faf2c63b4a
This library is used to abstract microcode flash region access. This library is consumed by a microcode capsule update module. Cc: Jeff Fan <jeff.fan@intel.com> Cc: Feng Tian <feng.tian@intel.com> Cc: Star Zeng <star.zeng@intel.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Cc: Liming Gao <liming.gao@intel.com> Cc: Chao Zhang <chao.b.zhang@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jiewen Yao <jiewen.yao@intel.com> Reviewed-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>
40 lines
1.3 KiB
C
40 lines
1.3 KiB
C
/** @file
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Microcode flash device access library.
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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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#ifndef __MICROCODE_FLASH_ACCESS_LIB_H__
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#define __MICROCODE_FLASH_ACCESS_LIB_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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#endif
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