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Commit | Line | Data |
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53c25cea PB |
1 | /* |
2 | * Virtio PCI Bindings | |
3 | * | |
4 | * Copyright IBM, Corp. 2007 | |
5 | * Copyright (c) 2009 CodeSourcery | |
6 | * | |
7 | * Authors: | |
8 | * Anthony Liguori <aliguori@us.ibm.com> | |
9 | * Paul Brook <paul@codesourcery.com> | |
10 | * | |
11 | * This work is licensed under the terms of the GNU GPL, version 2. See | |
12 | * the COPYING file in the top-level directory. | |
13 | * | |
6b620ca3 PB |
14 | * Contributions after 2012-01-13 are licensed under the terms of the |
15 | * GNU GPL, version 2 or (at your option) any later version. | |
53c25cea PB |
16 | */ |
17 | ||
9b8bfe21 | 18 | #include "qemu/osdep.h" |
53c25cea | 19 | |
cbbe4f50 | 20 | #include "standard-headers/linux/virtio_pci.h" |
0d09e41a PB |
21 | #include "hw/virtio/virtio.h" |
22 | #include "hw/virtio/virtio-blk.h" | |
23 | #include "hw/virtio/virtio-net.h" | |
24 | #include "hw/virtio/virtio-serial.h" | |
25 | #include "hw/virtio/virtio-scsi.h" | |
26 | #include "hw/virtio/virtio-balloon.h" | |
f958c8aa | 27 | #include "hw/virtio/virtio-input.h" |
83c9f4ca | 28 | #include "hw/pci/pci.h" |
da34e65c | 29 | #include "qapi/error.h" |
1de7afc9 | 30 | #include "qemu/error-report.h" |
83c9f4ca PB |
31 | #include "hw/pci/msi.h" |
32 | #include "hw/pci/msix.h" | |
33 | #include "hw/loader.h" | |
9c17d615 | 34 | #include "sysemu/kvm.h" |
4be74634 | 35 | #include "sysemu/block-backend.h" |
47b43a1f | 36 | #include "virtio-pci.h" |
1de7afc9 | 37 | #include "qemu/range.h" |
0d09e41a | 38 | #include "hw/virtio/virtio-bus.h" |
24a6e7f4 | 39 | #include "qapi/visitor.h" |
53c25cea | 40 | |
cbbe4f50 | 41 | #define VIRTIO_PCI_REGION_SIZE(dev) VIRTIO_PCI_CONFIG_OFF(msix_present(dev)) |
aba800a3 | 42 | |
c17bef33 MT |
43 | #undef VIRTIO_PCI_CONFIG |
44 | ||
aba800a3 MT |
45 | /* The remaining space is defined by each driver as the per-driver |
46 | * configuration space */ | |
cbbe4f50 | 47 | #define VIRTIO_PCI_CONFIG_SIZE(dev) VIRTIO_PCI_CONFIG_OFF(msix_enabled(dev)) |
53c25cea | 48 | |
ac7af112 AF |
49 | static void virtio_pci_bus_new(VirtioBusState *bus, size_t bus_size, |
50 | VirtIOPCIProxy *dev); | |
75fd6f13 | 51 | static void virtio_pci_reset(DeviceState *qdev); |
d51fcfac | 52 | |
53c25cea | 53 | /* virtio device */ |
d2a0ccc6 MT |
54 | /* DeviceState to VirtIOPCIProxy. For use off data-path. TODO: use QOM. */ |
55 | static inline VirtIOPCIProxy *to_virtio_pci_proxy(DeviceState *d) | |
56 | { | |
57 | return container_of(d, VirtIOPCIProxy, pci_dev.qdev); | |
58 | } | |
53c25cea | 59 | |
d2a0ccc6 MT |
60 | /* DeviceState to VirtIOPCIProxy. Note: used on datapath, |
61 | * be careful and test performance if you change this. | |
62 | */ | |
63 | static inline VirtIOPCIProxy *to_virtio_pci_proxy_fast(DeviceState *d) | |
53c25cea | 64 | { |
d2a0ccc6 MT |
65 | return container_of(d, VirtIOPCIProxy, pci_dev.qdev); |
66 | } | |
67 | ||
68 | static void virtio_pci_notify(DeviceState *d, uint16_t vector) | |
69 | { | |
70 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy_fast(d); | |
a3fc66d9 | 71 | |
aba800a3 MT |
72 | if (msix_enabled(&proxy->pci_dev)) |
73 | msix_notify(&proxy->pci_dev, vector); | |
a3fc66d9 PB |
74 | else { |
75 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); | |
0687c37c | 76 | pci_set_irq(&proxy->pci_dev, atomic_read(&vdev->isr) & 1); |
a3fc66d9 | 77 | } |
53c25cea PB |
78 | } |
79 | ||
d2a0ccc6 | 80 | static void virtio_pci_save_config(DeviceState *d, QEMUFile *f) |
ff24bd58 | 81 | { |
d2a0ccc6 | 82 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
a3fc66d9 PB |
83 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
84 | ||
ff24bd58 MT |
85 | pci_device_save(&proxy->pci_dev, f); |
86 | msix_save(&proxy->pci_dev, f); | |
87 | if (msix_present(&proxy->pci_dev)) | |
a3fc66d9 | 88 | qemu_put_be16(f, vdev->config_vector); |
ff24bd58 MT |
89 | } |
90 | ||
a6df8adf JW |
91 | static void virtio_pci_load_modern_queue_state(VirtIOPCIQueue *vq, |
92 | QEMUFile *f) | |
93 | { | |
94 | vq->num = qemu_get_be16(f); | |
95 | vq->enabled = qemu_get_be16(f); | |
96 | vq->desc[0] = qemu_get_be32(f); | |
97 | vq->desc[1] = qemu_get_be32(f); | |
98 | vq->avail[0] = qemu_get_be32(f); | |
99 | vq->avail[1] = qemu_get_be32(f); | |
100 | vq->used[0] = qemu_get_be32(f); | |
101 | vq->used[1] = qemu_get_be32(f); | |
102 | } | |
103 | ||
104 | static bool virtio_pci_has_extra_state(DeviceState *d) | |
105 | { | |
106 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); | |
107 | ||
108 | return proxy->flags & VIRTIO_PCI_FLAG_MIGRATE_EXTRA; | |
109 | } | |
110 | ||
2c21ee76 JD |
111 | static int get_virtio_pci_modern_state(QEMUFile *f, void *pv, size_t size, |
112 | VMStateField *field) | |
a6df8adf JW |
113 | { |
114 | VirtIOPCIProxy *proxy = pv; | |
115 | int i; | |
116 | ||
117 | proxy->dfselect = qemu_get_be32(f); | |
118 | proxy->gfselect = qemu_get_be32(f); | |
119 | proxy->guest_features[0] = qemu_get_be32(f); | |
120 | proxy->guest_features[1] = qemu_get_be32(f); | |
121 | for (i = 0; i < VIRTIO_QUEUE_MAX; i++) { | |
122 | virtio_pci_load_modern_queue_state(&proxy->vqs[i], f); | |
123 | } | |
124 | ||
125 | return 0; | |
126 | } | |
127 | ||
128 | static void virtio_pci_save_modern_queue_state(VirtIOPCIQueue *vq, | |
129 | QEMUFile *f) | |
130 | { | |
131 | qemu_put_be16(f, vq->num); | |
132 | qemu_put_be16(f, vq->enabled); | |
133 | qemu_put_be32(f, vq->desc[0]); | |
134 | qemu_put_be32(f, vq->desc[1]); | |
135 | qemu_put_be32(f, vq->avail[0]); | |
136 | qemu_put_be32(f, vq->avail[1]); | |
137 | qemu_put_be32(f, vq->used[0]); | |
138 | qemu_put_be32(f, vq->used[1]); | |
139 | } | |
140 | ||
2c21ee76 JD |
141 | static int put_virtio_pci_modern_state(QEMUFile *f, void *pv, size_t size, |
142 | VMStateField *field, QJSON *vmdesc) | |
a6df8adf JW |
143 | { |
144 | VirtIOPCIProxy *proxy = pv; | |
145 | int i; | |
146 | ||
147 | qemu_put_be32(f, proxy->dfselect); | |
148 | qemu_put_be32(f, proxy->gfselect); | |
149 | qemu_put_be32(f, proxy->guest_features[0]); | |
150 | qemu_put_be32(f, proxy->guest_features[1]); | |
151 | for (i = 0; i < VIRTIO_QUEUE_MAX; i++) { | |
152 | virtio_pci_save_modern_queue_state(&proxy->vqs[i], f); | |
153 | } | |
2c21ee76 JD |
154 | |
155 | return 0; | |
a6df8adf JW |
156 | } |
157 | ||
158 | static const VMStateInfo vmstate_info_virtio_pci_modern_state = { | |
159 | .name = "virtqueue_state", | |
160 | .get = get_virtio_pci_modern_state, | |
161 | .put = put_virtio_pci_modern_state, | |
162 | }; | |
163 | ||
164 | static bool virtio_pci_modern_state_needed(void *opaque) | |
165 | { | |
166 | VirtIOPCIProxy *proxy = opaque; | |
167 | ||
9a4c0e22 | 168 | return virtio_pci_modern(proxy); |
a6df8adf JW |
169 | } |
170 | ||
171 | static const VMStateDescription vmstate_virtio_pci_modern_state = { | |
172 | .name = "virtio_pci/modern_state", | |
173 | .version_id = 1, | |
174 | .minimum_version_id = 1, | |
175 | .needed = &virtio_pci_modern_state_needed, | |
176 | .fields = (VMStateField[]) { | |
177 | { | |
178 | .name = "modern_state", | |
179 | .version_id = 0, | |
180 | .field_exists = NULL, | |
181 | .size = 0, | |
182 | .info = &vmstate_info_virtio_pci_modern_state, | |
183 | .flags = VMS_SINGLE, | |
184 | .offset = 0, | |
185 | }, | |
186 | VMSTATE_END_OF_LIST() | |
187 | } | |
188 | }; | |
189 | ||
190 | static const VMStateDescription vmstate_virtio_pci = { | |
191 | .name = "virtio_pci", | |
192 | .version_id = 1, | |
193 | .minimum_version_id = 1, | |
194 | .minimum_version_id_old = 1, | |
195 | .fields = (VMStateField[]) { | |
196 | VMSTATE_END_OF_LIST() | |
197 | }, | |
198 | .subsections = (const VMStateDescription*[]) { | |
199 | &vmstate_virtio_pci_modern_state, | |
200 | NULL | |
201 | } | |
202 | }; | |
203 | ||
204 | static void virtio_pci_save_extra_state(DeviceState *d, QEMUFile *f) | |
205 | { | |
206 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); | |
207 | ||
208 | vmstate_save_state(f, &vmstate_virtio_pci, proxy, NULL); | |
209 | } | |
210 | ||
211 | static int virtio_pci_load_extra_state(DeviceState *d, QEMUFile *f) | |
212 | { | |
213 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); | |
214 | ||
215 | return vmstate_load_state(f, &vmstate_virtio_pci, proxy, 1); | |
216 | } | |
217 | ||
d2a0ccc6 | 218 | static void virtio_pci_save_queue(DeviceState *d, int n, QEMUFile *f) |
ff24bd58 | 219 | { |
d2a0ccc6 | 220 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
a3fc66d9 PB |
221 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
222 | ||
ff24bd58 | 223 | if (msix_present(&proxy->pci_dev)) |
a3fc66d9 | 224 | qemu_put_be16(f, virtio_queue_vector(vdev, n)); |
ff24bd58 MT |
225 | } |
226 | ||
d2a0ccc6 | 227 | static int virtio_pci_load_config(DeviceState *d, QEMUFile *f) |
ff24bd58 | 228 | { |
d2a0ccc6 | 229 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
a3fc66d9 PB |
230 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
231 | ||
ff24bd58 MT |
232 | int ret; |
233 | ret = pci_device_load(&proxy->pci_dev, f); | |
e6da7680 | 234 | if (ret) { |
ff24bd58 | 235 | return ret; |
e6da7680 | 236 | } |
3cac001e | 237 | msix_unuse_all_vectors(&proxy->pci_dev); |
ff24bd58 | 238 | msix_load(&proxy->pci_dev, f); |
e6da7680 | 239 | if (msix_present(&proxy->pci_dev)) { |
a3fc66d9 | 240 | qemu_get_be16s(f, &vdev->config_vector); |
e6da7680 | 241 | } else { |
a3fc66d9 | 242 | vdev->config_vector = VIRTIO_NO_VECTOR; |
e6da7680 | 243 | } |
a3fc66d9 PB |
244 | if (vdev->config_vector != VIRTIO_NO_VECTOR) { |
245 | return msix_vector_use(&proxy->pci_dev, vdev->config_vector); | |
e6da7680 | 246 | } |
ff24bd58 MT |
247 | return 0; |
248 | } | |
249 | ||
d2a0ccc6 | 250 | static int virtio_pci_load_queue(DeviceState *d, int n, QEMUFile *f) |
ff24bd58 | 251 | { |
d2a0ccc6 | 252 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
a3fc66d9 PB |
253 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
254 | ||
ff24bd58 | 255 | uint16_t vector; |
e6da7680 MT |
256 | if (msix_present(&proxy->pci_dev)) { |
257 | qemu_get_be16s(f, &vector); | |
258 | } else { | |
259 | vector = VIRTIO_NO_VECTOR; | |
260 | } | |
a3fc66d9 | 261 | virtio_queue_set_vector(vdev, n, vector); |
e6da7680 MT |
262 | if (vector != VIRTIO_NO_VECTOR) { |
263 | return msix_vector_use(&proxy->pci_dev, vector); | |
264 | } | |
a6df8adf | 265 | |
ff24bd58 MT |
266 | return 0; |
267 | } | |
268 | ||
8e93cef1 | 269 | static bool virtio_pci_ioeventfd_enabled(DeviceState *d) |
9f06e71a CH |
270 | { |
271 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); | |
272 | ||
8e93cef1 | 273 | return (proxy->flags & VIRTIO_PCI_FLAG_USE_IOEVENTFD) != 0; |
9f06e71a CH |
274 | } |
275 | ||
975acc0a JW |
276 | #define QEMU_VIRTIO_PCI_QUEUE_MEM_MULT 0x1000 |
277 | ||
d9997d89 MA |
278 | static inline int virtio_pci_queue_mem_mult(struct VirtIOPCIProxy *proxy) |
279 | { | |
280 | return (proxy->flags & VIRTIO_PCI_FLAG_PAGE_PER_VQ) ? | |
281 | QEMU_VIRTIO_PCI_QUEUE_MEM_MULT : 4; | |
282 | } | |
283 | ||
9f06e71a CH |
284 | static int virtio_pci_ioeventfd_assign(DeviceState *d, EventNotifier *notifier, |
285 | int n, bool assign) | |
25db9ebe | 286 | { |
9f06e71a | 287 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
a3fc66d9 PB |
288 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
289 | VirtQueue *vq = virtio_get_queue(vdev, n); | |
9a4c0e22 MA |
290 | bool legacy = virtio_pci_legacy(proxy); |
291 | bool modern = virtio_pci_modern(proxy); | |
bc85ccfd | 292 | bool fast_mmio = kvm_ioeventfd_any_length_enabled(); |
9824d2a3 | 293 | bool modern_pio = proxy->flags & VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY; |
588255ad | 294 | MemoryRegion *modern_mr = &proxy->notify.mr; |
9824d2a3 | 295 | MemoryRegion *modern_notify_mr = &proxy->notify_pio.mr; |
975acc0a | 296 | MemoryRegion *legacy_mr = &proxy->bar; |
d9997d89 | 297 | hwaddr modern_addr = virtio_pci_queue_mem_mult(proxy) * |
975acc0a JW |
298 | virtio_get_queue_index(vq); |
299 | hwaddr legacy_addr = VIRTIO_PCI_QUEUE_NOTIFY; | |
da146d0a | 300 | |
25db9ebe | 301 | if (assign) { |
975acc0a | 302 | if (modern) { |
bc85ccfd JW |
303 | if (fast_mmio) { |
304 | memory_region_add_eventfd(modern_mr, modern_addr, 0, | |
305 | false, n, notifier); | |
306 | } else { | |
307 | memory_region_add_eventfd(modern_mr, modern_addr, 2, | |
308 | false, n, notifier); | |
309 | } | |
9824d2a3 JW |
310 | if (modern_pio) { |
311 | memory_region_add_eventfd(modern_notify_mr, 0, 2, | |
312 | true, n, notifier); | |
313 | } | |
975acc0a JW |
314 | } |
315 | if (legacy) { | |
316 | memory_region_add_eventfd(legacy_mr, legacy_addr, 2, | |
317 | true, n, notifier); | |
318 | } | |
25db9ebe | 319 | } else { |
975acc0a | 320 | if (modern) { |
bc85ccfd JW |
321 | if (fast_mmio) { |
322 | memory_region_del_eventfd(modern_mr, modern_addr, 0, | |
323 | false, n, notifier); | |
324 | } else { | |
325 | memory_region_del_eventfd(modern_mr, modern_addr, 2, | |
326 | false, n, notifier); | |
327 | } | |
9824d2a3 JW |
328 | if (modern_pio) { |
329 | memory_region_del_eventfd(modern_notify_mr, 0, 2, | |
330 | true, n, notifier); | |
331 | } | |
