]>
Commit | Line | Data |
---|---|---|
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 | |
28 | #define EFI_SMM_PEI_SMRAM_MEMORY_RESERVE \\r | |
29 | { \\r | |
30 | 0x6dadf1d1, 0xd4cc, 0x4910, {0xbb, 0x6e, 0x82, 0xb1, 0xfd, 0x80, 0xff, 0x3d } \\r | |
31 | }\r | |
32 | \r | |
444bf90d | 33 | ///\r |
34 | /// Describes the candidate regions for SMRAM that are\r | |
35 | /// supported by this platform.\r | |
36 | ///\r | |
79964ac8 | 37 | typedef struct {\r |
444bf90d | 38 | EFI_PHYSICAL_ADDRESS PhysicalStart; ///< Designates the physical address of the SMRAM in memory.\r |
39 | EFI_PHYSICAL_ADDRESS CpuStart; ///< Designates the address of the SMRAM, as seen by software executing on the processors. \r | |
40 | UINT64 PhysicalSize; ///< Describes the number of bytes in the SMRAM region.\r | |
41 | UINT64 RegionState; ///< Describes the accessibility attributes of the SMRAM.\r | |
79964ac8 | 42 | } EFI_SMRAM_DESCRIPTOR;\r |
43 | \r | |
ab6fc27a | 44 | ///\r |
45 | /// Definition of SMRAM states, used as value for EFI_SMRAM_DESCRIPTOR.RegionState.\r | |
46 | ///@{\r | |
79964ac8 | 47 | #define EFI_SMRAM_OPEN 0x00000001\r |
48 | #define EFI_SMRAM_CLOSED 0x00000002\r | |
49 | #define EFI_SMRAM_LOCKED 0x00000004\r | |
50 | #define EFI_CACHEABLE 0x00000008\r | |
51 | #define EFI_ALLOCATED 0x00000010\r | |
ab6fc27a | 52 | ///@}\r |
79964ac8 | 53 | \r |
ab6fc27a | 54 | /**\r |
55 | * GUID specific data structure of HOB for reserving SMRAM regions.\r | |
56 | *\r | |
57 | * Inconsistent with specification here: \r | |
58 | * EFI_HOB_SMRAM_DESCRIPTOR_BLOCK has been changed to EFI_SMRAM_HOB_DESCRIPTOR_BLOCK.\r | |
59 | * This inconsistency is kept in code in order for backward compatibility.\r | |
60 | **/\r | |
79964ac8 | 61 | typedef struct {\r |
444bf90d | 62 | ///\r |
63 | /// Designates the number of possible regions in the system\r | |
64 | /// that can be usable for SMRAM. \r | |
65 | ///\r | |
79964ac8 | 66 | UINTN NumberOfSmmReservedRegions;\r |
444bf90d | 67 | ///\r |
68 | /// Used throughout this protocol to describe the candidate\r | |
69 | /// regions for SMRAM that are supported by this platform. \r | |
70 | ///\r | |
79964ac8 | 71 | EFI_SMRAM_DESCRIPTOR Descriptor[1];\r |
a5baf845 | 72 | } EFI_SMRAM_HOB_DESCRIPTOR_BLOCK;\r |
79964ac8 | 73 | \r |
74 | extern EFI_GUID gEfiSmmPeiSmramMemoryReserveGuid;\r | |
75 | \r | |
76 | #endif\r | |
ab6fc27a | 77 | \r |