
+	  color = grub_video_map_rgb (0, 0, 0);
+	  grub_video_fill_rect (color, 0, 0, width, height);
+
+	  color = grub_video_map_rgb (255, 0, 0);
+	  grub_video_fill_rect (color, 0, 0, 100, 100);
+
+	  color = grub_video_map_rgb (0, 255, 0);
+	  grub_video_fill_rect (color, 100, 0, 100, 100);
+
+	  color = grub_video_map_rgb (0, 0, 255);
+	  grub_video_fill_rect (color, 200, 0, 100, 100);
+
+	  color = grub_video_map_rgb (0, 255, 255);
+	  grub_video_fill_rect (color, 0, 100, 100, 100);
+
+	  color = grub_video_map_rgb (255, 0, 255);
+	  grub_video_fill_rect (color, 100, 100, 100, 100);
+
+	  color = grub_video_map_rgb (255, 255, 0);
+	  grub_video_fill_rect (color, 200, 100, 100, 100);
+
+	  grub_video_set_viewport (x + 150, y + 150,
+				   width - 150 * 2, height - 150 * 2);
+	  color = grub_video_map_rgb (77, 33, 77);
+	  grub_video_fill_rect (color, 0, 0, width, height);
+	}
+
+      color = grub_video_map_rgb (i, 33, 77);
+      grub_video_fill_rect (color, 0, 0, width, height);
+      grub_video_blit_render_target (text_layer, GRUB_VIDEO_BLIT_BLEND, 0, 0,
+                                     0, 0, width, height);
+      grub_video_swap_buffers ();
+    }
+
+  grub_getkey ();
+
+  grub_video_delete_render_target (text_layer);
+
+  grub_video_restore ();
+
+  for (i = 0; i < 16; i++)
+    grub_printf("color %d: %08x\n", i, palette[i]);
+
+  grub_errno = GRUB_ERR_NONE;
+  return grub_errno;
+
+ fail:
+  grub_video_delete_render_target (text_layer);
+  grub_video_restore ();
+  return grub_errno;
+}
+
+static grub_command_t cmd;
+#ifdef GRUB_MACHINE_PCBIOS
+static grub_command_t cmd_vbe;
+#endif
+
+GRUB_MOD_INIT(videotest)
+{
+  cmd = grub_register_command ("videotest", grub_cmd_videotest,
+			       /* TRANSLATORS: "x" has to be entered in,
+				  like an identifier, so please don't
+				  use better Unicode codepoints.  */
+			       N_("[WxH]"),
+			       /* TRANSLATORS: Here, on the other hand, it's
+				  nicer to use unicode cross instead of x.  */
+			       N_("Test video subsystem in mode WxH."));
+#ifdef GRUB_MACHINE_PCBIOS
+  cmd_vbe = grub_register_command ("vbetest", grub_cmd_videotest,
+			       0, N_("Test video subsystem."));
+#endif
+}
+
+GRUB_MOD_FINI(videotest)
+{
+  grub_unregister_command (cmd);
+#ifdef GRUB_MACHINE_PCBIOS
+  grub_unregister_command (cmd_vbe);
+#endif
+}
diff --git a/grub-core/commands/wildcard.c b/grub-core/commands/wildcard.c
new file mode 100644
index 0000000..cc32903
--- /dev/null
+++ b/grub-core/commands/wildcard.c
@@ -0,0 +1,652 @@
+/* wildcard.c - Wildcard character expansion for GRUB script.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2010  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/mm.h>
+#include <grub/fs.h>
+#include <grub/env.h>
+#include <grub/file.h>
+#include <grub/device.h>
+#include <grub/script_sh.h>
+#include <grub/safemath.h>
+
+#include <regex.h>
+
+static inline int isregexop (char ch);
+static char ** merge (char **lhs, char **rhs);
+static char *make_dir (const char *prefix, const char *start, const char *end);
+static int make_regex (const char *regex_start, const char *regex_end,
+		       regex_t *regexp);
+static void split_path (const char *path, const char **suffix_end, const char **regex_end);
