| | 1 | /** @file\r |
| | 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 |
| | 10 | \r |
| | 11 | Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>\r |
| | 12 | This program and the accompanying materials are licensed and made available under\r |
| | 13 | the terms and conditions of the BSD License that accompanies this distribution.\r |
| | 14 | 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 |
| | 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 |
| | 33 | /**\r |
| | 34 | * GUID specific data structure of HOB for reserving SMRAM regions.\r |
| | 35 | *\r |
| | 36 | * Inconsistent with specification here:\r |
| | 37 | * EFI_HOB_SMRAM_DESCRIPTOR_BLOCK has been changed to EFI_SMRAM_HOB_DESCRIPTOR_BLOCK.\r |
| | 38 | * This inconsistency is kept in code in order for backward compatibility.\r |
| | 39 | **/\r |
| | 40 | typedef struct {\r |
| | 41 | ///\r |
| | 42 | /// Designates the number of possible regions in the system\r |
| | 43 | /// that can be usable for SMRAM.\r |
| | 44 | ///\r |
| | 45 | /// Inconsistent with specification here:\r |
| | 46 | /// In Framework SMM CIS 0.91 specification, it defines the field type as UINTN.\r |
| | 47 | /// However, HOBs are supposed to be CPU neutral, so UINT32 should be used instead.\r |
| | 48 | ///\r |
| | 49 | UINT32 NumberOfSmmReservedRegions;\r |
| | 50 | ///\r |
| | 51 | /// Used throughout this protocol to describe the candidate\r |
| | 52 | /// regions for SMRAM that are supported by this platform.\r |
| | 53 | ///\r |
| | 54 | EFI_SMRAM_DESCRIPTOR Descriptor[1];\r |
| | 55 | } EFI_SMRAM_HOB_DESCRIPTOR_BLOCK;\r |
| | 56 | \r |
| | 57 | extern EFI_GUID gEfiSmmPeiSmramMemoryReserveGuid;\r |
| | 58 | \r |
| | 59 | #endif\r |
| | 60 | \r |
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