root / hw / s390-virtio-bus.c @ 6d3b6d3d
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1 | f3304eea | Alexander Graf | /*
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2 | f3304eea | Alexander Graf | * QEMU S390 virtio target
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3 | f3304eea | Alexander Graf | *
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4 | f3304eea | Alexander Graf | * Copyright (c) 2009 Alexander Graf <agraf@suse.de>
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5 | f3304eea | Alexander Graf | *
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6 | f3304eea | Alexander Graf | * This library is free software; you can redistribute it and/or
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7 | f3304eea | Alexander Graf | * modify it under the terms of the GNU Lesser General Public
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8 | f3304eea | Alexander Graf | * License as published by the Free Software Foundation; either
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9 | f3304eea | Alexander Graf | * version 2 of the License, or (at your option) any later version.
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10 | f3304eea | Alexander Graf | *
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11 | f3304eea | Alexander Graf | * This library is distributed in the hope that it will be useful,
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12 | f3304eea | Alexander Graf | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | f3304eea | Alexander Graf | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | f3304eea | Alexander Graf | * Lesser General Public License for more details.
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15 | f3304eea | Alexander Graf | *
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16 | f3304eea | Alexander Graf | * You should have received a copy of the GNU Lesser General Public
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17 | f3304eea | Alexander Graf | * License along with this library; if not, see <http://www.gnu.org/licenses/>.
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18 | f3304eea | Alexander Graf | */
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19 | f3304eea | Alexander Graf | |
20 | f3304eea | Alexander Graf | #include "hw.h" |
21 | f3304eea | Alexander Graf | #include "block.h" |
22 | f3304eea | Alexander Graf | #include "sysemu.h" |
23 | f3304eea | Alexander Graf | #include "net.h" |
24 | f3304eea | Alexander Graf | #include "boards.h" |
25 | f3304eea | Alexander Graf | #include "monitor.h" |
26 | f3304eea | Alexander Graf | #include "loader.h" |
27 | f3304eea | Alexander Graf | #include "elf.h" |
28 | f3304eea | Alexander Graf | #include "hw/virtio.h" |
29 | 98b19252 | Amit Shah | #include "hw/virtio-serial.h" |
30 | f0c07c7c | Alex Williamson | #include "hw/virtio-net.h" |
31 | f3304eea | Alexander Graf | #include "hw/sysbus.h" |
32 | f3304eea | Alexander Graf | #include "kvm.h" |
33 | f3304eea | Alexander Graf | |
34 | f3304eea | Alexander Graf | #include "hw/s390-virtio-bus.h" |
35 | f3304eea | Alexander Graf | |
36 | f3304eea | Alexander Graf | /* #define DEBUG_S390 */
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37 | f3304eea | Alexander Graf | |
38 | f3304eea | Alexander Graf | #ifdef DEBUG_S390
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39 | f3304eea | Alexander Graf | #define dprintf(fmt, ...) \
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40 | f3304eea | Alexander Graf | do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0) |
41 | f3304eea | Alexander Graf | #else
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42 | f3304eea | Alexander Graf | #define dprintf(fmt, ...) \
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43 | f3304eea | Alexander Graf | do { } while (0) |
44 | f3304eea | Alexander Graf | #endif
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45 | f3304eea | Alexander Graf | |
46 | 8103b4d1 | Alexander Graf | #define VIRTIO_EXT_CODE 0x2603 |
47 | 8103b4d1 | Alexander Graf | |
48 | 0d936928 | Anthony Liguori | static const TypeInfo s390_virtio_bus_info = { |
49 | 0d936928 | Anthony Liguori | .name = TYPE_S390_VIRTIO_BUS, |
50 | 0d936928 | Anthony Liguori | .parent = TYPE_BUS, |
51 | 0d936928 | Anthony Liguori | .instance_size = sizeof(VirtIOS390Bus),
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52 | f3304eea | Alexander Graf | }; |
53 | f3304eea | Alexander Graf | |
54 | f3304eea | Alexander Graf | static const VirtIOBindings virtio_s390_bindings; |
