135 lines
3.6 KiB
C
135 lines
3.6 KiB
C
/**
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* \file
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* \brief Definition of multiboot header formats.
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* Spec: http://www.gnu.org/software/grub/manual/multiboot/multiboot.html
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*/
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/*
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* Copyright (c) 2009, ETH Zurich.
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* All rights reserved.
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*
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* This file is distributed under the terms in the attached LICENSE file.
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* If you do not find this file, copies can be found by writing to:
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* ETH Zurich D-INFK, Universitaetstrasse 6, CH-8092 Zurich. Attn: Systems Group.
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*/
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#ifndef _MULTIBOOT_H
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#define _MULTIBOOT_H
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#define MULTIBOOT_HEADER_MAGIC 0x1BADB002
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#define MULTIBOOT_HEADER_FLAG_MODS_PGALIGNED 1
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#define MULTIBOOT_HEADER_FLAG_NEED_MEMINFO 2
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#define MULTIBOOT_HEADER_FLAG_NEED_VIDMODE 4
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#define MULTIBOOT_INFO_MAGIC 0x2BADB002
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#define MULTIBOOT_INFO_FLAG_HAS_MEMINFO 0x001
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#define MULTIBOOT_INFO_FLAG_HAS_BOOTDEV 0x002
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#define MULTIBOOT_INFO_FLAG_HAS_CMDLINE 0x004
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#define MULTIBOOT_INFO_FLAG_HAS_MODS 0x008
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#define MULTIBOOT_INFO_FLAG_HAS_AOUT_SYMS 0x010
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#define MULTIBOOT_INFO_FLAG_HAS_ELF_SYMS 0x020
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#define MULTIBOOT_INFO_FLAG_HAS_MMAP 0x040
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#define MULTIBOOT_INFO_FLAG_HAS_DRIVES 0x080
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#define MULTIBOOT_INFO_FLAG_HAS_CONFIG 0x100
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#define MULTIBOOT_INFO_FLAG_HAS_LOADERNAME 0x200
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#define MULTIBOOT_INFO_FLAG_HAS_APM 0x400
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#define MULTIBOOT_INFO_FLAG_HAS_VBE 0x800
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#if !defined(__ASSEMBLER__)
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struct multiboot_elf {
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uint32_t num;
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uint32_t size;
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uint32_t addr;
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uint32_t shndx;
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};
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/// Multiboot information structure passed from bootloader to OS
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struct multiboot_info {
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uint32_t flags;
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// if MULTIBOOT_INFO_FLAG_HAS_MEMINFO is set
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uint32_t mem_lower;
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uint32_t mem_upper;
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// if MULTIBOOT_INFO_FLAG_HAS_BOOTDEV
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uint32_t boot_device;
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// if MULTIBOOT_INFO_FLAG_HAS_CMDLINE
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uint32_t cmdline;
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// if MULTIBOOT_INFO_FLAG_HAS_MODS
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uint32_t mods_count;
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uint32_t mods_addr;
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union {
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// if MULTIBOOT_INFO_FLAG_HAS_AOUT_SYMS
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struct {
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uint32_t tabsize;
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uint32_t strsize;
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uint32_t addr;
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uint32_t reserved;
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} aout;
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// if MULTIBOOT_INFO_FLAG_HAS_ELF_SYMS
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struct multiboot_elf elf;
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} syms;
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// if MULTIBOOT_INFO_FLAG_HAS_MMAP
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uint32_t mmap_length;
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uint32_t mmap_addr;
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// if MULTIBOOT_INFO_FLAG_HAS_DRIVES
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uint32_t drives_length;
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uint32_t drives_addr;
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// if MULTIBOOT_INFO_FLAG_HAS_CONFIG
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uint32_t config_table;
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// if MULTIBOOT_INFO_FLAG_HAS_LOADERNAME
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uint32_t boot_loader_name;
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// if MULTIBOOT_INFO_FLAG_HAS_APM
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uint32_t apm_table;
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// if MULTIBOOT_INFO_FLAG_HAS_VBE
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uint32_t vbe_control_info;
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uint32_t vbe_mode_info;
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uint16_t vbe_mode;
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uint16_t vbe_interface_seg;
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uint16_t vbe_interface_off;
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uint16_t vbe_interface_len;
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#ifdef __k1om__
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uint8_t xeon_phi_id;
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#else
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uint8_t padding;
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#endif
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};
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#define MULTIBOOT_MODULE_SIZE(mod) ((mod).mod_end - (mod).mod_start)
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struct multiboot_modinfo {
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uint32_t mod_start;
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uint32_t mod_end;
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uint32_t string;
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uint32_t reserved;
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};
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#define MULTIBOOT_MEM_TYPE_RAM 1
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// special type for the host memory mapping of the xeon phi
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#define MULTIBOOT_MEM_TYPE_HOST_MEMORY 2
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// Memory-mapped devices
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#define MULTIBOOT_MEM_TYPE_DEVICE 13
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struct multiboot_mmap {
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uint32_t size;
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uint64_t base_addr;
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uint64_t length;
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uint32_t type;
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} __attribute__ ((packed));
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#endif /* !defined(__ASSEMBLER__) */
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#endif /* _MULTIBOOT_H */
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