1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
/*++
Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name:
FvbInfo.c
Abstract:
Defines data structure that is the volume header found.These data is intent
to decouple FVB driver with FV header.
--*/
#include "PiDxe.h"
#include <Guid/EventGroup.h>
#include <Protocol/FirmwareVolumeBlock.h>
#include <Protocol/DevicePath.h>
#include <Library/UefiLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/BaseLib.h>
#include <Library/DxeServicesTableLib.h>
#include <Library/UefiRuntimeLib.h>
#include <Library/DebugLib.h>
#include <Library/HobLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/PcdLib.h>
#include <Library/DevicePathLib.h>
#include <Guid/FirmwareFileSystem2.h>
#include <Guid/SystemNvDataGuid.h>
typedef struct {
UINT64 FvLength;
EFI_FIRMWARE_VOLUME_HEADER FvbInfo;
//
// EFI_FV_BLOCK_MAP_ENTRY ExtraBlockMap[n];//n=0
//
EFI_FV_BLOCK_MAP_ENTRY End[1];
} EFI_FVB_MEDIA_INFO;
EFI_FVB_MEDIA_INFO mPlatformFvbMediaInfo[] = {
//
// Recovery BOIS FVB
//
{
FixedPcdGet32 (PcdUnixFlashFvRecoverySize),
{
{
0,
}, // ZeroVector[16]
EFI_FIRMWARE_FILE_SYSTEM2_GUID,
FixedPcdGet32 (PcdUnixFlashFvRecoverySize),
EFI_FVH_SIGNATURE,
EFI_FVB2_READ_ENABLED_CAP |
EFI_FVB2_READ_STATUS |
EFI_FVB2_WRITE_ENABLED_CAP |
EFI_FVB2_WRITE_STATUS |
EFI_FVB2_ERASE_POLARITY,
sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),
0, // CheckSum
0, // ExtHeaderOffset
{
0,
}, // Reserved[1]
2, // Revision
{
{
FixedPcdGet32 (PcdUnixFlashFvRecoverySize)/FixedPcdGet32 (PcdUnixFirmwareBlockSize),
FixedPcdGet32 (PcdUnixFirmwareBlockSize),
}
}
},
{
{
0,
0
}
}
},
//
// Systen NvStorage FVB
//
{
FixedPcdGet32 (PcdFlashNvStorageVariableSize) + \
FixedPcdGet32 (PcdFlashNvStorageFtwWorkingSize) + \
FixedPcdGet32 (PcdFlashNvStorageFtwSpareSize) + \
FixedPcdGet32 (PcdUnixFlashNvStorageEventLogSize),
{
{
0,
}, // ZeroVector[16]
EFI_SYSTEM_NV_DATA_FV_GUID,
FixedPcdGet32 (PcdFlashNvStorageVariableSize) + \
FixedPcdGet32 (PcdFlashNvStorageFtwWorkingSize) + \
FixedPcdGet32 (PcdFlashNvStorageFtwSpareSize) + \
FixedPcdGet32 (PcdUnixFlashNvStorageEventLogSize),
EFI_FVH_SIGNATURE,
EFI_FVB2_READ_ENABLED_CAP |
EFI_FVB2_READ_STATUS |
EFI_FVB2_WRITE_ENABLED_CAP |
EFI_FVB2_WRITE_STATUS |
EFI_FVB2_ERASE_POLARITY,
sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),
0, // CheckSum
0, // ExtHeaderOffset
{
0,
}, // Reserved[1]
2, // Revision
{
{
(FixedPcdGet32 (PcdFlashNvStorageVariableSize) + \
FixedPcdGet32 (PcdFlashNvStorageFtwWorkingSize) + \
FixedPcdGet32 (PcdFlashNvStorageFtwSpareSize) + \
FixedPcdGet32 (PcdUnixFlashNvStorageEventLogSize)) / FixedPcdGet32 (PcdUnixFirmwareBlockSize),
FixedPcdGet32 (PcdUnixFirmwareBlockSize),
}
}
},
{
{
0,
0
}
}
}
};
EFI_STATUS
GetFvbInfo (
IN UINT64 FvLength,
OUT EFI_FIRMWARE_VOLUME_HEADER **FvbInfo
)
{
UINTN Index;
for (Index = 0; Index < sizeof (mPlatformFvbMediaInfo) / sizeof (EFI_FVB_MEDIA_INFO); Index += 1) {
if (mPlatformFvbMediaInfo[Index].FvLength == FvLength) {
*FvbInfo = &mPlatformFvbMediaInfo[Index].FvbInfo;
return EFI_SUCCESS;
}
}
return EFI_NOT_FOUND;
}
|
