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* [PATCH] MdePkg: Add PI 1.5 SmramMemoryReserve HOB file
@ 2019-07-26 10:12 Marc W Chen
  2019-07-29  7:49 ` Liming Gao
  0 siblings, 1 reply; 3+ messages in thread
From: Marc W Chen @ 2019-07-26 10:12 UTC (permalink / raw)
  To: devel; +Cc: Michael D Kinney, Liming Gao, Ray Ni

This is a special GUID extension Hob to describe SMRAM memory regions

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2020
Signed-off-by: Marc W Chen <marc.w.chen@intel.com>
---
 MdePkg/Include/Guid/SmramMemoryReserve.h | 45 ++++++++++++++++++++++++++++++++
 MdePkg/MdePkg.dec                        |  3 +++
 2 files changed, 48 insertions(+)
 create mode 100644 MdePkg/Include/Guid/SmramMemoryReserve.h

diff --git a/MdePkg/Include/Guid/SmramMemoryReserve.h b/MdePkg/Include/Guid/SmramMemoryReserve.h
new file mode 100644
index 0000000000..9bb4925711
--- /dev/null
+++ b/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 _EFI_SMRAM_MEMORY_RESERVE_H_
+#define _EFI_SMRAM_MEMORY_RESERVE_H_
+
+#define EFI_SMRAM_MEMORY_RESERVE_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 gEfiSmramMemoryReserveGuid;
+
+#endif
+
diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec
index b382efd578..5cc12886fa 100644
--- a/MdePkg/MdePkg.dec
+++ b/MdePkg/MdePkg.dec
@@ -749,6 +749,9 @@
   ## Include/Guid/GraphicsInfoHob.h
   gEfiGraphicsDeviceInfoHobGuid     = { 0xe5cb2ac9, 0xd35d, 0x4430, { 0x93, 0x6e, 0x1d, 0xe3, 0x32, 0x47, 0x8d, 0xe7 }}
 
+  ## Include/Guid/SmramMemoryReserve.h
+  gEfiSmramMemoryReserveGuid     = { 0x6dadf1d1, 0xd4cc, 0x4910, { 0xbb, 0x6e, 0x82, 0xb1, 0xfd, 0x80, 0xff, 0x3d }}
+
   #
   # GUID defined in PI1.6
   #
-- 
2.16.2.windows.1


^ permalink raw reply related	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2019-07-29  7:57 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2019-07-26 10:12 [PATCH] MdePkg: Add PI 1.5 SmramMemoryReserve HOB file Marc W Chen
2019-07-29  7:49 ` Liming Gao
2019-07-29  7:56   ` Marc W Chen

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