55 | f3304eea | Alexander Graf | |
56 | f3304eea | Alexander Graf | static ram_addr_t s390_virtio_device_num_vq(VirtIOS390Device *dev);
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57 | f3304eea | Alexander Graf | |
58 | d1ff903c | Alexander Graf | /* length of VirtIO device pages */
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59 | d1ff903c | Alexander Graf | const target_phys_addr_t virtio_size = S390_DEVICE_PAGES * TARGET_PAGE_SIZE;
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60 | d1ff903c | Alexander Graf | |
61 | eb3caa44 | Jens Freimann | static void s390_virtio_bus_reset(void *opaque) |
62 | eb3caa44 | Jens Freimann | { |
63 | eb3caa44 | Jens Freimann | VirtIOS390Bus *bus = opaque; |
64 | eb3caa44 | Jens Freimann | bus->next_ring = bus->dev_page + TARGET_PAGE_SIZE; |
65 | eb3caa44 | Jens Freimann | } |
66 | eb3caa44 | Jens Freimann | |
67 | 4170aea1 | Jens Freimann | void s390_virtio_reset_idx(VirtIOS390Device *dev)
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68 | 4170aea1 | Jens Freimann | { |
69 | 4170aea1 | Jens Freimann | int i;
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70 | 4170aea1 | Jens Freimann | target_phys_addr_t idx_addr; |
71 | 4170aea1 | Jens Freimann | uint8_t num_vq; |
72 | 4170aea1 | Jens Freimann | |
73 | 4170aea1 | Jens Freimann | num_vq = s390_virtio_device_num_vq(dev); |
74 | 4170aea1 | Jens Freimann | for (i = 0; i < num_vq; i++) { |
75 | 4170aea1 | Jens Freimann | idx_addr = virtio_queue_get_avail_addr(dev->vdev, i) + |
76 | 4170aea1 | Jens Freimann | VIRTIO_VRING_AVAIL_IDX_OFFS; |
77 | 4170aea1 | Jens Freimann | stw_phys(idx_addr, 0);
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78 | 4170aea1 | Jens Freimann | idx_addr = virtio_queue_get_used_addr(dev->vdev, i) + |
79 | 4170aea1 | Jens Freimann | VIRTIO_VRING_USED_IDX_OFFS; |
80 | 4170aea1 | Jens Freimann | stw_phys(idx_addr, 0);
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81 | 4170aea1 | Jens Freimann | } |
82 | 4170aea1 | Jens Freimann | } |
83 | 4170aea1 | Jens Freimann | |
84 | f3304eea | Alexander Graf | VirtIOS390Bus *s390_virtio_bus_init(ram_addr_t *ram_size) |
85 | f3304eea | Alexander Graf | { |
86 | f3304eea | Alexander Graf | VirtIOS390Bus *bus; |
87 | f3304eea | Alexander Graf | BusState *_bus; |
88 | f3304eea | Alexander Graf | DeviceState *dev; |
89 | f3304eea | Alexander Graf | |
90 | f3304eea | Alexander Graf | /* Create bridge device */
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91 | f3304eea | Alexander Graf | dev = qdev_create(NULL, "s390-virtio-bridge"); |
92 | f3304eea | Alexander Graf | qdev_init_nofail(dev); |
93 | f3304eea | Alexander Graf | |
94 | f3304eea | Alexander Graf | /* Create bus on bridge device */
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95 | f3304eea | Alexander Graf | |
96 | 0d936928 | Anthony Liguori | _bus = qbus_create(TYPE_S390_VIRTIO_BUS, dev, "s390-virtio");
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97 | f3304eea | Alexander Graf | bus = DO_UPCAST(VirtIOS390Bus, bus, _bus); |
98 | f3304eea | Alexander Graf | |
99 | f3304eea | Alexander Graf | bus->dev_page = *ram_size; |
100 | f3304eea | Alexander Graf | bus->dev_offs = bus->dev_page; |
101 | f3304eea | Alexander Graf | bus->next_ring = bus->dev_page + TARGET_PAGE_SIZE; |
102 | f3304eea | Alexander Graf | |
103 | 7fa41e53 | Alexander Graf | /* Enable hotplugging */
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104 | 7fa41e53 | Alexander Graf | _bus->allow_hotplug = 1;
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105 | 7fa41e53 | Alexander Graf | |
106 | f3304eea | Alexander Graf | /* Allocate RAM for VirtIO device pages (descriptors, queues, rings) */
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107 | f3304eea | Alexander Graf | *ram_size += S390_DEVICE_PAGES * TARGET_PAGE_SIZE; |
108 | f3304eea | Alexander Graf | |
109 | eb3caa44 | Jens Freimann | qemu_register_reset(s390_virtio_bus_reset, bus); |
110 | f3304eea | Alexander Graf | return bus;
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111 | f3304eea | Alexander Graf | } |
112 | f3304eea | Alexander Graf | |
113 | 0e4213a7 | Andreas Färber | static void s390_virtio_irq(CPUS390XState *env, int config_change, uint64_t token) |
114 | 7fa41e53 | Alexander Graf | { |
115 | 7fa41e53 | Alexander Graf | if (kvm_enabled()) {
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116 | 7fa41e53 | Alexander Graf | kvm_s390_virtio_irq(env, config_change, token); |
117 | 7fa41e53 | Alexander Graf | } else {
