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 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 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