xref: /freebsd/sys/amd64/vmm/io/vhpet.h (revision d4ae33f0721c1b170fe37d97e395228ffcfb3f80)
1 /*-
2  * Copyright (c) 2013 Tycho Nightingale <tycho.nightingale@pluribusnetworks.com>
3  * Copyright (c) 2013 Neel Natu <neel@freebsd.org>
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  *
27  * $FreeBSD$
28  */
29 
30 #ifndef _VHPET_H_
31 #define	_VHPET_H_
32 
33 #define	VHPET_BASE	0xfed00000
34 #define	VHPET_SIZE	1024
35 
36 struct vhpet *vhpet_init(struct vm *vm);
37 void 	vhpet_cleanup(struct vhpet *vhpet);
38 int	vhpet_mmio_write(void *vm, int vcpuid, uint64_t gpa, uint64_t val,
39 	    int size, void *arg);
40 int	vhpet_mmio_read(void *vm, int vcpuid, uint64_t gpa, uint64_t *val,
41 	    int size, void *arg);
42 int	vhpet_getcap(struct vm_hpet_cap *cap);
43 
44 #endif	/* _VHPET_H_ */
45