]>
Commit | Line | Data |
---|---|---|
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 | ||
18 | #include <inttypes.h> | |
19 | ||
20 | #include "virtio.h" | |
8172539d MT |
21 | #include "virtio-blk.h" |
22 | #include "virtio-net.h" | |
6b331efb | 23 | #include "virtio-serial.h" |
973abc7f | 24 | #include "virtio-scsi.h" |
a2cb15b0 | 25 | #include "pci/pci.h" |
1de7afc9 | 26 | #include "qemu/error-report.h" |
a2cb15b0 MT |
27 | #include "pci/msi.h" |
28 | #include "pci/msix.h" | |
97b15621 | 29 | #include "loader.h" |
9c17d615 PB |
30 | #include "sysemu/kvm.h" |
31 | #include "sysemu/blockdev.h" | |
9fe1ebeb | 32 | #include "virtio-pci.h" |
1de7afc9 | 33 | #include "qemu/range.h" |
53c25cea PB |
34 | |
35 | /* from Linux's linux/virtio_pci.h */ | |
36 | ||
37 | /* A 32-bit r/o bitmask of the features supported by the host */ | |
38 | #define VIRTIO_PCI_HOST_FEATURES 0 | |
39 | ||
40 | /* A 32-bit r/w bitmask of features activated by the guest */ | |
41 | #define VIRTIO_PCI_GUEST_FEATURES 4 | |
42 | ||
43 | /* A 32-bit r/w PFN for the currently selected queue */ | |
44 | #define VIRTIO_PCI_QUEUE_PFN 8 | |
45 | ||
46 | /* A 16-bit r/o queue size for the currently selected queue */ | |
47 | #define VIRTIO_PCI_QUEUE_NUM 12 | |
48 | ||
49 | /* A 16-bit r/w queue selector */ | |
50 | #define VIRTIO_PCI_QUEUE_SEL 14 | |
51 | ||
52 | /* A 16-bit r/w queue notifier */ | |
53 | #define VIRTIO_PCI_QUEUE_NOTIFY 16 | |
54 | ||
55 | /* An 8-bit device status register. */ | |
56 | #define VIRTIO_PCI_STATUS 18 | |
57 | ||
58 | /* An 8-bit r/o interrupt status register. Reading the value will return the | |
59 | * current contents of the ISR and will also clear it. This is effectively | |
60 | * a read-and-acknowledge. */ | |
61 | #define VIRTIO_PCI_ISR 19 | |
62 | ||
aba800a3 MT |
63 | /* MSI-X registers: only enabled if MSI-X is enabled. */ |
64 | /* A 16-bit vector for configuration changes. */ | |
65 | #define VIRTIO_MSI_CONFIG_VECTOR 20 | |
66 | /* A 16-bit vector for selected queue notifications. */ | |
67 | #define VIRTIO_MSI_QUEUE_VECTOR 22 | |
68 | ||
69 | /* Config space size */ | |
70 | #define VIRTIO_PCI_CONFIG_NOMSI 20 | |
71 | #define VIRTIO_PCI_CONFIG_MSI 24 | |
72 | #define VIRTIO_PCI_REGION_SIZE(dev) (msix_present(dev) ? \ | |
73 | VIRTIO_PCI_CONFIG_MSI : \ | |
74 | VIRTIO_PCI_CONFIG_NOMSI) | |
75 | ||
76 | /* The remaining space is defined by each driver as the per-driver | |
77 | * configuration space */ | |
78 | #define VIRTIO_PCI_CONFIG(dev) (msix_enabled(dev) ? \ | |
79 | VIRTIO_PCI_CONFIG_MSI : \ | |
80 | VIRTIO_PCI_CONFIG_NOMSI) | |
53c25cea | 81 | |
53c25cea PB |
82 | /* How many bits to shift physical queue address written to QUEUE_PFN. |
83 | * 12 is historical, and due to x86 page size. */ | |
84 | #define VIRTIO_PCI_QUEUE_ADDR_SHIFT 12 | |
85 | ||
3dbca8e6 SH |
86 | /* Flags track per-device state like workarounds for quirks in older guests. */ |
87 | #define VIRTIO_PCI_FLAG_BUS_MASTER_BUG (1 << 0) | |
c81131db | 88 | |
53c25cea PB |
89 | /* QEMU doesn't strictly need write barriers since everything runs in |
90 | * lock-step. We'll leave the calls to wmb() in though to make it obvious for | |
91 | * KVM or if kqemu gets SMP support. | |
92 | */ | |
93 | #define wmb() do { } while (0) | |
94 | ||
8e4a424b BS |
95 | /* HACK for virtio to determine if it's running a big endian guest */ |
96 | bool virtio_is_big_endian(void); | |
97 | ||
53c25cea | 98 | /* virtio device */ |
d2a0ccc6 MT |
99 | /* DeviceState to VirtIOPCIProxy. For use off data-path. TODO: use QOM. */ |
100 | static inline VirtIOPCIProxy *to_virtio_pci_proxy(DeviceState *d) | |
101 | { | |
102 | return container_of(d, VirtIOPCIProxy, pci_dev.qdev); | |
103 | } | |
53c25cea | 104 | |
d2a0ccc6 MT |
105 | /* DeviceState to VirtIOPCIProxy. Note: used on datapath, |
106 | * be careful and test performance if you change this. | |
107 | */ | |
108 | static inline VirtIOPCIProxy *to_virtio_pci_proxy_fast(DeviceState *d) | |
53c25cea | 109 | { |
d2a0ccc6 MT |
110 | return container_of(d, VirtIOPCIProxy, pci_dev.qdev); |
111 | } | |
112 | ||
113 | static void virtio_pci_notify(DeviceState *d, uint16_t vector) | |
114 | { | |
115 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy_fast(d); | |
aba800a3 MT |
116 | if (msix_enabled(&proxy->pci_dev)) |
117 | msix_notify(&proxy->pci_dev, vector); | |
118 | else | |
119 | qemu_set_irq(proxy->pci_dev.irq[0], proxy->vdev->isr & 1); | |
53c25cea PB |
120 | } |
121 | ||
d2a0ccc6 | 122 | static void virtio_pci_save_config(DeviceState *d, QEMUFile *f) |
ff24bd58 | 123 | { |
d2a0ccc6 | 124 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
ff24bd58 MT |
125 | pci_device_save(&proxy->pci_dev, f); |
126 | msix_save(&proxy->pci_dev, f); | |
127 | if (msix_present(&proxy->pci_dev)) | |
128 | qemu_put_be16(f, proxy->vdev->config_vector); | |
129 | } | |
130 | ||
d2a0ccc6 | 131 | static void virtio_pci_save_queue(DeviceState *d, int n, QEMUFile *f) |
ff24bd58 | 132 | { |
d2a0ccc6 | 133 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
ff24bd58 MT |
134 | if (msix_present(&proxy->pci_dev)) |
135 | qemu_put_be16(f, virtio_queue_vector(proxy->vdev, n)); | |
136 | } | |
137 | ||
d2a0ccc6 | 138 | static int virtio_pci_load_config(DeviceState *d, QEMUFile *f) |
ff24bd58 | 139 | { |
d2a0ccc6 | 140 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
ff24bd58 MT |
141 | int ret; |
142 | ret = pci_device_load(&proxy->pci_dev, f); | |
e6da7680 | 143 | if (ret) { |
ff24bd58 | 144 | return ret; |
e6da7680 | 145 | } |
3cac001e | 146 | msix_unuse_all_vectors(&proxy->pci_dev); |
ff24bd58 | 147 | msix_load(&proxy->pci_dev, f); |
e6da7680 | 148 | if (msix_present(&proxy->pci_dev)) { |
ff24bd58 | 149 | qemu_get_be16s(f, &proxy->vdev->config_vector); |
e6da7680 MT |
150 | } else { |
151 | proxy->vdev->config_vector = VIRTIO_NO_VECTOR; | |
152 | } | |
153 | if (proxy->vdev->config_vector != VIRTIO_NO_VECTOR) { | |
154 | return msix_vector_use(&proxy->pci_dev, proxy->vdev->config_vector); | |
155 | } | |
ff24bd58 MT |
156 | return 0; |
157 | } | |
158 | ||
d2a0ccc6 | 159 | static int virtio_pci_load_queue(DeviceState *d, int n, QEMUFile *f) |
ff24bd58 | 160 | { |
d2a0ccc6 | 161 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
ff24bd58 | 162 | uint16_t vector; |
e6da7680 MT |
163 | if (msix_present(&proxy->pci_dev)) { |
164 | qemu_get_be16s(f, &vector); | |
165 | } else { | |
166 | vector = VIRTIO_NO_VECTOR; | |
167 | } | |
ff24bd58 | 168 | virtio_queue_set_vector(proxy->vdev, n, vector); |
e6da7680 MT |
169 | if (vector != VIRTIO_NO_VECTOR) { |
170 | return msix_vector_use(&proxy->pci_dev, vector); | |
