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3cbfba02 DW |
1 | /**@file\r |
2 | Defines data structure that is the volume header found.\r | |
3 | These data is intent to decouple FVB driver with FV header.\r | |
4 | \r | |
abbe4e57 | 5 | Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>\r |
3cbfba02 DW |
6 | \r\r |
7 | This program and the accompanying materials are licensed and made available under\r\r | |
8 | the terms and conditions of the BSD License that accompanies this distribution. \r\r | |
9 | The full text of the license may be found at \r\r | |
10 | http://opensource.org/licenses/bsd-license.php. \r\r | |
11 | \r\r | |
12 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r\r | |
13 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r\r | |
14 | \r\r | |
15 | \r | |
16 | **/\r | |
17 | \r | |
18 | #include <PiDxe.h>\r | |
19 | #include <Protocol/FirmwareVolumeBlock.h>\r | |
20 | #include <Library/PcdLib.h>\r | |
21 | #include <Library/DebugLib.h>\r | |
22 | #include <Library/BaseLib.h>\r | |
23 | #include <Guid/FirmwareFileSystem2.h>\r | |
24 | #include <Guid/SystemNvDataGuid.h>\r | |
25 | \r | |
26 | #define FIRMWARE_BLOCK_SIZE 0x8000\r | |
27 | #define FVB_MEDIA_BLOCK_SIZE (FIRMWARE_BLOCK_SIZE * 2)\r | |
28 | \r | |
29 | #define FV_RECOVERY_BASE_ADDRESS FixedPcdGet32(PcdFlashFvRecoveryBase)\r | |
30 | #define RECOVERY_BIOS_BLOCK_NUM (FixedPcdGet32(PcdFlashFvRecoverySize) / FVB_MEDIA_BLOCK_SIZE)\r | |
31 | \r | |
32 | #define FV_MAIN_BASE_ADDRESS FixedPcdGet32(PcdFlashFvMainBase)\r | |
33 | #define MAIN_BIOS_BLOCK_NUM (FixedPcdGet32(PcdFlashFvMainSize) / FVB_MEDIA_BLOCK_SIZE)\r | |
34 | \r | |
35 | #define NV_STORAGE_BASE_ADDRESS FixedPcdGet32(PcdFlashNvStorageVariableBase)\r | |
36 | #define SYSTEM_NV_BLOCK_NUM ((FixedPcdGet32(PcdFlashNvStorageVariableSize)+ FixedPcdGet32(PcdFlashNvStorageFtwWorkingSize) + FixedPcdGet32(PcdFlashNvStorageFtwSpareSize))/ FVB_MEDIA_BLOCK_SIZE)\r | |
37 | \r | |
38 | typedef struct {\r | |
39 | EFI_PHYSICAL_ADDRESS BaseAddress;\r | |
40 | EFI_FIRMWARE_VOLUME_HEADER FvbInfo;\r | |
41 | EFI_FV_BLOCK_MAP_ENTRY End[1];\r | |
42 | } EFI_FVB2_MEDIA_INFO;\r | |
43 | \r | |
44 | //\r | |
45 | // This data structure contains a template of all correct FV headers, which is used to restore\r | |
46 | // Fv header if it's corrupted.\r | |
47 | //\r | |
48 | EFI_FVB2_MEDIA_INFO mPlatformFvbMediaInfo[] = {\r | |
49 | //\r | |
50 | // Main BIOS FVB\r | |
51 | //\r | |
52 | {\r | |
53 | FV_MAIN_BASE_ADDRESS,\r | |
54 | {\r | |
55 | {0,}, //ZeroVector[16]\r | |
56 | EFI_FIRMWARE_FILE_SYSTEM2_GUID,\r | |
57 | FVB_MEDIA_BLOCK_SIZE * MAIN_BIOS_BLOCK_NUM,\r | |
58 | EFI_FVH_SIGNATURE,\r | |
59 | 0x0004feff, // check MdePkg/Include/Pi/PiFirmwareVolume.h for details on EFI_FVB_ATTRIBUTES_2\r | |
60 | sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),\r | |
61 | 0, //CheckSum which will be calucated dynamically.\r | |
62 | 0, //ExtHeaderOffset\r | |
63 | {0,}, //Reserved[1]\r | |
64 | 2, //Revision\r | |
65 | {\r | |
66 | {\r | |
67 | MAIN_BIOS_BLOCK_NUM,\r | |
68 | FVB_MEDIA_BLOCK_SIZE,\r | |
69 | }\r | |
70 | }\r | |
71 | },\r | |
72 | {\r | |
73 | {\r | |
74 | 0,\r | |
75 | 0\r | |
76 | }\r | |
77 | }\r | |
78 | },\r | |
79 | \r | |
80 | //\r | |
81 | // Systen NvStorage FVB\r | |
