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Commit | Line | Data |
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a5cf2bb4 CH |
1 | /* |
2 | * virtio ccw target implementation | |
3 | * | |
de6a9218 | 4 | * Copyright 2012,2015 IBM Corp. |
a5cf2bb4 | 5 | * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com> |
de6a9218 | 6 | * Pierre Morel <pmorel@linux.vnet.ibm.com> |
a5cf2bb4 CH |
7 | * |
8 | * This work is licensed under the terms of the GNU GPL, version 2 or (at | |
9 | * your option) any later version. See the COPYING file in the top-level | |
10 | * directory. | |
11 | */ | |
12 | ||
9615495a | 13 | #include "qemu/osdep.h" |
da34e65c | 14 | #include "qapi/error.h" |
a5cf2bb4 | 15 | #include "hw/hw.h" |
4be74634 | 16 | #include "sysemu/block-backend.h" |
a5cf2bb4 CH |
17 | #include "sysemu/blockdev.h" |
18 | #include "sysemu/sysemu.h" | |
bd3f16ac | 19 | #include "sysemu/kvm.h" |
a5cf2bb4 | 20 | #include "net/net.h" |
0d09e41a PB |
21 | #include "hw/virtio/virtio.h" |
22 | #include "hw/virtio/virtio-serial.h" | |
23 | #include "hw/virtio/virtio-net.h" | |
a5cf2bb4 CH |
24 | #include "hw/sysbus.h" |
25 | #include "qemu/bitops.h" | |
d49b6836 | 26 | #include "qemu/error-report.h" |
c42767f2 | 27 | #include "hw/virtio/virtio-access.h" |
0d09e41a | 28 | #include "hw/virtio/virtio-bus.h" |
d426d9fb CH |
29 | #include "hw/s390x/adapter.h" |
30 | #include "hw/s390x/s390_flic.h" | |
a5cf2bb4 | 31 | |
bd3f16ac PB |
32 | #include "hw/s390x/ioinst.h" |
33 | #include "hw/s390x/css.h" | |
a5cf2bb4 CH |
34 | #include "virtio-ccw.h" |
35 | #include "trace.h" | |
36 | ||
1bf4d7aa AF |
37 | static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size, |
38 | VirtioCcwDevice *dev); | |
d51fcfac | 39 | |
dcc20931 | 40 | static void virtual_css_bus_reset(BusState *qbus) |
a5cf2bb4 CH |
41 | { |
42 | /* This should actually be modelled via the generic css */ | |
43 | css_reset(); | |
a5cf2bb4 CH |
44 | } |
45 | ||
46 | ||
47 | static void virtual_css_bus_class_init(ObjectClass *klass, void *data) | |
48 | { | |
49 | BusClass *k = BUS_CLASS(klass); | |
50 | ||
51 | k->reset = virtual_css_bus_reset; | |
52 | } | |
53 | ||
54 | static const TypeInfo virtual_css_bus_info = { | |
55 | .name = TYPE_VIRTUAL_CSS_BUS, | |
56 | .parent = TYPE_BUS, | |
57 | .instance_size = sizeof(VirtualCssBus), | |
58 | .class_init = virtual_css_bus_class_init, | |
59 | }; | |
60 | ||
a5cf2bb4 CH |
61 | VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch) |
62 | { | |
63 | VirtIODevice *vdev = NULL; | |
f24a6840 | 64 | VirtioCcwDevice *dev = sch->driver_data; |
a5cf2bb4 | 65 | |
f24a6840 PB |
66 | if (dev) { |
67 | vdev = virtio_bus_get_device(&dev->bus); | |
a5cf2bb4 CH |
68 | } |
69 | return vdev; | |
70 | } | |
71 | ||
b4436a0b CH |
72 | static int virtio_ccw_set_guest2host_notifier(VirtioCcwDevice *dev, int n, |
73 | bool assign, bool set_handler) | |
74 | { | |
f24a6840 PB |
75 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); |
76 | VirtQueue *vq = virtio_get_queue(vdev, n); | |
b4436a0b CH |
77 | EventNotifier *notifier = virtio_queue_get_host_notifier(vq); |
