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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 | ||
18 | #include <inttypes.h> | |
19 | ||
0d09e41a PB |
20 | #include "hw/virtio/virtio.h" |
21 | #include "hw/virtio/virtio-blk.h" | |
22 | #include "hw/virtio/virtio-net.h" | |
23 | #include "hw/virtio/virtio-serial.h" | |
24 | #include "hw/virtio/virtio-scsi.h" | |
25 | #include "hw/virtio/virtio-balloon.h" | |
83c9f4ca | 26 | #include "hw/pci/pci.h" |
1de7afc9 | 27 | #include "qemu/error-report.h" |
83c9f4ca PB |
28 | #include "hw/pci/msi.h" |
29 | #include "hw/pci/msix.h" | |
30 | #include "hw/loader.h" | |
9c17d615 PB |
31 | #include "sysemu/kvm.h" |
32 | #include "sysemu/blockdev.h" | |
47b43a1f | 33 | #include "virtio-pci.h" |
1de7afc9 | 34 | #include "qemu/range.h" |
0d09e41a | 35 | #include "hw/virtio/virtio-bus.h" |
24a6e7f4 | 36 | #include "qapi/visitor.h" |
53c25cea PB |
37 | |
38 | /* from Linux's linux/virtio_pci.h */ | |
39 | ||
40 | /* A 32-bit r/o bitmask of the features supported by the host */ | |
41 | #define VIRTIO_PCI_HOST_FEATURES 0 | |
42 | ||
43 | /* A 32-bit r/w bitmask of features activated by the guest */ | |
44 | #define VIRTIO_PCI_GUEST_FEATURES 4 | |
45 | ||
46 | /* A 32-bit r/w PFN for the currently selected queue */ | |
47 | #define VIRTIO_PCI_QUEUE_PFN 8 | |
48 | ||
49 | /* A 16-bit r/o queue size for the currently selected queue */ | |
50 | #define VIRTIO_PCI_QUEUE_NUM 12 | |
51 | ||
52 | /* A 16-bit r/w queue selector */ | |
53 | #define VIRTIO_PCI_QUEUE_SEL 14 | |
54 | ||
55 | /* A 16-bit r/w queue notifier */ | |
56 | #define VIRTIO_PCI_QUEUE_NOTIFY 16 | |
57 | ||
58 | /* An 8-bit device status register. */ | |
59 | #define VIRTIO_PCI_STATUS 18 | |
60 | ||
61 | /* An 8-bit r/o interrupt status register. Reading the value will return the | |
62 | * current contents of the ISR and will also clear it. This is effectively | |
63 | * a read-and-acknowledge. */ | |
64 | #define VIRTIO_PCI_ISR 19 | |
65 | ||
aba800a3 MT |
66 | /* MSI-X registers: only enabled if MSI-X is enabled. */ |
67 | /* A 16-bit vector for configuration changes. */ | |
68 | #define VIRTIO_MSI_CONFIG_VECTOR 20 | |
69 | /* A 16-bit vector for selected queue notifications. */ | |
70 | #define VIRTIO_MSI_QUEUE_VECTOR 22 | |
71 | ||
72 | /* Config space size */ | |
73 | #define VIRTIO_PCI_CONFIG_NOMSI 20 | |
74 | #define VIRTIO_PCI_CONFIG_MSI 24 | |
75 | #define VIRTIO_PCI_REGION_SIZE(dev) (msix_present(dev) ? \ | |
76 | VIRTIO_PCI_CONFIG_MSI : \ | |
77 | VIRTIO_PCI_CONFIG_NOMSI) | |
78 | ||
79 | /* The remaining space is defined by each driver as the per-driver | |
80 | * configuration space */ | |
81 | #define VIRTIO_PCI_CONFIG(dev) (msix_enabled(dev) ? \ | |
82 | VIRTIO_PCI_CONFIG_MSI : \ | |
83 | VIRTIO_PCI_CONFIG_NOMSI) | |
53c25cea | 84 | |
53c25cea PB |
85 | /* How many bits to shift physical queue address written to QUEUE_PFN. |
86 | * 12 is historical, and due to x86 page size. */ | |
87 | #define VIRTIO_PCI_QUEUE_ADDR_SHIFT 12 | |
88 | ||
3dbca8e6 SH |
89 | /* Flags track per-device state like workarounds for quirks in older guests. */ |
90 | #define VIRTIO_PCI_FLAG_BUS_MASTER_BUG (1 << 0) | |
c81131db | 91 | |
8e4a424b BS |
92 | /* HACK for virtio to determine if it's running a big endian guest */ |
93 | bool virtio_is_big_endian(void); | |
94 | ||
d51fcfac FK |
95 | static void virtio_pci_bus_new(VirtioBusState *bus, VirtIOPCIProxy *dev); |
96 | ||
53c25cea | 97 | /* virtio device */ |
d2a0ccc6 MT |
98 | /* DeviceState to VirtIOPCIProxy. For use off data-path. TODO: use QOM. */ |
99 | static inline VirtIOPCIProxy *to_virtio_pci_proxy(DeviceState *d) | |
100 | { | |
101 | return container_of(d, VirtIOPCIProxy, pci_dev.qdev); | |
102 | } | |
53c25cea | 103 | |
d2a0ccc6 MT |
104 | /* DeviceState to VirtIOPCIProxy. Note: used on datapath, |
105 | * be careful and test performance if you change this. | |
106 | */ | |
107 | static inline VirtIOPCIProxy *to_virtio_pci_proxy_fast(DeviceState *d) | |
53c25cea | 108 | { |
d2a0ccc6 MT |
109 | return container_of(d, VirtIOPCIProxy, pci_dev.qdev); |
110 | } | |
111 | ||
112 | static void virtio_pci_notify(DeviceState *d, uint16_t vector) | |
113 | { | |
114 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy_fast(d); | |
aba800a3 MT |
115 | if (msix_enabled(&proxy->pci_dev)) |
116 | msix_notify(&proxy->pci_dev, vector); | |
117 | else | |
118 | qemu_set_irq(proxy->pci_dev.irq[0], proxy->vdev->isr & 1); | |
53c25cea PB |
119 | } |
120 | ||
d2a0ccc6 | 121 | static void virtio_pci_save_config(DeviceState *d, QEMUFile *f) |
ff24bd58 | 122 | { |
d2a0ccc6 | 123 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
ff24bd58 MT |
124 | pci_device_save(&proxy->pci_dev, f); |
125 | msix_save(&proxy->pci_dev, f); | |
126 | if (msix_present(&proxy->pci_dev)) | |
127 | qemu_put_be16(f, proxy->vdev->config_vector); | |
128 | } | |
129 | ||
d2a0ccc6 | 130 | static void virtio_pci_save_queue(DeviceState *d, int n, QEMUFile *f) |
ff24bd58 | 131 | { |
d2a0ccc6 | 132 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
ff24bd58 MT |
133 | if (msix_present(&proxy->pci_dev)) |
134 | qemu_put_be16(f, virtio_queue_vector(proxy->vdev, n)); | |
135 | } | |
136 | ||
d2a0ccc6 | 137 | static int virtio_pci_load_config(DeviceState *d, QEMUFile *f) |
ff24bd58 | 138 | { |
d2a0ccc6 | 139 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
ff24bd58 MT |
140 | int ret; |
141 | ret = pci_device_load(&proxy->pci_dev, f); | |
e6da7680 | 142 | if (ret) { |
ff24bd58 | 143 | return ret; |
e6da7680 | 144 | } |
3cac001e | 145 | msix_unuse_all_vectors(&proxy->pci_dev); |
ff24bd58 | 146 | msix_load(&proxy->pci_dev, f); |
e6da7680 | 147 | if (msix_present(&proxy->pci_dev)) { |
ff24bd58 | 148 | qemu_get_be16s(f, &proxy->vdev->config_vector); |
e6da7680 MT |
149 | } else { |
150 | proxy->vdev->config_vector = VIRTIO_NO_VECTOR; | |
151 | } | |
152 | if (proxy->vdev->config_vector != VIRTIO_NO_VECTOR) { | |
153 | return msix_vector_use(&proxy->pci_dev, proxy->vdev->config_vector); | |
154 | } | |
ff24bd58 MT |
155 | return 0; |
156 | } | |
157 | ||
d2a0ccc6 | 158 | static int virtio_pci_load_queue(DeviceState *d, int n, QEMUFile *f) |
ff24bd58 | 159 | { |
d2a0ccc6 | 160 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
ff24bd58 | 161 | uint16_t vector; |
e6da7680 MT |
162 | if (msix_present(&proxy->pci_dev)) { |
163 | qemu_get_be16s(f, &vector); | |
164 | } else { | |
165 | vector = VIRTIO_NO_VECTOR; | |
166 | } | |
ff24bd58 | 167 | virtio_queue_set_vector(proxy->vdev, n, vector); |
e6da7680 MT |
168 | if (vector != VIRTIO_NO_VECTOR) { |
169 | return msix_vector_use(&proxy->pci_dev, vector); | |
170 | } | |
ff24bd58 MT |
171 | return 0; |
172 | } | |
173 | ||
25db9ebe | 174 | static int virtio_pci_set_host_notifier_internal(VirtIOPCIProxy *proxy, |
26b9b5fe | 175 | int n, bool assign, bool set_handler) |
25db9ebe SH |
176 | { |
177 | VirtQueue *vq = virtio_get_queue(proxy->vdev, n); | |
178 | EventNotifier *notifier = virtio_queue_get_host_notifier(vq); | |
da146d0a AK |
179 | int r = 0; |
180 | ||
25db9ebe SH |
181 | if (assign) { |
182 | r = event_notifier_init(notifier, 1); | |
183 | if (r < 0) { | |
b36e3914 MT |
184 | error_report("%s: unable to init event notifier: %d", |
185 | __func__, r); | |
25db9ebe SH |
186 | return r; |
187 | } | |
26b9b5fe | 188 | virtio_queue_set_host_notifier_fd_handler(vq, true, set_handler); |
da146d0a | 189 | memory_region_add_eventfd(&proxy->bar, VIRTIO_PCI_QUEUE_NOTIFY, 2, |
753d5e14 | 190 | true, n, notifier); |
25db9ebe | 191 | } else { |
da146d0a | 192 | memory_region_del_eventfd(&proxy->bar, VIRTIO_PCI_QUEUE_NOTIFY, 2, |
753d5e14 | 193 | true, n, notifier); |
26b9b5fe | 194 | virtio_queue_set_host_notifier_fd_handler(vq, false, false); |
25db9ebe SH |
195 | event_notifier_cleanup(notifier); |
