xref: /illumos-gate/usr/src/cmd/bhyve/post.c (revision bf21cd9318e0a3a51b7f02c14a7c1b1aef2dc861)
1*bf21cd93STycho Nightingale /*-
2*bf21cd93STycho Nightingale  * Copyright (c) 2011 NetApp, Inc.
3*bf21cd93STycho Nightingale  * All rights reserved.
4*bf21cd93STycho Nightingale  *
5*bf21cd93STycho Nightingale  * Redistribution and use in source and binary forms, with or without
6*bf21cd93STycho Nightingale  * modification, are permitted provided that the following conditions
7*bf21cd93STycho Nightingale  * are met:
8*bf21cd93STycho Nightingale  * 1. Redistributions of source code must retain the above copyright
9*bf21cd93STycho Nightingale  *    notice, this list of conditions and the following disclaimer.
10*bf21cd93STycho Nightingale  * 2. Redistributions in binary form must reproduce the above copyright
11*bf21cd93STycho Nightingale  *    notice, this list of conditions and the following disclaimer in the
12*bf21cd93STycho Nightingale  *    documentation and/or other materials provided with the distribution.
13*bf21cd93STycho Nightingale  *
14*bf21cd93STycho Nightingale  * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
15*bf21cd93STycho Nightingale  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16*bf21cd93STycho Nightingale  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17*bf21cd93STycho Nightingale  * ARE DISCLAIMED.  IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
18*bf21cd93STycho Nightingale  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19*bf21cd93STycho Nightingale  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20*bf21cd93STycho Nightingale  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21*bf21cd93STycho Nightingale  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22*bf21cd93STycho Nightingale  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23*bf21cd93STycho Nightingale  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24*bf21cd93STycho Nightingale  * SUCH DAMAGE.
25*bf21cd93STycho Nightingale  *
26*bf21cd93STycho Nightingale  * $FreeBSD: head/usr.sbin/bhyve/post.c 260206 2014-01-02 21:26:59Z jhb $
27*bf21cd93STycho Nightingale  */
28*bf21cd93STycho Nightingale 
29*bf21cd93STycho Nightingale #include <sys/cdefs.h>
30*bf21cd93STycho Nightingale __FBSDID("$FreeBSD: head/usr.sbin/bhyve/post.c 260206 2014-01-02 21:26:59Z jhb $");
31*bf21cd93STycho Nightingale 
32*bf21cd93STycho Nightingale #include <sys/types.h>
33*bf21cd93STycho Nightingale 
34*bf21cd93STycho Nightingale #include <assert.h>
35*bf21cd93STycho Nightingale 
36*bf21cd93STycho Nightingale #include "inout.h"
37*bf21cd93STycho Nightingale #include "pci_lpc.h"
38*bf21cd93STycho Nightingale 
39*bf21cd93STycho Nightingale static int
40*bf21cd93STycho Nightingale post_data_handler(struct vmctx *ctx, int vcpu, int in, int port, int bytes,
41*bf21cd93STycho Nightingale 		  uint32_t *eax, void *arg)
42*bf21cd93STycho Nightingale {
43*bf21cd93STycho Nightingale 	assert(in == 1);
44*bf21cd93STycho Nightingale 
45*bf21cd93STycho Nightingale 	if (bytes != 1)
46*bf21cd93STycho Nightingale 		return (-1);
47*bf21cd93STycho Nightingale 
48*bf21cd93STycho Nightingale 	*eax = 0xff;		/* return some garbage */
49*bf21cd93STycho Nightingale 	return (0);
50*bf21cd93STycho Nightingale }
51*bf21cd93STycho Nightingale 
52*bf21cd93STycho Nightingale INOUT_PORT(post, 0x84, IOPORT_F_IN, post_data_handler);
53*bf21cd93STycho Nightingale SYSRES_IO(0x84, 1);
54