| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * (C) Copyright 2002 |
| 3 | * Daniel Engström, Omicron Ceti AB, daniel@omicron.se |
| 4 | * |
| 5 | * SPDX-License-Identifier: GPL-2.0+ |
| 6 | */ |
| 7 | |
| 8 | #ifndef _ASM_ZIMAGE_H_ |
| 9 | #define _ASM_ZIMAGE_H_ |
| 10 | |
| 11 | #include <asm/bootparam.h> |
| 12 | #include <asm/e820.h> |
| 13 | |
| 14 | /* linux i386 zImage/bzImage header. Offsets relative to |
| 15 | * the start of the image */ |
| 16 | |
| 17 | #define HEAP_FLAG 0x80 |
| 18 | #define BIG_KERNEL_FLAG 0x01 |
| 19 | |
| 20 | /* magic numbers */ |
| 21 | #define KERNEL_MAGIC 0xaa55 |
| 22 | #define KERNEL_V2_MAGIC 0x53726448 |
| 23 | #define COMMAND_LINE_MAGIC 0xA33F |
| 24 | |
| 25 | /* limits */ |
| 26 | #define BZIMAGE_MAX_SIZE 15*1024*1024 /* 15MB */ |
| 27 | #define ZIMAGE_MAX_SIZE 512*1024 /* 512k */ |
| 28 | #define SETUP_MAX_SIZE 32768 |
| 29 | |
| 30 | #define SETUP_START_OFFSET 0x200 |
| 31 | #define BZIMAGE_LOAD_ADDR 0x100000 |
| 32 | #define ZIMAGE_LOAD_ADDR 0x10000 |
| 33 | |
| 34 | /* Implementation defined function to install an e820 map. */ |
| 35 | unsigned install_e820_map(unsigned max_entries, struct e820entry *); |
| 36 | |
| 37 | struct boot_params *load_zimage(char *image, unsigned long kernel_size, |
| 38 | void **load_address); |
| 39 | int setup_zimage(struct boot_params *setup_base, char *cmd_line, int auto_boot, |
| 40 | unsigned long initrd_addr, unsigned long initrd_size); |
| 41 | |
| 42 | void boot_zimage(void *setup_base, void *load_address); |
| 43 | |
| 44 | #endif |