?? multiboot.h
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/* 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 */
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