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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 | ||
cbbe4f50 | 20 | #include "standard-headers/linux/virtio_pci.h" |
0d09e41a PB |
21 | #include "hw/virtio/virtio.h" |
22 | #include "hw/virtio/virtio-blk.h" | |
23 | #include "hw/virtio/virtio-net.h" | |
24 | #include "hw/virtio/virtio-serial.h" | |
25 | #include "hw/virtio/virtio-scsi.h" | |
26 | #include "hw/virtio/virtio-balloon.h" | |
f958c8aa | 27 | #include "hw/virtio/virtio-input.h" |
83c9f4ca | 28 | #include "hw/pci/pci.h" |
1de7afc9 | 29 | #include "qemu/error-report.h" |
83c9f4ca PB |
30 | #include "hw/pci/msi.h" |
31 | #include "hw/pci/msix.h" | |
32 | #include "hw/loader.h" | |
9c17d615 | 33 | #include "sysemu/kvm.h" |
4be74634 | 34 | #include "sysemu/block-backend.h" |
47b43a1f | 35 | #include "virtio-pci.h" |
1de7afc9 | 36 | #include "qemu/range.h" |
0d09e41a | 37 | #include "hw/virtio/virtio-bus.h" |
24a6e7f4 | 38 | #include "qapi/visitor.h" |
53c25cea | 39 | |
cbbe4f50 | 40 | #define VIRTIO_PCI_REGION_SIZE(dev) VIRTIO_PCI_CONFIG_OFF(msix_present(dev)) |
aba800a3 | 41 | |
c17bef33 MT |
42 | #undef VIRTIO_PCI_CONFIG |
43 | ||
aba800a3 MT |
44 | /* The remaining space is defined by each driver as the per-driver |
45 | * configuration space */ | |
cbbe4f50 | 46 | #define VIRTIO_PCI_CONFIG_SIZE(dev) VIRTIO_PCI_CONFIG_OFF(msix_enabled(dev)) |
53c25cea | 47 | |
ac7af112 AF |
48 | static void virtio_pci_bus_new(VirtioBusState *bus, size_t bus_size, |
49 | VirtIOPCIProxy *dev); | |
d51fcfac | 50 | |
53c25cea | 51 | /* virtio device */ |
d2a0ccc6 MT |
52 | /* DeviceState to VirtIOPCIProxy. For use off data-path. TODO: use QOM. */ |
53 | static inline VirtIOPCIProxy *to_virtio_pci_proxy(DeviceState *d) | |
54 | { | |
55 | return container_of(d, VirtIOPCIProxy, pci_dev.qdev); | |
56 | } | |
53c25cea | 57 | |
d2a0ccc6 MT |
58 | /* DeviceState to VirtIOPCIProxy. Note: used on datapath, |
59 | * be careful and test performance if you change this. | |
60 | */ | |
61 | static inline VirtIOPCIProxy *to_virtio_pci_proxy_fast(DeviceState *d) | |
53c25cea | 62 | { |
d2a0ccc6 MT |
63 | return container_of(d, VirtIOPCIProxy, pci_dev.qdev); |
64 | } | |
65 | ||
66 | static void virtio_pci_notify(DeviceState *d, uint16_t vector) | |
67 | { | |
68 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy_fast(d); | |
a3fc66d9 | 69 | |
aba800a3 MT |
70 | if (msix_enabled(&proxy->pci_dev)) |
71 | msix_notify(&proxy->pci_dev, vector); | |
a3fc66d9 PB |
72 | else { |
73 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); | |
74 | pci_set_irq(&proxy->pci_dev, vdev->isr & 1); | |
75 | } | |
53c25cea PB |
76 | } |
77 | ||
d2a0ccc6 | 78 | static void virtio_pci_save_config(DeviceState *d, QEMUFile *f) |
ff24bd58 | 79 | { |
d2a0ccc6 | 80 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
a3fc66d9 PB |
81 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
82 | ||
ff24bd58 MT |
83 | pci_device_save(&proxy->pci_dev, f); |
84 | msix_save(&proxy->pci_dev, f); | |
85 | if (msix_present(&proxy->pci_dev)) | |
a3fc66d9 | 86 | qemu_put_be16(f, vdev->config_vector); |
ff24bd58 MT |
87 | } |
88 | ||
d2a0ccc6 | 89 | static void virtio_pci_save_queue(DeviceState *d, int n, QEMUFile *f) |
ff24bd58 | 90 | { |
d2a0ccc6 | 91 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
a3fc66d9 PB |
92 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
93 | ||
ff24bd58 | 94 | if (msix_present(&proxy->pci_dev)) |
a3fc66d9 | 95 | qemu_put_be16(f, virtio_queue_vector(vdev, n)); |
ff24bd58 MT |
96 | } |
97 | ||
d2a0ccc6 | 98 | static int virtio_pci_load_config(DeviceState *d, QEMUFile *f) |
ff24bd58 | 99 | { |
d2a0ccc6 | 100 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
a3fc66d9 PB |
101 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
102 | ||
ff24bd58 MT |
103 | int ret; |
104 | ret = pci_device_load(&proxy->pci_dev, f); | |
e6da7680 | 105 | if (ret) { |
ff24bd58 | 106 | return ret; |
e6da7680 | 107 | } |
3cac001e | 108 | msix_unuse_all_vectors(&proxy->pci_dev); |
ff24bd58 | 109 | msix_load(&proxy->pci_dev, f); |
e6da7680 | 110 | if (msix_present(&proxy->pci_dev)) { |
a3fc66d9 | 111 | qemu_get_be16s(f, &vdev->config_vector); |
e6da7680 | 112 | } else { |
a3fc66d9 | 113 | vdev->config_vector = VIRTIO_NO_VECTOR; |
e6da7680 | 114 | } |
a3fc66d9 PB |
115 | if (vdev->config_vector != VIRTIO_NO_VECTOR) { |
116 | return msix_vector_use(&proxy->pci_dev, vdev->config_vector); | |
e6da7680 | 117 | } |
ff24bd58 MT |
118 | return 0; |
119 | } | |
120 | ||
d2a0ccc6 | 121 | static int virtio_pci_load_queue(DeviceState *d, int n, QEMUFile *f) |
ff24bd58 | 122 | { |
d2a0ccc6 | 123 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
a3fc66d9 PB |
124 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
125 | ||
ff24bd58 | 126 | uint16_t vector; |
e6da7680 MT |
127 | if (msix_present(&proxy->pci_dev)) { |
128 | qemu_get_be16s(f, &vector); | |
129 | } else { | |
130 | vector = VIRTIO_NO_VECTOR; | |
131 | } | |
a3fc66d9 | 132 | virtio_queue_set_vector(vdev, n, vector); |
e6da7680 MT |
133 | if (vector != VIRTIO_NO_VECTOR) { |
134 | return msix_vector_use(&proxy->pci_dev, vector); | |
135 | } | |
ff24bd58 MT |
136 | return 0; |
137 | } | |
138 | ||
975acc0a JW |
139 | #define QEMU_VIRTIO_PCI_QUEUE_MEM_MULT 0x1000 |
140 | ||
25db9ebe | 141 | static int virtio_pci_set_host_notifier_internal(VirtIOPCIProxy *proxy, |
26b9b5fe | 142 | int n, bool assign, bool set_handler) |
25db9ebe | 143 | { |
a3fc66d9 PB |
144 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
145 | VirtQueue *vq = virtio_get_queue(vdev, n); | |
25db9ebe | 146 | EventNotifier *notifier = virtio_queue_get_host_notifier(vq); |
975acc0a JW |
147 | bool legacy = !(proxy->flags & VIRTIO_PCI_FLAG_DISABLE_LEGACY); |
148 | bool modern = !(proxy->flags & VIRTIO_PCI_FLAG_DISABLE_MODERN); | |
588255ad | 149 | MemoryRegion *modern_mr = &proxy->notify.mr; |
975acc0a JW |
150 | MemoryRegion *legacy_mr = &proxy->bar; |
151 | hwaddr modern_addr = QEMU_VIRTIO_PCI_QUEUE_MEM_MULT * | |
152 | virtio_get_queue_index(vq); | |
153 | hwaddr legacy_addr = VIRTIO_PCI_QUEUE_NOTIFY; | |
da146d0a AK |
154 | int r = 0; |
155 | ||
25db9ebe SH |
156 | if (assign) { |
157 | r = event_notifier_init(notifier, 1); | |
158 | if (r < 0) { | |
b36e3914 MT |
159 | error_report("%s: unable to init event notifier: %d", |
160 | __func__, r); | |
25db9ebe SH |
161 | return r; |
162 | } | |
26b9b5fe | 163 | virtio_queue_set_host_notifier_fd_handler(vq, true, set_handler); |
975acc0a JW |
164 | if (modern) { |
165 | memory_region_add_eventfd(modern_mr, modern_addr, 2, | |
166 | true, n, notifier); | |
167 | } | |
168 | if (legacy) { | |
169 | memory_region_add_eventfd(legacy_mr, legacy_addr, 2, | |
170 | true, n, notifier); | |
171 | } | |
25db9ebe | 172 | } else { |
975acc0a JW |
173 | if (modern) { |
174 | memory_region_del_eventfd(modern_mr, modern_addr, 2, | |
175 | true, n, notifier); | |
176 | } | |
177 | if (legacy) { | |
178 | memory_region_del_eventfd(legacy_mr, legacy_addr, 2, | |
179 | true, n, notifier); | |
180 | } | |
26b9b5fe | 181 | virtio_queue_set_host_notifier_fd_handler(vq, false, false); |
25db9ebe SH |
182 | event_notifier_cleanup(notifier); |
183 | } | |
184 | return r; | |
185 | } | |
186 | ||
b36e3914 | 187 | static void virtio_pci_start_ioeventfd(VirtIOPCIProxy *proxy) |
25db9ebe | 188 | { |
a3fc66d9 | 189 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
25db9ebe SH |
190 | int n, r; |
191 | ||
192 | if (!(proxy->flags & VIRTIO_PCI_FLAG_USE_IOEVENTFD) || | |
193 | proxy->ioeventfd_disabled || | |
194 | proxy->ioeventfd_started) { | |
b36e3914 | 195 | return; |
25db9ebe SH |
196 | } |
197 | ||
87b3bd1c | 198 | for (n = 0; n < VIRTIO_QUEUE_MAX; n++) { |
a3fc66d9 | 199 | if (!virtio_queue_get_num(vdev, n)) { |
25db9ebe SH |
200 | continue; |
201 | } | |
202 | ||
26b9b5fe | 203 | r = virtio_pci_set_host_notifier_internal(proxy, n, true, true); |
25db9ebe SH |
204 | if (r < 0) { |
205 | goto assign_error; | |
206 | } | |
25db9ebe SH |
207 | } |
208 | proxy->ioeventfd_started = true; | |
b36e3914 | 209 | return; |
25db9ebe SH |
210 | |
211 | assign_error: | |
212 | while (--n >= 0) { | |
a3fc66d9 | 213 | if (!virtio_queue_get_num(vdev, n)) { |
25db9ebe SH |
214 | continue; |
215 | } | |
216 | ||
26b9b5fe | 217 | r = virtio_pci_set_host_notifier_internal(proxy, n, false, false); |
b36e3914 | 218 | assert(r >= 0); |
25db9ebe SH |
219 | } |
220 | proxy->ioeventfd_started = false; | |
b36e3914 | 221 | error_report("%s: failed. Fallback to a userspace (slower).", __func__); |
25db9ebe SH |
222 | } |
223 | ||
b36e3914 | 224 | static void virtio_pci_stop_ioeventfd(VirtIOPCIProxy *proxy) |
25db9ebe | 225 | { |
a3fc66d9 | 226 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
b36e3914 | 227 | int r; |
25db9ebe SH |
228 | int n; |
229 | ||
230 | if (!proxy->ioeventfd_started) { | |
b36e3914 | 231 | return; |
25db9ebe SH |
232 | } |
233 | ||
87b3bd1c | 234 | for (n = 0; n < VIRTIO_QUEUE_MAX; n++) { |
a3fc66d9 | 235 | if (!virtio_queue_get_num(vdev, n)) { |
25db9ebe SH |
236 | continue; |
237 | } | |
238 | ||
26b9b5fe | 239 | r = virtio_pci_set_host_notifier_internal(proxy, n, false, false); |
b36e3914 | 240 | assert(r >= 0); |
25db9ebe SH |
241 | } |
242 | proxy->ioeventfd_started = false; | |
25db9ebe SH |
243 | } |
244 | ||
53c25cea PB |
245 | static void virtio_ioport_write(void *opaque, uint32_t addr, uint32_t val) |
246 | { | |
247 | VirtIOPCIProxy *proxy = opaque; | |
a3fc66d9 | 248 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
a8170e5e | 249 | hwaddr pa; |
53c25cea | 250 | |
53c25cea PB |
251 | switch (addr) { |
252 | case VIRTIO_PCI_GUEST_FEATURES: | |
181103cd FK |
253 | /* Guest does not negotiate properly? We have to assume nothing. */ |
254 | if (val & (1 << VIRTIO_F_BAD_FEATURE)) { | |
255 | val = virtio_bus_get_vdev_bad_features(&proxy->bus); | |
256 | } | |
ad0c9332 | 257 | virtio_set_features(vdev, val); |
53c25cea PB |
258 | break; |
259 | case VIRTIO_PCI_QUEUE_PFN: | |
a8170e5e | 260 | pa = (hwaddr)val << VIRTIO_PCI_QUEUE_ADDR_SHIFT; |
1b8e9b27 | 261 | if (pa == 0) { |
25db9ebe | 262 | virtio_pci_stop_ioeventfd(proxy); |
a3fc66d9 | 263 | virtio_reset(vdev); |
1b8e9b27 MT |
264 | msix_unuse_all_vectors(&proxy->pci_dev); |
