| 1 | /* $Id: efi-fat.h 81775 2019-11-11 18:14:36Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT, EFI FAT Binary (used by Apple, contains multiple architectures).
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2019 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 | #ifndef IPRT_INCLUDED_formats_efi_fat_h
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| 28 | #define IPRT_INCLUDED_formats_efi_fat_h
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| 29 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 30 | # pragma once
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| 31 | #endif
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| 32 |
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| 33 | #include <iprt/types.h>
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| 34 | #include <iprt/assertcompile.h>
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| 35 |
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| 36 | /*
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| 37 | * Definitions come from http://refit.sourceforge.net/info/fat_binary.html
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| 38 | */
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| 39 |
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| 40 | /**
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| 41 | * The header structure.
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| 42 | */
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| 43 | typedef struct EFI_FATHDR
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| 44 | {
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| 45 | /** The magic identifying the header .*/
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| 46 | uint32_t u32Magic;
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| 47 | /** Number of files (one per architecture) embedded into the file. */
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| 48 | uint32_t cFilesEmbedded;
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| 49 | } EFI_FATHDR;
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| 50 | AssertCompileSize(EFI_FATHDR, 8);
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| 51 | typedef EFI_FATHDR *PEFI_FATHDR;
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| 52 |
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| 53 | /** The magic identifying a FAT header. */
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| 54 | #define EFI_FATHDR_MAGIC UINT32_C(0x0ef1fab9)
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| 55 |
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| 56 | /**
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| 57 | * The direcory entry.
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| 58 | */
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| 59 | typedef struct EFI_FATDIRENTRY
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| 60 | {
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| 61 | /** The CPU type the referenced file is for. */
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| 62 | uint32_t u32CpuType;
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| 63 | /** The CPU sub-type the referenced file is for. */
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| 64 | uint32_t u32CpuSubType;
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| 65 | /** Offset in bytes where the file is located. */
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| 66 | uint32_t u32OffsetStart;
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| 67 | /** Length of the file in bytes. */
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| 68 | uint32_t cbFile;
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| 69 | /** Alignment used for the file. */
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| 70 | uint32_t u32Alignment;
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| 71 | } EFI_FATDIRENTRY;
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| 72 | AssertCompileSize(EFI_FATDIRENTRY, 20);
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| 73 | typedef EFI_FATDIRENTRY *PEFI_FATDIRENTRY;
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| 74 |
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| 75 | #define EFI_FATDIRENTRY_CPU_TYPE_X86 UINT32_C(0x7)
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| 76 | #define EFI_FATDIRENTRY_CPU_TYPE_AMD64 UINT32_C(0x01000007)
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| 77 |
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| 78 | #define EFI_FATDIRENTRY_CPU_SUB_TYPE_GENERIC UINT32_C(0x3)
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| 79 |
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| 80 |
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| 81 | #endif /* !IPRT_INCLUDED_formats_efi_fat_h */
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| 82 |
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