[edk2-devel] [PATCH] MdePkg: Add PI 1.5 SmramMemoryReserve HOB file
Liming Gao
liming.gao at intel.com
Mon Jul 29 07:49:50 UTC 2019
Marc:
In PI spec 1.6, I see the guid macro is defined as EFI_SMM_SMRAM_MEMORY_GUID.
Why you define it as EFI_SMRAM_MEMORY_RESERVE_GUID?
Thanks
Liming
>-----Original Message-----
>From: Chen, Marc W
>Sent: Friday, July 26, 2019 6:13 PM
>To: devel at edk2.groups.io
>Cc: Kinney, Michael D <michael.d.kinney at intel.com>; Gao, Liming
><liming.gao at intel.com>; Ni, Ray <ray.ni at intel.com>
>Subject: [PATCH] MdePkg: Add PI 1.5 SmramMemoryReserve HOB file
>
>This is a special GUID extension Hob to describe SMRAM memory regions
>
>Cc: Michael D Kinney <michael.d.kinney at intel.com>
>Cc: Liming Gao <liming.gao at intel.com>
>Cc: Ray Ni <ray.ni at intel.com>
>Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2020
>Signed-off-by: Marc W Chen <marc.w.chen at 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
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