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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2006-10-09 Bernard the grub related definitions
* (multiboot)
*/
#ifndef __GRUB_H__
#define __GRUB_H__
/* the magic number for the multiboot header. */
#define MULTIBOOT_HEADER_MAGIC 0x1BADB002
/* the flags for the multiboot header. */
#define MULTIBOOT_HEADER_FLAGS 0x00000003
/* the magic number passed by a multiboot-compliant boot loader. */
#define MULTIBOOT_BOOTLOADER_MAGIC 0x2BADB002
#ifndef __ASM__
/* the multiboot header. */
typedef struct multiboot_header
{
unsigned long magic;
unsigned long flags;
unsigned long checksum;
unsigned long header_addr;
unsigned long load_addr;
unsigned long load_end_addr;
unsigned long bss_end_addr;
unsigned long entry_addr;
} multiboot_header_t;
/* the section header table for elf. */
typedef struct elf_section_header_table
{
unsigned long num;
unsigned long size;
unsigned long addr;
unsigned long shndx;
} elf_section_header_table_t;
/* the multiboot information. */
typedef struct multiboot_info
{
unsigned long flags;
unsigned long mem_lower;
unsigned long mem_upper;
unsigned long boot_device;
unsigned long cmdline;
unsigned long mods_count;
unsigned long mods_addr;
union
{
aout_symbol_table_t aout_sym;
elf_section_header_table_t elf_sec;
} u;
unsigned long mmap_length;
unsigned long mmap_addr;
} multiboot_info_t;
/* the module structure. */
typedef struct module
{
unsigned long mod_start;
unsigned long mod_end;
unsigned long string;
unsigned long reserved;
} module_t;
/* the memory map. be careful that the offset 0 is base_addr_low
but no size. */
typedef struct memory_map
{
unsigned long size;
unsigned long base_addr_low;
unsigned long base_addr_high;
unsigned long length_low;
unsigned long length_high;
unsigned long type;
} memory_map_t;
#endif
#endif
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