mirror of
https://github.com/smaeul/u-boot.git
synced 2025-11-03 21:48:15 +00:00
d0dfbf548d
Allow reading the command line from a zimage, so that it can be recorded in the bootflow. Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Simon Glass <sjg@chromium.org>
103 lines
3.2 KiB
C
103 lines
3.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* (C) Copyright 2002
|
|
* Daniel Engström, Omicron Ceti AB, daniel@omicron.se
|
|
*/
|
|
|
|
#ifndef _ASM_ZIMAGE_H_
|
|
#define _ASM_ZIMAGE_H_
|
|
|
|
#include <asm/bootparam.h>
|
|
#include <asm/e820.h>
|
|
|
|
/* linux i386 zImage/bzImage header. Offsets relative to
|
|
* the start of the image */
|
|
|
|
#define HEAP_FLAG 0x80
|
|
#define BIG_KERNEL_FLAG 0x01
|
|
|
|
/* magic numbers */
|
|
#define KERNEL_MAGIC 0xaa55
|
|
#define KERNEL_V2_MAGIC 0x53726448
|
|
#define COMMAND_LINE_MAGIC 0xA33F
|
|
|
|
/* limits */
|
|
#define BZIMAGE_MAX_SIZE 15*1024*1024 /* 15MB */
|
|
#define ZIMAGE_MAX_SIZE 512*1024 /* 512k */
|
|
#define SETUP_MAX_SIZE 32768
|
|
|
|
#define SETUP_START_OFFSET 0x200
|
|
#define BZIMAGE_LOAD_ADDR 0x100000
|
|
#define ZIMAGE_LOAD_ADDR 0x10000
|
|
|
|
/**
|
|
* load_zimage() - Load a zImage or bzImage
|
|
*
|
|
* This copies an image into the standard location ready for setup
|
|
*
|
|
* @image: Address of image to load
|
|
* @kernel_size: Size of kernel including setup block (or 0 if the kernel is
|
|
* new enough to have a 'syssize' value)
|
|
* @load_addressp: Returns the address where the kernel has been loaded
|
|
* Return: address of setup block, or NULL if something went wrong
|
|
*/
|
|
struct boot_params *load_zimage(char *image, unsigned long kernel_size,
|
|
ulong *load_addressp);
|
|
|
|
/**
|
|
* setup_zimage() - Set up a loaded zImage or bzImage ready for booting
|
|
*
|
|
* @setup_base: Pointer to the boot parameters, typically at address
|
|
* DEFAULT_SETUP_BASE
|
|
* @cmd_line: Place to put the command line, or NULL to use the one in the setup
|
|
* block
|
|
* @initrd_addr: Address of the initial ramdisk, or 0 if none
|
|
* @initrd_size: Size of the initial ramdisk, or 0 if none
|
|
* @load_address: Address where the bzImage is moved before booting, either
|
|
* BZIMAGE_LOAD_ADDR or ZIMAGE_LOAD_ADDR
|
|
* @cmdline_force: Address of 'override' command line, or 0 to use the one in
|
|
* the * setup block
|
|
* Return: 0 (always)
|
|
*/
|
|
int setup_zimage(struct boot_params *setup_base, char *cmd_line, int auto_boot,
|
|
ulong initrd_addr, ulong initrd_size, ulong cmdline_force);
|
|
|
|
/**
|
|
* zimage_dump() - Dump the metadata of a zimage
|
|
*
|
|
* This shows all available information in a zimage that has been loaded.
|
|
*
|
|
* @base_ptr: Pointer to the boot parameters, typically at address
|
|
* DEFAULT_SETUP_BASE
|
|
*/
|
|
void zimage_dump(struct boot_params *base_ptr);
|
|
|
|
/**
|
|
* zboot_start() - Boot a zimage
|
|
*
|
|
* Boot a zimage, given the component parts
|
|
*
|
|
* @addr: Address where the bzImage is moved before booting, either
|
|
* BZIMAGE_LOAD_ADDR or ZIMAGE_LOAD_ADDR
|
|
* @base: Pointer to the boot parameters, typically at address
|
|
* DEFAULT_SETUP_BASE
|
|
* @initrd: Address of the initial ramdisk, or 0 if none
|
|
* @initrd_size: Size of the initial ramdisk, or 0 if none
|
|
* @cmdline: Command line to use for booting
|
|
* Return: -EFAULT on error (normally it does not return)
|
|
*/
|
|
int zboot_start(ulong addr, ulong size, ulong initrd, ulong initrd_size,
|
|
ulong base, char *cmdline);
|
|
|
|
/*
|
|
* zimage_get_kernel_version() - Get the version string from a kernel
|
|
*
|
|
* @params: boot_params pointer
|
|
* @kernel_base: base address of kernel
|
|
* Return: Kernel version as a NUL-terminated string
|
|
*/
|
|
const char *zimage_get_kernel_version(struct boot_params *params,
|
|
void *kernel_base);
|
|
|
|
#endif
|