| ;; ----------------------------------------------------------------------- |
| ;; |
| ;; Copyright 1994-2008 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 (0f800h-12)-($-$$) |
| linux_stack equ $ ; F7F4 |
| linux_fdctab resb 12 |
| cmd_line_here equ $ ; F800 Should be out of the way |
| endstruc |
| |
| ; |
| ; Old kernel command line signature |
| ; |
| CMD_MAGIC equ 0A33Fh ; Command line magic |
| |
| ; |
| ; If we're loading the command line old-style, we need a smaller |
| ; heap. |
| ; |
| old_cmd_line_here equ 9800h |
| old_max_cmd_len equ 2047 |
| old_linux_fdctab equ old_cmd_line_here-12 |
| old_linux_stack equ old_linux_fdctab |
| |
| ; |
| ; 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 |
| QUIET_FLAG equ 20h ; Quiet the kernel |
| KEEP_SEGMENTS equ 40h ; Don't reload segments |
| 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 |
| |
| ; |
| ; Types of vkernels |
| ; |
| VK_LOCALBOOT equ -1 ; localboot (no actual kernel loaded) |
| VK_KERNEL equ 0 ; Choose by filename |
| VK_LINUX equ 1 ; Linux kernel image |
| VK_BOOT equ 2 ; Boot sector |
| VK_BSS equ 3 ; BSS boot sector |
| VK_PXE equ 4 ; PXE NBP |
| VK_FDIMAGE equ 5 ; Floppy disk image |
| VK_COMBOOT equ 6 ; COMBOOT image |
| VK_COM32 equ 7 ; COM32 image |
| VK_CONFIG equ 8 ; Configuration file |
| VK_TYPES equ 9 ; Number of VK types |
| |
| %endif ; _KERNEL_INC |
