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

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    Revision 1133 - (hide 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 niro 532 ;; -----------------------------------------------------------------------
    2     ;;
    3 niro 1133 ;; Copyright 1994-2008 H. Peter Anvin - All Rights Reserved
    4     ;;
    5 niro 532 ;; 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 niro 1133 ;;
    16 niro 532 ;; 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 niro 1133 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 niro 532 endstruc
    64    
    65     ;
    66 niro 1133 ; Old kernel command line signature
    67 niro 532 ;
    68     CMD_MAGIC equ 0A33Fh ; Command line magic
    69    
    70     ;
    71 niro 1133 ; 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 niro 532 ; 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 niro 1133 QUIET_FLAG equ 20h ; Quiet the kernel
    89     KEEP_SEGMENTS equ 40h ; Don't reload segments
    90 niro 532 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 niro 1133 ;
    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 niro 532 %endif ; _KERNEL_INC