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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2010 Free Software Foundation, Inc.
*
* GRUB 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 3 of the License, or
* (at your option) any later version.
*
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#define MODE_RDRW 2
#define FLAGS_NONE 0
#define SYSCALL_OPEN 5
#define SYSCALL_WRITE 4
#define SYSCALL_RESET 55
#define SYSCALL_FSYNC 95
#define SYSCALL_ARCH 165
#define SYSCALL_EXIT 1
#define SYSCALL_ARCH_IOPERM 4
#define SYSCALL_INT 0x80
#define RESET_NOSYNC 0x4
#define RESET_HALT 0x8
#define RESET_POWEROFF 0x4000
.section ".init", "ax"
.global start,_start
start:
_start:
/* open. */
movl $SYSCALL_OPEN, %eax
pushl $FLAGS_NONE
pushl $MODE_RDRW
leal device, %ebx
pushl %ebx
pushl $0
int $SYSCALL_INT
addl $16, %esp
movl %eax, %ecx
/* write. */
movl $SYSCALL_WRITE, %eax
pushl $(messageend-message)
leal message, %ebx
pushl %ebx
pushl %ecx
pushl $0
int $SYSCALL_INT
addl $16, %esp
/* fsync. */
movl $SYSCALL_FSYNC, %eax
pushl %ecx
pushl $0
int $SYSCALL_INT
addl $8, %esp
/* IOPERM. */
movl $SYSCALL_ARCH, %eax
pushl $ioperm_arg1
pushl $SYSCALL_ARCH_IOPERM
pushl $0
int $SYSCALL_INT
addl $12, %esp
/* IOPERM. */
movl $SYSCALL_ARCH, %eax
pushl $ioperm_arg2
pushl $SYSCALL_ARCH_IOPERM
pushl $0
int $SYSCALL_INT
addl $12, %esp
#include "qemu-shutdown-x86.S"
/* shutdown. */
movl $SYSCALL_RESET, %eax
pushl $(RESET_POWEROFF|RESET_HALT|RESET_NOSYNC)
pushl $0
int $SYSCALL_INT
addl $8, %esp
/* exit (1). Shouldn't be reached. */
movl $SYSCALL_EXIT, %eax
pushl $1
pushl $0
int $SYSCALL_INT
device:
.ascii "/dev/console"
.byte 0
message:
.ascii "Boot Test Passed Successfully\n" SUCCESSFUL_BOOT_STRING "\n"
messageend:
ioperm_arg1:
.long 0xcf8
.long 8
.long 1
ioperm_arg2:
.long 0x7000
.long 8
.long 1
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