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/*
* Copyright (c) 2010, 2012 Richard Braun.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef X86_MULTIBOOT_H
#define X86_MULTIBOOT_H
/*
* Magic number provided by the OS to the boot loader.
*/
#define MULTIBOOT_OS_MAGIC 0x1badb002
/*
* Multiboot flags requesting services from the boot loader.
*/
#define MULTIBOOT_OS_MEMORY_INFO 0x2
#define MULTIBOOT_OS_FLAGS MULTIBOOT_OS_MEMORY_INFO
/*
* Magic number to identify a multiboot compliant boot loader.
*/
#define MULTIBOOT_LOADER_MAGIC 0x2badb002
/*
* Multiboot flags set by the boot loader.
*/
#define MULTIBOOT_LOADER_MEMORY 0x01
#define MULTIBOOT_LOADER_CMDLINE 0x04
#define MULTIBOOT_LOADER_MODULES 0x08
#define MULTIBOOT_LOADER_SHDR 0x20
#define MULTIBOOT_LOADER_MMAP 0x40
#ifndef __ASSEMBLER__
#include <stdint.h>
#include <kern/macros.h>
/*
* A multiboot module.
*/
struct multiboot_raw_module {
uint32_t mod_start;
uint32_t mod_end;
uint32_t string;
uint32_t reserved;
} __packed;
/*
* Memory map entry.
*/
struct multiboot_raw_mmap_entry {
uint32_t size;
uint64_t base_addr;
uint64_t length;
uint32_t type;
} __packed;
/*
* Multiboot information structure as passed by the boot loader.
*/
struct multiboot_raw_info {
uint32_t flags;
uint32_t mem_lower;
uint32_t mem_upper;
uint32_t unused0;
uint32_t cmdline;
uint32_t mods_count;
uint32_t mods_addr;
uint32_t shdr_num;
uint32_t shdr_size;
uint32_t shdr_addr;
uint32_t shdr_strndx;
uint32_t mmap_length;
uint32_t mmap_addr;
uint32_t unused1[9];
} __packed;
/*
* Versions of the multiboot structures suitable for use with 64-bit pointers.
*/
struct multiboot_module {
void *mod_start;
void *mod_end;
char *string;
};
struct multiboot_info {
uint32_t flags;
struct multiboot_module *mods_addr;
uint32_t mods_count;
};
#endif /* __ASSEMBLER__ */
#endif /* X86_MULTIBOOT_H */
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