82 | //\r | |
83 | {\r | |
84 | NV_STORAGE_BASE_ADDRESS,\r | |
85 | {\r | |
86 | {0,}, //ZeroVector[16]\r | |
87 | EFI_SYSTEM_NV_DATA_FV_GUID,\r | |
88 | FVB_MEDIA_BLOCK_SIZE * SYSTEM_NV_BLOCK_NUM,\r | |
89 | EFI_FVH_SIGNATURE,\r | |
90 | 0x0004feff, // check MdePkg/Include/Pi/PiFirmwareVolume.h for details on EFI_FVB_ATTRIBUTES_2\r | |
91 | sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),\r | |
92 | 0, //CheckSum which will be calucated dynamically.\r | |
93 | 0, //ExtHeaderOffset\r | |
94 | {0,}, //Reserved[1]\r | |
95 | 2, //Revision\r | |
96 | {\r | |
97 | {\r | |
98 | SYSTEM_NV_BLOCK_NUM,\r | |
99 | FVB_MEDIA_BLOCK_SIZE,\r | |
100 | }\r | |
101 | }\r | |
102 | },\r | |
103 | {\r | |
104 | {\r | |
105 | 0,\r | |
106 | 0\r | |
107 | }\r | |
108 | }\r | |
109 | },\r | |
110 | \r | |
111 | //\r | |
112 | // Recovery BIOS FVB\r | |
113 | //\r | |
114 | {\r | |
115 | FV_RECOVERY_BASE_ADDRESS,\r | |
116 | {\r | |
117 | {0,}, //ZeroVector[16]\r | |
118 | EFI_FIRMWARE_FILE_SYSTEM2_GUID,\r | |
119 | FVB_MEDIA_BLOCK_SIZE * RECOVERY_BIOS_BLOCK_NUM,\r | |
120 | EFI_FVH_SIGNATURE,\r | |
121 | 0x0004feff, // check MdePkg/Include/Pi/PiFirmwareVolume.h for details on EFI_FVB_ATTRIBUTES_2\r | |
122 | sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),\r | |
123 | 0, //CheckSum which will be calucated dynamically.\r | |
124 | 0, //ExtHeaderOffset\r | |
125 | {0,}, //Reserved[1]\r | |
126 | 2, //Revision\r | |
127 | {\r | |
128 | {\r | |
129 | RECOVERY_BIOS_BLOCK_NUM,\r | |
130 | FVB_MEDIA_BLOCK_SIZE,\r | |
131 | }\r | |
132 | }\r | |
133 | },\r | |
134 | {\r | |
135 | {\r | |
136 | 0,\r | |
137 | 0\r | |
138 | }\r | |
139 | }\r | |
140 | }\r | |
141 | };\r | |
142 | \r | |
143 | EFI_STATUS\r | |
144 | GetFvbInfo (\r | |
145 | IN EFI_PHYSICAL_ADDRESS FvBaseAddress,\r | |
146 | OUT EFI_FIRMWARE_VOLUME_HEADER **FvbInfo\r | |
147 | )\r | |
148 | {\r | |
149 | UINTN Index;\r | |
150 | EFI_FIRMWARE_VOLUME_HEADER *FvHeader;\r | |
151 | \r | |
152 | for (Index = 0; Index < sizeof (mPlatformFvbMediaInfo) / sizeof (EFI_FVB2_MEDIA_INFO); Index += 1) {\r | |
153 | if (mPlatformFvbMediaInfo[Index].BaseAddress == FvBaseAddress) {\r | |
154 | FvHeader = &mPlatformFvbMediaInfo[Index].FvbInfo;\r | |
155 | \r | |
156 | //\r | |
157 | // Update the checksum value of FV header.\r | |
158 | //\r | |
abbe4e57 | 159 | FvHeader->Checksum = CalculateCheckSum16 ((UINT16 *) FvHeader, FvHeader->HeaderLength);\r |
3cbfba02 DW |
160 | \r |
161 | *FvbInfo = FvHeader;\r | |
162 | \r | |
163 | DEBUG ((EFI_D_INFO, "\nBaseAddr: 0x%lx \n", FvBaseAddress));\r | |
164 | DEBUG ((EFI_D_INFO, "FvLength: 0x%lx \n", (*FvbInfo)->FvLength));\r | |
165 | DEBUG ((EFI_D_INFO, "HeaderLength: 0x%x \n", (*FvbInfo)->HeaderLength));\r | |
166 | DEBUG ((EFI_D_INFO, "FvBlockMap[0].NumBlocks: 0x%x \n", (*FvbInfo)->BlockMap[0].NumBlocks));\r | |
167 | DEBUG ((EFI_D_INFO, "FvBlockMap[0].BlockLength: 0x%x \n", (*FvbInfo)->BlockMap[0].Length));\r | |
168 | DEBUG ((EFI_D_INFO, "FvBlockMap[1].NumBlocks: 0x%x \n", (*FvbInfo)->BlockMap[1].NumBlocks));\r | |
169 | DEBUG ((EFI_D_INFO, "FvBlockMap[1].BlockLength: 0x%x \n\n", (*FvbInfo)->BlockMap[1].Length));\r | |
170 | \r | |
171 | return EFI_SUCCESS;\r | |
172 | }\r | |
173 | }\r | |
174 | return EFI_NOT_FOUND;\r | |
175 | }\r |