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949f388f 1/*++ @file\r
2 Defines data structure that is the volume header found.These data is intent\r
3 to decouple FVB driver with FV header.\r
4\r
5Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r
6Portions copyright (c) 2011, Apple Inc. All rights reserved.\r
d18d8a1d 7This program and the accompanying materials\r
8are licensed and made available under the terms and conditions of the BSD License\r
9which accompanies this distribution. The full text of the license may be found at\r
10http://opensource.org/licenses/bsd-license.php\r
11\r
12THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
13WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
949f388f 14\r
15\r
16**/\r
17\r
18#include <PiDxe.h>\r
19\r
20#include <Guid/EventGroup.h>\r
21#include <Guid/FirmwareFileSystem2.h>\r
22#include <Guid/SystemNvDataGuid.h>\r
23\r
24#include <Protocol/FirmwareVolumeBlock.h>\r
25#include <Protocol/DevicePath.h>\r
26\r
27#include <Library/UefiLib.h>\r
28#include <Library/UefiDriverEntryPoint.h>\r
29#include <Library/BaseLib.h>\r
30#include <Library/DxeServicesTableLib.h>\r
31#include <Library/UefiRuntimeLib.h>\r
32#include <Library/DebugLib.h>\r
33#include <Library/HobLib.h>\r
34#include <Library/BaseMemoryLib.h>\r
35#include <Library/MemoryAllocationLib.h>\r
36#include <Library/UefiBootServicesTableLib.h>\r
37#include <Library/PcdLib.h>\r
38#include <Library/DevicePathLib.h>\r
39\r
40\r
41typedef struct {\r
42 UINT64 FvLength;\r
43 EFI_FIRMWARE_VOLUME_HEADER FvbInfo;\r
44 //\r
45 // EFI_FV_BLOCK_MAP_ENTRY ExtraBlockMap[n];//n=0\r
46 //\r
47 EFI_FV_BLOCK_MAP_ENTRY End[1];\r
48} EFI_FVB_MEDIA_INFO;\r
49\r
50EFI_FVB_MEDIA_INFO mPlatformFvbMediaInfo[] = {\r
51 //\r
52 // Recovery BOIS FVB\r
53 //\r
54 {\r
55 FixedPcdGet32 (PcdEmuFlashFvRecoverySize),\r
56 {\r
57 {\r
58 0,\r
59 }, // ZeroVector[16]\r
60 EFI_FIRMWARE_FILE_SYSTEM2_GUID,\r
61 FixedPcdGet32 (PcdEmuFlashFvRecoverySize),\r
62 EFI_FVH_SIGNATURE,\r
63 EFI_FVB2_READ_ENABLED_CAP |\r
64 EFI_FVB2_READ_STATUS |\r
65 EFI_FVB2_WRITE_ENABLED_CAP |\r
66 EFI_FVB2_WRITE_STATUS |\r
67 EFI_FVB2_ERASE_POLARITY,\r
68 sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),\r
69 0, // CheckSum\r
70 0, // ExtHeaderOffset\r
71 {\r
72 0,\r
73 }, // Reserved[1]\r
74 2, // Revision\r
75 {\r
76 {\r
77 FixedPcdGet32 (PcdEmuFlashFvRecoverySize)/FixedPcdGet32 (PcdEmuFirmwareBlockSize),\r
78 FixedPcdGet32 (PcdEmuFirmwareBlockSize),\r
79 }\r
80 }\r
81 },\r
82 {\r
83 {\r
84 0,\r
85 0\r
86 }\r
87 }\r
88 },\r
89 //\r
90 // Systen NvStorage FVB\r
91 //\r
92 {\r
93 FixedPcdGet32 (PcdFlashNvStorageVariableSize) + \\r
94 FixedPcdGet32 (PcdFlashNvStorageFtwWorkingSize) + \\r
95 FixedPcdGet32 (PcdFlashNvStorageFtwSpareSize) + \\r
96 FixedPcdGet32 (PcdEmuFlashNvStorageEventLogSize),\r
97 {\r
98 {\r
99 0,\r
100 }, // ZeroVector[16]\r
101 EFI_SYSTEM_NV_DATA_FV_GUID,\r
102 FixedPcdGet32 (PcdFlashNvStorageVariableSize) + \\r
103 FixedPcdGet32 (PcdFlashNvStorageFtwWorkingSize) + \\r
104 FixedPcdGet32 (PcdFlashNvStorageFtwSpareSize) + \\r
105 FixedPcdGet32 (PcdEmuFlashNvStorageEventLogSize),\r
106 EFI_FVH_SIGNATURE,\r
107 EFI_FVB2_READ_ENABLED_CAP |\r
108 EFI_FVB2_READ_STATUS |\r
109 EFI_FVB2_WRITE_ENABLED_CAP |\r
110 EFI_FVB2_WRITE_STATUS |\r
111 EFI_FVB2_ERASE_POLARITY,\r
112 sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),\r
113 0, // CheckSum\r
114 0, // ExtHeaderOffset\r
115 {\r
116 0,\r
117 }, // Reserved[1]\r
118 2, // Revision\r
119 {\r
120 {\r
121 (FixedPcdGet32 (PcdFlashNvStorageVariableSize) + \\r
122 FixedPcdGet32 (PcdFlashNvStorageFtwWorkingSize) + \\r
123 FixedPcdGet32 (PcdFlashNvStorageFtwSpareSize) + \\r
124 FixedPcdGet32 (PcdEmuFlashNvStorageEventLogSize)) / FixedPcdGet32 (PcdEmuFirmwareBlockSize),\r
125 FixedPcdGet32 (PcdEmuFirmwareBlockSize),\r
126 }\r
127 }\r
128 },\r
129 {\r
130 {\r
131 0,\r
132 0\r
133 }\r
134 }\r
135 }\r
136};\r
137\r
138EFI_STATUS\r
139GetFvbInfo (\r
140 IN UINT64 FvLength,\r
141 OUT EFI_FIRMWARE_VOLUME_HEADER **FvbInfo\r
142 )\r
143{\r
144 UINTN Index;\r
145\r
146 for (Index = 0; Index < sizeof (mPlatformFvbMediaInfo) / sizeof (EFI_FVB_MEDIA_INFO); Index += 1) {\r
147 if (mPlatformFvbMediaInfo[Index].FvLength == FvLength) {\r
148 *FvbInfo = &mPlatformFvbMediaInfo[Index].FvbInfo;\r
149 return EFI_SUCCESS;\r
150 }\r
151 }\r
152\r
153 return EFI_NOT_FOUND;\r
154}\r