/** @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 |