vmm_lapic.h revision 331722 
1/*-
2 * Copyright (c) 2011 NetApp, Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: stable/11/sys/amd64/vmm/vmm_lapic.h 331722 2018-03-29 02:50:57Z eadler $
27 */
28
29#ifndef _VMM_LAPIC_H_
30#define	_VMM_LAPIC_H_
31
32struct vm;
33
34boolean_t lapic_msr(u_int num);
35int	lapic_rdmsr(struct vm *vm, int cpu, u_int msr, uint64_t *rval,
36	    bool *retu);
37int	lapic_wrmsr(struct vm *vm, int cpu, u_int msr, uint64_t wval,
38	    bool *retu);
39
40int	lapic_mmio_read(void *vm, int cpu, uint64_t gpa,
41			uint64_t *rval, int size, void *arg);
42int	lapic_mmio_write(void *vm, int cpu, uint64_t gpa,
43			 uint64_t wval, int size, void *arg);
44
45/*
46 * Signals to the LAPIC that an interrupt at 'vector' needs to be generated
47 * to the 'cpu', the state is recorded in IRR.
48 */
49int	lapic_set_intr(struct vm *vm, int cpu, int vector, bool trig);
50
51#define	LAPIC_TRIG_LEVEL	true
52#define	LAPIC_TRIG_EDGE		false
53static __inline int
54lapic_intr_level(struct vm *vm, int cpu, int vector)
55{
56
57	return (lapic_set_intr(vm, cpu, vector, LAPIC_TRIG_LEVEL));
58}
59
60static __inline int
61lapic_intr_edge(struct vm *vm, int cpu, int vector)
62{
63
64	return (lapic_set_intr(vm, cpu, vector, LAPIC_TRIG_EDGE));
65}
66
67/*
68 * Triggers the LAPIC local interrupt (LVT) 'vector' on 'cpu'.  'cpu' can
69 * be set to -1 to trigger the interrupt on all CPUs.
70 */
71int	lapic_set_local_intr(struct vm *vm, int cpu, int vector);
72
73int	lapic_intr_msi(struct vm *vm, uint64_t addr, uint64_t msg);
74
75#endif
76