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/* 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);
}
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