/** @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
