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 49 #include "vmm_aplic.h" 50 51 const struct vmmdev_ioctl vmmdev_machdep_ioctls[] = { 52 VMMDEV_IOCTL(VM_RUN, VMMDEV_IOCTL_LOCK_ONE_VCPU), 53 VMMDEV_IOCTL(VM_INJECT_EXCEPTION, VMMDEV_IOCTL_LOCK_ONE_VCPU), 54 VMMDEV_IOCTL(VM_GLA2GPA_NOFAULT, VMMDEV_IOCTL_LOCK_ONE_VCPU), 55 56 VMMDEV_IOCTL(VM_ATTACH_APLIC, 57 VMMDEV_IOCTL_XLOCK_MEMSEGS | VMMDEV_IOCTL_LOCK_ALL_VCPUS), 58 59 VMMDEV_IOCTL(VM_RAISE_MSI, 0), 60 VMMDEV_IOCTL(VM_ASSERT_IRQ, 0), 61 VMMDEV_IOCTL(VM_DEASSERT_IRQ, 0), 62 }; 63 const size_t vmmdev_machdep_ioctl_count = nitems(vmmdev_machdep_ioctls); 64 65 int 66 vmmdev_machdep_ioctl(struct vm *vm, struct vcpu *vcpu, u_long cmd, caddr_t data, 67 int fflag, struct thread *td) 68 { 69 struct vm_run *vmrun; 70 struct vm_aplic_descr *aplic; 71 struct vm_irq *vi; 72 struct vm_exception *vmexc; 73 struct vm_gla2gpa *gg; 74 struct vm_msi *vmsi; 75 int error; 76 77 error = 0; 78 switch (cmd) { 79 case VM_RUN: { 80 struct vm_exit *vme; 81 82 vmrun = (struct vm_run *)data; 83 vme = vm_exitinfo(vcpu); 84 85 error = vm_run(vcpu); 86 if (error != 0) 87 break; 88 89 error = copyout(vme, vmrun->vm_exit, sizeof(*vme)); 90 break; 91 } 92 case VM_INJECT_EXCEPTION: 93 vmexc = (struct vm_exception *)data; 94 error = vm_inject_exception(vcpu, vmexc->scause); 95 break; 96 case VM_GLA2GPA_NOFAULT: 97 gg = (struct vm_gla2gpa *)data; 98 error = vm_gla2gpa_nofault(vcpu, &gg->paging, gg->gla, 99 gg->prot, &gg->gpa, &gg->fault); 100 KASSERT(error == 0 || error == EFAULT, 101 ("%s: vm_gla2gpa unknown error %d", __func__, error)); 102 break; 103 case VM_ATTACH_APLIC: 104 aplic = (struct vm_aplic_descr *)data; 105 error = vm_attach_aplic(vm, aplic); 106 break; 107 case VM_RAISE_MSI: 108 vmsi = (struct vm_msi *)data; 109 error = vm_raise_msi(vm, vmsi->msg, vmsi->addr, vmsi->bus, 110 vmsi->slot, vmsi->func); 111 break; 112 case VM_ASSERT_IRQ: 113 vi = (struct vm_irq *)data; 114 error = vm_assert_irq(vm, vi->irq); 115 break; 116 case VM_DEASSERT_IRQ: 117 vi = (struct vm_irq *)data; 118 error = vm_deassert_irq(vm, vi->irq); 119 break; 120 default: 121 error = ENOTTY; 122 break; 123 } 124 125 return (error); 126 } 127