1/*-
2 * Copyright (c) 2011 NetApp, Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: releng/11.0/usr.sbin/bhyve/post.c 260206 2014-01-02 21:26:59Z jhb $
27 */
28
29#include <sys/cdefs.h>
30__FBSDID("$FreeBSD: releng/11.0/usr.sbin/bhyve/post.c 260206 2014-01-02 21:26:59Z jhb $");
31
32#include <sys/types.h>
33
34#include <assert.h>
35
36#include "inout.h"
37#include "pci_lpc.h"
38
39static int
40post_data_handler(struct vmctx *ctx, int vcpu, int in, int port, int bytes,
41		  uint32_t *eax, void *arg)
42{
43	assert(in == 1);
44
45	if (bytes != 1)
46		return (-1);
47
48	*eax = 0xff;		/* return some garbage */
49	return (0);
50}
51
52INOUT_PORT(post, 0x84, IOPORT_F_IN, post_data_handler);
53SYSRES_IO(0x84, 1);
54