1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 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 * $FreeBSD$ 29 */ 30 31 /* 32 * Copyright 2018 Joyent, Inc. 33 * Copyright 2020 Oxide Computer Company 34 */ 35 36 #ifndef _VLAPIC_H_ 37 #define _VLAPIC_H_ 38 39 void vlapic_reset(struct vlapic *vlapic); 40 41 int vlapic_mmio_write(struct vlapic *, uint64_t, uint64_t, uint_t); 42 int vlapic_mmio_read(struct vlapic *, uint64_t, uint64_t *, uint_t); 43 44 bool vlapic_owned_msr(uint32_t); 45 vm_msr_result_t vlapic_rdmsr(struct vlapic *, uint32_t, uint64_t *); 46 vm_msr_result_t vlapic_wrmsr(struct vlapic *, uint32_t, uint64_t); 47 48 /* 49 * Returns 0 if there is no eligible vector that can be delivered to the 50 * guest at this time and non-zero otherwise. 51 * 52 * If an eligible vector number is found and 'vecptr' is not NULL then it will 53 * be stored in the location pointed to by 'vecptr'. 54 * 55 * Note that the vector does not automatically transition to the ISR as a 56 * result of calling this function. 57 */ 58 int vlapic_pending_intr(struct vlapic *vlapic, int *vecptr); 59 60 /* 61 * Transition 'vector' from IRR to ISR. This function is called with the 62 * vector returned by 'vlapic_pending_intr()' when the guest is able to 63 * accept this interrupt (i.e. RFLAGS.IF = 1 and no conditions exist that 64 * block interrupt delivery). 65 */ 66 void vlapic_intr_accepted(struct vlapic *vlapic, int vector); 67 68 vcpu_notify_t vlapic_set_intr_ready(struct vlapic *vlapic, int vector, 69 bool level); 70 71 /* 72 * Post an interrupt to the vcpu running on 'hostcpu'. This will use a 73 * hardware assist if available (e.g. Posted Interrupt) or fall back to 74 * sending an IPI to interrupt the 'hostcpu'. 75 */ 76 void vlapic_post_intr(struct vlapic *vlapic, int hostcpu); 77 78 void vlapic_fire_cmci(struct vlapic *vlapic); 79 int vlapic_trigger_lvt(struct vlapic *vlapic, int vector); 80 81 void vlapic_sync_tpr(struct vlapic *vlapic); 82 83 void vlapic_set_x2apic_state(struct vm *vm, int vcpuid, enum x2apic_state s); 84 85 void vlapic_deliver_intr(struct vm *vm, bool level, uint32_t dest, bool phys, 86 int delmode, int vec); 87 88 void vlapic_calcdest(struct vm *vm, cpuset_t *dmask, uint32_t dest, bool phys, 89 bool lowprio, bool x2apic_dest); 90 91 void vlapic_set_cr8(struct vlapic *vlapic, uint64_t val); 92 uint64_t vlapic_get_cr8(const struct vlapic *vlapic); 93 94 /* APIC write handlers */ 95 void vlapic_id_write_handler(struct vlapic *vlapic); 96 void vlapic_ldr_write_handler(struct vlapic *vlapic); 97 void vlapic_dfr_write_handler(struct vlapic *vlapic); 98 void vlapic_svr_write_handler(struct vlapic *vlapic); 99 void vlapic_esr_write_handler(struct vlapic *vlapic); 100 void vlapic_icrlo_write_handler(struct vlapic *vlapic); 101 void vlapic_icrtmr_write_handler(struct vlapic *vlapic); 102 void vlapic_dcr_write_handler(struct vlapic *vlapic); 103 void vlapic_lvt_write_handler(struct vlapic *vlapic, uint32_t offset); 104 void vlapic_self_ipi_handler(struct vlapic *vlapic, uint32_t val); 105 106 void vlapic_localize_resources(struct vlapic *vlapic); 107 108 #endif /* _VLAPIC_H_ */ 109