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118 | 7fa41e53 | Alexander Graf | cpu_inject_ext(env, VIRTIO_EXT_CODE, config_change, token); |
119 | 7fa41e53 | Alexander Graf | } |
120 | 7fa41e53 | Alexander Graf | } |
121 | 7fa41e53 | Alexander Graf | |
122 | f3304eea | Alexander Graf | static int s390_virtio_device_init(VirtIOS390Device *dev, VirtIODevice *vdev) |
123 | f3304eea | Alexander Graf | { |
124 | f3304eea | Alexander Graf | VirtIOS390Bus *bus; |
125 | f3304eea | Alexander Graf | int dev_len;
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126 | f3304eea | Alexander Graf | |
127 | f3304eea | Alexander Graf | bus = DO_UPCAST(VirtIOS390Bus, bus, dev->qdev.parent_bus); |
128 | f3304eea | Alexander Graf | dev->vdev = vdev; |
129 | f3304eea | Alexander Graf | dev->dev_offs = bus->dev_offs; |
130 | f3304eea | Alexander Graf | dev->feat_len = sizeof(uint32_t); /* always keep 32 bits features */ |
131 | f3304eea | Alexander Graf | |
132 | f3304eea | Alexander Graf | dev_len = VIRTIO_DEV_OFFS_CONFIG; |
133 | f3304eea | Alexander Graf | dev_len += s390_virtio_device_num_vq(dev) * VIRTIO_VQCONFIG_LEN; |
134 | f3304eea | Alexander Graf | dev_len += dev->feat_len * 2;
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135 | f3304eea | Alexander Graf | dev_len += vdev->config_len; |
136 | f3304eea | Alexander Graf | |
137 | f3304eea | Alexander Graf | bus->dev_offs += dev_len; |
138 | f3304eea | Alexander Graf | |
139 | f3304eea | Alexander Graf | virtio_bind_device(vdev, &virtio_s390_bindings, dev); |
140 | 8172539d | Michael S. Tsirkin | dev->host_features = vdev->get_features(vdev, dev->host_features); |
141 | f3304eea | Alexander Graf | s390_virtio_device_sync(dev); |
142 | 4170aea1 | Jens Freimann | s390_virtio_reset_idx(dev); |
143 | 7fa41e53 | Alexander Graf | if (dev->qdev.hotplugged) {
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144 | 45fa769b | Andreas Färber | S390CPU *cpu = s390_cpu_addr2state(0);
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145 | 45fa769b | Andreas Färber | CPUS390XState *env = &cpu->env; |
146 | 7fa41e53 | Alexander Graf | s390_virtio_irq(env, VIRTIO_PARAM_DEV_ADD, dev->dev_offs); |
147 | 7fa41e53 | Alexander Graf | } |
148 | 7fa41e53 | Alexander Graf | |
149 | f3304eea | Alexander Graf | return 0; |
150 | f3304eea | Alexander Graf | } |
151 | f3304eea | Alexander Graf | |
152 | f3304eea | Alexander Graf | static int s390_virtio_net_init(VirtIOS390Device *dev) |
153 | f3304eea | Alexander Graf | { |
154 | f3304eea | Alexander Graf | VirtIODevice *vdev; |
155 | f3304eea | Alexander Graf | |
156 | f0c07c7c | Alex Williamson | vdev = virtio_net_init((DeviceState *)dev, &dev->nic, &dev->net); |
157 | f3304eea | Alexander Graf | if (!vdev) {
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158 | f3304eea | Alexander Graf | return -1; |
159 | f3304eea | Alexander Graf | } |
160 | f3304eea | Alexander Graf | |
161 | f3304eea | Alexander Graf | return s390_virtio_device_init(dev, vdev);
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162 | f3304eea | Alexander Graf | } |
163 | f3304eea | Alexander Graf | |
164 | f3304eea | Alexander Graf | static int s390_virtio_blk_init(VirtIOS390Device *dev) |
165 | f3304eea | Alexander Graf | { |
166 | f3304eea | Alexander Graf | VirtIODevice *vdev; |
167 | f3304eea | Alexander Graf | |
168 | 12c5674b | Paolo Bonzini | vdev = virtio_blk_init((DeviceState *)dev, &dev->blk); |
169 | f3304eea | Alexander Graf | if (!vdev) {
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170 | f3304eea | Alexander Graf | return -1; |
171 | f3304eea | Alexander Graf | } |
172 | f3304eea | Alexander Graf | |
173 | f3304eea | Alexander Graf | return s390_virtio_device_init(dev, vdev);
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174 | f3304eea | Alexander Graf | } |
175 | f3304eea | Alexander Graf | |
176 | 98b19252 | Amit Shah | static int s390_virtio_serial_init(VirtIOS390Device *dev) |
177 | f3304eea | Alexander Graf | { |
178 | f3304eea | Alexander Graf | VirtIOS390Bus *bus; |
179 | f3304eea | Alexander Graf | VirtIODevice *vdev; |
180 | f3304eea | Alexander Graf | int r;
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181 | f3304eea | Alexander Graf | |
182 | f3304eea | Alexander Graf | bus = DO_UPCAST(VirtIOS390Bus, bus, dev->qdev.parent_bus); |
183 | f3304eea | Alexander Graf | |
184 | 6be9b414 | Alexander Graf | vdev = virtio_serial_init((DeviceState *)dev, &dev->serial); |
185 | f3304eea | Alexander Graf | if (!vdev) {
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186 | f3304eea | Alexander Graf | return -1; |