196 | } | |
197 | return r; | |
198 | } | |
199 | ||
b36e3914 | 200 | static void virtio_pci_start_ioeventfd(VirtIOPCIProxy *proxy) |
25db9ebe SH |
201 | { |
202 | int n, r; | |
203 | ||
204 | if (!(proxy->flags & VIRTIO_PCI_FLAG_USE_IOEVENTFD) || | |
205 | proxy->ioeventfd_disabled || | |
206 | proxy->ioeventfd_started) { | |
b36e3914 | 207 | return; |
25db9ebe SH |
208 | } |
209 | ||
210 | for (n = 0; n < VIRTIO_PCI_QUEUE_MAX; n++) { | |
211 | if (!virtio_queue_get_num(proxy->vdev, n)) { | |
212 | continue; | |
213 | } | |
214 | ||
26b9b5fe | 215 | r = virtio_pci_set_host_notifier_internal(proxy, n, true, true); |
25db9ebe SH |
216 | if (r < 0) { |
217 | goto assign_error; | |
218 | } | |
25db9ebe SH |
219 | } |
220 | proxy->ioeventfd_started = true; | |
b36e3914 | 221 | return; |
25db9ebe SH |
222 | |
223 | assign_error: | |
224 | while (--n >= 0) { | |
225 | if (!virtio_queue_get_num(proxy->vdev, n)) { | |
226 | continue; | |
227 | } | |
228 | ||
26b9b5fe | 229 | r = virtio_pci_set_host_notifier_internal(proxy, n, false, false); |
b36e3914 | 230 | assert(r >= 0); |
25db9ebe SH |
231 | } |
232 | proxy->ioeventfd_started = false; | |
b36e3914 | 233 | error_report("%s: failed. Fallback to a userspace (slower).", __func__); |
25db9ebe SH |
234 | } |
235 | ||
b36e3914 | 236 | static void virtio_pci_stop_ioeventfd(VirtIOPCIProxy *proxy) |
25db9ebe | 237 | { |
b36e3914 | 238 | int r; |
25db9ebe SH |
239 | int n; |
240 | ||
241 | if (!proxy->ioeventfd_started) { | |
b36e3914 | 242 | return; |
25db9ebe SH |
243 | } |
244 | ||
245 | for (n = 0; n < VIRTIO_PCI_QUEUE_MAX; n++) { | |
246 | if (!virtio_queue_get_num(proxy->vdev, n)) { | |
247 | continue; | |
248 | } | |
249 | ||
26b9b5fe | 250 | r = virtio_pci_set_host_notifier_internal(proxy, n, false, false); |
b36e3914 | 251 | assert(r >= 0); |
25db9ebe SH |
252 | } |
253 | proxy->ioeventfd_started = false; | |
25db9ebe SH |
254 | } |
255 | ||
53c25cea PB |
256 | static void virtio_ioport_write(void *opaque, uint32_t addr, uint32_t val) |
257 | { | |
258 | VirtIOPCIProxy *proxy = opaque; | |
259 | VirtIODevice *vdev = proxy->vdev; | |
a8170e5e | 260 | hwaddr pa; |
53c25cea | 261 | |
53c25cea PB |
262 | switch (addr) { |
263 | case VIRTIO_PCI_GUEST_FEATURES: | |
181103cd FK |
264 | /* Guest does not negotiate properly? We have to assume nothing. */ |
265 | if (val & (1 << VIRTIO_F_BAD_FEATURE)) { | |
266 | val = virtio_bus_get_vdev_bad_features(&proxy->bus); | |
267 | } | |
ad0c9332 | 268 | virtio_set_features(vdev, val); |
53c25cea PB |
269 | break; |
270 | case VIRTIO_PCI_QUEUE_PFN: | |
a8170e5e | 271 | pa = (hwaddr)val << VIRTIO_PCI_QUEUE_ADDR_SHIFT; |
1b8e9b27 | 272 | if (pa == 0) { |
25db9ebe | 273 | virtio_pci_stop_ioeventfd(proxy); |
1b8e9b27 MT |
274 | virtio_reset(proxy->vdev); |
275 | msix_unuse_all_vectors(&proxy->pci_dev); | |
276 | } | |
7055e687 MT |
277 | else |
278 | virtio_queue_set_addr(vdev, vdev->queue_sel, pa); | |
53c25cea PB |
279 | break; |
280 | case VIRTIO_PCI_QUEUE_SEL: | |
281 | if (val < VIRTIO_PCI_QUEUE_MAX) | |
282 | vdev->queue_sel = val; | |
283 | break; | |
284 | case VIRTIO_PCI_QUEUE_NOTIFY: | |
7157e2e2 SH |
285 | if (val < VIRTIO_PCI_QUEUE_MAX) { |
286 | virtio_queue_notify(vdev, val); | |
287 | } | |
53c25cea PB |
288 | break; |
289 | case VIRTIO_PCI_STATUS: | |
25db9ebe SH |
290 | if (!(val & VIRTIO_CONFIG_S_DRIVER_OK)) { |
291 | virtio_pci_stop_ioeventfd(proxy); | |
292 | } | |
293 | ||
3e607cb5 | 294 | virtio_set_status(vdev, val & 0xFF); |
25db9ebe SH |
295 | |
296 | if (val & VIRTIO_CONFIG_S_DRIVER_OK) { | |
297 | virtio_pci_start_ioeventfd(proxy); | |
298 | } | |
299 | ||
1b8e9b27 MT |
300 | if (vdev->status == 0) { |
301 | virtio_reset(proxy->vdev); | |
302 | msix_unuse_all_vectors(&proxy->pci_dev); | |
303 | } | |
c81131db AG |
304 | |
305 | /* Linux before 2.6.34 sets the device as OK without enabling | |
306 | the PCI device bus master bit. In this case we need to disable | |
307 | some safety checks. */ | |
308 | if ((val & VIRTIO_CONFIG_S_DRIVER_OK) && | |
309 | !(proxy->pci_dev.config[PCI_COMMAND] & PCI_COMMAND_MASTER)) { | |
3dbca8e6 | 310 | proxy->flags |= VIRTIO_PCI_FLAG_BUS_MASTER_BUG; |
c81131db | 311 | } |
53c25cea | 312 | break; |
aba800a3 MT |
313 | case VIRTIO_MSI_CONFIG_VECTOR: |
314 | msix_vector_unuse(&proxy->pci_dev, vdev->config_vector); | |
315 | /* Make it possible for guest to discover an error took place. */ | |
316 | if (msix_vector_use(&proxy->pci_dev, val) < 0) | |
317 | val = VIRTIO_NO_VECTOR; | |
318 | vdev->config_vector = val; | |
319 | break; | |
320 | case VIRTIO_MSI_QUEUE_VECTOR: | |
321 | msix_vector_unuse(&proxy->pci_dev, | |
322 | virtio_queue_vector(vdev, vdev->queue_sel)); | |
323 | /* Make it possible for guest to discover an error took place. */ | |
324 | if (msix_vector_use(&proxy->pci_dev, val) < 0) | |
325 | val = VIRTIO_NO_VECTOR; | |
326 | virtio_queue_set_vector(vdev, vdev->queue_sel, val); | |
327 | break; | |
328 | default: | |
4e02d460 SH |
329 | error_report("%s: unexpected address 0x%x value 0x%x", |
330 | __func__, addr, val); | |
aba800a3 | 331 | break; |
53c25cea PB |
332 | } |
333 | } | |
334 | ||
aba800a3 | 335 | static uint32_t virtio_ioport_read(VirtIOPCIProxy *proxy, uint32_t addr) |
53c25cea | 336 | { |
53c25cea PB |
337 | VirtIODevice *vdev = proxy->vdev; |
338 | uint32_t ret = 0xFFFFFFFF; | |
339 | ||
53c25cea PB |
340 | switch (addr) { |
341 | case VIRTIO_PCI_HOST_FEATURES: | |
8172539d | 342 | ret = proxy->host_features; |
53c25cea PB |
343 | break; |
344 | case VIRTIO_PCI_GUEST_FEATURES: | |
704a76fc | 345 | ret = vdev->guest_features; |
53c25cea PB |
346 | break; |
347 | case VIRTIO_PCI_QUEUE_PFN: | |
348 | ret = virtio_queue_get_addr(vdev, vdev->queue_sel) | |
349 | >> VIRTIO_PCI_QUEUE_ADDR_SHIFT; | |
350 | break; | |
351 | case VIRTIO_PCI_QUEUE_NUM: | |
352 | ret = virtio_queue_get_num(vdev, vdev->queue_sel); | |
353 | break; | |
354 | case VIRTIO_PCI_QUEUE_SEL: | |
355 | ret = vdev->queue_sel; | |
356 | break; | |
357 | case VIRTIO_PCI_STATUS: | |
358 | ret = vdev->status; | |
359 | break; | |
360 | case VIRTIO_PCI_ISR: | |
361 | /* reading from the ISR also clears it. */ | |
362 | ret = vdev->isr; | |
363 | vdev->isr = 0; | |
7055e687 | 364 | qemu_set_irq(proxy->pci_dev.irq[0], 0); |
53c25cea | 365 | break; |
aba800a3 MT |
366 | case VIRTIO_MSI_CONFIG_VECTOR: |
367 | ret = vdev->config_vector; | |
368 | break; | |
369 | case VIRTIO_MSI_QUEUE_VECTOR: | |
370 | ret = virtio_queue_vector(vdev, vdev->queue_sel); | |
371 | break; | |
53c25cea PB |
372 | default: |
373 | break; | |
374 | } | |
375 | ||
376 | return ret; | |
377 | } | |
378 | ||
df6db5b3 AG |
379 | static uint64_t virtio_pci_config_read(void *opaque, hwaddr addr, |
380 | unsigned size) | |
53c25cea PB |
381 | { |
382 | VirtIOPCIProxy *proxy = opaque; | |
aba800a3 | 383 | uint32_t config = VIRTIO_PCI_CONFIG(&proxy->pci_dev); |
df6db5b3 | 384 | uint64_t val = 0; |
aba800a3 | 385 | if (addr < config) { |
df6db5b3 | 386 | return virtio_ioport_read(proxy, addr); |
aba800a3 MT |
387 | } |
388 | addr -= config; | |
53c25cea | 389 | |
df6db5b3 AG |
390 | switch (size) { |
391 | case 1: | |
392 | val = virtio_config_readb(proxy->vdev, addr); | |
393 | break; | |
394 | case 2: | |
395 | val = virtio_config_readw(proxy->vdev, addr); | |
8e4a424b BS |
396 | if (virtio_is_big_endian()) { |
397 | val = bswap16(val); | |
398 | } | |
df6db5b3 AG |
399 | break; |
400 | case 4: | |
401 | val = virtio_config_readl(proxy->vdev, addr); | |
8e4a424b BS |
402 | if (virtio_is_big_endian()) { |
403 | val = bswap32(val); | |
404 | } | |
df6db5b3 | 405 | break; |
82afa586 | 406 | } |
df6db5b3 | 407 | return val; |
53c25cea PB |
408 | } |
409 | ||
df6db5b3 AG |
410 | static void virtio_pci_config_write(void *opaque, hwaddr addr, |
411 | uint64_t val, unsigned size) | |
