diff options
| author | Jiaxin Wu <jiaxin.wu@intel.com> | 2024-05-24 15:17:59 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2024-08-28 15:25:27 +0000 |
| commit | 39d9e15a9ed47ca3a72c06d4279c390869fd2793 (patch) | |
| tree | 195138de8e910357a3872352ee4f794fc0b447a5 /UefiCpuPkg/Include | |
| parent | 2c5d329e20f0a50af58c572af332825f8cb40ad5 (diff) | |
| download | edk2-39d9e15a9ed47ca3a72c06d4279c390869fd2793.tar.gz edk2-39d9e15a9ed47ca3a72c06d4279c390869fd2793.tar.bz2 edk2-39d9e15a9ed47ca3a72c06d4279c390869fd2793.zip | |
UefiCpuPkg: Add MM CPU Sync Config definitions
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>
Diffstat (limited to 'UefiCpuPkg/Include')
| -rw-r--r-- | UefiCpuPkg/Include/Guid/MmCpuSyncConfig.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/UefiCpuPkg/Include/Guid/MmCpuSyncConfig.h b/UefiCpuPkg/Include/Guid/MmCpuSyncConfig.h new file mode 100644 index 0000000000..16d96a8290 --- /dev/null +++ b/UefiCpuPkg/Include/Guid/MmCpuSyncConfig.h @@ -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
|