975acc0a JW |
332 | } |
333 | if (legacy) { | |
334 | memory_region_del_eventfd(legacy_mr, legacy_addr, 2, | |
335 | true, n, notifier); | |
336 | } | |
25db9ebe | 337 | } |
9f06e71a | 338 | return 0; |
25db9ebe SH |
339 | } |
340 | ||
b36e3914 | 341 | static void virtio_pci_start_ioeventfd(VirtIOPCIProxy *proxy) |
25db9ebe | 342 | { |
9f06e71a | 343 | virtio_bus_start_ioeventfd(&proxy->bus); |
25db9ebe SH |
344 | } |
345 | ||
b36e3914 | 346 | static void virtio_pci_stop_ioeventfd(VirtIOPCIProxy *proxy) |
25db9ebe | 347 | { |
9f06e71a | 348 | virtio_bus_stop_ioeventfd(&proxy->bus); |
25db9ebe SH |
349 | } |
350 | ||
53c25cea PB |
351 | static void virtio_ioport_write(void *opaque, uint32_t addr, uint32_t val) |
352 | { | |
353 | VirtIOPCIProxy *proxy = opaque; | |
a3fc66d9 | 354 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
a8170e5e | 355 | hwaddr pa; |
53c25cea | 356 | |
53c25cea PB |
357 | switch (addr) { |
358 | case VIRTIO_PCI_GUEST_FEATURES: | |
181103cd FK |
359 | /* Guest does not negotiate properly? We have to assume nothing. */ |
360 | if (val & (1 << VIRTIO_F_BAD_FEATURE)) { | |
361 | val = virtio_bus_get_vdev_bad_features(&proxy->bus); | |
362 | } | |
ad0c9332 | 363 | virtio_set_features(vdev, val); |
53c25cea PB |
364 | break; |
365 | case VIRTIO_PCI_QUEUE_PFN: | |
a8170e5e | 366 | pa = (hwaddr)val << VIRTIO_PCI_QUEUE_ADDR_SHIFT; |
1b8e9b27 | 367 | if (pa == 0) { |
75fd6f13 | 368 | virtio_pci_reset(DEVICE(proxy)); |
1b8e9b27 | 369 | } |
7055e687 MT |
370 | else |
371 | virtio_queue_set_addr(vdev, vdev->queue_sel, pa); | |
53c25cea PB |
372 | break; |
373 | case VIRTIO_PCI_QUEUE_SEL: | |
87b3bd1c | 374 | if (val < VIRTIO_QUEUE_MAX) |
53c25cea PB |
375 | vdev->queue_sel = val; |
376 | break; | |
377 | case VIRTIO_PCI_QUEUE_NOTIFY: | |
87b3bd1c | 378 | if (val < VIRTIO_QUEUE_MAX) { |
7157e2e2 SH |
379 | virtio_queue_notify(vdev, val); |
380 | } | |
53c25cea PB |
381 | break; |
382 | case VIRTIO_PCI_STATUS: | |
25db9ebe SH |
383 | if (!(val & VIRTIO_CONFIG_S_DRIVER_OK)) { |
384 | virtio_pci_stop_ioeventfd(proxy); | |
385 | } | |
386 | ||
3e607cb5 | 387 | virtio_set_status(vdev, val & 0xFF); |
25db9ebe SH |
388 | |
389 | if (val & VIRTIO_CONFIG_S_DRIVER_OK) { | |
390 | virtio_pci_start_ioeventfd(proxy); | |
391 | } | |
392 | ||
1b8e9b27 | 393 | if (vdev->status == 0) { |
75fd6f13 | 394 | virtio_pci_reset(DEVICE(proxy)); |
1b8e9b27 | 395 | } |
c81131db | 396 | |
e43c0b2e MT |
397 | /* Linux before 2.6.34 drives the device without enabling |
398 | the PCI device bus master bit. Enable it automatically | |
399 | for the guest. This is a PCI spec violation but so is | |
400 | initiating DMA with bus master bit clear. */ | |
401 | if (val == (VIRTIO_CONFIG_S_ACKNOWLEDGE | VIRTIO_CONFIG_S_DRIVER)) { | |
402 | pci_default_write_config(&proxy->pci_dev, PCI_COMMAND, | |
403 | proxy->pci_dev.config[PCI_COMMAND] | | |
404 | PCI_COMMAND_MASTER, 1); | |
405 | } | |
53c25cea | 406 | break; |
aba800a3 MT |
407 | case VIRTIO_MSI_CONFIG_VECTOR: |
408 | msix_vector_unuse(&proxy->pci_dev, vdev->config_vector); | |
409 | /* Make it possible for guest to discover an error took place. */ | |
410 | if (msix_vector_use(&proxy->pci_dev, val) < 0) | |
411 | val = VIRTIO_NO_VECTOR; | |
412 | vdev->config_vector = val; | |
413 | break; | |
414 | case VIRTIO_MSI_QUEUE_VECTOR: | |
415 | msix_vector_unuse(&proxy->pci_dev, | |
416 | virtio_queue_vector(vdev, vdev->queue_sel)); | |
417 | /* Make it possible for guest to discover an error took place. */ | |
418 | if (msix_vector_use(&proxy->pci_dev, val) < 0) | |
419 | val = VIRTIO_NO_VECTOR; | |
420 | virtio_queue_set_vector(vdev, vdev->queue_sel, val); | |
421 | break; | |
422 | default: | |
4e02d460 SH |
423 | error_report("%s: unexpected address 0x%x value 0x%x", |
424 | __func__, addr, val); | |
aba800a3 | 425 | break; |
53c25cea PB |
426 | } |
427 | } | |
428 | ||
aba800a3 | 429 | static uint32_t virtio_ioport_read(VirtIOPCIProxy *proxy, uint32_t addr) |
53c25cea | 430 | { |
a3fc66d9 | 431 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
53c25cea PB |
432 | uint32_t ret = 0xFFFFFFFF; |
433 | ||
53c25cea PB |
434 | switch (addr) { |
435 | case VIRTIO_PCI_HOST_FEATURES: | |
6b8f1020 | 436 | ret = vdev->host_features; |
53c25cea PB |
437 | break; |
438 | case VIRTIO_PCI_GUEST_FEATURES: | |
704a76fc | 439 | ret = vdev->guest_features; |
53c25cea PB |
440 | break; |
441 | case VIRTIO_PCI_QUEUE_PFN: | |
442 | ret = virtio_queue_get_addr(vdev, vdev->queue_sel) | |
443 | >> VIRTIO_PCI_QUEUE_ADDR_SHIFT; | |
444 | break; | |
445 | case VIRTIO_PCI_QUEUE_NUM: | |
446 | ret = virtio_queue_get_num(vdev, vdev->queue_sel); | |
447 | break; | |
448 | case VIRTIO_PCI_QUEUE_SEL: | |
449 | ret = vdev->queue_sel; | |
450 | break; | |
451 | case VIRTIO_PCI_STATUS: | |
452 | ret = vdev->status; | |
453 | break; | |
454 | case VIRTIO_PCI_ISR: | |
455 | /* reading from the ISR also clears it. */ | |
0687c37c | 456 | ret = atomic_xchg(&vdev->isr, 0); |
9e64f8a3 | 457 | pci_irq_deassert(&proxy->pci_dev); |
53c25cea | 458 | break; |
aba800a3 MT |
459 | case VIRTIO_MSI_CONFIG_VECTOR: |
460 | ret = vdev->config_vector; | |
461 | break; | |
462 | case VIRTIO_MSI_QUEUE_VECTOR: | |
463 | ret = virtio_queue_vector(vdev, vdev->queue_sel); | |
464 | break; | |
53c25cea PB |
465 | default: |
466 | break; | |
467 | } | |
468 | ||
469 | return ret; | |
470 | } | |
471 | ||
df6db5b3 AG |
472 | static uint64_t virtio_pci_config_read(void *opaque, hwaddr addr, |
473 | unsigned size) | |
53c25cea PB |
474 | { |
475 | VirtIOPCIProxy *proxy = opaque; | |
a3fc66d9 | 476 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
cbbe4f50 | 477 | uint32_t config = VIRTIO_PCI_CONFIG_SIZE(&proxy->pci_dev); |
df6db5b3 | 478 | uint64_t val = 0; |
aba800a3 | 479 | if (addr < config) { |
df6db5b3 | 480 | return virtio_ioport_read(proxy, addr); |
aba800a3 MT |
481 | } |
482 | addr -= config; | |
53c25cea | 483 | |
df6db5b3 AG |
484 | switch (size) { |
485 | case 1: | |
a3fc66d9 | 486 | val = virtio_config_readb(vdev, addr); |
df6db5b3 AG |
487 | break; |
488 | case 2: | |
a3fc66d9 | 489 | val = virtio_config_readw(vdev, addr); |
616a6552 | 490 | if (virtio_is_big_endian(vdev)) { |
8e4a424b BS |
491 | val = bswap16(val); |
492 | } | |
df6db5b3 AG |
493 | break; |
494 | case 4: | |
a3fc66d9 | 495 | val = virtio_config_readl(vdev, addr); |
616a6552 | 496 | if (virtio_is_big_endian(vdev)) { |
8e4a424b BS |
497 | val = bswap32(val); |
498 | } | |
df6db5b3 | 499 | break; |
82afa586 | 500 | } |
df6db5b3 | 501 | return val; |
53c25cea PB |
502 | } |
503 | ||
df6db5b3 AG |
504 | static void virtio_pci_config_write(void *opaque, hwaddr addr, |
505 | uint64_t val, unsigned size) | |
53c25cea PB |
506 | { |
507 | VirtIOPCIProxy *proxy = opaque; | |
cbbe4f50 | 508 | uint32_t config = VIRTIO_PCI_CONFIG_SIZE(&proxy->pci_dev); |
a3fc66d9 | 509 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
aba800a3 MT |
510 | if (addr < config) { |
511 | virtio_ioport_write(proxy, addr, val); | |
512 | return; | |
513 | } | |
514 | addr -= config; | |
df6db5b3 AG |
515 | /* |
516 | * Virtio-PCI is odd. Ioports are LE but config space is target native | |
517 | * endian. | |
518 | */ | |
519 | switch (size) { | |
520 | case 1: | |
a3fc66d9 | 521 | virtio_config_writeb(vdev, addr, val); |
df6db5b3 AG |
522 | break; |
523 | case 2: | |
616a6552 | 524 | if (virtio_is_big_endian(vdev)) { |
8e4a424b BS |
525 | val = bswap16(val); |
526 | } | |
a3fc66d9 | 527 | virtio_config_writew(vdev, addr, val); |
df6db5b3 AG |
528 | break; |
529 | case 4: | |
616a6552 | 530 | if (virtio_is_big_endian(vdev)) { |
8e4a424b BS |
531 | val = bswap32(val); |
532 | } | |
a3fc66d9 | 533 | virtio_config_writel(vdev, addr, val); |
df6db5b3 | 534 | break; |
82afa586 | 535 | } |
53c25cea PB |
536 | } |
537 | ||
da146d0a | 538 | static const MemoryRegionOps virtio_pci_config_ops = { |
df6db5b3 AG |
539 | .read = virtio_pci_config_read, |
540 | .write = virtio_pci_config_write, | |
541 | .impl = { | |
542 | .min_access_size = 1, | |
543 | .max_access_size = 4, | |
544 | }, | |
8e4a424b | 545 | .endianness = DEVICE_LITTLE_ENDIAN, |
da146d0a | 546 | }; |
aba800a3 | 547 | |
1e40356c MT |
548 | /* Below are generic functions to do memcpy from/to an address space, |
549 | * without byteswaps, with input validation. | |
550 | * | |
551 | * As regular address_space_* APIs all do some kind of byteswap at least for | |
552 | * some host/target combinations, we are forced to explicitly convert to a | |
553 | * known-endianness integer value. | |
554 | * It doesn't really matter which endian format to go through, so the code | |
555 | * below selects the endian that causes the least amount of work on the given | |
556 | * host. | |
557 | * | |
558 | * Note: host pointer must be aligned. | |
559 | */ | |
560 | static | |
561 | void virtio_address_space_write(AddressSpace *as, hwaddr addr, | |
562 | const uint8_t *buf, int len) | |
563 | { | |
564 | uint32_t val; | |
565 | ||
566 | /* address_space_* APIs assume an aligned address. | |
567 | * As address is under guest control, handle illegal values. | |
568 | */ | |
569 | addr &= ~(len - 1); | |
570 | ||
571 | /* Make sure caller aligned buf properly */ | |
572 | assert(!(((uintptr_t)buf) & (len - 1))); | |
573 | ||
574 | switch (len) { | |
575 | case 1: | |
576 | val = pci_get_byte(buf); | |
577 | address_space_stb(as, addr, val, MEMTXATTRS_UNSPECIFIED, NULL); | |
578 | break; | |
579 | case 2: | |
580 | val = pci_get_word(buf); | |
581 | address_space_stw_le(as, addr, val, MEMTXATTRS_UNSPECIFIED, NULL); | |
582 | break; | |
583 | case 4: | |
584 | val = pci_get_long(buf); | |
585 | address_space_stl_le(as, addr, val, MEMTXATTRS_UNSPECIFIED, NULL); | |
586 | break; | |
587 | default: | |
588 | /* As length is under guest control, handle illegal values. */ | |
589 | break; | |
590 | } | |
591 | } | |
592 | ||
593 | static void | |
594 | virtio_address_space_read(AddressSpace *as, hwaddr addr, uint8_t *buf, int len) | |
595 | { | |
596 | uint32_t val; | |
597 | ||
598 | /* address_space_* APIs assume an aligned address. | |
599 | * As address is under guest control, handle illegal values. | |
600 | */ | |
601 | addr &= ~(len - 1); | |
602 | ||
603 | /* Make sure caller aligned buf properly */ | |
604 | assert(!(((uintptr_t)buf) & (len - 1))); | |
605 | ||
606 | switch (len) { | |
607 | case 1: | |
608 | val = address_space_ldub(as, addr, MEMTXATTRS_UNSPECIFIED, NULL); | |
609 | pci_set_byte(buf, val); | |
610 | break; | |
611 | case 2: | |
612 | val = address_space_lduw_le(as, addr, MEMTXATTRS_UNSPECIFIED, NULL); | |
613 | pci_set_word(buf, val); | |
614 | break; | |
615 | case 4: | |
616 | val = address_space_ldl_le(as, addr, MEMTXATTRS_UNSPECIFIED, NULL); | |
617 | pci_set_long(buf, val); | |
618 | break; | |
619 | default: | |
620 | /* As length is under guest control, handle illegal values. */ | |
621 | break; | |
622 | } | |
623 | } | |
624 | ||
aba800a3 MT |
625 | static void virtio_write_config(PCIDevice *pci_dev, uint32_t address, |
626 | uint32_t val, int len) | |
627 | { | |
ed757e14 | 628 | VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev); |
a3fc66d9 | 629 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
ada434cd | 630 | struct virtio_pci_cfg_cap *cfg; |
ed757e14 | 631 | |
1129714f MT |
632 | pci_default_write_config(pci_dev, address, val, len); |
633 | ||
634 | if (range_covers_byte(address, len, PCI_COMMAND) && | |
68a27b20 | 635 | !(pci_dev->config[PCI_COMMAND] & PCI_COMMAND_MASTER)) { |
1129714f | 636 | virtio_pci_stop_ioeventfd(proxy); |
45363e46 | 637 | virtio_set_status(vdev, vdev->status & ~VIRTIO_CONFIG_S_DRIVER_OK); |
ed757e14 | 638 | } |
ada434cd MT |
639 | |
640 | if (proxy->config_cap && | |
641 | ranges_overlap(address, len, proxy->config_cap + offsetof(struct virtio_pci_cfg_cap, | |
642 | pci_cfg_data), | |
643 | sizeof cfg->pci_cfg_data)) { | |
644 | uint32_t off; | |
645 | uint32_t len; | |
646 | ||
647 | cfg = (void *)(proxy->pci_dev.config + proxy->config_cap); | |
648 | off = le32_to_cpu(cfg->cap.offset); | |
649 | len = le32_to_cpu(cfg->cap.length); | |
650 | ||
2a639123 MT |
651 | if (len == 1 || len == 2 || len == 4) { |
652 | assert(len <= sizeof cfg->pci_cfg_data); | |
1e40356c MT |
653 | virtio_address_space_write(&proxy->modern_as, off, |
654 | cfg->pci_cfg_data, len); | |
ada434cd MT |
655 | } |
656 | } | |
657 | } | |
658 | ||
659 | static uint32_t virtio_read_config(PCIDevice *pci_dev, | |
660 | uint32_t address, int len) | |
661 | { | |
662 | VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev); | |
663 | struct virtio_pci_cfg_cap *cfg; | |
664 | ||
665 | if (proxy->config_cap && | |
666 | ranges_overlap(address, len, proxy->config_cap + offsetof(struct virtio_pci_cfg_cap, | |
667 | pci_cfg_data), | |
668 | sizeof cfg->pci_cfg_data)) { | |
669 | uint32_t off; | |
670 | uint32_t len; | |
671 | ||
672 | cfg = (void *)(proxy->pci_dev.config + proxy->config_cap); | |
673 | off = le32_to_cpu(cfg->cap.offset); | |
674 | len = le32_to_cpu(cfg->cap.length); | |
675 | ||
2a639123 MT |
676 | if (len == 1 || len == 2 || len == 4) { |
677 | assert(len <= sizeof cfg->pci_cfg_data); | |
1e40356c MT |