265 | } | |
7055e687 MT |
266 | else |
267 | virtio_queue_set_addr(vdev, vdev->queue_sel, pa); | |
53c25cea PB |
268 | break; |
269 | case VIRTIO_PCI_QUEUE_SEL: | |
87b3bd1c | 270 | if (val < VIRTIO_QUEUE_MAX) |
53c25cea PB |
271 | vdev->queue_sel = val; |
272 | break; | |
273 | case VIRTIO_PCI_QUEUE_NOTIFY: | |
87b3bd1c | 274 | if (val < VIRTIO_QUEUE_MAX) { |
7157e2e2 SH |
275 | virtio_queue_notify(vdev, val); |
276 | } | |
53c25cea PB |
277 | break; |
278 | case VIRTIO_PCI_STATUS: | |
25db9ebe SH |
279 | if (!(val & VIRTIO_CONFIG_S_DRIVER_OK)) { |
280 | virtio_pci_stop_ioeventfd(proxy); | |
281 | } | |
282 | ||
3e607cb5 | 283 | virtio_set_status(vdev, val & 0xFF); |
25db9ebe SH |
284 | |
285 | if (val & VIRTIO_CONFIG_S_DRIVER_OK) { | |
286 | virtio_pci_start_ioeventfd(proxy); | |
287 | } | |
288 | ||
1b8e9b27 | 289 | if (vdev->status == 0) { |
a3fc66d9 | 290 | virtio_reset(vdev); |
1b8e9b27 MT |
291 | msix_unuse_all_vectors(&proxy->pci_dev); |
292 | } | |
c81131db | 293 | |
e43c0b2e MT |
294 | /* Linux before 2.6.34 drives the device without enabling |
295 | the PCI device bus master bit. Enable it automatically | |
296 | for the guest. This is a PCI spec violation but so is | |
297 | initiating DMA with bus master bit clear. */ | |
298 | if (val == (VIRTIO_CONFIG_S_ACKNOWLEDGE | VIRTIO_CONFIG_S_DRIVER)) { | |
299 | pci_default_write_config(&proxy->pci_dev, PCI_COMMAND, | |
300 | proxy->pci_dev.config[PCI_COMMAND] | | |
301 | PCI_COMMAND_MASTER, 1); | |
302 | } | |
53c25cea | 303 | break; |
aba800a3 MT |
304 | case VIRTIO_MSI_CONFIG_VECTOR: |
305 | msix_vector_unuse(&proxy->pci_dev, vdev->config_vector); | |
306 | /* Make it possible for guest to discover an error took place. */ | |
307 | if (msix_vector_use(&proxy->pci_dev, val) < 0) | |
308 | val = VIRTIO_NO_VECTOR; | |
309 | vdev->config_vector = val; | |
310 | break; | |
311 | case VIRTIO_MSI_QUEUE_VECTOR: | |
312 | msix_vector_unuse(&proxy->pci_dev, | |
313 | virtio_queue_vector(vdev, vdev->queue_sel)); | |
314 | /* Make it possible for guest to discover an error took place. */ | |
315 | if (msix_vector_use(&proxy->pci_dev, val) < 0) | |
316 | val = VIRTIO_NO_VECTOR; | |
317 | virtio_queue_set_vector(vdev, vdev->queue_sel, val); | |
318 | break; | |
319 | default: | |
4e02d460 SH |
320 | error_report("%s: unexpected address 0x%x value 0x%x", |
321 | __func__, addr, val); | |
aba800a3 | 322 | break; |
53c25cea PB |
323 | } |
324 | } | |
325 | ||
aba800a3 | 326 | static uint32_t virtio_ioport_read(VirtIOPCIProxy *proxy, uint32_t addr) |
53c25cea | 327 | { |
a3fc66d9 | 328 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
53c25cea PB |
329 | uint32_t ret = 0xFFFFFFFF; |
330 | ||
53c25cea PB |
331 | switch (addr) { |
332 | case VIRTIO_PCI_HOST_FEATURES: | |
6b8f1020 | 333 | ret = vdev->host_features; |
53c25cea PB |
334 | break; |
335 | case VIRTIO_PCI_GUEST_FEATURES: | |
704a76fc | 336 | ret = vdev->guest_features; |
53c25cea PB |
337 | break; |
338 | case VIRTIO_PCI_QUEUE_PFN: | |
339 | ret = virtio_queue_get_addr(vdev, vdev->queue_sel) | |
340 | >> VIRTIO_PCI_QUEUE_ADDR_SHIFT; | |
341 | break; | |
342 | case VIRTIO_PCI_QUEUE_NUM: | |
343 | ret = virtio_queue_get_num(vdev, vdev->queue_sel); | |
344 | break; | |
345 | case VIRTIO_PCI_QUEUE_SEL: | |
346 | ret = vdev->queue_sel; | |
347 | break; | |
348 | case VIRTIO_PCI_STATUS: | |
349 | ret = vdev->status; | |
350 | break; | |
351 | case VIRTIO_PCI_ISR: | |
352 | /* reading from the ISR also clears it. */ | |
353 | ret = vdev->isr; | |
354 | vdev->isr = 0; | |
9e64f8a3 | 355 | pci_irq_deassert(&proxy->pci_dev); |
53c25cea | 356 | break; |
aba800a3 MT |
357 | case VIRTIO_MSI_CONFIG_VECTOR: |
358 | ret = vdev->config_vector; | |
359 | break; | |
360 | case VIRTIO_MSI_QUEUE_VECTOR: | |
361 | ret = virtio_queue_vector(vdev, vdev->queue_sel); | |
362 | break; | |
53c25cea PB |
363 | default: |
364 | break; | |
365 | } | |
366 | ||
367 | return ret; | |
368 | } | |
369 | ||
df6db5b3 AG |
370 | static uint64_t virtio_pci_config_read(void *opaque, hwaddr addr, |
371 | unsigned size) | |
53c25cea PB |
372 | { |
373 | VirtIOPCIProxy *proxy = opaque; | |
a3fc66d9 | 374 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
cbbe4f50 | 375 | uint32_t config = VIRTIO_PCI_CONFIG_SIZE(&proxy->pci_dev); |
df6db5b3 | 376 | uint64_t val = 0; |
aba800a3 | 377 | if (addr < config) { |
df6db5b3 | 378 | return virtio_ioport_read(proxy, addr); |
aba800a3 MT |
379 | } |
380 | addr -= config; | |
53c25cea | 381 | |
df6db5b3 AG |
382 | switch (size) { |
383 | case 1: | |
a3fc66d9 | 384 | val = virtio_config_readb(vdev, addr); |
df6db5b3 AG |
385 | break; |
386 | case 2: | |
a3fc66d9 | 387 | val = virtio_config_readw(vdev, addr); |
616a6552 | 388 | if (virtio_is_big_endian(vdev)) { |
8e4a424b BS |
389 | val = bswap16(val); |
390 | } | |
df6db5b3 AG |
391 | break; |
392 | case 4: | |
a3fc66d9 | 393 | val = virtio_config_readl(vdev, addr); |
616a6552 | 394 | if (virtio_is_big_endian(vdev)) { |
8e4a424b BS |
395 | val = bswap32(val); |
396 | } | |
df6db5b3 | 397 | break; |
82afa586 | 398 | } |
df6db5b3 | 399 | return val; |
53c25cea PB |
400 | } |
401 | ||
df6db5b3 AG |
402 | static void virtio_pci_config_write(void *opaque, hwaddr addr, |
403 | uint64_t val, unsigned size) | |
53c25cea PB |
404 | { |
405 | VirtIOPCIProxy *proxy = opaque; | |
cbbe4f50 | 406 | uint32_t config = VIRTIO_PCI_CONFIG_SIZE(&proxy->pci_dev); |
a3fc66d9 | 407 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
aba800a3 MT |
408 | if (addr < config) { |
409 | virtio_ioport_write(proxy, addr, val); | |
410 | return; | |
411 | } | |
412 | addr -= config; | |
df6db5b3 AG |
413 | /* |
414 | * Virtio-PCI is odd. Ioports are LE but config space is target native | |
415 | * endian. | |
416 | */ | |
417 | switch (size) { | |
418 | case 1: | |
a3fc66d9 | 419 | virtio_config_writeb(vdev, addr, val); |
df6db5b3 AG |
420 | break; |
421 | case 2: | |
616a6552 | 422 | if (virtio_is_big_endian(vdev)) { |
8e4a424b BS |
423 | val = bswap16(val); |
424 | } | |
a3fc66d9 | 425 | virtio_config_writew(vdev, addr, val); |
df6db5b3 AG |
426 | break; |
427 | case 4: | |
616a6552 | 428 | if (virtio_is_big_endian(vdev)) { |
8e4a424b BS |
429 | val = bswap32(val); |
430 | } | |
a3fc66d9 | 431 | virtio_config_writel(vdev, addr, val); |
df6db5b3 | 432 | break; |
82afa586 | 433 | } |
53c25cea PB |
434 | } |
435 | ||
da146d0a | 436 | static const MemoryRegionOps virtio_pci_config_ops = { |
df6db5b3 AG |
437 | .read = virtio_pci_config_read, |
438 | .write = virtio_pci_config_write, | |
439 | .impl = { | |
440 | .min_access_size = 1, | |
441 | .max_access_size = 4, | |
442 | }, | |
8e4a424b | 443 | .endianness = DEVICE_LITTLE_ENDIAN, |
da146d0a | 444 | }; |
aba800a3 MT |
445 | |
446 | static void virtio_write_config(PCIDevice *pci_dev, uint32_t address, | |
447 | uint32_t val, int len) | |
448 | { | |
ed757e14 | 449 | VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev); |
a3fc66d9 | 450 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
ed757e14 | 451 | |
1129714f MT |
452 | pci_default_write_config(pci_dev, address, val, len); |
453 | ||
454 | if (range_covers_byte(address, len, PCI_COMMAND) && | |
68a27b20 | 455 | !(pci_dev->config[PCI_COMMAND] & PCI_COMMAND_MASTER)) { |
1129714f | 456 | virtio_pci_stop_ioeventfd(proxy); |
45363e46 | 457 | virtio_set_status(vdev, vdev->status & ~VIRTIO_CONFIG_S_DRIVER_OK); |
ed757e14 | 458 | } |
53c25cea PB |
459 | } |
460 | ||
7d37d351 JK |
461 | static int kvm_virtio_pci_vq_vector_use(VirtIOPCIProxy *proxy, |
462 | unsigned int queue_no, | |
463 | unsigned int vector, | |
464 | MSIMessage msg) | |
465 | { | |
7d37d351 | 466 | VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector]; |
15b2bd18 | 467 | int ret; |
7d37d351 JK |
468 | |
469 | if (irqfd->users == 0) { | |
470 | ret = kvm_irqchip_add_msi_route(kvm_state, msg); | |
471 | if (ret < 0) { | |
472 | return ret; | |
473 | } | |
474 | irqfd->virq = ret; | |
475 | } | |
476 | irqfd->users++; | |
7d37d351 JK |
477 | return 0; |
478 | } | |
479 | ||
480 | static void kvm_virtio_pci_vq_vector_release(VirtIOPCIProxy *proxy, | |
7d37d351 | 481 | unsigned int vector) |
774345f9 MT |
482 | { |
483 | VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector]; | |
484 | if (--irqfd->users == 0) { | |
485 | kvm_irqchip_release_virq(kvm_state, irqfd->virq); | |
486 | } | |
487 | } | |
488 | ||
f1d0f15a MT |
489 | static int kvm_virtio_pci_irqfd_use(VirtIOPCIProxy *proxy, |
490 | unsigned int queue_no, | |
491 | unsigned int vector) | |
492 | { | |
493 | VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector]; | |
a3fc66d9 PB |
494 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
495 | VirtQueue *vq = virtio_get_queue(vdev, queue_no); | |
f1d0f15a MT |
496 | EventNotifier *n = virtio_queue_get_guest_notifier(vq); |
497 | int ret; | |
ca916d37 | 498 | ret = kvm_irqchip_add_irqfd_notifier(kvm_state, n, NULL, irqfd->virq); |
f1d0f15a MT |
499 | return ret; |
500 | } | |
501 | ||
502 | static void kvm_virtio_pci_irqfd_release(VirtIOPCIProxy *proxy, | |
503 | unsigned int queue_no, | |
504 | unsigned int vector) | |
7d37d351 | 505 | { |
a3fc66d9 PB |
506 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
507 | VirtQueue *vq = virtio_get_queue(vdev, queue_no); | |
15b2bd18 | 508 | EventNotifier *n = virtio_queue_get_guest_notifier(vq); |
7d37d351 | 509 | VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector]; |
15b2bd18 | 510 | int ret; |
7d37d351 | 511 | |
b131c74a | 512 | ret = kvm_irqchip_remove_irqfd_notifier(kvm_state, n, irqfd->virq); |
7d37d351 | 513 | assert(ret == 0); |
f1d0f15a | 514 | } |
7d37d351 | 515 | |
774345f9 MT |
516 | static int kvm_virtio_pci_vector_use(VirtIOPCIProxy *proxy, int nvqs) |
517 | { | |
518 | PCIDevice *dev = &proxy->pci_dev; | |
a3fc66d9 | 519 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
181103cd | 520 | VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); |
774345f9 MT |
521 | unsigned int vector; |
522 | int ret, queue_no; | |
523 | MSIMessage msg; | |
524 | ||
525 | for (queue_no = 0; queue_no < nvqs; queue_no++) { | |
526 | if (!virtio_queue_get_num(vdev, queue_no)) { | |
527 | break; | |
528 | } | |
529 | vector = virtio_queue_vector(vdev, queue_no); | |