+static char ** match_devices (const regex_t *regexp, int noparts);
+static char ** match_files (const char *prefix, const char *suffix_start,
+			    const char *suffix_end, const regex_t *regexp);
+
+static grub_err_t wildcard_expand (const char *s, char ***strs);
+
+struct grub_script_wildcard_translator grub_filename_translator = {
+  .expand = wildcard_expand,
+};
+
+static char **
+merge (char **dest, char **ps)
+{
+  int i;
+  int j;
+  char **p;
+  grub_size_t sz;
+
+  if (! dest)
+    return ps;
+
+  if (! ps)
+    return dest;
+
+  for (i = 0; dest[i]; i++)
+    ;
+  for (j = 0; ps[j]; j++)
+    ;
+
+  if (grub_add (i, j, &sz) ||
+      grub_add (sz, 1, &sz) ||
+      grub_mul (sz, sizeof (char *), &sz))
+    return dest;
+
+  p = grub_realloc (dest, sz);
+  if (! p)
+    {
+      grub_free (dest);
+      grub_free (ps);
+      return 0;
+    }
+
+  dest = p;
+  for (j = 0; ps[j]; j++)
+    dest[i++] = ps[j];
+  dest[i] = 0;
+
+  grub_free (ps);
+  return dest;
+}
+
+static inline int
+isregexop (char ch)
+{
+  return grub_strchr ("*.\\|+{}[]?", ch) ? 1 : 0;
+}
+
+static char *
+make_dir (const char *prefix, const char *start, const char *end)
+{
+  char ch;
+  unsigned i;
+  unsigned n;
+  char *result;
+
+  i = grub_strlen (prefix);
+  n = i + end - start;
+
+  result = grub_malloc (n + 1);
+  if (! result)
+    return 0;
+
+  grub_strcpy (result, prefix);
+  while (start < end && (ch = *start++))
+    if (ch == '\\' && isregexop (*start))
+      result[i++] = *start++;
+    else
+      result[i++] = ch;
+
+  result[i] = '\0';
+  return result;
+}
+
+static int
+make_regex (const char *start, const char *end, regex_t *regexp)
+{
+  char ch;
+  int i = 0;
+  unsigned len = end - start;
+  char *buffer;
+  grub_size_t sz;
+
+  /* Worst case size is (len * 2 + 2 + 1). */
+  if (grub_mul (len, 2, &sz) ||
+      grub_add (sz, 3, &sz))
+    return 1;
+
+  buffer = grub_malloc (sz);
+  if (! buffer)
+    return 1;
+
+  buffer[i++] = '^';
+  while (start < end)
+    {
+      /* XXX Only * and ? expansion for now.  */
+      switch ((ch = *start++))
+	{
+	case '\\':
+	  buffer[i++] = ch;
+	  if (*start != '\0')
+	    buffer[i++] = *start++;
+	  break;
+
+	case '.':
+	case '(':
+	case ')':
+	case '@':
+	case '+':
+	case '|':
+	case '{':
+	case '}':
+	case '[':
+	case ']':
+	  buffer[i++] = '\\';
+	  buffer[i++] = ch;
+	  break;
+
+	case '*':
+	  buffer[i++] = '.';
+	  buffer[i++] = '*';
+	  break;
+
+	case '?':
+	  buffer[i++] = '.';
+	  break;
+
+	default:
+	  buffer[i++] = ch;
+	}
+    }
+  buffer[i++] = '$';
+  buffer[i] = '\0';
+  grub_dprintf ("expand", "Regexp is %s\n", buffer);
+
+  if (regcomp (regexp, buffer, RE_SYNTAX_GNU_AWK))
+    {
+      grub_free (buffer);
+      return 1;
+    }
+
+  grub_free (buffer);
+  return 0;
+}
+
+/* Split `str' into two parts: (1) dirname that is regexop free (2)
+   dirname that has a regexop.  */
+static void
+split_path (const char *str, const char **noregexop, const char **regexop)
+{
+  char ch = 0;
+  int regex = 0;
+
+  const char *end;
+  const char *split;  /* points till the end of dirnaname that doesn't
+			 need expansion.  */
+
+  split = end = str;
+  while ((ch = *end))
+    {
+      if (ch == '\\' && end[1])
+	end++;
+
+      else if (ch == '*' || ch == '?')