678 | virtio_address_space_read(&proxy->modern_as, off, |
679 | cfg->pci_cfg_data, len); | |
ada434cd MT |
680 | } |
681 | } | |
682 | ||
683 | return pci_default_read_config(pci_dev, address, len); | |
53c25cea PB |
684 | } |
685 | ||
7d37d351 JK |
686 | static int kvm_virtio_pci_vq_vector_use(VirtIOPCIProxy *proxy, |
687 | unsigned int queue_no, | |
d1f6af6a | 688 | unsigned int vector) |
7d37d351 | 689 | { |
7d37d351 | 690 | VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector]; |
15b2bd18 | 691 | int ret; |
7d37d351 JK |
692 | |
693 | if (irqfd->users == 0) { | |
d1f6af6a | 694 | ret = kvm_irqchip_add_msi_route(kvm_state, vector, &proxy->pci_dev); |
7d37d351 JK |
695 | if (ret < 0) { |
696 | return ret; | |
697 | } | |
698 | irqfd->virq = ret; | |
699 | } | |
700 | irqfd->users++; | |
7d37d351 JK |
701 | return 0; |
702 | } | |
703 | ||
704 | static void kvm_virtio_pci_vq_vector_release(VirtIOPCIProxy *proxy, | |
7d37d351 | 705 | unsigned int vector) |
774345f9 MT |
706 | { |
707 | VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector]; | |
708 | if (--irqfd->users == 0) { | |
709 | kvm_irqchip_release_virq(kvm_state, irqfd->virq); | |
710 | } | |
711 | } | |
712 | ||
f1d0f15a MT |
713 | static int kvm_virtio_pci_irqfd_use(VirtIOPCIProxy *proxy, |
714 | unsigned int queue_no, | |
715 | unsigned int vector) | |
716 | { | |
717 | VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector]; | |
a3fc66d9 PB |
718 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
719 | VirtQueue *vq = virtio_get_queue(vdev, queue_no); | |
f1d0f15a | 720 | EventNotifier *n = virtio_queue_get_guest_notifier(vq); |
9be38598 | 721 | return kvm_irqchip_add_irqfd_notifier_gsi(kvm_state, n, NULL, irqfd->virq); |
f1d0f15a MT |
722 | } |
723 | ||
724 | static void kvm_virtio_pci_irqfd_release(VirtIOPCIProxy *proxy, | |
725 | unsigned int queue_no, | |
726 | unsigned int vector) | |
7d37d351 | 727 | { |
a3fc66d9 PB |
728 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
729 | VirtQueue *vq = virtio_get_queue(vdev, queue_no); | |
15b2bd18 | 730 | EventNotifier *n = virtio_queue_get_guest_notifier(vq); |
7d37d351 | 731 | VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector]; |
15b2bd18 | 732 | int ret; |
7d37d351 | 733 | |
1c9b71a7 | 734 | ret = kvm_irqchip_remove_irqfd_notifier_gsi(kvm_state, n, irqfd->virq); |
7d37d351 | 735 | assert(ret == 0); |
f1d0f15a | 736 | } |
7d37d351 | 737 | |
774345f9 MT |
738 | static int kvm_virtio_pci_vector_use(VirtIOPCIProxy *proxy, int nvqs) |
739 | { | |
740 | PCIDevice *dev = &proxy->pci_dev; | |
a3fc66d9 | 741 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
181103cd | 742 | VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); |
774345f9 MT |
743 | unsigned int vector; |
744 | int ret, queue_no; | |
774345f9 MT |
745 | |
746 | for (queue_no = 0; queue_no < nvqs; queue_no++) { | |
747 | if (!virtio_queue_get_num(vdev, queue_no)) { | |
748 | break; | |
749 | } | |
750 | vector = virtio_queue_vector(vdev, queue_no); | |
751 | if (vector >= msix_nr_vectors_allocated(dev)) { | |
752 | continue; | |
753 | } | |
d1f6af6a | 754 | ret = kvm_virtio_pci_vq_vector_use(proxy, queue_no, vector); |
774345f9 MT |
755 | if (ret < 0) { |
756 | goto undo; | |
7d37d351 | 757 | } |
f1d0f15a MT |
758 | /* If guest supports masking, set up irqfd now. |
759 | * Otherwise, delay until unmasked in the frontend. | |
760 | */ | |
5669655a | 761 | if (vdev->use_guest_notifier_mask && k->guest_notifier_mask) { |
f1d0f15a MT |
762 | ret = kvm_virtio_pci_irqfd_use(proxy, queue_no, vector); |
763 | if (ret < 0) { | |
764 | kvm_virtio_pci_vq_vector_release(proxy, vector); | |
765 | goto undo; | |
766 | } | |
767 | } | |
7d37d351 | 768 | } |
7d37d351 | 769 | return 0; |
774345f9 MT |
770 | |
771 | undo: | |
772 | while (--queue_no >= 0) { | |
773 | vector = virtio_queue_vector(vdev, queue_no); | |
774 | if (vector >= msix_nr_vectors_allocated(dev)) { | |
775 | continue; | |
776 | } | |
5669655a | 777 | if (vdev->use_guest_notifier_mask && k->guest_notifier_mask) { |
e387f99e | 778 | kvm_virtio_pci_irqfd_release(proxy, queue_no, vector); |
f1d0f15a | 779 | } |
774345f9 MT |
780 | kvm_virtio_pci_vq_vector_release(proxy, vector); |
781 | } | |
782 | return ret; | |
7d37d351 JK |
783 | } |
784 | ||
774345f9 MT |
785 | static void kvm_virtio_pci_vector_release(VirtIOPCIProxy *proxy, int nvqs) |
786 | { | |
787 | PCIDevice *dev = &proxy->pci_dev; | |
a3fc66d9 | 788 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
774345f9 MT |
789 | unsigned int vector; |
790 | int queue_no; | |
181103cd | 791 | VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); |
774345f9 MT |
792 | |
793 | for (queue_no = 0; queue_no < nvqs; queue_no++) { | |
794 | if (!virtio_queue_get_num(vdev, queue_no)) { | |
795 | break; | |
796 | } | |
797 | vector = virtio_queue_vector(vdev, queue_no); | |
798 | if (vector >= msix_nr_vectors_allocated(dev)) { | |
799 | continue; | |
800 | } | |
f1d0f15a MT |
801 | /* If guest supports masking, clean up irqfd now. |
802 | * Otherwise, it was cleaned when masked in the frontend. | |
803 | */ | |
5669655a | 804 | if (vdev->use_guest_notifier_mask && k->guest_notifier_mask) { |
e387f99e | 805 | kvm_virtio_pci_irqfd_release(proxy, queue_no, vector); |
f1d0f15a | 806 | } |
774345f9 MT |
807 | kvm_virtio_pci_vq_vector_release(proxy, vector); |
808 | } | |
809 | } | |
810 | ||
a38b2c49 MT |
811 | static int virtio_pci_vq_vector_unmask(VirtIOPCIProxy *proxy, |
812 | unsigned int queue_no, | |
813 | unsigned int vector, | |
814 | MSIMessage msg) | |
774345f9 | 815 | { |
a3fc66d9 PB |
816 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
817 | VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); | |
818 | VirtQueue *vq = virtio_get_queue(vdev, queue_no); | |
774345f9 | 819 | EventNotifier *n = virtio_queue_get_guest_notifier(vq); |
a38b2c49 | 820 | VirtIOIRQFD *irqfd; |
53510bfc | 821 | int ret = 0; |
774345f9 | 822 | |
a38b2c49 MT |
823 | if (proxy->vector_irqfd) { |
824 | irqfd = &proxy->vector_irqfd[vector]; | |
825 | if (irqfd->msg.data != msg.data || irqfd->msg.address != msg.address) { | |
dc9f06ca PF |
826 | ret = kvm_irqchip_update_msi_route(kvm_state, irqfd->virq, msg, |
827 | &proxy->pci_dev); | |
a38b2c49 MT |
828 | if (ret < 0) { |
829 | return ret; | |
830 | } | |
3f1fea0f | 831 | kvm_irqchip_commit_routes(kvm_state); |
774345f9 MT |
832 | } |
833 | } | |
834 | ||
f1d0f15a MT |
835 | /* If guest supports masking, irqfd is already setup, unmask it. |
836 | * Otherwise, set it up now. | |
837 | */ | |
5669655a | 838 | if (vdev->use_guest_notifier_mask && k->guest_notifier_mask) { |
a3fc66d9 | 839 | k->guest_notifier_mask(vdev, queue_no, false); |
f1d0f15a | 840 | /* Test after unmasking to avoid losing events. */ |
181103cd | 841 | if (k->guest_notifier_pending && |
a3fc66d9 | 842 | k->guest_notifier_pending(vdev, queue_no)) { |
f1d0f15a MT |
843 | event_notifier_set(n); |
844 | } | |
845 | } else { | |
846 | ret = kvm_virtio_pci_irqfd_use(proxy, queue_no, vector); | |
7d37d351 | 847 | } |
774345f9 | 848 | return ret; |
7d37d351 JK |
849 | } |
850 | ||
a38b2c49 | 851 | static void virtio_pci_vq_vector_mask(VirtIOPCIProxy *proxy, |
7d37d351 JK |
852 | unsigned int queue_no, |
853 | unsigned int vector) | |
854 | { | |
a3fc66d9 PB |
855 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
856 | VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); | |
181103cd | 857 | |
f1d0f15a MT |
858 | /* If guest supports masking, keep irqfd but mask it. |
859 | * Otherwise, clean it up now. | |
860 | */ | |
5669655a | 861 | if (vdev->use_guest_notifier_mask && k->guest_notifier_mask) { |
a3fc66d9 | 862 | k->guest_notifier_mask(vdev, queue_no, true); |
f1d0f15a | 863 | } else { |
e387f99e | 864 | kvm_virtio_pci_irqfd_release(proxy, queue_no, vector); |
f1d0f15a | 865 | } |
7d37d351 JK |
866 | } |
867 | ||
a38b2c49 MT |
868 | static int virtio_pci_vector_unmask(PCIDevice *dev, unsigned vector, |
869 | MSIMessage msg) | |
7d37d351 JK |
870 | { |
871 | VirtIOPCIProxy *proxy = container_of(dev, VirtIOPCIProxy, pci_dev); | |
a3fc66d9 | 872 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
851c2a75 JW |
873 | VirtQueue *vq = virtio_vector_first_queue(vdev, vector); |
874 | int ret, index, unmasked = 0; | |
7d37d351 | 875 | |
851c2a75 JW |
876 | while (vq) { |
877 | index = virtio_get_queue_index(vq); | |
878 | if (!virtio_queue_get_num(vdev, index)) { | |
7d37d351 JK |
879 | break; |
880 | } | |
6652d081 JW |
881 | if (index < proxy->nvqs_with_notifiers) { |
882 | ret = virtio_pci_vq_vector_unmask(proxy, index, vector, msg); | |
883 | if (ret < 0) { | |
884 | goto undo; | |
885 | } | |
886 | ++unmasked; | |
7d37d351 | 887 | } |
851c2a75 | 888 | vq = virtio_vector_next_queue(vq); |
7d37d351 | 889 | } |
851c2a75 | 890 | |
7d37d351 JK |
891 | return 0; |
892 | ||
893 | undo: | |
851c2a75 | 894 | vq = virtio_vector_first_queue(vdev, vector); |
6652d081 | 895 | while (vq && unmasked >= 0) { |
851c2a75 | 896 | index = virtio_get_queue_index(vq); |
6652d081 JW |
897 | if (index < proxy->nvqs_with_notifiers) { |
898 | virtio_pci_vq_vector_mask(proxy, index, vector); | |
899 | --unmasked; | |
900 | } | |
851c2a75 | 901 | vq = virtio_vector_next_queue(vq); |
7d37d351 JK |
902 | } |
903 | return ret; | |
904 | } | |
905 | ||
a38b2c49 | 906 | static void virtio_pci_vector_mask(PCIDevice *dev, unsigned vector) |
7d37d351 JK |
907 | { |
908 | VirtIOPCIProxy *proxy = container_of(dev, VirtIOPCIProxy, pci_dev); | |
a3fc66d9 | 909 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
851c2a75 JW |
910 | VirtQueue *vq = virtio_vector_first_queue(vdev, vector); |
911 | int index; | |
7d37d351 | 912 | |
851c2a75 JW |
913 | while (vq) { |
914 | index = virtio_get_queue_index(vq); | |
915 | if (!virtio_queue_get_num(vdev, index)) { | |
7d37d351 JK |
916 | break; |
917 | } | |
6652d081 JW |
918 | if (index < proxy->nvqs_with_notifiers) { |
919 | virtio_pci_vq_vector_mask(proxy, index, vector); | |
920 | } | |
851c2a75 | 921 | vq = virtio_vector_next_queue(vq); |
7d37d351 JK |
922 | } |
923 | } | |
924 | ||
a38b2c49 MT |
925 | static void virtio_pci_vector_poll(PCIDevice *dev, |
926 | unsigned int vector_start, | |
927 | unsigned int vector_end) | |
89d62be9 MT |
928 | { |
929 | VirtIOPCIProxy *proxy = container_of(dev, VirtIOPCIProxy, pci_dev); | |
a3fc66d9 | 930 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
181103cd | 931 | VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); |
89d62be9 MT |
932 | int queue_no; |
933 | unsigned int vector; | |
934 | EventNotifier *notifier; | |
935 | VirtQueue *vq; | |
936 | ||
2d620f59 | 937 | for (queue_no = 0; queue_no < proxy->nvqs_with_notifiers; queue_no++) { |
89d62be9 MT |
938 | if (!virtio_queue_get_num(vdev, queue_no)) { |
939 | break; | |
940 | } | |
941 | vector = virtio_queue_vector(vdev, queue_no); | |
942 | if (vector < vector_start || vector >= vector_end || | |
943 | !msix_is_masked(dev, vector)) { | |
944 | continue; | |
945 | } | |
946 | vq = virtio_get_queue(vdev, queue_no); | |
947 | notifier = virtio_queue_get_guest_notifier(vq); | |
181103cd FK |
948 | if (k->guest_notifier_pending) { |
949 | if (k->guest_notifier_pending(vdev, queue_no)) { | |
f1d0f15a MT |
950 | msix_set_pending(dev, vector); |
951 | } | |
952 | } else if (event_notifier_test_and_clear(notifier)) { | |
89d62be9 MT |
953 | msix_set_pending(dev, vector); |
954 | } | |
955 | } | |
956 | } | |
957 | ||
958 | static int virtio_pci_set_guest_notifier(DeviceState *d, int n, bool assign, | |
959 | bool with_irqfd) | |
ade80dc8 | 960 | { |
d2a0ccc6 | 961 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
a3fc66d9 PB |
962 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
963 | VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev); | |
964 | VirtQueue *vq = virtio_get_queue(vdev, n); | |
ade80dc8 MT |
965 | EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); |
966 | ||
967 | if (assign) { | |
968 | int r = event_notifier_init(notifier, 0); | |
969 | if (r < 0) { | |
970 | return r; | |
971 | } | |
89d62be9 | 972 | virtio_queue_set_guest_notifier_fd_handler(vq, true, with_irqfd); |
ade80dc8 | 973 | } else { |
89d62be9 | 974 | virtio_queue_set_guest_notifier_fd_handler(vq, false, with_irqfd); |
ade80dc8 MT |
975 | event_notifier_cleanup(notifier); |
976 | } | |
977 | ||
5669655a VK |
978 | if (!msix_enabled(&proxy->pci_dev) && |
979 | vdev->use_guest_notifier_mask && | |
980 | vdc->guest_notifier_mask) { | |
a3fc66d9 | 981 | vdc->guest_notifier_mask(vdev, n, !assign); |
62c96360 MT |
982 | } |
983 | ||
ade80dc8 MT |
984 | return 0; |
985 | } | |
986 | ||
d2a0ccc6 | 987 | static bool virtio_pci_query_guest_notifiers(DeviceState *d) |
5430a28f | 988 | { |
d2a0ccc6 | 989 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
5430a28f MT |
990 | return msix_enabled(&proxy->pci_dev); |
991 | } | |
992 | ||
2d620f59 | 993 | static int virtio_pci_set_guest_notifiers(DeviceState *d, int nvqs, bool assign) |
54dd9321 | 994 | { |
d2a0ccc6 | 995 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
a3fc66d9 | 996 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