530 | if (vector >= msix_nr_vectors_allocated(dev)) { | |
531 | continue; | |
532 | } | |
533 | msg = msix_get_message(dev, vector); | |
534 | ret = kvm_virtio_pci_vq_vector_use(proxy, queue_no, vector, msg); | |
535 | if (ret < 0) { | |
536 | goto undo; | |
7d37d351 | 537 | } |
f1d0f15a MT |
538 | /* If guest supports masking, set up irqfd now. |
539 | * Otherwise, delay until unmasked in the frontend. | |
540 | */ | |
181103cd | 541 | if (k->guest_notifier_mask) { |
f1d0f15a MT |
542 | ret = kvm_virtio_pci_irqfd_use(proxy, queue_no, vector); |
543 | if (ret < 0) { | |
544 | kvm_virtio_pci_vq_vector_release(proxy, vector); | |
545 | goto undo; | |
546 | } | |
547 | } | |
7d37d351 | 548 | } |
7d37d351 | 549 | return 0; |
774345f9 MT |
550 | |
551 | undo: | |
552 | while (--queue_no >= 0) { | |
553 | vector = virtio_queue_vector(vdev, queue_no); | |
554 | if (vector >= msix_nr_vectors_allocated(dev)) { | |
555 | continue; | |
556 | } | |
181103cd | 557 | if (k->guest_notifier_mask) { |
e387f99e | 558 | kvm_virtio_pci_irqfd_release(proxy, queue_no, vector); |
f1d0f15a | 559 | } |
774345f9 MT |
560 | kvm_virtio_pci_vq_vector_release(proxy, vector); |
561 | } | |
562 | return ret; | |
7d37d351 JK |
563 | } |
564 | ||
774345f9 MT |
565 | static void kvm_virtio_pci_vector_release(VirtIOPCIProxy *proxy, int nvqs) |
566 | { | |
567 | PCIDevice *dev = &proxy->pci_dev; | |
a3fc66d9 | 568 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
774345f9 MT |
569 | unsigned int vector; |
570 | int queue_no; | |
181103cd | 571 | VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); |
774345f9 MT |
572 | |
573 | for (queue_no = 0; queue_no < nvqs; queue_no++) { | |
574 | if (!virtio_queue_get_num(vdev, queue_no)) { | |
575 | break; | |
576 | } | |
577 | vector = virtio_queue_vector(vdev, queue_no); | |
578 | if (vector >= msix_nr_vectors_allocated(dev)) { | |
579 | continue; | |
580 | } | |
f1d0f15a MT |
581 | /* If guest supports masking, clean up irqfd now. |
582 | * Otherwise, it was cleaned when masked in the frontend. | |
583 | */ | |
181103cd | 584 | if (k->guest_notifier_mask) { |
e387f99e | 585 | kvm_virtio_pci_irqfd_release(proxy, queue_no, vector); |
f1d0f15a | 586 | } |
774345f9 MT |
587 | kvm_virtio_pci_vq_vector_release(proxy, vector); |
588 | } | |
589 | } | |
590 | ||
a38b2c49 MT |
591 | static int virtio_pci_vq_vector_unmask(VirtIOPCIProxy *proxy, |
592 | unsigned int queue_no, | |
593 | unsigned int vector, | |
594 | MSIMessage msg) | |
774345f9 | 595 | { |
a3fc66d9 PB |
596 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
597 | VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); | |
598 | VirtQueue *vq = virtio_get_queue(vdev, queue_no); | |
774345f9 | 599 | EventNotifier *n = virtio_queue_get_guest_notifier(vq); |
a38b2c49 | 600 | VirtIOIRQFD *irqfd; |
53510bfc | 601 | int ret = 0; |
774345f9 | 602 | |
a38b2c49 MT |
603 | if (proxy->vector_irqfd) { |
604 | irqfd = &proxy->vector_irqfd[vector]; | |
605 | if (irqfd->msg.data != msg.data || irqfd->msg.address != msg.address) { | |
606 | ret = kvm_irqchip_update_msi_route(kvm_state, irqfd->virq, msg); | |
607 | if (ret < 0) { | |
608 | return ret; | |
609 | } | |
774345f9 MT |
610 | } |
611 | } | |
612 | ||
f1d0f15a MT |
613 | /* If guest supports masking, irqfd is already setup, unmask it. |
614 | * Otherwise, set it up now. | |
615 | */ | |
181103cd | 616 | if (k->guest_notifier_mask) { |
a3fc66d9 | 617 | k->guest_notifier_mask(vdev, queue_no, false); |
f1d0f15a | 618 | /* Test after unmasking to avoid losing events. */ |
181103cd | 619 | if (k->guest_notifier_pending && |
a3fc66d9 | 620 | k->guest_notifier_pending(vdev, queue_no)) { |
f1d0f15a MT |
621 | event_notifier_set(n); |
622 | } | |
623 | } else { | |
624 | ret = kvm_virtio_pci_irqfd_use(proxy, queue_no, vector); | |
7d37d351 | 625 | } |
774345f9 | 626 | return ret; |
7d37d351 JK |
627 | } |
628 | ||
a38b2c49 | 629 | static void virtio_pci_vq_vector_mask(VirtIOPCIProxy *proxy, |
7d37d351 JK |
630 | unsigned int queue_no, |
631 | unsigned int vector) | |
632 | { | |
a3fc66d9 PB |
633 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
634 | VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); | |
181103cd | 635 | |
f1d0f15a MT |
636 | /* If guest supports masking, keep irqfd but mask it. |
637 | * Otherwise, clean it up now. | |
638 | */ | |
181103cd | 639 | if (k->guest_notifier_mask) { |
a3fc66d9 | 640 | k->guest_notifier_mask(vdev, queue_no, true); |
f1d0f15a | 641 | } else { |
e387f99e | 642 | kvm_virtio_pci_irqfd_release(proxy, queue_no, vector); |
f1d0f15a | 643 | } |
7d37d351 JK |
644 | } |
645 | ||
a38b2c49 MT |
646 | static int virtio_pci_vector_unmask(PCIDevice *dev, unsigned vector, |
647 | MSIMessage msg) | |
7d37d351 JK |
648 | { |
649 | VirtIOPCIProxy *proxy = container_of(dev, VirtIOPCIProxy, pci_dev); | |
a3fc66d9 | 650 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
851c2a75 JW |
651 | VirtQueue *vq = virtio_vector_first_queue(vdev, vector); |
652 | int ret, index, unmasked = 0; | |
7d37d351 | 653 | |
851c2a75 JW |
654 | while (vq) { |
655 | index = virtio_get_queue_index(vq); | |
656 | if (!virtio_queue_get_num(vdev, index)) { | |
7d37d351 JK |
657 | break; |
658 | } | |
6652d081 JW |
659 | if (index < proxy->nvqs_with_notifiers) { |
660 | ret = virtio_pci_vq_vector_unmask(proxy, index, vector, msg); | |
661 | if (ret < 0) { | |
662 | goto undo; | |
663 | } | |
664 | ++unmasked; | |
7d37d351 | 665 | } |
851c2a75 | 666 | vq = virtio_vector_next_queue(vq); |
7d37d351 | 667 | } |
851c2a75 | 668 | |
7d37d351 JK |
669 | return 0; |
670 | ||
671 | undo: | |
851c2a75 | 672 | vq = virtio_vector_first_queue(vdev, vector); |
6652d081 | 673 | while (vq && unmasked >= 0) { |
851c2a75 | 674 | index = virtio_get_queue_index(vq); |
6652d081 JW |
675 | if (index < proxy->nvqs_with_notifiers) { |
676 | virtio_pci_vq_vector_mask(proxy, index, vector); | |
677 | --unmasked; | |
678 | } | |
851c2a75 | 679 | vq = virtio_vector_next_queue(vq); |
7d37d351 JK |
680 | } |
681 | return ret; | |
682 | } | |
683 | ||
a38b2c49 | 684 | static void virtio_pci_vector_mask(PCIDevice *dev, unsigned vector) |
7d37d351 JK |
685 | { |
686 | VirtIOPCIProxy *proxy = container_of(dev, VirtIOPCIProxy, pci_dev); | |
a3fc66d9 | 687 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
851c2a75 JW |
688 | VirtQueue *vq = virtio_vector_first_queue(vdev, vector); |
689 | int index; | |
7d37d351 | 690 | |
851c2a75 JW |
691 | while (vq) { |
692 | index = virtio_get_queue_index(vq); | |
693 | if (!virtio_queue_get_num(vdev, index)) { | |
7d37d351 JK |
694 | break; |
695 | } | |
6652d081 JW |
696 | if (index < proxy->nvqs_with_notifiers) { |
697 | virtio_pci_vq_vector_mask(proxy, index, vector); | |
698 | } | |
851c2a75 | 699 | vq = virtio_vector_next_queue(vq); |
7d37d351 JK |
700 | } |
701 | } | |
702 | ||
a38b2c49 MT |
703 | static void virtio_pci_vector_poll(PCIDevice *dev, |
704 | unsigned int vector_start, | |
705 | unsigned int vector_end) | |
89d62be9 MT |
706 | { |
707 | VirtIOPCIProxy *proxy = container_of(dev, VirtIOPCIProxy, pci_dev); | |
a3fc66d9 | 708 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
181103cd | 709 | VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); |
89d62be9 MT |
710 | int queue_no; |
711 | unsigned int vector; | |
712 | EventNotifier *notifier; | |
713 | VirtQueue *vq; | |
714 | ||
2d620f59 | 715 | for (queue_no = 0; queue_no < proxy->nvqs_with_notifiers; queue_no++) { |
89d62be9 MT |
716 | if (!virtio_queue_get_num(vdev, queue_no)) { |
717 | break; | |
718 | } | |
719 | vector = virtio_queue_vector(vdev, queue_no); | |
720 | if (vector < vector_start || vector >= vector_end || | |
721 | !msix_is_masked(dev, vector)) { | |
722 | continue; | |
723 | } | |
724 | vq = virtio_get_queue(vdev, queue_no); | |
725 | notifier = virtio_queue_get_guest_notifier(vq); | |
181103cd FK |
726 | if (k->guest_notifier_pending) { |
727 | if (k->guest_notifier_pending(vdev, queue_no)) { | |
f1d0f15a MT |
728 | msix_set_pending(dev, vector); |
729 | } | |
730 | } else if (event_notifier_test_and_clear(notifier)) { | |
89d62be9 MT |
731 | msix_set_pending(dev, vector); |
732 | } | |
733 | } | |
734 | } | |
735 | ||
736 | static int virtio_pci_set_guest_notifier(DeviceState *d, int n, bool assign, | |
737 | bool with_irqfd) | |
ade80dc8 | 738 | { |
d2a0ccc6 | 739 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
a3fc66d9 PB |
740 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
741 | VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev); | |
742 | VirtQueue *vq = virtio_get_queue(vdev, n); | |
ade80dc8 MT |
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 | 756 | if (!msix_enabled(&proxy->pci_dev) && vdc->guest_notifier_mask) { |
a3fc66d9 | 757 | vdc->guest_notifier_mask(vdev, n, !assign); |
62c96360 MT |
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); |
a3fc66d9 | 772 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
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 | |
87b3bd1c | 778 | nvqs = MIN(nvqs, VIRTIO_QUEUE_MAX); |
2d620f59 MT |
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 | ||
23fe2b3f | 802 | r = virtio_pci_set_guest_notifier(d, n, assign, with_irqfd); |
54dd9321 MT |
803 | if (r < 0) { |
804 | goto assign_error; | |
805 | } | |
806 | } | |
807 | ||
7d37d351 | 808 | /* Must set vector notifier after guest notifier has been assigned */ |
181103cd | 809 | if ((with_irqfd || k->guest_notifier_mask) && assign) { |
a38b2c49 MT |
810 | if (with_irqfd) { |
811 | proxy->vector_irqfd = | |
812 | g_malloc0(sizeof(*proxy->vector_irqfd) * | |
813 | msix_nr_vectors_allocated(&proxy->pci_dev)); | |
814 | r = kvm_virtio_pci_vector_use(proxy, nvqs); | |
815 | if (r < 0) { | |
816 | goto assign_error; | |
817 | } | |
774345f9 | 818 | } |
7d37d351 | 819 | r = msix_set_vector_notifiers(&proxy->pci_dev, |
a38b2c49 MT |
820 | virtio_pci_vector_unmask, |
821 | virtio_pci_vector_mask, | |
822 | virtio_pci_vector_poll); | |
7d37d351 | 823 | if (r < 0) { |
774345f9 | 824 | goto notifiers_error; |
7d37d351 JK |
825 | } |
826 | } | |
827 | ||
54dd9321 MT |
828 | return 0; |
829 | ||
774345f9 | 830 | notifiers_error: |
a38b2c49 MT |
831 | if (with_irqfd) { |
832 | assert(assign); | |
833 | kvm_virtio_pci_vector_release(proxy, nvqs); | |