171 | } | |
ff24bd58 MT |
172 | return 0; |
173 | } | |
174 | ||
25db9ebe | 175 | static int virtio_pci_set_host_notifier_internal(VirtIOPCIProxy *proxy, |
26b9b5fe | 176 | int n, bool assign, bool set_handler) |
25db9ebe SH |
177 | { |
178 | VirtQueue *vq = virtio_get_queue(proxy->vdev, n); | |
179 | EventNotifier *notifier = virtio_queue_get_host_notifier(vq); | |
da146d0a AK |
180 | int r = 0; |
181 | ||
25db9ebe SH |
182 | if (assign) { |
183 | r = event_notifier_init(notifier, 1); | |
184 | if (r < 0) { | |
b36e3914 MT |
185 | error_report("%s: unable to init event notifier: %d", |
186 | __func__, r); | |
25db9ebe SH |
187 | return r; |
188 | } | |
26b9b5fe | 189 | virtio_queue_set_host_notifier_fd_handler(vq, true, set_handler); |
da146d0a | 190 | memory_region_add_eventfd(&proxy->bar, VIRTIO_PCI_QUEUE_NOTIFY, 2, |
753d5e14 | 191 | true, n, notifier); |
25db9ebe | 192 | } else { |
da146d0a | 193 | memory_region_del_eventfd(&proxy->bar, VIRTIO_PCI_QUEUE_NOTIFY, 2, |
753d5e14 | 194 | true, n, notifier); |
26b9b5fe | 195 | virtio_queue_set_host_notifier_fd_handler(vq, false, false); |
25db9ebe SH |
196 | event_notifier_cleanup(notifier); |
197 | } | |
198 | return r; | |
199 | } | |
200 | ||
b36e3914 | 201 | static void virtio_pci_start_ioeventfd(VirtIOPCIProxy *proxy) |
25db9ebe SH |
202 | { |
203 | int n, r; | |
204 | ||
205 | if (!(proxy->flags & VIRTIO_PCI_FLAG_USE_IOEVENTFD) || | |
206 | proxy->ioeventfd_disabled || | |
207 | proxy->ioeventfd_started) { | |
b36e3914 | 208 | return; |
25db9ebe SH |
209 | } |
210 | ||
211 | for (n = 0; n < VIRTIO_PCI_QUEUE_MAX; n++) { | |
212 | if (!virtio_queue_get_num(proxy->vdev, n)) { | |
213 | continue; | |
214 | } | |
215 | ||
26b9b5fe | 216 | r = virtio_pci_set_host_notifier_internal(proxy, n, true, true); |
25db9ebe SH |
217 | if (r < 0) { |
218 | goto assign_error; | |
219 | } | |
25db9ebe SH |
220 | } |
221 | proxy->ioeventfd_started = true; | |
b36e3914 | 222 | return; |
25db9ebe SH |
223 | |
224 | assign_error: | |
225 | while (--n >= 0) { | |
226 | if (!virtio_queue_get_num(proxy->vdev, n)) { | |
227 | continue; | |
228 | } | |
229 | ||
26b9b5fe | 230 | r = virtio_pci_set_host_notifier_internal(proxy, n, false, false); |
b36e3914 | 231 | assert(r >= 0); |
25db9ebe SH |
232 | } |
233 | proxy->ioeventfd_started = false; | |
b36e3914 | 234 | error_report("%s: failed. Fallback to a userspace (slower).", __func__); |
25db9ebe SH |
235 | } |
236 | ||
b36e3914 | 237 | static void virtio_pci_stop_ioeventfd(VirtIOPCIProxy *proxy) |
25db9ebe | 238 | { |
b36e3914 | 239 | int r; |
25db9ebe SH |
240 | int n; |
241 | ||
242 | if (!proxy->ioeventfd_started) { | |
b36e3914 | 243 | return; |
25db9ebe SH |
244 | } |
245 | ||
246 | for (n = 0; n < VIRTIO_PCI_QUEUE_MAX; n++) { | |
247 | if (!virtio_queue_get_num(proxy->vdev, n)) { | |
248 | continue; | |
249 | } | |
250 | ||
26b9b5fe | 251 | r = virtio_pci_set_host_notifier_internal(proxy, n, false, false); |
b36e3914 | 252 | assert(r >= 0); |
25db9ebe SH |
253 | } |
254 | proxy->ioeventfd_started = false; | |
25db9ebe SH |
255 | } |
256 | ||
8798d6c9 | 257 | void virtio_pci_reset(DeviceState *d) |
7055e687 | 258 | { |
d2a0ccc6 | 259 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
25db9ebe | 260 | virtio_pci_stop_ioeventfd(proxy); |
7055e687 | 261 | virtio_reset(proxy->vdev); |
3cac001e | 262 | msix_unuse_all_vectors(&proxy->pci_dev); |
25db9ebe | 263 | proxy->flags &= ~VIRTIO_PCI_FLAG_BUS_MASTER_BUG; |
7055e687 MT |
264 | } |
265 | ||
53c25cea PB |
266 | static void virtio_ioport_write(void *opaque, uint32_t addr, uint32_t val) |
267 | { | |
268 | VirtIOPCIProxy *proxy = opaque; | |
269 | VirtIODevice *vdev = proxy->vdev; | |
a8170e5e | 270 | hwaddr pa; |
53c25cea | 271 | |
53c25cea PB |
272 | switch (addr) { |
273 | case VIRTIO_PCI_GUEST_FEATURES: | |
274 | /* Guest does not negotiate properly? We have to assume nothing. */ | |
275 | if (val & (1 << VIRTIO_F_BAD_FEATURE)) { | |
ad0c9332 | 276 | val = vdev->bad_features ? vdev->bad_features(vdev) : 0; |
53c25cea | 277 | } |
ad0c9332 | 278 | virtio_set_features(vdev, val); |
53c25cea PB |
279 | break; |
280 | case VIRTIO_PCI_QUEUE_PFN: | |
a8170e5e | 281 | pa = (hwaddr)val << VIRTIO_PCI_QUEUE_ADDR_SHIFT; |
1b8e9b27 | 282 | if (pa == 0) { |
25db9ebe | 283 | virtio_pci_stop_ioeventfd(proxy); |
1b8e9b27 MT |
284 | virtio_reset(proxy->vdev); |
285 | msix_unuse_all_vectors(&proxy->pci_dev); | |
286 | } | |
7055e687 MT |
287 | else |
288 | virtio_queue_set_addr(vdev, vdev->queue_sel, pa); | |
53c25cea PB |
289 | break; |
290 | case VIRTIO_PCI_QUEUE_SEL: | |
291 | if (val < VIRTIO_PCI_QUEUE_MAX) | |
292 | vdev->queue_sel = val; | |
293 | break; | |
294 | case VIRTIO_PCI_QUEUE_NOTIFY: | |
7157e2e2 SH |
295 | if (val < VIRTIO_PCI_QUEUE_MAX) { |
296 | virtio_queue_notify(vdev, val); | |
297 | } | |
53c25cea PB |
298 | break; |
299 | case VIRTIO_PCI_STATUS: | |
25db9ebe SH |
300 | if (!(val & VIRTIO_CONFIG_S_DRIVER_OK)) { |
301 | virtio_pci_stop_ioeventfd(proxy); | |
302 | } | |
303 | ||
3e607cb5 | 304 | virtio_set_status(vdev, val & 0xFF); |
25db9ebe SH |
305 | |
306 | if (val & VIRTIO_CONFIG_S_DRIVER_OK) { | |
307 | virtio_pci_start_ioeventfd(proxy); | |
308 | } | |
309 | ||
1b8e9b27 MT |
310 | if (vdev->status == 0) { |
311 | virtio_reset(proxy->vdev); | |
312 | msix_unuse_all_vectors(&proxy->pci_dev); | |
313 | } | |
c81131db AG |
314 | |
315 | /* Linux before 2.6.34 sets the device as OK without enabling | |
316 | the PCI device bus master bit. In this case we need to disable | |
317 | some safety checks. */ | |
318 | if ((val & VIRTIO_CONFIG_S_DRIVER_OK) && | |
319 | !(proxy->pci_dev.config[PCI_COMMAND] & PCI_COMMAND_MASTER)) { | |
3dbca8e6 | 320 | proxy->flags |= VIRTIO_PCI_FLAG_BUS_MASTER_BUG; |
c81131db | 321 | } |
53c25cea | 322 | break; |
aba800a3 MT |
323 | case VIRTIO_MSI_CONFIG_VECTOR: |
324 | msix_vector_unuse(&proxy->pci_dev, vdev->config_vector); | |
325 | /* Make it possible for guest to discover an error took place. */ | |
326 | if (msix_vector_use(&proxy->pci_dev, val) < 0) | |
327 | val = VIRTIO_NO_VECTOR; | |
328 | vdev->config_vector = val; | |
329 | break; | |
330 | case VIRTIO_MSI_QUEUE_VECTOR: | |
331 | msix_vector_unuse(&proxy->pci_dev, | |
332 | virtio_queue_vector(vdev, vdev->queue_sel)); | |
333 | /* Make it possible for guest to discover an error took place. */ | |
334 | if (msix_vector_use(&proxy->pci_dev, val) < 0) | |
335 | val = VIRTIO_NO_VECTOR; | |
336 | virtio_queue_set_vector(vdev, vdev->queue_sel, val); | |
337 | break; | |
338 | default: | |
4e02d460 SH |
339 | error_report("%s: unexpected address 0x%x value 0x%x", |
340 | __func__, addr, val); | |
