Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-10 23:24:38 +00:00
Code Issues Projects Releases Packages Wiki Activity

cmd: efidebug: add dh command

Browse source 
"dh" command prints all the uefi handles used in the system.

=> efi dh
        7ef3bfa0: Device Path, Device Path To Text, Device Path Utilities,
		  Unicode Collation 2
        7ef31d30: Driver Binding
        7ef31da0: Simple Text Output
        7ef31e10: Simple Text Input, Simple Text Input Ex
        7ef3cca0: Block IO, Device Path
        7ef3d070: Block IO, Device Path
        7ef3d1b0: Block IO, Device Path, Simple File System
        7ef3d3e0: Block IO, Device Path, Simple File System

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
AKASHI Takahiro 2019-02-25 15:54:41 +09:00 committed by Heinrich Schuchardt
parent 66eaf56648
commit a80146205d
1 changed files with 141 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

142
cmd/efidebug.c
View file

@ -179,6 +179,142 @@ static int do_efi_show_drivers(cmd_tbl_t *cmdtp, int flag,
return CMD_RET_SUCCESS;
}
static const struct {
const char *text;
const efi_guid_t guid;
} guid_list[] = {
{
"Device Path",
DEVICE_PATH_GUID,
},
{
"Device Path To Text",
EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID,
},
{
"Device Path Utilities",
EFI_DEVICE_PATH_UTILITIES_PROTOCOL_GUID,
},
{
"Unicode Collation 2",
EFI_UNICODE_COLLATION_PROTOCOL2_GUID,
},
{
"Driver Binding",
EFI_DRIVER_BINDING_PROTOCOL_GUID,
},
{
"Simple Text Input",
EFI_SIMPLE_TEXT_INPUT_PROTOCOL_GUID,
},
{
"Simple Text Input Ex",
EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL_GUID,
},
{
"Simple Text Output",
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL_GUID,
},
{
"Block IO",
BLOCK_IO_GUID,
},
{
"Simple File System",
EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID,
},
{
"Loaded Image",
LOADED_IMAGE_PROTOCOL_GUID,
},
{
"GOP",
EFI_GOP_GUID,
},
};
/**
* get_guid_text - get string of protocol guid
* @guid: Protocol guid
* Return: String
*
* Return string for display to represent the protocol.
*/
static const char *get_guid_text(const efi_guid_t *guid)
{
int i;
for (i = 0; i < ARRAY_SIZE(guid_list); i++)
if (!guidcmp(&guid_list[i].guid, guid))
break;
if (i != ARRAY_SIZE(guid_list))
return guid_list[i].text;
else
return NULL;
}
/**
* do_efi_show_handles() - show UEFI handles
*
* @cmdtp: Command table
* @flag: Command flag
* @argc: Number of arguments
* @argv: Argument array
* Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
*
* Implement efidebug "dh" sub-command.
* Show all UEFI handles and their information, currently all protocols
* added to handle.
*/
static int do_efi_show_handles(cmd_tbl_t *cmdtp, int flag,
int argc, char * const argv[])
{
efi_handle_t *handles;
efi_guid_t **guid;
efi_uintn_t num, count, i, j;
const char *guid_text;
efi_status_t ret;
ret = EFI_CALL(BS->locate_handle_buffer(ALL_HANDLES, NULL, NULL,
&num, &handles));
if (ret != EFI_SUCCESS)
return CMD_RET_FAILURE;
if (!num)
return CMD_RET_SUCCESS;
printf("Handle%.*s Protocols\n", EFI_HANDLE_WIDTH - 6, spc);
printf("%.*s ====================\n", EFI_HANDLE_WIDTH, sep);
for (i = 0; i < num; i++) {
printf("%p", handles[i]);
ret = EFI_CALL(BS->protocols_per_handle(handles[i], &guid,
&count));
if (ret || !count) {
putc('\n');
continue;
}
for (j = 0; j < count; j++) {
if (j)
printf(", ");
else
putc(' ');
guid_text = get_guid_text(guid[j]);
if (guid_text)
puts(guid_text);
else
printf("%pUl", guid[j]);
}
putc('\n');
}
EFI_CALL(BS->free_pool(handles));
return CMD_RET_SUCCESS;
}
/**
* do_efi_boot_add() - set UEFI load option
*
@ -685,6 +821,8 @@ static cmd_tbl_t cmd_efidebug_sub[] = {
"", ""),
U_BOOT_CMD_MKENT(drivers, CONFIG_SYS_MAXARGS, 1, do_efi_show_drivers,
"", ""),
U_BOOT_CMD_MKENT(dh, CONFIG_SYS_MAXARGS, 1, do_efi_show_handles,
"", ""),
};
/**
@ -747,7 +885,9 @@ static char efidebug_help_text[] =
"efidebug devices\n"
" - show uefi devices\n"
"efidebug drivers\n"
" - show uefi drivers\n";
" - show uefi drivers\n"
"efidebug dh\n"
" - show uefi handles\n";
#endif
U_BOOT_CMD(