1 files changed, 45 insertions, 0 deletions
diff --git a/roms/edk2/OvmfPkg/Include/Library/NvVarsFileLib.h b/roms/edk2/OvmfPkg/Include/Library/NvVarsFileLib.h
new file mode 100644
index 000000000..1b924be32
--- /dev/null
+++ b/roms/edk2/OvmfPkg/Include/Library/NvVarsFileLib.h
@@ -0,0 +1,45 @@
+/** @file
+  Provides functions to save and restore NV variables in a file.
+
+  Copyright (c) 2009, Intel Corporation. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef __NV_VARS_FILE_LIB__
+#define __NV_VARS_FILE_LIB__
+
+/**
+  Attempts to connect the NvVarsFileLib to the specified file system.
+
+  @param[in]  FsHandle - Handle for a gEfiSimpleFileSystemProtocolGuid instance
+
+  @return     The EFI_STATUS while attempting to connect the NvVarsFileLib
+              to the file system instance.
+  @retval     EFI_SUCCESS - The given file system was connected successfully
+
+**/
+EFI_STATUS
+EFIAPI
+ConnectNvVarsToFileSystem (
+  IN EFI_HANDLE    FsHandle
+  );
+
+
+/**
+  Update non-volatile variables stored on the file system.
+
+  @return     The EFI_STATUS while attempting to update the variable on
+              the connected file system.
+  @retval     EFI_SUCCESS - The non-volatile variables were saved to the disk
+  @retval     EFI_NOT_STARTED - A file system has not been connected
+
+**/
+EFI_STATUS
+EFIAPI
+UpdateNvVarsOnFileSystem (
+  );
+
+
+#endif
+