bootstd: Make efi_mgr bootmeth work for non-sandbox setups

Enable the bootflow based on this bootmeth if the BootOrder EFI variable is set. Signed-off-by: Mark Kettenis <[email protected]> Reviewed-by: Simon Glass <[email protected]>
omniosorg · Nov 1, 2023 · f2bfa0c · f2bfa0c
1 parent 073bf4a
commit f2bfa0c
Showing 1 changed file with 16 additions and 1 deletion.
diff --git a/boot/bootmeth_efi_mgr.c b/boot/bootmeth_efi_mgr.c
@@ -14,6 +14,8 @@
 #include <bootmeth.h>
 #include <command.h>
 #include <dm.h>
+#include <efi_loader.h>
+#include <efi_variable.h>
 
 /**
  * struct efi_mgr_priv - private info for the efi-mgr driver
@@ -46,13 +48,26 @@ static int efi_mgr_check(struct udevice *dev, struct bootflow_iter *iter)
 static int efi_mgr_read_bootflow(struct udevice *dev, struct bootflow *bflow)
 {
 	struct efi_mgr_priv *priv = dev_get_priv(dev);
+	efi_status_t ret;
+	efi_uintn_t size;
+	u16 *bootorder;
 
 	if (priv->fake_dev) {
 		bflow->state = BOOTFLOWST_READY;
 		return 0;
 	}
 
-	/* To be implemented */
+	ret = efi_init_obj_list();
+	if (ret)
+		return log_msg_ret("init", ret);
+
+	/* Enable this method if the "BootOrder" UEFI exists. */
+	bootorder = efi_get_var(u"BootOrder", &efi_global_variable_guid,
+				&size);
+	if (bootorder) {
+		bflow->state = BOOTFLOWST_READY;
+		return 0;
+	}
 
 	return -EINVAL;
 }