VirtualBox

source: vbox/trunk/include/iprt/formats/efi-fat.h@ 105688

Last change on this file since 105688 was 98103, checked in by vboxsync, 23 months ago

Copyright year updates by scm.

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1/* $Id: efi-fat.h 98103 2023-01-17 14:15:46Z vboxsync $ */
2/** @file
3 * IPRT, EFI FAT Binary (used by Apple, contains multiple architectures).
4 */
5
6/*
7 * Copyright (C) 2019-2023 Oracle and/or its affiliates.
8 *
9 * This file is part of VirtualBox base platform packages, as
10 * available from https://www.virtualbox.org.
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation, in version 3 of the
15 * License.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, see <https://www.gnu.org/licenses>.
24 *
25 * The contents of this file may alternatively be used under the terms
26 * of the Common Development and Distribution License Version 1.0
27 * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
28 * in the VirtualBox distribution, in which case the provisions of the
29 * CDDL are applicable instead of those of the GPL.
30 *
31 * You may elect to license modified versions of this file under the
32 * terms and conditions of either the GPL or the CDDL or both.
33 *
34 * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
35 */
36
37#ifndef IPRT_INCLUDED_formats_efi_fat_h
38#define IPRT_INCLUDED_formats_efi_fat_h
39#ifndef RT_WITHOUT_PRAGMA_ONCE
40# pragma once
41#endif
42
43#include <iprt/types.h>
44#include <iprt/assertcompile.h>
45
46/*
47 * Definitions come from http://refit.sourceforge.net/info/fat_binary.html
48 */
49
50/**
51 * The header structure.
52 */
53typedef struct EFI_FATHDR
54{
55 /** The magic identifying the header .*/
56 uint32_t u32Magic;
57 /** Number of files (one per architecture) embedded into the file. */
58 uint32_t cFilesEmbedded;
59} EFI_FATHDR;
60AssertCompileSize(EFI_FATHDR, 8);
61typedef EFI_FATHDR *PEFI_FATHDR;
62
63/** The magic identifying a FAT header. */
64#define EFI_FATHDR_MAGIC UINT32_C(0x0ef1fab9)
65
66/**
67 * The direcory entry.
68 */
69typedef struct EFI_FATDIRENTRY
70{
71 /** The CPU type the referenced file is for. */
72 uint32_t u32CpuType;
73 /** The CPU sub-type the referenced file is for. */
74 uint32_t u32CpuSubType;
75 /** Offset in bytes where the file is located. */
76 uint32_t u32OffsetStart;
77 /** Length of the file in bytes. */
78 uint32_t cbFile;
79 /** Alignment used for the file. */
80 uint32_t u32Alignment;
81} EFI_FATDIRENTRY;
82AssertCompileSize(EFI_FATDIRENTRY, 20);
83typedef EFI_FATDIRENTRY *PEFI_FATDIRENTRY;
84
85#define EFI_FATDIRENTRY_CPU_TYPE_X86 UINT32_C(0x7)
86#define EFI_FATDIRENTRY_CPU_TYPE_AMD64 UINT32_C(0x01000007)
87
88#define EFI_FATDIRENTRY_CPU_SUB_TYPE_GENERIC UINT32_C(0x3)
89
90
91#endif /* !IPRT_INCLUDED_formats_efi_fat_h */
92
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