mirror of https://github.com/acidanthera/audk.git
43 lines
1.4 KiB
C
43 lines
1.4 KiB
C
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/** @file
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Microcode flash device access library NULL instance.
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Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <PiDxe.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/MicrocodeFlashAccessLib.h>
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/**
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Perform microcode write opreation.
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@param[in] FlashAddress The address of flash device to be accessed.
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@param[in] Buffer The pointer to the data buffer.
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@param[in] Length The length of data buffer in bytes.
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@retval EFI_SUCCESS The operation returns successfully.
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@retval EFI_WRITE_PROTECTED The flash device is read only.
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@retval EFI_UNSUPPORTED The flash device access is unsupported.
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@retval EFI_INVALID_PARAMETER The input parameter is not valid.
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**/
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EFI_STATUS
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EFIAPI
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MicrocodeFlashWrite (
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IN EFI_PHYSICAL_ADDRESS FlashAddress,
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IN VOID *Buffer,
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IN UINTN Length
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)
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{
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CopyMem((VOID *)(UINTN)(FlashAddress), Buffer, Length);
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return EFI_SUCCESS;
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}
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