181103cd | 997 | VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); |
54dd9321 | 998 | int r, n; |
89d62be9 MT |
999 | bool with_irqfd = msix_enabled(&proxy->pci_dev) && |
1000 | kvm_msi_via_irqfd_enabled(); | |
54dd9321 | 1001 | |
87b3bd1c | 1002 | nvqs = MIN(nvqs, VIRTIO_QUEUE_MAX); |
2d620f59 MT |
1003 | |
1004 | /* When deassigning, pass a consistent nvqs value | |
1005 | * to avoid leaking notifiers. | |
1006 | */ | |
1007 | assert(assign || nvqs == proxy->nvqs_with_notifiers); | |
1008 | ||
1009 | proxy->nvqs_with_notifiers = nvqs; | |
1010 | ||
7d37d351 | 1011 | /* Must unset vector notifier while guest notifier is still assigned */ |
181103cd | 1012 | if ((proxy->vector_irqfd || k->guest_notifier_mask) && !assign) { |
7d37d351 | 1013 | msix_unset_vector_notifiers(&proxy->pci_dev); |
a38b2c49 MT |
1014 | if (proxy->vector_irqfd) { |
1015 | kvm_virtio_pci_vector_release(proxy, nvqs); | |
1016 | g_free(proxy->vector_irqfd); | |
1017 | proxy->vector_irqfd = NULL; | |
1018 | } | |
7d37d351 JK |
1019 | } |
1020 | ||
2d620f59 | 1021 | for (n = 0; n < nvqs; n++) { |
54dd9321 MT |
1022 | if (!virtio_queue_get_num(vdev, n)) { |
1023 | break; | |
1024 | } | |
1025 | ||
23fe2b3f | 1026 | r = virtio_pci_set_guest_notifier(d, n, assign, with_irqfd); |
54dd9321 MT |
1027 | if (r < 0) { |
1028 | goto assign_error; | |
1029 | } | |
1030 | } | |
1031 | ||
7d37d351 | 1032 | /* Must set vector notifier after guest notifier has been assigned */ |
181103cd | 1033 | if ((with_irqfd || k->guest_notifier_mask) && assign) { |
a38b2c49 MT |
1034 | if (with_irqfd) { |
1035 | proxy->vector_irqfd = | |
1036 | g_malloc0(sizeof(*proxy->vector_irqfd) * | |
1037 | msix_nr_vectors_allocated(&proxy->pci_dev)); | |
1038 | r = kvm_virtio_pci_vector_use(proxy, nvqs); | |
1039 | if (r < 0) { | |
1040 | goto assign_error; | |
1041 | } | |
774345f9 | 1042 | } |
7d37d351 | 1043 | r = msix_set_vector_notifiers(&proxy->pci_dev, |
a38b2c49 MT |
1044 | virtio_pci_vector_unmask, |
1045 | virtio_pci_vector_mask, | |
1046 | virtio_pci_vector_poll); | |
7d37d351 | 1047 | if (r < 0) { |
774345f9 | 1048 | goto notifiers_error; |
7d37d351 JK |
1049 | } |
1050 | } | |
1051 | ||
54dd9321 MT |
1052 | return 0; |
1053 | ||
774345f9 | 1054 | notifiers_error: |
a38b2c49 MT |
1055 | if (with_irqfd) { |
1056 | assert(assign); | |
1057 | kvm_virtio_pci_vector_release(proxy, nvqs); | |
1058 | } | |
774345f9 | 1059 | |
54dd9321 MT |
1060 | assign_error: |
1061 | /* We get here on assignment failure. Recover by undoing for VQs 0 .. n. */ | |
7d37d351 | 1062 | assert(assign); |
54dd9321 | 1063 | while (--n >= 0) { |
89d62be9 | 1064 | virtio_pci_set_guest_notifier(d, n, !assign, with_irqfd); |
54dd9321 MT |
1065 | } |
1066 | return r; | |
1067 | } | |
1068 | ||
d2a0ccc6 | 1069 | static void virtio_pci_vmstate_change(DeviceState *d, bool running) |
25db9ebe | 1070 | { |
d2a0ccc6 | 1071 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
a3fc66d9 | 1072 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
25db9ebe SH |
1073 | |
1074 | if (running) { | |
68a27b20 MT |
1075 | /* Old QEMU versions did not set bus master enable on status write. |
1076 | * Detect DRIVER set and enable it. | |
1077 | */ | |
1078 | if ((proxy->flags & VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION) && | |
1079 | (vdev->status & VIRTIO_CONFIG_S_DRIVER) && | |
45363e46 | 1080 | !(proxy->pci_dev.config[PCI_COMMAND] & PCI_COMMAND_MASTER)) { |
68a27b20 MT |
1081 | pci_default_write_config(&proxy->pci_dev, PCI_COMMAND, |
1082 | proxy->pci_dev.config[PCI_COMMAND] | | |
1083 | PCI_COMMAND_MASTER, 1); | |
89c473fd | 1084 | } |
25db9ebe | 1085 | virtio_pci_start_ioeventfd(proxy); |
ade80dc8 | 1086 | } else { |
25db9ebe | 1087 | virtio_pci_stop_ioeventfd(proxy); |
ade80dc8 | 1088 | } |
ade80dc8 MT |
1089 | } |
1090 | ||
60653b28 | 1091 | #ifdef CONFIG_VIRTFS |
fc079951 | 1092 | static void virtio_9p_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) |
60653b28 | 1093 | { |
234a336f FK |
1094 | V9fsPCIState *dev = VIRTIO_9P_PCI(vpci_dev); |
1095 | DeviceState *vdev = DEVICE(&dev->vdev); | |
60653b28 | 1096 | |
234a336f | 1097 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
fc079951 | 1098 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
60653b28 PB |
1099 | } |
1100 | ||
234a336f FK |
1101 | static Property virtio_9p_pci_properties[] = { |
1102 | DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, | |
1103 | VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), | |
60653b28 | 1104 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2), |
60653b28 PB |
1105 | DEFINE_PROP_END_OF_LIST(), |
1106 | }; | |
1107 | ||
234a336f | 1108 | static void virtio_9p_pci_class_init(ObjectClass *klass, void *data) |
60653b28 PB |
1109 | { |
1110 | DeviceClass *dc = DEVICE_CLASS(klass); | |
234a336f FK |
1111 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); |
1112 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
60653b28 | 1113 | |
fc079951 | 1114 | k->realize = virtio_9p_pci_realize; |
234a336f FK |
1115 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; |
1116 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_9P; | |
1117 | pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; | |
1118 | pcidev_k->class_id = 0x2; | |
125ee0ed | 1119 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
234a336f | 1120 | dc->props = virtio_9p_pci_properties; |
60653b28 PB |
1121 | } |
1122 | ||
234a336f FK |
1123 | static void virtio_9p_pci_instance_init(Object *obj) |
1124 | { | |
1125 | V9fsPCIState *dev = VIRTIO_9P_PCI(obj); | |
c8075caf GA |
1126 | |
1127 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
1128 | TYPE_VIRTIO_9P); | |
234a336f FK |
1129 | } |
1130 | ||
1131 | static const TypeInfo virtio_9p_pci_info = { | |
1132 | .name = TYPE_VIRTIO_9P_PCI, | |
1133 | .parent = TYPE_VIRTIO_PCI, | |
1134 | .instance_size = sizeof(V9fsPCIState), | |
1135 | .instance_init = virtio_9p_pci_instance_init, | |
1136 | .class_init = virtio_9p_pci_class_init, | |
60653b28 | 1137 | }; |
234a336f | 1138 | #endif /* CONFIG_VIRTFS */ |
60653b28 | 1139 | |
085bccb7 FK |
1140 | /* |
1141 | * virtio-pci: This is the PCIDevice which has a virtio-pci-bus. | |
1142 | */ | |
1143 | ||
e0d686bf JW |
1144 | static int virtio_pci_query_nvectors(DeviceState *d) |
1145 | { | |
1146 | VirtIOPCIProxy *proxy = VIRTIO_PCI(d); | |
1147 | ||
1148 | return proxy->nvectors; | |
1149 | } | |
1150 | ||
8607f5c3 JW |
1151 | static AddressSpace *virtio_pci_get_dma_as(DeviceState *d) |
1152 | { | |
1153 | VirtIOPCIProxy *proxy = VIRTIO_PCI(d); | |
1154 | PCIDevice *dev = &proxy->pci_dev; | |
1155 | ||
f0edf239 | 1156 | return pci_get_address_space(dev); |
8607f5c3 JW |
1157 | } |
1158 | ||
ada434cd | 1159 | static int virtio_pci_add_mem_cap(VirtIOPCIProxy *proxy, |
dfb8e184 MT |
1160 | struct virtio_pci_cap *cap) |
1161 | { | |
1162 | PCIDevice *dev = &proxy->pci_dev; | |
1163 | int offset; | |
1164 | ||
dfb8e184 MT |
1165 | offset = pci_add_capability(dev, PCI_CAP_ID_VNDR, 0, cap->cap_len); |
1166 | assert(offset > 0); | |
1167 | ||
1168 | assert(cap->cap_len >= sizeof *cap); | |
1169 | memcpy(dev->config + offset + PCI_CAP_FLAGS, &cap->cap_len, | |
1170 | cap->cap_len - PCI_CAP_FLAGS); | |
ada434cd MT |
1171 | |
1172 | return offset; | |
dfb8e184 MT |
1173 | } |
1174 | ||
dfb8e184 MT |
1175 | static uint64_t virtio_pci_common_read(void *opaque, hwaddr addr, |
1176 | unsigned size) | |
1177 | { | |
1178 | VirtIOPCIProxy *proxy = opaque; | |
1179 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); | |
1180 | uint32_t val = 0; | |
1181 | int i; | |
1182 | ||
1183 | switch (addr) { | |
1184 | case VIRTIO_PCI_COMMON_DFSELECT: | |
1185 | val = proxy->dfselect; | |
1186 | break; | |
1187 | case VIRTIO_PCI_COMMON_DF: | |
1188 | if (proxy->dfselect <= 1) { | |
9b706dbb MT |
1189 | VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev); |
1190 | ||
1191 | val = (vdev->host_features & ~vdc->legacy_features) >> | |
5f456073 | 1192 | (32 * proxy->dfselect); |
dfb8e184 MT |
1193 | } |
1194 | break; | |
1195 | case VIRTIO_PCI_COMMON_GFSELECT: | |
1196 | val = proxy->gfselect; | |
1197 | break; | |
1198 | case VIRTIO_PCI_COMMON_GF: | |
3750dabc | 1199 | if (proxy->gfselect < ARRAY_SIZE(proxy->guest_features)) { |
dfb8e184 MT |
1200 | val = proxy->guest_features[proxy->gfselect]; |
1201 | } | |
1202 | break; | |
1203 | case VIRTIO_PCI_COMMON_MSIX: | |
1204 | val = vdev->config_vector; | |
1205 | break; | |
1206 | case VIRTIO_PCI_COMMON_NUMQ: | |
1207 | for (i = 0; i < VIRTIO_QUEUE_MAX; ++i) { | |
1208 | if (virtio_queue_get_num(vdev, i)) { | |
1209 | val = i + 1; | |
1210 | } | |
1211 | } | |
1212 | break; | |
1213 | case VIRTIO_PCI_COMMON_STATUS: | |
1214 | val = vdev->status; | |
1215 | break; | |
1216 | case VIRTIO_PCI_COMMON_CFGGENERATION: | |
b8f05908 | 1217 | val = vdev->generation; |
dfb8e184 MT |
1218 | break; |
1219 | case VIRTIO_PCI_COMMON_Q_SELECT: | |
1220 | val = vdev->queue_sel; | |
1221 | break; | |
1222 | case VIRTIO_PCI_COMMON_Q_SIZE: | |
1223 | val = virtio_queue_get_num(vdev, vdev->queue_sel); | |
1224 | break; | |
1225 | case VIRTIO_PCI_COMMON_Q_MSIX: | |
1226 | val = virtio_queue_vector(vdev, vdev->queue_sel); | |
1227 | break; | |
1228 | case VIRTIO_PCI_COMMON_Q_ENABLE: | |
1229 | val = proxy->vqs[vdev->queue_sel].enabled; | |
1230 | break; | |
1231 | case VIRTIO_PCI_COMMON_Q_NOFF: | |
1232 | /* Simply map queues in order */ | |
1233 | val = vdev->queue_sel; | |
1234 | break; | |
1235 | case VIRTIO_PCI_COMMON_Q_DESCLO: | |
1236 | val = proxy->vqs[vdev->queue_sel].desc[0]; | |
1237 | break; | |
1238 | case VIRTIO_PCI_COMMON_Q_DESCHI: | |
1239 | val = proxy->vqs[vdev->queue_sel].desc[1]; | |
1240 | break; | |
1241 | case VIRTIO_PCI_COMMON_Q_AVAILLO: | |
1242 | val = proxy->vqs[vdev->queue_sel].avail[0]; | |
1243 | break; | |
1244 | case VIRTIO_PCI_COMMON_Q_AVAILHI: | |
1245 | val = proxy->vqs[vdev->queue_sel].avail[1]; | |
1246 | break; | |
1247 | case VIRTIO_PCI_COMMON_Q_USEDLO: | |
1248 | val = proxy->vqs[vdev->queue_sel].used[0]; | |
1249 | break; | |
1250 | case VIRTIO_PCI_COMMON_Q_USEDHI: | |
1251 | val = proxy->vqs[vdev->queue_sel].used[1]; | |
1252 | break; | |
1253 | default: | |
1254 | val = 0; | |
1255 | } | |
1256 | ||
1257 | return val; | |
1258 | } | |
1259 | ||
1260 | static void virtio_pci_common_write(void *opaque, hwaddr addr, | |
1261 | uint64_t val, unsigned size) | |
1262 | { | |
1263 | VirtIOPCIProxy *proxy = opaque; | |
1264 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); | |
1265 | ||
1266 | switch (addr) { | |
1267 | case VIRTIO_PCI_COMMON_DFSELECT: | |
1268 | proxy->dfselect = val; | |
1269 | break; | |
1270 | case VIRTIO_PCI_COMMON_GFSELECT: | |
1271 | proxy->gfselect = val; | |
1272 | break; | |
1273 | case VIRTIO_PCI_COMMON_GF: | |
3750dabc | 1274 | if (proxy->gfselect < ARRAY_SIZE(proxy->guest_features)) { |
dfb8e184 MT |
1275 | proxy->guest_features[proxy->gfselect] = val; |
1276 | virtio_set_features(vdev, | |
1277 | (((uint64_t)proxy->guest_features[1]) << 32) | | |
1278 | proxy->guest_features[0]); | |
1279 | } | |
1280 | break; | |
1281 | case VIRTIO_PCI_COMMON_MSIX: | |
1282 | msix_vector_unuse(&proxy->pci_dev, vdev->config_vector); | |
1283 | /* Make it possible for guest to discover an error took place. */ | |
1284 | if (msix_vector_use(&proxy->pci_dev, val) < 0) { | |
1285 | val = VIRTIO_NO_VECTOR; | |
1286 | } | |
1287 | vdev->config_vector = val; | |
1288 | break; | |
1289 | case VIRTIO_PCI_COMMON_STATUS: | |
1290 | if (!(val & VIRTIO_CONFIG_S_DRIVER_OK)) { | |
1291 | virtio_pci_stop_ioeventfd(proxy); | |
1292 | } | |
1293 | ||
1294 | virtio_set_status(vdev, val & 0xFF); | |
1295 | ||
1296 | if (val & VIRTIO_CONFIG_S_DRIVER_OK) { | |
1297 | virtio_pci_start_ioeventfd(proxy); | |
1298 | } | |
1299 | ||
1300 | if (vdev->status == 0) { | |
75fd6f13 | 1301 | virtio_pci_reset(DEVICE(proxy)); |
dfb8e184 MT |
1302 | } |
1303 | ||
1304 | break; | |
1305 | case VIRTIO_PCI_COMMON_Q_SELECT: | |
1306 | if (val < VIRTIO_QUEUE_MAX) { | |
1307 | vdev->queue_sel = val; | |
1308 | } | |
1309 | break; | |
1310 | case VIRTIO_PCI_COMMON_Q_SIZE: | |
1311 | proxy->vqs[vdev->queue_sel].num = val; | |
1312 | break; | |
1313 | case VIRTIO_PCI_COMMON_Q_MSIX: | |
1314 | msix_vector_unuse(&proxy->pci_dev, | |
1315 | virtio_queue_vector(vdev, vdev->queue_sel)); | |
1316 | /* Make it possible for guest to discover an error took place. */ | |
1317 | if (msix_vector_use(&proxy->pci_dev, val) < 0) { | |
1318 | val = VIRTIO_NO_VECTOR; | |
1319 | } | |
1320 | virtio_queue_set_vector(vdev, vdev->queue_sel, val); | |
1321 | break; | |
1322 | case VIRTIO_PCI_COMMON_Q_ENABLE: | |
dfb8e184 MT |
1323 | virtio_queue_set_num(vdev, vdev->queue_sel, |
1324 | proxy->vqs[vdev->queue_sel].num); | |
1325 | virtio_queue_set_rings(vdev, vdev->queue_sel, | |
1326 | ((uint64_t)proxy->vqs[vdev->queue_sel].desc[1]) << 32 | | |
1327 | proxy->vqs[vdev->queue_sel].desc[0], | |
1328 | ((uint64_t)proxy->vqs[vdev->queue_sel].avail[1]) << 32 | | |
1329 | proxy->vqs[vdev->queue_sel].avail[0], | |
1330 | ((uint64_t)proxy->vqs[vdev->queue_sel].used[1]) << 32 | | |
1331 | proxy->vqs[vdev->queue_sel].used[0]); | |
