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 "io/vgic.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_VGIC, 58 VMMDEV_IOCTL_XLOCK_MEMSEGS | VMMDEV_IOCTL_LOCK_ALL_VCPUS), 59 60 VMMDEV_IOCTL(VM_GET_VGIC_VERSION, 0), 61 VMMDEV_IOCTL(VM_RAISE_MSI, 0), 62 VMMDEV_IOCTL(VM_ASSERT_IRQ, 0), 63 VMMDEV_IOCTL(VM_DEASSERT_IRQ, 0), 64 }; 65 const size_t vmmdev_machdep_ioctl_count = nitems(vmmdev_machdep_ioctls); 66 67 int 68 vmmdev_machdep_ioctl(struct vm *vm, struct vcpu *vcpu, u_long cmd, caddr_t data, 69 int fflag, struct thread *td) 70 { 71 struct vm_run *vmrun; 72 struct vm_vgic_version *vgv; 73 struct vm_vgic_descr *vgic; 74 struct vm_irq *vi; 75 struct vm_exception *vmexc; 76 struct vm_gla2gpa *gg; 77 struct vm_msi *vmsi; 78 int error; 79 80 error = 0; 81 switch (cmd) { 82 case VM_RUN: { 83 struct vm_exit *vme; 84 85 vmrun = (struct vm_run *)data; 86 vme = vm_exitinfo(vcpu); 87 88 error = vm_run(vcpu); 89 if (error != 0) 90 break; 91 92 error = copyout(vme, vmrun->vm_exit, sizeof(*vme)); 93 if (error != 0) 94 break; 95 break; 96 } 97 case VM_INJECT_EXCEPTION: 98 vmexc = (struct vm_exception *)data; 99 error = vm_inject_exception(vcpu, vmexc->esr, vmexc->far); 100 break; 101 case VM_GLA2GPA_NOFAULT: 102 gg = (struct vm_gla2gpa *)data; 103 error = vm_gla2gpa_nofault(vcpu, &gg->paging, gg->gla, 104 gg->prot, &gg->gpa, &gg->fault); 105 KASSERT(error == 0 || error == EFAULT, 106 ("%s: vm_gla2gpa unknown error %d", __func__, error)); 107 break; 108 case VM_GET_VGIC_VERSION: 109 vgv = (struct vm_vgic_version *)data; 110 /* TODO: Query the vgic driver for this */ 111 vgv->version = 3; 112 vgv->flags = 0; 113 error = 0; 114 break; 115 case VM_ATTACH_VGIC: 116 vgic = (struct vm_vgic_descr *)data; 117 error = vm_attach_vgic(vm, vgic); 118 break; 119 case VM_RAISE_MSI: 120 vmsi = (struct vm_msi *)data; 121 error = vm_raise_msi(vm, vmsi->msg, vmsi->addr, vmsi->bus, 122 vmsi->slot, vmsi->func); 123 break; 124 case VM_ASSERT_IRQ: 125 vi = (struct vm_irq *)data; 126 error = vm_assert_irq(vm, vi->irq); 127 break; 128 case VM_DEASSERT_IRQ: 129 vi = (struct vm_irq *)data; 130 error = vm_deassert_irq(vm, vi->irq); 131 break; 132 default: 133 error = ENOTTY; 134 break; 135 } 136 137 return (error); 138 } 139