diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/MdePkg/Include/Guid/SmramMemoryReserve.h | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/MdePkg/Include/Guid/SmramMemoryReserve.h')
| -rw-r--r-- | roms/edk2/MdePkg/Include/Guid/SmramMemoryReserve.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/roms/edk2/MdePkg/Include/Guid/SmramMemoryReserve.h b/roms/edk2/MdePkg/Include/Guid/SmramMemoryReserve.h new file mode 100644 index 000000000..47320f362 --- /dev/null +++ b/roms/edk2/MdePkg/Include/Guid/SmramMemoryReserve.h @@ -0,0 +1,45 @@ +/** @file
+ This is a special GUID extension Hob to describe SMRAM memory regions.
+
+ This file defines:
+ * the GUID used to identify the GUID HOB for reserving SMRAM regions.
+ * the data structure of SMRAM descriptor to describe SMRAM candidate regions
+ * values of state of SMRAM candidate regions
+ * the GUID specific data structure of HOB for reserving SMRAM regions.
+
+ Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+ @par Revision Reference:
+ GUIDs defined in PI SPEC version 1.5.
+
+**/
+
+#ifndef _SMRAM_MEMORY_RESERVE_H_
+#define _SMRAM_MEMORY_RESERVE_H_
+
+#define EFI_SMM_SMRAM_MEMORY_GUID \
+ { \
+ 0x6dadf1d1, 0xd4cc, 0x4910, {0xbb, 0x6e, 0x82, 0xb1, 0xfd, 0x80, 0xff, 0x3d } \
+ }
+
+/**
+* The GUID extension hob is to describe SMRAM memory regions supported by the platform.
+**/
+typedef struct {
+ ///
+ /// Designates the number of possible regions in the system
+ /// that can be usable for SMRAM.
+ ///
+ UINT32 NumberOfSmmReservedRegions;
+ ///
+ /// Used throughout this protocol to describe the candidate
+ /// regions for SMRAM that are supported by this platform.
+ ///
+ EFI_SMRAM_DESCRIPTOR Descriptor[1];
+} EFI_SMRAM_HOB_DESCRIPTOR_BLOCK;
+
+extern EFI_GUID gEfiSmmSmramMemoryGuid;
+
+#endif
+
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