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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>
54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
/** @file
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This file defines MM_CPU_SYNC_CONFIG which controls how BSP synchronizes with APs
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in x86 SMM environment.
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Copyright (c) 2024, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef MM_CPU_SYNC_CONFIG_H_
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#define MM_CPU_SYNC_CONFIG_H_
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///
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/// The GUID of the MmCpuSyncConfig GUIDed HOB.
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///
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#define MM_CPU_SYNC_CONFIG_HOB_GUID \
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{ \
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0x8b90bd26, 0xe4f9, 0x45c2, {0x92, 0xa2, 0x9e, 0xac, 0xe6, 0x0e, 0x9d, 0xcc} \
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}
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typedef enum {
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MmCpuSyncModeTradition,
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MmCpuSyncModeRelaxedAp,
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MmCpuSyncModeMax
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} MM_CPU_SYNC_MODE;
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///
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/// The structure defines the data layout of the MmCpuSyncConfig GUIDed HOB.
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///
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typedef struct {
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///
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/// 0: Traditional CPU synchronization method is used when processing an SMI.
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/// 1: Relaxed CPU synchronization method is used when processing an SMI.
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///
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MM_CPU_SYNC_MODE RelaxedApMode;
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///
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/// The 1st BSP/AP synchronization timeout value in SMM.
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/// The value shall match with the PcdCpuSmmApSyncTimeout.
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///
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UINT64 Timeout;
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///
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/// The 2nd BSP/AP synchronization timeout value in SMM.
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/// The value shall match with the PcdCpuSmmApSyncTimeout2.
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///
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UINT64 Timeout2;
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} MM_CPU_SYNC_CONFIG;
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extern EFI_GUID gMmCpuSyncConfigHobGuid;
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#endif
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