efi_loader: Allow reporting the host defaults

Add an 'efidebug filename' command to report the default filename and
PXE architecture.

Signed-off-by: Simon Glass <sjg@chromium.org>

diff --git a/cmd/efidebug.c b/cmd/efidebug.c
index e040fe75fa1cbcdd2c2ef6f4862bb2fe42ded0aa..02f1e080e88051fcad647486c614d7e847e449a3 100644 (file)
--- a/cmd/efidebug.c
+++ b/cmd/efidebug.c
@@ -511,6 +511,27 @@ static int do_efi_show_images(struct cmd_tbl *cmdtp, int flag,
        return CMD_RET_SUCCESS;
 }
 
+/**
+ * do_efi_show_defaults() - show UEFI default filename and PXE architecture
+ *
+ * @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 "defaults" sub-command.
+ * Shows the default EFI filename and PXE architecture
+ */
+static int do_efi_show_defaults(struct cmd_tbl *cmdtp, int flag,
+                               int argc, char *const argv[])
+{
+       printf("Default boot path: EFI\\BOOT\\%s\n", efi_get_basename());
+       printf("PXE arch: 0x%02x\n", efi_get_pxe_arch());
+
+       return CMD_RET_SUCCESS;
+}
+
 static const char * const efi_mem_type_string[] = {
        [EFI_RESERVED_MEMORY_TYPE] = "RESERVED",
        [EFI_LOADER_CODE] = "LOADER CODE",
@@ -1561,6 +1582,8 @@ static struct cmd_tbl cmd_efidebug_sub[] = {
                         "", ""),
        U_BOOT_CMD_MKENT(dh, CONFIG_SYS_MAXARGS, 1, do_efi_show_handles,
                         "", ""),
+       U_BOOT_CMD_MKENT(defaults, CONFIG_SYS_MAXARGS, 1, do_efi_show_defaults,
+                        "", ""),
        U_BOOT_CMD_MKENT(images, CONFIG_SYS_MAXARGS, 1, do_efi_show_images,
                         "", ""),
        U_BOOT_CMD_MKENT(memmap, CONFIG_SYS_MAXARGS, 1, do_efi_show_memmap,
@@ -1653,6 +1676,8 @@ U_BOOT_LONGHELP(efidebug,
        "  - show UEFI drivers\n"
        "efidebug dh\n"
        "  - show UEFI handles\n"
+       "efidebug defaults\n"
+       "  - show default EFI filename and PXE architecture\n"
        "efidebug images\n"
        "  - show loaded images\n"
        "efidebug memmap\n"