+	regex = 1;
+
+      else if (ch == '/' && ! regex)
+	split = end + 1;  /* forward to next regexop-free dirname */
+
+      else if (ch == '/' && regex)
+	break;  /* stop at the first dirname with a regexop */
+
+      end++;
+    }
+
+  *regexop = end;
+  if (! regex)
+    *noregexop = end;
+  else
+    *noregexop = split;
+}
+
+/* Context for match_devices.  */
+struct match_devices_ctx
+{
+  const regex_t *regexp;
+  int noparts;
+  int ndev;
+  char **devs;
+};
+
+/* Helper for match_devices.  */
+static int
+match_devices_iter (const char *name, void *data)
+{
+  struct match_devices_ctx *ctx = data;
+  char **t;
+  char *buffer;
+  grub_size_t sz;
+
+  /* skip partitions if asked to. */
+  if (ctx->noparts && grub_strchr (name, ','))
+    return 0;
+
+  buffer = grub_xasprintf ("(%s)", name);
+  if (! buffer)
+    return 1;
+
+  grub_dprintf ("expand", "matching: %s\n", buffer);
+  if (regexec (ctx->regexp, buffer, 0, 0, 0))
+    {
+      grub_dprintf ("expand", "not matched\n");
+ fail:
+      grub_free (buffer);
+      return 0;
+    }
+
+  if (grub_add (ctx->ndev, 2, &sz) ||
+      grub_mul (sz, sizeof (char *), &sz))
+    goto fail;
+
+  t = grub_realloc (ctx->devs, sz);
+  if (! t)
+    {
+      grub_free (buffer);
+      return 1;
+    }
+
+  ctx->devs = t;
+  ctx->devs[ctx->ndev++] = buffer;
+  ctx->devs[ctx->ndev] = 0;
+  return 0;
+}
+
+static char **
+match_devices (const regex_t *regexp, int noparts)
+{
+  struct match_devices_ctx ctx = {
+    .regexp = regexp,
+    .noparts = noparts,
+    .ndev = 0,
+    .devs = 0
+  };
+  int i;
+
+  if (grub_device_iterate (match_devices_iter, &ctx))
+    goto fail;
+
+  return ctx.devs;
+
+ fail:
+
+  for (i = 0; ctx.devs && ctx.devs[i]; i++)
+    grub_free (ctx.devs[i]);
+
+  grub_free (ctx.devs);
+
+  return 0;
+}
+
+/* Context for match_files.  */
+struct match_files_ctx
+{
+  const regex_t *regexp;
+  char **files;
+  unsigned nfile;
+  char *dir;
+};
+
+/* Helper for match_files.  */
+static int
+match_files_iter (const char *name,
+		  const struct grub_dirhook_info *info __attribute__((unused)),
+		  void *data)
+{
+  struct match_files_ctx *ctx = data;
+  char **t;
+  char *buffer;
+  grub_size_t sz;
+
+  /* skip . and .. names */
+  if (grub_strcmp(".", name) == 0 || grub_strcmp("..", name) == 0)
+    return 0;
+
+  grub_dprintf ("expand", "matching: %s in %s\n", name, ctx->dir);
+  if (regexec (ctx->regexp, name, 0, 0, 0))
+    return 0;
+
+  grub_dprintf ("expand", "matched\n");
+
+  buffer = grub_xasprintf ("%s%s", ctx->dir, name);
+  if (! buffer)
+    return 1;
+
+  if (grub_add (ctx->nfile, 2, &sz) ||
+      grub_mul (sz, sizeof (char *), &sz))
+    goto fail;
+
+  t = grub_realloc (ctx->files, sz);
+  if (!t)
+    {
+ fail:
+      grub_free (buffer);
+      return 1;
+    }
+
+  ctx->files = t;
+  ctx->files[ctx->nfile++] = buffer;
+  ctx->files[ctx->nfile] = 0;
+  return 0;
+}
+
+static char **
+match_files (const char *prefix, const char *suffix, const char *end,
+	     const regex_t *regexp)
+{
+  struct match_files_ctx ctx = {
+    .regexp = regexp,
+    .nfile = 0,
+    .files = 0
+  };
+  int i;
+  const char *path;
+  char *device_name;
+  grub_fs_t fs;
+  grub_device_t dev;
+
+  dev = 0;
+  device_name = 0;
+  grub_error_push ();
+
+  ctx.dir = make_dir (prefix, suffix, end);
+  if (! ctx.dir)
+    goto fail;
+
