Enable boottests

grub-core/tests/boot/linux.init-i386.S

@@ -0,0 +1,80 @@
+/*
+ *  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 SYSCALL_WRITE 4
+#define SYSCALL_RESET 88
+#define SYSCALL_IOPL 110
+#define SYSCALL_EXIT 1
+#define SYSCALL_INT 0x80
+
+#define STDOUT 1
+#define SHUTDOWN_MAGIC1 0xfee1dead
+#define SHUTDOWN_MAGIC2 0x28121969
+#define SHUTDOWN_MAGIC3 0x4321fedc
+
+#define SHUTDOWN_PORT 0x8900
+
+	.text
+	.global start, _start
+_start:
+start:
+	/* write.  */
+	movl $SYSCALL_WRITE, %eax
+	movl $STDOUT, %ebx
+	leal message, %ecx
+	movl $(messageend-message), %edx
+	int $SYSCALL_INT
+
+	movl $SYSCALL_IOPL, %eax
+	movl $3, %ebx
+	int $SYSCALL_INT
+
+	movw $SHUTDOWN_PORT, %dx
+	movb $'S', %al
+	outb %al, %dx
+	movb $'h', %al
+	outb %al, %dx
+	movb $'u', %al
+	outb %al, %dx
+	movb $'t', %al
+	outb %al, %dx
+	movb $'d', %al
+	outb %al, %dx
+	movb $'o', %al
+	outb %al, %dx
+	movb $'w', %al
+	outb %al, %dx
+	movb $'n', %al
+	outb %al, %dx
+	
+	/* shutdown.  */
+	movl $SYSCALL_RESET, %eax
+	movl $SHUTDOWN_MAGIC1, %ebx
+	movl $SHUTDOWN_MAGIC2, %ecx
+	movl $SHUTDOWN_MAGIC3, %edx
+	int $SYSCALL_INT
+
+	/* exit (1). Shouldn't be reached.  */
+	movl $SYSCALL_EXIT, %eax
+	movl $1, %ebx
+	int $SYSCALL_INT
+	.data
+message:
+	.ascii "Boot Test Passed Successfully\n" SUCCESSFUL_BOOT_STRING "\n"
+messageend:
+