53c25cea PB |
412 | { |
413 | VirtIOPCIProxy *proxy = opaque; | |
aba800a3 | 414 | uint32_t config = VIRTIO_PCI_CONFIG(&proxy->pci_dev); |
aba800a3 MT |
415 | if (addr < config) { |
416 | virtio_ioport_write(proxy, addr, val); | |
417 | return; | |
418 | } | |
419 | addr -= config; | |
df6db5b3 AG |
420 | /* |
421 | * Virtio-PCI is odd. Ioports are LE but config space is target native | |
422 | * endian. | |
423 | */ | |
424 | switch (size) { | |
425 | case 1: | |
426 | virtio_config_writeb(proxy->vdev, addr, val); | |
427 | break; | |
428 | case 2: | |
8e4a424b BS |
429 | if (virtio_is_big_endian()) { |
430 | val = bswap16(val); | |
431 | } | |
df6db5b3 AG |
432 | virtio_config_writew(proxy->vdev, addr, val); |
433 | break; | |
434 | case 4: | |
8e4a424b BS |
435 | if (virtio_is_big_endian()) { |
436 | val = bswap32(val); | |
437 | } | |
df6db5b3 AG |
438 | virtio_config_writel(proxy->vdev, addr, val); |
439 | break; | |
82afa586 | 440 | } |
53c25cea PB |
441 | } |
442 | ||
da146d0a | 443 | static const MemoryRegionOps virtio_pci_config_ops = { |
df6db5b3 AG |
444 | .read = virtio_pci_config_read, |
445 | .write = virtio_pci_config_write, | |
446 | .impl = { | |
447 | .min_access_size = 1, | |
448 | .max_access_size = 4, | |
449 | }, | |
8e4a424b | 450 | .endianness = DEVICE_LITTLE_ENDIAN, |
da146d0a | 451 | }; |
aba800a3 MT |
452 | |
453 | static void virtio_write_config(PCIDevice *pci_dev, uint32_t address, | |
454 | uint32_t val, int len) | |
455 | { | |
ed757e14 YV |
456 | VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev); |
457 | ||
1129714f MT |
458 | pci_default_write_config(pci_dev, address, val, len); |
459 | ||
460 | if (range_covers_byte(address, len, PCI_COMMAND) && | |
461 | !(pci_dev->config[PCI_COMMAND] & PCI_COMMAND_MASTER) && | |
462 | !(proxy->flags & VIRTIO_PCI_FLAG_BUS_MASTER_BUG)) { | |
463 | virtio_pci_stop_ioeventfd(proxy); | |
464 | virtio_set_status(proxy->vdev, | |
465 | proxy->vdev->status & ~VIRTIO_CONFIG_S_DRIVER_OK); | |
ed757e14 | 466 | } |
53c25cea PB |
467 | } |
468 | ||
d2a0ccc6 | 469 | static unsigned virtio_pci_get_features(DeviceState *d) |
6d74ca5a | 470 | { |
d2a0ccc6 | 471 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
8172539d | 472 | return proxy->host_features; |
6d74ca5a MT |
473 | } |
474 | ||
7d37d351 JK |
475 | static int kvm_virtio_pci_vq_vector_use(VirtIOPCIProxy *proxy, |
476 | unsigned int queue_no, | |
477 | unsigned int vector, | |
478 | MSIMessage msg) | |
479 | { | |
7d37d351 | 480 | VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector]; |
15b2bd18 | 481 | int ret; |
7d37d351 JK |
482 | |
483 | if (irqfd->users == 0) { | |
484 | ret = kvm_irqchip_add_msi_route(kvm_state, msg); | |
485 | if (ret < 0) { | |
486 | return ret; | |
487 | } | |
488 | irqfd->virq = ret; | |
489 | } | |
490 | irqfd->users++; | |
7d37d351 JK |
491 | return 0; |
492 | } | |
493 | ||
494 | static void kvm_virtio_pci_vq_vector_release(VirtIOPCIProxy *proxy, | |
7d37d351 | 495 | unsigned int vector) |
774345f9 MT |
496 | { |
497 | VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector]; | |
498 | if (--irqfd->users == 0) { | |
499 | kvm_irqchip_release_virq(kvm_state, irqfd->virq); | |
500 | } | |
501 | } | |
502 | ||
f1d0f15a MT |
503 | static int kvm_virtio_pci_irqfd_use(VirtIOPCIProxy *proxy, |
504 | unsigned int queue_no, | |
505 | unsigned int vector) | |
506 | { | |
507 | VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector]; | |
508 | VirtQueue *vq = virtio_get_queue(proxy->vdev, queue_no); | |
509 | EventNotifier *n = virtio_queue_get_guest_notifier(vq); | |
510 | int ret; | |
511 | ret = kvm_irqchip_add_irqfd_notifier(kvm_state, n, irqfd->virq); | |
512 | return ret; | |
513 | } | |
514 | ||
515 | static void kvm_virtio_pci_irqfd_release(VirtIOPCIProxy *proxy, | |
516 | unsigned int queue_no, | |
517 | unsigned int vector) | |
7d37d351 JK |
518 | { |
519 | VirtQueue *vq = virtio_get_queue(proxy->vdev, queue_no); | |
15b2bd18 | 520 | EventNotifier *n = virtio_queue_get_guest_notifier(vq); |
7d37d351 | 521 | VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector]; |
15b2bd18 | 522 | int ret; |
7d37d351 | 523 | |
b131c74a | 524 | ret = kvm_irqchip_remove_irqfd_notifier(kvm_state, n, irqfd->virq); |
7d37d351 | 525 | assert(ret == 0); |
f1d0f15a | 526 | } |
7d37d351 | 527 | |
774345f9 MT |
528 | static int kvm_virtio_pci_vector_use(VirtIOPCIProxy *proxy, int nvqs) |
529 | { | |
530 | PCIDevice *dev = &proxy->pci_dev; | |
531 | VirtIODevice *vdev = proxy->vdev; | |
181103cd | 532 | VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); |
774345f9 MT |
533 | unsigned int vector; |
534 | int ret, queue_no; | |
535 | MSIMessage msg; | |
536 | ||
537 | for (queue_no = 0; queue_no < nvqs; queue_no++) { | |
538 | if (!virtio_queue_get_num(vdev, queue_no)) { | |
539 | break; | |
540 | } | |
541 | vector = virtio_queue_vector(vdev, queue_no); | |
542 | if (vector >= msix_nr_vectors_allocated(dev)) { | |
543 | continue; | |
544 | } | |
545 | msg = msix_get_message(dev, vector); | |
546 | ret = kvm_virtio_pci_vq_vector_use(proxy, queue_no, vector, msg); | |
547 | if (ret < 0) { | |
548 | goto undo; | |
7d37d351 | 549 | } |
f1d0f15a MT |
550 | /* If guest supports masking, set up irqfd now. |
551 | * Otherwise, delay until unmasked in the frontend. | |
552 | */ | |
181103cd | 553 | if (k->guest_notifier_mask) { |
f1d0f15a MT |
554 | ret = kvm_virtio_pci_irqfd_use(proxy, queue_no, vector); |
555 | if (ret < 0) { | |
556 | kvm_virtio_pci_vq_vector_release(proxy, vector); | |
557 | goto undo; | |
558 | } | |
559 | } | |
7d37d351 | 560 | } |
7d37d351 | 561 | return 0; |
774345f9 MT |
562 | |
563 | undo: | |
564 | while (--queue_no >= 0) { | |
565 | vector = virtio_queue_vector(vdev, queue_no); | |
566 | if (vector >= msix_nr_vectors_allocated(dev)) { | |
567 | continue; | |
568 | } | |
181103cd | 569 | if (k->guest_notifier_mask) { |
e387f99e | 570 | kvm_virtio_pci_irqfd_release(proxy, queue_no, vector); |
f1d0f15a | 571 | } |
774345f9 MT |
572 | kvm_virtio_pci_vq_vector_release(proxy, vector); |
573 | } | |
574 | return ret; | |
7d37d351 JK |
575 | } |
576 | ||
774345f9 MT |
577 | static void kvm_virtio_pci_vector_release(VirtIOPCIProxy *proxy, int nvqs) |
578 | { | |
579 | PCIDevice *dev = &proxy->pci_dev; | |
580 | VirtIODevice *vdev = proxy->vdev; | |
581 | unsigned int vector; | |
582 | int queue_no; | |
181103cd | 583 | VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); |
774345f9 MT |
584 | |
585 | for (queue_no = 0; queue_no < nvqs; queue_no++) { | |
586 | if (!virtio_queue_get_num(vdev, queue_no)) { | |
587 | break; | |
588 | } | |
589 | vector = virtio_queue_vector(vdev, queue_no); | |
590 | if (vector >= msix_nr_vectors_allocated(dev)) { | |
591 | continue; | |
592 | } | |
f1d0f15a MT |
593 | /* If guest supports masking, clean up irqfd now. |
594 | * Otherwise, it was cleaned when masked in the frontend. | |
595 | */ | |
181103cd | 596 | if (k->guest_notifier_mask) { |
e387f99e | 597 | kvm_virtio_pci_irqfd_release(proxy, queue_no, vector); |
f1d0f15a | 598 | } |
774345f9 MT |
599 | kvm_virtio_pci_vq_vector_release(proxy, vector); |
600 | } | |
601 | } | |
602 | ||
a38b2c49 MT |
603 | static int virtio_pci_vq_vector_unmask(VirtIOPCIProxy *proxy, |
604 | unsigned int queue_no, | |
605 | unsigned int vector, | |
606 | MSIMessage msg) | |
774345f9 | 607 | { |
181103cd | 608 | VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(proxy->vdev); |
774345f9 MT |
609 | VirtQueue *vq = virtio_get_queue(proxy->vdev, queue_no); |
610 | EventNotifier *n = virtio_queue_get_guest_notifier(vq); | |
a38b2c49 | 611 | VirtIOIRQFD *irqfd; |
53510bfc | 612 | int ret = 0; |
774345f9 | 613 | |
a38b2c49 MT |
614 | if (proxy->vector_irqfd) { |
615 | irqfd = &proxy->vector_irqfd[vector]; | |
