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1 | /** @file\r |
2 | This is a special GUID extension Hob to describe SMRAM memory regions.\r | |
3 | \r | |
4 | This file defines:\r | |
5 | * the GUID used to identify the GUID HOB for reserving SMRAM regions.\r | |
6 | * the data structure of SMRAM descriptor to describe SMRAM candidate regions\r | |
7 | * values of state of SMRAM candidate regions\r | |
8 | * the GUID specific data structure of HOB for reserving SMRAM regions.\r | |
9 | \r | |
10 | Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>\r | |
11 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
12 | \r | |
13 | @par Revision Reference:\r | |
14 | GUIDs defined in PI SPEC version 1.5.\r | |
15 | \r | |
16 | **/\r | |
17 | \r | |
18 | #ifndef _SMRAM_MEMORY_RESERVE_H_\r | |
19 | #define _SMRAM_MEMORY_RESERVE_H_\r | |
20 | \r | |
21 | #define EFI_SMM_SMRAM_MEMORY_GUID \\r | |
22 | { \\r | |
23 | 0x6dadf1d1, 0xd4cc, 0x4910, {0xbb, 0x6e, 0x82, 0xb1, 0xfd, 0x80, 0xff, 0x3d } \\r | |
24 | }\r | |
25 | \r | |
26 | /**\r | |
27 | * The GUID extension hob is to describe SMRAM memory regions supported by the platform.\r | |
28 | **/\r | |
29 | typedef struct {\r | |
30 | ///\r | |
31 | /// Designates the number of possible regions in the system\r | |
32 | /// that can be usable for SMRAM.\r | |
33 | ///\r | |
34 | UINT32 NumberOfSmmReservedRegions;\r | |
35 | ///\r | |
36 | /// Used throughout this protocol to describe the candidate\r | |
37 | /// regions for SMRAM that are supported by this platform.\r | |
38 | ///\r | |
39 | EFI_SMRAM_DESCRIPTOR Descriptor[1];\r | |
40 | } EFI_SMRAM_HOB_DESCRIPTOR_BLOCK;\r | |
41 | \r | |
42 | extern EFI_GUID gEfiSmmSmramMemoryGuid;\r | |
43 | \r | |
44 | #endif\r | |
45 | \r |