diff options
Diffstat (limited to 'OvmfPkg/Library/NvVarsFileLib/NvVarsFileLib.c')
-rw-r--r-- | OvmfPkg/Library/NvVarsFileLib/NvVarsFileLib.c | 166 |
1 files changed, 83 insertions, 83 deletions
diff --git a/OvmfPkg/Library/NvVarsFileLib/NvVarsFileLib.c b/OvmfPkg/Library/NvVarsFileLib/NvVarsFileLib.c index c89bb4a..b597b30 100644 --- a/OvmfPkg/Library/NvVarsFileLib/NvVarsFileLib.c +++ b/OvmfPkg/Library/NvVarsFileLib/NvVarsFileLib.c @@ -1,83 +1,83 @@ -/** @file - Save Non-Volatile Variables to a file system. - - Copyright (c) 2009, Intel Corporation. All rights reserved.<BR> - This program and the accompanying materials - are licensed and made available under the terms and conditions of the BSD License - which accompanies this distribution. The full text of the license may be found at - http://opensource.org/licenses/bsd-license.php - - THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, - WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. - -**/ - -#include "NvVarsFileLib.h" -#include <Library/DebugLib.h> -#include <Library/NvVarsFileLib.h> - -EFI_HANDLE mNvVarsFileLibFsHandle = NULL; - - -/** - 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 - ) -{ - EFI_STATUS Status; - - // - // We might fail to load the variable, since the file system initially - // will not have the NvVars file. - // - LoadNvVarsFromFs (FsHandle); - - // - // We must be able to save the variables successfully to the file system - // to have connected successfully. - // - Status = SaveNvVarsToFs (FsHandle); - if (!EFI_ERROR (Status)) { - mNvVarsFileLibFsHandle = FsHandle; - } - - return Status; -} - - -/** - 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 ( - ) -{ - if (mNvVarsFileLibFsHandle == NULL) { - // - // A file system had not been connected to the library. - // - return EFI_NOT_STARTED; - } else { - return SaveNvVarsToFs (mNvVarsFileLibFsHandle); - } -} - - +/** @file
+ Save Non-Volatile Variables to a file system.
+
+ Copyright (c) 2009, Intel Corporation. All rights reserved.<BR>
+ This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "NvVarsFileLib.h"
+#include <Library/DebugLib.h>
+#include <Library/NvVarsFileLib.h>
+
+EFI_HANDLE mNvVarsFileLibFsHandle = NULL;
+
+
+/**
+ 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
+ )
+{
+ EFI_STATUS Status;
+
+ //
+ // We might fail to load the variable, since the file system initially
+ // will not have the NvVars file.
+ //
+ LoadNvVarsFromFs (FsHandle);
+
+ //
+ // We must be able to save the variables successfully to the file system
+ // to have connected successfully.
+ //
+ Status = SaveNvVarsToFs (FsHandle);
+ if (!EFI_ERROR (Status)) {
+ mNvVarsFileLibFsHandle = FsHandle;
+ }
+
+ return Status;
+}
+
+
+/**
+ 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 (
+ )
+{
+ if (mNvVarsFileLibFsHandle == NULL) {
+ //
+ // A file system had not been connected to the library.
+ //
+ return EFI_NOT_STARTED;
+ } else {
+ return SaveNvVarsToFs (mNvVarsFileLibFsHandle);
+ }
+}
+
+
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