arch/x86/include/asm/zimage.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * (C) Copyright 2002
   4  * Daniel Engström, Omicron Ceti AB, daniel@omicron.se
   5  */
   6
   7 #ifndef _ASM_ZIMAGE_H_
   8 #define _ASM_ZIMAGE_H_
   9
  10 #include <asm/bootparam.h>
  11 #include <asm/e820.h>
  12
  13 /* linux i386 zImage/bzImage header. Offsets relative to
  14  * the start of the image */
  15
  16 #define HEAP_FLAG           0x80
  17 #define BIG_KERNEL_FLAG     0x01
  18
  19 /* magic numbers */
  20 #define KERNEL_MAGIC        0xaa55
  21 #define KERNEL_V2_MAGIC     0x53726448
  22 #define COMMAND_LINE_MAGIC  0xA33F
  23
  24 /* limits */
  25 #define BZIMAGE_MAX_SIZE   15*1024*1024     /* 15MB */
  26 #define ZIMAGE_MAX_SIZE    512*1024         /* 512k */
  27 #define SETUP_MAX_SIZE     32768
  28
  29 #define SETUP_START_OFFSET 0x200
  30 #define BZIMAGE_LOAD_ADDR  0x100000
  31 #define ZIMAGE_LOAD_ADDR   0x10000
  32
  33 struct boot_params *load_zimage(char *image, unsigned long kernel_size,
  34                                 ulong *load_addressp);
  35 int setup_zimage(struct boot_params *setup_base, char *cmd_line, int auto_boot,
  36                  unsigned long initrd_addr, unsigned long initrd_size);
  37 void setup_video(struct screen_info *screen_info);
  38
  39 #endif