1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2011 NetApp, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28 /*
29 * This file and its contents are supplied under the terms of the
30 * Common Development and Distribution License ("CDDL"), version 1.0.
31 * You may only use this file in accordance with the terms of version
32 * 1.0 of the CDDL.
33 *
34 * A full copy of the text of the CDDL should have accompanied this
35 * source. A copy of the CDDL is also available via the Internet at
36 * http://www.illumos.org/license/CDDL.
37 */
38 /* This file is dual-licensed; see usr/src/contrib/bhyve/LICENSE */
39
40 /*
41 * Copyright 2014 Pluribus Networks Inc.
42 */
43
44 #ifndef _VMM_LAPIC_H_
45 #define _VMM_LAPIC_H_
46
47 struct vm;
48
49 bool lapic_msr(uint_t num);
50 int lapic_rdmsr(struct vm *vm, int cpu, uint_t msr, uint64_t *rval);
51 int lapic_wrmsr(struct vm *vm, int cpu, uint_t msr, uint64_t wval);
52
53 int lapic_mmio_read(struct vm *vm, int cpu, uint64_t gpa, uint64_t *rval,
54 int size);
55 int lapic_mmio_write(struct vm *vm, int cpu, uint64_t gpa, uint64_t wval,
56 int size);
57
58 /*
59 * Signals to the LAPIC that an interrupt at 'vector' needs to be generated
60 * to the 'cpu', the state is recorded in IRR.
61 */
62 int lapic_set_intr(struct vm *vm, int cpu, int vector, bool trig);
63
64 #define LAPIC_TRIG_LEVEL true
65 #define LAPIC_TRIG_EDGE false
66 static __inline int
lapic_intr_level(struct vm * vm,int cpu,int vector)67 lapic_intr_level(struct vm *vm, int cpu, int vector)
68 {
69
70 return (lapic_set_intr(vm, cpu, vector, LAPIC_TRIG_LEVEL));
71 }
72
73 static __inline int
lapic_intr_edge(struct vm * vm,int cpu,int vector)74 lapic_intr_edge(struct vm *vm, int cpu, int vector)
75 {
76
77 return (lapic_set_intr(vm, cpu, vector, LAPIC_TRIG_EDGE));
78 }
79
80 /*
81 * Triggers the LAPIC local interrupt (LVT) 'vector' on 'cpu'. 'cpu' can
82 * be set to -1 to trigger the interrupt on all CPUs.
83 */
84 int lapic_set_local_intr(struct vm *vm, int cpu, int vector);
85
86 int lapic_intr_msi(struct vm *vm, uint64_t addr, uint64_t msg);
87
88 #endif
89