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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
#ifdef TARGET_NETBSD
#define SYSCALL_RESET 208
#elif defined (TARGET_OPENBSD)
#define SYSCALL_RESET 55
#else
#error unknown target
#endif
#define SYSCALL_EXIT 1
#define SYSCALL_ARCH 165
#define SYSCALL_INT 0x80
#define SYSCALL_ARCH_IOPL 2
#define RESET_NOSYNC 0x4
#define RESET_HALT 0x8
#define RESET_POWEROFF 0x800
.section ".init", "ax"
.global start,_start
start:
_start:
/* open. */
movq $SYSCALL_OPEN, %rax
leaq device, %rdi
movq $MODE_RDRW, %rsi
movq $FLAGS_NONE, %rdx
syscall
movq %rax, %rdi
/* write. */
movq $SYSCALL_WRITE, %rax
movq $(messageend-message), %rdx
leaq message, %rsi
syscall
/* IOPL. */
movq $SYSCALL_ARCH, %rax
movq $SYSCALL_ARCH_IOPL, %rdi
leaq iopl_arg, %rsi
syscall
#include "qemu-shutdown-x86.S"
/* shutdown. */
movq $SYSCALL_RESET, %rax
movq $(RESET_POWEROFF|RESET_HALT|RESET_NOSYNC), %rdi
movq $0, %rsi
syscall
/* exit (1). Shouldn't be reached. */
movq $SYSCALL_EXIT, %rax
movq $1, %rdi
syscall
.section ".fini", "ax"
1: jmp 1b
.section ".text", "ax"
1: jmp 1b
/* This section is needed for NetBSD to identify the binary. */
.section ".note.netbsd.ident", "a"
.long 0x7
.long 0x4
.long 0x1
.ascii "NetBSD"
.byte 0
.data
device:
.ascii "/dev/console"
.byte 0
message:
.ascii "Boot Test Passed Successfully\n" SUCCESSFUL_BOOT_STRING "\n"
messageend:
iopl_arg:
.long 3
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