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