aba800a3 | 341 | break; |
53c25cea PB |
342 | } |
343 | } | |
344 | ||
aba800a3 | 345 | static uint32_t virtio_ioport_read(VirtIOPCIProxy *proxy, uint32_t addr) |
53c25cea | 346 | { |
53c25cea PB |
347 | VirtIODevice *vdev = proxy->vdev; |
348 | uint32_t ret = 0xFFFFFFFF; | |
349 | ||
53c25cea PB |
350 | switch (addr) { |
351 | case VIRTIO_PCI_HOST_FEATURES: | |
8172539d | 352 | ret = proxy->host_features; |
53c25cea PB |
353 | break; |
354 | case VIRTIO_PCI_GUEST_FEATURES: | |
704a76fc | 355 | ret = vdev->guest_features; |
53c25cea PB |
356 | break; |
357 | case VIRTIO_PCI_QUEUE_PFN: | |
358 | ret = virtio_queue_get_addr(vdev, vdev->queue_sel) | |
359 | >> VIRTIO_PCI_QUEUE_ADDR_SHIFT; | |
360 | break; | |
361 | case VIRTIO_PCI_QUEUE_NUM: | |
362 | ret = virtio_queue_get_num(vdev, vdev->queue_sel); | |
363 | break; | |
364 | case VIRTIO_PCI_QUEUE_SEL: | |
365 | ret = vdev->queue_sel; | |
366 | break; | |
367 | case VIRTIO_PCI_STATUS: | |
368 | ret = vdev->status; | |
369 | break; | |
370 | case VIRTIO_PCI_ISR: | |
371 | /* reading from the ISR also clears it. */ | |
372 | ret = vdev->isr; | |
373 | vdev->isr = 0; | |
7055e687 | 374 | qemu_set_irq(proxy->pci_dev.irq[0], 0); |
53c25cea | 375 | break; |
aba800a3 MT |
376 | case VIRTIO_MSI_CONFIG_VECTOR: |
377 | ret = vdev->config_vector; | |
378 | break; | |
379 | case VIRTIO_MSI_QUEUE_VECTOR: | |
380 | ret = virtio_queue_vector(vdev, vdev->queue_sel); | |
381 | break; | |
53c25cea PB |
382 | default: |
383 | break; | |
384 | } | |
385 | ||
386 | return ret; | |
387 | } | |
388 | ||
df6db5b3 AG |
389 | static uint64_t virtio_pci_config_read(void *opaque, hwaddr addr, |
390 | unsigned size) | |
53c25cea PB |
391 | { |
392 | VirtIOPCIProxy *proxy = opaque; | |
aba800a3 | 393 | uint32_t config = VIRTIO_PCI_CONFIG(&proxy->pci_dev); |
df6db5b3 | 394 | uint64_t val = 0; |
aba800a3 | 395 | if (addr < config) { |
df6db5b3 | 396 | return virtio_ioport_read(proxy, addr); |
aba800a3 MT |
397 | } |
398 | addr -= config; | |
53c25cea | 399 | |
df6db5b3 AG |
400 | switch (size) { |
401 | case 1: | |
402 | val = virtio_config_readb(proxy->vdev, addr); | |
403 | break; | |
404 | case 2: | |
405 | val = virtio_config_readw(proxy->vdev, addr); | |
8e4a424b BS |
406 | if (virtio_is_big_endian()) { |
407 | val = bswap16(val); | |
408 | } | |
df6db5b3 AG |
409 | break; |
410 | case 4: | |
411 | val = virtio_config_readl(proxy->vdev, addr); | |
8e4a424b BS |
412 | if (virtio_is_big_endian()) { |
413 | val = bswap32(val); | |
414 | } | |
df6db5b3 | 415 | break; |
82afa586 | 416 | } |
df6db5b3 | 417 | return val; |
53c25cea PB |
418 | } |
419 | ||
df6db5b3 AG |
420 | static void virtio_pci_config_write(void *opaque, hwaddr addr, |
421 | uint64_t val, unsigned size) | |
53c25cea PB |
422 | { |
423 | VirtIOPCIProxy *proxy = opaque; | |
aba800a3 | 424 | uint32_t config = VIRTIO_PCI_CONFIG(&proxy->pci_dev); |
aba800a3 MT |
425 | if (addr < config) { |
426 | virtio_ioport_write(proxy, addr, val); | |
427 | return; | |
428 | } | |
429 | addr -= config; | |
df6db5b3 AG |
430 | /* |
431 | * Virtio-PCI is odd. Ioports are LE but config space is target native | |
432 | * endian. | |
433 | */ | |
434 | switch (size) { | |
435 | case 1: | |
436 | virtio_config_writeb(proxy->vdev, addr, val); | |
437 | break; | |
438 | case 2: | |
8e4a424b BS |
439 | if (virtio_is_big_endian()) { |
440 | val = bswap16(val); | |
441 | } | |
df6db5b3 AG |
442 | virtio_config_writew(proxy->vdev, addr, val); |
443 | break; | |
444 | case 4: | |
8e4a424b BS |
445 | if (virtio_is_big_endian()) { |
446 | val = bswap32(val); | |
447 | } | |
df6db5b3 AG |
448 | virtio_config_writel(proxy->vdev, addr, val); |
449 | break; | |
82afa586 | 450 | } |
53c25cea PB |
451 | } |
452 | ||
da146d0a | 453 | static const MemoryRegionOps virtio_pci_config_ops = { |
df6db5b3 AG |
454 | .read = virtio_pci_config_read, |
455 | .write = virtio_pci_config_write, | |
456 | .impl = { | |
457 | .min_access_size = 1, | |
458 | .max_access_size = 4, | |
459 | }, | |
8e4a424b | 460 | .endianness = DEVICE_LITTLE_ENDIAN, |
da146d0a | 461 | }; |
aba800a3 MT |
462 | |
463 | static void virtio_write_config(PCIDevice *pci_dev, uint32_t address, | |
464 | uint32_t val, int len) | |
465 | { | |
ed757e14 YV |
466 | VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev); |
467 | ||
1129714f MT |
468 | pci_default_write_config(pci_dev, address, val, len); |
469 | ||
470 | if (range_covers_byte(address, len, PCI_COMMAND) && | |
471 | !(pci_dev->config[PCI_COMMAND] & PCI_COMMAND_MASTER) && | |
472 | !(proxy->flags & VIRTIO_PCI_FLAG_BUS_MASTER_BUG)) { | |
473 | virtio_pci_stop_ioeventfd(proxy); | |
474 | virtio_set_status(proxy->vdev, | |
475 | proxy->vdev->status & ~VIRTIO_CONFIG_S_DRIVER_OK); | |
ed757e14 | 476 | } |
53c25cea PB |
477 | } |
478 | ||
d2a0ccc6 | 479 | static unsigned virtio_pci_get_features(DeviceState *d) |
6d74ca5a | 480 | { |
d2a0ccc6 | 481 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
8172539d | 482 | return proxy->host_features; |
6d74ca5a MT |
483 | } |
484 | ||
7d37d351 JK |
485 | static int kvm_virtio_pci_vq_vector_use(VirtIOPCIProxy *proxy, |
486 | unsigned int queue_no, | |
487 | unsigned int vector, | |
488 | MSIMessage msg) | |
489 | { | |
7d37d351 | 490 | VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector]; |
15b2bd18 | 491 | int ret; |
7d37d351 JK |
492 | |
493 | if (irqfd->users == 0) { | |
494 | ret = kvm_irqchip_add_msi_route(kvm_state, msg); | |
495 | if (ret < 0) { | |
496 | return ret; | |
497 | } | |
498 | irqfd->virq = ret; | |
499 | } | |
500 | irqfd->users++; | |
7d37d351 JK |
501 | return 0; |
502 | } | |
503 | ||
504 | static void kvm_virtio_pci_vq_vector_release(VirtIOPCIProxy *proxy, | |
7d37d351 | 505 | unsigned int vector) |
774345f9 MT |
506 | { |
507 | VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector]; | |
508 | if (--irqfd->users == 0) { | |
509 | kvm_irqchip_release_virq(kvm_state, irqfd->virq); | |
510 | } | |
511 | } | |
512 | ||
f1d0f15a MT |
513 | static int kvm_virtio_pci_irqfd_use(VirtIOPCIProxy *proxy, |
514 | unsigned int queue_no, | |
515 | unsigned int vector) | |
516 | { | |
517 | VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector]; | |
518 | VirtQueue *vq = virtio_get_queue(proxy->vdev, queue_no); | |
519 | EventNotifier *n = virtio_queue_get_guest_notifier(vq); | |
520 | int ret; | |
521 | ret = kvm_irqchip_add_irqfd_notifier(kvm_state, n, irqfd->virq); | |
522 | return ret; | |
523 | } | |
524 | ||
525 | static void kvm_virtio_pci_irqfd_release(VirtIOPCIProxy *proxy, | |
526 | unsigned int queue_no, | |
527 | unsigned int vector) | |
7d37d351 JK |
