b1c4ba4ab6
Due to the ABI we are using we have to use the earm architecture moniker for the build system to behave correctly. This involves then some headers to move around. There is also a few related Makefile updates as well as minor source code corrections.
352 lines
9.8 KiB
C
352 lines
9.8 KiB
C
/* $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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#ifndef __MULTIBOOT_H__
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#define __MULTIBOOT_H__
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#if !defined(_KERNEL) && defined(_STANDALONE)
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/* --------------------------------------------------------------------- */
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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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paddr_t mh_header_addr;
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paddr_t mh_load_addr;
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paddr_t mh_load_end_addr;
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paddr_t mh_bss_end_addr;
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paddr_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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#if !defined(_LOCORE) && defined(_KERNEL)
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extern struct multiboot_header *Multiboot_Header;
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#endif /* !defined(_LOCORE) && defined(_KERNEL) */
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/* --------------------------------------------------------------------- */
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/*
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* Multiboot information structure.
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*/
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#define MULTIBOOT_INFO_MAGIC 0x2BADB002
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#define MULTIBOOT_INFO_HAS_MEMORY 0x00000001
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#define MULTIBOOT_INFO_HAS_BOOT_DEVICE 0x00000002
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#define MULTIBOOT_INFO_HAS_CMDLINE 0x00000004
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#define MULTIBOOT_INFO_HAS_MODS 0x00000008
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#define MULTIBOOT_INFO_HAS_AOUT_SYMS 0x00000010
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#define MULTIBOOT_INFO_HAS_ELF_SYMS 0x00000020
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#define MULTIBOOT_INFO_HAS_MMAP 0x00000040
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#define MULTIBOOT_INFO_HAS_DRIVES 0x00000080
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#define MULTIBOOT_INFO_HAS_CONFIG_TABLE 0x00000100
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#define MULTIBOOT_INFO_HAS_LOADER_NAME 0x00000200
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#define MULTIBOOT_INFO_HAS_APM_TABLE 0x00000400
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#define MULTIBOOT_INFO_HAS_VBE 0x00000800
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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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char * 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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vaddr_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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vaddr_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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vaddr_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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vaddr_t mi_drives_addr;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_CONFIG_TABLE. */
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void * unused_mi_config_table;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_LOADER_NAME. */
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char * mi_loader_name;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_APM. */
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void * unused_mi_apm_table;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_VBE. */
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void * unused_mi_vbe_control_info;
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void * unused_mi_vbe_mode_info;
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paddr_t unused_mi_vbe_interface_seg;
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paddr_t unused_mi_vbe_interface_off;
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uint32_t unused_mi_vbe_interface_len;
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};
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/* --------------------------------------------------------------------- */
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/*
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* Drive information. This describes an entry in the drives table as
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* pointed to by mi_drives_addr.
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*/
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struct multiboot_drive {
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uint32_t md_length;
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uint8_t md_number;
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uint8_t md_mode;
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uint16_t md_cylinders;
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uint8_t md_heads;
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uint8_t md_sectors;
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/* The variable-sized 'ports' field comes here, so this structure
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* can be longer. */
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};
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/* --------------------------------------------------------------------- */
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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 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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/* --------------------------------------------------------------------- */
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/*
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* Prototypes for public functions defined in multiboot.c.
