Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-10 15:14:43 +00:00
Code Issues Projects Releases Packages Wiki Activity

efi: Support showing tables

Browse source 
Add a command (for the app and payload) to display the tables provided
by EFI. Note that for the payload the tables should always be present, so
an error message is unnecessary and would bloat the code.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2023-03-20 08:30:15 +13:00 committed by Heinrich Schuchardt
parent 041840eeeb
commit 1d32eee4fa
3 changed files with 53 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
cmd/Makefile
View file

@ -62,7 +62,7 @@ obj-$(CONFIG_CMD_EXTENSION) += extension_board.o
obj-$(CONFIG_CMD_ECHO) += echo.o
obj-$(CONFIG_ENV_IS_IN_EEPROM) += eeprom.o
obj-$(CONFIG_CMD_EEPROM) += eeprom.o
obj-$(CONFIG_EFI) += efi.o
obj-$(CONFIG_EFI) += efi.o efi_common.o
obj-$(CONFIG_CMD_EFIDEBUG) += efidebug.o efi_common.o
obj-$(CONFIG_CMD_EFICONFIG) += eficonfig.o
ifdef CONFIG_CMD_EFICONFIG

31
cmd/efi.c
View file

@ -7,10 +7,12 @@
#include <common.h>
#include <command.h>
#include <efi.h>
#include <efi_api.h>
#include <errno.h>
#include <log.h>
#include <malloc.h>
#include <sort.h>
#include <uuid.h>
#include <asm/global_data.h>
DECLARE_GLOBAL_DATA_PTR;
@ -273,8 +275,34 @@ done:
return ret ? CMD_RET_FAILURE : 0;
}
static int do_efi_tables(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
struct efi_system_table *systab;
if (IS_ENABLED(CONFIG_EFI_APP)) {
systab = efi_get_sys_table();
if (!systab) {
printf("Cannot read system table\n");
return CMD_RET_FAILURE;
}
} else {
int size;
int ret;
ret = efi_info_get(EFIET_SYS_TABLE, (void **)&systab, &size);
if (ret) /* this should not happen */
return CMD_RET_FAILURE;
}
efi_show_tables(systab);
return 0;
}
static struct cmd_tbl efi_commands[] = {
U_BOOT_CMD_MKENT(mem, 1, 1, do_efi_mem, "", ""),
U_BOOT_CMD_MKENT(tables, 1, 1, do_efi_tables, "", ""),
};
static int do_efi(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
@ -298,5 +326,6 @@ static int do_efi(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
U_BOOT_CMD(
efi, 3, 1, do_efi,
"EFI access",
"mem [all] Dump memory information [include boot services]"
"mem [all] Dump memory information [include boot services]\n"
"tables Dump tables"
);

22
doc/usage/cmd/efi.rst
View file

@ -10,6 +10,7 @@ Synopsis
::
efi mem [all]
efi tables
Description
-----------
@ -54,6 +55,14 @@ Attributes
Shows a code for memory attributes. The key for this is shown below the
table.
efi tables
~~~~~~~~~~
This shows a list of the EFI tables provided in the system table. These use
GUIDs so it is not possible in general to show the name of a table. But some
effort is made to provide a useful table, where the GUID is known by U-Boot.
Example
-------
@ -195,3 +204,16 @@ Example
f: uncached, write-coalescing, write-through, write-back
rf: uncached, write-coalescing, write-through, write-back, needs runtime mapping
1: uncached
=> efi tables
000000001f8edf98 ee4e5898-3914-4259-9d6e-dc7bd79403cf EFI_LZMA_COMPRESSED
000000001ff2ace0 05ad34ba-6f02-4214-952e-4da0398e2bb9 EFI_DXE_SERVICES
000000001f8ea018 7739f24c-93d7-11d4-9a3a-0090273fc14d EFI_HOB_LIST
000000001ff2bac0 4c19049f-4137-4dd3-9c10-8b97a83ffdfa EFI_MEMORY_TYPE
000000001ff2cb10 49152e77-1ada-4764-b7a2-7afefed95e8b (unknown)
000000001f9ac018 060cc026-4c0d-4dda-8f41-595fef00a502 EFI_MEM_STATUS_CODE_REC
000000001f9ab000 eb9d2d31-2d88-11d3-9a16-0090273fc14d SMBIOS table
000000001fb7e000 eb9d2d30-2d88-11d3-9a16-0090273fc14d EFI_GUID_EFI_ACPI1
000000001fb7e014 8868e871-e4f1-11d3-bc22-0080c73c8881 ACPI table
000000001e654018 dcfa911d-26eb-469f-a220-38b7dc461220 (unknown)