127 lines
3 KiB
C
127 lines
3 KiB
C
/* Copyright (C) 1999, 2001 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#ifndef __MULTIBOOT_H__
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#define __MULTIBOOT_H__
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/*
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* Multiboot header structure.
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*/
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#define MULTIBOOT_HEADER_MAGIC 0x1BADB002
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#define MULTIBOOT_HEADER_MODS_ALIGNED 0x00000001
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#define MULTIBOOT_HEADER_WANT_MEMORY 0x00000002
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#define MULTIBOOT_HEADER_HAS_VBE 0x00000004
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#define MULTIBOOT_HEADER_HAS_ADDR 0x00010000
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/* The magic number passed by a Multiboot-compliant boot loader. */
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#define MULTIBOOT_BOOTLOADER_MAGIC 0x2BADB002
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#define MBI_MEMLIMITS (1u<< 0)
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#define MBI_BOOTDEV (1u<< 1)
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#define MBI_CMDLINE (1u<< 2)
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#define MBI_MODULES (1u<< 3)
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#define MBI_AOUT_SYMS (1u<< 4)
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#define MBI_ELF_SYMS (1u<< 5)
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#define MBI_MEMMAP (1u<< 6)
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#define MBI_DRIVES (1u<< 7)
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#define MBI_BIOSCONFIG (1u<< 8)
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#define MBI_LOADERNAME (1u<< 9)
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#define MBI_APM (1u<<10)
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#ifndef __ASSEMBLY__
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/* The symbol table for a.out. */
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typedef struct {
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u32 tabsize;
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u32 strsize;
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u32 addr;
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u32 reserved;
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} aout_symbol_table_t;
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/* The section header table for ELF. */
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typedef struct {
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u32 num;
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u32 size;
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u32 addr;
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u32 shndx;
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} elf_section_header_table_t;
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/* The Multiboot information. */
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typedef struct {
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u32 flags;
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/* Valid if flags sets MBI_MEMLIMITS */
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u32 mem_lower;
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u32 mem_upper;
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/* Valid if flags sets MBI_BOOTDEV */
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u32 boot_device;
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/* Valid if flags sets MBI_CMDLINE */
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u32 cmdline;
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/* Valid if flags sets MBI_MODULES */
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u32 mods_count;
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u32 mods_addr;
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/* Valid if flags sets ... */
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union {
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aout_symbol_table_t aout_sym; /* ... MBI_AOUT_SYMS */
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elf_section_header_table_t elf_sec; /* ... MBI_ELF_SYMS */
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} u;
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/* Valid if flags sets MBI_MEMMAP */
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u32 mmap_length;
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u32 mmap_addr;
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/* Valid if flags sets MBI_DRIVES */
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u32 drives_length;
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u32 drives_addr;
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/* Valid if flags sets MBI_BIOSCONFIG */
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u32 config_table;
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/* Valid if flags sets MBI_LOADERNAME */
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u32 boot_loader_name;
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/* Valid if flags sets MBI_APM */
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u32 apm_table;
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} multiboot_info_t;
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/* The module structure. */
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typedef struct {
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u32 mod_start;
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u32 mod_end;
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u32 string;
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u32 reserved;
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} module_t;
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/* The memory map. Be careful that the offset 0 is base_addr_low
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but no size. */
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typedef struct {
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u32 size;
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u32 base_addr_low;
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u32 base_addr_high;
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u32 length_low;
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u32 length_high;
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u32 type;
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} memory_map_t;
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#endif /* __ASSEMBLY__ */
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#endif /* _BOOTSTUB_MB_H */
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