xref: /illumos-gate/usr/src/cmd/bhyve/post.c (revision 32640292)
1bf21cd93STycho Nightingale /*-
2*32640292SAndy Fiddaman  * SPDX-License-Identifier: BSD-2-Clause
34c87aefeSPatrick Mooney  *
4bf21cd93STycho Nightingale  * Copyright (c) 2011 NetApp, Inc.
5bf21cd93STycho Nightingale  * All rights reserved.
6bf21cd93STycho Nightingale  *
7bf21cd93STycho Nightingale  * Redistribution and use in source and binary forms, with or without
8bf21cd93STycho Nightingale  * modification, are permitted provided that the following conditions
9bf21cd93STycho Nightingale  * are met:
10bf21cd93STycho Nightingale  * 1. Redistributions of source code must retain the above copyright
11bf21cd93STycho Nightingale  *    notice, this list of conditions and the following disclaimer.
12bf21cd93STycho Nightingale  * 2. Redistributions in binary form must reproduce the above copyright
13bf21cd93STycho Nightingale  *    notice, this list of conditions and the following disclaimer in the
14bf21cd93STycho Nightingale  *    documentation and/or other materials provided with the distribution.
15bf21cd93STycho Nightingale  *
16bf21cd93STycho Nightingale  * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
17bf21cd93STycho Nightingale  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18bf21cd93STycho Nightingale  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19bf21cd93STycho Nightingale  * ARE DISCLAIMED.  IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
20bf21cd93STycho Nightingale  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21bf21cd93STycho Nightingale  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22bf21cd93STycho Nightingale  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23bf21cd93STycho Nightingale  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24bf21cd93STycho Nightingale  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25bf21cd93STycho Nightingale  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26bf21cd93STycho Nightingale  * SUCH DAMAGE.
27bf21cd93STycho Nightingale  */
28bf21cd93STycho Nightingale 
29bf21cd93STycho Nightingale #include <sys/cdefs.h>
30bf21cd93STycho Nightingale 
31bf21cd93STycho Nightingale #include <sys/types.h>
32bf21cd93STycho Nightingale 
33bf21cd93STycho Nightingale #include <assert.h>
34bf21cd93STycho Nightingale 
35bf21cd93STycho Nightingale #include "inout.h"
36bf21cd93STycho Nightingale #include "pci_lpc.h"
37bf21cd93STycho Nightingale 
38bf21cd93STycho Nightingale static int
post_data_handler(struct vmctx * ctx __unused,int in,int port __unused,int bytes,uint32_t * eax,void * arg __unused)3959d65d31SAndy Fiddaman post_data_handler(struct vmctx *ctx __unused, int in,
4059d65d31SAndy Fiddaman     int port __unused, int bytes, uint32_t *eax, void *arg __unused)
41bf21cd93STycho Nightingale {
42bf21cd93STycho Nightingale 	assert(in == 1);
43bf21cd93STycho Nightingale 
44bf21cd93STycho Nightingale 	if (bytes != 1)
45bf21cd93STycho Nightingale 		return (-1);
46bf21cd93STycho Nightingale 
47bf21cd93STycho Nightingale 	*eax = 0xff;		/* return some garbage */
48bf21cd93STycho Nightingale 	return (0);
49bf21cd93STycho Nightingale }
50bf21cd93STycho Nightingale 
51bf21cd93STycho Nightingale INOUT_PORT(post, 0x84, IOPORT_F_IN, post_data_handler);
52bf21cd93STycho Nightingale SYSRES_IO(0x84, 1);
53