616 | if (irqfd->msg.data != msg.data || irqfd->msg.address != msg.address) { | |
617 | ret = kvm_irqchip_update_msi_route(kvm_state, irqfd->virq, msg); | |
618 | if (ret < 0) { | |
619 | return ret; | |
620 | } | |
774345f9 MT |
621 | } |
622 | } | |
623 | ||
f1d0f15a MT |
624 | /* If guest supports masking, irqfd is already setup, unmask it. |
625 | * Otherwise, set it up now. | |
626 | */ | |
181103cd FK |
627 | if (k->guest_notifier_mask) { |
628 | k->guest_notifier_mask(proxy->vdev, queue_no, false); | |
f1d0f15a | 629 | /* Test after unmasking to avoid losing events. */ |
181103cd FK |
630 | if (k->guest_notifier_pending && |
631 | k->guest_notifier_pending(proxy->vdev, queue_no)) { | |
f1d0f15a MT |
632 | event_notifier_set(n); |
633 | } | |
634 | } else { | |
635 | ret = kvm_virtio_pci_irqfd_use(proxy, queue_no, vector); | |
7d37d351 | 636 | } |
774345f9 | 637 | return ret; |
7d37d351 JK |
638 | } |
639 | ||
a38b2c49 | 640 | static void virtio_pci_vq_vector_mask(VirtIOPCIProxy *proxy, |
7d37d351 JK |
641 | unsigned int queue_no, |
642 | unsigned int vector) | |
643 | { | |
181103cd FK |
644 | VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(proxy->vdev); |
645 | ||
f1d0f15a MT |
646 | /* If guest supports masking, keep irqfd but mask it. |
647 | * Otherwise, clean it up now. | |
648 | */ | |
181103cd FK |
649 | if (k->guest_notifier_mask) { |
650 | k->guest_notifier_mask(proxy->vdev, queue_no, true); | |
f1d0f15a | 651 | } else { |
e387f99e | 652 | kvm_virtio_pci_irqfd_release(proxy, queue_no, vector); |
f1d0f15a | 653 | } |
7d37d351 JK |
654 | } |
655 | ||
a38b2c49 MT |
656 | static int virtio_pci_vector_unmask(PCIDevice *dev, unsigned vector, |
657 | MSIMessage msg) | |
7d37d351 JK |
658 | { |
659 | VirtIOPCIProxy *proxy = container_of(dev, VirtIOPCIProxy, pci_dev); | |
660 | VirtIODevice *vdev = proxy->vdev; | |
661 | int ret, queue_no; | |
662 | ||
2d620f59 | 663 | for (queue_no = 0; queue_no < proxy->nvqs_with_notifiers; queue_no++) { |
7d37d351 JK |
664 | if (!virtio_queue_get_num(vdev, queue_no)) { |
665 | break; | |
666 | } | |
667 | if (virtio_queue_vector(vdev, queue_no) != vector) { | |
668 | continue; | |
669 | } | |
a38b2c49 | 670 | ret = virtio_pci_vq_vector_unmask(proxy, queue_no, vector, msg); |
7d37d351 JK |
671 | if (ret < 0) { |
672 | goto undo; | |
673 | } | |
674 | } | |
675 | return 0; | |
676 | ||
677 | undo: | |
678 | while (--queue_no >= 0) { | |
679 | if (virtio_queue_vector(vdev, queue_no) != vector) { | |
680 | continue; | |
681 | } | |
a38b2c49 | 682 | virtio_pci_vq_vector_mask(proxy, queue_no, vector); |
7d37d351 JK |
683 | } |
684 | return ret; | |
685 | } | |
686 | ||
a38b2c49 | 687 | static void virtio_pci_vector_mask(PCIDevice *dev, unsigned vector) |
7d37d351 JK |
688 | { |
689 | VirtIOPCIProxy *proxy = container_of(dev, VirtIOPCIProxy, pci_dev); | |
690 | VirtIODevice *vdev = proxy->vdev; | |
691 | int queue_no; | |
692 | ||
2d620f59 | 693 | for (queue_no = 0; queue_no < proxy->nvqs_with_notifiers; queue_no++) { |
7d37d351 JK |
694 | if (!virtio_queue_get_num(vdev, queue_no)) { |
695 | break; | |
696 | } | |
697 | if (virtio_queue_vector(vdev, queue_no) != vector) { | |
698 | continue; | |
699 | } | |
a38b2c49 | 700 | virtio_pci_vq_vector_mask(proxy, queue_no, vector); |
7d37d351 JK |
701 | } |
702 | } | |
703 | ||
a38b2c49 MT |
704 | static void virtio_pci_vector_poll(PCIDevice *dev, |
705 | unsigned int vector_start, | |
706 | unsigned int vector_end) | |
89d62be9 MT |
707 | { |
708 | VirtIOPCIProxy *proxy = container_of(dev, VirtIOPCIProxy, pci_dev); | |
709 | VirtIODevice *vdev = proxy->vdev; | |
181103cd | 710 | VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); |
89d62be9 MT |
711 | int queue_no; |
712 | unsigned int vector; | |
713 | EventNotifier *notifier; | |
714 | VirtQueue *vq; | |
715 | ||
2d620f59 | 716 | for (queue_no = 0; queue_no < proxy->nvqs_with_notifiers; queue_no++) { |
89d62be9 MT |
717 | if (!virtio_queue_get_num(vdev, queue_no)) { |
718 | break; | |
719 | } | |
720 | vector = virtio_queue_vector(vdev, queue_no); | |
721 | if (vector < vector_start || vector >= vector_end || | |
722 | !msix_is_masked(dev, vector)) { | |
723 | continue; | |
724 | } | |
725 | vq = virtio_get_queue(vdev, queue_no); | |
726 | notifier = virtio_queue_get_guest_notifier(vq); | |
181103cd FK |
727 | if (k->guest_notifier_pending) { |
728 | if (k->guest_notifier_pending(vdev, queue_no)) { | |
f1d0f15a MT |
729 | msix_set_pending(dev, vector); |
730 | } | |
731 | } else if (event_notifier_test_and_clear(notifier)) { | |
89d62be9 MT |
732 | msix_set_pending(dev, vector); |
733 | } | |
734 | } | |
735 | } | |
736 | ||
737 | static int virtio_pci_set_guest_notifier(DeviceState *d, int n, bool assign, | |
738 | bool with_irqfd) | |
ade80dc8 | 739 | { |
d2a0ccc6 | 740 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
62c96360 | 741 | VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(proxy->vdev); |
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 | ||
62c96360 MT |
756 | if (!msix_enabled(&proxy->pci_dev) && vdc->guest_notifier_mask) { |
757 | vdc->guest_notifier_mask(proxy->vdev, n, !assign); | |
758 | } | |
759 | ||
ade80dc8 MT |
760 | return 0; |
761 | } | |
762 | ||
d2a0ccc6 | 763 | static bool virtio_pci_query_guest_notifiers(DeviceState *d) |
5430a28f | 764 | { |
d2a0ccc6 | 765 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
5430a28f MT |
766 | return msix_enabled(&proxy->pci_dev); |
767 | } | |
768 | ||
2d620f59 | 769 | static int virtio_pci_set_guest_notifiers(DeviceState *d, int nvqs, bool assign) |
54dd9321 | 770 | { |
d2a0ccc6 | 771 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
54dd9321 | 772 | VirtIODevice *vdev = proxy->vdev; |
181103cd | 773 | VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); |
54dd9321 | 774 | int r, n; |
89d62be9 MT |
775 | bool with_irqfd = msix_enabled(&proxy->pci_dev) && |
776 | kvm_msi_via_irqfd_enabled(); | |
54dd9321 | 777 | |
2d620f59 MT |
778 | nvqs = MIN(nvqs, VIRTIO_PCI_QUEUE_MAX); |
779 | ||
780 | /* When deassigning, pass a consistent nvqs value | |
781 | * to avoid leaking notifiers. | |
782 | */ | |
783 | assert(assign || nvqs == proxy->nvqs_with_notifiers); | |
784 | ||
785 | proxy->nvqs_with_notifiers = nvqs; | |
786 | ||
7d37d351 | 787 | /* Must unset vector notifier while guest notifier is still assigned */ |
181103cd | 788 | if ((proxy->vector_irqfd || k->guest_notifier_mask) && !assign) { |
7d37d351 | 789 | msix_unset_vector_notifiers(&proxy->pci_dev); |
a38b2c49 MT |
790 | if (proxy->vector_irqfd) { |
791 | kvm_virtio_pci_vector_release(proxy, nvqs); | |
792 | g_free(proxy->vector_irqfd); | |
793 | proxy->vector_irqfd = NULL; | |
794 | } | |
7d37d351 JK |
795 | } |
796 | ||
2d620f59 | 797 | for (n = 0; n < nvqs; n++) { |
54dd9321 MT |
798 | if (!virtio_queue_get_num(vdev, n)) { |
799 | break; | |
800 | } | |
801 | ||
89d62be9 MT |
802 | r = virtio_pci_set_guest_notifier(d, n, assign, |
803 | kvm_msi_via_irqfd_enabled()); | |
54dd9321 MT |
804 | if (r < 0) { |
805 | goto assign_error; | |
806 | } | |
807 | } | |
808 | ||
7d37d351 | 809 | /* Must set vector notifier after guest notifier has been assigned */ |
181103cd | 810 | if ((with_irqfd || k->guest_notifier_mask) && assign) { |
a38b2c49 MT |
811 | if (with_irqfd) { |
812 | proxy->vector_irqfd = | |
813 | g_malloc0(sizeof(*proxy->vector_irqfd) * | |
814 | msix_nr_vectors_allocated(&proxy->pci_dev)); | |
815 | r = kvm_virtio_pci_vector_use(proxy, nvqs); | |
816 | if (r < 0) { | |
817 | goto assign_error; | |
818 | } | |
774345f9 | 819 | } |
7d37d351 | 820 | r = msix_set_vector_notifiers(&proxy->pci_dev, |
a38b2c49 MT |
821 | virtio_pci_vector_unmask, |
822 | virtio_pci_vector_mask, | |
823 | virtio_pci_vector_poll); | |
7d37d351 | 824 | if (r < 0) { |
774345f9 | 825 | goto notifiers_error; |