393f04d3 | 1332 | proxy->vqs[vdev->queue_sel].enabled = 1; |
dfb8e184 MT |
1333 | break; |
1334 | case VIRTIO_PCI_COMMON_Q_DESCLO: | |
1335 | proxy->vqs[vdev->queue_sel].desc[0] = val; | |
1336 | break; | |
1337 | case VIRTIO_PCI_COMMON_Q_DESCHI: | |
1338 | proxy->vqs[vdev->queue_sel].desc[1] = val; | |
1339 | break; | |
1340 | case VIRTIO_PCI_COMMON_Q_AVAILLO: | |
1341 | proxy->vqs[vdev->queue_sel].avail[0] = val; | |
1342 | break; | |
1343 | case VIRTIO_PCI_COMMON_Q_AVAILHI: | |
1344 | proxy->vqs[vdev->queue_sel].avail[1] = val; | |
1345 | break; | |
1346 | case VIRTIO_PCI_COMMON_Q_USEDLO: | |
1347 | proxy->vqs[vdev->queue_sel].used[0] = val; | |
1348 | break; | |
1349 | case VIRTIO_PCI_COMMON_Q_USEDHI: | |
1350 | proxy->vqs[vdev->queue_sel].used[1] = val; | |
1351 | break; | |
1352 | default: | |
1353 | break; | |
1354 | } | |
1355 | } | |
1356 | ||
1357 | ||
1358 | static uint64_t virtio_pci_notify_read(void *opaque, hwaddr addr, | |
1359 | unsigned size) | |
1360 | { | |
1361 | return 0; | |
1362 | } | |
1363 | ||
1364 | static void virtio_pci_notify_write(void *opaque, hwaddr addr, | |
1365 | uint64_t val, unsigned size) | |
1366 | { | |
1367 | VirtIODevice *vdev = opaque; | |
d9997d89 MA |
1368 | VirtIOPCIProxy *proxy = VIRTIO_PCI(DEVICE(vdev)->parent_bus->parent); |
1369 | unsigned queue = addr / virtio_pci_queue_mem_mult(proxy); | |
dfb8e184 MT |
1370 | |
1371 | if (queue < VIRTIO_QUEUE_MAX) { | |
1372 | virtio_queue_notify(vdev, queue); | |
1373 | } | |
1374 | } | |
1375 | ||
9824d2a3 JW |
1376 | static void virtio_pci_notify_write_pio(void *opaque, hwaddr addr, |
1377 | uint64_t val, unsigned size) | |
1378 | { | |
1379 | VirtIODevice *vdev = opaque; | |
1380 | unsigned queue = val; | |
1381 | ||
1382 | if (queue < VIRTIO_QUEUE_MAX) { | |
1383 | virtio_queue_notify(vdev, queue); | |
1384 | } | |
1385 | } | |
1386 | ||
dfb8e184 MT |
1387 | static uint64_t virtio_pci_isr_read(void *opaque, hwaddr addr, |
1388 | unsigned size) | |
1389 | { | |
1390 | VirtIOPCIProxy *proxy = opaque; | |
1391 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); | |
0687c37c | 1392 | uint64_t val = atomic_xchg(&vdev->isr, 0); |
dfb8e184 MT |
1393 | pci_irq_deassert(&proxy->pci_dev); |
1394 | ||
1395 | return val; | |
1396 | } | |
1397 | ||
1398 | static void virtio_pci_isr_write(void *opaque, hwaddr addr, | |
1399 | uint64_t val, unsigned size) | |
1400 | { | |
1401 | } | |
1402 | ||
1403 | static uint64_t virtio_pci_device_read(void *opaque, hwaddr addr, | |
1404 | unsigned size) | |
1405 | { | |
1406 | VirtIODevice *vdev = opaque; | |
1407 | uint64_t val = 0; | |
1408 | ||
1409 | switch (size) { | |
1410 | case 1: | |
54c720d4 | 1411 | val = virtio_config_modern_readb(vdev, addr); |
dfb8e184 MT |
1412 | break; |
1413 | case 2: | |
54c720d4 | 1414 | val = virtio_config_modern_readw(vdev, addr); |
dfb8e184 MT |
1415 | break; |
1416 | case 4: | |
54c720d4 | 1417 | val = virtio_config_modern_readl(vdev, addr); |
dfb8e184 MT |
1418 | break; |
1419 | } | |
1420 | return val; | |
1421 | } | |
1422 | ||
1423 | static void virtio_pci_device_write(void *opaque, hwaddr addr, | |
1424 | uint64_t val, unsigned size) | |
1425 | { | |
1426 | VirtIODevice *vdev = opaque; | |
1427 | switch (size) { | |
1428 | case 1: | |
54c720d4 | 1429 | virtio_config_modern_writeb(vdev, addr, val); |
dfb8e184 MT |
1430 | break; |
1431 | case 2: | |
54c720d4 | 1432 | virtio_config_modern_writew(vdev, addr, val); |
dfb8e184 MT |
1433 | break; |
1434 | case 4: | |
54c720d4 | 1435 | virtio_config_modern_writel(vdev, addr, val); |
dfb8e184 MT |
1436 | break; |
1437 | } | |
1438 | } | |
1439 | ||
1141ce21 GH |
1440 | static void virtio_pci_modern_regions_init(VirtIOPCIProxy *proxy) |
1441 | { | |
1442 | static const MemoryRegionOps common_ops = { | |
1443 | .read = virtio_pci_common_read, | |
1444 | .write = virtio_pci_common_write, | |
1445 | .impl = { | |
1446 | .min_access_size = 1, | |
1447 | .max_access_size = 4, | |
1448 | }, | |
1449 | .endianness = DEVICE_LITTLE_ENDIAN, | |
1450 | }; | |
1451 | static const MemoryRegionOps isr_ops = { | |
1452 | .read = virtio_pci_isr_read, | |
1453 | .write = virtio_pci_isr_write, | |
1454 | .impl = { | |
1455 | .min_access_size = 1, | |
1456 | .max_access_size = 4, | |
1457 | }, | |
1458 | .endianness = DEVICE_LITTLE_ENDIAN, | |
1459 | }; | |
1460 | static const MemoryRegionOps device_ops = { | |
1461 | .read = virtio_pci_device_read, | |
1462 | .write = virtio_pci_device_write, | |
1463 | .impl = { | |
1464 | .min_access_size = 1, | |
1465 | .max_access_size = 4, | |
1466 | }, | |
1467 | .endianness = DEVICE_LITTLE_ENDIAN, | |
1468 | }; | |
1469 | static const MemoryRegionOps notify_ops = { | |
1470 | .read = virtio_pci_notify_read, | |
1471 | .write = virtio_pci_notify_write, | |
1472 | .impl = { | |
1473 | .min_access_size = 1, | |
1474 | .max_access_size = 4, | |
1475 | }, | |
1476 | .endianness = DEVICE_LITTLE_ENDIAN, | |
1477 | }; | |
9824d2a3 JW |
1478 | static const MemoryRegionOps notify_pio_ops = { |
1479 | .read = virtio_pci_notify_read, | |
1480 | .write = virtio_pci_notify_write_pio, | |
1481 | .impl = { | |
1482 | .min_access_size = 1, | |
1483 | .max_access_size = 4, | |
1484 | }, | |
1485 | .endianness = DEVICE_LITTLE_ENDIAN, | |
1486 | }; | |
1487 | ||
1141ce21 GH |
1488 | |
1489 | memory_region_init_io(&proxy->common.mr, OBJECT(proxy), | |
1490 | &common_ops, | |
1491 | proxy, | |
b6ce27a5 GH |
1492 | "virtio-pci-common", |
1493 | proxy->common.size); | |
a3cc2e81 | 1494 | |
1141ce21 GH |
1495 | memory_region_init_io(&proxy->isr.mr, OBJECT(proxy), |
1496 | &isr_ops, | |
1497 | proxy, | |
b6ce27a5 GH |
1498 | "virtio-pci-isr", |
1499 | proxy->isr.size); | |
a3cc2e81 | 1500 | |
1141ce21 GH |
1501 | memory_region_init_io(&proxy->device.mr, OBJECT(proxy), |
1502 | &device_ops, | |
1503 | virtio_bus_get_device(&proxy->bus), | |
b6ce27a5 GH |
1504 | "virtio-pci-device", |
1505 | proxy->device.size); | |
a3cc2e81 | 1506 | |
1141ce21 GH |
1507 | memory_region_init_io(&proxy->notify.mr, OBJECT(proxy), |
1508 | ¬ify_ops, | |
1509 | virtio_bus_get_device(&proxy->bus), | |
1510 | "virtio-pci-notify", | |
b6ce27a5 | 1511 | proxy->notify.size); |
9824d2a3 JW |
1512 | |
1513 | memory_region_init_io(&proxy->notify_pio.mr, OBJECT(proxy), | |
1514 | ¬ify_pio_ops, | |
1515 | virtio_bus_get_device(&proxy->bus), | |
1516 | "virtio-pci-notify-pio", | |
e3aab6c7 | 1517 | proxy->notify_pio.size); |
a3cc2e81 GH |
1518 | } |
1519 | ||
1520 | static void virtio_pci_modern_region_map(VirtIOPCIProxy *proxy, | |
54790d71 | 1521 | VirtIOPCIRegion *region, |
9824d2a3 JW |
1522 | struct virtio_pci_cap *cap, |
1523 | MemoryRegion *mr, | |
1524 | uint8_t bar) | |
a3cc2e81 | 1525 | { |
9824d2a3 | 1526 | memory_region_add_subregion(mr, region->offset, ®ion->mr); |
54790d71 | 1527 | |
fc004905 | 1528 | cap->cfg_type = region->type; |
9824d2a3 | 1529 | cap->bar = bar; |
54790d71 | 1530 | cap->offset = cpu_to_le32(region->offset); |
b6ce27a5 | 1531 | cap->length = cpu_to_le32(region->size); |
54790d71 | 1532 | virtio_pci_add_mem_cap(proxy, cap); |
9824d2a3 JW |
1533 | |
1534 | } | |
1535 | ||
1536 | static void virtio_pci_modern_mem_region_map(VirtIOPCIProxy *proxy, | |
1537 | VirtIOPCIRegion *region, | |
1538 | struct virtio_pci_cap *cap) | |
1539 | { | |
1540 | virtio_pci_modern_region_map(proxy, region, cap, | |
7a25126d | 1541 | &proxy->modern_bar, proxy->modern_mem_bar_idx); |
1141ce21 | 1542 | } |
dfb8e184 | 1543 | |
9824d2a3 JW |
1544 | static void virtio_pci_modern_io_region_map(VirtIOPCIProxy *proxy, |
1545 | VirtIOPCIRegion *region, | |
1546 | struct virtio_pci_cap *cap) | |
1547 | { | |
1548 | virtio_pci_modern_region_map(proxy, region, cap, | |
7a25126d | 1549 | &proxy->io_bar, proxy->modern_io_bar_idx); |
9824d2a3 JW |
1550 | } |
1551 | ||
1552 | static void virtio_pci_modern_mem_region_unmap(VirtIOPCIProxy *proxy, | |
1553 | VirtIOPCIRegion *region) | |
27462695 MT |
1554 | { |
1555 | memory_region_del_subregion(&proxy->modern_bar, | |
1556 | ®ion->mr); | |
1557 | } | |
1558 | ||
9824d2a3 JW |
1559 | static void virtio_pci_modern_io_region_unmap(VirtIOPCIProxy *proxy, |
1560 | VirtIOPCIRegion *region) | |
1561 | { | |
1562 | memory_region_del_subregion(&proxy->io_bar, | |
1563 | ®ion->mr); | |
1564 | } | |
1565 | ||
d1b4259f MC |
1566 | static void virtio_pci_pre_plugged(DeviceState *d, Error **errp) |
1567 | { | |
1568 | VirtIOPCIProxy *proxy = VIRTIO_PCI(d); | |
1569 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); | |
1570 | ||
1571 | if (virtio_pci_modern(proxy)) { | |
1572 | virtio_add_feature(&vdev->host_features, VIRTIO_F_VERSION_1); | |
1573 | } | |
1574 | ||
1575 | virtio_add_feature(&vdev->host_features, VIRTIO_F_BAD_FEATURE); | |
1576 | } | |
1577 | ||
085bccb7 | 1578 | /* This is called by virtio-bus just after the device is plugged. */ |
e8398045 | 1579 | static void virtio_pci_device_plugged(DeviceState *d, Error **errp) |
085bccb7 FK |
1580 | { |
1581 | VirtIOPCIProxy *proxy = VIRTIO_PCI(d); | |
1582 | VirtioBusState *bus = &proxy->bus; | |
9a4c0e22 | 1583 | bool legacy = virtio_pci_legacy(proxy); |
d1b4259f | 1584 | bool modern; |
9824d2a3 | 1585 | bool modern_pio = proxy->flags & VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY; |
085bccb7 FK |
1586 | uint8_t *config; |
1587 | uint32_t size; | |
6b8f1020 | 1588 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
085bccb7 | 1589 | |
d1b4259f MC |
1590 | /* |
1591 | * Virtio capabilities present without | |
1592 | * VIRTIO_F_VERSION_1 confuses guests | |
1593 | */ | |
66d1c4c1 MC |
1594 | if (!proxy->ignore_backend_features && |
1595 | !virtio_has_feature(vdev->host_features, VIRTIO_F_VERSION_1)) { | |
d1b4259f MC |
1596 | virtio_pci_disable_modern(proxy); |
1597 | ||
1598 | if (!legacy) { | |
1599 | error_setg(errp, "Device doesn't support modern mode, and legacy" | |
1600 | " mode is disabled"); | |
1601 | error_append_hint(errp, "Set disable-legacy to off\n"); | |
1602 | ||
1603 | return; | |
1604 | } | |
1605 | } | |
1606 | ||
1607 | modern = virtio_pci_modern(proxy); | |
1608 | ||
085bccb7 FK |
1609 | config = proxy->pci_dev.config; |
1610 | if (proxy->class_code) { | |
1611 | pci_config_set_class(config, proxy->class_code); | |
1612 | } | |
e266d421 GH |
1613 | |
1614 | if (legacy) { | |
8607f5c3 JW |
1615 | if (virtio_host_has_feature(vdev, VIRTIO_F_IOMMU_PLATFORM)) { |
1616 | error_setg(errp, "VIRTIO_F_IOMMU_PLATFORM was supported by" | |
1617 | "neither legacy nor transitional device."); | |
1618 | return ; | |
1619 | } | |
e266d421 GH |
1620 | /* legacy and transitional */ |
1621 | pci_set_word(config + PCI_SUBSYSTEM_VENDOR_ID, | |
1622 | pci_get_word(config + PCI_VENDOR_ID)); | |
1623 | pci_set_word(config + PCI_SUBSYSTEM_ID, virtio_bus_get_vdev_id(bus)); | |
1624 | } else { | |
1625 | /* pure virtio-1.0 */ | |
1626 | pci_set_word(config + PCI_VENDOR_ID, | |
1627 | PCI_VENDOR_ID_REDHAT_QUMRANET); | |
1628 | pci_set_word(config + PCI_DEVICE_ID, | |
1629 | 0x1040 + virtio_bus_get_vdev_id(bus)); | |
1630 | pci_config_set_revision(config, 1); | |
1631 | } | |
085bccb7 FK |
1632 | config[PCI_INTERRUPT_PIN] = 1; |
1633 | ||
dfb8e184 | 1634 | |
e266d421 | 1635 | if (modern) { |
cc52ea90 GH |
1636 | struct virtio_pci_cap cap = { |
1637 | .cap_len = sizeof cap, | |
dfb8e184 MT |
1638 | }; |
1639 | struct virtio_pci_notify_cap notify = { | |
dfb8e184 | 1640 | .cap.cap_len = sizeof notify, |
dfb8e184 | 1641 | .notify_off_multiplier = |
d9997d89 | 1642 | cpu_to_le32(virtio_pci_queue_mem_mult(proxy)), |
dfb8e184 | 1643 | }; |
ada434cd MT |
1644 | struct virtio_pci_cfg_cap cfg = { |
1645 | .cap.cap_len = sizeof cfg, | |
1646 | .cap.cfg_type = VIRTIO_PCI_CAP_PCI_CFG, | |
1647 | }; | |
9824d2a3 JW |
1648 | struct virtio_pci_notify_cap notify_pio = { |
1649 | .cap.cap_len = sizeof notify, | |
1650 | .notify_off_multiplier = cpu_to_le32(0x0), | |
1651 | }; | |
dfb8e184 | 1652 | |
9824d2a3 | 1653 | struct virtio_pci_cfg_cap *cfg_mask; |
dfb8e184 | 1654 | |
1141ce21 | 1655 | virtio_pci_modern_regions_init(proxy); |
9824d2a3 JW |
1656 | |
1657 | virtio_pci_modern_mem_region_map(proxy, &proxy->common, &cap); | |
1658 | virtio_pci_modern_mem_region_map(proxy, &proxy->isr, &cap); | |
1659 | virtio_pci_modern_mem_region_map(proxy, &proxy->device, &cap); | |
1660 | virtio_pci_modern_mem_region_map(proxy, &proxy->notify, ¬ify.cap); | |
1661 | ||
1662 | if (modern_pio) { | |
1663 | memory_region_init(&proxy->io_bar, OBJECT(proxy), | |
1664 | "virtio-pci-io", 0x4); | |
1665 | ||
7a25126d | 1666 | pci_register_bar(&proxy->pci_dev, proxy->modern_io_bar_idx, |
9824d2a3 JW |
1667 | PCI_BASE_ADDRESS_SPACE_IO, &proxy->io_bar); |
1668 | ||
1669 | virtio_pci_modern_io_region_map(proxy, &proxy->notify_pio, | |
1670 | ¬ify_pio.cap); | |
1671 | } | |
ada434cd | 1672 | |
7a25126d | 1673 | pci_register_bar(&proxy->pci_dev, proxy->modern_mem_bar_idx, |
4e93a68e GH |
1674 | PCI_BASE_ADDRESS_SPACE_MEMORY | |
1675 | PCI_BASE_ADDRESS_MEM_PREFETCH | | |
1676 | PCI_BASE_ADDRESS_MEM_TYPE_64, | |
dfb8e184 | 1677 | &proxy->modern_bar); |
ada434cd MT |
1678 | |
1679 | proxy->config_cap = virtio_pci_add_mem_cap(proxy, &cfg.cap); | |
1680 | cfg_mask = (void *)(proxy->pci_dev.wmask + proxy->config_cap); | |