187 | f3304eea | Alexander Graf | } |
188 | f3304eea | Alexander Graf | |
189 | f3304eea | Alexander Graf | r = s390_virtio_device_init(dev, vdev); |
190 | f3304eea | Alexander Graf | if (!r) {
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191 | f3304eea | Alexander Graf | bus->console = dev; |
192 | f3304eea | Alexander Graf | } |
193 | f3304eea | Alexander Graf | |
194 | f3304eea | Alexander Graf | return r;
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195 | f3304eea | Alexander Graf | } |
196 | f3304eea | Alexander Graf | |
197 | 973abc7f | Stefan Hajnoczi | static int s390_virtio_scsi_init(VirtIOS390Device *dev) |
198 | 973abc7f | Stefan Hajnoczi | { |
199 | 973abc7f | Stefan Hajnoczi | VirtIODevice *vdev; |
200 | 973abc7f | Stefan Hajnoczi | |
201 | 973abc7f | Stefan Hajnoczi | vdev = virtio_scsi_init((DeviceState *)dev, &dev->scsi); |
202 | 973abc7f | Stefan Hajnoczi | if (!vdev) {
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203 | 973abc7f | Stefan Hajnoczi | return -1; |
204 | 973abc7f | Stefan Hajnoczi | } |
205 | 973abc7f | Stefan Hajnoczi | |
206 | 973abc7f | Stefan Hajnoczi | return s390_virtio_device_init(dev, vdev);
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207 | 973abc7f | Stefan Hajnoczi | } |
208 | 973abc7f | Stefan Hajnoczi | |
209 | f3304eea | Alexander Graf | static uint64_t s390_virtio_device_vq_token(VirtIOS390Device *dev, int vq) |
210 | f3304eea | Alexander Graf | { |
211 | f3304eea | Alexander Graf | ram_addr_t token_off; |
212 | f3304eea | Alexander Graf | |
213 | f3304eea | Alexander Graf | token_off = (dev->dev_offs + VIRTIO_DEV_OFFS_CONFIG) + |
214 | f3304eea | Alexander Graf | (vq * VIRTIO_VQCONFIG_LEN) + |
215 | f3304eea | Alexander Graf | VIRTIO_VQCONFIG_OFFS_TOKEN; |
216 | f3304eea | Alexander Graf | |
217 | 04bc74ed | Alexander Graf | return ldq_be_phys(token_off);
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218 | f3304eea | Alexander Graf | } |
219 | f3304eea | Alexander Graf | |
220 | f3304eea | Alexander Graf | static ram_addr_t s390_virtio_device_num_vq(VirtIOS390Device *dev)
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221 | f3304eea | Alexander Graf | { |
222 | f3304eea | Alexander Graf | VirtIODevice *vdev = dev->vdev; |
223 | f3304eea | Alexander Graf | int num_vq;
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224 | f3304eea | Alexander Graf | |
225 | f3304eea | Alexander Graf | for (num_vq = 0; num_vq < VIRTIO_PCI_QUEUE_MAX; num_vq++) { |
226 | f3304eea | Alexander Graf | if (!virtio_queue_get_num(vdev, num_vq)) {
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227 | f3304eea | Alexander Graf | break;
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228 | f3304eea | Alexander Graf | } |
229 | f3304eea | Alexander Graf | } |
230 | f3304eea | Alexander Graf | |
231 | f3304eea | Alexander Graf | return num_vq;
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232 | f3304eea | Alexander Graf | } |
233 | f3304eea | Alexander Graf | |
234 | f3304eea | Alexander Graf | static ram_addr_t s390_virtio_next_ring(VirtIOS390Bus *bus)
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235 | f3304eea | Alexander Graf | { |
236 | f3304eea | Alexander Graf | ram_addr_t r = bus->next_ring; |
237 | f3304eea | Alexander Graf | |
238 | f3304eea | Alexander Graf | bus->next_ring += VIRTIO_RING_LEN; |
239 | f3304eea | Alexander Graf | return r;
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240 | f3304eea | Alexander Graf | } |
241 | f3304eea | Alexander Graf | |
242 | baf0b55a | Alexander Graf | void s390_virtio_device_sync(VirtIOS390Device *dev)
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243 | f3304eea | Alexander Graf | { |
244 | f3304eea | Alexander Graf | VirtIOS390Bus *bus = DO_UPCAST(VirtIOS390Bus, bus, dev->qdev.parent_bus); |
245 | f3304eea | Alexander Graf | ram_addr_t cur_offs; |
246 | f3304eea | Alexander Graf | uint8_t num_vq; |
247 | f3304eea | Alexander Graf | int i;
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248 | f3304eea | Alexander Graf | |
249 | f3304eea | Alexander Graf | virtio_reset(dev->vdev); |
250 | f3304eea | Alexander Graf | |
251 | f3304eea | Alexander Graf | /* Sync dev space */
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252 | f3304eea | Alexander Graf | stb_phys(dev->dev_offs + VIRTIO_DEV_OFFS_TYPE, dev->vdev->device_id); |
253 | f3304eea | Alexander Graf | |
254 | f3304eea | Alexander Graf | stb_phys(dev->dev_offs + VIRTIO_DEV_OFFS_NUM_VQ, s390_virtio_device_num_vq(dev)); |
