1 files changed, 126 insertions, 0 deletions
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);
+}