+  device_name = grub_file_get_device_name (ctx.dir);
+  dev = grub_device_open (device_name);
+  if (! dev)
+    goto fail;
+
+  fs = grub_fs_probe (dev);
+  if (! fs)
+    goto fail;
+
+  if (ctx.dir[0] == '(')
+    {
+      path = grub_strchr (ctx.dir, ')');
+      if (!path)
+	goto fail;
+      path++;
+    }
+  else
+    path = ctx.dir;
+
+  if (fs->fs_dir (dev, path, match_files_iter, &ctx))
+    goto fail;
+
+  grub_free (ctx.dir);
+  grub_device_close (dev);
+  grub_free (device_name);
+  grub_error_pop ();
+  return ctx.files;
+
+ fail:
+
+  grub_free (ctx.dir);
+
+  for (i = 0; ctx.files && ctx.files[i]; i++)
+    grub_free (ctx.files[i]);
+
+  grub_free (ctx.files);
+
+  if (dev)
+    grub_device_close (dev);
+
+  grub_free (device_name);
+
+  grub_error_pop ();
+  return 0;
+}
+
+/* Context for check_file.  */
+struct check_file_ctx
+{
+  const char *basename;
+  int found;
+};
+
+/* Helper for check_file.  */
+static int
+check_file_iter (const char *name, const struct grub_dirhook_info *info,
+		 void *data)
+{
+  struct check_file_ctx *ctx = data;
+
+  if (ctx->basename[0] == 0
+      || (info->case_insensitive ? grub_strcasecmp (name, ctx->basename) == 0
+	  : grub_strcmp (name, ctx->basename) == 0))
+    {
+      ctx->found = 1;
+      return 1;
+    }
+  
+  return 0;
+}
+
+static int
+check_file (const char *dir, const char *basename)
+{
+  struct check_file_ctx ctx = {
+    .basename = basename,
+    .found = 0
+  };
+  grub_fs_t fs;
+  grub_device_t dev;
+  const char *device_name, *path;
+
+  device_name = grub_file_get_device_name (dir);
+  dev = grub_device_open (device_name);
+  if (! dev)
+    goto fail;
+
+  fs = grub_fs_probe (dev);
+  if (! fs)
+    goto fail;
+
+  if (dir[0] == '(')
+    {
+      path = grub_strchr (dir, ')');
+      if (!path)
+	goto fail;
+      path++;
+    }
+  else
+    path = dir;
+
+  fs->fs_dir (dev, path[0] ? path : "/", check_file_iter, &ctx);
+  if (grub_errno == 0 && basename[0] == 0)
+    ctx.found = 1;
+
+ fail:
+  grub_errno = 0;
+
+  return ctx.found;
+}
+
+static void
+unescape (char *out, const char *in, const char *end)
+{
+  char *optr;
+  const char *iptr;
+
+  for (optr = out, iptr = in; iptr < end;)
+    {
+      if (*iptr == '\\' && iptr + 1 < end)
+	{
+	  *optr++ = iptr[1];
+	  iptr += 2;
+	  continue;
+	}
+      if (*iptr == '\\')
+	break;
+      *optr++ = *iptr++;
+    }
+  *optr = 0;
+}
+
+static grub_err_t
+wildcard_expand (const char *s, char ***strs)
+{
+  const char *start;
+  const char *regexop;
+  const char *noregexop;
+  char **paths = 0;
+  int had_regexp = 0;
+
+  unsigned i;
+  regex_t regexp;
+
+  *strs = 0;
+  if (s[0] != '/' && s[0] != '(' && s[0] != '*')
+    return 0;
+
+  start = s;
+  while (*start)
+    {
+      split_path (start, &noregexop, &regexop);
+
+      if (noregexop == regexop)
+	{
+	  grub_dprintf ("expand", "no expansion needed\n");
+	  if (paths == 0)
+	    {
+	      paths = grub_malloc (sizeof (char *) * 2);
+	      if (!paths)
+		goto fail;
+	      paths[0] = grub_malloc (regexop - start + 1);
+	      if (!paths[0])
+		goto fail;
+	      unescape (paths[0], start, regexop);
+	      paths[1] = 0;
+	    }
+	  else
+	    {
+	      int j = 0;
+	      for (i = 0; paths[i]; i++)
+		{
+		  char *o, *oend;
+		  char *n;
+		  char *p;
+		  o = paths[i];
+		  oend = o + grub_strlen (o);
+		  n = grub_malloc ((oend - o) + (regexop - start) + 1);
