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UefiCpuPkg: Add MM CPU Sync Config definitions

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MM CPU Sync Config controls how BSP synchronizes with APs in x86
SMM environment.

Signed-off-by: Jiaxin Wu <jiaxin.wu@intel.com>
Cc: Dun Tan <dun.tan@intel.com>
Co-authored-by: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Hongbin1 Zhang <hongbin1.zhang@intel.com>
Cc: Wei6 Xu <wei6.xu@intel.com>
Cc: Yuanhao Xie <yuanhao.xie@intel.com>
This commit is contained in:
Jiaxin Wu 2024-05-24 15:17:59 +08:00 committed by mergify[bot]
parent 2c5d329e20
commit 39d9e15a9e
2 changed files with 56 additions and 0 deletions
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53
UefiCpuPkg/Include/Guid/MmCpuSyncConfig.h Normal file
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@ -0,0 +1,53 @@
/** @file
This file defines MM_CPU_SYNC_CONFIG which controls how BSP synchronizes with APs
in x86 SMM environment.
Copyright (c) 2024, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef MM_CPU_SYNC_CONFIG_H_
#define MM_CPU_SYNC_CONFIG_H_
///
/// The GUID of the MmCpuSyncConfig GUIDed HOB.
///
#define MM_CPU_SYNC_CONFIG_HOB_GUID \
{ \
0x8b90bd26, 0xe4f9, 0x45c2, {0x92, 0xa2, 0x9e, 0xac, 0xe6, 0x0e, 0x9d, 0xcc} \
}
typedef enum {
MmCpuSyncModeTradition,
MmCpuSyncModeRelaxedAp,
MmCpuSyncModeMax
} MM_CPU_SYNC_MODE;
///
/// The structure defines the data layout of the MmCpuSyncConfig GUIDed HOB.
///
typedef struct {
///
/// 0: Traditional CPU synchronization method is used when processing an SMI.
/// 1: Relaxed CPU synchronization method is used when processing an SMI.
///
MM_CPU_SYNC_MODE RelaxedApMode;
///
/// The 1st BSP/AP synchronization timeout value in SMM.
/// The value shall match with the PcdCpuSmmApSyncTimeout.
///
UINT64 Timeout;
///
/// The 2nd BSP/AP synchronization timeout value in SMM.
/// The value shall match with the PcdCpuSmmApSyncTimeout2.
///
UINT64 Timeout2;
} MM_CPU_SYNC_CONFIG;
extern EFI_GUID gMmCpuSyncConfigHobGuid;
#endif

3
UefiCpuPkg/UefiCpuPkg.dec
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@ -114,6 +114,9 @@
## Include/Guid/MmProfileData.h
gMmProfileDataHobGuid = { 0x26ef081d, 0x19b0, 0x4c42, { 0xa2, 0x57, 0xa7, 0xf5, 0x9f, 0x8b, 0xd0, 0x38 }}
## Include/Guid/MmCpuSyncConfig.h
gMmCpuSyncConfigHobGuid = { 0x8b90bd26, 0xe4f9, 0x45c2, { 0x92, 0xa2, 0x9e, 0xac, 0xe6, 0x0e, 0x9d, 0xcc }}
[Protocols]
## Include/Protocol/SmmCpuService.h
gEfiSmmCpuServiceProtocolGuid = { 0x1d202cab, 0xc8ab, 0x4d5c, { 0x94, 0xf7, 0x3c, 0xfc, 0xc0, 0xd3, 0xd3, 0x35 }}