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1 | /** @file\r |
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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 |
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10 | \r |
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11 | Copyright (c) 2007 - 2009, Intel Corporation\r |
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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 |
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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 |
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28 | //\r |
| 29 | // Share some common definitions with PI SMM\r |
| 30 | //\r |
| 31 | #include <Protocol/SmmAccess2.h>\r |
| 32 | \r |
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33 | #define EFI_SMM_PEI_SMRAM_MEMORY_RESERVE \\r |
| 34 | { \\r |
| 35 | 0x6dadf1d1, 0xd4cc, 0x4910, {0xbb, 0x6e, 0x82, 0xb1, 0xfd, 0x80, 0xff, 0x3d } \\r |
| 36 | }\r |
| 37 | \r |
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38 | /**\r |
| 39 | * GUID specific data structure of HOB for reserving SMRAM regions.\r |
| 40 | *\r |
| 41 | * Inconsistent with specification here: \r |
| 42 | * EFI_HOB_SMRAM_DESCRIPTOR_BLOCK has been changed to EFI_SMRAM_HOB_DESCRIPTOR_BLOCK.\r |
| 43 | * This inconsistency is kept in code in order for backward compatibility.\r |
| 44 | **/\r |
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45 | typedef struct {\r |
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46 | ///\r |
| 47 | /// Designates the number of possible regions in the system\r |
| 48 | /// that can be usable for SMRAM. \r |
| 49 | ///\r |
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50 | UINTN NumberOfSmmReservedRegions;\r |
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51 | ///\r |
| 52 | /// Used throughout this protocol to describe the candidate\r |
| 53 | /// regions for SMRAM that are supported by this platform. \r |
| 54 | ///\r |
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55 | EFI_SMRAM_DESCRIPTOR Descriptor[1];\r |
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56 | } EFI_SMRAM_HOB_DESCRIPTOR_BLOCK;\r |
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57 | \r |
| 58 | extern EFI_GUID gEfiSmmPeiSmramMemoryReserveGuid;\r |
| 59 | \r |
| 60 | #endif\r |
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61 | \r |
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