255 | f3304eea | Alexander Graf | stb_phys(dev->dev_offs + VIRTIO_DEV_OFFS_FEATURE_LEN, dev->feat_len); |
256 | f3304eea | Alexander Graf | |
257 | f3304eea | Alexander Graf | stb_phys(dev->dev_offs + VIRTIO_DEV_OFFS_CONFIG_LEN, dev->vdev->config_len); |
258 | f3304eea | Alexander Graf | |
259 | f3304eea | Alexander Graf | num_vq = s390_virtio_device_num_vq(dev); |
260 | f3304eea | Alexander Graf | stb_phys(dev->dev_offs + VIRTIO_DEV_OFFS_NUM_VQ, num_vq); |
261 | f3304eea | Alexander Graf | |
262 | f3304eea | Alexander Graf | /* Sync virtqueues */
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263 | f3304eea | Alexander Graf | for (i = 0; i < num_vq; i++) { |
264 | f3304eea | Alexander Graf | ram_addr_t vq = (dev->dev_offs + VIRTIO_DEV_OFFS_CONFIG) + |
265 | f3304eea | Alexander Graf | (i * VIRTIO_VQCONFIG_LEN); |
266 | f3304eea | Alexander Graf | ram_addr_t vring; |
267 | f3304eea | Alexander Graf | |
268 | f3304eea | Alexander Graf | vring = s390_virtio_next_ring(bus); |
269 | f3304eea | Alexander Graf | virtio_queue_set_addr(dev->vdev, i, vring); |
270 | f3304eea | Alexander Graf | virtio_queue_set_vector(dev->vdev, i, i); |
271 | 04bc74ed | Alexander Graf | stq_be_phys(vq + VIRTIO_VQCONFIG_OFFS_ADDRESS, vring); |
272 | 04bc74ed | Alexander Graf | stw_be_phys(vq + VIRTIO_VQCONFIG_OFFS_NUM, virtio_queue_get_num(dev->vdev, i)); |
273 | f3304eea | Alexander Graf | } |
274 | f3304eea | Alexander Graf | |
275 | f3304eea | Alexander Graf | cur_offs = dev->dev_offs; |
276 | f3304eea | Alexander Graf | cur_offs += VIRTIO_DEV_OFFS_CONFIG; |
277 | f3304eea | Alexander Graf | cur_offs += num_vq * VIRTIO_VQCONFIG_LEN; |
278 | f3304eea | Alexander Graf | |
279 | f3304eea | Alexander Graf | /* Sync feature bitmap */
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280 | 04bc74ed | Alexander Graf | stl_le_phys(cur_offs, dev->host_features); |
281 | f3304eea | Alexander Graf | |
282 | f3304eea | Alexander Graf | dev->feat_offs = cur_offs + dev->feat_len; |
283 | f3304eea | Alexander Graf | cur_offs += dev->feat_len * 2;
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284 | f3304eea | Alexander Graf | |
285 | f3304eea | Alexander Graf | /* Sync config space */
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286 | f3304eea | Alexander Graf | if (dev->vdev->get_config) {
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287 | f3304eea | Alexander Graf | dev->vdev->get_config(dev->vdev, dev->vdev->config); |
288 | f3304eea | Alexander Graf | } |
289 | f3304eea | Alexander Graf | |
290 | 54f7b4a3 | Stefan Weil | cpu_physical_memory_write(cur_offs, |
291 | 54f7b4a3 | Stefan Weil | dev->vdev->config, dev->vdev->config_len); |
292 | f3304eea | Alexander Graf | cur_offs += dev->vdev->config_len; |
293 | f3304eea | Alexander Graf | } |
294 | f3304eea | Alexander Graf | |
295 | f3304eea | Alexander Graf | void s390_virtio_device_update_status(VirtIOS390Device *dev)
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296 | f3304eea | Alexander Graf | { |
297 | f3304eea | Alexander Graf | VirtIODevice *vdev = dev->vdev; |
298 | f3304eea | Alexander Graf | uint32_t features; |
299 | f3304eea | Alexander Graf | |
300 | 3e607cb5 | Michael S. Tsirkin | virtio_set_status(vdev, ldub_phys(dev->dev_offs + VIRTIO_DEV_OFFS_STATUS)); |
301 | f3304eea | Alexander Graf | |
302 | f3304eea | Alexander Graf | /* Update guest supported feature bitmap */
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303 | f3304eea | Alexander Graf | |
304 | 04bc74ed | Alexander Graf | features = bswap32(ldl_be_phys(dev->feat_offs)); |
305 | ad0c9332 | Paolo Bonzini | virtio_set_features(vdev, features); |
306 | f3304eea | Alexander Graf | } |
307 | f3304eea | Alexander Graf | |
308 | f3304eea | Alexander Graf | VirtIOS390Device *s390_virtio_bus_console(VirtIOS390Bus *bus) |
309 | f3304eea | Alexander Graf | { |
310 | f3304eea | Alexander Graf | return bus->console;
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311 | f3304eea | Alexander Graf | } |
312 | f3304eea | Alexander Graf | |
313 | f3304eea | Alexander Graf | /* Find a device by vring address */
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314 | f3304eea | Alexander Graf | VirtIOS390Device *s390_virtio_bus_find_vring(VirtIOS390Bus *bus, |
315 | f3304eea | Alexander Graf | ram_addr_t mem, |
316 | f3304eea | Alexander Graf | int *vq_num)
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317 | f3304eea | Alexander Graf | { |
318 | 0866aca1 | Anthony Liguori | BusChild *kid; |
319 | f3304eea | Alexander Graf | int i;
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320 | f3304eea | Alexander Graf | |