7d37d351 JK |
826 | } |
827 | } | |
828 | ||
54dd9321 MT |
829 | return 0; |
830 | ||
774345f9 | 831 | notifiers_error: |
a38b2c49 MT |
832 | if (with_irqfd) { |
833 | assert(assign); | |
834 | kvm_virtio_pci_vector_release(proxy, nvqs); | |
835 | } | |
774345f9 | 836 | |
54dd9321 MT |
837 | assign_error: |
838 | /* We get here on assignment failure. Recover by undoing for VQs 0 .. n. */ | |
7d37d351 | 839 | assert(assign); |
54dd9321 | 840 | while (--n >= 0) { |
89d62be9 | 841 | virtio_pci_set_guest_notifier(d, n, !assign, with_irqfd); |
54dd9321 MT |
842 | } |
843 | return r; | |
844 | } | |
845 | ||
d2a0ccc6 | 846 | static int virtio_pci_set_host_notifier(DeviceState *d, int n, bool assign) |
ade80dc8 | 847 | { |
d2a0ccc6 | 848 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
25db9ebe SH |
849 | |
850 | /* Stop using ioeventfd for virtqueue kick if the device starts using host | |
851 | * notifiers. This makes it easy to avoid stepping on each others' toes. | |
852 | */ | |
853 | proxy->ioeventfd_disabled = assign; | |
ade80dc8 | 854 | if (assign) { |
25db9ebe SH |
855 | virtio_pci_stop_ioeventfd(proxy); |
856 | } | |
857 | /* We don't need to start here: it's not needed because backend | |
858 | * currently only stops on status change away from ok, | |
859 | * reset, vmstop and such. If we do add code to start here, | |
860 | * need to check vmstate, device state etc. */ | |
26b9b5fe | 861 | return virtio_pci_set_host_notifier_internal(proxy, n, assign, false); |
25db9ebe SH |
862 | } |
863 | ||
d2a0ccc6 | 864 | static void virtio_pci_vmstate_change(DeviceState *d, bool running) |
25db9ebe | 865 | { |
d2a0ccc6 | 866 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
25db9ebe SH |
867 | |
868 | if (running) { | |
89c473fd MT |
869 | /* Try to find out if the guest has bus master disabled, but is |
870 | in ready state. Then we have a buggy guest OS. */ | |
871 | if ((proxy->vdev->status & VIRTIO_CONFIG_S_DRIVER_OK) && | |
872 | !(proxy->pci_dev.config[PCI_COMMAND] & PCI_COMMAND_MASTER)) { | |
873 | proxy->flags |= VIRTIO_PCI_FLAG_BUS_MASTER_BUG; | |
874 | } | |
25db9ebe | 875 | virtio_pci_start_ioeventfd(proxy); |
ade80dc8 | 876 | } else { |
25db9ebe | 877 | virtio_pci_stop_ioeventfd(proxy); |
ade80dc8 | 878 | } |
ade80dc8 MT |
879 | } |
880 | ||
60653b28 | 881 | #ifdef CONFIG_VIRTFS |
234a336f | 882 | static int virtio_9p_init_pci(VirtIOPCIProxy *vpci_dev) |
60653b28 | 883 | { |
234a336f FK |
884 | V9fsPCIState *dev = VIRTIO_9P_PCI(vpci_dev); |
885 | DeviceState *vdev = DEVICE(&dev->vdev); | |
60653b28 | 886 | |
234a336f FK |
887 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
888 | if (qdev_init(vdev) < 0) { | |
889 | return -1; | |
890 | } | |
60653b28 PB |
891 | return 0; |
892 | } | |
893 | ||
234a336f FK |
894 | static Property virtio_9p_pci_properties[] = { |
895 | DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, | |
896 | VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), | |
60653b28 PB |
897 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2), |
898 | DEFINE_VIRTIO_COMMON_FEATURES(VirtIOPCIProxy, host_features), | |
234a336f | 899 | DEFINE_VIRTIO_9P_PROPERTIES(V9fsPCIState, vdev.fsconf), |
60653b28 PB |
900 | DEFINE_PROP_END_OF_LIST(), |
901 | }; | |
902 | ||
234a336f | 903 | static void virtio_9p_pci_class_init(ObjectClass *klass, void *data) |
60653b28 PB |
904 | { |
905 | DeviceClass *dc = DEVICE_CLASS(klass); | |
234a336f FK |
906 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); |
907 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
60653b28 PB |
908 | |
909 | k->init = virtio_9p_init_pci; | |
234a336f FK |
910 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; |
911 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_9P; | |
912 | pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; | |
913 | pcidev_k->class_id = 0x2; | |
125ee0ed | 914 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
234a336f | 915 | dc->props = virtio_9p_pci_properties; |
60653b28 PB |
916 | } |
917 | ||
234a336f FK |
918 | static void virtio_9p_pci_instance_init(Object *obj) |
919 | { | |
920 | V9fsPCIState *dev = VIRTIO_9P_PCI(obj); | |
921 | object_initialize(OBJECT(&dev->vdev), TYPE_VIRTIO_9P); | |
922 | object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL); | |
923 | } | |
924 | ||
925 | static const TypeInfo virtio_9p_pci_info = { | |
926 | .name = TYPE_VIRTIO_9P_PCI, | |
927 | .parent = TYPE_VIRTIO_PCI, | |
928 | .instance_size = sizeof(V9fsPCIState), | |
929 | .instance_init = virtio_9p_pci_instance_init, | |
930 | .class_init = virtio_9p_pci_class_init, | |
60653b28 | 931 | }; |
234a336f | 932 | #endif /* CONFIG_VIRTFS */ |
60653b28 | 933 | |
085bccb7 FK |
934 | /* |
935 | * virtio-pci: This is the PCIDevice which has a virtio-pci-bus. | |
936 | */ | |
937 | ||
938 | /* This is called by virtio-bus just after the device is plugged. */ | |
939 | static void virtio_pci_device_plugged(DeviceState *d) | |
940 | { | |
941 | VirtIOPCIProxy *proxy = VIRTIO_PCI(d); | |
942 | VirtioBusState *bus = &proxy->bus; | |
943 | uint8_t *config; | |
944 | uint32_t size; | |
945 | ||
946 | proxy->vdev = bus->vdev; | |
947 | ||
948 | config = proxy->pci_dev.config; | |
949 | if (proxy->class_code) { | |
950 | pci_config_set_class(config, proxy->class_code); | |
951 | } | |
952 | pci_set_word(config + PCI_SUBSYSTEM_VENDOR_ID, | |
953 | pci_get_word(config + PCI_VENDOR_ID)); | |
954 | pci_set_word(config + PCI_SUBSYSTEM_ID, virtio_bus_get_vdev_id(bus)); | |
955 | config[PCI_INTERRUPT_PIN] = 1; | |
956 | ||
957 | if (proxy->nvectors && | |
958 | msix_init_exclusive_bar(&proxy->pci_dev, proxy->nvectors, 1)) { | |
959 | proxy->nvectors = 0; | |
960 | } | |
961 | ||
962 | proxy->pci_dev.config_write = virtio_write_config; | |
963 | ||
964 | size = VIRTIO_PCI_REGION_SIZE(&proxy->pci_dev) | |
965 | + virtio_bus_get_vdev_config_len(bus); | |
966 | if (size & (size - 1)) { | |
967 | size = 1 << qemu_fls(size); | |
968 | } | |
969 | ||
22fc860b PB |
970 | memory_region_init_io(&proxy->bar, OBJECT(proxy), &virtio_pci_config_ops, |
971 | proxy, "virtio-pci", size); | |
085bccb7 FK |
972 | pci_register_bar(&proxy->pci_dev, 0, PCI_BASE_ADDRESS_SPACE_IO, |
973 | &proxy->bar); | |
974 | ||
975 | if (!kvm_has_many_ioeventfds()) { | |
976 | proxy->flags &= ~VIRTIO_PCI_FLAG_USE_IOEVENTFD; | |
977 | } | |
978 | ||
979 | proxy->host_features |= 0x1 << VIRTIO_F_NOTIFY_ON_EMPTY; | |
980 | proxy->host_features |= 0x1 << VIRTIO_F_BAD_FEATURE; | |
981 | proxy->host_features = virtio_bus_get_vdev_features(bus, | |
982 | proxy->host_features); | |
983 | } | |
984 | ||
085bccb7 FK |
985 | static int virtio_pci_init(PCIDevice *pci_dev) |
986 | { | |
987 | VirtIOPCIProxy *dev = VIRTIO_PCI(pci_dev); | |
988 | VirtioPCIClass *k = VIRTIO_PCI_GET_CLASS(pci_dev); | |
989 | virtio_pci_bus_new(&dev->bus, dev); | |
990 | if (k->init != NULL) { | |
991 | return k->init(dev); | |
992 | } | |
993 | return 0; | |
994 | } | |
995 | ||
996 | static void virtio_pci_exit(PCIDevice *pci_dev) | |
997 | { | |
998 | VirtIOPCIProxy *proxy = VIRTIO_PCI(pci_dev); | |
10479a80 | 999 | virtio_pci_stop_ioeventfd(proxy); |
a2f1078b FK |
1000 | memory_region_destroy(&proxy->bar); |
1001 | msix_uninit_exclusive_bar(pci_dev); | |
085bccb7 FK |
1002 | } |
1003 | ||
59ccd20a | 1004 | static void virtio_pci_reset(DeviceState *qdev) |
085bccb7 FK |
1005 | { |
1006 | VirtIOPCIProxy *proxy = VIRTIO_PCI(qdev); | |
1007 | VirtioBusState *bus = VIRTIO_BUS(&proxy->bus); | |
1008 | virtio_pci_stop_ioeventfd(proxy); | |
1009 | virtio_bus_reset(bus); | |
1010 | msix_unuse_all_vectors(&proxy->pci_dev); | |
1011 | proxy->flags &= ~VIRTIO_PCI_FLAG_BUS_MASTER_BUG; | |
1012 | } | |
1013 | ||
1014 | static void virtio_pci_class_init(ObjectClass *klass, void *data) | |
1015 | { | |
