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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 _I386_MULTIBOOT_H
#define _I386_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_MMAP 0x40
#ifndef __ASSEMBLY__
#include <lib/macros.h>
#include <lib/stdint.h>
/*
* A multiboot module.
*/
struct multiboot_module {
void *mod_start;
void *mod_end;
char *string;
uint32_t reserved;
} __packed;
/*
* Memory map entry.
*/
struct multiboot_mmap_entry {
uint32_t size;
uint64_t base_addr;
uint64_t length;
uint32_t type;
} __packed;
/*
* Multiboot information structure to get data passed by the boot loader.
*/
struct multiboot_info {
uint32_t flags;
uint32_t mem_lower;
uint32_t mem_upper;
uint32_t unused0;
char *cmdline;
uint32_t mods_count;
struct multiboot_module *mods_addr;
uint32_t unused1[4];
uint32_t mmap_length;
void *mmap_addr;
uint32_t unused2[9];
} __packed;
#endif /* __ASSEMBLY__ */
#endif /* _I386_MULTIBOOT_H */
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