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- ;; $Id: kernel.inc,v 1.5 2005/01/10 02:41:31 hpa Exp $
- ;; -----------------------------------------------------------------------
- ;;
- ;; Copyright 1994-2002 H. Peter Anvin - All Rights Reserved
- ;;
- ;; This program is free software; you can redistribute it and/or modify
- ;; it under the terms of the GNU General Public License as published by
- ;; the Free Software Foundation, Inc., 53 Temple Place Ste 330,
- ;; Boston MA 02111-1307, USA; either version 2 of the License, or
- ;; (at your option) any later version; incorporated herein by reference.
- ;;
- ;; -----------------------------------------------------------------------
-
- ;;
- ;; kernel.inc
- ;;
- ;; Header file for the kernel interface definitions
- ;;
-
- %ifndef _KERNEL_INC
- %define _KERNEL_INC
-
- ;;
- ;; Structure of the real_mode_seg
- ;;
-
- struc real_mode_seg_t
- resb 20h-($-$$) ; org 20h
- kern_cmd_magic resw 1 ; 0020 Magic # for command line
- kern_cmd_offset resw 1 ; 0022 Offset for kernel command line
- resb 497-($-$$) ; org 497d
- bs_setupsecs resb 1 ; 01F1 Sectors for setup code (0 -> 4)
- bs_rootflags resw 1 ; 01F2 Root readonly flag
- bs_syssize resw 1 ; 01F4
- bs_swapdev resw 1 ; 01F6 Swap device (obsolete)
- bs_ramsize resw 1 ; 01F8 Ramdisk flags, formerly ramdisk size
- bs_vidmode resw 1 ; 01FA Video mode
- bs_rootdev resw 1 ; 01FC Root device
- bs_bootsign resw 1 ; 01FE Boot sector signature (0AA55h)
- su_jump resb 1 ; 0200 0EBh
- su_jump2 resb 1 ; 0201 Size of following header
- su_header resd 1 ; 0202 New setup code: header
- su_version resw 1 ; 0206 See linux/arch/i386/boot/setup.S
- su_switch resw 1 ; 0208
- su_setupseg resw 1 ; 020A
- su_startsys resw 1 ; 020C
- su_kver resw 1 ; 020E Kernel version pointer
- su_loader resb 1 ; 0210 Loader ID
- su_loadflags resb 1 ; 0211 Load high flag
- su_movesize resw 1 ; 0212
- su_code32start resd 1 ; 0214 Start of code loaded high
- su_ramdiskat resd 1 ; 0218 Start of initial ramdisk
- su_ramdisklen resd 1 ; 021C Length of initial ramdisk
- su_bsklugeoffs resw 1 ; 0220
- su_bsklugeseg resw 1 ; 0222
- su_heapend resw 1 ; 0224
- su_pad1 resw 1 ; 0226
- su_cmd_line_ptr resd 1 ; 0228
- su_ramdisk_max resd 1 ; 022C
- resb (9000h-12)-($-$$) ; Were bootsect.S puts it...
- linux_stack equ $ ; 8FF4
- linux_fdctab equ $
- resb 9000h-($-$$)
- cmd_line_here equ $ ; 9000 Should be out of the way
- endstruc
-
- ;
- ; Kernel command line signature
- ;
- CMD_MAGIC equ 0A33Fh ; Command line magic
-
- ;
- ; Magic number of su_header field
- ;
- HEADER_ID equ 'HdrS' ; HdrS (in littleendian hex)
-
- ;
- ; Flags for the su_loadflags field
- ;
- LOAD_HIGH equ 01h ; Large kernel, load high
- CAN_USE_HEAP equ 80h ; Boot loader reports heap size
-
- ;
- ; ID codes for various modules
- ;
- syslinux_id equ 031h ; 3 = SYSLINUX family; 1 = SYSLINUX
- pxelinux_id equ 032h ; 3 = SYSLINUX family; 2 = PXELINUX
- isolinux_id equ 033h ; 3 = SYSLINUX family; 3 = ISOLINUX
- extlinux_id equ 034h ; 3 = SYSLINUX family; 4 = EXTLINUX
-
- %endif ; _KERNEL_INC
-