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