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/** @file
The microcode patch HOB is used to store the information of:
A. Base address and size of the loaded microcode patches data;
B. Detected microcode patch for each processor within system.
Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _MICROCODE_PATCH_HOB_H_
#define _MICROCODE_PATCH_HOB_H_
extern EFI_GUID gEdkiiMicrocodePatchHobGuid;
//
// The EDKII microcode patch HOB will be produced by MpInitLib and it can be
// consumed by modules that want to detect/apply microcode patches.
//
typedef struct {
//
// The base address of the microcode patches data after being loaded into
// memory.
//
UINT64 MicrocodePatchAddress;
//
// The total size of the loaded microcode patches.
//
UINT64 MicrocodePatchRegionSize;
//
// The number of processors within the system.
//
UINT32 ProcessorCount;
//
// An array with 'ProcessorCount' elements that stores the offset (with
// regard to 'MicrocodePatchAddress') of the detected microcode patch
// (including the CPU_MICROCODE_HEADER data structure) for each processor.
// If no microcode patch is detected for certain processor, the relating
// element will be set to MAX_UINT64.
//
UINT64 ProcessorSpecificPatchOffset[0];
} EDKII_MICROCODE_PATCH_HOB;
#endif
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