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
|
/* $Id: efi-fv.h $ */
/** @file
* IPRT, EFI firmware volume (FV) definitions.
*/
/*
* Copyright (C) 2021-2022 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
#ifndef IPRT_INCLUDED_formats_efi_fv_h
#define IPRT_INCLUDED_formats_efi_fv_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
#include <iprt/types.h>
#include <iprt/assertcompile.h>
#include <iprt/formats/efi-common.h>
/*
* Definitions come from the UEFI PI Spec 1.5 Volume 3 Firmware, chapter 3 "Firmware Storage Code Definitions"
*/
/**
* The volume header.
*/
typedef struct EFI_FIRMWARE_VOLUME_HEADER
{
/** Reserved data for the reset vector. */
uint8_t abZeroVec[16];
/** The filesystem GUID. */
EFI_GUID GuidFilesystem;
/** The firmware volume length in bytes including this header. */
uint64_t cbFv;
/** The signature of the firmware volume header (set to _FVH). */
uint32_t u32Signature;
/** Firmware volume attributes. */
uint32_t fAttr;
/** Size of the header in bytes. */
uint16_t cbFvHdr;
/** Checksum of the header. */
uint16_t u16Chksum;
/** Offset of the extended header (0 for no extended header). */
uint16_t offExtHdr;
/** Reserved MBZ. */
uint8_t bRsvd;
/** Revision of the header. */
uint8_t bRevision;
} EFI_FIRMWARE_VOLUME_HEADER;
AssertCompileSize(EFI_FIRMWARE_VOLUME_HEADER, 56);
/** Pointer to a EFI firmware volume header. */
typedef EFI_FIRMWARE_VOLUME_HEADER *PEFI_FIRMWARE_VOLUME_HEADER;
/** Pointer to a const EFI firmware volume header. */
typedef const EFI_FIRMWARE_VOLUME_HEADER *PCEFI_FIRMWARE_VOLUME_HEADER;
/** The signature for a firmware volume header. */
#define EFI_FIRMWARE_VOLUME_HEADER_SIGNATURE RT_MAKE_U32_FROM_U8('_', 'F', 'V', 'H')
/** Revision of the firmware volume header. */
#define EFI_FIRMWARE_VOLUME_HEADER_REVISION 2
/**
* Firmware block map entry.
*/
typedef struct EFI_FW_BLOCK_MAP
{
/** Number of blocks for this entry. */
uint32_t cBlocks;
/** Block size in bytes. */
uint32_t cbBlock;
} EFI_FW_BLOCK_MAP;
AssertCompileSize(EFI_FW_BLOCK_MAP, 8);
/** Pointer to a firmware volume block map entry. */
typedef EFI_FW_BLOCK_MAP *PEFI_FW_BLOCK_MAP;
/** Pointer to a const firmware volume block map entry. */
typedef const EFI_FW_BLOCK_MAP *PCEFI_FW_BLOCK_MAP;
/**
* Fault tolerant working block header.
*/
typedef struct EFI_FTW_BLOCK_HEADER
{
/** GUID identifying the FTW block header. */
EFI_GUID GuidSignature;
/** The checksum. */
uint32_t u32Chksum;
/** Flags marking the working block area as valid/invalid. */
uint32_t fWorkingBlockValid;
/** Size of the write queue. */
uint64_t cbWriteQueue;
} EFI_FTW_BLOCK_HEADER;
/** Pointer to a fault tolerant working block header. */
typedef EFI_FTW_BLOCK_HEADER *PEFI_FTW_BLOCK_HEADER;
/** Pointer to a const fault tolerant working block header. */
typedef const EFI_FTW_BLOCK_HEADER *PCEFI_FTW_BLOCK_HEADER;
/** The signature for the working block header. */
#define EFI_WORKING_BLOCK_SIGNATURE_GUID \
{ 0x9e58292b, 0x7c68, 0x497d, { 0xa0, 0xce, 0x65, 0x0, 0xfd, 0x9f, 0x1b, 0x95 }}
#endif /* !IPRT_INCLUDED_formats_efi_fv_h */
|