834 | } | |
774345f9 | 835 | |
54dd9321 MT |
836 | assign_error: |
837 | /* We get here on assignment failure. Recover by undoing for VQs 0 .. n. */ | |
7d37d351 | 838 | assert(assign); |
54dd9321 | 839 | while (--n >= 0) { |
89d62be9 | 840 | virtio_pci_set_guest_notifier(d, n, !assign, with_irqfd); |
54dd9321 MT |
841 | } |
842 | return r; | |
843 | } | |
844 | ||
d2a0ccc6 | 845 | static int virtio_pci_set_host_notifier(DeviceState *d, int n, bool assign) |
ade80dc8 | 846 | { |
d2a0ccc6 | 847 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
25db9ebe SH |
848 | |
849 | /* Stop using ioeventfd for virtqueue kick if the device starts using host | |
850 | * notifiers. This makes it easy to avoid stepping on each others' toes. | |
851 | */ | |
852 | proxy->ioeventfd_disabled = assign; | |
ade80dc8 | 853 | if (assign) { |
25db9ebe SH |
854 | virtio_pci_stop_ioeventfd(proxy); |
855 | } | |
856 | /* We don't need to start here: it's not needed because backend | |
857 | * currently only stops on status change away from ok, | |
858 | * reset, vmstop and such. If we do add code to start here, | |
859 | * need to check vmstate, device state etc. */ | |
26b9b5fe | 860 | return virtio_pci_set_host_notifier_internal(proxy, n, assign, false); |
25db9ebe SH |
861 | } |
862 | ||
d2a0ccc6 | 863 | static void virtio_pci_vmstate_change(DeviceState *d, bool running) |
25db9ebe | 864 | { |
d2a0ccc6 | 865 | VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
a3fc66d9 | 866 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
25db9ebe SH |
867 | |
868 | if (running) { | |
68a27b20 MT |
869 | /* Old QEMU versions did not set bus master enable on status write. |
870 | * Detect DRIVER set and enable it. | |
871 | */ | |
872 | if ((proxy->flags & VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION) && | |
873 | (vdev->status & VIRTIO_CONFIG_S_DRIVER) && | |
45363e46 | 874 | !(proxy->pci_dev.config[PCI_COMMAND] & PCI_COMMAND_MASTER)) { |
68a27b20 MT |
875 | pci_default_write_config(&proxy->pci_dev, PCI_COMMAND, |
876 | proxy->pci_dev.config[PCI_COMMAND] | | |
877 | PCI_COMMAND_MASTER, 1); | |
89c473fd | 878 | } |
25db9ebe | 879 | virtio_pci_start_ioeventfd(proxy); |
ade80dc8 | 880 | } else { |
25db9ebe | 881 | virtio_pci_stop_ioeventfd(proxy); |
ade80dc8 | 882 | } |
ade80dc8 MT |
883 | } |
884 | ||
60653b28 | 885 | #ifdef CONFIG_VIRTFS |
fc079951 | 886 | static void virtio_9p_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) |
60653b28 | 887 | { |
234a336f FK |
888 | V9fsPCIState *dev = VIRTIO_9P_PCI(vpci_dev); |
889 | DeviceState *vdev = DEVICE(&dev->vdev); | |
60653b28 | 890 | |
234a336f | 891 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
fc079951 | 892 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
60653b28 PB |
893 | } |
894 | ||
234a336f FK |
895 | static Property virtio_9p_pci_properties[] = { |
896 | DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, | |
897 | VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), | |
60653b28 | 898 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2), |
60653b28 PB |
899 | DEFINE_PROP_END_OF_LIST(), |
900 | }; | |
901 | ||
234a336f | 902 | static void virtio_9p_pci_class_init(ObjectClass *klass, void *data) |
60653b28 PB |
903 | { |
904 | DeviceClass *dc = DEVICE_CLASS(klass); | |
234a336f FK |
905 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); |
906 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
60653b28 | 907 | |
fc079951 | 908 | k->realize = virtio_9p_pci_realize; |
234a336f FK |
909 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; |
910 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_9P; | |
911 | pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; | |
912 | pcidev_k->class_id = 0x2; | |
125ee0ed | 913 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
234a336f | 914 | dc->props = virtio_9p_pci_properties; |
60653b28 PB |
915 | } |
916 | ||
234a336f FK |
917 | static void virtio_9p_pci_instance_init(Object *obj) |
918 | { | |
919 | V9fsPCIState *dev = VIRTIO_9P_PCI(obj); | |
c8075caf GA |
920 | |
921 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
922 | TYPE_VIRTIO_9P); | |
234a336f FK |
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 | ||
e0d686bf JW |
938 | static int virtio_pci_query_nvectors(DeviceState *d) |
939 | { | |
940 | VirtIOPCIProxy *proxy = VIRTIO_PCI(d); | |
941 | ||
942 | return proxy->nvectors; | |
943 | } | |
944 | ||
dfb8e184 MT |
945 | static void virtio_pci_add_mem_cap(VirtIOPCIProxy *proxy, |
946 | struct virtio_pci_cap *cap) | |
947 | { | |
948 | PCIDevice *dev = &proxy->pci_dev; | |
949 | int offset; | |
950 | ||
dfb8e184 MT |
951 | offset = pci_add_capability(dev, PCI_CAP_ID_VNDR, 0, cap->cap_len); |
952 | assert(offset > 0); | |
953 | ||
954 | assert(cap->cap_len >= sizeof *cap); | |
955 | memcpy(dev->config + offset + PCI_CAP_FLAGS, &cap->cap_len, | |
956 | cap->cap_len - PCI_CAP_FLAGS); | |
957 | } | |
958 | ||
dfb8e184 MT |
959 | static uint64_t virtio_pci_common_read(void *opaque, hwaddr addr, |
960 | unsigned size) | |
961 | { | |
962 | VirtIOPCIProxy *proxy = opaque; | |
963 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); | |
964 | uint32_t val = 0; | |
965 | int i; | |
966 | ||
967 | switch (addr) { | |
968 | case VIRTIO_PCI_COMMON_DFSELECT: | |
969 | val = proxy->dfselect; | |
970 | break; | |
971 | case VIRTIO_PCI_COMMON_DF: | |
972 | if (proxy->dfselect <= 1) { | |
973 | val = vdev->host_features >> (32 * proxy->dfselect); | |
974 | } | |
975 | break; | |
976 | case VIRTIO_PCI_COMMON_GFSELECT: | |
977 | val = proxy->gfselect; | |
978 | break; | |
979 | case VIRTIO_PCI_COMMON_GF: | |
980 | if (proxy->gfselect <= ARRAY_SIZE(proxy->guest_features)) { | |
981 | val = proxy->guest_features[proxy->gfselect]; | |
982 | } | |
983 | break; | |
984 | case VIRTIO_PCI_COMMON_MSIX: | |
985 | val = vdev->config_vector; | |
986 | break; | |
987 | case VIRTIO_PCI_COMMON_NUMQ: | |
988 | for (i = 0; i < VIRTIO_QUEUE_MAX; ++i) { | |
989 | if (virtio_queue_get_num(vdev, i)) { | |
990 | val = i + 1; | |
991 | } | |
992 | } | |
993 | break; | |
994 | case VIRTIO_PCI_COMMON_STATUS: | |
995 | val = vdev->status; | |
996 | break; | |
997 | case VIRTIO_PCI_COMMON_CFGGENERATION: | |
b8f05908 | 998 | val = vdev->generation; |
dfb8e184 MT |
999 | break; |
1000 | case VIRTIO_PCI_COMMON_Q_SELECT: | |
1001 | val = vdev->queue_sel; | |
1002 | break; | |
1003 | case VIRTIO_PCI_COMMON_Q_SIZE: | |
1004 | val = virtio_queue_get_num(vdev, vdev->queue_sel); | |
1005 | break; | |
1006 | case VIRTIO_PCI_COMMON_Q_MSIX: | |
1007 | val = virtio_queue_vector(vdev, vdev->queue_sel); | |
1008 | break; | |
1009 | case VIRTIO_PCI_COMMON_Q_ENABLE: | |
1010 | val = proxy->vqs[vdev->queue_sel].enabled; | |
1011 | break; | |
1012 | case VIRTIO_PCI_COMMON_Q_NOFF: | |
1013 | /* Simply map queues in order */ | |
1014 | val = vdev->queue_sel; | |
1015 | break; | |
1016 | case VIRTIO_PCI_COMMON_Q_DESCLO: | |
1017 | val = proxy->vqs[vdev->queue_sel].desc[0]; | |
1018 | break; | |
1019 | case VIRTIO_PCI_COMMON_Q_DESCHI: | |
1020 | val = proxy->vqs[vdev->queue_sel].desc[1]; | |
1021 | break; | |
1022 | case VIRTIO_PCI_COMMON_Q_AVAILLO: | |
1023 | val = proxy->vqs[vdev->queue_sel].avail[0]; | |
1024 | break; | |
1025 | case VIRTIO_PCI_COMMON_Q_AVAILHI: | |
1026 | val = proxy->vqs[vdev->queue_sel].avail[1]; | |
1027 | break; | |
1028 | case VIRTIO_PCI_COMMON_Q_USEDLO: | |
1029 | val = proxy->vqs[vdev->queue_sel].used[0]; | |
1030 | break; | |
1031 | case VIRTIO_PCI_COMMON_Q_USEDHI: | |
1032 | val = proxy->vqs[vdev->queue_sel].used[1]; | |
1033 | break; | |
1034 | default: | |
1035 | val = 0; | |
1036 | } | |
1037 | ||
1038 | return val; | |
1039 | } | |
1040 | ||
1041 | static void virtio_pci_common_write(void *opaque, hwaddr addr, | |
1042 | uint64_t val, unsigned size) | |
1043 | { | |
1044 | VirtIOPCIProxy *proxy = opaque; | |
1045 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); | |
1046 | ||
1047 | switch (addr) { | |
1048 | case VIRTIO_PCI_COMMON_DFSELECT: | |
1049 | proxy->dfselect = val; | |
1050 | break; | |
1051 | case VIRTIO_PCI_COMMON_GFSELECT: | |
1052 | proxy->gfselect = val; | |
1053 | break; | |
1054 | case VIRTIO_PCI_COMMON_GF: | |
1055 | if (proxy->gfselect <= ARRAY_SIZE(proxy->guest_features)) { | |
1056 | proxy->guest_features[proxy->gfselect] = val; | |
1057 | virtio_set_features(vdev, | |
1058 | (((uint64_t)proxy->guest_features[1]) << 32) | | |
1059 | proxy->guest_features[0]); | |
1060 | } | |
1061 | break; | |
1062 | case VIRTIO_PCI_COMMON_MSIX: | |
1063 | msix_vector_unuse(&proxy->pci_dev, vdev->config_vector); | |
1064 | /* Make it possible for guest to discover an error took place. */ | |
1065 | if (msix_vector_use(&proxy->pci_dev, val) < 0) { | |
1066 | val = VIRTIO_NO_VECTOR; | |
1067 | } | |
1068 | vdev->config_vector = val; | |
1069 | break; | |
1070 | case VIRTIO_PCI_COMMON_STATUS: | |
1071 | if (!(val & VIRTIO_CONFIG_S_DRIVER_OK)) { | |
1072 | virtio_pci_stop_ioeventfd(proxy); | |
1073 | } | |
1074 | ||
1075 | virtio_set_status(vdev, val & 0xFF); | |
1076 | ||
1077 | if (val & VIRTIO_CONFIG_S_DRIVER_OK) { | |
1078 | virtio_pci_start_ioeventfd(proxy); | |
1079 | } | |
1080 | ||
1081 | if (vdev->status == 0) { | |
1082 | virtio_reset(vdev); | |
1083 | msix_unuse_all_vectors(&proxy->pci_dev); | |
1084 | } | |
1085 | ||
1086 | break; | |
1087 | case VIRTIO_PCI_COMMON_Q_SELECT: | |
1088 | if (val < VIRTIO_QUEUE_MAX) { | |
1089 | vdev->queue_sel = val; | |
1090 | } | |
1091 | break; | |
1092 | case VIRTIO_PCI_COMMON_Q_SIZE: | |
1093 | proxy->vqs[vdev->queue_sel].num = val; | |
1094 | break; | |
1095 | case VIRTIO_PCI_COMMON_Q_MSIX: | |
1096 | msix_vector_unuse(&proxy->pci_dev, | |
1097 | virtio_queue_vector(vdev, vdev->queue_sel)); | |
1098 | /* Make it possible for guest to discover an error took place. */ | |
1099 | if (msix_vector_use(&proxy->pci_dev, val) < 0) { | |
1100 | val = VIRTIO_NO_VECTOR; | |
1101 | } | |
1102 | virtio_queue_set_vector(vdev, vdev->queue_sel, val); | |
1103 | break; | |
1104 | case VIRTIO_PCI_COMMON_Q_ENABLE: | |
1105 | /* TODO: need a way to put num back on reset. */ | |
1106 | virtio_queue_set_num(vdev, vdev->queue_sel, | |
1107 | proxy->vqs[vdev->queue_sel].num); | |