1016 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1017 | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); | |
1018 | ||
1019 | k->init = virtio_pci_init; | |
1020 | k->exit = virtio_pci_exit; | |
1021 | k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
1022 | k->revision = VIRTIO_PCI_ABI_VERSION; | |
1023 | k->class_id = PCI_CLASS_OTHERS; | |
59ccd20a | 1024 | dc->reset = virtio_pci_reset; |
085bccb7 FK |
1025 | } |
1026 | ||
1027 | static const TypeInfo virtio_pci_info = { | |
1028 | .name = TYPE_VIRTIO_PCI, | |
1029 | .parent = TYPE_PCI_DEVICE, | |
1030 | .instance_size = sizeof(VirtIOPCIProxy), | |
1031 | .class_init = virtio_pci_class_init, | |
1032 | .class_size = sizeof(VirtioPCIClass), | |
1033 | .abstract = true, | |
1034 | }; | |
1035 | ||
653ced07 FK |
1036 | /* virtio-blk-pci */ |
1037 | ||
1038 | static Property virtio_blk_pci_properties[] = { | |
1039 | DEFINE_PROP_HEX32("class", VirtIOPCIProxy, class_code, 0), | |
1040 | DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, | |
1041 | VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), | |
1042 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2), | |
1043 | #ifdef CONFIG_VIRTIO_BLK_DATA_PLANE | |
1044 | DEFINE_PROP_BIT("x-data-plane", VirtIOBlkPCI, blk.data_plane, 0, false), | |
1045 | #endif | |
1046 | DEFINE_VIRTIO_BLK_FEATURES(VirtIOPCIProxy, host_features), | |
1047 | DEFINE_VIRTIO_BLK_PROPERTIES(VirtIOBlkPCI, blk), | |
1048 | DEFINE_PROP_END_OF_LIST(), | |
1049 | }; | |
1050 | ||
1051 | static int virtio_blk_pci_init(VirtIOPCIProxy *vpci_dev) | |
1052 | { | |
1053 | VirtIOBlkPCI *dev = VIRTIO_BLK_PCI(vpci_dev); | |
1054 | DeviceState *vdev = DEVICE(&dev->vdev); | |
1055 | virtio_blk_set_conf(vdev, &(dev->blk)); | |
1056 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); | |
1057 | if (qdev_init(vdev) < 0) { | |
1058 | return -1; | |
1059 | } | |
1060 | return 0; | |
1061 | } | |
1062 | ||
1063 | static void virtio_blk_pci_class_init(ObjectClass *klass, void *data) | |
1064 | { | |
1065 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1066 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
1067 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
1068 | ||
125ee0ed | 1069 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
653ced07 FK |
1070 | dc->props = virtio_blk_pci_properties; |
1071 | k->init = virtio_blk_pci_init; | |
1072 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
1073 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_BLOCK; | |
1074 | pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; | |
1075 | pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI; | |
1076 | } | |
1077 | ||
1078 | static void virtio_blk_pci_instance_init(Object *obj) | |
1079 | { | |
1080 | VirtIOBlkPCI *dev = VIRTIO_BLK_PCI(obj); | |
1081 | object_initialize(OBJECT(&dev->vdev), TYPE_VIRTIO_BLK); | |
1082 | object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL); | |
1083 | } | |
1084 | ||
1085 | static const TypeInfo virtio_blk_pci_info = { | |
1086 | .name = TYPE_VIRTIO_BLK_PCI, | |
1087 | .parent = TYPE_VIRTIO_PCI, | |
1088 | .instance_size = sizeof(VirtIOBlkPCI), | |
1089 | .instance_init = virtio_blk_pci_instance_init, | |
1090 | .class_init = virtio_blk_pci_class_init, | |
1091 | }; | |
1092 | ||
bc7b90a0 FK |
1093 | /* virtio-scsi-pci */ |
1094 | ||
1095 | static Property virtio_scsi_pci_properties[] = { | |
1096 | DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, | |
1097 | VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), | |
1098 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, | |
1099 | DEV_NVECTORS_UNSPECIFIED), | |
1100 | DEFINE_VIRTIO_SCSI_FEATURES(VirtIOPCIProxy, host_features), | |
292c8e50 | 1101 | DEFINE_VIRTIO_SCSI_PROPERTIES(VirtIOSCSIPCI, vdev.parent_obj.conf), |
bc7b90a0 FK |
1102 | DEFINE_PROP_END_OF_LIST(), |
1103 | }; | |
1104 | ||
1105 | static int virtio_scsi_pci_init_pci(VirtIOPCIProxy *vpci_dev) | |
1106 | { | |
1107 | VirtIOSCSIPCI *dev = VIRTIO_SCSI_PCI(vpci_dev); | |
1108 | DeviceState *vdev = DEVICE(&dev->vdev); | |
292c8e50 | 1109 | VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(vdev); |
6f32a6b4 FK |
1110 | DeviceState *proxy = DEVICE(vpci_dev); |
1111 | char *bus_name; | |
bc7b90a0 FK |
1112 | |
1113 | if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) { | |
292c8e50 | 1114 | vpci_dev->nvectors = vs->conf.num_queues + 3; |
bc7b90a0 FK |
1115 | } |
1116 | ||
6f32a6b4 FK |
1117 | /* |
1118 | * For command line compatibility, this sets the virtio-scsi-device bus | |
1119 | * name as before. | |
1120 | */ | |
1121 | if (proxy->id) { | |
1122 | bus_name = g_strdup_printf("%s.0", proxy->id); | |
1123 | virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); | |
1124 | g_free(bus_name); | |
1125 | } | |
1126 | ||
bc7b90a0 FK |
1127 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
1128 | if (qdev_init(vdev) < 0) { | |
1129 | return -1; | |
1130 | } | |
1131 | return 0; | |
1132 | } | |
1133 | ||
1134 | static void virtio_scsi_pci_class_init(ObjectClass *klass, void *data) | |
1135 | { | |
1136 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1137 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
1138 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
1139 | k->init = virtio_scsi_pci_init_pci; | |
125ee0ed | 1140 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
bc7b90a0 FK |
1141 | dc->props = virtio_scsi_pci_properties; |
1142 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
1143 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_SCSI; | |
1144 | pcidev_k->revision = 0x00; | |
1145 | pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI; | |
1146 | } | |
1147 | ||
1148 | static void virtio_scsi_pci_instance_init(Object *obj) | |
1149 | { | |
1150 | VirtIOSCSIPCI *dev = VIRTIO_SCSI_PCI(obj); | |
1151 | object_initialize(OBJECT(&dev->vdev), TYPE_VIRTIO_SCSI); | |
1152 | object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL); | |
1153 | } | |
1154 | ||
1155 | static const TypeInfo virtio_scsi_pci_info = { | |
1156 | .name = TYPE_VIRTIO_SCSI_PCI, | |
1157 | .parent = TYPE_VIRTIO_PCI, | |
1158 | .instance_size = sizeof(VirtIOSCSIPCI), | |
1159 | .instance_init = virtio_scsi_pci_instance_init, | |
1160 | .class_init = virtio_scsi_pci_class_init, | |
1161 | }; | |
1162 | ||
50787628 NB |
1163 | /* vhost-scsi-pci */ |
1164 | ||
1165 | #ifdef CONFIG_VHOST_SCSI | |
1166 | static Property vhost_scsi_pci_properties[] = { | |
1167 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, | |
1168 | DEV_NVECTORS_UNSPECIFIED), | |
1169 | DEFINE_VIRTIO_COMMON_FEATURES(VirtIOPCIProxy, host_features), | |
1170 | DEFINE_VHOST_SCSI_PROPERTIES(VHostSCSIPCI, vdev.parent_obj.conf), | |
1171 | DEFINE_PROP_END_OF_LIST(), | |
1172 | }; | |
1173 | ||
1174 | static int vhost_scsi_pci_init_pci(VirtIOPCIProxy *vpci_dev) | |
1175 | { | |
1176 | VHostSCSIPCI *dev = VHOST_SCSI_PCI(vpci_dev); | |
1177 | DeviceState *vdev = DEVICE(&dev->vdev); | |
1178 | VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(vdev); | |
1179 | ||
1180 | if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) { | |
1181 | vpci_dev->nvectors = vs->conf.num_queues + 3; | |
1182 | } | |
1183 | ||
1184 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); | |
1185 | if (qdev_init(vdev) < 0) { | |
1186 | return -1; | |
1187 | } | |
1188 | return 0; | |
1189 | } | |
1190 | ||
1191 | static void vhost_scsi_pci_class_init(ObjectClass *klass, void *data) | |
1192 | { | |
1193 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1194 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
1195 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
1196 | k->init = vhost_scsi_pci_init_pci; | |
125ee0ed | 1197 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
50787628 NB |
1198 | dc->props = vhost_scsi_pci_properties; |
