181 lines
5.3 KiB
C
181 lines
5.3 KiB
C
/* [ORIGIN: src/sys/arch/i386/include/... */
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/* $NetBSD: multiboot.h,v 1.8 2009/02/22 18:05:42 ahoka Exp $ */
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/*-
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* Copyright (c) 2005, 2006 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Julio M. Merino Vidal.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* multiboot.h
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*/
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#ifndef _MULTIBOOT_H
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#define _MULTIBOOT_H
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#include <stdint.h>
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#include <types.h>
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struct multiboot_info;
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extern struct multiboot_info mbi;
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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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#if !defined(_LOCORE)
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struct multiboot_header {
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uint32_t mh_magic;
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uint32_t mh_flags;
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uint32_t mh_checksum;
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/* Valid if mh_flags sets MULTIBOOT_HEADER_HAS_ADDR. */
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uint32_t mh_header_addr;
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uint32_t mh_load_addr;
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uint32_t mh_load_end_addr;
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uint32_t mh_bss_end_addr;
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uint32_t mh_entry_addr;
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/* Valid if mh_flags sets MULTIBOOT_HEADER_HAS_VBE. */
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uint32_t mh_mode_type;
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uint32_t mh_width;
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uint32_t mh_height;
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uint32_t mh_depth;
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};
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#endif /* !defined(_LOCORE) */
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/*
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* Symbols defined in locore.S.
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*/
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extern struct multiboot_header *Multiboot_Header;
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/*
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* Multiboot information structure.
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*/
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#define MULTIBOOT_INFO_MAGIC 0x2BADB002U
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#define MULTIBOOT_INFO_HAS_MEMORY 0x00000001U
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#define MULTIBOOT_INFO_HAS_BOOT_DEVICE 0x00000002U
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#define MULTIBOOT_INFO_HAS_CMDLINE 0x00000004U
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#define MULTIBOOT_INFO_HAS_MODS 0x00000008U
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#define MULTIBOOT_INFO_HAS_AOUT_SYMS 0x00000010U
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#define MULTIBOOT_INFO_HAS_ELF_SYMS 0x00000020U
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#define MULTIBOOT_INFO_HAS_MMAP 0x00000040U
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#define MULTIBOOT_INFO_HAS_DRIVES 0x00000080U
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#define MULTIBOOT_INFO_HAS_CONFIG_TABLE 0x00000100U
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#define MULTIBOOT_INFO_HAS_LOADER_NAME 0x00000200U
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#define MULTIBOOT_INFO_HAS_APM_TABLE 0x00000400U
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#define MULTIBOOT_INFO_HAS_VBE 0x00000800U
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#if !defined(_LOCORE)
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struct multiboot_info {
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uint32_t mi_flags;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_MEMORY. */
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uint32_t mi_mem_lower;
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uint32_t mi_mem_upper;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_BOOT_DEVICE. */
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uint8_t mi_boot_device_part3;
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uint8_t mi_boot_device_part2;
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uint8_t mi_boot_device_part1;
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uint8_t mi_boot_device_drive;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_CMDLINE. */
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uint32_t mi_cmdline;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_MODS. */
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uint32_t mi_mods_count;
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uint32_t mi_mods_addr;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_{AOUT,ELF}_SYMS. */
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uint32_t mi_elfshdr_num;
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uint32_t mi_elfshdr_size;
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uint32_t mi_elfshdr_addr;
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uint32_t mi_elfshdr_shndx;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_MMAP. */
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uint32_t mi_mmap_length;
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uint32_t mi_mmap_addr;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_DRIVES. */
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uint32_t mi_drives_length;
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uint32_t mi_drives_addr;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_CONFIG_TABLE. */
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uint32_t unused_mi_config_table;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_LOADER_NAME. */
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uint32_t mi_loader_name;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_APM. */
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uint32_t unused_mi_apm_table;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_VBE. */
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uint32_t unused_mi_vbe_control_info;
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uint32_t unused_mi_vbe_mode_info;
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uint32_t unused_mi_vbe_interface_seg;
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uint32_t unused_mi_vbe_interface_off;
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uint32_t unused_mi_vbe_interface_len;
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}__aligned(8);
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/*
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* Memory mapping. This describes an entry in the memory mappings table
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* as pointed to by mi_mmap_addr.
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*
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* Be aware that mm_size specifies the size of all other fields *except*
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* for mm_size. In order to jump between two different entries, you
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* have to count mm_size + 4 bytes.
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*/
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struct __attribute__((packed)) multiboot_mmap {
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uint32_t mm_size;
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uint64_t mm_base_addr;
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uint64_t mm_length;
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uint32_t mm_type;
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};
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/*
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* Modules. This describes an entry in the modules table as pointed
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* to by mi_mods_addr.
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*/
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struct multiboot_module {
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uint32_t mmo_start;
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uint32_t mmo_end;
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char * mmo_string;
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uint32_t mmo_reserved;
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};
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#endif /* !defined(_LOCORE) */
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#endif /* _MULTIBOOT_H */
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