a455f472aa
* include/multiboot.h (MULTIBOOT_INFO_ALIGN): New macro.
* loader/i386/pc/multiboot.c (grub_multiboot): Include the MBI
in our relocation, instead of using it directly from heap. Also
use `MULTIBOOT_INFO_ALIGN' to ensure it is aligned.
95 lines
3 KiB
C
95 lines
3 KiB
C
/* multiboot.h - multiboot header file. */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2003,2007,2009 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MULTIBOOT_HEADER
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#define MULTIBOOT_HEADER 1
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/* How many bytes from the start of the file we search for the header. */
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#define MULTIBOOT_SEARCH 8192
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/* The magic field should contain this. */
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#define MULTIBOOT_MAGIC 0x1BADB002
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/* This should be in %eax. */
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#define MULTIBOOT_MAGIC2 0x2BADB002
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/* The bits in the required part of flags field we don't support. */
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#define MULTIBOOT_UNSUPPORTED 0x0000fffc
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/* Alignment of multiboot modules. */
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#define MULTIBOOT_MOD_ALIGN 0x00001000
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/* Alignment of the multiboot info structure. */
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#define MULTIBOOT_INFO_ALIGN 0x00000004
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/*
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* Flags set in the 'flags' member of the multiboot header.
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*/
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/* Align all boot modules on i386 page (4KB) boundaries. */
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#define MULTIBOOT_PAGE_ALIGN 0x00000001
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/* Must pass memory information to OS. */
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#define MULTIBOOT_MEMORY_INFO 0x00000002
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/* Must pass video information to OS. */
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#define MULTIBOOT_VIDEO_MODE 0x00000004
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/* This flag indicates the use of the address fields in the header. */
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#define MULTIBOOT_AOUT_KLUDGE 0x00010000
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/*
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* Flags to be set in the 'flags' member of the multiboot info structure.
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*/
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/* is there basic lower/upper memory information? */
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#define MULTIBOOT_INFO_MEMORY 0x00000001
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/* is there a boot device set? */
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#define MULTIBOOT_INFO_BOOTDEV 0x00000002
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/* is the command-line defined? */
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#define MULTIBOOT_INFO_CMDLINE 0x00000004
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/* are there modules to do something with? */
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#define MULTIBOOT_INFO_MODS 0x00000008
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/* These next two are mutually exclusive */
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/* is there a symbol table loaded? */
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#define MULTIBOOT_INFO_AOUT_SYMS 0x00000010
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/* is there an ELF section header table? */
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#define MULTIBOOT_INFO_ELF_SHDR 0x00000020
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/* is there a full memory map? */
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#define MULTIBOOT_INFO_MEM_MAP 0x00000040
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/* Is there drive info? */
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#define MULTIBOOT_INFO_DRIVE_INFO 0x00000080
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/* Is there a config table? */
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#define MULTIBOOT_INFO_CONFIG_TABLE 0x00000100
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/* Is there a boot loader name? */
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#define MULTIBOOT_INFO_BOOT_LOADER_NAME 0x00000200
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/* Is there a APM table? */
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#define MULTIBOOT_INFO_APM_TABLE 0x00000400
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/* Is there video information? */
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#define MULTIBOOT_INFO_VIDEO_INFO 0x00000800
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#endif /* ! MULTIBOOT_HEADER */
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