321 | 0866aca1 | Anthony Liguori | QTAILQ_FOREACH(kid, &bus->bus.children, sibling) { |
322 | 0866aca1 | Anthony Liguori | VirtIOS390Device *dev = (VirtIOS390Device *)kid->child; |
323 | 0866aca1 | Anthony Liguori | |
324 | f3304eea | Alexander Graf | for(i = 0; i < VIRTIO_PCI_QUEUE_MAX; i++) { |
325 | 0866aca1 | Anthony Liguori | if (!virtio_queue_get_addr(dev->vdev, i))
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326 | f3304eea | Alexander Graf | break;
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327 | 0866aca1 | Anthony Liguori | if (virtio_queue_get_addr(dev->vdev, i) == mem) {
|
328 | f3304eea | Alexander Graf | if (vq_num) {
|
329 | f3304eea | Alexander Graf | *vq_num = i; |
330 | f3304eea | Alexander Graf | } |
331 | 0866aca1 | Anthony Liguori | return dev;
|
332 | f3304eea | Alexander Graf | } |
333 | f3304eea | Alexander Graf | } |
334 | f3304eea | Alexander Graf | } |
335 | f3304eea | Alexander Graf | |
336 | f3304eea | Alexander Graf | return NULL; |
337 | f3304eea | Alexander Graf | } |
338 | f3304eea | Alexander Graf | |
339 | f3304eea | Alexander Graf | /* Find a device by device descriptor location */
|
340 | f3304eea | Alexander Graf | VirtIOS390Device *s390_virtio_bus_find_mem(VirtIOS390Bus *bus, ram_addr_t mem) |
341 | f3304eea | Alexander Graf | { |
342 | 0866aca1 | Anthony Liguori | BusChild *kid; |
343 | f3304eea | Alexander Graf | |
344 | 0866aca1 | Anthony Liguori | QTAILQ_FOREACH(kid, &bus->bus.children, sibling) { |
345 | 0866aca1 | Anthony Liguori | VirtIOS390Device *dev = (VirtIOS390Device *)kid->child; |
346 | 0866aca1 | Anthony Liguori | if (dev->dev_offs == mem) {
|
347 | 0866aca1 | Anthony Liguori | return dev;
|
348 | f3304eea | Alexander Graf | } |
349 | f3304eea | Alexander Graf | } |
350 | f3304eea | Alexander Graf | |
351 | f3304eea | Alexander Graf | return NULL; |
352 | f3304eea | Alexander Graf | } |
353 | f3304eea | Alexander Graf | |
354 | f3304eea | Alexander Graf | static void virtio_s390_notify(void *opaque, uint16_t vector) |
355 | f3304eea | Alexander Graf | { |
356 | f3304eea | Alexander Graf | VirtIOS390Device *dev = (VirtIOS390Device*)opaque; |
357 | f3304eea | Alexander Graf | uint64_t token = s390_virtio_device_vq_token(dev, vector); |
358 | 45fa769b | Andreas Färber | S390CPU *cpu = s390_cpu_addr2state(0);
|
359 | 45fa769b | Andreas Färber | CPUS390XState *env = &cpu->env; |
360 | f3304eea | Alexander Graf | |
361 | 7fa41e53 | Alexander Graf | s390_virtio_irq(env, 0, token);
|
362 | f3304eea | Alexander Graf | } |
363 | f3304eea | Alexander Graf | |
364 | 8172539d | Michael S. Tsirkin | static unsigned virtio_s390_get_features(void *opaque) |
365 | 8172539d | Michael S. Tsirkin | { |
366 | 8172539d | Michael S. Tsirkin | VirtIOS390Device *dev = (VirtIOS390Device*)opaque; |
367 | 8172539d | Michael S. Tsirkin | return dev->host_features;
|
368 | 8172539d | Michael S. Tsirkin | } |
369 | 8172539d | Michael S. Tsirkin | |
370 | f3304eea | Alexander Graf | /**************** S390 Virtio Bus Device Descriptions *******************/
|
371 | f3304eea | Alexander Graf | |
372 | f3304eea | Alexander Graf | static const VirtIOBindings virtio_s390_bindings = { |
373 | f3304eea | Alexander Graf | .notify = virtio_s390_notify, |
374 | 8172539d | Michael S. Tsirkin | .get_features = virtio_s390_get_features, |
375 | f3304eea | Alexander Graf | }; |
376 | f3304eea | Alexander Graf | |
377 | 39bffca2 | Anthony Liguori | static Property s390_virtio_net_properties[] = {
|
378 | 39bffca2 | Anthony Liguori | DEFINE_NIC_PROPERTIES(VirtIOS390Device, nic), |
379 | 39bffca2 | Anthony Liguori | DEFINE_PROP_UINT32("x-txtimer", VirtIOS390Device,
|
380 | 39bffca2 | Anthony Liguori | net.txtimer, TX_TIMER_INTERVAL), |
381 | 39bffca2 | Anthony Liguori | DEFINE_PROP_INT32("x-txburst", VirtIOS390Device,
|
382 | 39bffca2 | Anthony Liguori | net.txburst, TX_BURST), |
383 | 39bffca2 | Anthony Liguori | DEFINE_PROP_STRING("tx", VirtIOS390Device, net.tx),
|
384 | 39bffca2 | Anthony Liguori | DEFINE_PROP_END_OF_LIST(), |
385 | 39bffca2 | Anthony Liguori | }; |
386 | 39bffca2 | Anthony Liguori | |
387 | 19b6914a | Anthony Liguori | static void s390_virtio_net_class_init(ObjectClass *klass, void *data) |
388 | 19b6914a | Anthony Liguori | { |
389 | 39bffca2 | Anthony Liguori | DeviceClass *dc = DEVICE_CLASS(klass); |
390 | 39bffca2 | Anthony Liguori | VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass); |
391 | 19b6914a | Anthony Liguori | |
392 | 39bffca2 | Anthony Liguori | k->init = s390_virtio_net_init; |