528 | { |
529 | VirtQueue *vq = virtio_get_queue(proxy->vdev, queue_no); | |
15b2bd18 | 530 | EventNotifier *n = virtio_queue_get_guest_notifier(vq); |
7d37d351 | 531 | VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector]; |
15b2bd18 | 532 | int ret; |
7d37d351 | 533 | |
b131c74a | 534 | ret = kvm_irqchip_remove_irqfd_notifier(kvm_state, n, irqfd->virq); |
7d37d351 | 535 | assert(ret == 0); |
f1d0f15a | 536 | } |
7d37d351 | 537 | |
774345f9 MT |
538 | static int kvm_virtio_pci_vector_use(VirtIOPCIProxy *proxy, int nvqs) |
539 | { | |
540 | PCIDevice *dev = &proxy->pci_dev; | |
541 | VirtIODevice *vdev = proxy->vdev; | |
542 | unsigned int vector; | |
543 | int ret, queue_no; | |
544 | MSIMessage msg; | |
545 | ||
546 | for (queue_no = 0; queue_no < nvqs; queue_no++) { | |
547 | if (!virtio_queue_get_num(vdev, queue_no)) { | |
548 | break; | |
549 | } | |
550 | vector = virtio_queue_vector(vdev, queue_no); | |
551 | if (vector >= msix_nr_vectors_allocated(dev)) { | |
552 | continue; | |
553 | } | |
554 | msg = msix_get_message(dev, vector); | |
555 | ret = kvm_virtio_pci_vq_vector_use(proxy, queue_no, vector, msg); | |
556 | if (ret < 0) { | |
557 | goto undo; | |
7d37d351 | 558 | } |
f1d0f15a MT |
559 | /* If guest supports masking, set up irqfd now. |
560 | * Otherwise, delay until unmasked in the frontend. | |
561 | */ | |
562 | if (proxy->vdev->guest_notifier_mask) { | |
563 | ret = kvm_virtio_pci_irqfd_use(proxy, queue_no, vector); | |
564 | if (ret < 0) { | |
565 | kvm_virtio_pci_vq_vector_release(proxy, vector); | |
566 | goto undo; | |
567 | } | |
568 | } | |
7d37d351 | 569 | } |
7d37d351 | 570 | return 0; |
774345f9 MT |
571 | |
572 | undo: | |
573 | while (--queue_no >= 0) { | |
574 | vector = virtio_queue_vector(vdev, queue_no); | |
575 | if (vector >= msix_nr_vectors_allocated(dev)) { | |
576 | continue; | |
577 | } | |
f1d0f15a | 578 | if (proxy->vdev->guest_notifier_mask) { |
e387f99e | 579 | kvm_virtio_pci_irqfd_release(proxy, queue_no, vector); |
f1d0f15a | 580 | } |
774345f9 MT |
581 | kvm_virtio_pci_vq_vector_release(proxy, vector); |
582 | } | |
583 | return ret; | |
7d37d351 JK |
584 | } |
585 | ||
774345f9 MT |
586 | static void kvm_virtio_pci_vector_release(VirtIOPCIProxy *proxy, int nvqs) |
587 | { | |
588 | PCIDevice *dev = &proxy->pci_dev; | |
589 | VirtIODevice *vdev = proxy->vdev; | |
590 | unsigned int vector; | |
591 | int queue_no; | |
592 | ||
593 | for (queue_no = 0; queue_no < nvqs; queue_no++) { | |
594 | if (!virtio_queue_get_num(vdev, queue_no)) { | |
595 | break; | |
596 | } | |
597 | vector = virtio_queue_vector(vdev, queue_no); | |
598 | if (vector >= msix_nr_vectors_allocated(dev)) { | |
599 | continue; | |
600 | } | |
f1d0f15a MT |
601 | /* If guest supports masking, clean up irqfd now. |
602 | * Otherwise, it was cleaned when masked in the frontend. | |
603 | */ | |
604 | if (proxy->vdev->guest_notifier_mask) { | |
e387f99e | 605 | kvm_virtio_pci_irqfd_release(proxy, queue_no, vector); |
f1d0f15a | 606 | } |
774345f9 MT |
607 | kvm_virtio_pci_vq_vector_release(proxy, vector); |
608 | } | |
609 | } | |
610 | ||
611 | static int kvm_virtio_pci_vq_vector_unmask(VirtIOPCIProxy *proxy, | |
612 | unsigned int queue_no, | |
613 | unsigned int vector, | |
614 | MSIMessage msg) | |
615 | { | |
616 | VirtQueue *vq = virtio_get_queue(proxy->vdev, queue_no); | |
617 | EventNotifier *n = virtio_queue_get_guest_notifier(vq); | |
618 | VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector]; | |
53510bfc | 619 | int ret = 0; |
774345f9 MT |
620 | |
621 | if (irqfd->msg.data != msg.data || irqfd->msg.address != msg.address) { | |
622 | ret = kvm_irqchip_update_msi_route(kvm_state, irqfd->virq, msg); | |
623 | if (ret < 0) { | |
624 | return ret; | |
625 | } | |
626 | } | |
627 | ||
f1d0f15a MT |
628 | /* If guest supports masking, irqfd is already setup, unmask it. |
629 | * Otherwise, set it up now. | |
630 | */ | |
631 | if (proxy->vdev->guest_notifier_mask) { | |
632 | proxy->vdev->guest_notifier_mask(proxy->vdev, queue_no, false); | |
633 | /* Test after unmasking to avoid losing events. */ | |
634 | if (proxy->vdev->guest_notifier_pending && | |
635 | proxy->vdev->guest_notifier_pending(proxy->vdev, queue_no)) { | |
636 | event_notifier_set(n); | |
637 | } | |
638 | } else { | |
639 | ret = kvm_virtio_pci_irqfd_use(proxy, queue_no, vector); | |
7d37d351 | 640 | } |
774345f9 | 641 | return ret; |
7d37d351 JK |
642 | } |
643 | ||
774345f9 | 644 | static void kvm_virtio_pci_vq_vector_mask(VirtIOPCIProxy *proxy, |
7d37d351 JK |
645 | unsigned int queue_no, |
646 | unsigned int vector) | |
647 | { | |
f1d0f15a MT |
648 | /* If guest supports masking, keep irqfd but mask it. |
649 | * Otherwise, clean it up now. | |
650 | */ | |
651 | if (proxy->vdev->guest_notifier_mask) { | |
652 | proxy->vdev->guest_notifier_mask(proxy->vdev, queue_no, true); | |
653 | } else { | |
e387f99e | 654 | kvm_virtio_pci_irqfd_release(proxy, queue_no, vector); |
f1d0f15a | 655 | } |
7d37d351 JK |
656 | } |
657 | ||
774345f9 | 658 | static int kvm_virtio_pci_vector_unmask(PCIDevice *dev, unsigned vector, |
7d37d351 JK |
659 | MSIMessage msg) |
660 | { | |
661 | VirtIOPCIProxy *proxy = container_of(dev, VirtIOPCIProxy, pci_dev); | |
662 | VirtIODevice *vdev = proxy->vdev; | |
663 | int ret, queue_no; | |
664 | ||
2d620f59 | 665 | for (queue_no = 0; queue_no < proxy->nvqs_with_notifiers; queue_no++) { |
7d37d351 JK |
666 | if (!virtio_queue_get_num(vdev, queue_no)) { |
667 | break; | |
668 | } | |
669 | if (virtio_queue_vector(vdev, queue_no) != vector) { | |
670 | continue; | |
671 | } | |
774345f9 | 672 | ret = kvm_virtio_pci_vq_vector_unmask(proxy, queue_no, vector, msg); |
7d37d351 JK |
673 | if (ret < 0) { |
674 | goto undo; | |
675 | } | |
676 | } | |
677 | return 0; | |
678 | ||
679 | undo: | |
680 | while (--queue_no >= 0) { | |
681 | if (virtio_queue_vector(vdev, queue_no) != vector) { | |
682 | continue; | |
683 | } | |
774345f9 | 684 | kvm_virtio_pci_vq_vector_mask(proxy, queue_no, vector); |
7d37d351 JK |
685 | } |
686 | return ret; | |
687 | } | |
688 | ||
774345f9 | 689 | static void kvm_virtio_pci_vector_mask(PCIDevice *dev, unsigned vector) |
7d37d351 JK |
690 | { |
691 | VirtIOPCIProxy *proxy = container_of(dev, VirtIOPCIProxy, pci_dev); | |
692 | VirtIODevice *vdev = proxy->vdev; | |
693 | int queue_no; | |
694 | ||
2d620f59 | 695 | for (queue_no = 0; queue_no < proxy->nvqs_with_notifiers; queue_no++) { |
7d37d351 JK |
696 | if (!virtio_queue_get_num(vdev, queue_no)) { |
697 | break; | |
698 | } | |
699 | if (virtio_queue_vector(vdev, queue_no) != vector) { | |
700 | continue; | |
