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79964ac8 | 1 | /** @file\r |
444bf90d | 2 | Definition of GUIDed HOB for reserving SMRAM 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 | This GUIDed HOB can be used to convey the existence of the T-SEG reservation and H-SEG usage\r | |
79964ac8 | 10 | \r |
2bbaeb0d | 11 | Copyright (c) 2007 - 2009, Intel Corporation\r |
79964ac8 | 12 | All rights reserved. This program and the accompanying materials\r |
13 | are licensed and made available under the terms and conditions of the BSD License\r | |
14 | which accompanies this distribution. The full text of the license may be found at\r | |
15 | http://opensource.org/licenses/bsd-license.php\r | |
16 | \r | |
17 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
18 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
19 | \r | |
79964ac8 | 20 | @par Revision Reference:\r |
21 | GUIDs defined in SmmCis spec version 0.9\r | |
22 | \r | |
23 | **/\r | |
24 | \r | |
25 | #ifndef _EFI_SMM_PEI_SMRAM_MEMORY_RESERVE_H_\r | |
26 | #define _EFI_SMM_PEI_SMRAM_MEMORY_RESERVE_H_\r | |
27 | \r | |
b80fbe85 | 28 | #include <PiPei.h>\r |
29 | \r | |
79964ac8 | 30 | #define EFI_SMM_PEI_SMRAM_MEMORY_RESERVE \\r |
31 | { \\r | |
32 | 0x6dadf1d1, 0xd4cc, 0x4910, {0xbb, 0x6e, 0x82, 0xb1, 0xfd, 0x80, 0xff, 0x3d } \\r | |
33 | }\r | |
34 | \r | |
444bf90d | 35 | ///\r |
36 | /// Describes the candidate regions for SMRAM that are\r | |
37 | /// supported by this platform.\r | |
38 | ///\r | |
79964ac8 | 39 | typedef struct {\r |
444bf90d | 40 | EFI_PHYSICAL_ADDRESS PhysicalStart; ///< Designates the physical address of the SMRAM in memory.\r |
41 | EFI_PHYSICAL_ADDRESS CpuStart; ///< Designates the address of the SMRAM, as seen by software executing on the processors. \r | |
42 | UINT64 PhysicalSize; ///< Describes the number of bytes in the SMRAM region.\r | |
43 | UINT64 RegionState; ///< Describes the accessibility attributes of the SMRAM.\r | |
79964ac8 | 44 | } EFI_SMRAM_DESCRIPTOR;\r |
45 | \r | |
46 | //\r | |
444bf90d | 47 | // Definition of SMRAM states, used as value for EFI_SMRAM_DESCRIPTOR.RegionState.\r |
79964ac8 | 48 | //\r |
49 | #define EFI_SMRAM_OPEN 0x00000001\r | |
50 | #define EFI_SMRAM_CLOSED 0x00000002\r | |
51 | #define EFI_SMRAM_LOCKED 0x00000004\r | |
52 | #define EFI_CACHEABLE 0x00000008\r | |
53 | #define EFI_ALLOCATED 0x00000010\r | |
79964ac8 | 54 | \r |
444bf90d | 55 | ///\r |
56 | /// GUID specific data structure of HOB for reserving SMRAM regions.\r | |
57 | ///\r | |
79964ac8 | 58 | typedef struct {\r |
444bf90d | 59 | ///\r |
60 | /// Designates the number of possible regions in the system\r | |
61 | /// that can be usable for SMRAM. \r | |
62 | ///\r | |
79964ac8 | 63 | UINTN NumberOfSmmReservedRegions;\r |
444bf90d | 64 | ///\r |
65 | /// Used throughout this protocol to describe the candidate\r | |
66 | /// regions for SMRAM that are supported by this platform. \r | |
67 | ///\r | |
79964ac8 | 68 | EFI_SMRAM_DESCRIPTOR Descriptor[1];\r |
444bf90d | 69 | } EFI_HOB_SMRAM_DESCRIPTOR_BLOCK;\r |
79964ac8 | 70 | \r |
71 | extern EFI_GUID gEfiSmmPeiSmramMemoryReserveGuid;\r | |
72 | \r | |
73 | #endif\r |