393 | 39bffca2 | Anthony Liguori | dc->props = s390_virtio_net_properties; |
394 | 19b6914a | Anthony Liguori | } |
395 | 19b6914a | Anthony Liguori | |
396 | 39bffca2 | Anthony Liguori | static TypeInfo s390_virtio_net = {
|
397 | 39bffca2 | Anthony Liguori | .name = "virtio-net-s390",
|
398 | 39bffca2 | Anthony Liguori | .parent = TYPE_VIRTIO_S390_DEVICE, |
399 | 39bffca2 | Anthony Liguori | .instance_size = sizeof(VirtIOS390Device),
|
400 | 39bffca2 | Anthony Liguori | .class_init = s390_virtio_net_class_init, |
401 | 39bffca2 | Anthony Liguori | }; |
402 | 39bffca2 | Anthony Liguori | |
403 | 39bffca2 | Anthony Liguori | static Property s390_virtio_blk_properties[] = {
|
404 | 12c5674b | Paolo Bonzini | DEFINE_BLOCK_PROPERTIES(VirtIOS390Device, blk.conf), |
405 | e63e7fde | Markus Armbruster | DEFINE_BLOCK_CHS_PROPERTIES(VirtIOS390Device, blk.conf), |
406 | 12c5674b | Paolo Bonzini | DEFINE_PROP_STRING("serial", VirtIOS390Device, blk.serial),
|
407 | a6c5c84a | Paolo Bonzini | #ifdef __linux__
|
408 | a6c5c84a | Paolo Bonzini | DEFINE_PROP_BIT("scsi", VirtIOS390Device, blk.scsi, 0, true), |
409 | a6c5c84a | Paolo Bonzini | #endif
|
410 | 39bffca2 | Anthony Liguori | DEFINE_PROP_END_OF_LIST(), |
411 | f3304eea | Alexander Graf | }; |
412 | f3304eea | Alexander Graf | |
413 | 19b6914a | Anthony Liguori | static void s390_virtio_blk_class_init(ObjectClass *klass, void *data) |
414 | 19b6914a | Anthony Liguori | { |
415 | 39bffca2 | Anthony Liguori | DeviceClass *dc = DEVICE_CLASS(klass); |
416 | 39bffca2 | Anthony Liguori | VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass); |
417 | 19b6914a | Anthony Liguori | |
418 | 39bffca2 | Anthony Liguori | k->init = s390_virtio_blk_init; |
419 | 39bffca2 | Anthony Liguori | dc->props = s390_virtio_blk_properties; |
420 | 19b6914a | Anthony Liguori | } |
421 | 19b6914a | Anthony Liguori | |
422 | 39bffca2 | Anthony Liguori | static TypeInfo s390_virtio_blk = {
|
423 | 39bffca2 | Anthony Liguori | .name = "virtio-blk-s390",
|
424 | 39bffca2 | Anthony Liguori | .parent = TYPE_VIRTIO_S390_DEVICE, |
425 | 39bffca2 | Anthony Liguori | .instance_size = sizeof(VirtIOS390Device),
|
426 | 39bffca2 | Anthony Liguori | .class_init = s390_virtio_blk_class_init, |
427 | 39bffca2 | Anthony Liguori | }; |
428 | 39bffca2 | Anthony Liguori | |
429 | 39bffca2 | Anthony Liguori | static Property s390_virtio_serial_properties[] = {
|
430 | 39bffca2 | Anthony Liguori | DEFINE_PROP_UINT32("max_ports", VirtIOS390Device,
|
431 | 39bffca2 | Anthony Liguori | serial.max_virtserial_ports, 31),
|
432 | 39bffca2 | Anthony Liguori | DEFINE_PROP_END_OF_LIST(), |
433 | f3304eea | Alexander Graf | }; |
434 | f3304eea | Alexander Graf | |
435 | 19b6914a | Anthony Liguori | static void s390_virtio_serial_class_init(ObjectClass *klass, void *data) |
436 | 19b6914a | Anthony Liguori | { |
437 | 39bffca2 | Anthony Liguori | DeviceClass *dc = DEVICE_CLASS(klass); |
438 | 39bffca2 | Anthony Liguori | VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass); |
439 | 19b6914a | Anthony Liguori | |
440 | 39bffca2 | Anthony Liguori | k->init = s390_virtio_serial_init; |
441 | 39bffca2 | Anthony Liguori | dc->props = s390_virtio_serial_properties; |
442 | 19b6914a | Anthony Liguori | } |
443 | 19b6914a | Anthony Liguori | |
444 | 39bffca2 | Anthony Liguori | static TypeInfo s390_virtio_serial = {
|
445 | 39bffca2 | Anthony Liguori | .name = "virtio-serial-s390",
|
446 | 39bffca2 | Anthony Liguori | .parent = TYPE_VIRTIO_S390_DEVICE, |
447 | 39bffca2 | Anthony Liguori | .instance_size = sizeof(VirtIOS390Device),
|
448 | 39bffca2 | Anthony Liguori | .class_init = s390_virtio_serial_class_init, |
449 | f3304eea | Alexander Graf | }; |
450 | f3304eea | Alexander Graf | |
451 | d307af79 | Anthony Liguori | static int s390_virtio_busdev_init(DeviceState *dev) |
452 | f3304eea | Alexander Graf | { |
453 | f3304eea | Alexander Graf | VirtIOS390Device *_dev = (VirtIOS390Device *)dev; |
454 | 19b6914a | Anthony Liguori | VirtIOS390DeviceClass *_info = VIRTIO_S390_DEVICE_GET_CLASS(dev); |
455 | f3304eea | Alexander Graf | |
456 | f3304eea | Alexander Graf | return _info->init(_dev);
|
457 | f3304eea | Alexander Graf | } |
458 | f3304eea | Alexander Graf | |
459 | 39bffca2 | Anthony Liguori | static void virtio_s390_device_class_init(ObjectClass *klass, void *data) |
460 | f3304eea | Alexander Graf | { |
461 | 39bffca2 | Anthony Liguori | DeviceClass *dc = DEVICE_CLASS(klass); |
462 | f3304eea | Alexander Graf | |
463 | 39bffca2 | Anthony Liguori | dc->init = s390_virtio_busdev_init; |
