/*
 * This file and its contents are supplied under the terms of the
 * Common Development and Distribution License ("CDDL"), version 1.0.
 * You may only use this file in accordance with the terms of version
 * 1.0 of the CDDL.
 *
 * A full copy of the text of the CDDL should have accompanied this
 * source.  A copy of the CDDL is also available via the Internet at
 * http://www.illumos.org/license/CDDL.
 */

/*
 * Copyright 2022 Oxide Computer Company
 */

#include <sys/asm_linkage.h>
#include "payload_common.h"


ENTRY(start)
	/* Attempt to write to ROM, which should result in paging exit */
	xorl	%eax, %eax
	movq	%rax, MEM_LOC_ROM

	/* This should not be reached */
	movw    $IOP_TEST_RESULT, %dx
	movb    $TEST_RESULT_FAIL, %al
	outb    (%dx)
	hlt
SET_SIZE(start)