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b26f0cf9ee
https://bugzilla.tianocore.org/show_bug.cgi?id=1373 Replace BSD 2-Clause License with BSD+Patent License. This change is based on the following emails: https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html RFCs with detailed process for the license change: V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com>
78 lines
1.8 KiB
C
78 lines
1.8 KiB
C
/** @file
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Save Non-Volatile Variables to a file system.
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Copyright (c) 2009, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "NvVarsFileLib.h"
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#include <Library/DebugLib.h>
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#include <Library/NvVarsFileLib.h>
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EFI_HANDLE mNvVarsFileLibFsHandle = NULL;
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/**
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Attempts to connect the NvVarsFileLib to the specified file system.
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@param[in] FsHandle - Handle for a gEfiSimpleFileSystemProtocolGuid instance
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@return The EFI_STATUS while attempting to connect the NvVarsFileLib
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to the file system instance.
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@retval EFI_SUCCESS - The given file system was connected successfully
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**/
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EFI_STATUS
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EFIAPI
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ConnectNvVarsToFileSystem (
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IN EFI_HANDLE FsHandle
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)
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{
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EFI_STATUS Status;
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//
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// We might fail to load the variable, since the file system initially
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// will not have the NvVars file.
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//
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LoadNvVarsFromFs (FsHandle);
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//
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// We must be able to save the variables successfully to the file system
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// to have connected successfully.
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//
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Status = SaveNvVarsToFs (FsHandle);
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if (!EFI_ERROR (Status)) {
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mNvVarsFileLibFsHandle = FsHandle;
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}
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return Status;
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}
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/**
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Update non-volatile variables stored on the file system.
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@return The EFI_STATUS while attempting to update the variable on
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the connected file system.
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@retval EFI_SUCCESS - The non-volatile variables were saved to the disk
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@retval EFI_NOT_STARTED - A file system has not been connected
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**/
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EFI_STATUS
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EFIAPI
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UpdateNvVarsOnFileSystem (
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)
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{
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if (mNvVarsFileLibFsHandle == NULL) {
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//
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// A file system had not been connected to the library.
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//
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return EFI_NOT_STARTED;
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} else {
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return SaveNvVarsToFs (mNvVarsFileLibFsHandle);
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}
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}
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