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654fc59fe4
* kern/i386/pc/startup.S (grub_gate_a20): Rewritten for robustness. This routine now supports a BIOS call and System Control Port A to modify the gate A20. * include/grub/i386/pc/kernel.h (GRUB_KERNEL_MACHINE_RAW_SIZE): Increased to 0x440.
67 lines
2.1 KiB
C
67 lines
2.1 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2002,2003 Free Software Foundation, Inc.
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*
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* This program 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 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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 this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef KERNEL_MACHINE_HEADER
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#define KERNEL_MACHINE_HEADER 1
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/* The offset of GRUB_TOTAL_MODULE_SIZE. */
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#define GRUB_KERNEL_MACHINE_TOTAL_MODULE_SIZE 0x8
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/* The offset of GRUB_KERNEL_IMAGE_SIZE. */
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#define GRUB_KERNEL_MACHINE_KERNEL_IMAGE_SIZE 0xc
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/* The offset of GRUB_COMPRESSED_SIZE. */
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#define GRUB_KERNEL_MACHINE_COMPRESSED_SIZE 0x10
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/* The offset of GRUB_INSTALL_DOS_PART. */
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#define GRUB_KERNEL_MACHINE_INSTALL_DOS_PART 0x14
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/* The offset of GRUB_INSTALL_BSD_PART. */
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#define GRUB_KERNEL_MACHINE_INSTALL_BSD_PART 0x18
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/* The offset of GRUB_PREFIX. */
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#define GRUB_KERNEL_MACHINE_PREFIX 0x1c
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/* The size of the first region which won't be compressed. */
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#define GRUB_KERNEL_MACHINE_RAW_SIZE 0x440
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#ifndef ASM_FILE
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#include <grub/types.h>
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/* The DOS partition number of the installed partition. */
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extern grub_int32_t grub_install_dos_part;
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/* The BSD partition number of the installed partition. */
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extern grub_int32_t grub_install_bsd_part;
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/* The prefix which points to the directory where GRUB modules and its
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configuration file are located. */
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extern char grub_prefix[];
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/* The boot BIOS drive number. */
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extern grub_int32_t grub_boot_drive;
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/* The end address of the kernel. */
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extern grub_addr_t grub_end_addr;
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#endif /* ! ASM_FILE */
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#endif /* ! KERNEL_MACHINE_HEADER */
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