1108 | virtio_queue_set_rings(vdev, vdev->queue_sel, | |
1109 | ((uint64_t)proxy->vqs[vdev->queue_sel].desc[1]) << 32 | | |
1110 | proxy->vqs[vdev->queue_sel].desc[0], | |
1111 | ((uint64_t)proxy->vqs[vdev->queue_sel].avail[1]) << 32 | | |
1112 | proxy->vqs[vdev->queue_sel].avail[0], | |
1113 | ((uint64_t)proxy->vqs[vdev->queue_sel].used[1]) << 32 | | |
1114 | proxy->vqs[vdev->queue_sel].used[0]); | |
1115 | break; | |
1116 | case VIRTIO_PCI_COMMON_Q_DESCLO: | |
1117 | proxy->vqs[vdev->queue_sel].desc[0] = val; | |
1118 | break; | |
1119 | case VIRTIO_PCI_COMMON_Q_DESCHI: | |
1120 | proxy->vqs[vdev->queue_sel].desc[1] = val; | |
1121 | break; | |
1122 | case VIRTIO_PCI_COMMON_Q_AVAILLO: | |
1123 | proxy->vqs[vdev->queue_sel].avail[0] = val; | |
1124 | break; | |
1125 | case VIRTIO_PCI_COMMON_Q_AVAILHI: | |
1126 | proxy->vqs[vdev->queue_sel].avail[1] = val; | |
1127 | break; | |
1128 | case VIRTIO_PCI_COMMON_Q_USEDLO: | |
1129 | proxy->vqs[vdev->queue_sel].used[0] = val; | |
1130 | break; | |
1131 | case VIRTIO_PCI_COMMON_Q_USEDHI: | |
1132 | proxy->vqs[vdev->queue_sel].used[1] = val; | |
1133 | break; | |
1134 | default: | |
1135 | break; | |
1136 | } | |
1137 | } | |
1138 | ||
1139 | ||
1140 | static uint64_t virtio_pci_notify_read(void *opaque, hwaddr addr, | |
1141 | unsigned size) | |
1142 | { | |
1143 | return 0; | |
1144 | } | |
1145 | ||
1146 | static void virtio_pci_notify_write(void *opaque, hwaddr addr, | |
1147 | uint64_t val, unsigned size) | |
1148 | { | |
1149 | VirtIODevice *vdev = opaque; | |
1150 | unsigned queue = addr / QEMU_VIRTIO_PCI_QUEUE_MEM_MULT; | |
1151 | ||
1152 | if (queue < VIRTIO_QUEUE_MAX) { | |
1153 | virtio_queue_notify(vdev, queue); | |
1154 | } | |
1155 | } | |
1156 | ||
1157 | static uint64_t virtio_pci_isr_read(void *opaque, hwaddr addr, | |
1158 | unsigned size) | |
1159 | { | |
1160 | VirtIOPCIProxy *proxy = opaque; | |
1161 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); | |
1162 | uint64_t val = vdev->isr; | |
1163 | ||
1164 | vdev->isr = 0; | |
1165 | pci_irq_deassert(&proxy->pci_dev); | |
1166 | ||
1167 | return val; | |
1168 | } | |
1169 | ||
1170 | static void virtio_pci_isr_write(void *opaque, hwaddr addr, | |
1171 | uint64_t val, unsigned size) | |
1172 | { | |
1173 | } | |
1174 | ||
1175 | static uint64_t virtio_pci_device_read(void *opaque, hwaddr addr, | |
1176 | unsigned size) | |
1177 | { | |
1178 | VirtIODevice *vdev = opaque; | |
1179 | uint64_t val = 0; | |
1180 | ||
1181 | switch (size) { | |
1182 | case 1: | |
54c720d4 | 1183 | val = virtio_config_modern_readb(vdev, addr); |
dfb8e184 MT |
1184 | break; |
1185 | case 2: | |
54c720d4 | 1186 | val = virtio_config_modern_readw(vdev, addr); |
dfb8e184 MT |
1187 | break; |
1188 | case 4: | |
54c720d4 | 1189 | val = virtio_config_modern_readl(vdev, addr); |
dfb8e184 MT |
1190 | break; |
1191 | } | |
1192 | return val; | |
1193 | } | |
1194 | ||
1195 | static void virtio_pci_device_write(void *opaque, hwaddr addr, | |
1196 | uint64_t val, unsigned size) | |
1197 | { | |
1198 | VirtIODevice *vdev = opaque; | |
1199 | switch (size) { | |
1200 | case 1: | |
54c720d4 | 1201 | virtio_config_modern_writeb(vdev, addr, val); |
dfb8e184 MT |
1202 | break; |
1203 | case 2: | |
54c720d4 | 1204 | virtio_config_modern_writew(vdev, addr, val); |
dfb8e184 MT |
1205 | break; |
1206 | case 4: | |
54c720d4 | 1207 | virtio_config_modern_writel(vdev, addr, val); |
dfb8e184 MT |
1208 | break; |
1209 | } | |
1210 | } | |
1211 | ||
1141ce21 GH |
1212 | static void virtio_pci_modern_regions_init(VirtIOPCIProxy *proxy) |
1213 | { | |
1214 | static const MemoryRegionOps common_ops = { | |
1215 | .read = virtio_pci_common_read, | |
1216 | .write = virtio_pci_common_write, | |
1217 | .impl = { | |
1218 | .min_access_size = 1, | |
1219 | .max_access_size = 4, | |
1220 | }, | |
1221 | .endianness = DEVICE_LITTLE_ENDIAN, | |
1222 | }; | |
1223 | static const MemoryRegionOps isr_ops = { | |
1224 | .read = virtio_pci_isr_read, | |
1225 | .write = virtio_pci_isr_write, | |
1226 | .impl = { | |
1227 | .min_access_size = 1, | |
1228 | .max_access_size = 4, | |
1229 | }, | |
1230 | .endianness = DEVICE_LITTLE_ENDIAN, | |
1231 | }; | |
1232 | static const MemoryRegionOps device_ops = { | |
1233 | .read = virtio_pci_device_read, | |
1234 | .write = virtio_pci_device_write, | |
1235 | .impl = { | |
1236 | .min_access_size = 1, | |
1237 | .max_access_size = 4, | |
1238 | }, | |
1239 | .endianness = DEVICE_LITTLE_ENDIAN, | |
1240 | }; | |
1241 | static const MemoryRegionOps notify_ops = { | |
1242 | .read = virtio_pci_notify_read, | |
1243 | .write = virtio_pci_notify_write, | |
1244 | .impl = { | |
1245 | .min_access_size = 1, | |
1246 | .max_access_size = 4, | |
1247 | }, | |
1248 | .endianness = DEVICE_LITTLE_ENDIAN, | |
1249 | }; | |
1250 | ||
1251 | memory_region_init_io(&proxy->common.mr, OBJECT(proxy), | |
1252 | &common_ops, | |
1253 | proxy, | |
b6ce27a5 GH |
1254 | "virtio-pci-common", |
1255 | proxy->common.size); | |
a3cc2e81 | 1256 | |
1141ce21 GH |
1257 | memory_region_init_io(&proxy->isr.mr, OBJECT(proxy), |
1258 | &isr_ops, | |
1259 | proxy, | |
b6ce27a5 GH |
1260 | "virtio-pci-isr", |
1261 | proxy->isr.size); | |
a3cc2e81 | 1262 | |
1141ce21 GH |
1263 | memory_region_init_io(&proxy->device.mr, OBJECT(proxy), |
1264 | &device_ops, | |
1265 | virtio_bus_get_device(&proxy->bus), | |
b6ce27a5 GH |
1266 | "virtio-pci-device", |
1267 | proxy->device.size); | |
a3cc2e81 | 1268 | |
1141ce21 GH |
1269 | memory_region_init_io(&proxy->notify.mr, OBJECT(proxy), |
1270 | ¬ify_ops, | |
1271 | virtio_bus_get_device(&proxy->bus), | |
1272 | "virtio-pci-notify", | |
b6ce27a5 | 1273 | proxy->notify.size); |
a3cc2e81 GH |
1274 | } |
1275 | ||
1276 | static void virtio_pci_modern_region_map(VirtIOPCIProxy *proxy, | |
54790d71 GH |
1277 | VirtIOPCIRegion *region, |
1278 | struct virtio_pci_cap *cap) | |
a3cc2e81 GH |
1279 | { |
1280 | memory_region_add_subregion(&proxy->modern_bar, | |
1281 | region->offset, | |
1282 | ®ion->mr); | |
54790d71 | 1283 | |
fc004905 | 1284 | cap->cfg_type = region->type; |
b6ce27a5 | 1285 | cap->bar = proxy->modern_mem_bar; |
54790d71 | 1286 | cap->offset = cpu_to_le32(region->offset); |
b6ce27a5 | 1287 | cap->length = cpu_to_le32(region->size); |
54790d71 | 1288 | virtio_pci_add_mem_cap(proxy, cap); |
1141ce21 | 1289 | } |
dfb8e184 | 1290 | |
085bccb7 | 1291 | /* This is called by virtio-bus just after the device is plugged. */ |
e8398045 | 1292 | static void virtio_pci_device_plugged(DeviceState *d, Error **errp) |
085bccb7 FK |
1293 | { |
1294 | VirtIOPCIProxy *proxy = VIRTIO_PCI(d); | |
1295 | VirtioBusState *bus = &proxy->bus; | |
e266d421 GH |
1296 | bool legacy = !(proxy->flags & VIRTIO_PCI_FLAG_DISABLE_LEGACY); |
1297 | bool modern = !(proxy->flags & VIRTIO_PCI_FLAG_DISABLE_MODERN); | |
085bccb7 FK |
1298 | uint8_t *config; |
1299 | uint32_t size; | |
6b8f1020 | 1300 | VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); |
085bccb7 | 1301 | |
085bccb7 FK |
1302 | config = proxy->pci_dev.config; |
1303 | if (proxy->class_code) { | |
1304 | pci_config_set_class(config, proxy->class_code); | |
1305 | } | |
e266d421 GH |
1306 | |
1307 | if (legacy) { | |
1308 | /* legacy and transitional */ | |
1309 | pci_set_word(config + PCI_SUBSYSTEM_VENDOR_ID, | |
1310 | pci_get_word(config + PCI_VENDOR_ID)); | |
1311 | pci_set_word(config + PCI_SUBSYSTEM_ID, virtio_bus_get_vdev_id(bus)); | |
1312 | } else { | |
1313 | /* pure virtio-1.0 */ | |
1314 | pci_set_word(config + PCI_VENDOR_ID, | |
1315 | PCI_VENDOR_ID_REDHAT_QUMRANET); | |
1316 | pci_set_word(config + PCI_DEVICE_ID, | |
1317 | 0x1040 + virtio_bus_get_vdev_id(bus)); | |
1318 | pci_config_set_revision(config, 1); | |
1319 | } | |
085bccb7 FK |
1320 | config[PCI_INTERRUPT_PIN] = 1; |
1321 | ||
dfb8e184 | 1322 | |
e266d421 | 1323 | if (modern) { |
cc52ea90 GH |
1324 | struct virtio_pci_cap cap = { |
1325 | .cap_len = sizeof cap, | |
dfb8e184 MT |
1326 | }; |
1327 | struct virtio_pci_notify_cap notify = { | |
dfb8e184 | 1328 | .cap.cap_len = sizeof notify, |
dfb8e184 MT |
1329 | .notify_off_multiplier = |
1330 | cpu_to_le32(QEMU_VIRTIO_PCI_QUEUE_MEM_MULT), | |
1331 | }; | |
1332 | ||
dfb8e184 | 1333 | /* TODO: add io access for speed */ |
dfb8e184 MT |
1334 | |
1335 | virtio_add_feature(&vdev->host_features, VIRTIO_F_VERSION_1); | |
1141ce21 | 1336 | virtio_pci_modern_regions_init(proxy); |
cc52ea90 GH |
1337 | virtio_pci_modern_region_map(proxy, &proxy->common, &cap); |
1338 | virtio_pci_modern_region_map(proxy, &proxy->isr, &cap); | |
1339 | virtio_pci_modern_region_map(proxy, &proxy->device, &cap); | |
54790d71 | 1340 | virtio_pci_modern_region_map(proxy, &proxy->notify, ¬ify.cap); |
b6ce27a5 | 1341 | pci_register_bar(&proxy->pci_dev, proxy->modern_mem_bar, |
4e93a68e GH |
1342 | PCI_BASE_ADDRESS_SPACE_MEMORY | |
1343 | PCI_BASE_ADDRESS_MEM_PREFETCH | | |
1344 | PCI_BASE_ADDRESS_MEM_TYPE_64, | |
dfb8e184 MT |
1345 | &proxy->modern_bar); |
1346 | } | |
1347 | ||
085bccb7 | 1348 | if (proxy->nvectors && |
b6ce27a5 GH |
1349 | msix_init_exclusive_bar(&proxy->pci_dev, proxy->nvectors, |
1350 | proxy->msix_bar)) { | |
c7ff5482 FZ |
1351 | error_report("unable to init msix vectors to %" PRIu32, |
1352 | proxy->nvectors); | |
085bccb7 FK |
1353 | proxy->nvectors = 0; |
1354 | } | |
1355 | ||
1356 | proxy->pci_dev.config_write = virtio_write_config; | |
1357 | ||
e266d421 GH |
1358 | if (legacy) { |
1359 | size = VIRTIO_PCI_REGION_SIZE(&proxy->pci_dev) | |
1360 | + virtio_bus_get_vdev_config_len(bus); | |
1361 | if (size & (size - 1)) { | |
1362 | size = 1 << qemu_fls(size); | |
1363 | } | |
085bccb7 | 1364 | |
e266d421 GH |
1365 | memory_region_init_io(&proxy->bar, OBJECT(proxy), |
1366 | &virtio_pci_config_ops, | |
1367 | proxy, "virtio-pci", size); | |
dfb8e184 | 1368 | |
b6ce27a5 | 1369 | pci_register_bar(&proxy->pci_dev, proxy->legacy_io_bar, |
23c5e397 | 1370 | PCI_BASE_ADDRESS_SPACE_IO, &proxy->bar); |
e266d421 | 1371 | } |
085bccb7 FK |
1372 | |
1373 | if (!kvm_has_many_ioeventfds()) { | |
1374 | proxy->flags &= ~VIRTIO_PCI_FLAG_USE_IOEVENTFD; | |
1375 | } | |
1376 | ||
6b8f1020 | 1377 | virtio_add_feature(&vdev->host_features, VIRTIO_F_BAD_FEATURE); |
085bccb7 FK |
1378 | } |
1379 | ||
06a13073 PB |