+		  if (!n)
+		    goto fail;
+		  grub_memcpy (n, o, oend - o);
+
+		  unescape (n + (oend - o), start, regexop);
+		  if (had_regexp)
+		    p = grub_strrchr (n, '/');
+		  else
+		    p = 0;
+		  if (!p)
+		    {
+		      grub_free (o);
+		      paths[j++] = n;
+		      continue;
+		    }
+		  *p = 0;
+		  if (!check_file (n, p + 1))
+		    {
+		      grub_dprintf ("expand", "file <%s> in <%s> not found\n",
+				    p + 1, n);
+		      grub_free (o);
+		      grub_free (n);
+			      continue;
+		    }
+		  *p = '/';
+		  grub_free (o);
+		  paths[j++] = n;
+		}
+	      if (j == 0)
+		{
+		  grub_free (paths);
+		  paths = 0;
+		  goto done;
+		}
+	      paths[j] = 0;
+	    }
+	  grub_dprintf ("expand", "paths[0] = `%s'\n", paths[0]);
+	  start = regexop;
+	  continue;
+	}
+
+      if (make_regex (noregexop, regexop, &regexp))
+	goto fail;
+
+      had_regexp = 1;
+
+      if (paths == 0)
+	{
+	  if (start == noregexop) /* device part has regexop */
+	    paths = match_devices (&regexp, *start != '(');
+
+	  else  /* device part explicit wo regexop */
+	    paths = match_files ("", start, noregexop, &regexp);
+	}
+      else
+	{
+	  char **r = 0;
+
+	  for (i = 0; paths[i]; i++)
+	    {
+	      char **p;
+
+	      p = match_files (paths[i], start, noregexop, &regexp);
+	      grub_free (paths[i]);
+	      if (! p)
+		continue;
+
+	      r = merge (r, p);
+	      if (! r)
+		goto fail;
+	    }
+	  grub_free (paths);
+	  paths = r;
+	}
+
+      regfree (&regexp);
+      if (! paths)
+	goto done;
+
+      start = regexop;
+    }
+
+ done:
+
+  *strs = paths;
+  return 0;
+
+ fail:
+
+  for (i = 0; paths && paths[i]; i++)
+    grub_free (paths[i]);
+  grub_free (paths);
+  regfree (&regexp);
+  return grub_errno;
+}
diff --git a/grub-core/commands/xen/lsxen.c b/grub-core/commands/xen/lsxen.c
new file mode 100644
index 0000000..9771310
--- /dev/null
+++ b/grub-core/commands/xen/lsxen.c
@@ -0,0 +1,90 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2011  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+#include <grub/xen.h>
+#include <grub/term.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static int
+hook (const char *dir, void *hook_data __attribute__ ((unused)))
+{
+  grub_printf ("%s\n", dir);
+  return 0;
+}
+
+static grub_err_t
+grub_cmd_lsxen (grub_command_t cmd __attribute__ ((unused)),
+		int argc, char **args)
+{
+  char *dir;
+  grub_err_t err;
+  char *buf;
+
+  if (argc >= 1)
+    return grub_xenstore_dir (args[0], hook, NULL);
+
+  buf = grub_xenstore_get_file ("domid", NULL);
+  if (!buf)
+    return grub_errno;
+  dir = grub_xasprintf ("/local/domain/%s", buf);
+  grub_free (buf);
+  err = grub_xenstore_dir (dir, hook, NULL);
+  grub_free (dir);
+  return err;
+}
+
+static grub_err_t
+grub_cmd_catxen (grub_command_t cmd __attribute__ ((unused)),
+		 int argc, char **args)
+{
+  const char *dir = "domid";
+  char *buf;
+
+  if (argc >= 1)
+    dir = args[0];
+
+  buf = grub_xenstore_get_file (dir, NULL);
+  if (!buf)
+    return grub_errno;
+  grub_xputs (buf);
+  grub_xputs ("\n");
+  grub_free (buf);
+  return GRUB_ERR_NONE;
+
+}
+
+static grub_command_t cmd_ls, cmd_cat;
+
+GRUB_MOD_INIT (lsxen)
+{
+  cmd_ls = grub_register_command ("xen_ls", grub_cmd_lsxen, N_("[DIR]"),
+				  N_("List Xen storage."));
+  cmd_cat = grub_register_command ("xen_cat", grub_cmd_catxen, N_("[DIR]"),
