1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2011 NetApp, Inc. 5 * Copyright (C) 2015 Mihai Carabas <mihai.carabas@gmail.com> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/param.h> 31 #include <sys/kernel.h> 32 #include <sys/conf.h> 33 #include <sys/libkern.h> 34 #include <sys/ioccom.h> 35 #include <sys/mman.h> 36 #include <sys/uio.h> 37 #include <sys/proc.h> 38 39 #include <vm/vm.h> 40 #include <vm/pmap.h> 41 #include <vm/vm_map.h> 42 43 #include <machine/machdep.h> 44 #include <machine/vmparam.h> 45 #include <machine/vmm.h> 46 47 #include <dev/vmm/vmm_dev.h> 48 #include <dev/vmm/vmm_mem.h> 49 50 #include "vmm_aplic.h" 51 52 const struct vmmdev_ioctl vmmdev_machdep_ioctls[] = { 53 VMMDEV_IOCTL(VM_RUN, VMMDEV_IOCTL_LOCK_ONE_VCPU), 54 VMMDEV_IOCTL(VM_INJECT_EXCEPTION, VMMDEV_IOCTL_LOCK_ONE_VCPU), 55 VMMDEV_IOCTL(VM_GLA2GPA_NOFAULT, VMMDEV_IOCTL_LOCK_ONE_VCPU), 56 57 VMMDEV_IOCTL(VM_ATTACH_APLIC, 58 VMMDEV_IOCTL_XLOCK_MEMSEGS | VMMDEV_IOCTL_LOCK_ALL_VCPUS), 59 60 VMMDEV_IOCTL(VM_RAISE_MSI, 0), 61 VMMDEV_IOCTL(VM_ASSERT_IRQ, 0), 62 VMMDEV_IOCTL(VM_DEASSERT_IRQ, 0), 63 }; 64 const size_t vmmdev_machdep_ioctl_count = nitems(vmmdev_machdep_ioctls); 65 66 int 67 vmmdev_machdep_ioctl(struct vm *vm, struct vcpu *vcpu, u_long cmd, caddr_t data, 68 int fflag, struct thread *td) 69 { 70 int error; 71 72 error = 0; 73 switch (cmd) { 74 case VM_RUN: { 75 struct vm_exit *vme; 76 struct vm_run *vmrun; 77 78 vmrun = (struct vm_run *)data; 79 vme = vm_exitinfo(vcpu); 80 81 error = vm_run(vcpu); 82 if (error != 0) 83 break; 84 85 error = copyout(vme, vmrun->vm_exit, sizeof(*vme)); 86 break; 87 } 88 case VM_INJECT_EXCEPTION: { 89 struct vm_exception *vmexc; 90 91 vmexc = (struct vm_exception *)data; 92 error = vm_inject_exception(vcpu, vmexc->scause); 93 break; 94 } 95 case VM_GLA2GPA_NOFAULT: { 96 struct vm_gla2gpa *gg; 97 98 gg = (struct vm_gla2gpa *)data; 99 error = vm_gla2gpa_nofault(vcpu, &gg->paging, gg->gla, 100 gg->prot, &gg->gpa, &gg->fault); 101 KASSERT(error == 0 || error == EFAULT, 102 ("%s: vm_gla2gpa unknown error %d", __func__, error)); 103 break; 104 } 105 case VM_ATTACH_APLIC: { 106 struct vm_aplic_descr *aplic; 107 108 aplic = (struct vm_aplic_descr *)data; 109 error = vm_attach_aplic(vm, aplic); 110 break; 111 } 112 case VM_RAISE_MSI: { 113 struct vm_msi *vmsi; 114 115 vmsi = (struct vm_msi *)data; 116 error = vm_raise_msi(vm, vmsi->msg, vmsi->addr, vmsi->bus, 117 vmsi->slot, vmsi->func); 118 break; 119 } 120 case VM_ASSERT_IRQ: { 121 struct vm_irq *vi; 122 123 vi = (struct vm_irq *)data; 124 error = vm_assert_irq(vm, vi->irq); 125 break; 126 } 127 case VM_DEASSERT_IRQ: { 128 struct vm_irq *vi; 129 130 vi = (struct vm_irq *)data; 131 error = vm_deassert_irq(vm, vi->irq); 132 break; 133 } 134 default: 135 error = ENOTTY; 136 break; 137 } 138 139 return (error); 140 } 141