1199 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
1200 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_SCSI; | |
1201 | pcidev_k->revision = 0x00; | |
1202 | pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI; | |
1203 | } | |
1204 | ||
1205 | static void vhost_scsi_pci_instance_init(Object *obj) | |
1206 | { | |
1207 | VHostSCSIPCI *dev = VHOST_SCSI_PCI(obj); | |
1208 | object_initialize(OBJECT(&dev->vdev), TYPE_VHOST_SCSI); | |
1209 | object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL); | |
1210 | } | |
1211 | ||
1212 | static const TypeInfo vhost_scsi_pci_info = { | |
1213 | .name = TYPE_VHOST_SCSI_PCI, | |
1214 | .parent = TYPE_VIRTIO_PCI, | |
1215 | .instance_size = sizeof(VHostSCSIPCI), | |
1216 | .instance_init = vhost_scsi_pci_instance_init, | |
1217 | .class_init = vhost_scsi_pci_class_init, | |
1218 | }; | |
1219 | #endif | |
1220 | ||
e378e88d FK |
1221 | /* virtio-balloon-pci */ |
1222 | ||
24a6e7f4 FK |
1223 | static void balloon_pci_stats_get_all(Object *obj, struct Visitor *v, |
1224 | void *opaque, const char *name, | |
1225 | Error **errp) | |
1226 | { | |
1227 | VirtIOBalloonPCI *dev = opaque; | |
1228 | object_property_get(OBJECT(&dev->vdev), v, "guest-stats", errp); | |
1229 | } | |
1230 | ||
1231 | static void balloon_pci_stats_get_poll_interval(Object *obj, struct Visitor *v, | |
1232 | void *opaque, const char *name, | |
1233 | Error **errp) | |
1234 | { | |
1235 | VirtIOBalloonPCI *dev = opaque; | |
1236 | object_property_get(OBJECT(&dev->vdev), v, "guest-stats-polling-interval", | |
1237 | errp); | |
1238 | } | |
1239 | ||
1240 | static void balloon_pci_stats_set_poll_interval(Object *obj, struct Visitor *v, | |
1241 | void *opaque, const char *name, | |
1242 | Error **errp) | |
1243 | { | |
1244 | VirtIOBalloonPCI *dev = opaque; | |
1245 | object_property_set(OBJECT(&dev->vdev), v, "guest-stats-polling-interval", | |
1246 | errp); | |
1247 | } | |
1248 | ||
e378e88d FK |
1249 | static Property virtio_balloon_pci_properties[] = { |
1250 | DEFINE_VIRTIO_COMMON_FEATURES(VirtIOPCIProxy, host_features), | |
1251 | DEFINE_PROP_HEX32("class", VirtIOPCIProxy, class_code, 0), | |
1252 | DEFINE_PROP_END_OF_LIST(), | |
1253 | }; | |
1254 | ||
1255 | static int virtio_balloon_pci_init(VirtIOPCIProxy *vpci_dev) | |
1256 | { | |
1257 | VirtIOBalloonPCI *dev = VIRTIO_BALLOON_PCI(vpci_dev); | |
1258 | DeviceState *vdev = DEVICE(&dev->vdev); | |
1259 | ||
1260 | if (vpci_dev->class_code != PCI_CLASS_OTHERS && | |
1261 | vpci_dev->class_code != PCI_CLASS_MEMORY_RAM) { /* qemu < 1.1 */ | |
1262 | vpci_dev->class_code = PCI_CLASS_OTHERS; | |
1263 | } | |
1264 | ||
1265 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); | |
1266 | if (qdev_init(vdev) < 0) { | |
1267 | return -1; | |
1268 | } | |
1269 | return 0; | |
1270 | } | |
1271 | ||
1272 | static void virtio_balloon_pci_class_init(ObjectClass *klass, void *data) | |
1273 | { | |
1274 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1275 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
1276 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
1277 | k->init = virtio_balloon_pci_init; | |
125ee0ed | 1278 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); |
e378e88d FK |
1279 | dc->props = virtio_balloon_pci_properties; |
1280 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
1281 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_BALLOON; | |
1282 | pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; | |
1283 | pcidev_k->class_id = PCI_CLASS_OTHERS; | |
1284 | } | |
1285 | ||
1286 | static void virtio_balloon_pci_instance_init(Object *obj) | |
1287 | { | |
1288 | VirtIOBalloonPCI *dev = VIRTIO_BALLOON_PCI(obj); | |
1289 | object_initialize(OBJECT(&dev->vdev), TYPE_VIRTIO_BALLOON); | |
1290 | object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL); | |
24a6e7f4 FK |
1291 | |
1292 | object_property_add(obj, "guest-stats", "guest statistics", | |
1293 | balloon_pci_stats_get_all, NULL, NULL, dev, | |
1294 | NULL); | |
1295 | ||
1296 | object_property_add(obj, "guest-stats-polling-interval", "int", | |
1297 | balloon_pci_stats_get_poll_interval, | |
1298 | balloon_pci_stats_set_poll_interval, | |
1299 | NULL, dev, NULL); | |
e378e88d FK |
1300 | } |
1301 | ||
1302 | static const TypeInfo virtio_balloon_pci_info = { | |
1303 | .name = TYPE_VIRTIO_BALLOON_PCI, | |
1304 | .parent = TYPE_VIRTIO_PCI, | |
1305 | .instance_size = sizeof(VirtIOBalloonPCI), | |
1306 | .instance_init = virtio_balloon_pci_instance_init, | |
1307 | .class_init = virtio_balloon_pci_class_init, | |
1308 | }; | |
1309 | ||
f7f7464a FK |
1310 | /* virtio-serial-pci */ |
1311 | ||
1312 | static int virtio_serial_pci_init(VirtIOPCIProxy *vpci_dev) | |
1313 | { | |
1314 | VirtIOSerialPCI *dev = VIRTIO_SERIAL_PCI(vpci_dev); | |
1315 | DeviceState *vdev = DEVICE(&dev->vdev); | |
80270a19 FK |
1316 | DeviceState *proxy = DEVICE(vpci_dev); |
1317 | char *bus_name; | |
f7f7464a FK |
1318 | |
1319 | if (vpci_dev->class_code != PCI_CLASS_COMMUNICATION_OTHER && | |
1320 | vpci_dev->class_code != PCI_CLASS_DISPLAY_OTHER && /* qemu 0.10 */ | |
1321 | vpci_dev->class_code != PCI_CLASS_OTHERS) { /* qemu-kvm */ | |
1322 | vpci_dev->class_code = PCI_CLASS_COMMUNICATION_OTHER; | |
1323 | } | |
1324 | ||
1325 | /* backwards-compatibility with machines that were created with | |
1326 | DEV_NVECTORS_UNSPECIFIED */ | |
1327 | if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) { | |
1328 | vpci_dev->nvectors = dev->vdev.serial.max_virtserial_ports + 1; | |
1329 | } | |
1330 | ||
80270a19 FK |
1331 | /* |
1332 | * For command line compatibility, this sets the virtio-serial-device bus | |
1333 | * name as before. | |
1334 | */ | |
1335 | if (proxy->id) { | |
1336 | bus_name = g_strdup_printf("%s.0", proxy->id); | |
1337 | virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); | |
1338 | g_free(bus_name); | |
1339 | } | |
1340 | ||
f7f7464a FK |
1341 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
1342 | if (qdev_init(vdev) < 0) { | |
1343 | return -1; | |
1344 | } | |
1345 | return 0; | |
1346 | } | |
1347 | ||
1348 | static Property virtio_serial_pci_properties[] = { | |
1349 | DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, | |
1350 | VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), | |
1351 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2), | |
1352 | DEFINE_PROP_HEX32("class", VirtIOPCIProxy, class_code, 0), | |
1353 | DEFINE_VIRTIO_COMMON_FEATURES(VirtIOPCIProxy, host_features), | |
1354 | DEFINE_VIRTIO_SERIAL_PROPERTIES(VirtIOSerialPCI, vdev.serial), | |
1355 | DEFINE_PROP_END_OF_LIST(), | |
1356 | }; | |
1357 | ||
1358 | static void virtio_serial_pci_class_init(ObjectClass *klass, void *data) | |
1359 | { | |
1360 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1361 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
1362 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
1363 | k->init = virtio_serial_pci_init; | |
125ee0ed | 1364 | set_bit(DEVICE_CATEGORY_INPUT, dc->categories); |
f7f7464a FK |
1365 | dc->props = virtio_serial_pci_properties; |
1366 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
1367 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_CONSOLE; | |
1368 | pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; | |
1369 | pcidev_k->class_id = PCI_CLASS_COMMUNICATION_OTHER; | |
1370 | } | |
1371 | ||
1372 | static void virtio_serial_pci_instance_init(Object *obj) | |
1373 | { | |
1374 | VirtIOSerialPCI *dev = VIRTIO_SERIAL_PCI(obj); | |
1375 | object_initialize(OBJECT(&dev->vdev), TYPE_VIRTIO_SERIAL); | |
1376 | object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL); | |
1377 | } | |
1378 | ||
1379 | static const TypeInfo virtio_serial_pci_info = { | |
1380 | .name = TYPE_VIRTIO_SERIAL_PCI, | |
