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git.proxmox.com Git - mirror_edk2.git/blob - MdePkg/Include/IndustryStandard/ElTorito.h
2 ElTorito Partitions Format Definition.
3 This file includes some defintions from
4 1. "El Torito" Bootable CD-ROM Format Specification, Version 1.0.
5 2. Volume and File Structure of CDROM for Information Interchange,
6 Standard ECMA-119. (IS0 9660)
8 Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
9 SPDX-License-Identifier: BSD-2-Clause-Patent
17 // CDROM_VOLUME_DESCRIPTOR.Types, defined in ISO 9660
19 #define CDVOL_TYPE_STANDARD 0x0
20 #define CDVOL_TYPE_CODED 0x1
21 #define CDVOL_TYPE_END 0xFF
24 /// CDROM_VOLUME_DESCRIPTOR.Id
26 #define CDVOL_ID "CD001"
29 /// CDROM_VOLUME_DESCRIPTOR.SystemId
31 #define CDVOL_ELTORITO_ID "EL TORITO SPECIFICATION"
36 #define ELTORITO_ID_CATALOG 0x01
37 #define ELTORITO_ID_SECTION_BOOTABLE 0x88
38 #define ELTORITO_ID_SECTION_NOT_BOOTABLE 0x00
39 #define ELTORITO_ID_SECTION_HEADER 0x90
40 #define ELTORITO_ID_SECTION_HEADER_FINAL 0x91
43 // ELTORITO_CATALOG.Boot.MediaTypes
45 #define ELTORITO_NO_EMULATION 0x00
46 #define ELTORITO_12_DISKETTE 0x01
47 #define ELTORITO_14_DISKETTE 0x02
48 #define ELTORITO_28_DISKETTE 0x03
49 #define ELTORITO_HARD_DISK 0x04
55 /// CD-ROM Volume Descriptor
60 CHAR8 Id
[5]; ///< "CD001"
65 /// Boot Record Volume Descriptor, defined in "El Torito" Specification.
68 UINT8 Type
; ///< Must be 0
69 CHAR8 Id
[5]; ///< "CD001"
70 UINT8 Version
; ///< Must be 1
71 CHAR8 SystemId
[32]; ///< "EL TORITO SPECIFICATION"
72 CHAR8 Unused
[32]; ///< Must be 0
73 UINT8 EltCatalog
[4]; ///< Absolute pointer to first sector of Boot Catalog
74 CHAR8 Unused2
[13]; ///< Must be 0
78 /// Primary Volumn Descriptor, defined in ISO 9660.
82 CHAR8 Id
[5]; ///< "CD001"
84 UINT8 Unused
; ///< Must be 0
87 UINT8 Unused2
[8]; ///< Must be 0
88 UINT32 VolSpaceSize
[2]; ///< the number of Logical Blocks
91 } CDROM_VOLUME_DESCRIPTOR
;
102 /// Catalog validation entry (Catalog header)
105 UINT8 Indicator
; ///< Must be 01
114 /// Initial/Default Entry or Section Entry
117 UINT8 Indicator
; ///< 88 = Bootable, 00 = Not Bootable
119 UINT8 Reserved1
: 4; ///< Must be 0
122 UINT8 Reserved2
; ///< Must be 0
128 /// Section Header Entry
131 UINT8 Indicator
; ///< 90 - Header, more header follw, 91 - Final Header
133 UINT16 SectionEntries
; ///< Number of section entries following this header