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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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