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Last change
on this file since 108794 was 108794, checked in by vboxsync, 2 weeks ago |
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Devices/EFI/FirmwareNew: Merge edk2-stable202502 from the vendor branch and make it build for the important platforms, bugref:4643
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| 1 | /** @file
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| 2 | This file defines MM_CPU_SYNC_CONFIG which controls how BSP synchronizes with APs
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| 3 | in x86 SMM environment.
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| 4 |
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| 5 | Copyright (c) 2024, Intel Corporation. All rights reserved.<BR>
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| 6 |
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| 7 | SPDX-License-Identifier: BSD-2-Clause-Patent
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| 8 |
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| 9 | **/
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| 10 |
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| 11 | #ifndef MM_CPU_SYNC_CONFIG_H_
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| 12 | #define MM_CPU_SYNC_CONFIG_H_
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| 13 |
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| 14 | ///
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| 15 | /// The GUID of the MmCpuSyncConfig GUIDed HOB.
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| 16 | ///
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| 17 | #define MM_CPU_SYNC_CONFIG_HOB_GUID \
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| 18 | { \
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| 19 | 0x8b90bd26, 0xe4f9, 0x45c2, {0x92, 0xa2, 0x9e, 0xac, 0xe6, 0x0e, 0x9d, 0xcc} \
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| 20 | }
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| 21 |
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| 22 | typedef enum {
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| 23 | MmCpuSyncModeTradition,
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| 24 | MmCpuSyncModeRelaxedAp,
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| 25 | MmCpuSyncModeMax
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| 26 | } MM_CPU_SYNC_MODE;
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| 27 |
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| 28 | ///
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| 29 | /// The structure defines the data layout of the MmCpuSyncConfig GUIDed HOB.
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| 30 | ///
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| 31 | typedef struct {
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| 32 | ///
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| 33 | /// 0: Traditional CPU synchronization method is used when processing an SMI.
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| 34 | /// 1: Relaxed CPU synchronization method is used when processing an SMI.
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| 35 | ///
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| 36 | MM_CPU_SYNC_MODE RelaxedApMode;
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| 37 |
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| 38 | ///
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| 39 | /// The 1st BSP/AP synchronization timeout value in SMM.
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| 40 | /// The value shall match with the PcdCpuSmmApSyncTimeout.
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| 41 | ///
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| 42 | UINT64 Timeout;
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| 43 |
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| 44 | ///
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| 45 | /// The 2nd BSP/AP synchronization timeout value in SMM.
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| 46 | /// The value shall match with the PcdCpuSmmApSyncTimeout2.
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| 47 | ///
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| 48 | UINT64 Timeout2;
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| 49 | } MM_CPU_SYNC_CONFIG;
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| 50 |
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| 51 | extern EFI_GUID gMmCpuSyncConfigHobGuid;
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| 52 |
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| 53 | #endif
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