Reviewed-by: Liming Gao <liming....@intel.com> > -----Original Message----- > From: Chen, Marc W > Sent: Monday, July 29, 2019 4:41 PM > To: devel@edk2.groups.io > Cc: Kinney, Michael D <michael.d.kin...@intel.com>; Gao, Liming > <liming....@intel.com>; Ni, Ray <ray...@intel.com> > Subject: [PATCH V3] 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.kin...@intel.com> > Cc: Liming Gao <liming....@intel.com> > Cc: Ray Ni <ray...@intel.com> > Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2020 > Signed-off-by: Marc W Chen <marc.w.c...@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..47320f3621 > --- /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 _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 > + > diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec > index b382efd578..15a221d71f 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 > + gEfiSmmSmramMemoryGuid = { 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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