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    Contents of /trunk/mkinitrd-magellan/isolinux/kernel.inc

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    Revision 1133 - (show annotations) (download)
    Thu Aug 19 09:50:43 2010 UTC (13 years, 8 months ago) by niro
    File size: 3600 byte(s) 
    -updated to isolinux-3.86
    1 ;; -----------------------------------------------------------------------
    2 ;;
    3 ;; Copyright 1994-2008 H. Peter Anvin - All Rights Reserved
    4 ;;
    5 ;; This program is free software; you can redistribute it and/or modify
    6 ;; it under the terms of the GNU General Public License as published by
    7 ;; the Free Software Foundation, Inc., 53 Temple Place Ste 330,
    8 ;; Boston MA 02111-1307, USA; either version 2 of the License, or
    9 ;; (at your option) any later version; incorporated herein by reference.
    10 ;;
    11 ;; -----------------------------------------------------------------------
    12
    13 ;;
    14 ;; kernel.inc
    15 ;;
    16 ;; Header file for the kernel interface definitions
    17 ;;
    18
    19 %ifndef _KERNEL_INC
    20 %define _KERNEL_INC
    21
    22 ;;
    23 ;; Structure of the real_mode_seg
    24 ;;
    25
    26 struc real_mode_seg_t
    27 resb 20h-($-$$) ; org 20h
    28 kern_cmd_magic resw 1 ; 0020 Magic # for command line
    29 kern_cmd_offset resw 1 ; 0022 Offset for kernel command line
    30 resb 497-($-$$) ; org 497d
    31 bs_setupsecs resb 1 ; 01F1 Sectors for setup code (0 -> 4)
    32 bs_rootflags resw 1 ; 01F2 Root readonly flag
    33 bs_syssize resw 1 ; 01F4
    34 bs_swapdev resw 1 ; 01F6 Swap device (obsolete)
    35 bs_ramsize resw 1 ; 01F8 Ramdisk flags, formerly ramdisk size
    36 bs_vidmode resw 1 ; 01FA Video mode
    37 bs_rootdev resw 1 ; 01FC Root device
    38 bs_bootsign resw 1 ; 01FE Boot sector signature (0AA55h)
    39 su_jump resb 1 ; 0200 0EBh
    40 su_jump2 resb 1 ; 0201 Size of following header
    41 su_header resd 1 ; 0202 New setup code: header
    42 su_version resw 1 ; 0206 See linux/arch/i386/boot/setup.S
    43 su_switch resw 1 ; 0208
    44 su_setupseg resw 1 ; 020A
    45 su_startsys resw 1 ; 020C
    46 su_kver resw 1 ; 020E Kernel version pointer
    47 su_loader resb 1 ; 0210 Loader ID
    48 su_loadflags resb 1 ; 0211 Load high flag
    49 su_movesize resw 1 ; 0212
    50 su_code32start resd 1 ; 0214 Start of code loaded high
    51 su_ramdiskat resd 1 ; 0218 Start of initial ramdisk
    52 su_ramdisklen resd 1 ; 021C Length of initial ramdisk
    53 su_bsklugeoffs resw 1 ; 0220
    54 su_bsklugeseg resw 1 ; 0222
    55 su_heapend resw 1 ; 0224
    56 su_pad1 resw 1 ; 0226
    57 su_cmd_line_ptr resd 1 ; 0228
    58 su_ramdisk_max resd 1 ; 022C
    59 resb (0f800h-12)-($-$$)
    60 linux_stack equ $ ; F7F4
    61 linux_fdctab resb 12
    62 cmd_line_here equ $ ; F800 Should be out of the way
    63 endstruc
    64
    65 ;
    66 ; Old kernel command line signature
    67 ;
    68 CMD_MAGIC equ 0A33Fh ; Command line magic
    69
    70 ;
    71 ; If we're loading the command line old-style, we need a smaller
    72 ; heap.
    73 ;
    74 old_cmd_line_here equ 9800h
    75 old_max_cmd_len equ 2047
    76 old_linux_fdctab equ old_cmd_line_here-12
    77 old_linux_stack equ old_linux_fdctab
    78
    79 ;
    80 ; Magic number of su_header field
    81 ;
    82 HEADER_ID equ 'HdrS' ; HdrS (in littleendian hex)
    83
    84 ;
    85 ; Flags for the su_loadflags field
    86 ;
    87 LOAD_HIGH equ 01h ; Large kernel, load high
    88 QUIET_FLAG equ 20h ; Quiet the kernel
    89 KEEP_SEGMENTS equ 40h ; Don't reload segments
    90 CAN_USE_HEAP equ 80h ; Boot loader reports heap size
    91
    92 ;
    93 ; ID codes for various modules
    94 ;
    95 syslinux_id equ 031h ; 3 = SYSLINUX family; 1 = SYSLINUX
    96 pxelinux_id equ 032h ; 3 = SYSLINUX family; 2 = PXELINUX
    97 isolinux_id equ 033h ; 3 = SYSLINUX family; 3 = ISOLINUX
    98 extlinux_id equ 034h ; 3 = SYSLINUX family; 4 = EXTLINUX
    99
    100 ;
    101 ; Types of vkernels
    102 ;
    103 VK_LOCALBOOT equ -1 ; localboot (no actual kernel loaded)
    104 VK_KERNEL equ 0 ; Choose by filename
    105 VK_LINUX equ 1 ; Linux kernel image
    106 VK_BOOT equ 2 ; Boot sector
    107 VK_BSS equ 3 ; BSS boot sector
    108 VK_PXE equ 4 ; PXE NBP
    109 VK_FDIMAGE equ 5 ; Floppy disk image
    110 VK_COMBOOT equ 6 ; COMBOOT image
    111 VK_COM32 equ 7 ; COM32 image
    112 VK_CONFIG equ 8 ; Configuration file
    113 VK_TYPES equ 9 ; Number of VK types
    114
    115 %endif ; _KERNEL_INC