efi_loader: export initialization state

Export the UEFI sub-system initialization state. This will allow to treat
the setting of UEFI variables during and after initialization differently.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>

include/efi_loader.h

@@ -56,6 +56,9 @@ static inline void *guidcpy(void *dst, const void *src)
 /* Root node */
 extern efi_handle_t efi_root;
 
+/* Set to EFI_SUCCESS when initialized */
+extern efi_status_t efi_obj_list_initialized;
+
 /* EFI system partition */
 extern struct efi_system_partition {
 	enum if_type if_type;

lib/efi_loader/efi_setup.c

@@ -11,7 +11,7 @@
 
 #define OBJ_LIST_NOT_INITIALIZED 1
 
-static efi_status_t efi_obj_list_initialized = OBJ_LIST_NOT_INITIALIZED;
+efi_status_t efi_obj_list_initialized = OBJ_LIST_NOT_INITIALIZED;
 
 /*
  * Allow unaligned memory access.