/* [ORIGIN: src/sys/arch/i386/include/... */ /* $NetBSD: multiboot.h,v 1.8 2009/02/22 18:05:42 ahoka Exp $ */ /*- * Copyright (c) 2005, 2006 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Julio M. Merino Vidal. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * multiboot.h */ #ifndef _MULTIBOOT_H #define _MULTIBOOT_H #include struct multiboot_info; extern struct multiboot_info mbi; // ======================================================================== /* * 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 #if !defined(_LOCORE) struct multiboot_header { uint32_t mh_magic; uint32_t mh_flags; uint32_t mh_checksum; /* Valid if mh_flags sets MULTIBOOT_HEADER_HAS_ADDR. */ uint32_t mh_header_addr; uint32_t mh_load_addr; uint32_t mh_load_end_addr; uint32_t mh_bss_end_addr; uint32_t mh_entry_addr; /* Valid if mh_flags sets MULTIBOOT_HEADER_HAS_VBE. */ uint32_t mh_mode_type; uint32_t mh_width; uint32_t mh_height; uint32_t mh_depth; }; #endif /* !defined(_LOCORE) */ /* * Symbols defined in locore.S. */ extern struct multiboot_header *Multiboot_Header; // ======================================================================== /* * Multiboot information structure. */ #define MULTIBOOT_INFO_MAGIC 0x2BADB002U #define MULTIBOOT_INFO_HAS_MEMORY 0x00000001U #define MULTIBOOT_INFO_HAS_BOOT_DEVICE 0x00000002U #define MULTIBOOT_INFO_HAS_CMDLINE 0x00000004U #define MULTIBOOT_INFO_HAS_MODS 0x00000008U #define MULTIBOOT_INFO_HAS_AOUT_SYMS 0x00000010U #define MULTIBOOT_INFO_HAS_ELF_SYMS 0x00000020U #define MULTIBOOT_INFO_HAS_MMAP 0x00000040U #define MULTIBOOT_INFO_HAS_DRIVES 0x00000080U #define MULTIBOOT_INFO_HAS_CONFIG_TABLE 0x00000100U #define MULTIBOOT_INFO_HAS_LOADER_NAME 0x00000200U #define MULTIBOOT_INFO_HAS_APM_TABLE 0x00000400U #define MULTIBOOT_INFO_HAS_VBE 0x00000800U #if !defined(_LOCORE) struct multiboot_info { uint32_t mi_flags; /* Valid if mi_flags sets MULTIBOOT_INFO_HAS_MEMORY. */ uint32_t mi_mem_lower; uint32_t mi_mem_upper; /* Valid if mi_flags sets MULTIBOOT_INFO_HAS_BOOT_DEVICE. */ uint8_t mi_boot_device_part3; uint8_t mi_boot_device_part2; uint8_t mi_boot_device_part1; uint8_t mi_boot_device_drive; /* Valid if mi_flags sets MULTIBOOT_INFO_HAS_CMDLINE. */ uint32_t mi_cmdline; /* Valid if mi_flags sets MULTIBOOT_INFO_HAS_MODS. */ uint32_t mi_mods_count; uint32_t mi_mods_addr; /* Valid if mi_flags sets MULTIBOOT_INFO_HAS_{AOUT,ELF}_SYMS. */ uint32_t mi_elfshdr_num; uint32_t mi_elfshdr_size; uint32_t mi_elfshdr_addr; uint32_t mi_elfshdr_shndx; /* Valid if mi_flags sets MULTIBOOT_INFO_HAS_MMAP. */ uint32_t mi_mmap_length; uint32_t mi_mmap_addr; /* Valid if mi_flags sets MULTIBOOT_INFO_HAS_DRIVES. */ uint32_t mi_drives_length; uint32_t mi_drives_addr; /* Valid if mi_flags sets MULTIBOOT_INFO_HAS_CONFIG_TABLE. */ uint32_t unused_mi_config_table; /* Valid if mi_flags sets MULTIBOOT_INFO_HAS_LOADER_NAME. */ uint32_t mi_loader_name; /* Valid if mi_flags sets MULTIBOOT_INFO_HAS_APM. */ uint32_t unused_mi_apm_table; /* Valid if mi_flags sets MULTIBOOT_INFO_HAS_VBE. */ uint32_t unused_mi_vbe_control_info; uint32_t unused_mi_vbe_mode_info; uint32_t unused_mi_vbe_interface_seg; uint32_t unused_mi_vbe_interface_off; uint32_t unused_mi_vbe_interface_len; }; /* * Memory mapping. This describes an entry in the memory mappings table * as pointed to by mi_mmap_addr. * * Be aware that mm_size specifies the size of all other fields *except* * for mm_size. In order to jump between two different entries, you * have to count mm_size + 4 bytes. */ struct __attribute__((packed)) multiboot_mmap { uint32_t mm_size; uint64_t mm_base_addr; uint64_t mm_length; uint32_t mm_type; }; /* * Modules. This describes an entry in the modules table as pointed * to by mi_mods_addr. */ struct multiboot_module { uint32_t mmo_start; uint32_t mmo_end; char * mmo_string; uint32_t mmo_reserved; }; #endif /* !defined(_LOCORE) */ // ======================================================================== #endif /* _MULTIBOOT_H */