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Commit | Line | Data |
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a4ce9ffd JJ |
1 | /**@file\r |
2 | \r | |
ea0d111e | 3 | Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>\r |
141f0c64 | 4 | \r |
b26f0cf9 | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
a4ce9ffd | 6 | \r |
ea0d111e | 7 | Module Name:\r |
a4ce9ffd | 8 | \r |
ea0d111e | 9 | FvbInfo.c\r |
a4ce9ffd | 10 | \r |
ea0d111e LE |
11 | Abstract:\r |
12 | \r | |
13 | Defines data structure that is the volume header found.These data is intent\r | |
14 | to decouple FVB driver with FV header.\r | |
a4ce9ffd JJ |
15 | \r |
16 | **/\r | |
17 | \r | |
18 | //\r | |
19 | // The package level header files this module uses\r | |
20 | //\r | |
0f2eb31c LE |
21 | #include <Pi/PiFirmwareVolume.h>\r |
22 | \r | |
a4ce9ffd | 23 | //\r |
a2e75595 | 24 | // The protocols, PPI and GUID definitions for this module\r |
a4ce9ffd | 25 | //\r |
a4ce9ffd | 26 | #include <Guid/SystemNvDataGuid.h>\r |
a4ce9ffd JJ |
27 | //\r |
28 | // The Library classes this module consumes\r | |
29 | //\r | |
a4ce9ffd | 30 | #include <Library/BaseLib.h>\r |
a4ce9ffd JJ |
31 | #include <Library/PcdLib.h>\r |
32 | \r | |
33 | typedef struct {\r | |
ac0a286f MK |
34 | UINT64 FvLength;\r |
35 | EFI_FIRMWARE_VOLUME_HEADER FvbInfo;\r | |
a4ce9ffd JJ |
36 | //\r |
37 | // EFI_FV_BLOCK_MAP_ENTRY ExtraBlockMap[n];//n=0\r | |
38 | //\r | |
ac0a286f | 39 | EFI_FV_BLOCK_MAP_ENTRY End[1];\r |
a4ce9ffd JJ |
40 | } EFI_FVB_MEDIA_INFO;\r |
41 | \r | |
42 | EFI_FVB_MEDIA_INFO mPlatformFvbMediaInfo[] = {\r | |
43 | //\r | |
a2e75595 | 44 | // System NvStorage FVB\r |
a4ce9ffd JJ |
45 | //\r |
46 | {\r | |
47 | FixedPcdGet32 (PcdFlashNvStorageVariableSize) +\r | |
48 | FixedPcdGet32 (PcdFlashNvStorageFtwWorkingSize) +\r | |
49 | FixedPcdGet32 (PcdFlashNvStorageFtwSpareSize) +\r | |
50 | FixedPcdGet32 (PcdOvmfFlashNvStorageEventLogSize),\r | |
51 | {\r | |
52 | {\r | |
53 | 0,\r | |
54 | }, // ZeroVector[16]\r | |
55 | EFI_SYSTEM_NV_DATA_FV_GUID,\r | |
56 | FixedPcdGet32 (PcdFlashNvStorageVariableSize) +\r | |
57 | FixedPcdGet32 (PcdFlashNvStorageFtwWorkingSize) +\r | |
58 | FixedPcdGet32 (PcdFlashNvStorageFtwSpareSize) +\r | |
59 | FixedPcdGet32 (PcdOvmfFlashNvStorageEventLogSize),\r | |
60 | EFI_FVH_SIGNATURE,\r | |
141f0c64 | 61 | EFI_FVB2_MEMORY_MAPPED |\r |
ac0a286f MK |
62 | EFI_FVB2_READ_ENABLED_CAP |\r |
63 | EFI_FVB2_READ_STATUS |\r | |
64 | EFI_FVB2_WRITE_ENABLED_CAP |\r | |
65 | EFI_FVB2_WRITE_STATUS |\r | |
66 | EFI_FVB2_ERASE_POLARITY |\r | |
67 | EFI_FVB2_ALIGNMENT_16,\r | |
a4ce9ffd JJ |
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 | |
84043adf LE |
76 | {\r |
77 | (FixedPcdGet32 (PcdFlashNvStorageVariableSize) +\r | |
78 | FixedPcdGet32 (PcdFlashNvStorageFtwWorkingSize) +\r | |
79 | FixedPcdGet32 (PcdFlashNvStorageFtwSpareSize) +\r | |
ea0d111e LE |
80 | FixedPcdGet32 (PcdOvmfFlashNvStorageEventLogSize)) /\r |
81 | FixedPcdGet32 (PcdOvmfFirmwareBlockSize),\r | |
84043adf LE |
82 | FixedPcdGet32 (PcdOvmfFirmwareBlockSize),\r |
83 | }\r | |
84 | } // BlockMap[1]\r | |
a4ce9ffd JJ |
85 | },\r |
86 | {\r | |
84043adf LE |
87 | {\r |
88 | 0,\r | |
89 | 0\r | |
90 | }\r | |
91 | } // End[1]\r | |
a4ce9ffd JJ |
92 | }\r |
93 | };\r | |
94 | \r | |
95 | EFI_STATUS\r | |
96 | GetFvbInfo (\r | |
ac0a286f MK |
97 | IN UINT64 FvLength,\r |
98 | OUT EFI_FIRMWARE_VOLUME_HEADER **FvbInfo\r | |
a4ce9ffd JJ |
99 | )\r |
100 | {\r | |
ac0a286f MK |
101 | STATIC BOOLEAN Checksummed = FALSE;\r |
102 | UINTN Index;\r | |
a4ce9ffd JJ |
103 | \r |
104 | if (!Checksummed) {\r | |
ea0d111e LE |
105 | for (Index = 0;\r |
106 | Index < sizeof (mPlatformFvbMediaInfo) / sizeof (EFI_FVB_MEDIA_INFO);\r | |
ac0a286f MK |
107 | Index += 1)\r |
108 | {\r | |
109 | UINT16 Checksum;\r | |
a4ce9ffd | 110 | mPlatformFvbMediaInfo[Index].FvbInfo.Checksum = 0;\r |
ac0a286f MK |
111 | Checksum = CalculateCheckSum16 (\r |
112 | (UINT16 *)&mPlatformFvbMediaInfo[Index].FvbInfo,\r | |
113 | mPlatformFvbMediaInfo[Index].FvbInfo.HeaderLength\r | |
114 | );\r | |
a4ce9ffd JJ |
115 | mPlatformFvbMediaInfo[Index].FvbInfo.Checksum = Checksum;\r |
116 | }\r | |
ac0a286f | 117 | \r |
a4ce9ffd JJ |
118 | Checksummed = TRUE;\r |
119 | }\r | |
120 | \r | |
ea0d111e LE |
121 | for (Index = 0;\r |
122 | Index < sizeof (mPlatformFvbMediaInfo) / sizeof (EFI_FVB_MEDIA_INFO);\r | |
ac0a286f MK |
123 | Index += 1)\r |
124 | {\r | |
a4ce9ffd JJ |
125 | if (mPlatformFvbMediaInfo[Index].FvLength == FvLength) {\r |
126 | *FvbInfo = &mPlatformFvbMediaInfo[Index].FvbInfo;\r | |
127 | return EFI_SUCCESS;\r | |
128 | }\r | |
129 | }\r | |
130 | \r | |
131 | return EFI_NOT_FOUND;\r | |
132 | }\r |