e5dfe7775a
for powerpc & i386-pc. This patch was more so started by Hollis Blanchard getting multiboot 2 working for powerpc and I added to it and cleaned it up. One of the ideas with this patch is to keep everything under one command for the user. So instead of having a "multiboot2" & "module2" command, I created a proxy like mechanism so that you have only one command for both multiboot 1 & 2 ... "multiboot". This is where "loader/multiboot_loader.c" comes from. I could have integrated things more but I figure the current approach will less likely break anything. So if your OS is multiboot 2 capable, the user would do the following to load it up from a grub prompt: grub> multiboot <location of kernel> <kernel args> grub> module <some image> <multiboot tag> <image arguments> grub> module <isome mage> <multiboot tag> <image arguments> grub ..... The other thing that this patch does is it begins to make the multiboot 1 code a bit more architecture agnostic so IF someone wanted to implement it on another architecture they can. A bit of file moving around and definition renaming is also apart of this patch. I have also taken the time to make sure that it does not break multiboot 1 loading on i386-pc. But mulitboot 2 may still need a little more testing and work for i386-pc. Powerpc multiboot 2 has been heavily tested and does work.
119 lines
2.9 KiB
C
119 lines
2.9 KiB
C
/* multiboot.h - multiboot header file with grub definitions. */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2003,2007 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 GRUB_MULTIBOOT_HEADER
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#define GRUB_MULTIBOOT_HEADER 1
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#include <multiboot.h>
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void grub_multiboot (int argc, char *argv[]);
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void grub_module (int argc, char *argv[]);
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#ifndef ASM_FILE
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#include <grub/types.h>
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struct grub_multiboot_header
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{
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/* Must be MULTIBOOT_MAGIC - see above. */
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grub_uint32_t magic;
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/* Feature flags. */
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grub_uint32_t flags;
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/* The above fields plus this one must equal 0 mod 2^32. */
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grub_uint32_t checksum;
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/* These are only valid if MULTIBOOT_AOUT_KLUDGE is set. */
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grub_uint32_t header_addr;
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grub_uint32_t load_addr;
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grub_uint32_t load_end_addr;
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grub_uint32_t bss_end_addr;
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grub_uint32_t entry_addr;
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/* These are only valid if MULTIBOOT_VIDEO_MODE is set. */
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grub_uint32_t mode_type;
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grub_uint32_t width;
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grub_uint32_t height;
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grub_uint32_t depth;
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};
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struct grub_multiboot_info
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{
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/* Multiboot info version number */
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grub_uint32_t flags;
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/* Available memory from BIOS */
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grub_uint32_t mem_lower;
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grub_uint32_t mem_upper;
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/* "root" partition */
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grub_uint32_t boot_device;
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/* Kernel command line */
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grub_uint32_t cmdline;
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/* Boot-Module list */
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grub_uint32_t mods_count;
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grub_uint32_t mods_addr;
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grub_uint32_t syms[4];
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/* Memory Mapping buffer */
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grub_uint32_t mmap_length;
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grub_uint32_t mmap_addr;
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/* Drive Info buffer */
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grub_uint32_t drives_length;
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grub_uint32_t drives_addr;
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/* ROM configuration table */
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grub_uint32_t config_table;
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/* Boot Loader Name */
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grub_uint32_t boot_loader_name;
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/* APM table */
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grub_uint32_t apm_table;
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/* Video */
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grub_uint32_t vbe_control_info;
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grub_uint32_t vbe_mode_info;
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grub_uint16_t vbe_mode;
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grub_uint16_t vbe_interface_seg;
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grub_uint16_t vbe_interface_off;
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grub_uint16_t vbe_interface_len;
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};
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struct grub_mod_list
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{
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/* the memory used goes from bytes 'mod_start' to 'mod_end-1' inclusive */
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grub_uint32_t mod_start;
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grub_uint32_t mod_end;
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/* Module command line */
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grub_uint32_t cmdline;
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/* padding to take it to 16 bytes (must be zero) */
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grub_uint32_t pad;
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};
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#endif /* ! ASM_FILE */
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#endif /* ! GRUB_MULTIBOOT_HEADER */
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