Implement NvVarsFileLib to save and restore non-volatile variables using a file.

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

diff --git a/OvmfPkg/Include/Library/NvVarsFileLib.h b/OvmfPkg/Include/Library/NvVarsFileLib.h
new file mode 100644 (file)
index 0000000..63b1642
--- /dev/null
+++ b/OvmfPkg/Include/Library/NvVarsFileLib.h
@@ -0,0 +1,35 @@
+/** @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
+  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
+\r
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#ifndef __NV_VARS_FILE_LIB__\r
+#define __NV_VARS_FILE_LIB__\r
+\r
+/**\r
+  Attempts to connect the NvVarsFileLib to the specified file system.\r
+\r
+  @param[in]  FsHandle - Handle for a gEfiSimpleFileSystemProtocolGuid instance\r
+\r
+  @return     The EFI_STATUS while attempting to connect the NvVarsFileLib\r
+              to the file system instance.\r
+  @retval     EFI_SUCCESS - The given file system was connected successfully\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+ConnectNvVarsToFileSystem (\r
+  IN EFI_HANDLE    FsHandle\r
+  );\r
+\r
+#endif\r
+\r