"drivers" command prints all the uefi drivers on the system.
=> efi drivers
Driver Name Image Path
================ ==================== ====================
000000007ef003d0 <NULL> <built-in>
Signed-off-by: AKASHI Takahiro <takahiro.aka...@linaro.org>
---
cmd/efidebug.c | 80 +++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 79 insertions(+), 1 deletion(-)
diff --git a/cmd/efidebug.c b/cmd/efidebug.c
index 8a7f775b117a..1b788c76a895 100644
--- a/cmd/efidebug.c
+++ b/cmd/efidebug.c
@@ -111,6 +111,80 @@ static int do_efi_show_devices(cmd_tbl_t *cmdtp, int flag,
return CMD_RET_SUCCESS;
}
+static int efi_get_driver_handle_info(efi_handle_t handle, u16 **driver_name,
+ u16 **image_path)
+{
+ struct efi_handler *handler;
+ struct efi_loaded_image *image;
+ efi_status_t ret;
+
+ /*
+ * driver name
+ * TODO: support EFI_COMPONENT_NAME2_PROTOCOL
+ */
+ *driver_name = NULL;
+
+ /* image name */
+ ret = efi_search_protocol(handle, &efi_guid_loaded_image, &handler);
+ if (ret != EFI_SUCCESS) {
+ *image_path = NULL;
+ return 0;
+ }
+
+ image = handler->protocol_interface;
+ *image_path = efi_dp_str(image->file_path);
+
+ return 0;
+}
+
+static int do_efi_show_drivers(cmd_tbl_t *cmdtp, int flag,
+ int argc, char * const argv[])
+{
+ efi_handle_t *handles = NULL, *handle;
+ efi_uintn_t size = 0;
+ u16 *driver_name, *image_path_text;
+ efi_status_t ret;
+ int i;
+
+ ret = BS->locate_handle(BY_PROTOCOL, &efi_guid_driver_binding_protocol,
+ NULL, &size, NULL);
+ if (ret == EFI_BUFFER_TOO_SMALL) {
+ handles = calloc(1, size);
+ if (!handles)
+ return CMD_RET_FAILURE;
+
+ ret = BS->locate_handle(BY_PROTOCOL,
+ &efi_guid_driver_binding_protocol,
+ NULL, &size, handles);
+ }
+ if (ret != EFI_SUCCESS) {
+ free(handles);
+ return CMD_RET_FAILURE;
+ }
+
+ printf("Driver%.*s Name Image Path\n",
+ EFI_HANDLE_WIDTH - 6, spc);
+ printf("%.*s ==================== ====================\n",
+ EFI_HANDLE_WIDTH, sep);
+ handle = handles;
+ for (i = 0; i < size / sizeof(*handle); i++) {
+ if (!efi_get_driver_handle_info(*handle, &driver_name,
+ &image_path_text)) {
+ if (image_path_text)
+ printf("%p %-20ls %ls\n",
+ *handle, driver_name, image_path_text);
+ else
+ printf("%p %-20ls <built-in>\n",
+ *handle, driver_name);
+ efi_free_pool(driver_name);
+ efi_free_pool(image_path_text);
+ }
+ handle++;
+ }
+
+ return CMD_RET_SUCCESS;
+}
+
static int do_efi_boot_add(cmd_tbl_t *cmdtp, int flag,
int argc, char * const argv[])
{
@@ -504,6 +578,8 @@ static cmd_tbl_t cmd_efidebug_sub[] = {
U_BOOT_CMD_MKENT(boot, CONFIG_SYS_MAXARGS, 1, do_efi_boot_opt, "", ""),
U_BOOT_CMD_MKENT(devices, CONFIG_SYS_MAXARGS, 1, do_efi_show_devices,
"", ""),
+ U_BOOT_CMD_MKENT(drivers, CONFIG_SYS_MAXARGS, 1, do_efi_show_drivers,
+ "", ""),
};
/* Interpreter command to configure UEFI environment */
@@ -551,7 +627,9 @@ static char efidebug_help_text[] =
" - set/show UEFI boot order\n"
"\n"
"efidebug devices\n"
- " - show uefi devices\n";
+ " - show uefi devices\n"
+ "efidebug drivers\n"
+ " - show uefi drivers\n";
#endif
U_BOOT_CMD(
--
2.19.1
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