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 <kettenis@openbsd.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/boot/bootmeth_efi_mgr.c b/boot/bootmeth_efi_mgr.c
index e9d9734..e6c42d4 100644
--- 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_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;
}