69 lines
1.7 KiB
C
69 lines
1.7 KiB
C
/** @file
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Definitions for loading microcode on processors.
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Copyright (c) 2015, 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 _CPU_MICROCODE_H_
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#define _CPU_MICROCODE_H_
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#define EFI_MSR_IA32_PLATFORM_ID 0x17
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#define EFI_MSR_IA32_BIOS_UPDT_TRIG 0x79
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#define EFI_MSR_IA32_BIOS_SIGN_ID 0x8b
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#define MAX_MICROCODE_DESCRIPTOR_LENGTH 100
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typedef struct {
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VOID *MicrocodeData;
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UINTN MicrocodeSize;
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UINT32 ProcessorId;
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BOOLEAN Load;
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} MICROCODE_INFO;
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//
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// Definition for IA32 microcode format
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//
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typedef struct {
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UINT32 HeaderVersion;
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UINT32 UpdateRevision;
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UINT32 Date;
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UINT32 ProcessorId;
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UINT32 Checksum;
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UINT32 LoaderRevision;
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UINT32 ProcessorFlags;
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UINT32 DataSize;
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UINT32 TotalSize;
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UINT8 Reserved[12];
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} EFI_CPU_MICROCODE_HEADER;
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typedef struct {
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UINT32 ExtendedSignatureCount;
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UINT32 ExtendedTableChecksum;
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UINT8 Reserved[12];
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} EFI_CPU_MICROCODE_EXTENDED_TABLE_HEADER;
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typedef struct {
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UINT32 ProcessorSignature;
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UINT32 ProcessorFlag;
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UINT32 ProcessorChecksum;
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} EFI_CPU_MICROCODE_EXTENDED_TABLE;
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/**
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Detect whether specified processor can find matching microcode patch and load it.
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**/
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VOID
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MicrocodeDetect (
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VOID
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);
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#endif
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