diff --git a/sdk/xtdk/bltypes.h b/sdk/xtdk/bltypes.h
index 8093122..9a4d9a0 100644
--- a/sdk/xtdk/bltypes.h
+++ b/sdk/xtdk/bltypes.h
@@ -42,6 +42,7 @@ typedef EFI_STATUS (*PBL_FREE_PAGES)(IN UINT64 Size, IN EFI_PHYSICAL_ADDRESS Mem
 typedef EFI_STATUS (*PBL_FREE_POOL)(IN PVOID Memory);
 typedef EFI_STATUS (*PBL_OPEN_VOLUME)(IN PEFI_DEVICE_PATH_PROTOCOL DevicePath, OUT PEFI_HANDLE DiskHandle, OUT PEFI_FILE_HANDLE *FsHandle);
 typedef EFI_STATUS (*PBL_OPEN_XT_PROTOCOL)(OUT PVOID *ProtocolHandler, IN PEFI_GUID ProtocolGuid);
+typedef EFI_STATUS (*PBL_READ_FILE)(IN PEFI_FILE_HANDLE DirHandle, IN CONST PWCHAR FileName, OUT PVOID *FileData, OUT PSIZE_T FileSize);
 typedef VOID (*PBL_SLEEP_EXECUTION)(IN ULONG_PTR Milliseconds);
 
 /* XTLDR Configuration data */
@@ -78,6 +79,12 @@ typedef struct _XTBL_LOADER_PROTOCOL
         PBL_DEBUG_PRINT Print;
     } Debug;
     struct
+    {
+        PBL_CLOSE_VOLUME CloseVolume;
+        PBL_OPEN_VOLUME OpenVolume;
+        PBL_READ_FILE ReadFile;
+    } Disk;
+    struct
     {
         PBL_ALLOCATE_PAGES AllocatePages;
         PBL_ALLOCATE_POOL AllocatePool;
@@ -93,11 +100,6 @@ typedef struct _XTBL_LOADER_PROTOCOL
         PBL_EXIT_BOOT_SERVICES ExitBootServices;
         PBL_SLEEP_EXECUTION SleepExecution;
     } Util;
-    struct
-    {
-        PBL_CLOSE_VOLUME Close;
-        PBL_OPEN_VOLUME Open;
-    } Volume;
 } XTBL_LOADER_PROTOCOL, *PXTBL_LOADER_PROTOCOL;
 
 #endif /* __XTDK_BMTYPES_H */