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 * Copyright 2014 Pluribus Networks Inc. 39 */ 40 41 #ifndef _VMM_LAPIC_H_ 42 #define _VMM_LAPIC_H_ 43 44 struct vm; 45 46 bool lapic_msr(uint_t num); 47 int lapic_rdmsr(struct vm *vm, int cpu, uint_t msr, uint64_t *rval); 48 int lapic_wrmsr(struct vm *vm, int cpu, uint_t msr, uint64_t wval); 49 50 int lapic_mmio_read(struct vm *vm, int cpu, uint64_t gpa, uint64_t *rval, 51 int size); 52 int lapic_mmio_write(struct vm *vm, int cpu, uint64_t gpa, uint64_t wval, 53 int size); 54 55 /* 56 * Signals to the LAPIC that an interrupt at 'vector' needs to be generated 57 * to the 'cpu', the state is recorded in IRR. 58 */ 59 int lapic_set_intr(struct vm *vm, int cpu, int vector, bool trig); 60 61 #define LAPIC_TRIG_LEVEL true 62 #define LAPIC_TRIG_EDGE false 63 static __inline int 64 lapic_intr_level(struct vm *vm, int cpu, int vector) 65 { 66 67 return (lapic_set_intr(vm, cpu, vector, LAPIC_TRIG_LEVEL)); 68 } 69 70 static __inline int 71 lapic_intr_edge(struct vm *vm, int cpu, int vector) 72 { 73 74 return (lapic_set_intr(vm, cpu, vector, LAPIC_TRIG_EDGE)); 75 } 76 77 /* 78 * Triggers the LAPIC local interrupt (LVT) 'vector' on 'cpu'. 'cpu' can 79 * be set to -1 to trigger the interrupt on all CPUs. 80 */ 81 int lapic_set_local_intr(struct vm *vm, int cpu, int vector); 82 83 int lapic_intr_msi(struct vm *vm, uint64_t addr, uint64_t msg); 84 85 #endif 86