78 | int r = 0; | |
79 | SubchDev *sch = dev->sch; | |
80 | uint32_t sch_id = (css_build_subchannel_id(sch) << 16) | sch->schid; | |
81 | ||
82 | if (assign) { | |
83 | r = event_notifier_init(notifier, 1); | |
84 | if (r < 0) { | |
85 | error_report("%s: unable to init event notifier: %d", __func__, r); | |
86 | return r; | |
87 | } | |
88 | virtio_queue_set_host_notifier_fd_handler(vq, true, set_handler); | |
cc3ac9c4 | 89 | r = s390_assign_subch_ioeventfd(notifier, sch_id, n, assign); |
b4436a0b CH |
90 | if (r < 0) { |
91 | error_report("%s: unable to assign ioeventfd: %d", __func__, r); | |
92 | virtio_queue_set_host_notifier_fd_handler(vq, false, false); | |
93 | event_notifier_cleanup(notifier); | |
94 | return r; | |
95 | } | |
96 | } else { | |
97 | virtio_queue_set_host_notifier_fd_handler(vq, false, false); | |
cc3ac9c4 | 98 | s390_assign_subch_ioeventfd(notifier, sch_id, n, assign); |
b4436a0b CH |
99 | event_notifier_cleanup(notifier); |
100 | } | |
101 | return r; | |
102 | } | |
103 | ||
104 | static void virtio_ccw_start_ioeventfd(VirtioCcwDevice *dev) | |
105 | { | |
f24a6840 | 106 | VirtIODevice *vdev; |
b4436a0b CH |
107 | int n, r; |
108 | ||
109 | if (!(dev->flags & VIRTIO_CCW_FLAG_USE_IOEVENTFD) || | |
320ce850 | 110 | dev->ioeventfd_disabled || |
b4436a0b CH |
111 | dev->ioeventfd_started) { |
112 | return; | |
113 | } | |
f24a6840 | 114 | vdev = virtio_bus_get_device(&dev->bus); |
8dfbaa6a | 115 | for (n = 0; n < VIRTIO_CCW_QUEUE_MAX; n++) { |
f24a6840 | 116 | if (!virtio_queue_get_num(vdev, n)) { |
b4436a0b CH |
117 | continue; |
118 | } | |
119 | r = virtio_ccw_set_guest2host_notifier(dev, n, true, true); | |
120 | if (r < 0) { | |
121 | goto assign_error; | |
122 | } | |
123 | } | |
124 | dev->ioeventfd_started = true; | |
125 | return; | |
126 | ||
127 | assign_error: | |
128 | while (--n >= 0) { | |
f24a6840 | 129 | if (!virtio_queue_get_num(vdev, n)) { |
b4436a0b CH |
130 | continue; |
131 | } | |
132 | r = virtio_ccw_set_guest2host_notifier(dev, n, false, false); | |
133 | assert(r >= 0); | |
134 | } | |
135 | dev->ioeventfd_started = false; | |
136 | /* Disable ioeventfd for this device. */ | |
137 | dev->flags &= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD; | |
138 | error_report("%s: failed. Fallback to userspace (slower).", __func__); | |
139 | } | |
140 | ||
141 | static void virtio_ccw_stop_ioeventfd(VirtioCcwDevice *dev) | |
142 | { | |
f24a6840 | 143 | VirtIODevice *vdev; |
b4436a0b CH |
144 | int n, r; |
145 | ||
146 | if (!dev->ioeventfd_started) { | |
147 | return; | |
148 | } | |
f24a6840 | 149 | vdev = virtio_bus_get_device(&dev->bus); |
8dfbaa6a | 150 | for (n = 0; n < VIRTIO_CCW_QUEUE_MAX; n++) { |
f24a6840 | 151 | if (!virtio_queue_get_num(vdev, n)) { |
b4436a0b CH |
152 | continue; |
153 | } | |
154 | r = virtio_ccw_set_guest2host_notifier(dev, n, false, false); | |
155 | assert(r >= 0); | |
156 | } | |
157 | dev->ioeventfd_started = false; | |
158 | } | |
159 | ||
a5cf2bb4 CH |
160 | VirtualCssBus *virtual_css_bus_init(void) |
161 | { | |
162 | VirtualCssBus *cbus; | |
163 | BusState *bus; | |
164 | DeviceState *dev; | |
