| /** @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 |