464 | 0d936928 | Anthony Liguori | dc->bus_type = TYPE_S390_VIRTIO_BUS; |
465 | 39bffca2 | Anthony Liguori | dc->unplug = qdev_simple_unplug_cb; |
466 | f3304eea | Alexander Graf | } |
467 | f3304eea | Alexander Graf | |
468 | 19b6914a | Anthony Liguori | static TypeInfo virtio_s390_device_info = {
|
469 | 19b6914a | Anthony Liguori | .name = TYPE_VIRTIO_S390_DEVICE, |
470 | 19b6914a | Anthony Liguori | .parent = TYPE_DEVICE, |
471 | 19b6914a | Anthony Liguori | .instance_size = sizeof(VirtIOS390Device),
|
472 | 39bffca2 | Anthony Liguori | .class_init = virtio_s390_device_class_init, |
473 | e87f7fc6 | Anthony Liguori | .class_size = sizeof(VirtIOS390DeviceClass),
|
474 | 19b6914a | Anthony Liguori | .abstract = true,
|
475 | 19b6914a | Anthony Liguori | }; |
476 | 19b6914a | Anthony Liguori | |
477 | 973abc7f | Stefan Hajnoczi | static Property s390_virtio_scsi_properties[] = {
|
478 | 973abc7f | Stefan Hajnoczi | DEFINE_VIRTIO_SCSI_PROPERTIES(VirtIOS390Device, host_features, scsi), |
479 | 973abc7f | Stefan Hajnoczi | DEFINE_PROP_END_OF_LIST(), |
480 | 973abc7f | Stefan Hajnoczi | }; |
481 | 973abc7f | Stefan Hajnoczi | |
482 | 973abc7f | Stefan Hajnoczi | static void s390_virtio_scsi_class_init(ObjectClass *klass, void *data) |
483 | 973abc7f | Stefan Hajnoczi | { |
484 | 973abc7f | Stefan Hajnoczi | DeviceClass *dc = DEVICE_CLASS(klass); |
485 | 973abc7f | Stefan Hajnoczi | VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass); |
486 | 973abc7f | Stefan Hajnoczi | |
487 | 973abc7f | Stefan Hajnoczi | k->init = s390_virtio_scsi_init; |
488 | 973abc7f | Stefan Hajnoczi | dc->props = s390_virtio_scsi_properties; |
489 | 973abc7f | Stefan Hajnoczi | } |
490 | 973abc7f | Stefan Hajnoczi | |
491 | 973abc7f | Stefan Hajnoczi | static TypeInfo s390_virtio_scsi = {
|
492 | 973abc7f | Stefan Hajnoczi | .name = "virtio-scsi-s390",
|
493 | 973abc7f | Stefan Hajnoczi | .parent = TYPE_VIRTIO_S390_DEVICE, |
494 | 973abc7f | Stefan Hajnoczi | .instance_size = sizeof(VirtIOS390Device),
|
495 | 973abc7f | Stefan Hajnoczi | .class_init = s390_virtio_scsi_class_init, |
496 | 973abc7f | Stefan Hajnoczi | }; |
497 | f3304eea | Alexander Graf | |
498 | f3304eea | Alexander Graf | /***************** S390 Virtio Bus Bridge Device *******************/
|
499 | f3304eea | Alexander Graf | /* Only required to have the virtio bus as child in the system bus */
|
500 | f3304eea | Alexander Graf | |
501 | f3304eea | Alexander Graf | static int s390_virtio_bridge_init(SysBusDevice *dev) |
502 | f3304eea | Alexander Graf | { |
503 | f3304eea | Alexander Graf | /* nothing */
|
504 | f3304eea | Alexander Graf | return 0; |
505 | f3304eea | Alexander Graf | } |
506 | f3304eea | Alexander Graf | |
507 | 999e12bb | Anthony Liguori | static void s390_virtio_bridge_class_init(ObjectClass *klass, void *data) |
508 | 999e12bb | Anthony Liguori | { |
509 | 39bffca2 | Anthony Liguori | DeviceClass *dc = DEVICE_CLASS(klass); |
510 | 999e12bb | Anthony Liguori | SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); |
511 | 999e12bb | Anthony Liguori | |
512 | 999e12bb | Anthony Liguori | k->init = s390_virtio_bridge_init; |
513 | 39bffca2 | Anthony Liguori | dc->no_user = 1;
|
514 | 999e12bb | Anthony Liguori | } |
515 | 999e12bb | Anthony Liguori | |
516 | 39bffca2 | Anthony Liguori | static TypeInfo s390_virtio_bridge_info = {
|
517 | 39bffca2 | Anthony Liguori | .name = "s390-virtio-bridge",
|
518 | 39bffca2 | Anthony Liguori | .parent = TYPE_SYS_BUS_DEVICE, |
519 | 39bffca2 | Anthony Liguori | .instance_size = sizeof(SysBusDevice),
|
520 | 39bffca2 | Anthony Liguori | .class_init = s390_virtio_bridge_class_init, |
521 | f3304eea | Alexander Graf | }; |
522 | f3304eea | Alexander Graf | |
523 | 83f7d43a | Andreas Färber | static void s390_virtio_register_types(void) |
524 | f3304eea | Alexander Graf | { |
525 | 0d936928 | Anthony Liguori | type_register_static(&s390_virtio_bus_info); |
526 | 83f7d43a | Andreas Färber | type_register_static(&virtio_s390_device_info); |
527 | 83f7d43a | Andreas Färber | type_register_static(&s390_virtio_serial); |
528 | 83f7d43a | Andreas Färber | type_register_static(&s390_virtio_blk); |
529 | 83f7d43a | Andreas Färber | type_register_static(&s390_virtio_net); |
530 | 973abc7f | Stefan Hajnoczi | type_register_static(&s390_virtio_scsi); |
531 | 39bffca2 | Anthony Liguori | type_register_static(&s390_virtio_bridge_info); |
532 | f3304eea | Alexander Graf | } |
533 | f3304eea | Alexander Graf | |
534 | 83f7d43a | Andreas Färber | type_init(s390_virtio_register_types) |