1380 | static void virtio_pci_device_unplugged(DeviceState *d) |
1381 | { | |
06a13073 PB |
1382 | VirtIOPCIProxy *proxy = VIRTIO_PCI(d); |
1383 | ||
1384 | virtio_pci_stop_ioeventfd(proxy); | |
06a13073 PB |
1385 | } |
1386 | ||
fc079951 | 1387 | static void virtio_pci_realize(PCIDevice *pci_dev, Error **errp) |
085bccb7 | 1388 | { |
b6ce27a5 | 1389 | VirtIOPCIProxy *proxy = VIRTIO_PCI(pci_dev); |
085bccb7 | 1390 | VirtioPCIClass *k = VIRTIO_PCI_GET_CLASS(pci_dev); |
fc079951 | 1391 | |
b6ce27a5 GH |
1392 | /* |
1393 | * virtio pci bar layout used by default. | |
1394 | * subclasses can re-arrange things if needed. | |
1395 | * | |
1396 | * region 0 -- virtio legacy io bar | |
1397 | * region 1 -- msi-x bar | |
1398 | * region 4+5 -- virtio modern memory (64bit) bar | |
1399 | * | |
1400 | */ | |
1401 | proxy->legacy_io_bar = 0; | |
1402 | proxy->msix_bar = 1; | |
1403 | proxy->modern_mem_bar = 4; | |
1404 | ||
1405 | proxy->common.offset = 0x0; | |
1406 | proxy->common.size = 0x1000; | |
1407 | proxy->common.type = VIRTIO_PCI_CAP_COMMON_CFG; | |
1408 | ||
1409 | proxy->isr.offset = 0x1000; | |
1410 | proxy->isr.size = 0x1000; | |
1411 | proxy->isr.type = VIRTIO_PCI_CAP_ISR_CFG; | |
1412 | ||
1413 | proxy->device.offset = 0x2000; | |
1414 | proxy->device.size = 0x1000; | |
1415 | proxy->device.type = VIRTIO_PCI_CAP_DEVICE_CFG; | |
1416 | ||
1417 | proxy->notify.offset = 0x3000; | |
1418 | proxy->notify.size = | |
1419 | QEMU_VIRTIO_PCI_QUEUE_MEM_MULT * VIRTIO_QUEUE_MAX; | |
1420 | proxy->notify.type = VIRTIO_PCI_CAP_NOTIFY_CFG; | |
1421 | ||
1422 | /* subclasses can enforce modern, so do this unconditionally */ | |
1423 | memory_region_init(&proxy->modern_bar, OBJECT(proxy), "virtio-pci", | |
1424 | 2 * QEMU_VIRTIO_PCI_QUEUE_MEM_MULT * | |
1425 | VIRTIO_QUEUE_MAX); | |
1426 | ||
1427 | virtio_pci_bus_new(&proxy->bus, sizeof(proxy->bus), proxy); | |
fc079951 | 1428 | if (k->realize) { |
b6ce27a5 | 1429 | k->realize(proxy, errp); |
085bccb7 | 1430 | } |
085bccb7 FK |
1431 | } |
1432 | ||
1433 | static void virtio_pci_exit(PCIDevice *pci_dev) | |
1434 | { | |
8b81bb3b | 1435 | msix_uninit_exclusive_bar(pci_dev); |
085bccb7 FK |
1436 | } |
1437 | ||
59ccd20a | 1438 | static void virtio_pci_reset(DeviceState *qdev) |
085bccb7 FK |
1439 | { |
1440 | VirtIOPCIProxy *proxy = VIRTIO_PCI(qdev); | |
1441 | VirtioBusState *bus = VIRTIO_BUS(&proxy->bus); | |
1442 | virtio_pci_stop_ioeventfd(proxy); | |
1443 | virtio_bus_reset(bus); | |
1444 | msix_unuse_all_vectors(&proxy->pci_dev); | |
085bccb7 FK |
1445 | } |
1446 | ||
85d1277e | 1447 | static Property virtio_pci_properties[] = { |
68a27b20 MT |
1448 | DEFINE_PROP_BIT("virtio-pci-bus-master-bug-migration", VirtIOPCIProxy, flags, |
1449 | VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION_BIT, false), | |
e266d421 GH |
1450 | DEFINE_PROP_BIT("disable-legacy", VirtIOPCIProxy, flags, |
1451 | VIRTIO_PCI_FLAG_DISABLE_LEGACY_BIT, false), | |
1452 | DEFINE_PROP_BIT("disable-modern", VirtIOPCIProxy, flags, | |
1453 | VIRTIO_PCI_FLAG_DISABLE_MODERN_BIT, true), | |
85d1277e ML |
1454 | DEFINE_PROP_END_OF_LIST(), |
1455 | }; | |
1456 | ||
085bccb7 FK |
1457 | static void virtio_pci_class_init(ObjectClass *klass, void *data) |
1458 | { | |
1459 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1460 | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); | |
1461 | ||
85d1277e | 1462 | dc->props = virtio_pci_properties; |
fc079951 | 1463 | k->realize = virtio_pci_realize; |
085bccb7 FK |
1464 | k->exit = virtio_pci_exit; |
1465 | k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
1466 | k->revision = VIRTIO_PCI_ABI_VERSION; | |
1467 | k->class_id = PCI_CLASS_OTHERS; | |
59ccd20a | 1468 | dc->reset = virtio_pci_reset; |
085bccb7 FK |
1469 | } |
1470 | ||
1471 | static const TypeInfo virtio_pci_info = { | |
1472 | .name = TYPE_VIRTIO_PCI, | |
1473 | .parent = TYPE_PCI_DEVICE, | |
1474 | .instance_size = sizeof(VirtIOPCIProxy), | |
1475 | .class_init = virtio_pci_class_init, | |
1476 | .class_size = sizeof(VirtioPCIClass), | |
1477 | .abstract = true, | |
1478 | }; | |
1479 | ||
653ced07 FK |
1480 | /* virtio-blk-pci */ |
1481 | ||
1482 | static Property virtio_blk_pci_properties[] = { | |
c7bcc85d | 1483 | DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0), |
653ced07 FK |
1484 | DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, |
1485 | VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), | |
1486 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2), | |
653ced07 FK |
1487 | DEFINE_PROP_END_OF_LIST(), |
1488 | }; | |
1489 | ||
fc079951 | 1490 | static void virtio_blk_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) |
653ced07 FK |
1491 | { |
1492 | VirtIOBlkPCI *dev = VIRTIO_BLK_PCI(vpci_dev); | |
1493 | DeviceState *vdev = DEVICE(&dev->vdev); | |
fc079951 | 1494 | |
653ced07 | 1495 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
fc079951 | 1496 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
653ced07 FK |
1497 | } |
1498 | ||
1499 | static void virtio_blk_pci_class_init(ObjectClass *klass, void *data) | |
1500 | { | |
1501 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1502 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
1503 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
1504 | ||
125ee0ed | 1505 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
653ced07 | 1506 | dc->props = virtio_blk_pci_properties; |
fc079951 | 1507 | k->realize = virtio_blk_pci_realize; |
653ced07 FK |
1508 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; |
1509 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_BLOCK; | |
1510 | pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; | |
1511 | pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI; | |
1512 | } | |
1513 | ||
1514 | static void virtio_blk_pci_instance_init(Object *obj) | |
1515 | { | |
1516 | VirtIOBlkPCI *dev = VIRTIO_BLK_PCI(obj); | |
c8075caf GA |
1517 | |
1518 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
1519 | TYPE_VIRTIO_BLK); | |
467b3f33 SH |
1520 | object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev),"iothread", |
1521 | &error_abort); | |
aeb98ddc GA |
1522 | object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), |
1523 | "bootindex", &error_abort); | |
653ced07 FK |
1524 | } |
1525 | ||
1526 | static const TypeInfo virtio_blk_pci_info = { | |
1527 | .name = TYPE_VIRTIO_BLK_PCI, | |
1528 | .parent = TYPE_VIRTIO_PCI, | |
1529 | .instance_size = sizeof(VirtIOBlkPCI), | |
1530 | .instance_init = virtio_blk_pci_instance_init, | |
1531 | .class_init = virtio_blk_pci_class_init, | |
1532 | }; | |
1533 | ||
bc7b90a0 FK |
1534 | /* virtio-scsi-pci */ |
1535 | ||
1536 | static Property virtio_scsi_pci_properties[] = { | |
1537 | DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, | |
1538 | VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), | |
1539 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, | |
1540 | DEV_NVECTORS_UNSPECIFIED), | |
bc7b90a0 FK |
1541 | DEFINE_PROP_END_OF_LIST(), |
1542 | }; | |
1543 | ||
fc079951 | 1544 | static void virtio_scsi_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) |
bc7b90a0 FK |
1545 | { |
1546 | VirtIOSCSIPCI *dev = VIRTIO_SCSI_PCI(vpci_dev); | |
1547 | DeviceState *vdev = DEVICE(&dev->vdev); | |
292c8e50 | 1548 | VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(vdev); |
6f32a6b4 FK |
1549 | DeviceState *proxy = DEVICE(vpci_dev); |
1550 | char *bus_name; | |
bc7b90a0 FK |
1551 | |
1552 | if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) { | |
292c8e50 | 1553 | vpci_dev->nvectors = vs->conf.num_queues + 3; |
bc7b90a0 FK |
1554 | } |
1555 | ||
6f32a6b4 FK |
1556 | /* |
1557 | * For command line compatibility, this sets the virtio-scsi-device bus | |
1558 | * name as before. | |
1559 | */ | |
1560 | if (proxy->id) { | |
1561 | bus_name = g_strdup_printf("%s.0", proxy->id); | |
1562 | virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); | |
1563 | g_free(bus_name); | |
1564 | } | |
1565 | ||
bc7b90a0 | 1566 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
fc079951 | 1567 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
bc7b90a0 FK |
1568 | } |
1569 | ||
1570 | static void virtio_scsi_pci_class_init(ObjectClass *klass, void *data) | |
1571 | { | |
1572 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1573 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
1574 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
fc079951 MA |
1575 | |
1576 | k->realize = virtio_scsi_pci_realize; | |
125ee0ed | 1577 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
bc7b90a0 FK |
1578 | dc->props = virtio_scsi_pci_properties; |
1579 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
1580 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_SCSI; | |
1581 | pcidev_k->revision = 0x00; | |
1582 | pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI; | |
1583 | } | |
1584 | ||
1585 | static void virtio_scsi_pci_instance_init(Object *obj) | |
1586 | { | |
1587 | VirtIOSCSIPCI *dev = VIRTIO_SCSI_PCI(obj); | |
c8075caf GA |
1588 | |
1589 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
1590 | TYPE_VIRTIO_SCSI); | |
19d339f1 FZ |
1591 | object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev), "iothread", |
1592 | &error_abort); | |
bc7b90a0 FK |
1593 | } |
1594 | ||
1595 | static const TypeInfo virtio_scsi_pci_info = { | |
1596 | .name = TYPE_VIRTIO_SCSI_PCI, | |
1597 | .parent = TYPE_VIRTIO_PCI, | |
1598 | .instance_size = sizeof(VirtIOSCSIPCI), | |
1599 | .instance_init = virtio_scsi_pci_instance_init, | |
1600 | .class_init = virtio_scsi_pci_class_init, | |
1601 | }; | |
1602 | ||
50787628 NB |
1603 | /* vhost-scsi-pci */ |
1604 | ||
1605 | #ifdef CONFIG_VHOST_SCSI | |
1606 | static Property vhost_scsi_pci_properties[] = { | |
1607 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, | |
1608 | DEV_NVECTORS_UNSPECIFIED), | |
50787628 NB |
1609 | DEFINE_PROP_END_OF_LIST(), |
1610 | }; | |
1611 | ||
fc079951 | 1612 | static void vhost_scsi_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) |
50787628 NB |
1613 | { |
1614 | VHostSCSIPCI *dev = VHOST_SCSI_PCI(vpci_dev); | |
1615 | DeviceState *vdev = DEVICE(&dev->vdev); | |
1616 | VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(vdev); | |
