1 /* lsefisystab.c - Display EFI systab. */
3 * GRUB -- GRand Unified Bootloader
4 * Copyright (C) 2008 Free Software Foundation, Inc.
6 * GRUB is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * GRUB is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
19 #include <grub/types.h>
22 #include <grub/misc.h>
23 #include <grub/normal.h>
24 #include <grub/charset.h>
25 #include <grub/efi/api.h>
26 #include <grub/efi/efi.h>
28 GRUB_MOD_LICENSE ("GPLv3+");
36 static const struct guid_mapping guid_mappings
[] =
38 { GRUB_EFI_ACPI_20_TABLE_GUID
, "ACPI-2.0"},
39 { GRUB_EFI_ACPI_TABLE_GUID
, "ACPI-1.0"},
40 { GRUB_EFI_CRC32_GUIDED_SECTION_EXTRACTION_GUID
,
41 "CRC32 GUIDED SECTION EXTRACTION"},
42 { GRUB_EFI_DEBUG_IMAGE_INFO_TABLE_GUID
, "DEBUG IMAGE INFO"},
43 { GRUB_EFI_DXE_SERVICES_TABLE_GUID
, "DXE SERVICES"},
44 { GRUB_EFI_HCDP_TABLE_GUID
, "HCDP"}
45 { GRUB_EFI_HOB_LIST_GUID
, "HOB LIST"},
46 { GRUB_EFI_LZMA_CUSTOM_DECOMPRESS_GUID
, "LZMA CUSTOM DECOMPRESS"},
47 { GRUB_EFI_MEMORY_TYPE_INFORMATION_GUID
, "MEMORY TYPE INFO"},
48 { GRUB_EFI_MPS_TABLE_GUID
, "MPS"},
49 { GRUB_EFI_SAL_TABLE_GUID
, "SAL"},
50 { GRUB_EFI_SMBIOS_TABLE_GUID
, "SMBIOS"},
51 { GRUB_EFI_SYSTEM_RESOURCE_TABLE_GUID
, "SYSTEM RESOURCE TABLE"},
52 { GRUB_EFI_TIANO_CUSTOM_DECOMPRESS_GUID
, "TIANO CUSTOM DECOMPRESS"},
53 { GRUB_EFI_TSC_FREQUENCY_GUID
, "TSC FREQUENCY"},
57 grub_cmd_lsefisystab (struct grub_command
*cmd
__attribute__ ((unused
)),
58 int argc
__attribute__ ((unused
)),
59 char **args
__attribute__ ((unused
)))
61 const grub_efi_system_table_t
*st
= grub_efi_system_table
;
62 grub_efi_configuration_table_t
*t
;
65 grub_printf ("Address: %p\n", st
);
66 grub_printf ("Signature: %016" PRIxGRUB_UINT64_T
" revision: %08x\n",
67 st
->hdr
.signature
, st
->hdr
.revision
);
70 grub_uint16_t
*vendor_utf16
;
71 grub_printf ("Vendor: ");
73 for (vendor_utf16
= st
->firmware_vendor
; *vendor_utf16
; vendor_utf16
++);
74 vendor
= grub_malloc (4 * (vendor_utf16
- st
->firmware_vendor
) + 1);
77 *grub_utf16_to_utf8 ((grub_uint8_t
*) vendor
, st
->firmware_vendor
,
78 vendor_utf16
- st
->firmware_vendor
) = 0;
79 grub_printf ("%s", vendor
);
83 grub_printf (", Version=%x\n", st
->firmware_revision
);
85 grub_printf ("%lld tables:\n", (long long) st
->num_table_entries
);
86 t
= st
->configuration_table
;
87 for (i
= 0; i
< st
->num_table_entries
; i
++)
91 grub_printf ("%p ", t
->vendor_table
);
93 grub_printf ("%08x-%04x-%04x-",
94 t
->vendor_guid
.data1
, t
->vendor_guid
.data2
,
95 t
->vendor_guid
.data3
);
96 for (j
= 0; j
< 8; j
++)
97 grub_printf ("%02x", t
->vendor_guid
.data4
[j
]);
99 for (j
= 0; j
< ARRAY_SIZE (guid_mappings
); j
++)
100 if (grub_memcmp (&guid_mappings
[j
].guid
, &t
->vendor_guid
,
101 sizeof (grub_efi_guid_t
)) == 0)
102 grub_printf (" %s", guid_mappings
[j
].name
);
107 return GRUB_ERR_NONE
;
110 static grub_command_t cmd
;
112 GRUB_MOD_INIT(lsefisystab
)
114 cmd
= grub_register_command ("lsefisystab", grub_cmd_lsefisystab
,
115 "", "Display EFI system tables.");
118 GRUB_MOD_FINI(lsefisystab
)
120 grub_unregister_command (cmd
);