"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 --- cmd/efitool.c | 103 +++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 102 insertions(+), 1 deletion(-)
diff --git a/cmd/efitool.c b/cmd/efitool.c index 4d46721fbf91..4bd6367b4bd9 100644 --- a/cmd/efitool.c +++ b/cmd/efitool.c @@ -436,6 +436,103 @@ static int do_efi_show_drivers(int argc, char * const argv[]) return CMD_RET_SUCCESS; }
+static struct { + u16 *name; + efi_guid_t guid; +} guid_list[] = { + { + L"Device Path", + DEVICE_PATH_GUID, + }, + { + L"Device Path To Text", + EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID, + }, + { + L"Device Path Utilities", + EFI_DEVICE_PATH_UTILITIES_PROTOCOL_GUID, + }, + { + L"Unicode Collation 2", + EFI_UNICODE_COLLATION_PROTOCOL2_GUID, + }, + { + L"Driver Binding", + EFI_DRIVER_BINDING_PROTOCOL_GUID, + }, + { + L"Simple Text Input", + EFI_SIMPLE_TEXT_INPUT_PROTOCOL_GUID, + }, + { + L"Simple Text Input Ex", + EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL_GUID, + }, + { + L"Simple Text Output", + EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL_GUID, + }, + { + L"Block IO", + BLOCK_IO_GUID, + }, + { + L"Simple File System", + EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID, + }, + { + NULL, + {{0,},}, + }, +}; + +static int do_efi_show_handles(int argc, char * const argv[]) +{ + efi_handle_t *handles; + efi_guid_t **guid; + efi_uintn_t count; + int num, i, j, k; + efi_status_t ret; + + handles = NULL; + num = 0; + if (efi_get_handles_by_proto(NULL, &handles, &num)) + return CMD_RET_FAILURE; + + if (!num) + return CMD_RET_SUCCESS; + + for (i = 0; i < num; i++) { + printf("%16p:", handles[i]); + ret = BS->protocols_per_handle(handles[i], &guid, &count); + if (ret || !count) { + putc('\n'); + continue; + } + + for (j = 0; j < count; j++) { + for (k = 0; guid_list[k].name; k++) + if (!guidcmp(&guid_list[k].guid, guid[j])) + break; + + if (j) + printf(", "); + else + putc(' '); + + if (guid[j]) + printf("%ls", guid_list[k].name); + else + printf("%pUl", guid[j]); + } + putc('\n'); + } + + free(handles); + + return CMD_RET_SUCCESS; +} + static int do_efi_boot_add(int argc, char * const argv[]) { int id; @@ -847,6 +944,8 @@ static int do_efitool(cmd_tbl_t *cmdtp, int flag, return do_efi_show_devices(argc, argv); else if (!strcmp(command, "drivers")) return do_efi_show_drivers(argc, argv); + else if (!strcmp(command, "dh")) + return do_efi_show_handles(argc, argv); else return CMD_RET_USAGE; } @@ -875,7 +974,9 @@ static char efitool_help_text[] = "efitool devices\n" " - show uefi devices\n" "efitool drivers\n" - " - show uefi drivers\n"; + " - show uefi drivers\n" + "efitool dh\n" + " - show uefi handles\n"; #endif
U_BOOT_CMD(