1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2011 NetApp, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/types.h>
30 #include <sys/ioctl.h>
31
32 #include <machine/vmm.h>
33 #include <machine/vmm_dev.h>
34 #include <machine/vmm_snapshot.h>
35
36 #include <assert.h>
37 #include <string.h>
38
39 #include "vmmapi.h"
40 #include "internal.h"
41
42 const char *vm_capstrmap[] = {
43 [VM_CAP_MAX] = NULL,
44 };
45
46 #define VM_MD_IOCTLS \
47 VM_GET_VGIC_VERSION, \
48 VM_ATTACH_VGIC, \
49 VM_ASSERT_IRQ, \
50 VM_DEASSERT_IRQ, \
51 VM_RAISE_MSI
52
53 const cap_ioctl_t vm_ioctl_cmds[] = {
54 VM_COMMON_IOCTLS,
55 VM_MD_IOCTLS,
56 };
57 size_t vm_ioctl_ncmds = nitems(vm_ioctl_cmds);
58
59 int
vm_attach_vgic(struct vmctx * ctx,uint64_t dist_start,size_t dist_size,uint64_t redist_start,size_t redist_size)60 vm_attach_vgic(struct vmctx *ctx, uint64_t dist_start, size_t dist_size,
61 uint64_t redist_start, size_t redist_size)
62 {
63 struct vm_vgic_descr vgic;
64 int error;
65
66 bzero(&vgic, sizeof(vgic));
67 error = ioctl(ctx->fd, VM_GET_VGIC_VERSION, &vgic.ver);
68 if (error != 0)
69 return (error);
70 assert(vgic.ver.version == 3);
71 vgic.v3_regs.dist_start = dist_start;
72 vgic.v3_regs.dist_size = dist_size;
73 vgic.v3_regs.redist_start = redist_start;
74 vgic.v3_regs.redist_size = redist_size;
75
76 return (ioctl(ctx->fd, VM_ATTACH_VGIC, &vgic));
77 }
78
79 int
vm_assert_irq(struct vmctx * ctx,uint32_t irq)80 vm_assert_irq(struct vmctx *ctx, uint32_t irq)
81 {
82 struct vm_irq vi;
83
84 bzero(&vi, sizeof(vi));
85 vi.irq = irq;
86
87 return (ioctl(ctx->fd, VM_ASSERT_IRQ, &vi));
88 }
89
90 int
vm_deassert_irq(struct vmctx * ctx,uint32_t irq)91 vm_deassert_irq(struct vmctx *ctx, uint32_t irq)
92 {
93 struct vm_irq vi;
94
95 bzero(&vi, sizeof(vi));
96 vi.irq = irq;
97
98 return (ioctl(ctx->fd, VM_DEASSERT_IRQ, &vi));
99 }
100
101 int
vm_raise_msi(struct vmctx * ctx,uint64_t addr,uint64_t msg,int bus,int slot,int func)102 vm_raise_msi(struct vmctx *ctx, uint64_t addr, uint64_t msg,
103 int bus, int slot, int func)
104 {
105 struct vm_msi vmsi;
106
107 bzero(&vmsi, sizeof(vmsi));
108 vmsi.addr = addr;
109 vmsi.msg = msg;
110 vmsi.bus = bus;
111 vmsi.slot = slot;
112 vmsi.func = func;
113
114 return (ioctl(ctx->fd, VM_RAISE_MSI, &vmsi));
115 }
116
117 int
vm_inject_exception(struct vcpu * vcpu,uint64_t esr,uint64_t far)118 vm_inject_exception(struct vcpu *vcpu, uint64_t esr, uint64_t far)
119 {
120 struct vm_exception vmexc;
121
122 bzero(&vmexc, sizeof(vmexc));
123 vmexc.esr = esr;
124 vmexc.far = far;
125
126 return (vcpu_ioctl(vcpu, VM_INJECT_EXCEPTION, &vmexc));
127 }
128