1 /*++ 2 3 Copyright (c) 1999 - 2006, Intel Corporation. All rights reserved.<BR> 4 This program and the accompanying materials 5 are licensed and made available under the terms and conditions of the BSD License 6 which accompanies this distribution. The full text of the license may be found at 7 http://opensource.org/licenses/bsd-license.php 8 9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 11 12 13 Module Name: 14 15 SmmAccess.h 16 17 Abstract: 18 19 This file defines SMM SMRAM Access abstraction protocol defined 20 by the SMM CIS. 21 22 --*/ 23 24 #ifndef _SMM_ACCESS_H_ 25 #define _SMM_ACCESS_H_ 26 27 #include EFI_GUID_DEFINITION (SmramMemoryReserve) 28 29 EFI_FORWARD_DECLARATION (EFI_SMM_ACCESS_PROTOCOL); 30 31 #define EFI_SMM_ACCESS_PROTOCOL_GUID \ 32 { \ 33 0x3792095a, 0xe309, 0x4c1e, {0xaa, 0x01, 0x85, 0xf5, 0x65, 0x5a, 0x17, 0xf1} \ 34 } 35 36 // 37 // SMM Access specification Data Structures 38 // 39 typedef 40 EFI_STATUS 41 (EFIAPI *EFI_SMM_OPEN) ( 42 IN EFI_SMM_ACCESS_PROTOCOL * This, 43 UINTN DescriptorIndex 44 ); 45 46 typedef 47 EFI_STATUS 48 (EFIAPI *EFI_SMM_CLOSE) ( 49 IN EFI_SMM_ACCESS_PROTOCOL * This, 50 UINTN DescriptorIndex 51 ); 52 53 typedef 54 EFI_STATUS 55 (EFIAPI *EFI_SMM_LOCK) ( 56 IN EFI_SMM_ACCESS_PROTOCOL * This, 57 UINTN DescriptorIndex 58 ); 59 60 typedef 61 EFI_STATUS 62 (EFIAPI *EFI_SMM_CAPABILITIES) ( 63 IN EFI_SMM_ACCESS_PROTOCOL * This, 64 IN OUT UINTN *SmramMapSize, 65 IN OUT EFI_SMRAM_DESCRIPTOR * SmramMap 66 ); 67 68 struct _EFI_SMM_ACCESS_PROTOCOL { 69 EFI_SMM_OPEN Open; 70 EFI_SMM_CLOSE Close; 71 EFI_SMM_LOCK Lock; 72 EFI_SMM_CAPABILITIES GetCapabilities; 73 BOOLEAN LockState; 74 BOOLEAN OpenState; 75 }; 76 77 extern EFI_GUID gEfiSmmAccessProtocolGuid; 78 79 #endif 80