+				   N_("List Xen storage."));
+}
+
+GRUB_MOD_FINI (lsxen)
+{
+  grub_unregister_command (cmd_ls);
+  grub_unregister_command (cmd_cat);
+}
diff --git a/grub-core/commands/xnu_uuid.c b/grub-core/commands/xnu_uuid.c
new file mode 100644
index 0000000..ae4b3a4
--- /dev/null
+++ b/grub-core/commands/xnu_uuid.c
@@ -0,0 +1,119 @@
+/* xnu_uuid.c - transform 64-bit serial number
+   to 128-bit uuid suitable for xnu. */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 1995,1996,1998,1999,2001,2002,
+ *                2003, 2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/err.h>
+#include <grub/dl.h>
+#include <grub/device.h>
+#include <grub/disk.h>
+#include <grub/fs.h>
+#include <grub/file.h>
+#include <grub/misc.h>
+#include <grub/env.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+#include <grub/crypto.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+/* This prefix is used by xnu and boot-132 to hash
+   together with volume serial. */
+static grub_uint8_t hash_prefix[16]
+  = {0xB3, 0xE2, 0x0F, 0x39, 0xF2, 0x92, 0x11, 0xD6,
+     0x97, 0xA4, 0x00, 0x30, 0x65, 0x43, 0xEC, 0xAC};
+
+static grub_err_t
+grub_cmd_xnu_uuid (grub_command_t cmd __attribute__ ((unused)),
+		   int argc, char **args)
+{
+  grub_uint64_t serial;
+  grub_uint8_t *xnu_uuid;
+  char uuid_string[sizeof ("xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx")];
+  char *ptr;
+  void *ctx;
+  int low = 0;
+
+  if (argc < 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "UUID required");
+
+  if (argc > 1 && grub_strcmp (args[0], "-l") == 0)
+    {
+      low = 1;
+      argc--;
+      args++;
+    }
+
+  serial = grub_cpu_to_be64 (grub_strtoull (args[0], 0, 16));
+
+  ctx = grub_zalloc (GRUB_MD_MD5->contextsize);
+  if (!ctx)
+    return grub_errno;
+  GRUB_MD_MD5->init (ctx);
+  GRUB_MD_MD5->write (ctx, hash_prefix, sizeof (hash_prefix));
+  GRUB_MD_MD5->write (ctx, &serial, sizeof (serial));
+  GRUB_MD_MD5->final (ctx);
+  xnu_uuid = GRUB_MD_MD5->read (ctx);
+
+  grub_snprintf (uuid_string, sizeof (uuid_string),
+		"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
+		(unsigned int) xnu_uuid[0], (unsigned int) xnu_uuid[1],
+		(unsigned int) xnu_uuid[2], (unsigned int) xnu_uuid[3],
+		(unsigned int) xnu_uuid[4], (unsigned int) xnu_uuid[5],
+		(unsigned int) ((xnu_uuid[6] & 0xf) | 0x30),
+		(unsigned int) xnu_uuid[7],
+		(unsigned int) ((xnu_uuid[8] & 0x3f) | 0x80),
+		(unsigned int) xnu_uuid[9],
+		(unsigned int) xnu_uuid[10], (unsigned int) xnu_uuid[11],
+		(unsigned int) xnu_uuid[12], (unsigned int) xnu_uuid[13],
+		(unsigned int) xnu_uuid[14], (unsigned int) xnu_uuid[15]);
+  if (!low)
+    for (ptr = uuid_string; *ptr; ptr++)
+      *ptr = grub_toupper (*ptr);
+  if (argc == 1)
+    grub_printf ("%s\n", uuid_string);
+  if (argc > 1)
+    grub_env_set (args[1], uuid_string);
+
+  grub_free (ctx);
+
+  return GRUB_ERR_NONE;
+}
+
+static grub_command_t cmd;
+
+
+GRUB_MOD_INIT (xnu_uuid)
+{
+  cmd = grub_register_command ("xnu_uuid", grub_cmd_xnu_uuid,
+			       /* TRANSLATORS: GRUBUUID stands for "filesystem
+				  UUID as used in GRUB".  */
+			       N_("[-l] GRUBUUID [VARNAME]"),
+			       N_("Transform 64-bit UUID to format "
+				  "suitable for XNU. If -l is given keep "
+				  "it lowercase as done by blkid."));
+}
+
+GRUB_MOD_FINI (xnu_uuid)
+{
+  grub_unregister_command (cmd);
+}