1681 | pci_set_byte(&cfg_mask->cap.bar, ~0x0); | |
1682 | pci_set_long((uint8_t *)&cfg_mask->cap.offset, ~0x0); | |
1683 | pci_set_long((uint8_t *)&cfg_mask->cap.length, ~0x0); | |
1684 | pci_set_long(cfg_mask->pci_cfg_data, ~0x0); | |
dfb8e184 MT |
1685 | } |
1686 | ||
0d583647 RH |
1687 | if (proxy->nvectors) { |
1688 | int err = msix_init_exclusive_bar(&proxy->pci_dev, proxy->nvectors, | |
ee640c62 | 1689 | proxy->msix_bar_idx, NULL); |
0d583647 | 1690 | if (err) { |
ee640c62 | 1691 | /* Notice when a system that supports MSIx can't initialize it */ |
0d583647 RH |
1692 | if (err != -ENOTSUP) { |
1693 | error_report("unable to init msix vectors to %" PRIu32, | |
1694 | proxy->nvectors); | |
1695 | } | |
1696 | proxy->nvectors = 0; | |
1697 | } | |
085bccb7 FK |
1698 | } |
1699 | ||
1700 | proxy->pci_dev.config_write = virtio_write_config; | |
ada434cd | 1701 | proxy->pci_dev.config_read = virtio_read_config; |
085bccb7 | 1702 | |
e266d421 GH |
1703 | if (legacy) { |
1704 | size = VIRTIO_PCI_REGION_SIZE(&proxy->pci_dev) | |
1705 | + virtio_bus_get_vdev_config_len(bus); | |
1d0148fe | 1706 | size = pow2ceil(size); |
085bccb7 | 1707 | |
e266d421 GH |
1708 | memory_region_init_io(&proxy->bar, OBJECT(proxy), |
1709 | &virtio_pci_config_ops, | |
1710 | proxy, "virtio-pci", size); | |
dfb8e184 | 1711 | |
7a25126d | 1712 | pci_register_bar(&proxy->pci_dev, proxy->legacy_io_bar_idx, |
23c5e397 | 1713 | PCI_BASE_ADDRESS_SPACE_IO, &proxy->bar); |
e266d421 | 1714 | } |
085bccb7 FK |
1715 | } |
1716 | ||
06a13073 PB |
1717 | static void virtio_pci_device_unplugged(DeviceState *d) |
1718 | { | |
06a13073 | 1719 | VirtIOPCIProxy *proxy = VIRTIO_PCI(d); |
9a4c0e22 | 1720 | bool modern = virtio_pci_modern(proxy); |
9824d2a3 | 1721 | bool modern_pio = proxy->flags & VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY; |
06a13073 PB |
1722 | |
1723 | virtio_pci_stop_ioeventfd(proxy); | |
27462695 MT |
1724 | |
1725 | if (modern) { | |
9824d2a3 JW |
1726 | virtio_pci_modern_mem_region_unmap(proxy, &proxy->common); |
1727 | virtio_pci_modern_mem_region_unmap(proxy, &proxy->isr); | |
1728 | virtio_pci_modern_mem_region_unmap(proxy, &proxy->device); | |
1729 | virtio_pci_modern_mem_region_unmap(proxy, &proxy->notify); | |
1730 | if (modern_pio) { | |
1731 | virtio_pci_modern_io_region_unmap(proxy, &proxy->notify_pio); | |
1732 | } | |
27462695 | 1733 | } |
06a13073 PB |
1734 | } |
1735 | ||
fc079951 | 1736 | static void virtio_pci_realize(PCIDevice *pci_dev, Error **errp) |
085bccb7 | 1737 | { |
b6ce27a5 | 1738 | VirtIOPCIProxy *proxy = VIRTIO_PCI(pci_dev); |
085bccb7 | 1739 | VirtioPCIClass *k = VIRTIO_PCI_GET_CLASS(pci_dev); |
9a4c0e22 MA |
1740 | bool pcie_port = pci_bus_is_express(pci_dev->bus) && |
1741 | !pci_bus_is_root(pci_dev->bus); | |
fc079951 | 1742 | |
ca2b413c PB |
1743 | if (!kvm_has_many_ioeventfds()) { |
1744 | proxy->flags &= ~VIRTIO_PCI_FLAG_USE_IOEVENTFD; | |
1745 | } | |
1746 | ||
b6ce27a5 GH |
1747 | /* |
1748 | * virtio pci bar layout used by default. | |
1749 | * subclasses can re-arrange things if needed. | |
1750 | * | |
1751 | * region 0 -- virtio legacy io bar | |
1752 | * region 1 -- msi-x bar | |
1753 | * region 4+5 -- virtio modern memory (64bit) bar | |
1754 | * | |
1755 | */ | |
7a25126d CF |
1756 | proxy->legacy_io_bar_idx = 0; |
1757 | proxy->msix_bar_idx = 1; | |
1758 | proxy->modern_io_bar_idx = 2; | |
1759 | proxy->modern_mem_bar_idx = 4; | |
b6ce27a5 GH |
1760 | |
1761 | proxy->common.offset = 0x0; | |
1762 | proxy->common.size = 0x1000; | |
1763 | proxy->common.type = VIRTIO_PCI_CAP_COMMON_CFG; | |
1764 | ||
1765 | proxy->isr.offset = 0x1000; | |
1766 | proxy->isr.size = 0x1000; | |
1767 | proxy->isr.type = VIRTIO_PCI_CAP_ISR_CFG; | |
1768 | ||
1769 | proxy->device.offset = 0x2000; | |
1770 | proxy->device.size = 0x1000; | |
1771 | proxy->device.type = VIRTIO_PCI_CAP_DEVICE_CFG; | |
1772 | ||
1773 | proxy->notify.offset = 0x3000; | |
d9997d89 | 1774 | proxy->notify.size = virtio_pci_queue_mem_mult(proxy) * VIRTIO_QUEUE_MAX; |
b6ce27a5 GH |
1775 | proxy->notify.type = VIRTIO_PCI_CAP_NOTIFY_CFG; |
1776 | ||
9824d2a3 JW |
1777 | proxy->notify_pio.offset = 0x0; |
1778 | proxy->notify_pio.size = 0x4; | |
1779 | proxy->notify_pio.type = VIRTIO_PCI_CAP_NOTIFY_CFG; | |
1780 | ||
b6ce27a5 GH |
1781 | /* subclasses can enforce modern, so do this unconditionally */ |
1782 | memory_region_init(&proxy->modern_bar, OBJECT(proxy), "virtio-pci", | |
d9997d89 MA |
1783 | /* PCI BAR regions must be powers of 2 */ |
1784 | pow2ceil(proxy->notify.offset + proxy->notify.size)); | |
b6ce27a5 | 1785 | |
ada434cd MT |
1786 | memory_region_init_alias(&proxy->modern_cfg, |
1787 | OBJECT(proxy), | |
1788 | "virtio-pci-cfg", | |
1789 | &proxy->modern_bar, | |
1790 | 0, | |
1791 | memory_region_size(&proxy->modern_bar)); | |
1792 | ||
1793 | address_space_init(&proxy->modern_as, &proxy->modern_cfg, "virtio-pci-cfg-as"); | |
1794 | ||
9a4c0e22 MA |
1795 | if (proxy->disable_legacy == ON_OFF_AUTO_AUTO) { |
1796 | proxy->disable_legacy = pcie_port ? ON_OFF_AUTO_ON : ON_OFF_AUTO_OFF; | |
1797 | } | |
1798 | ||
71d19fc5 | 1799 | if (!virtio_pci_modern(proxy) && !virtio_pci_legacy(proxy)) { |
3eff3769 GK |
1800 | error_setg(errp, "device cannot work as neither modern nor legacy mode" |
1801 | " is enabled"); | |
1802 | error_append_hint(errp, "Set either disable-modern or disable-legacy" | |
1803 | " to off\n"); | |
1804 | return; | |
1805 | } | |
1806 | ||
9a4c0e22 | 1807 | if (pcie_port && pci_is_express(pci_dev)) { |
1811e64c MA |
1808 | int pos; |
1809 | ||
1811e64c MA |
1810 | pos = pcie_endpoint_cap_init(pci_dev, 0); |
1811 | assert(pos > 0); | |
1812 | ||
1813 | pos = pci_add_capability(pci_dev, PCI_CAP_ID_PM, 0, PCI_PM_SIZEOF); | |
1814 | assert(pos > 0); | |
1815 | ||
1816 | /* | |
1817 | * Indicates that this function complies with revision 1.2 of the | |
1818 | * PCI Power Management Interface Specification. | |
1819 | */ | |
1820 | pci_set_word(pci_dev->config + pos + PCI_PM_PMC, 0x3); | |
615c4ed2 JW |
1821 | |
1822 | if (proxy->flags & VIRTIO_PCI_FLAG_ATS) { | |
1823 | pcie_ats_init(pci_dev, 256); | |
1824 | } | |
1825 | ||
0560b0e9 SL |
1826 | } else { |
1827 | /* | |
1828 | * make future invocations of pci_is_express() return false | |
1829 | * and pci_config_size() return PCI_CONFIG_SPACE_SIZE. | |
1830 | */ | |
1831 | pci_dev->cap_present &= ~QEMU_PCI_CAP_EXPRESS; | |
1811e64c MA |
1832 | } |
1833 | ||
b6ce27a5 | 1834 | virtio_pci_bus_new(&proxy->bus, sizeof(proxy->bus), proxy); |
fc079951 | 1835 | if (k->realize) { |
b6ce27a5 | 1836 | k->realize(proxy, errp); |
085bccb7 | 1837 | } |
085bccb7 FK |
1838 | } |
1839 | ||
1840 | static void virtio_pci_exit(PCIDevice *pci_dev) | |
1841 | { | |
ada434cd MT |
1842 | VirtIOPCIProxy *proxy = VIRTIO_PCI(pci_dev); |
1843 | ||
8b81bb3b | 1844 | msix_uninit_exclusive_bar(pci_dev); |
ada434cd | 1845 | address_space_destroy(&proxy->modern_as); |
085bccb7 FK |
1846 | } |
1847 | ||
59ccd20a | 1848 | static void virtio_pci_reset(DeviceState *qdev) |
085bccb7 FK |
1849 | { |
1850 | VirtIOPCIProxy *proxy = VIRTIO_PCI(qdev); | |
1851 | VirtioBusState *bus = VIRTIO_BUS(&proxy->bus); | |
393f04d3 JW |
1852 | int i; |
1853 | ||
085bccb7 FK |
1854 | virtio_pci_stop_ioeventfd(proxy); |
1855 | virtio_bus_reset(bus); | |
1856 | msix_unuse_all_vectors(&proxy->pci_dev); | |
393f04d3 JW |
1857 | |
1858 | for (i = 0; i < VIRTIO_QUEUE_MAX; i++) { | |
1859 | proxy->vqs[i].enabled = 0; | |
1860 | } | |
085bccb7 FK |
1861 | } |
1862 | ||
85d1277e | 1863 | static Property virtio_pci_properties[] = { |
68a27b20 MT |
1864 | DEFINE_PROP_BIT("virtio-pci-bus-master-bug-migration", VirtIOPCIProxy, flags, |
1865 | VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION_BIT, false), | |
9a4c0e22 MA |
1866 | DEFINE_PROP_ON_OFF_AUTO("disable-legacy", VirtIOPCIProxy, disable_legacy, |
1867 | ON_OFF_AUTO_AUTO), | |
1868 | DEFINE_PROP_BOOL("disable-modern", VirtIOPCIProxy, disable_modern, false), | |
a6df8adf JW |
1869 | DEFINE_PROP_BIT("migrate-extra", VirtIOPCIProxy, flags, |
1870 | VIRTIO_PCI_FLAG_MIGRATE_EXTRA_BIT, true), | |
9824d2a3 JW |
1871 | DEFINE_PROP_BIT("modern-pio-notify", VirtIOPCIProxy, flags, |
1872 | VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY_BIT, false), | |
1811e64c MA |
1873 | DEFINE_PROP_BIT("x-disable-pcie", VirtIOPCIProxy, flags, |
1874 | VIRTIO_PCI_FLAG_DISABLE_PCIE_BIT, false), | |
d9997d89 MA |
1875 | DEFINE_PROP_BIT("page-per-vq", VirtIOPCIProxy, flags, |
1876 | VIRTIO_PCI_FLAG_PAGE_PER_VQ_BIT, false), | |
66d1c4c1 MC |
1877 | DEFINE_PROP_BOOL("x-ignore-backend-features", VirtIOPCIProxy, |
1878 | ignore_backend_features, false), | |
615c4ed2 JW |
1879 | DEFINE_PROP_BIT("ats", VirtIOPCIProxy, flags, |
1880 | VIRTIO_PCI_FLAG_ATS_BIT, false), | |
85d1277e ML |
1881 | DEFINE_PROP_END_OF_LIST(), |
1882 | }; | |
1883 | ||
0560b0e9 SL |
1884 | static void virtio_pci_dc_realize(DeviceState *qdev, Error **errp) |
1885 | { | |
1886 | VirtioPCIClass *vpciklass = VIRTIO_PCI_GET_CLASS(qdev); | |
1887 | VirtIOPCIProxy *proxy = VIRTIO_PCI(qdev); | |
1888 | PCIDevice *pci_dev = &proxy->pci_dev; | |
1889 | ||
1890 | if (!(proxy->flags & VIRTIO_PCI_FLAG_DISABLE_PCIE) && | |
9a4c0e22 | 1891 | virtio_pci_modern(proxy)) { |
0560b0e9 SL |
1892 | pci_dev->cap_present |= QEMU_PCI_CAP_EXPRESS; |
1893 | } | |
1894 | ||
1895 | vpciklass->parent_dc_realize(qdev, errp); | |
1896 | } | |
1897 | ||
085bccb7 FK |
1898 | static void virtio_pci_class_init(ObjectClass *klass, void *data) |
1899 | { | |
1900 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1901 | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); | |
0560b0e9 | 1902 | VirtioPCIClass *vpciklass = VIRTIO_PCI_CLASS(klass); |
085bccb7 | 1903 | |
85d1277e | 1904 | dc->props = virtio_pci_properties; |
fc079951 | 1905 | k->realize = virtio_pci_realize; |
085bccb7 FK |
1906 | k->exit = virtio_pci_exit; |
1907 | k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
1908 | k->revision = VIRTIO_PCI_ABI_VERSION; | |
1909 | k->class_id = PCI_CLASS_OTHERS; | |
0560b0e9 SL |
1910 | vpciklass->parent_dc_realize = dc->realize; |
1911 | dc->realize = virtio_pci_dc_realize; | |
59ccd20a | 1912 | dc->reset = virtio_pci_reset; |
085bccb7 FK |
1913 | } |
1914 | ||
1915 | static const TypeInfo virtio_pci_info = { | |
1916 | .name = TYPE_VIRTIO_PCI, | |
1917 | .parent = TYPE_PCI_DEVICE, | |
1918 | .instance_size = sizeof(VirtIOPCIProxy), | |
1919 | .class_init = virtio_pci_class_init, | |
1920 | .class_size = sizeof(VirtioPCIClass), | |
1921 | .abstract = true, | |
1922 | }; | |
1923 | ||
653ced07 FK |
1924 | /* virtio-blk-pci */ |
1925 | ||
1926 | static Property virtio_blk_pci_properties[] = { | |
c7bcc85d | 1927 | DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0), |
653ced07 FK |
1928 | DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, |
1929 | VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), | |
1930 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2), | |
653ced07 FK |
1931 | DEFINE_PROP_END_OF_LIST(), |
1932 | }; | |
1933 | ||
fc079951 | 1934 | static void virtio_blk_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) |
653ced07 FK |
1935 | { |
1936 | VirtIOBlkPCI *dev = VIRTIO_BLK_PCI(vpci_dev); | |
1937 | DeviceState *vdev = DEVICE(&dev->vdev); | |
fc079951 | 1938 | |
653ced07 | 1939 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
fc079951 | 1940 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
653ced07 FK |
1941 | } |
1942 | ||
1943 | static void virtio_blk_pci_class_init(ObjectClass *klass, void *data) | |
1944 | { | |
1945 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1946 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
1947 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
1948 | ||
125ee0ed | 1949 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
653ced07 | 1950 | dc->props = virtio_blk_pci_properties; |
fc079951 | 1951 | k->realize = virtio_blk_pci_realize; |
653ced07 FK |
1952 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; |
1953 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_BLOCK; | |
1954 | pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; | |
1955 | pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI; | |
1956 | } | |
1957 | ||
1958 | static void virtio_blk_pci_instance_init(Object *obj) | |
1959 | { | |
1960 | VirtIOBlkPCI *dev = VIRTIO_BLK_PCI(obj); | |
c8075caf GA |
1961 | |
1962 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
1963 | TYPE_VIRTIO_BLK); | |
467b3f33 SH |
1964 | object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev),"iothread", |
1965 | &error_abort); | |
aeb98ddc GA |
1966 | object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), |
1967 | "bootindex", &error_abort); | |
653ced07 FK |
1968 | } |
1969 | ||
1970 | static const TypeInfo virtio_blk_pci_info = { | |
1971 | .name = TYPE_VIRTIO_BLK_PCI, | |
1972 | .parent = TYPE_VIRTIO_PCI, | |
1973 | .instance_size = sizeof(VirtIOBlkPCI), | |
1974 | .instance_init = virtio_blk_pci_instance_init, | |
1975 | .class_init = virtio_blk_pci_class_init, | |
1976 | }; | |
1977 | ||
bc7b90a0 FK |
1978 | /* virtio-scsi-pci */ |
1979 | ||
