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
vmmdev_machdep_ioctl(struct vm * vm,struct vcpu * vcpu,u_long cmd,caddr_t data,int fflag,struct thread * td)68 vmmdev_machdep_ioctl(struct vm *vm, struct vcpu *vcpu, u_long cmd, caddr_t data,
69 int fflag, struct thread *td)
70 {
71 int error;
72
73 error = 0;
74 switch (cmd) {
75 case VM_RUN: {
76 struct vm_exit *vme;
77 struct vm_run *vmrun;
78
79 vmrun = (struct vm_run *)data;
80 vme = vm_exitinfo(vcpu);
81
82 error = vm_run(vcpu);
83 if (error != 0)
84 break;
85
86 error = copyout(vme, vmrun->vm_exit, sizeof(*vme));
87 if (error != 0)
88 break;
89 break;
90 }
91 case VM_INJECT_EXCEPTION: {
92 struct vm_exception *vmexc;
93
94 vmexc = (struct vm_exception *)data;
95 error = vm_inject_exception(vcpu, vmexc->esr, vmexc->far);
96 break;
97 }
98 case VM_GLA2GPA_NOFAULT: {
99 struct vm_gla2gpa *gg;
100
101 gg = (struct vm_gla2gpa *)data;
102 error = vm_gla2gpa_nofault(vcpu, &gg->paging, gg->gla,
103 gg->prot, &gg->gpa, &gg->fault);
104 KASSERT(error == 0 || error == EFAULT,
105 ("%s: vm_gla2gpa unknown error %d", __func__, error));
106 break;
107 }
108 case VM_GET_VGIC_VERSION: {
109 struct vm_vgic_version *vgv;
110
111 vgv = (struct vm_vgic_version *)data;
112 /* TODO: Query the vgic driver for this */
113 vgv->version = 3;
114 vgv->flags = 0;
115 error = 0;
116 break;
117 }
118 case VM_ATTACH_VGIC: {
119 struct vm_vgic_descr *vgic;
120
121 vgic = (struct vm_vgic_descr *)data;
122 error = vm_attach_vgic(vm, vgic);
123 break;
124 }
125 case VM_RAISE_MSI: {
126 struct vm_msi *vmsi;
127
128 vmsi = (struct vm_msi *)data;
129 error = vm_raise_msi(vm, vmsi->msg, vmsi->addr, vmsi->bus,
130 vmsi->slot, vmsi->func);
131 break;
132 }
133 case VM_ASSERT_IRQ: {
134 struct vm_irq *vi;
135
136 vi = (struct vm_irq *)data;
137 error = vm_assert_irq(vm, vi->irq);
138 break;
139 }
140 case VM_DEASSERT_IRQ: {
141 struct vm_irq *vi;
142
143 vi = (struct vm_irq *)data;
144 error = vm_deassert_irq(vm, vi->irq);
145 break;
146 }
147 default:
148 error = ENOTTY;
149 break;
150 }
151
152 return (error);
153 }
154