/* multiboot.h - multiboot header file. *//* *  GRUB  --  GRand Unified Bootloader *  Copyright (C) 2003  Free Software Foundation, Inc. * *  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 2 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, write to the Free Software *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */#ifndef GRUB_MULTIBOOT_MACHINE_HEADER#define GRUB_MULTIBOOT_MACHINE_HEADER 1/* How many bytes from the start of the file we search for the header.  */#define GRUB_MB_SEARCH                 8192/* The magic field should contain this.  */#define GRUB_MB_MAGIC                  0x1BADB002/* This should be in %eax.  */#define GRUB_MB_MAGIC2                 0x2BADB002/* The bits in the required part of flags field we don't support.  */#define GRUB_MB_UNSUPPORTED            0x0000fffc/* Alignment of multiboot modules.  */#define GRUB_MB_MOD_ALIGN              0x00001000/*  * Flags set in the 'flags' member of the multiboot header. *//* Align all boot modules on i386 page (4KB) boundaries.  */#define GRUB_MB_PAGE_ALIGN		0x00000001/* Must pass memory information to OS.  */#define GRUB_MB_MEMORY_INFO		0x00000002/* Must pass video information to OS.  */#define GRUB_MB_VIDEO_MODE		0x00000004/* This flag indicates the use of the address fields in the header.  */#define GRUB_MB_AOUT_KLUDGE		0x00010000/* *  Flags to be set in the 'flags' member of the multiboot info structure. *//* is there basic lower/upper memory information? */#define GRUB_MB_INFO_MEMORY		0x00000001/* is there a boot device set? */#define GRUB_MB_INFO_BOOTDEV		0x00000002/* is the command-line defined? */#define GRUB_MB_INFO_CMDLINE		0x00000004/* are there modules to do something with? */#define GRUB_MB_INFO_MODS		0x00000008/* These next two are mutually exclusive *//* is there a symbol table loaded? */#define GRUB_MB_INFO_AOUT_SYMS		0x00000010/* is there an ELF section header table? */#define GRUB_MB_INFO_ELF_SHDR		0x00000020/* is there a full memory map? */#define GRUB_MB_INFO_MEM_MAP		0x00000040/* Is there drive info?  */#define GRUB_MB_INFO_DRIVE_INFO		0x00000080/* Is there a config table?  */#define GRUB_MB_INFO_CONFIG_TABLE	0x00000100/* Is there a boot loader name?  */#define GRUB_MB_INFO_BOOT_LOADER_NAME	0x00000200/* Is there a APM table?  */#define GRUB_MB_INFO_APM_TABLE		0x00000400/* Is there video information?  */#define GRUB_MB_INFO_VIDEO_INFO		0x00000800#ifndef ASM_FILE#include <grub/types.h>struct grub_multiboot_header{   /* Must be GRUB_MB_MAGIC - see above.  */  grub_uint32_t magic;  /* Feature flags.  */  grub_uint32_t flags;  /* The above fields plus this one must equal 0 mod 2^32. */  grub_uint32_t checksum;    /* These are only valid if GRUB_MB_AOUT_KLUDGE is set.  */  grub_uint32_t header_addr;  grub_uint32_t load_addr;  grub_uint32_t load_end_addr;  grub_uint32_t bss_end_addr;  grub_uint32_t entry_addr;  /* These are only valid if GRUB_MB_VIDEO_MODE is set.  */  grub_uint32_t mode_type;  grub_uint32_t width;  grub_uint32_t height;  grub_uint32_t depth;};struct grub_multiboot_info{  /* Multiboot info version number */  grub_uint32_t flags;    /* Available memory from BIOS */  grub_uint32_t mem_lower;  grub_uint32_t mem_upper;    /* "root" partition */  grub_uint32_t boot_device;    /* Kernel command line */  grub_uint32_t cmdline;    /* Boot-Module list */  grub_uint32_t mods_count;  grub_uint32_t mods_addr;    grub_uint32_t syms[4];    /* Memory Mapping buffer */  grub_uint32_t mmap_length;  grub_uint32_t mmap_addr;    /* Drive Info buffer */  grub_uint32_t drives_length;  grub_uint32_t drives_addr;    /* ROM configuration table */  grub_uint32_t config_table;    /* Boot Loader Name */  grub_uint32_t boot_loader_name;  /* APM table */  grub_uint32_t apm_table;  /* Video */  grub_uint32_t vbe_control_info;  grub_uint32_t vbe_mode_info;  grub_uint16_t vbe_mode;  grub_uint16_t vbe_interface_seg;  grub_uint16_t vbe_interface_off;  grub_uint16_t vbe_interface_len;};struct grub_mod_list{  /* the memory used goes from bytes 'mod_start' to 'mod_end-1' inclusive */  grub_uint32_t mod_start;  grub_uint32_t mod_end;    /* Module command line */  grub_uint32_t cmdline;    /* padding to take it to 16 bytes (must be zero) */  grub_uint32_t pad;};#endif /* ! ASM_FILE */#endif /* ! GRUB_MULTIBOOT_MACHINE_HEADER */