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
vmmdev_machdep_ioctl(struct vm * vm,struct vcpu * vcpu,u_long cmd,caddr_t data,int fflag,struct thread * td)67 vmmdev_machdep_ioctl(struct vm *vm, struct vcpu *vcpu, u_long cmd, caddr_t data,
68 int fflag, struct thread *td)
69 {
70 struct vm_run *vmrun;
71 struct vm_aplic_descr *aplic;
72 struct vm_irq *vi;
73 struct vm_exception *vmexc;
74 struct vm_gla2gpa *gg;
75 struct vm_msi *vmsi;
76 int error;
77
78 error = 0;
79 switch (cmd) {
80 case VM_RUN: {
81 struct vm_exit *vme;
82
83 vmrun = (struct vm_run *)data;
84 vme = vm_exitinfo(vcpu);
85
86 error = vm_run(vcpu);
87 if (error != 0)
88 break;
89
90 error = copyout(vme, vmrun->vm_exit, sizeof(*vme));
91 break;
92 }
93 case VM_INJECT_EXCEPTION:
94 vmexc = (struct vm_exception *)data;
95 error = vm_inject_exception(vcpu, vmexc->scause);
96 break;
97 case VM_GLA2GPA_NOFAULT:
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 case VM_ATTACH_APLIC:
105 aplic = (struct vm_aplic_descr *)data;
106 error = vm_attach_aplic(vm, aplic);
107 break;
108 case VM_RAISE_MSI:
109 vmsi = (struct vm_msi *)data;
110 error = vm_raise_msi(vm, vmsi->msg, vmsi->addr, vmsi->bus,
111 vmsi->slot, vmsi->func);
112 break;
113 case VM_ASSERT_IRQ:
114 vi = (struct vm_irq *)data;
115 error = vm_assert_irq(vm, vi->irq);
116 break;
117 case VM_DEASSERT_IRQ:
118 vi = (struct vm_irq *)data;
119 error = vm_deassert_irq(vm, vi->irq);
120 break;
121 default:
122 error = ENOTTY;
123 break;
124 }
125
126 return (error);
127 }
128