701 | } | |
774345f9 | 702 | kvm_virtio_pci_vq_vector_mask(proxy, queue_no, vector); |
7d37d351 JK |
703 | } |
704 | } | |
705 | ||
89d62be9 MT |
706 | static void kvm_virtio_pci_vector_poll(PCIDevice *dev, |
707 | unsigned int vector_start, | |
708 | unsigned int vector_end) | |
709 | { | |
710 | VirtIOPCIProxy *proxy = container_of(dev, VirtIOPCIProxy, pci_dev); | |
711 | VirtIODevice *vdev = proxy->vdev; | |
712 | int queue_no; | |
713 | unsigned int vector; | |
714 | EventNotifier *notifier; | |
715 | VirtQueue *vq; | |
716 | ||
2d620f59 | 717 | for (queue_no = 0; queue_no < proxy->nvqs_with_notifiers; queue_no++) { |
89d62be9 MT |
718 | if (!virtio_queue_get_num(vdev, queue_no)) { |
719 | break; | |
720 | } | |
721 | vector = virtio_queue_vector(vdev, queue_no); | |
722 | if (vector < vector_start || vector >= vector_end || | |
723 | !msix_is_masked(dev, vector)) { | |
724 | continue; | |
725 | } | |
726 | vq = virtio_get_queue(vdev, queue_no); | |
727 | notifier = virtio_queue_get_guest_notifier(vq); | |
f1d0f15a MT |
728 | if (vdev->guest_notifier_pending) { |
729 | if (vdev->guest_notifier_pending(vdev, queue_no)) { | |
730 | msix_set_pending(dev, vector); | |
731 | } | |
732 | } else if (event_notifier_test_and_clear(notifier)) { | |
89d62be9 MT |
733 | msix_set_pending(dev, vector); |
734 | } | |
735 | } | |
736 | } | |
737 | ||
738 | static int virtio_pci_set_guest_notifier(DeviceState *d, int n, bool assign, | |
739 | bool with_irqfd) | |
ade80dc8 | 740 | { |
d2a0ccc6 | 741 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
ade80dc8 MT |
742 | VirtQueue *vq = virtio_get_queue(proxy->vdev, n); |
743 | EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); | |
744 | ||
745 | if (assign) { | |
746 | int r = event_notifier_init(notifier, 0); | |
747 | if (r < 0) { | |
748 | return r; | |
749 | } | |
89d62be9 | 750 | virtio_queue_set_guest_notifier_fd_handler(vq, true, with_irqfd); |
ade80dc8 | 751 | } else { |
89d62be9 | 752 | virtio_queue_set_guest_notifier_fd_handler(vq, false, with_irqfd); |
ade80dc8 MT |
753 | event_notifier_cleanup(notifier); |
754 | } | |
755 | ||
756 | return 0; | |
757 | } | |
758 | ||
d2a0ccc6 | 759 | static bool virtio_pci_query_guest_notifiers(DeviceState *d) |
5430a28f | 760 | { |
d2a0ccc6 | 761 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
5430a28f MT |
762 | return msix_enabled(&proxy->pci_dev); |
763 | } | |
764 | ||
2d620f59 | 765 | static int virtio_pci_set_guest_notifiers(DeviceState *d, int nvqs, bool assign) |
54dd9321 | 766 | { |
d2a0ccc6 | 767 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
54dd9321 MT |
768 | VirtIODevice *vdev = proxy->vdev; |
769 | int r, n; | |
89d62be9 MT |
770 | bool with_irqfd = msix_enabled(&proxy->pci_dev) && |
771 | kvm_msi_via_irqfd_enabled(); | |
54dd9321 | 772 | |
2d620f59 MT |
773 | nvqs = MIN(nvqs, VIRTIO_PCI_QUEUE_MAX); |
774 | ||
775 | /* When deassigning, pass a consistent nvqs value | |
776 | * to avoid leaking notifiers. | |
777 | */ | |
778 | assert(assign || nvqs == proxy->nvqs_with_notifiers); | |
779 | ||
780 | proxy->nvqs_with_notifiers = nvqs; | |
781 | ||
7d37d351 | 782 | /* Must unset vector notifier while guest notifier is still assigned */ |
89d62be9 | 783 | if (proxy->vector_irqfd && !assign) { |
7d37d351 | 784 | msix_unset_vector_notifiers(&proxy->pci_dev); |
774345f9 | 785 | kvm_virtio_pci_vector_release(proxy, nvqs); |
7d37d351 JK |
786 | g_free(proxy->vector_irqfd); |
787 | proxy->vector_irqfd = NULL; | |
788 | } | |
789 | ||
2d620f59 | 790 | for (n = 0; n < nvqs; n++) { |
54dd9321 MT |
791 | if (!virtio_queue_get_num(vdev, n)) { |
792 | break; | |
793 | } | |
794 | ||
89d62be9 MT |
795 | r = virtio_pci_set_guest_notifier(d, n, assign, |
796 | kvm_msi_via_irqfd_enabled()); | |
54dd9321 MT |
797 | if (r < 0) { |
798 | goto assign_error; | |
799 | } | |
800 | } | |
801 | ||
7d37d351 | 802 | /* Must set vector notifier after guest notifier has been assigned */ |
89d62be9 | 803 | if (with_irqfd && assign) { |
7d37d351 JK |
804 | proxy->vector_irqfd = |
805 | g_malloc0(sizeof(*proxy->vector_irqfd) * | |
806 | msix_nr_vectors_allocated(&proxy->pci_dev)); | |
774345f9 MT |
807 | r = kvm_virtio_pci_vector_use(proxy, nvqs); |
808 | if (r < 0) { | |
809 | goto assign_error; | |
810 | } | |
7d37d351 | 811 | r = msix_set_vector_notifiers(&proxy->pci_dev, |
774345f9 MT |
812 | kvm_virtio_pci_vector_unmask, |
813 | kvm_virtio_pci_vector_mask, | |
89d62be9 | 814 | kvm_virtio_pci_vector_poll); |
7d37d351 | 815 | if (r < 0) { |
774345f9 | 816 | goto notifiers_error; |
7d37d351 JK |
817 | } |
818 | } | |
819 | ||
54dd9321 MT |
820 | return 0; |
821 | ||
774345f9 MT |
822 | notifiers_error: |
823 | assert(assign); | |
824 | kvm_virtio_pci_vector_release(proxy, nvqs); | |
825 | ||
54dd9321 MT |
826 | assign_error: |
827 | /* We get here on assignment failure. Recover by undoing for VQs 0 .. n. */ | |
7d37d351 | 828 | assert(assign); |
54dd9321 | 829 | while (--n >= 0) { |
89d62be9 | 830 | virtio_pci_set_guest_notifier(d, n, !assign, with_irqfd); |
54dd9321 MT |
831 | } |
832 | return r; | |
833 | } | |
834 | ||
d2a0ccc6 | 835 | static int virtio_pci_set_host_notifier(DeviceState *d, int n, bool assign) |
ade80dc8 | 836 | { |
d2a0ccc6 | 837 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
25db9ebe SH |
838 | |
839 | /* Stop using ioeventfd for virtqueue kick if the device starts using host | |
840 | * notifiers. This makes it easy to avoid stepping on each others' toes. | |
841 | */ | |
842 | proxy->ioeventfd_disabled = assign; | |
ade80dc8 | 843 | if (assign) { |
25db9ebe SH |
844 | virtio_pci_stop_ioeventfd(proxy); |
845 | } | |
846 | /* We don't need to start here: it's not needed because backend | |
847 | * currently only stops on status change away from ok, | |
848 | * reset, vmstop and such. If we do add code to start here, | |
849 | * need to check vmstate, device state etc. */ | |
26b9b5fe | 850 | return virtio_pci_set_host_notifier_internal(proxy, n, assign, false); |
25db9ebe SH |
851 | } |
852 | ||
d2a0ccc6 | 853 | static void virtio_pci_vmstate_change(DeviceState *d, bool running) |
25db9ebe | 854 | { |
d2a0ccc6 | 855 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
25db9ebe SH |
856 | |
857 | if (running) { | |
89c473fd MT |
858 | /* Try to find out if the guest has bus master disabled, but is |
859 | in ready state. Then we have a buggy guest OS. */ | |
860 | if ((proxy->vdev->status & VIRTIO_CONFIG_S_DRIVER_OK) && | |
861 | !(proxy->pci_dev.config[PCI_COMMAND] & PCI_COMMAND_MASTER)) { | |
862 | proxy->flags |= VIRTIO_PCI_FLAG_BUS_MASTER_BUG; | |
863 | } | |
