xref: /illumos-gate/usr/src/uts/intel/io/vmm/io/vhpet.h (revision 32640292339b07090f10ce34d455f98711077343)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2013 Tycho Nightingale <tycho.nightingale@pluribusnetworks.com>
5  * Copyright (c) 2013 Neel Natu <neel@freebsd.org>
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 /*
31  * Copyright 2018 Joyent, Inc.
32  * Copyright 2022 Oxide Computer Company
33  */
34 
35 #ifndef _VHPET_H_
36 #define	_VHPET_H_
37 
38 #define	VHPET_BASE	0xfed00000
39 #define	VHPET_SIZE	1024
40 
41 struct vhpet *vhpet_init(struct vm *vm);
42 void vhpet_cleanup(struct vhpet *vhpet);
43 int vhpet_mmio_write(struct vm *vm, int vcpuid, uint64_t gpa, uint64_t val,
44     int size);
45 int vhpet_mmio_read(struct vm *vm, int vcpuid, uint64_t gpa, uint64_t *val,
46     int size);
47 int vhpet_getcap(struct vm_hpet_cap *cap);
48 
49 void vhpet_localize_resources(struct vhpet *vhpet);
50 void vhpet_pause(struct vhpet *);
51 void vhpet_resume(struct vhpet *);
52 
53 #endif	/* _VHPET_H_ */
54