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d1102dba 1/** @file\r
3e02ebb2 2 This file defines NvDataFv GUID and FTW working block structures.\r
d1102dba 3 The NvDataFv GUID can be used as FileSystemGuid in EFI_FIRMWARE_VOLUME_HEADER if\r
6426c8ff 4 this FV image contains NV data, such as NV variable data.\r
3e02ebb2 5 This file also defines WorkingBlockSignature GUID for FTW working block signature.\r
504214c4 6\r
d1102dba
LG
7Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
8This program and the accompanying materials are licensed and made available under\r
9the terms and conditions of the BSD License that accompanies this distribution.\r
64a80549 10The full text of the license may be found at\r
d1102dba 11http://opensource.org/licenses/bsd-license.php.\r
64a80549 12\r
d1102dba
LG
13THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
14WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
88f20127 15\r
504214c4 16**/\r
88f20127 17\r
18#ifndef __SYSTEM_NV_DATA_GUID_H__\r
19#define __SYSTEM_NV_DATA_GUID_H__\r
20\r
21#define EFI_SYSTEM_NV_DATA_FV_GUID \\r
22 {0xfff12b8d, 0x7696, 0x4c8b, {0xa9, 0x85, 0x27, 0x47, 0x7, 0x5b, 0x4f, 0x50} }\r
23\r
3e02ebb2
SZ
24#define EDKII_WORKING_BLOCK_SIGNATURE_GUID \\r
25 {0x9e58292b, 0x7c68, 0x497d, {0xa0, 0xce, 0x65, 0x0, 0xfd, 0x9f, 0x1b, 0x95} }\r
26\r
5c526736 27extern EFI_GUID gEfiSystemNvDataFvGuid;\r
3e02ebb2 28extern EFI_GUID gEdkiiWorkingBlockSignatureGuid;\r
88f20127 29\r
5c526736
LG
30#define WORKING_BLOCK_VALID 0x1\r
31#define WORKING_BLOCK_INVALID 0x2\r
ebafc55b
LG
32\r
33///\r
64a80549 34/// The EDKII Fault tolerant working block header.\r
5c526736 35/// The header is immediately followed by the write queue data.\r
ebafc55b 36///\r
5c526736
LG
37typedef struct {\r
38 ///\r
3e02ebb2
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39 /// FTW working block signature.\r
40 /// Its value has be updated from gEfiSystemNvDataFvGuid to gEdkiiWorkingBlockSignatureGuid,\r
41 /// because its write queue data format has been updated to support the crossing archs.\r
5c526736
LG
42 ///\r
43 EFI_GUID Signature;\r
44 ///\r
e50a226b 45 /// 32bit CRC calculated for this header.\r
5c526736
LG
46 ///\r
47 UINT32 Crc;\r
48 ///\r
64a80549 49 /// Working block valid bit.\r
5c526736
LG
50 ///\r
51 UINT8 WorkingBlockValid : 1;\r
52 UINT8 WorkingBlockInvalid : 1;\r
53 UINT8 Reserved : 6;\r
54 UINT8 Reserved3[3];\r
55 ///\r
56 /// Total size of the following write queue range.\r
57 ///\r
58 UINT64 WriteQueueSize;\r
59 ///\r
64a80549 60 /// Write Queue data.\r
3e02ebb2
SZ
61 ///\r
62 /// EFI_FAULT_TOLERANT_WRITE_HEADER FtwHeader;\r
63 /// EFI_FAULT_TOLERANT_WRITE_RECORD FtwRecord[FtwHeader.NumberOfWrites]\r
64 /// EFI_FAULT_TOLERANT_WRITE_HEADER FtwHeader2;\r
65 /// EFI_FAULT_TOLERANT_WRITE_RECORD FtwRecord2[FtwHeader2.NumberOfWrites]\r
66 /// ...\r
abe31ad5 67 ///\r
68} EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER;\r
88f20127 69\r
3e02ebb2
SZ
70#define FTW_VALID_STATE 0\r
71#define FTW_INVALID_STATE 1\r
72\r
73//\r
74// EFI Fault tolerant block update write queue entry.\r
75//\r
76typedef struct {\r
77 UINT8 HeaderAllocated : 1;\r
78 UINT8 WritesAllocated : 1;\r
79 UINT8 Complete : 1;\r
80 UINT8 Reserved : 5;\r
81 EFI_GUID CallerId;\r
82 UINT64 NumberOfWrites;\r
83 UINT64 PrivateDataSize;\r
84} EFI_FAULT_TOLERANT_WRITE_HEADER;\r
85\r
86//\r
87// EFI Fault tolerant block update write queue record.\r
88//\r
89typedef struct {\r
90 UINT8 BootBlockUpdate : 1;\r
91 UINT8 SpareComplete : 1;\r
92 UINT8 DestinationComplete : 1;\r
93 UINT8 Reserved : 5;\r
94 EFI_LBA Lba;\r
95 UINT64 Offset;\r
96 UINT64 Length;\r
97 //\r
98 // Relative offset to spare block.\r
99 //\r
100 INT64 RelativeOffset;\r
101 //\r
102 // UINT8 PrivateData[PrivateDataSize]\r
103 //\r
104} EFI_FAULT_TOLERANT_WRITE_RECORD;\r
105\r
106#define FTW_RECORD_SIZE(PrivateDataSize) (sizeof (EFI_FAULT_TOLERANT_WRITE_RECORD) + (UINTN) PrivateDataSize)\r
107\r
108#define FTW_RECORD_TOTAL_SIZE(NumberOfWrites, PrivateDataSize) \\r
109 ((UINTN) (NumberOfWrites) * (sizeof (EFI_FAULT_TOLERANT_WRITE_RECORD) + (UINTN) PrivateDataSize))\r
110\r
111#define FTW_WRITE_TOTAL_SIZE(NumberOfWrites, PrivateDataSize) \\r
112 ( \\r
113 sizeof (EFI_FAULT_TOLERANT_WRITE_HEADER) + (UINTN) (NumberOfWrites) * \\r
114 (sizeof (EFI_FAULT_TOLERANT_WRITE_RECORD) + (UINTN) PrivateDataSize) \\r
115 )\r
116\r
88f20127 117#endif\r