25db9ebe | 864 | virtio_pci_start_ioeventfd(proxy); |
ade80dc8 | 865 | } else { |
25db9ebe | 866 | virtio_pci_stop_ioeventfd(proxy); |
ade80dc8 | 867 | } |
ade80dc8 MT |
868 | } |
869 | ||
53c25cea | 870 | static const VirtIOBindings virtio_pci_bindings = { |
ff24bd58 MT |
871 | .notify = virtio_pci_notify, |
872 | .save_config = virtio_pci_save_config, | |
873 | .load_config = virtio_pci_load_config, | |
874 | .save_queue = virtio_pci_save_queue, | |
875 | .load_queue = virtio_pci_load_queue, | |
6d74ca5a | 876 | .get_features = virtio_pci_get_features, |
5430a28f | 877 | .query_guest_notifiers = virtio_pci_query_guest_notifiers, |
ade80dc8 | 878 | .set_host_notifier = virtio_pci_set_host_notifier, |
54dd9321 | 879 | .set_guest_notifiers = virtio_pci_set_guest_notifiers, |
25db9ebe | 880 | .vmstate_change = virtio_pci_vmstate_change, |
53c25cea PB |
881 | }; |
882 | ||
befeac45 | 883 | void virtio_init_pci(VirtIOPCIProxy *proxy, VirtIODevice *vdev) |
53c25cea PB |
884 | { |
885 | uint8_t *config; | |
886 | uint32_t size; | |
887 | ||
888 | proxy->vdev = vdev; | |
889 | ||
890 | config = proxy->pci_dev.config; | |
53c25cea | 891 | |
e75ccf2c IY |
892 | if (proxy->class_code) { |
893 | pci_config_set_class(config, proxy->class_code); | |
894 | } | |
ad3d11e6 HKR |
895 | pci_set_word(config + PCI_SUBSYSTEM_VENDOR_ID, |
896 | pci_get_word(config + PCI_VENDOR_ID)); | |
897 | pci_set_word(config + PCI_SUBSYSTEM_ID, vdev->device_id); | |
898 | config[PCI_INTERRUPT_PIN] = 1; | |
53c25cea | 899 | |
b2357c48 AW |
900 | if (vdev->nvectors && |
901 | msix_init_exclusive_bar(&proxy->pci_dev, vdev->nvectors, 1)) { | |
aba800a3 | 902 | vdev->nvectors = 0; |
b2357c48 | 903 | } |
aba800a3 | 904 | |
ed757e14 YV |
905 | proxy->pci_dev.config_write = virtio_write_config; |
906 | ||
aba800a3 | 907 | size = VIRTIO_PCI_REGION_SIZE(&proxy->pci_dev) + vdev->config_len; |
53c25cea PB |
908 | if (size & (size-1)) |
909 | size = 1 << qemu_fls(size); | |
910 | ||
da146d0a AK |
911 | memory_region_init_io(&proxy->bar, &virtio_pci_config_ops, proxy, |
912 | "virtio-pci", size); | |
e824b2cc AK |
913 | pci_register_bar(&proxy->pci_dev, 0, PCI_BASE_ADDRESS_SPACE_IO, |
914 | &proxy->bar); | |
53c25cea | 915 | |
25db9ebe SH |
916 | if (!kvm_has_many_ioeventfds()) { |
917 | proxy->flags &= ~VIRTIO_PCI_FLAG_USE_IOEVENTFD; | |
918 | } | |
919 | ||
d2a0ccc6 | 920 | virtio_bind_device(vdev, &virtio_pci_bindings, DEVICE(proxy)); |
8172539d MT |
921 | proxy->host_features |= 0x1 << VIRTIO_F_NOTIFY_ON_EMPTY; |
922 | proxy->host_features |= 0x1 << VIRTIO_F_BAD_FEATURE; | |
923 | proxy->host_features = vdev->get_features(vdev, proxy->host_features); | |
53c25cea PB |
924 | } |
925 | ||
81a322d4 | 926 | static int virtio_blk_init_pci(PCIDevice *pci_dev) |
53c25cea PB |
927 | { |
928 | VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev); | |
929 | VirtIODevice *vdev; | |
930 | ||
ab73ff29 GH |
931 | if (proxy->class_code != PCI_CLASS_STORAGE_SCSI && |
932 | proxy->class_code != PCI_CLASS_STORAGE_OTHER) | |
933 | proxy->class_code = PCI_CLASS_STORAGE_SCSI; | |
53c25cea | 934 | |
12c5674b | 935 | vdev = virtio_blk_init(&pci_dev->qdev, &proxy->blk); |
ac0c14d7 MA |
936 | if (!vdev) { |
937 | return -1; | |
938 | } | |
177539e0 | 939 | vdev->nvectors = proxy->nvectors; |
e75ccf2c | 940 | virtio_init_pci(proxy, vdev); |
177539e0 GH |
941 | /* make the actual value visible */ |
942 | proxy->nvectors = vdev->nvectors; | |
81a322d4 | 943 | return 0; |
21d58b57 MM |
944 | } |
945 | ||
f90c2bcd | 946 | static void virtio_exit_pci(PCIDevice *pci_dev) |
0f457d91 | 947 | { |
da146d0a AK |
948 | VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev); |
949 | ||
950 | memory_region_destroy(&proxy->bar); | |
b2357c48 | 951 | msix_uninit_exclusive_bar(pci_dev); |
0f457d91 MT |
952 | } |
953 | ||
f90c2bcd | 954 | static void virtio_blk_exit_pci(PCIDevice *pci_dev) |
56a14938 GH |
955 | { |
956 | VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev); | |
957 | ||
25db9ebe | 958 | virtio_pci_stop_ioeventfd(proxy); |
9d0d3138 | 959 | virtio_blk_exit(proxy->vdev); |
f90c2bcd | 960 | virtio_exit_pci(pci_dev); |
56a14938 GH |
961 | } |
962 | ||
98b19252 | 963 | static int virtio_serial_init_pci(PCIDevice *pci_dev) |
21d58b57 | 964 | { |
d6beee99 | 965 | VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev); |
85c2c735 MM |
966 | VirtIODevice *vdev; |
967 | ||
d6beee99 GH |
968 | if (proxy->class_code != PCI_CLASS_COMMUNICATION_OTHER && |
969 | proxy->class_code != PCI_CLASS_DISPLAY_OTHER && /* qemu 0.10 */ | |
970 | proxy->class_code != PCI_CLASS_OTHERS) /* qemu-kvm */ | |
971 | proxy->class_code = PCI_CLASS_COMMUNICATION_OTHER; | |
972 | ||
6b331efb | 973 | vdev = virtio_serial_init(&pci_dev->qdev, &proxy->serial); |
25fe3654 AS |
974 | if (!vdev) { |
975 | return -1; | |
976 | } | |
573fb60c | 977 | vdev->nvectors = proxy->nvectors == DEV_NVECTORS_UNSPECIFIED |
6b331efb | 978 | ? proxy->serial.max_virtserial_ports + 1 |
573fb60c | 979 | : proxy->nvectors; |
e75ccf2c | 980 | virtio_init_pci(proxy, vdev); |
a1829205 | 981 | proxy->nvectors = vdev->nvectors; |
81a322d4 | 982 | return 0; |
53c25cea PB |
983 | } |
984 | ||
f90c2bcd | 985 | static void virtio_serial_exit_pci(PCIDevice *pci_dev) |
8b53a865 AS |
986 | { |
987 | VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev); | |
988 | ||
32059220 | 989 | virtio_pci_stop_ioeventfd(proxy); |
8b53a865 | 990 | virtio_serial_exit(proxy->vdev); |
f90c2bcd | 991 | virtio_exit_pci(pci_dev); |
8b53a865 AS |
992 | } |
993 | ||
81a322d4 | 994 | static int virtio_net_init_pci(PCIDevice *pci_dev) |
53c25cea PB |
995 | { |
996 | VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev); | |
997 | VirtIODevice *vdev; | |
998 | ||
f0c07c7c | 999 | vdev = virtio_net_init(&pci_dev->qdev, &proxy->nic, &proxy->net); |
a1e0fea5 | 1000 | |
97b15621 | 1001 | vdev->nvectors = proxy->nvectors; |
e75ccf2c | 1002 | virtio_init_pci(proxy, vdev); |
a1e0fea5 GH |
1003 | |
1004 | /* make the actual value visible */ | |
1005 | proxy->nvectors = vdev->nvectors; | |
81a322d4 | 1006 | return 0; |
53c25cea PB |
1007 | } |
1008 | ||
f90c2bcd | 1009 | static void virtio_net_exit_pci(PCIDevice *pci_dev) |
97b15621 GH |
1010 | { |
1011 | VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev); | |
1012 | ||
25db9ebe | 1013 | virtio_pci_stop_ioeventfd(proxy); |
97b15621 | 1014 | virtio_net_exit(proxy->vdev); |
f90c2bcd | 1015 | virtio_exit_pci(pci_dev); |
97b15621 GH |
1016 | } |
1017 | ||
81a322d4 | 1018 | static int virtio_balloon_init_pci(PCIDevice *pci_dev) |
53c25cea PB |
1019 | { |
1020 | VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev); | |
