xref: /illumos-gate/usr/src/uts/intel/io/vmm/io/vatpit.h (revision 32640292339b07090f10ce34d455f98711077343)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2014 Tycho Nightingale <tycho.nightingale@pluribusnetworks.com>
5  * Copyright (c) 2011 NetApp, Inc.
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 /*
30  * Copyright 2022 Oxide Computer Company
31  */
32 
33 #ifndef _VATPIT_H_
34 #define	_VATPIT_H_
35 
36 #include <x86/timerreg.h>
37 
38 #define	NMISC_PORT	0x61
39 
40 struct vatpit *vatpit_init(struct vm *vm);
41 void vatpit_cleanup(struct vatpit *vatpit);
42 
43 int vatpit_handler(void *arg, bool in, uint16_t port, uint8_t bytes,
44     uint32_t *eax);
45 int vatpit_nmisc_handler(void *arg, bool in, uint16_t port, uint8_t bytes,
46     uint32_t *eax);
47 
48 void vatpit_localize_resources(struct vatpit *);
49 void vatpit_pause(struct vatpit *);
50 void vatpit_resume(struct vatpit *);
51 
52 #endif	/* _VATPIT_H_ */
53