1617 | ||
1618 | if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) { | |
1619 | vpci_dev->nvectors = vs->conf.num_queues + 3; | |
1620 | } | |
1621 | ||
1622 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); | |
fc079951 | 1623 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
50787628 NB |
1624 | } |
1625 | ||
1626 | static void vhost_scsi_pci_class_init(ObjectClass *klass, void *data) | |
1627 | { | |
1628 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1629 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
1630 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
fc079951 | 1631 | k->realize = vhost_scsi_pci_realize; |
125ee0ed | 1632 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
50787628 NB |
1633 | dc->props = vhost_scsi_pci_properties; |
1634 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
1635 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_SCSI; | |
1636 | pcidev_k->revision = 0x00; | |
1637 | pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI; | |
1638 | } | |
1639 | ||
1640 | static void vhost_scsi_pci_instance_init(Object *obj) | |
1641 | { | |
1642 | VHostSCSIPCI *dev = VHOST_SCSI_PCI(obj); | |
c8075caf GA |
1643 | |
1644 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
1645 | TYPE_VHOST_SCSI); | |
d4433f32 GA |
1646 | object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), |
1647 | "bootindex", &error_abort); | |
50787628 NB |
1648 | } |
1649 | ||
1650 | static const TypeInfo vhost_scsi_pci_info = { | |
1651 | .name = TYPE_VHOST_SCSI_PCI, | |
1652 | .parent = TYPE_VIRTIO_PCI, | |
1653 | .instance_size = sizeof(VHostSCSIPCI), | |
1654 | .instance_init = vhost_scsi_pci_instance_init, | |
1655 | .class_init = vhost_scsi_pci_class_init, | |
1656 | }; | |
1657 | #endif | |
1658 | ||
e378e88d FK |
1659 | /* virtio-balloon-pci */ |
1660 | ||
1661 | static Property virtio_balloon_pci_properties[] = { | |
c7bcc85d | 1662 | DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0), |
e378e88d FK |
1663 | DEFINE_PROP_END_OF_LIST(), |
1664 | }; | |
1665 | ||
fc079951 | 1666 | static void virtio_balloon_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) |
e378e88d FK |
1667 | { |
1668 | VirtIOBalloonPCI *dev = VIRTIO_BALLOON_PCI(vpci_dev); | |
1669 | DeviceState *vdev = DEVICE(&dev->vdev); | |
1670 | ||
1671 | if (vpci_dev->class_code != PCI_CLASS_OTHERS && | |
1672 | vpci_dev->class_code != PCI_CLASS_MEMORY_RAM) { /* qemu < 1.1 */ | |
1673 | vpci_dev->class_code = PCI_CLASS_OTHERS; | |
1674 | } | |
1675 | ||
1676 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); | |
fc079951 | 1677 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
e378e88d FK |
1678 | } |
1679 | ||
1680 | static void virtio_balloon_pci_class_init(ObjectClass *klass, void *data) | |
1681 | { | |
1682 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1683 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
1684 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
fc079951 | 1685 | k->realize = virtio_balloon_pci_realize; |
125ee0ed | 1686 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); |
e378e88d FK |
1687 | dc->props = virtio_balloon_pci_properties; |
1688 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
1689 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_BALLOON; | |
1690 | pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; | |
1691 | pcidev_k->class_id = PCI_CLASS_OTHERS; | |
1692 | } | |
1693 | ||
1694 | static void virtio_balloon_pci_instance_init(Object *obj) | |
1695 | { | |
1696 | VirtIOBalloonPCI *dev = VIRTIO_BALLOON_PCI(obj); | |
39b87c7b | 1697 | |
a6027b0f DL |
1698 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), |
1699 | TYPE_VIRTIO_BALLOON); | |
39b87c7b SZ |
1700 | object_property_add_alias(obj, "guest-stats", OBJECT(&dev->vdev), |
1701 | "guest-stats", &error_abort); | |
1702 | object_property_add_alias(obj, "guest-stats-polling-interval", | |
1703 | OBJECT(&dev->vdev), | |
1704 | "guest-stats-polling-interval", &error_abort); | |
e378e88d FK |
1705 | } |
1706 | ||
1707 | static const TypeInfo virtio_balloon_pci_info = { | |
1708 | .name = TYPE_VIRTIO_BALLOON_PCI, | |
1709 | .parent = TYPE_VIRTIO_PCI, | |
1710 | .instance_size = sizeof(VirtIOBalloonPCI), | |
1711 | .instance_init = virtio_balloon_pci_instance_init, | |
1712 | .class_init = virtio_balloon_pci_class_init, | |
1713 | }; | |
1714 | ||
f7f7464a FK |
1715 | /* virtio-serial-pci */ |
1716 | ||
fc079951 | 1717 | static void virtio_serial_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) |
f7f7464a FK |
1718 | { |
1719 | VirtIOSerialPCI *dev = VIRTIO_SERIAL_PCI(vpci_dev); | |
1720 | DeviceState *vdev = DEVICE(&dev->vdev); | |
80270a19 FK |
1721 | DeviceState *proxy = DEVICE(vpci_dev); |
1722 | char *bus_name; | |
f7f7464a FK |
1723 | |
1724 | if (vpci_dev->class_code != PCI_CLASS_COMMUNICATION_OTHER && | |
1725 | vpci_dev->class_code != PCI_CLASS_DISPLAY_OTHER && /* qemu 0.10 */ | |
1726 | vpci_dev->class_code != PCI_CLASS_OTHERS) { /* qemu-kvm */ | |
1727 | vpci_dev->class_code = PCI_CLASS_COMMUNICATION_OTHER; | |
1728 | } | |
1729 | ||
1730 | /* backwards-compatibility with machines that were created with | |
1731 | DEV_NVECTORS_UNSPECIFIED */ | |
1732 | if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) { | |
1733 | vpci_dev->nvectors = dev->vdev.serial.max_virtserial_ports + 1; | |
1734 | } | |
1735 | ||
80270a19 FK |
1736 | /* |
1737 | * For command line compatibility, this sets the virtio-serial-device bus | |
1738 | * name as before. | |
1739 | */ | |
1740 | if (proxy->id) { | |
1741 | bus_name = g_strdup_printf("%s.0", proxy->id); | |
1742 | virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); | |
1743 | g_free(bus_name); | |
1744 | } | |
1745 | ||
f7f7464a | 1746 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
fc079951 | 1747 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
f7f7464a FK |
1748 | } |
1749 | ||
1750 | static Property virtio_serial_pci_properties[] = { | |
1751 | DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, | |
1752 | VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), | |
1753 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2), | |
c7bcc85d | 1754 | DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0), |
f7f7464a FK |
1755 | DEFINE_PROP_END_OF_LIST(), |
1756 | }; | |
1757 | ||
1758 | static void virtio_serial_pci_class_init(ObjectClass *klass, void *data) | |
1759 | { | |
1760 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1761 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
1762 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
fc079951 | 1763 | k->realize = virtio_serial_pci_realize; |
125ee0ed | 1764 | set_bit(DEVICE_CATEGORY_INPUT, dc->categories); |
f7f7464a FK |
1765 | dc->props = virtio_serial_pci_properties; |
1766 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
1767 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_CONSOLE; | |
1768 | pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; | |
1769 | pcidev_k->class_id = PCI_CLASS_COMMUNICATION_OTHER; | |
1770 | } | |
1771 | ||
1772 | static void virtio_serial_pci_instance_init(Object *obj) | |
1773 | { | |
1774 | VirtIOSerialPCI *dev = VIRTIO_SERIAL_PCI(obj); | |
c8075caf GA |
1775 | |
1776 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
1777 | TYPE_VIRTIO_SERIAL); | |
f7f7464a FK |
1778 | } |
1779 | ||
1780 | static const TypeInfo virtio_serial_pci_info = { | |
1781 | .name = TYPE_VIRTIO_SERIAL_PCI, | |
1782 | .parent = TYPE_VIRTIO_PCI, | |
1783 | .instance_size = sizeof(VirtIOSerialPCI), | |
1784 | .instance_init = virtio_serial_pci_instance_init, | |
1785 | .class_init = virtio_serial_pci_class_init, | |
1786 | }; | |
1787 | ||
e37da394 FK |
1788 | /* virtio-net-pci */ |
1789 | ||
1790 | static Property virtio_net_properties[] = { | |
1791 | DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, | |
1792 | VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, false), | |
1793 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 3), | |
e37da394 FK |
1794 | DEFINE_PROP_END_OF_LIST(), |
1795 | }; | |
1796 | ||
fc079951 | 1797 | static void virtio_net_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) |
e37da394 | 1798 | { |
800ced8c | 1799 | DeviceState *qdev = DEVICE(vpci_dev); |
e37da394 FK |
1800 | VirtIONetPCI *dev = VIRTIO_NET_PCI(vpci_dev); |
1801 | DeviceState *vdev = DEVICE(&dev->vdev); | |
1802 | ||
800ced8c FK |
1803 | virtio_net_set_netclient_name(&dev->vdev, qdev->id, |
1804 | object_get_typename(OBJECT(qdev))); | |
e37da394 | 1805 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
fc079951 | 1806 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); |
e37da394 FK |
1807 | } |
1808 | ||
1809 | static void virtio_net_pci_class_init(ObjectClass *klass, void *data) | |
1810 | { | |
1811 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1812 | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); | |
1813 | VirtioPCIClass *vpciklass = VIRTIO_PCI_CLASS(klass); | |
1814 | ||
1815 | k->romfile = "efi-virtio.rom"; | |
1816 | k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
1817 | k->device_id = PCI_DEVICE_ID_VIRTIO_NET; | |
1818 | k->revision = VIRTIO_PCI_ABI_VERSION; | |
1819 | k->class_id = PCI_CLASS_NETWORK_ETHERNET; | |
125ee0ed | 1820 | set_bit(DEVICE_CATEGORY_NETWORK, dc->categories); |
e37da394 | 1821 | dc->props = virtio_net_properties; |
fc079951 | 1822 | vpciklass->realize = virtio_net_pci_realize; |
e37da394 FK |
1823 | } |
1824 | ||
1825 | static void virtio_net_pci_instance_init(Object *obj) | |
1826 | { | |
1827 | VirtIONetPCI *dev = VIRTIO_NET_PCI(obj); | |
c8075caf GA |
1828 | |
1829 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
1830 | TYPE_VIRTIO_NET); | |
0cf63c3e GA |
1831 | object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), |
1832 | "bootindex", &error_abort); | |
e37da394 FK |
1833 | } |
1834 | ||
1835 | static const TypeInfo virtio_net_pci_info = { | |
1836 | .name = TYPE_VIRTIO_NET_PCI, | |
1837 | .parent = TYPE_VIRTIO_PCI, | |
1838 | .instance_size = sizeof(VirtIONetPCI), | |
1839 | .instance_init = virtio_net_pci_instance_init, | |
1840 | .class_init = virtio_net_pci_class_init, | |
1841 | }; | |
1842 | ||
59ccd20a FK |
1843 | /* virtio-rng-pci */ |