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*/
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#if !defined(_LOCORE) && defined(_KERNEL)
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void multiboot_pre_reloc(struct multiboot_info *);
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void multiboot_post_reloc(void);
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void multiboot_print_info(void);
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bool multiboot_ksyms_addsyms_elf(void);
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#endif /* !defined(_LOCORE) */
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/* --------------------------------------------------------------------- */
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#else /* !defined(_KERNEL) && defined(_STANDALONE) */
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/* LSC FIXME: OLD MINIX DEFINITION: should be removed and replace with
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definition above... */
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#define MULTIBOOT_HEADER_MAGIC 0x1BADB002
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#define MULTIBOOT_BOOTLOADER_MAGIC 0x2BADB002
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/* Must pass memory information to OS. */
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#define MULTIBOOT_PAGE_ALIGN 0x00000001
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#define MULTIBOOT_MEMORY_INFO 0x00000002
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#define MULTIBOOT_VIDEO_MODE 0x00000004
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#define MULTIBOOT_AOUT_KLUDGE 0x00010000
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/* consts used for Multiboot pre-init */
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#define MULTIBOOT_VIDEO_MODE_EGA 1
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#define MULTIBOOT_VIDEO_BUFFER 0xB8000
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/* Usable lower memory chunk has a upper bound */
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#define MULTIBOOT_LOWER_MEM_MAX 0x7f800
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#define MULTIBOOT_CONSOLE_LINES 25
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#define MULTIBOOT_CONSOLE_COLS 80
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#define MULTIBOOT_VIDEO_BUFFER_BYTES \
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(MULTIBOOT_CONSOLE_LINES*MULTIBOOT_CONSOLE_COLS*2)
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#define MULTIBOOT_STACK_SIZE 4096
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#define MULTIBOOT_PARAM_BUF_SIZE 1024
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#define MULTIBOOT_MAX_MODS 20
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/* Flags to be set in the ’flags’ member of the multiboot info structure. */
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#define MULTIBOOT_INFO_MEMORY 0x00000001
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#define MULTIBOOT_INFO_MEM_MAP 0x00000040
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/* Is there a boot device set? */
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#define MULTIBOOT_INFO_BOOTDEV 0x00000002
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/* Is the command-line defined? */
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#define MULTIBOOT_INFO_CMDLINE 0x00000004
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/* Are there modules to do something with? */
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#define MULTIBOOT_INFO_MODS 0x00000008
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#define MULTIBOOT_HIGH_MEM_BASE 0x100000
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#ifndef __ASSEMBLY__
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#include <sys/types.h>
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/* The symbol table for a.out. */
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struct multiboot_aout_symbol_table
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{
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u32_t tabsize;
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u32_t strsize;
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u32_t addr;
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u32_t reserved;
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};
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/* The section header table for ELF. */
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struct multiboot_elf_section_header_table
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{
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u32_t num;
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u32_t size;
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u32_t addr;
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u32_t shndx;
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};
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typedef struct multiboot_elf_section_header_table multiboot_elf_section_header_table_t;
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typedef struct multiboot_aout_symbol_table multiboot_aout_symbol_table_t;
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struct multiboot_info
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{
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/* Multiboot info version number */
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u32_t flags;
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/* Available memory from BIOS */
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u32_t mem_lower_unused; /* minix uses memmap instead */
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u32_t mem_upper_unused;
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/* "root" partition */
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u32_t boot_device;
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/* Kernel command line */
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u32_t cmdline;
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/* Boot-Module list */
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u32_t mods_count;
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u32_t mods_addr;
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union
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{
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multiboot_aout_symbol_table_t aout_sym;
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multiboot_elf_section_header_table_t elf_sec;
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} u;
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/* Memory Mapping buffer */
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u32_t mmap_length;
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u32_t mmap_addr;
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/* Drive Info buffer */
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u32_t drives_length;
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u32_t drives_addr;
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/* ROM configuration table */
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u32_t config_table;
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/* Boot Loader Name */
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u32_t boot_loader_name;
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/* APM table */
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u32_t apm_table;
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/* Video */
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u32_t vbe_control_info;
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u32_t vbe_mode_info;
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u16_t vbe_mode;
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u16_t vbe_interface_seg;
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u16_t vbe_interface_off;
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u16_t vbe_interface_len;
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};
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typedef struct multiboot_info multiboot_info_t;
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struct multiboot_mod_list
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{
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/* Memory used goes from bytes 'mod_start' to 'mod_end-1' inclusive */
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u32_t mod_start;
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u32_t mod_end;
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/* Module command line */
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u32_t cmdline;
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/* Pad struct to 16 bytes (must be zero) */
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u32_t pad;
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};
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typedef struct multiboot_mod_list multiboot_module_t;
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#define MULTIBOOT_MEMORY_AVAILABLE 1
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#define MULTIBOOT_MEMORY_RESERVED 2
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struct multiboot_mmap_entry
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{
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u32_t size;
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u64_t addr;
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u64_t len;
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#define MULTIBOOT_MEMORY_AVAILABLE 1
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#define MULTIBOOT_MEMORY_RESERVED 2
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u32_t type;
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} __attribute__((packed));
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typedef struct multiboot_mmap_entry multiboot_memory_map_t;
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#endif /* __ASSEMBLY__ */
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#endif /* !defined(_KERNEL) && defined(_STANDALONE) */
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#endif /* __MULTIBOOT_H__ */
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