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UefiCpuPkg: Add Unblock Region HOB definition

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Add Unblock Region HOB which defines the GUIDed HOB that describes
the memory region to be unblocked in MM environment.

Signed-off-by: Yuanhao Xie <yuanhao.xie@intel.com>
Co-authored-by: Jiaxin Wu <jiaxin.wu@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: Dun Tan <dun.tan@intel.com>
This commit is contained in:
Yuanhao Xie 2024-05-24 14:45:09 +08:00 committed by mergify[bot]
parent 45098bf1b8
commit 21a2c8ae2a
2 changed files with 45 additions and 0 deletions
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42
UefiCpuPkg/Include/Guid/MmUnblockRegion.h Normal file
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@ -0,0 +1,42 @@
/** @file
Defines the GUIDed HOB that describes the memory region to be unblocked in MM environment.
Copyright (c) 2024, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef MM_UNBLOCK_REGION_H_
#define MM_UNBLOCK_REGION_H_
///
/// The GUID of the UnblockRegion GUIDed HOB.
///
#define MM_UNBLOCK_REGION_HOB_GUID \
{ \
0x7c316fb3, 0x849e, 0x4ee7, {0x87, 0xfc, 0x16, 0x2d, 0x0b, 0x03, 0x42, 0xbf } \
}
///
/// The structure defines the data layout of the UnblockRegion GUIDed HOB.
///
typedef struct {
///
/// Physical address of the first byte in the memory region. PhysicalStart must be
/// aligned on a 4 KiB boundary.
///
EFI_PHYSICAL_ADDRESS PhysicalStart;
///
/// Number of 4 KiB pages in the memory region.
///
UINT64 NumberOfPages;
///
/// GUID to identify the memory region.
///
EFI_GUID IdentifierGuid;
} MM_UNBLOCK_REGION;
extern EFI_GUID gMmUnblockRegionHobGuid;
#endif

3
UefiCpuPkg/UefiCpuPkg.dec
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@ -108,6 +108,9 @@
## Include/Guid/GhcbApicIds.h
gGhcbApicIdsGuid = { 0xbc964338, 0xee39, 0x4fc8, { 0xa2, 0x24, 0x10, 0x10, 0x8b, 0x17, 0x80, 0x1b }}
## Include/Guid/MmUnblockRegion.h
gMmUnblockRegionHobGuid = { 0x7c316fb3, 0x849e, 0x4ee7, { 0x87, 0xfc, 0x16, 0x2d, 0x0b, 0x03, 0x42, 0xbf }}
[Protocols]
## Include/Protocol/SmmCpuService.h
gEfiSmmCpuServiceProtocolGuid = { 0x1d202cab, 0xc8ab, 0x4d5c, { 0x94, 0xf7, 0x3c, 0xfc, 0xc0, 0xd3, 0xd3, 0x35 }}