OvmfPkg: XenHypercallLib: add empty constructor for ARM & AARCH64

[mirror_edk2.git] / OvmfPkg / Include / Library / NvVarsFileLib.h

diff --git a/OvmfPkg/Include/Library/NvVarsFileLib.h b/OvmfPkg/Include/Library/NvVarsFileLib.h
index 63b1642f541dd2d0b139894b29a5ac3c119a9920..a9548678f31e089d669966c14e870dbedadc17c5 100644 (file)
--- a/OvmfPkg/Include/Library/NvVarsFileLib.h
+++ b/OvmfPkg/Include/Library/NvVarsFileLib.h
@@ -1,8 +1,8 @@
 /** @file\r
   Provides functions to save and restore NV variables in a file.\r
 \r
-  Copyright (c) 2009, Intel Corporation<BR>\r
-  All rights reserved. This program and the accompanying materials\r
+  Copyright (c) 2009, Intel Corporation. All rights reserved.<BR>\r
+  This program and the accompanying materials\r
   are licensed and made available under the terms and conditions of the BSD License\r
   which accompanies this distribution.  The full text of the license may be found at\r
   http://opensource.org/licenses/bsd-license.php\r
@@ -31,5 +31,21 @@ ConnectNvVarsToFileSystem (
   IN EFI_HANDLE    FsHandle\r
   );\r
 \r
+\r
+/**\r
+  Update non-volatile variables stored on the file system.\r
+\r
+  @return     The EFI_STATUS while attempting to update the variable on\r
+              the connected file system.\r
+  @retval     EFI_SUCCESS - The non-volatile variables were saved to the disk\r
+  @retval     EFI_NOT_STARTED - A file system has not been connected\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+UpdateNvVarsOnFileSystem (\r
+  );\r
+\r
+\r
 #endif\r
 \r