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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>
43 lines
1.0 KiB
C
43 lines
1.0 KiB
C
/** @file
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Defines the GUIDed HOB that describes the memory region to be unblocked in MM 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_UNBLOCK_REGION_H_
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#define MM_UNBLOCK_REGION_H_
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///
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/// The GUID of the UnblockRegion GUIDed HOB.
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///
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#define MM_UNBLOCK_REGION_HOB_GUID \
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{ \
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0x7c316fb3, 0x849e, 0x4ee7, {0x87, 0xfc, 0x16, 0x2d, 0x0b, 0x03, 0x42, 0xbf } \
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}
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///
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/// The structure defines the data layout of the UnblockRegion GUIDed HOB.
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///
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typedef struct {
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///
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/// Physical address of the first byte in the memory region. PhysicalStart must be
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/// aligned on a 4 KiB boundary.
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///
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EFI_PHYSICAL_ADDRESS PhysicalStart;
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///
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/// Number of 4 KiB pages in the memory region.
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///
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UINT64 NumberOfPages;
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///
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/// GUID to identify the memory region.
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///
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EFI_GUID IdentifierGuid;
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} MM_UNBLOCK_REGION;
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extern EFI_GUID gMmUnblockRegionHobGuid;
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#endif
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