1980 | static Property virtio_scsi_pci_properties[] = { | |
1981 | DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, | |
1982 | VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), | |
1983 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, | |
1984 | DEV_NVECTORS_UNSPECIFIED), | |
bc7b90a0 FK |
1985 | DEFINE_PROP_END_OF_LIST(), |
1986 | }; | |
1987 | ||
fc079951 | 1988 | static void virtio_scsi_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) |
bc7b90a0 FK |
1989 | { |
1990 | VirtIOSCSIPCI *dev = VIRTIO_SCSI_PCI(vpci_dev); | |
1991 | DeviceState *vdev = DEVICE(&dev->vdev); | |
292c8e50 | 1992 | VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(vdev); |
6f32a6b4 FK |
1993 | DeviceState *proxy = DEVICE(vpci_dev); |
1994 | char *bus_name; | |
bc7b90a0 FK |
1995 | |
1996 | if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) { | |
292c8e50 | 1997 | vpci_dev->nvectors = vs->conf.num_queues + 3; |
bc7b90a0 FK |
1998 | } |
1999 | ||
6f32a6b4 FK |
2000 | /* |
2001 | * For command line compatibility, this sets the virtio-scsi-device bus | |
2002 | * name as before. | |
2003 | */ | |
2004 | if (proxy->id) { | |
2005 | bus_name = g_strdup_printf("%s.0", proxy->id); | |
2006 | virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); | |
2007 | g_free(bus_name); | |
2008 | } | |
2009 | ||
bc7b90a0 | 2010 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
fc079951 | 2011 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
bc7b90a0 FK |
2012 | } |
2013 | ||
2014 | static void virtio_scsi_pci_class_init(ObjectClass *klass, void *data) | |
2015 | { | |
2016 | DeviceClass *dc = DEVICE_CLASS(klass); | |
2017 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
2018 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
fc079951 MA |
2019 | |
2020 | k->realize = virtio_scsi_pci_realize; | |
125ee0ed | 2021 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
bc7b90a0 FK |
2022 | dc->props = virtio_scsi_pci_properties; |
2023 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
2024 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_SCSI; | |
2025 | pcidev_k->revision = 0x00; | |
2026 | pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI; | |
2027 | } | |
2028 | ||
2029 | static void virtio_scsi_pci_instance_init(Object *obj) | |
2030 | { | |
2031 | VirtIOSCSIPCI *dev = VIRTIO_SCSI_PCI(obj); | |
c8075caf GA |
2032 | |
2033 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
2034 | TYPE_VIRTIO_SCSI); | |
19d339f1 FZ |
2035 | object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev), "iothread", |
2036 | &error_abort); | |
bc7b90a0 FK |
2037 | } |
2038 | ||
2039 | static const TypeInfo virtio_scsi_pci_info = { | |
2040 | .name = TYPE_VIRTIO_SCSI_PCI, | |
2041 | .parent = TYPE_VIRTIO_PCI, | |
2042 | .instance_size = sizeof(VirtIOSCSIPCI), | |
2043 | .instance_init = virtio_scsi_pci_instance_init, | |
2044 | .class_init = virtio_scsi_pci_class_init, | |
2045 | }; | |
2046 | ||
50787628 NB |
2047 | /* vhost-scsi-pci */ |
2048 | ||
2049 | #ifdef CONFIG_VHOST_SCSI | |
2050 | static Property vhost_scsi_pci_properties[] = { | |
2051 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, | |
2052 | DEV_NVECTORS_UNSPECIFIED), | |
50787628 NB |
2053 | DEFINE_PROP_END_OF_LIST(), |
2054 | }; | |
2055 | ||
fc079951 | 2056 | static void vhost_scsi_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) |
50787628 NB |
2057 | { |
2058 | VHostSCSIPCI *dev = VHOST_SCSI_PCI(vpci_dev); | |
2059 | DeviceState *vdev = DEVICE(&dev->vdev); | |
2060 | VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(vdev); | |
2061 | ||
2062 | if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) { | |
2063 | vpci_dev->nvectors = vs->conf.num_queues + 3; | |
2064 | } | |
2065 | ||
2066 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); | |
fc079951 | 2067 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
50787628 NB |
2068 | } |
2069 | ||
2070 | static void vhost_scsi_pci_class_init(ObjectClass *klass, void *data) | |
2071 | { | |
2072 | DeviceClass *dc = DEVICE_CLASS(klass); | |
2073 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
2074 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
fc079951 | 2075 | k->realize = vhost_scsi_pci_realize; |
125ee0ed | 2076 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
50787628 NB |
2077 | dc->props = vhost_scsi_pci_properties; |
2078 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
2079 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_SCSI; | |
2080 | pcidev_k->revision = 0x00; | |
2081 | pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI; | |
2082 | } | |
2083 | ||
2084 | static void vhost_scsi_pci_instance_init(Object *obj) | |
2085 | { | |
2086 | VHostSCSIPCI *dev = VHOST_SCSI_PCI(obj); | |
c8075caf GA |
2087 | |
2088 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
2089 | TYPE_VHOST_SCSI); | |
d4433f32 GA |
2090 | object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), |
2091 | "bootindex", &error_abort); | |
50787628 NB |
2092 | } |
2093 | ||
2094 | static const TypeInfo vhost_scsi_pci_info = { | |
2095 | .name = TYPE_VHOST_SCSI_PCI, | |
2096 | .parent = TYPE_VIRTIO_PCI, | |
2097 | .instance_size = sizeof(VHostSCSIPCI), | |
2098 | .instance_init = vhost_scsi_pci_instance_init, | |
2099 | .class_init = vhost_scsi_pci_class_init, | |
2100 | }; | |
2101 | #endif | |
2102 | ||
fc0b9b0e SH |
2103 | /* vhost-vsock-pci */ |
2104 | ||
2105 | #ifdef CONFIG_VHOST_VSOCK | |
2106 | static Property vhost_vsock_pci_properties[] = { | |
2107 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 3), | |
2108 | DEFINE_PROP_END_OF_LIST(), | |
2109 | }; | |
2110 | ||
2111 | static void vhost_vsock_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) | |
2112 | { | |
2113 | VHostVSockPCI *dev = VHOST_VSOCK_PCI(vpci_dev); | |
2114 | DeviceState *vdev = DEVICE(&dev->vdev); | |
2115 | ||
2116 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); | |
2117 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); | |
2118 | } | |
2119 | ||
2120 | static void vhost_vsock_pci_class_init(ObjectClass *klass, void *data) | |
2121 | { | |
2122 | DeviceClass *dc = DEVICE_CLASS(klass); | |
2123 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
2124 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
2125 | k->realize = vhost_vsock_pci_realize; | |
2126 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); | |
2127 | dc->props = vhost_vsock_pci_properties; | |
2128 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
2129 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_VSOCK; | |
2130 | pcidev_k->revision = 0x00; | |
2131 | pcidev_k->class_id = PCI_CLASS_COMMUNICATION_OTHER; | |
2132 | } | |
2133 | ||
2134 | static void vhost_vsock_pci_instance_init(Object *obj) | |
2135 | { | |
2136 | VHostVSockPCI *dev = VHOST_VSOCK_PCI(obj); | |
2137 | ||
2138 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
2139 | TYPE_VHOST_VSOCK); | |
2140 | } | |
2141 | ||
2142 | static const TypeInfo vhost_vsock_pci_info = { | |
2143 | .name = TYPE_VHOST_VSOCK_PCI, | |
2144 | .parent = TYPE_VIRTIO_PCI, | |
2145 | .instance_size = sizeof(VHostVSockPCI), | |
2146 | .instance_init = vhost_vsock_pci_instance_init, | |
2147 | .class_init = vhost_vsock_pci_class_init, | |
2148 | }; | |
2149 | #endif | |
2150 | ||
e378e88d FK |
2151 | /* virtio-balloon-pci */ |
2152 | ||
2153 | static Property virtio_balloon_pci_properties[] = { | |
c7bcc85d | 2154 | DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0), |
e378e88d FK |
2155 | DEFINE_PROP_END_OF_LIST(), |
2156 | }; | |
2157 | ||
fc079951 | 2158 | static void virtio_balloon_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) |
e378e88d FK |
2159 | { |
2160 | VirtIOBalloonPCI *dev = VIRTIO_BALLOON_PCI(vpci_dev); | |
2161 | DeviceState *vdev = DEVICE(&dev->vdev); | |
2162 | ||
2163 | if (vpci_dev->class_code != PCI_CLASS_OTHERS && | |
2164 | vpci_dev->class_code != PCI_CLASS_MEMORY_RAM) { /* qemu < 1.1 */ | |
2165 | vpci_dev->class_code = PCI_CLASS_OTHERS; | |
2166 | } | |
2167 | ||
2168 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); | |
fc079951 | 2169 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
e378e88d FK |
2170 | } |
2171 | ||
2172 | static void virtio_balloon_pci_class_init(ObjectClass *klass, void *data) | |
2173 | { | |
2174 | DeviceClass *dc = DEVICE_CLASS(klass); | |
2175 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
2176 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
fc079951 | 2177 | k->realize = virtio_balloon_pci_realize; |
125ee0ed | 2178 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); |
e378e88d FK |
2179 | dc->props = virtio_balloon_pci_properties; |
2180 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
2181 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_BALLOON; | |
2182 | pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; | |
2183 | pcidev_k->class_id = PCI_CLASS_OTHERS; | |
2184 | } | |
2185 | ||
2186 | static void virtio_balloon_pci_instance_init(Object *obj) | |
2187 | { | |
2188 | VirtIOBalloonPCI *dev = VIRTIO_BALLOON_PCI(obj); | |
39b87c7b | 2189 | |
a6027b0f DL |
2190 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), |
2191 | TYPE_VIRTIO_BALLOON); | |
39b87c7b SZ |
2192 | object_property_add_alias(obj, "guest-stats", OBJECT(&dev->vdev), |
2193 | "guest-stats", &error_abort); | |
2194 | object_property_add_alias(obj, "guest-stats-polling-interval", | |
2195 | OBJECT(&dev->vdev), | |
2196 | "guest-stats-polling-interval", &error_abort); | |
e378e88d FK |
2197 | } |
2198 | ||
2199 | static const TypeInfo virtio_balloon_pci_info = { | |
2200 | .name = TYPE_VIRTIO_BALLOON_PCI, | |
2201 | .parent = TYPE_VIRTIO_PCI, | |
2202 | .instance_size = sizeof(VirtIOBalloonPCI), | |
2203 | .instance_init = virtio_balloon_pci_instance_init, | |
2204 | .class_init = virtio_balloon_pci_class_init, | |
2205 | }; | |
2206 | ||
f7f7464a FK |
2207 | /* virtio-serial-pci */ |
2208 | ||
fc079951 | 2209 | static void virtio_serial_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) |
f7f7464a FK |
2210 | { |
2211 | VirtIOSerialPCI *dev = VIRTIO_SERIAL_PCI(vpci_dev); | |
2212 | DeviceState *vdev = DEVICE(&dev->vdev); | |
80270a19 FK |
2213 | DeviceState *proxy = DEVICE(vpci_dev); |
2214 | char *bus_name; | |
f7f7464a FK |
2215 | |
2216 | if (vpci_dev->class_code != PCI_CLASS_COMMUNICATION_OTHER && | |
2217 | vpci_dev->class_code != PCI_CLASS_DISPLAY_OTHER && /* qemu 0.10 */ | |
2218 | vpci_dev->class_code != PCI_CLASS_OTHERS) { /* qemu-kvm */ | |
2219 | vpci_dev->class_code = PCI_CLASS_COMMUNICATION_OTHER; | |
2220 | } | |
2221 | ||
2222 | /* backwards-compatibility with machines that were created with | |
2223 | DEV_NVECTORS_UNSPECIFIED */ | |
2224 | if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) { | |
2225 | vpci_dev->nvectors = dev->vdev.serial.max_virtserial_ports + 1; | |
2226 | } | |
2227 | ||
80270a19 FK |
2228 | /* |
2229 | * For command line compatibility, this sets the virtio-serial-device bus | |
2230 | * name as before. | |
2231 | */ | |
2232 | if (proxy->id) { | |
2233 | bus_name = g_strdup_printf("%s.0", proxy->id); | |
2234 | virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); | |
2235 | g_free(bus_name); | |
2236 | } | |
2237 | ||
f7f7464a | 2238 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
fc079951 | 2239 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
f7f7464a FK |
2240 | } |
2241 | ||
2242 | static Property virtio_serial_pci_properties[] = { | |
2243 | DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, | |
2244 | VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), | |
2245 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2), | |
c7bcc85d | 2246 | DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0), |
f7f7464a FK |
2247 | DEFINE_PROP_END_OF_LIST(), |
2248 | }; | |
2249 | ||
2250 | static void virtio_serial_pci_class_init(ObjectClass *klass, void *data) | |
2251 | { | |
2252 | DeviceClass *dc = DEVICE_CLASS(klass); | |
2253 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
2254 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
fc079951 | 2255 | k->realize = virtio_serial_pci_realize; |
125ee0ed | 2256 | set_bit(DEVICE_CATEGORY_INPUT, dc->categories); |
f7f7464a FK |
2257 | dc->props = virtio_serial_pci_properties; |
2258 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
2259 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_CONSOLE; | |
2260 | pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; | |
2261 | pcidev_k->class_id = PCI_CLASS_COMMUNICATION_OTHER; | |
2262 | } | |
2263 | ||
2264 | static void virtio_serial_pci_instance_init(Object *obj) | |
2265 | { | |
2266 | VirtIOSerialPCI *dev = VIRTIO_SERIAL_PCI(obj); | |
c8075caf GA |
2267 | |
2268 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
2269 | TYPE_VIRTIO_SERIAL); | |
f7f7464a FK |
2270 | } |
2271 | ||
2272 | static const TypeInfo virtio_serial_pci_info = { | |
2273 | .name = TYPE_VIRTIO_SERIAL_PCI, | |
2274 | .parent = TYPE_VIRTIO_PCI, | |
2275 | .instance_size = sizeof(VirtIOSerialPCI), | |
2276 | .instance_init = virtio_serial_pci_instance_init, | |
2277 | .class_init = virtio_serial_pci_class_init, | |
2278 | }; | |