1844 | ||
1845 | static Property virtio_rng_pci_properties[] = { | |
59ccd20a FK |
1846 | DEFINE_PROP_END_OF_LIST(), |
1847 | }; | |
1848 | ||
fc079951 | 1849 | static void virtio_rng_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) |
59ccd20a FK |
1850 | { |
1851 | VirtIORngPCI *vrng = VIRTIO_RNG_PCI(vpci_dev); | |
1852 | DeviceState *vdev = DEVICE(&vrng->vdev); | |
fc079951 | 1853 | Error *err = NULL; |
59ccd20a FK |
1854 | |
1855 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); | |
fc079951 MA |
1856 | object_property_set_bool(OBJECT(vdev), true, "realized", &err); |
1857 | if (err) { | |
1858 | error_propagate(errp, err); | |
1859 | return; | |
59ccd20a FK |
1860 | } |
1861 | ||
1862 | object_property_set_link(OBJECT(vrng), | |
5b456438 | 1863 | OBJECT(vrng->vdev.conf.rng), "rng", |
59ccd20a | 1864 | NULL); |
59ccd20a FK |
1865 | } |
1866 | ||
1867 | static void virtio_rng_pci_class_init(ObjectClass *klass, void *data) | |
1868 | { | |
1869 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1870 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
1871 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
1872 | ||
fc079951 | 1873 | k->realize = virtio_rng_pci_realize; |
125ee0ed | 1874 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); |
59ccd20a FK |
1875 | dc->props = virtio_rng_pci_properties; |
1876 | ||
1877 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
1878 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_RNG; | |
1879 | pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; | |
1880 | pcidev_k->class_id = PCI_CLASS_OTHERS; | |
1881 | } | |
1882 | ||
1883 | static void virtio_rng_initfn(Object *obj) | |
1884 | { | |
1885 | VirtIORngPCI *dev = VIRTIO_RNG_PCI(obj); | |
c8075caf GA |
1886 | |
1887 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
1888 | TYPE_VIRTIO_RNG); | |
cbd5ac69 PB |
1889 | object_property_add_alias(obj, "rng", OBJECT(&dev->vdev), "rng", |
1890 | &error_abort); | |
59ccd20a FK |
1891 | } |
1892 | ||
1893 | static const TypeInfo virtio_rng_pci_info = { | |
1894 | .name = TYPE_VIRTIO_RNG_PCI, | |
1895 | .parent = TYPE_VIRTIO_PCI, | |
1896 | .instance_size = sizeof(VirtIORngPCI), | |
1897 | .instance_init = virtio_rng_initfn, | |
1898 | .class_init = virtio_rng_pci_class_init, | |
1899 | }; | |
1900 | ||
f958c8aa GH |
1901 | /* virtio-input-pci */ |
1902 | ||
6f2b9a5b | 1903 | static Property virtio_input_pci_properties[] = { |
710e2d90 GH |
1904 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2), |
1905 | DEFINE_PROP_END_OF_LIST(), | |
1906 | }; | |
1907 | ||
f958c8aa GH |
1908 | static void virtio_input_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) |
1909 | { | |
1910 | VirtIOInputPCI *vinput = VIRTIO_INPUT_PCI(vpci_dev); | |
1911 | DeviceState *vdev = DEVICE(&vinput->vdev); | |
1912 | ||
1913 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); | |
1914 | /* force virtio-1.0 */ | |
1915 | vpci_dev->flags &= ~VIRTIO_PCI_FLAG_DISABLE_MODERN; | |
1916 | vpci_dev->flags |= VIRTIO_PCI_FLAG_DISABLE_LEGACY; | |
1917 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); | |
1918 | } | |
1919 | ||
1920 | static void virtio_input_pci_class_init(ObjectClass *klass, void *data) | |
1921 | { | |
1922 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1923 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
1924 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
1925 | ||
6f2b9a5b | 1926 | dc->props = virtio_input_pci_properties; |
f958c8aa GH |
1927 | k->realize = virtio_input_pci_realize; |
1928 | set_bit(DEVICE_CATEGORY_INPUT, dc->categories); | |
1929 | ||
1930 | pcidev_k->class_id = PCI_CLASS_INPUT_OTHER; | |
1931 | } | |
1932 | ||
710e2d90 GH |
1933 | static void virtio_input_hid_kbd_pci_class_init(ObjectClass *klass, void *data) |
1934 | { | |
1935 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
1936 | ||
1937 | pcidev_k->class_id = PCI_CLASS_INPUT_KEYBOARD; | |
1938 | } | |
1939 | ||
1940 | static void virtio_input_hid_mouse_pci_class_init(ObjectClass *klass, | |
1941 | void *data) | |
1942 | { | |
1943 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
1944 | ||
1945 | pcidev_k->class_id = PCI_CLASS_INPUT_MOUSE; | |
1946 | } | |
1947 | ||
1948 | static void virtio_keyboard_initfn(Object *obj) | |
1949 | { | |
1950 | VirtIOInputHIDPCI *dev = VIRTIO_INPUT_HID_PCI(obj); | |
6f2b9a5b GH |
1951 | |
1952 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
1953 | TYPE_VIRTIO_KEYBOARD); | |
710e2d90 GH |
1954 | } |
1955 | ||
1956 | static void virtio_mouse_initfn(Object *obj) | |
1957 | { | |
1958 | VirtIOInputHIDPCI *dev = VIRTIO_INPUT_HID_PCI(obj); | |
6f2b9a5b GH |
1959 | |
1960 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
1961 | TYPE_VIRTIO_MOUSE); | |
710e2d90 GH |
1962 | } |
1963 | ||
1964 | static void virtio_tablet_initfn(Object *obj) | |
1965 | { | |
1966 | VirtIOInputHIDPCI *dev = VIRTIO_INPUT_HID_PCI(obj); | |
6f2b9a5b GH |
1967 | |
1968 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
1969 | TYPE_VIRTIO_TABLET); | |
710e2d90 GH |
1970 | } |
1971 | ||
006a5ede GH |
1972 | static void virtio_host_initfn(Object *obj) |
1973 | { | |
1974 | VirtIOInputHostPCI *dev = VIRTIO_INPUT_HOST_PCI(obj); | |
1975 | ||
1976 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
1977 | TYPE_VIRTIO_INPUT_HOST); | |
1978 | } | |
1979 | ||
f958c8aa GH |
1980 | static const TypeInfo virtio_input_pci_info = { |
1981 | .name = TYPE_VIRTIO_INPUT_PCI, | |
1982 | .parent = TYPE_VIRTIO_PCI, | |
1983 | .instance_size = sizeof(VirtIOInputPCI), | |
1984 | .class_init = virtio_input_pci_class_init, | |
1985 | .abstract = true, | |
1986 | }; | |
1987 | ||
710e2d90 GH |
1988 | static const TypeInfo virtio_input_hid_pci_info = { |
1989 | .name = TYPE_VIRTIO_INPUT_HID_PCI, | |
1990 | .parent = TYPE_VIRTIO_INPUT_PCI, | |
1991 | .instance_size = sizeof(VirtIOInputHIDPCI), | |
710e2d90 GH |
1992 | .abstract = true, |
1993 | }; | |
1994 | ||
1995 | static const TypeInfo virtio_keyboard_pci_info = { | |
1996 | .name = TYPE_VIRTIO_KEYBOARD_PCI, | |
1997 | .parent = TYPE_VIRTIO_INPUT_HID_PCI, | |
1998 | .class_init = virtio_input_hid_kbd_pci_class_init, | |
1999 | .instance_size = sizeof(VirtIOInputHIDPCI), | |
2000 | .instance_init = virtio_keyboard_initfn, | |
2001 | }; | |
2002 | ||
2003 | static const TypeInfo virtio_mouse_pci_info = { | |
2004 | .name = TYPE_VIRTIO_MOUSE_PCI, | |
2005 | .parent = TYPE_VIRTIO_INPUT_HID_PCI, | |
2006 | .class_init = virtio_input_hid_mouse_pci_class_init, | |
2007 | .instance_size = sizeof(VirtIOInputHIDPCI), | |
2008 | .instance_init = virtio_mouse_initfn, | |
2009 | }; | |
2010 | ||
2011 | static const TypeInfo virtio_tablet_pci_info = { | |
2012 | .name = TYPE_VIRTIO_TABLET_PCI, | |
2013 | .parent = TYPE_VIRTIO_INPUT_HID_PCI, | |
2014 | .instance_size = sizeof(VirtIOInputHIDPCI), | |
2015 | .instance_init = virtio_tablet_initfn, | |
2016 | }; | |
2017 | ||
006a5ede GH |
2018 | static const TypeInfo virtio_host_pci_info = { |
2019 | .name = TYPE_VIRTIO_INPUT_HOST_PCI, | |
2020 | .parent = TYPE_VIRTIO_INPUT_PCI, | |
2021 | .instance_size = sizeof(VirtIOInputHostPCI), | |
2022 | .instance_init = virtio_host_initfn, | |
2023 | }; | |
2024 | ||
0a2acf5e FK |
2025 | /* virtio-pci-bus */ |
2026 | ||
ac7af112 AF |
2027 | static void virtio_pci_bus_new(VirtioBusState *bus, size_t bus_size, |
2028 | VirtIOPCIProxy *dev) | |
0a2acf5e FK |
2029 | { |
2030 | DeviceState *qdev = DEVICE(dev); | |
f4dd69aa FK |
2031 | char virtio_bus_name[] = "virtio-bus"; |
2032 | ||
fb17dfe0 | 2033 | qbus_create_inplace(bus, bus_size, TYPE_VIRTIO_PCI_BUS, qdev, |
f4dd69aa | 2034 | virtio_bus_name); |
0a2acf5e FK |
2035 | } |
2036 | ||
2037 | static void virtio_pci_bus_class_init(ObjectClass *klass, void *data) | |
2038 | { | |
2039 | BusClass *bus_class = BUS_CLASS(klass); | |
2040 | VirtioBusClass *k = VIRTIO_BUS_CLASS(klass); | |
2041 | bus_class->max_dev = 1; | |
2042 | k->notify = virtio_pci_notify; | |
2043 | k->save_config = virtio_pci_save_config; | |
2044 | k->load_config = virtio_pci_load_config; | |
2045 | k->save_queue = virtio_pci_save_queue; | |
2046 | k->load_queue = virtio_pci_load_queue; | |
0a2acf5e FK |
2047 | k->query_guest_notifiers = virtio_pci_query_guest_notifiers; |
2048 | k->set_host_notifier = virtio_pci_set_host_notifier; | |
2049 | k->set_guest_notifiers = virtio_pci_set_guest_notifiers; | |
2050 | k->vmstate_change = virtio_pci_vmstate_change; | |
085bccb7 | 2051 | k->device_plugged = virtio_pci_device_plugged; |
06a13073 | 2052 | k->device_unplugged = virtio_pci_device_unplugged; |
e0d686bf | 2053 | k->query_nvectors = virtio_pci_query_nvectors; |
0a2acf5e FK |
2054 | } |
2055 | ||
2056 | static const TypeInfo virtio_pci_bus_info = { | |
2057 | .name = TYPE_VIRTIO_PCI_BUS, | |
2058 | .parent = TYPE_VIRTIO_BUS, | |
2059 | .instance_size = sizeof(VirtioPCIBusState), | |
2060 | .class_init = virtio_pci_bus_class_init, | |
2061 | }; | |
2062 | ||
83f7d43a | 2063 | static void virtio_pci_register_types(void) |
53c25cea | 2064 | { |
59ccd20a | 2065 | type_register_static(&virtio_rng_pci_info); |
f958c8aa | 2066 | type_register_static(&virtio_input_pci_info); |
710e2d90 GH |
2067 | type_register_static(&virtio_input_hid_pci_info); |
2068 | type_register_static(&virtio_keyboard_pci_info); | |
2069 | type_register_static(&virtio_mouse_pci_info); | |
2070 | type_register_static(&virtio_tablet_pci_info); | |
006a5ede | 2071 | type_register_static(&virtio_host_pci_info); |
0a2acf5e | 2072 | type_register_static(&virtio_pci_bus_info); |
085bccb7 | 2073 | type_register_static(&virtio_pci_info); |
60653b28 | 2074 | #ifdef CONFIG_VIRTFS |
234a336f | 2075 | type_register_static(&virtio_9p_pci_info); |
60653b28 | 2076 | #endif |
653ced07 | 2077 | type_register_static(&virtio_blk_pci_info); |
bc7b90a0 | 2078 | type_register_static(&virtio_scsi_pci_info); |
e378e88d | 2079 | type_register_static(&virtio_balloon_pci_info); |
f7f7464a | 2080 | type_register_static(&virtio_serial_pci_info); |
e37da394 | 2081 | type_register_static(&virtio_net_pci_info); |
50787628 NB |
2082 | #ifdef CONFIG_VHOST_SCSI |
2083 | type_register_static(&vhost_scsi_pci_info); | |
2084 | #endif | |
53c25cea PB |
2085 | } |
2086 | ||
83f7d43a | 2087 | type_init(virtio_pci_register_types) |