1021 | VirtIODevice *vdev; | |
1022 | ||
2ba1d381 DG |
1023 | if (proxy->class_code != PCI_CLASS_OTHERS && |
1024 | proxy->class_code != PCI_CLASS_MEMORY_RAM) { /* qemu < 1.1 */ | |
1025 | proxy->class_code = PCI_CLASS_OTHERS; | |
1026 | } | |
1027 | ||
53c25cea | 1028 | vdev = virtio_balloon_init(&pci_dev->qdev); |
f76f6655 AS |
1029 | if (!vdev) { |
1030 | return -1; | |
1031 | } | |
e75ccf2c | 1032 | virtio_init_pci(proxy, vdev); |
81a322d4 | 1033 | return 0; |
53c25cea PB |
1034 | } |
1035 | ||
f90c2bcd | 1036 | static void virtio_balloon_exit_pci(PCIDevice *pci_dev) |
855d7e25 AS |
1037 | { |
1038 | VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev); | |
1039 | ||
1040 | virtio_pci_stop_ioeventfd(proxy); | |
1041 | virtio_balloon_exit(proxy->vdev); | |
f90c2bcd | 1042 | virtio_exit_pci(pci_dev); |
855d7e25 AS |
1043 | } |
1044 | ||
16c915ba AS |
1045 | static int virtio_rng_init_pci(PCIDevice *pci_dev) |
1046 | { | |
1047 | VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev); | |
1048 | VirtIODevice *vdev; | |
1049 | ||
500054f1 AL |
1050 | if (proxy->rng.rng == NULL) { |
1051 | proxy->rng.default_backend = RNG_RANDOM(object_new(TYPE_RNG_RANDOM)); | |
1052 | ||
1053 | object_property_add_child(OBJECT(pci_dev), | |
1054 | "default-backend", | |
1055 | OBJECT(proxy->rng.default_backend), | |
1056 | NULL); | |
1057 | ||
1058 | object_property_set_link(OBJECT(pci_dev), | |
1059 | OBJECT(proxy->rng.default_backend), | |
1060 | "rng", NULL); | |
1061 | } | |
1062 | ||
16c915ba AS |
1063 | vdev = virtio_rng_init(&pci_dev->qdev, &proxy->rng); |
1064 | if (!vdev) { | |
1065 | return -1; | |
1066 | } | |
1067 | virtio_init_pci(proxy, vdev); | |
1068 | return 0; | |
1069 | } | |
1070 | ||
1071 | static void virtio_rng_exit_pci(PCIDevice *pci_dev) | |
1072 | { | |
1073 | VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev); | |
1074 | ||
1075 | virtio_pci_stop_ioeventfd(proxy); | |
1076 | virtio_rng_exit(proxy->vdev); | |
1077 | virtio_exit_pci(pci_dev); | |
1078 | } | |
1079 | ||
40021f08 AL |
1080 | static Property virtio_blk_properties[] = { |
1081 | DEFINE_PROP_HEX32("class", VirtIOPCIProxy, class_code, 0), | |
12c5674b | 1082 | DEFINE_BLOCK_PROPERTIES(VirtIOPCIProxy, blk.conf), |
e63e7fde | 1083 | DEFINE_BLOCK_CHS_PROPERTIES(VirtIOPCIProxy, blk.conf), |
12c5674b | 1084 | DEFINE_PROP_STRING("serial", VirtIOPCIProxy, blk.serial), |
a6c5c84a PB |
1085 | #ifdef __linux__ |
1086 | DEFINE_PROP_BIT("scsi", VirtIOPCIProxy, blk.scsi, 0, true), | |
1087 | #endif | |
8a873ba7 | 1088 | DEFINE_PROP_BIT("config-wce", VirtIOPCIProxy, blk.config_wce, 0, true), |
40021f08 | 1089 | DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), |
392808b4 SH |
1090 | #ifdef CONFIG_VIRTIO_BLK_DATA_PLANE |
1091 | DEFINE_PROP_BIT("x-data-plane", VirtIOPCIProxy, blk.data_plane, 0, false), | |
1092 | #endif | |
40021f08 AL |
1093 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2), |
1094 | DEFINE_VIRTIO_BLK_FEATURES(VirtIOPCIProxy, host_features), | |
1095 | DEFINE_PROP_END_OF_LIST(), | |
e855761c AL |
1096 | }; |
1097 | ||
40021f08 AL |
1098 | static void virtio_blk_class_init(ObjectClass *klass, void *data) |
1099 | { | |
39bffca2 | 1100 | DeviceClass *dc = DEVICE_CLASS(klass); |
40021f08 AL |
1101 | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
1102 | ||
1103 | k->init = virtio_blk_init_pci; | |
1104 | k->exit = virtio_blk_exit_pci; | |
1105 | k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
1106 | k->device_id = PCI_DEVICE_ID_VIRTIO_BLOCK; | |
1107 | k->revision = VIRTIO_PCI_ABI_VERSION; | |
1108 | k->class_id = PCI_CLASS_STORAGE_SCSI; | |
39bffca2 AL |
1109 | dc->reset = virtio_pci_reset; |
1110 | dc->props = virtio_blk_properties; | |
40021f08 AL |
1111 | } |
1112 | ||
8c43a6f0 | 1113 | static const TypeInfo virtio_blk_info = { |
39bffca2 AL |
1114 | .name = "virtio-blk-pci", |
1115 | .parent = TYPE_PCI_DEVICE, | |
1116 | .instance_size = sizeof(VirtIOPCIProxy), | |
1117 | .class_init = virtio_blk_class_init, | |
40021f08 AL |
1118 | }; |
1119 | ||
1120 | static Property virtio_net_properties[] = { | |
1121 | DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, false), | |
1122 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 3), | |
1123 | DEFINE_VIRTIO_NET_FEATURES(VirtIOPCIProxy, host_features), | |
1124 | DEFINE_NIC_PROPERTIES(VirtIOPCIProxy, nic), | |
1125 | DEFINE_PROP_UINT32("x-txtimer", VirtIOPCIProxy, net.txtimer, TX_TIMER_INTERVAL), | |
1126 | DEFINE_PROP_INT32("x-txburst", VirtIOPCIProxy, net.txburst, TX_BURST), | |
1127 | DEFINE_PROP_STRING("tx", VirtIOPCIProxy, net.tx), | |
1128 | DEFINE_PROP_END_OF_LIST(), | |
1129 | }; | |
1130 | ||
1131 | static void virtio_net_class_init(ObjectClass *klass, void *data) | |
1132 | { | |
39bffca2 | 1133 | DeviceClass *dc = DEVICE_CLASS(klass); |
40021f08 AL |
1134 | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
1135 | ||
1136 | k->init = virtio_net_init_pci; | |
1137 | k->exit = virtio_net_exit_pci; | |
1138 | k->romfile = "pxe-virtio.rom"; | |
1139 | k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
1140 | k->device_id = PCI_DEVICE_ID_VIRTIO_NET; | |
1141 | k->revision = VIRTIO_PCI_ABI_VERSION; | |
1142 | k->class_id = PCI_CLASS_NETWORK_ETHERNET; | |
39bffca2 AL |
1143 | dc->reset = virtio_pci_reset; |
1144 | dc->props = virtio_net_properties; | |
40021f08 AL |
1145 | } |
1146 | ||
8c43a6f0 | 1147 | static const TypeInfo virtio_net_info = { |
39bffca2 AL |
1148 | .name = "virtio-net-pci", |
1149 | .parent = TYPE_PCI_DEVICE, | |
1150 | .instance_size = sizeof(VirtIOPCIProxy), | |
1151 | .class_init = virtio_net_class_init, | |
e855761c AL |
1152 | }; |
1153 | ||
40021f08 AL |
1154 | static Property virtio_serial_properties[] = { |
1155 | DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), | |
1156 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, DEV_NVECTORS_UNSPECIFIED), | |
1157 | DEFINE_PROP_HEX32("class", VirtIOPCIProxy, class_code, 0), | |
1158 | DEFINE_VIRTIO_COMMON_FEATURES(VirtIOPCIProxy, host_features), | |
1159 | DEFINE_PROP_UINT32("max_ports", VirtIOPCIProxy, serial.max_virtserial_ports, 31), | |
1160 | DEFINE_PROP_END_OF_LIST(), | |
e855761c AL |
1161 | }; |
1162 | ||
40021f08 AL |
1163 | static void virtio_serial_class_init(ObjectClass *klass, void *data) |
1164 | { | |
39bffca2 | 1165 | DeviceClass *dc = DEVICE_CLASS(klass); |
40021f08 AL |
1166 | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
1167 | ||
1168 | k->init = virtio_serial_init_pci; | |
1169 | k->exit = virtio_serial_exit_pci; | |
1170 | k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
1171 | k->device_id = PCI_DEVICE_ID_VIRTIO_CONSOLE; | |