1381 | .parent = TYPE_VIRTIO_PCI, | |
1382 | .instance_size = sizeof(VirtIOSerialPCI), | |
1383 | .instance_init = virtio_serial_pci_instance_init, | |
1384 | .class_init = virtio_serial_pci_class_init, | |
1385 | }; | |
1386 | ||
e37da394 FK |
1387 | /* virtio-net-pci */ |
1388 | ||
1389 | static Property virtio_net_properties[] = { | |
1390 | DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, | |
1391 | VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, false), | |
1392 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 3), | |
1393 | DEFINE_VIRTIO_NET_FEATURES(VirtIOPCIProxy, host_features), | |
1394 | DEFINE_NIC_PROPERTIES(VirtIONetPCI, vdev.nic_conf), | |
1395 | DEFINE_VIRTIO_NET_PROPERTIES(VirtIONetPCI, vdev.net_conf), | |
1396 | DEFINE_PROP_END_OF_LIST(), | |
1397 | }; | |
1398 | ||
1399 | static int virtio_net_pci_init(VirtIOPCIProxy *vpci_dev) | |
1400 | { | |
800ced8c | 1401 | DeviceState *qdev = DEVICE(vpci_dev); |
e37da394 FK |
1402 | VirtIONetPCI *dev = VIRTIO_NET_PCI(vpci_dev); |
1403 | DeviceState *vdev = DEVICE(&dev->vdev); | |
1404 | ||
1405 | virtio_net_set_config_size(&dev->vdev, vpci_dev->host_features); | |
800ced8c FK |
1406 | virtio_net_set_netclient_name(&dev->vdev, qdev->id, |
1407 | object_get_typename(OBJECT(qdev))); | |
e37da394 FK |
1408 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
1409 | if (qdev_init(vdev) < 0) { | |
1410 | return -1; | |
1411 | } | |
1412 | return 0; | |
1413 | } | |
1414 | ||
1415 | static void virtio_net_pci_class_init(ObjectClass *klass, void *data) | |
1416 | { | |
1417 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1418 | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); | |
1419 | VirtioPCIClass *vpciklass = VIRTIO_PCI_CLASS(klass); | |
1420 | ||
1421 | k->romfile = "efi-virtio.rom"; | |
1422 | k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
1423 | k->device_id = PCI_DEVICE_ID_VIRTIO_NET; | |
1424 | k->revision = VIRTIO_PCI_ABI_VERSION; | |
1425 | k->class_id = PCI_CLASS_NETWORK_ETHERNET; | |
125ee0ed | 1426 | set_bit(DEVICE_CATEGORY_NETWORK, dc->categories); |
e37da394 FK |
1427 | dc->props = virtio_net_properties; |
1428 | vpciklass->init = virtio_net_pci_init; | |
1429 | } | |
1430 | ||
1431 | static void virtio_net_pci_instance_init(Object *obj) | |
1432 | { | |
1433 | VirtIONetPCI *dev = VIRTIO_NET_PCI(obj); | |
1434 | object_initialize(OBJECT(&dev->vdev), TYPE_VIRTIO_NET); | |
1435 | object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL); | |
1436 | } | |
1437 | ||
1438 | static const TypeInfo virtio_net_pci_info = { | |
1439 | .name = TYPE_VIRTIO_NET_PCI, | |
1440 | .parent = TYPE_VIRTIO_PCI, | |
1441 | .instance_size = sizeof(VirtIONetPCI), | |
1442 | .instance_init = virtio_net_pci_instance_init, | |
1443 | .class_init = virtio_net_pci_class_init, | |
1444 | }; | |
1445 | ||
59ccd20a FK |
1446 | /* virtio-rng-pci */ |
1447 | ||
1448 | static Property virtio_rng_pci_properties[] = { | |
1449 | DEFINE_VIRTIO_COMMON_FEATURES(VirtIOPCIProxy, host_features), | |
1450 | DEFINE_VIRTIO_RNG_PROPERTIES(VirtIORngPCI, vdev.conf), | |
1451 | DEFINE_PROP_END_OF_LIST(), | |
1452 | }; | |
1453 | ||
1454 | static int virtio_rng_pci_init(VirtIOPCIProxy *vpci_dev) | |
1455 | { | |
1456 | VirtIORngPCI *vrng = VIRTIO_RNG_PCI(vpci_dev); | |
1457 | DeviceState *vdev = DEVICE(&vrng->vdev); | |
1458 | ||
1459 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); | |
1460 | if (qdev_init(vdev) < 0) { | |
1461 | return -1; | |
1462 | } | |
1463 | ||
1464 | object_property_set_link(OBJECT(vrng), | |
5b456438 | 1465 | OBJECT(vrng->vdev.conf.rng), "rng", |
59ccd20a FK |
1466 | NULL); |
1467 | ||
1468 | return 0; | |
1469 | } | |
1470 | ||
1471 | static void virtio_rng_pci_class_init(ObjectClass *klass, void *data) | |
1472 | { | |
1473 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1474 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
1475 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
1476 | ||
1477 | k->init = virtio_rng_pci_init; | |
125ee0ed | 1478 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); |
59ccd20a FK |
1479 | dc->props = virtio_rng_pci_properties; |
1480 | ||
1481 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
1482 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_RNG; | |
1483 | pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; | |
1484 | pcidev_k->class_id = PCI_CLASS_OTHERS; | |
1485 | } | |
1486 | ||
1487 | static void virtio_rng_initfn(Object *obj) | |
1488 | { | |
1489 | VirtIORngPCI *dev = VIRTIO_RNG_PCI(obj); | |
1490 | object_initialize(OBJECT(&dev->vdev), TYPE_VIRTIO_RNG); | |
1491 | object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL); | |
1492 | object_property_add_link(obj, "rng", TYPE_RNG_BACKEND, | |
1493 | (Object **)&dev->vdev.conf.rng, NULL); | |
1494 | ||
1495 | } | |
1496 | ||
1497 | static const TypeInfo virtio_rng_pci_info = { | |
1498 | .name = TYPE_VIRTIO_RNG_PCI, | |
1499 | .parent = TYPE_VIRTIO_PCI, | |
1500 | .instance_size = sizeof(VirtIORngPCI), | |
1501 | .instance_init = virtio_rng_initfn, | |
1502 | .class_init = virtio_rng_pci_class_init, | |
1503 | }; | |
1504 | ||
0a2acf5e FK |
1505 | /* virtio-pci-bus */ |
1506 | ||
d51fcfac | 1507 | static void virtio_pci_bus_new(VirtioBusState *bus, VirtIOPCIProxy *dev) |
0a2acf5e FK |
1508 | { |
1509 | DeviceState *qdev = DEVICE(dev); | |
1510 | BusState *qbus; | |
f4dd69aa FK |
1511 | char virtio_bus_name[] = "virtio-bus"; |
1512 | ||
1513 | qbus_create_inplace((BusState *)bus, TYPE_VIRTIO_PCI_BUS, qdev, | |
1514 | virtio_bus_name); | |
0a2acf5e | 1515 | qbus = BUS(bus); |
cbd19063 | 1516 | qbus->allow_hotplug = 1; |
0a2acf5e FK |
1517 | } |
1518 | ||
1519 | static void virtio_pci_bus_class_init(ObjectClass *klass, void *data) | |
1520 | { | |
1521 | BusClass *bus_class = BUS_CLASS(klass); | |
1522 | VirtioBusClass *k = VIRTIO_BUS_CLASS(klass); | |
1523 | bus_class->max_dev = 1; | |
1524 | k->notify = virtio_pci_notify; | |
1525 | k->save_config = virtio_pci_save_config; | |
1526 | k->load_config = virtio_pci_load_config; | |
1527 | k->save_queue = virtio_pci_save_queue; | |
1528 | k->load_queue = virtio_pci_load_queue; | |
1529 | k->get_features = virtio_pci_get_features; | |
1530 | k->query_guest_notifiers = virtio_pci_query_guest_notifiers; | |
1531 | k->set_host_notifier = virtio_pci_set_host_notifier; | |
1532 | k->set_guest_notifiers = virtio_pci_set_guest_notifiers; | |
1533 | k->vmstate_change = virtio_pci_vmstate_change; | |
085bccb7 | 1534 | k->device_plugged = virtio_pci_device_plugged; |
0a2acf5e FK |
1535 | } |
1536 | ||
1537 | static const TypeInfo virtio_pci_bus_info = { | |
1538 | .name = TYPE_VIRTIO_PCI_BUS, | |
1539 | .parent = TYPE_VIRTIO_BUS, | |
1540 | .instance_size = sizeof(VirtioPCIBusState), | |
1541 | .class_init = virtio_pci_bus_class_init, | |
1542 | }; | |
1543 | ||
83f7d43a | 1544 | static void virtio_pci_register_types(void) |
53c25cea | 1545 | { |
59ccd20a | 1546 | type_register_static(&virtio_rng_pci_info); |
0a2acf5e | 1547 | type_register_static(&virtio_pci_bus_info); |
085bccb7 | 1548 | type_register_static(&virtio_pci_info); |
60653b28 | 1549 | #ifdef CONFIG_VIRTFS |
234a336f | 1550 | type_register_static(&virtio_9p_pci_info); |
60653b28 | 1551 | #endif |
653ced07 | 1552 | type_register_static(&virtio_blk_pci_info); |
bc7b90a0 | 1553 | type_register_static(&virtio_scsi_pci_info); |
e378e88d | 1554 | type_register_static(&virtio_balloon_pci_info); |
f7f7464a | 1555 | type_register_static(&virtio_serial_pci_info); |
e37da394 | 1556 | type_register_static(&virtio_net_pci_info); |
50787628 NB |
1557 | #ifdef CONFIG_VHOST_SCSI |
1558 | type_register_static(&vhost_scsi_pci_info); | |
1559 | #endif | |
53c25cea PB |
1560 | } |
1561 | ||
83f7d43a | 1562 | type_init(virtio_pci_register_types) |