2279 | ||
e37da394 FK |
2280 | /* virtio-net-pci */ |
2281 | ||
2282 | static Property virtio_net_properties[] = { | |
2283 | DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, | |
4a3f03ba | 2284 | VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), |
e37da394 | 2285 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 3), |
e37da394 FK |
2286 | DEFINE_PROP_END_OF_LIST(), |
2287 | }; | |
2288 | ||
fc079951 | 2289 | static void virtio_net_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) |
e37da394 | 2290 | { |
800ced8c | 2291 | DeviceState *qdev = DEVICE(vpci_dev); |
e37da394 FK |
2292 | VirtIONetPCI *dev = VIRTIO_NET_PCI(vpci_dev); |
2293 | DeviceState *vdev = DEVICE(&dev->vdev); | |
2294 | ||
800ced8c FK |
2295 | virtio_net_set_netclient_name(&dev->vdev, qdev->id, |
2296 | object_get_typename(OBJECT(qdev))); | |
e37da394 | 2297 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
fc079951 | 2298 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
e37da394 FK |
2299 | } |
2300 | ||
2301 | static void virtio_net_pci_class_init(ObjectClass *klass, void *data) | |
2302 | { | |
2303 | DeviceClass *dc = DEVICE_CLASS(klass); | |
2304 | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); | |
2305 | VirtioPCIClass *vpciklass = VIRTIO_PCI_CLASS(klass); | |
2306 | ||
2307 | k->romfile = "efi-virtio.rom"; | |
2308 | k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
2309 | k->device_id = PCI_DEVICE_ID_VIRTIO_NET; | |
2310 | k->revision = VIRTIO_PCI_ABI_VERSION; | |
2311 | k->class_id = PCI_CLASS_NETWORK_ETHERNET; | |
125ee0ed | 2312 | set_bit(DEVICE_CATEGORY_NETWORK, dc->categories); |
e37da394 | 2313 | dc->props = virtio_net_properties; |
fc079951 | 2314 | vpciklass->realize = virtio_net_pci_realize; |
e37da394 FK |
2315 | } |
2316 | ||
2317 | static void virtio_net_pci_instance_init(Object *obj) | |
2318 | { | |
2319 | VirtIONetPCI *dev = VIRTIO_NET_PCI(obj); | |
c8075caf GA |
2320 | |
2321 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
2322 | TYPE_VIRTIO_NET); | |
0cf63c3e GA |
2323 | object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), |
2324 | "bootindex", &error_abort); | |
e37da394 FK |
2325 | } |
2326 | ||
2327 | static const TypeInfo virtio_net_pci_info = { | |
2328 | .name = TYPE_VIRTIO_NET_PCI, | |
2329 | .parent = TYPE_VIRTIO_PCI, | |
2330 | .instance_size = sizeof(VirtIONetPCI), | |
2331 | .instance_init = virtio_net_pci_instance_init, | |
2332 | .class_init = virtio_net_pci_class_init, | |
2333 | }; | |
2334 | ||
59ccd20a FK |
2335 | /* virtio-rng-pci */ |
2336 | ||
fc079951 | 2337 | static void virtio_rng_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) |
59ccd20a FK |
2338 | { |
2339 | VirtIORngPCI *vrng = VIRTIO_RNG_PCI(vpci_dev); | |
2340 | DeviceState *vdev = DEVICE(&vrng->vdev); | |
fc079951 | 2341 | Error *err = NULL; |
59ccd20a FK |
2342 | |
2343 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); | |
fc079951 MA |
2344 | object_property_set_bool(OBJECT(vdev), true, "realized", &err); |
2345 | if (err) { | |
2346 | error_propagate(errp, err); | |
2347 | return; | |
59ccd20a FK |
2348 | } |
2349 | ||
2350 | object_property_set_link(OBJECT(vrng), | |
5b456438 | 2351 | OBJECT(vrng->vdev.conf.rng), "rng", |
59ccd20a | 2352 | NULL); |
59ccd20a FK |
2353 | } |
2354 | ||
2355 | static void virtio_rng_pci_class_init(ObjectClass *klass, void *data) | |
2356 | { | |
2357 | DeviceClass *dc = DEVICE_CLASS(klass); | |
2358 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
2359 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
2360 | ||
fc079951 | 2361 | k->realize = virtio_rng_pci_realize; |
125ee0ed | 2362 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); |
59ccd20a FK |
2363 | |
2364 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
2365 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_RNG; | |
2366 | pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; | |
2367 | pcidev_k->class_id = PCI_CLASS_OTHERS; | |
2368 | } | |
2369 | ||
2370 | static void virtio_rng_initfn(Object *obj) | |
2371 | { | |
2372 | VirtIORngPCI *dev = VIRTIO_RNG_PCI(obj); | |
c8075caf GA |
2373 | |
2374 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
2375 | TYPE_VIRTIO_RNG); | |
cbd5ac69 PB |
2376 | object_property_add_alias(obj, "rng", OBJECT(&dev->vdev), "rng", |
2377 | &error_abort); | |
59ccd20a FK |
2378 | } |
2379 | ||
2380 | static const TypeInfo virtio_rng_pci_info = { | |
2381 | .name = TYPE_VIRTIO_RNG_PCI, | |
2382 | .parent = TYPE_VIRTIO_PCI, | |
2383 | .instance_size = sizeof(VirtIORngPCI), | |
2384 | .instance_init = virtio_rng_initfn, | |
2385 | .class_init = virtio_rng_pci_class_init, | |
2386 | }; | |
2387 | ||
f958c8aa GH |
2388 | /* virtio-input-pci */ |
2389 | ||
6f2b9a5b | 2390 | static Property virtio_input_pci_properties[] = { |
710e2d90 GH |
2391 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2), |
2392 | DEFINE_PROP_END_OF_LIST(), | |
2393 | }; | |
2394 | ||
f958c8aa GH |
2395 | static void virtio_input_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) |
2396 | { | |
2397 | VirtIOInputPCI *vinput = VIRTIO_INPUT_PCI(vpci_dev); | |
2398 | DeviceState *vdev = DEVICE(&vinput->vdev); | |
2399 | ||
2400 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); | |
9a4c0e22 | 2401 | virtio_pci_force_virtio_1(vpci_dev); |
f958c8aa GH |
2402 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
2403 | } | |
2404 | ||
2405 | static void virtio_input_pci_class_init(ObjectClass *klass, void *data) | |
2406 | { | |
2407 | DeviceClass *dc = DEVICE_CLASS(klass); | |
2408 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
2409 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
2410 | ||
6f2b9a5b | 2411 | dc->props = virtio_input_pci_properties; |
f958c8aa GH |
2412 | k->realize = virtio_input_pci_realize; |
2413 | set_bit(DEVICE_CATEGORY_INPUT, dc->categories); | |
2414 | ||
2415 | pcidev_k->class_id = PCI_CLASS_INPUT_OTHER; | |
2416 | } | |
2417 | ||
710e2d90 GH |
2418 | static void virtio_input_hid_kbd_pci_class_init(ObjectClass *klass, void *data) |
2419 | { | |
2420 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
2421 | ||
2422 | pcidev_k->class_id = PCI_CLASS_INPUT_KEYBOARD; | |
2423 | } | |
2424 | ||
2425 | static void virtio_input_hid_mouse_pci_class_init(ObjectClass *klass, | |
2426 | void *data) | |
2427 | { | |
2428 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
2429 | ||
2430 | pcidev_k->class_id = PCI_CLASS_INPUT_MOUSE; | |
2431 | } | |
2432 | ||
2433 | static void virtio_keyboard_initfn(Object *obj) | |
2434 | { | |
2435 | VirtIOInputHIDPCI *dev = VIRTIO_INPUT_HID_PCI(obj); | |
6f2b9a5b GH |
2436 | |
2437 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
2438 | TYPE_VIRTIO_KEYBOARD); | |
710e2d90 GH |
2439 | } |
2440 | ||
2441 | static void virtio_mouse_initfn(Object *obj) | |
2442 | { | |
2443 | VirtIOInputHIDPCI *dev = VIRTIO_INPUT_HID_PCI(obj); | |
6f2b9a5b GH |
2444 | |
2445 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
2446 | TYPE_VIRTIO_MOUSE); | |
710e2d90 GH |
2447 | } |
2448 | ||
2449 | static void virtio_tablet_initfn(Object *obj) | |
2450 | { | |
2451 | VirtIOInputHIDPCI *dev = VIRTIO_INPUT_HID_PCI(obj); | |
6f2b9a5b GH |
2452 | |
2453 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
2454 | TYPE_VIRTIO_TABLET); | |
710e2d90 GH |
2455 | } |
2456 | ||
f958c8aa GH |
2457 | static const TypeInfo virtio_input_pci_info = { |
2458 | .name = TYPE_VIRTIO_INPUT_PCI, | |
2459 | .parent = TYPE_VIRTIO_PCI, | |
2460 | .instance_size = sizeof(VirtIOInputPCI), | |
2461 | .class_init = virtio_input_pci_class_init, | |
2462 | .abstract = true, | |
2463 | }; | |
2464 | ||
710e2d90 GH |
2465 | static const TypeInfo virtio_input_hid_pci_info = { |
2466 | .name = TYPE_VIRTIO_INPUT_HID_PCI, | |
2467 | .parent = TYPE_VIRTIO_INPUT_PCI, | |
2468 | .instance_size = sizeof(VirtIOInputHIDPCI), | |
710e2d90 GH |
2469 | .abstract = true, |
2470 | }; | |
2471 | ||
2472 | static const TypeInfo virtio_keyboard_pci_info = { | |
2473 | .name = TYPE_VIRTIO_KEYBOARD_PCI, | |
2474 | .parent = TYPE_VIRTIO_INPUT_HID_PCI, | |
2475 | .class_init = virtio_input_hid_kbd_pci_class_init, | |
2476 | .instance_size = sizeof(VirtIOInputHIDPCI), | |
2477 | .instance_init = virtio_keyboard_initfn, | |
2478 | }; | |
2479 | ||
2480 | static const TypeInfo virtio_mouse_pci_info = { | |
2481 | .name = TYPE_VIRTIO_MOUSE_PCI, | |
2482 | .parent = TYPE_VIRTIO_INPUT_HID_PCI, | |
2483 | .class_init = virtio_input_hid_mouse_pci_class_init, | |
2484 | .instance_size = sizeof(VirtIOInputHIDPCI), | |
2485 | .instance_init = virtio_mouse_initfn, | |
2486 | }; | |
2487 | ||
2488 | static const TypeInfo virtio_tablet_pci_info = { | |
2489 | .name = TYPE_VIRTIO_TABLET_PCI, | |
2490 | .parent = TYPE_VIRTIO_INPUT_HID_PCI, | |
2491 | .instance_size = sizeof(VirtIOInputHIDPCI), | |
2492 | .instance_init = virtio_tablet_initfn, | |
2493 | }; | |
2494 | ||
c6047e96 MA |
2495 | #ifdef CONFIG_LINUX |
2496 | static void virtio_host_initfn(Object *obj) | |
2497 | { | |
2498 | VirtIOInputHostPCI *dev = VIRTIO_INPUT_HOST_PCI(obj); | |
2499 | ||
2500 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
2501 | TYPE_VIRTIO_INPUT_HOST); | |
2502 | } | |
2503 | ||
006a5ede GH |
2504 | static const TypeInfo virtio_host_pci_info = { |
2505 | .name = TYPE_VIRTIO_INPUT_HOST_PCI, | |
2506 | .parent = TYPE_VIRTIO_INPUT_PCI, | |
2507 | .instance_size = sizeof(VirtIOInputHostPCI), | |
2508 | .instance_init = virtio_host_initfn, | |
2509 | }; | |
c6047e96 | 2510 | #endif |
006a5ede | 2511 | |
0a2acf5e FK |
2512 | /* virtio-pci-bus */ |
2513 | ||
ac7af112 AF |
2514 | static void virtio_pci_bus_new(VirtioBusState *bus, size_t bus_size, |
2515 | VirtIOPCIProxy *dev) | |
0a2acf5e FK |
2516 | { |
2517 | DeviceState *qdev = DEVICE(dev); | |
f4dd69aa FK |
2518 | char virtio_bus_name[] = "virtio-bus"; |
2519 | ||
fb17dfe0 | 2520 | qbus_create_inplace(bus, bus_size, TYPE_VIRTIO_PCI_BUS, qdev, |
f4dd69aa | 2521 | virtio_bus_name); |
0a2acf5e FK |
2522 | } |
2523 | ||
2524 | static void virtio_pci_bus_class_init(ObjectClass *klass, void *data) | |
2525 | { | |
2526 | BusClass *bus_class = BUS_CLASS(klass); | |
2527 | VirtioBusClass *k = VIRTIO_BUS_CLASS(klass); | |
2528 | bus_class->max_dev = 1; | |
2529 | k->notify = virtio_pci_notify; | |
2530 | k->save_config = virtio_pci_save_config; | |
2531 | k->load_config = virtio_pci_load_config; | |
2532 | k->save_queue = virtio_pci_save_queue; | |
2533 | k->load_queue = virtio_pci_load_queue; | |
a6df8adf JW |
2534 | k->save_extra_state = virtio_pci_save_extra_state; |
2535 | k->load_extra_state = virtio_pci_load_extra_state; | |
2536 | k->has_extra_state = virtio_pci_has_extra_state; | |
0a2acf5e | 2537 | k->query_guest_notifiers = virtio_pci_query_guest_notifiers; |
0a2acf5e FK |
2538 | k->set_guest_notifiers = virtio_pci_set_guest_notifiers; |
2539 | k->vmstate_change = virtio_pci_vmstate_change; | |
d1b4259f | 2540 | k->pre_plugged = virtio_pci_pre_plugged; |
085bccb7 | 2541 | k->device_plugged = virtio_pci_device_plugged; |
06a13073 | 2542 | k->device_unplugged = virtio_pci_device_unplugged; |
e0d686bf | 2543 | k->query_nvectors = virtio_pci_query_nvectors; |
8e93cef1 | 2544 | k->ioeventfd_enabled = virtio_pci_ioeventfd_enabled; |
9f06e71a | 2545 | k->ioeventfd_assign = virtio_pci_ioeventfd_assign; |
8607f5c3 | 2546 | k->get_dma_as = virtio_pci_get_dma_as; |
0a2acf5e FK |
2547 | } |
2548 | ||
2549 | static const TypeInfo virtio_pci_bus_info = { | |
2550 | .name = TYPE_VIRTIO_PCI_BUS, | |
2551 | .parent = TYPE_VIRTIO_BUS, | |
2552 | .instance_size = sizeof(VirtioPCIBusState), | |
2553 | .class_init = virtio_pci_bus_class_init, | |
2554 | }; | |
2555 | ||
83f7d43a | 2556 | static void virtio_pci_register_types(void) |
53c25cea | 2557 | { |
59ccd20a | 2558 | type_register_static(&virtio_rng_pci_info); |
f958c8aa | 2559 | type_register_static(&virtio_input_pci_info); |
710e2d90 GH |
2560 | type_register_static(&virtio_input_hid_pci_info); |
2561 | type_register_static(&virtio_keyboard_pci_info); | |
2562 | type_register_static(&virtio_mouse_pci_info); | |
2563 | type_register_static(&virtio_tablet_pci_info); | |
c6047e96 | 2564 | #ifdef CONFIG_LINUX |
006a5ede | 2565 | type_register_static(&virtio_host_pci_info); |
c6047e96 | 2566 | #endif |
0a2acf5e | 2567 | type_register_static(&virtio_pci_bus_info); |
085bccb7 | 2568 | type_register_static(&virtio_pci_info); |
60653b28 | 2569 | #ifdef CONFIG_VIRTFS |
234a336f | 2570 | type_register_static(&virtio_9p_pci_info); |
60653b28 | 2571 | #endif |
653ced07 | 2572 | type_register_static(&virtio_blk_pci_info); |
bc7b90a0 | 2573 | type_register_static(&virtio_scsi_pci_info); |
e378e88d | 2574 | type_register_static(&virtio_balloon_pci_info); |
f7f7464a | 2575 | type_register_static(&virtio_serial_pci_info); |
e37da394 | 2576 | type_register_static(&virtio_net_pci_info); |
50787628 NB |
2577 | #ifdef CONFIG_VHOST_SCSI |
2578 | type_register_static(&vhost_scsi_pci_info); | |
2579 | #endif | |
fc0b9b0e SH |
2580 | #ifdef CONFIG_VHOST_VSOCK |
2581 | type_register_static(&vhost_vsock_pci_info); | |
2582 | #endif | |
53c25cea PB |
2583 | } |
2584 | ||
83f7d43a | 2585 | type_init(virtio_pci_register_types) |