1172 | k->revision = VIRTIO_PCI_ABI_VERSION; | |
1173 | k->class_id = PCI_CLASS_COMMUNICATION_OTHER; | |
39bffca2 AL |
1174 | dc->reset = virtio_pci_reset; |
1175 | dc->props = virtio_serial_properties; | |
40021f08 AL |
1176 | } |
1177 | ||
8c43a6f0 | 1178 | static const TypeInfo virtio_serial_info = { |
39bffca2 AL |
1179 | .name = "virtio-serial-pci", |
1180 | .parent = TYPE_PCI_DEVICE, | |
1181 | .instance_size = sizeof(VirtIOPCIProxy), | |
1182 | .class_init = virtio_serial_class_init, | |
40021f08 AL |
1183 | }; |
1184 | ||
1185 | static Property virtio_balloon_properties[] = { | |
1186 | DEFINE_VIRTIO_COMMON_FEATURES(VirtIOPCIProxy, host_features), | |
2ba1d381 | 1187 | DEFINE_PROP_HEX32("class", VirtIOPCIProxy, class_code, 0), |
40021f08 AL |
1188 | DEFINE_PROP_END_OF_LIST(), |
1189 | }; | |
1190 | ||
1191 | static void virtio_balloon_class_init(ObjectClass *klass, void *data) | |
1192 | { | |
39bffca2 | 1193 | DeviceClass *dc = DEVICE_CLASS(klass); |
40021f08 AL |
1194 | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
1195 | ||
1196 | k->init = virtio_balloon_init_pci; | |
1197 | k->exit = virtio_balloon_exit_pci; | |
1198 | k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
1199 | k->device_id = PCI_DEVICE_ID_VIRTIO_BALLOON; | |
1200 | k->revision = VIRTIO_PCI_ABI_VERSION; | |
2ba1d381 | 1201 | k->class_id = PCI_CLASS_OTHERS; |
39bffca2 AL |
1202 | dc->reset = virtio_pci_reset; |
1203 | dc->props = virtio_balloon_properties; | |
40021f08 AL |
1204 | } |
1205 | ||
8c43a6f0 | 1206 | static const TypeInfo virtio_balloon_info = { |
39bffca2 AL |
1207 | .name = "virtio-balloon-pci", |
1208 | .parent = TYPE_PCI_DEVICE, | |
1209 | .instance_size = sizeof(VirtIOPCIProxy), | |
1210 | .class_init = virtio_balloon_class_init, | |
0aab0d3a GH |
1211 | }; |
1212 | ||
16c915ba AS |
1213 | static void virtio_rng_initfn(Object *obj) |
1214 | { | |
1215 | PCIDevice *pci_dev = PCI_DEVICE(obj); | |
1216 | VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev); | |
1217 | ||
1218 | object_property_add_link(obj, "rng", TYPE_RNG_BACKEND, | |
1219 | (Object **)&proxy->rng.rng, NULL); | |
1220 | } | |
1221 | ||
1222 | static Property virtio_rng_properties[] = { | |
1223 | DEFINE_VIRTIO_COMMON_FEATURES(VirtIOPCIProxy, host_features), | |
904d6f58 AL |
1224 | /* Set a default rate limit of 2^47 bytes per minute or roughly 2TB/s. If |
1225 | you have an entropy source capable of generating more entropy than this | |
1226 | and you can pass it through via virtio-rng, then hats off to you. Until | |
1227 | then, this is unlimited for all practical purposes. | |
1228 | */ | |
1229 | DEFINE_PROP_UINT64("max-bytes", VirtIOPCIProxy, rng.max_bytes, INT64_MAX), | |
1230 | DEFINE_PROP_UINT32("period", VirtIOPCIProxy, rng.period_ms, 1 << 16), | |
16c915ba AS |
1231 | DEFINE_PROP_END_OF_LIST(), |
1232 | }; | |
1233 | ||
1234 | static void virtio_rng_class_init(ObjectClass *klass, void *data) | |
1235 | { | |
1236 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1237 | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); | |
1238 | ||
1239 | k->init = virtio_rng_init_pci; | |
1240 | k->exit = virtio_rng_exit_pci; | |
1241 | k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
1242 | k->device_id = PCI_DEVICE_ID_VIRTIO_RNG; | |
1243 | k->revision = VIRTIO_PCI_ABI_VERSION; | |
1244 | k->class_id = PCI_CLASS_OTHERS; | |
1245 | dc->reset = virtio_pci_reset; | |
1246 | dc->props = virtio_rng_properties; | |
1247 | } | |
1248 | ||
8c43a6f0 | 1249 | static const TypeInfo virtio_rng_info = { |
16c915ba AS |
1250 | .name = "virtio-rng-pci", |
1251 | .parent = TYPE_PCI_DEVICE, | |
1252 | .instance_size = sizeof(VirtIOPCIProxy), | |
1253 | .instance_init = virtio_rng_initfn, | |
1254 | .class_init = virtio_rng_class_init, | |
1255 | }; | |
1256 | ||
973abc7f SH |
1257 | static int virtio_scsi_init_pci(PCIDevice *pci_dev) |
1258 | { | |
1259 | VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev); | |
1260 | VirtIODevice *vdev; | |
1261 | ||
1262 | vdev = virtio_scsi_init(&pci_dev->qdev, &proxy->scsi); | |
1263 | if (!vdev) { | |
1264 | return -EINVAL; | |
1265 | } | |
1266 | ||
4c205d0c PB |
1267 | vdev->nvectors = proxy->nvectors == DEV_NVECTORS_UNSPECIFIED |
1268 | ? proxy->scsi.num_queues + 3 | |
1269 | : proxy->nvectors; | |
973abc7f SH |
1270 | virtio_init_pci(proxy, vdev); |
1271 | ||
1272 | /* make the actual value visible */ | |
1273 | proxy->nvectors = vdev->nvectors; | |
1274 | return 0; | |
1275 | } | |
1276 | ||
f90c2bcd | 1277 | static void virtio_scsi_exit_pci(PCIDevice *pci_dev) |
973abc7f SH |
1278 | { |
1279 | VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev); | |
1280 | ||
1281 | virtio_scsi_exit(proxy->vdev); | |
f90c2bcd | 1282 | virtio_exit_pci(pci_dev); |
973abc7f SH |
1283 | } |
1284 | ||
1285 | static Property virtio_scsi_properties[] = { | |
3f910904 | 1286 | DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), |
4c205d0c | 1287 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, DEV_NVECTORS_UNSPECIFIED), |
973abc7f SH |
1288 | DEFINE_VIRTIO_SCSI_PROPERTIES(VirtIOPCIProxy, host_features, scsi), |
1289 | DEFINE_PROP_END_OF_LIST(), | |
1290 | }; | |
1291 | ||
1292 | static void virtio_scsi_class_init(ObjectClass *klass, void *data) | |
1293 | { | |
1294 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1295 | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); | |
1296 | ||
1297 | k->init = virtio_scsi_init_pci; | |
1298 | k->exit = virtio_scsi_exit_pci; | |
1299 | k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
1300 | k->device_id = PCI_DEVICE_ID_VIRTIO_SCSI; | |
1301 | k->revision = 0x00; | |
1302 | k->class_id = PCI_CLASS_STORAGE_SCSI; | |
1303 | dc->reset = virtio_pci_reset; | |
1304 | dc->props = virtio_scsi_properties; | |
1305 | } | |
1306 | ||
8c43a6f0 | 1307 | static const TypeInfo virtio_scsi_info = { |
973abc7f SH |
1308 | .name = "virtio-scsi-pci", |
1309 | .parent = TYPE_PCI_DEVICE, | |
1310 | .instance_size = sizeof(VirtIOPCIProxy), | |
1311 | .class_init = virtio_scsi_class_init, | |
1312 | }; | |
1313 | ||
83f7d43a | 1314 | static void virtio_pci_register_types(void) |
53c25cea | 1315 | { |
39bffca2 | 1316 | type_register_static(&virtio_blk_info); |
39bffca2 | 1317 | type_register_static(&virtio_net_info); |
39bffca2 | 1318 | type_register_static(&virtio_serial_info); |
39bffca2 | 1319 | type_register_static(&virtio_balloon_info); |
973abc7f | 1320 | type_register_static(&virtio_scsi_info); |
16c915ba | 1321 | type_register_static(&virtio_rng_info); |
53c25cea PB |
1322 | } |
1323 | ||
83f7d43a | 1324 | type_init(virtio_pci_register_types) |