165 | ||
166 | /* Create bridge device */ | |
167 | dev = qdev_create(NULL, "virtual-css-bridge"); | |
168 | qdev_init_nofail(dev); | |
169 | ||
170 | /* Create bus on bridge device */ | |
171 | bus = qbus_create(TYPE_VIRTUAL_CSS_BUS, dev, "virtual-css"); | |
172 | cbus = VIRTUAL_CSS_BUS(bus); | |
173 | ||
174 | /* Enable hotplugging */ | |
277bc95e | 175 | qbus_set_hotplug_handler(bus, dev, &error_abort); |
a5cf2bb4 CH |
176 | |
177 | return cbus; | |
178 | } | |
179 | ||
180 | /* Communication blocks used by several channel commands. */ | |
0db87e0d | 181 | typedef struct VqInfoBlockLegacy { |
a5cf2bb4 CH |
182 | uint64_t queue; |
183 | uint32_t align; | |
184 | uint16_t index; | |
185 | uint16_t num; | |
0db87e0d CH |
186 | } QEMU_PACKED VqInfoBlockLegacy; |
187 | ||
188 | typedef struct VqInfoBlock { | |
189 | uint64_t desc; | |
190 | uint32_t res0; | |
191 | uint16_t index; | |
192 | uint16_t num; | |
193 | uint64_t avail; | |
194 | uint64_t used; | |
a5cf2bb4 CH |
195 | } QEMU_PACKED VqInfoBlock; |
196 | ||
197 | typedef struct VqConfigBlock { | |
198 | uint16_t index; | |
199 | uint16_t num_max; | |
200 | } QEMU_PACKED VqConfigBlock; | |
201 | ||
202 | typedef struct VirtioFeatDesc { | |
203 | uint32_t features; | |
204 | uint8_t index; | |
205 | } QEMU_PACKED VirtioFeatDesc; | |
206 | ||
7e749462 CH |
207 | typedef struct VirtioThinintInfo { |
208 | hwaddr summary_indicator; | |
209 | hwaddr device_indicator; | |
210 | uint64_t ind_bit; | |
211 | uint8_t isc; | |
212 | } QEMU_PACKED VirtioThinintInfo; | |
213 | ||
c42767f2 TH |
214 | typedef struct VirtioRevInfo { |
215 | uint16_t revision; | |
216 | uint16_t length; | |
217 | uint8_t data[0]; | |
218 | } QEMU_PACKED VirtioRevInfo; | |
219 | ||
a5cf2bb4 | 220 | /* Specify where the virtqueues for the subchannel are in guest memory. */ |
0db87e0d CH |
221 | static int virtio_ccw_set_vqs(SubchDev *sch, VqInfoBlock *info, |
222 | VqInfoBlockLegacy *linfo) | |
a5cf2bb4 | 223 | { |
f24a6840 | 224 | VirtIODevice *vdev = virtio_ccw_get_vdev(sch); |
0db87e0d CH |
225 | uint16_t index = info ? info->index : linfo->index; |
226 | uint16_t num = info ? info->num : linfo->num; | |
227 | uint64_t desc = info ? info->desc : linfo->queue; | |
a5cf2bb4 | 228 | |
8dfbaa6a | 229 | if (index >= VIRTIO_CCW_QUEUE_MAX) { |
a5cf2bb4 CH |
230 | return -EINVAL; |
231 | } | |
232 | ||
233 | /* Current code in virtio.c relies on 4K alignment. */ | |
0db87e0d | 234 | if (linfo && desc && (linfo->align != 4096)) { |
a5cf2bb4 CH |
235 | return -EINVAL; |
236 | } | |
237 | ||
f24a6840 | 238 | if (!vdev) { |
a5cf2bb4 CH |
239 | return -EINVAL; |
240 | } | |
241 | ||
0db87e0d CH |
242 | if (info) { |
243 | virtio_queue_set_rings(vdev, index, desc, info->avail, info->used); | |
244 | } else { | |
245 | virtio_queue_set_addr(vdev, index, desc); | |
246 | } | |
247 | if (!desc) { | |
955cc8c9 | 248 | virtio_queue_set_vector(vdev, index, VIRTIO_NO_VECTOR); |
a5cf2bb4 | 249 | } else { |
79cd0c80 CH |
250 | if (info) { |
251 | /* virtio-1 allows changing the ring size. */ | |
252 | if (virtio_queue_get_num(vdev, index) < num) { | |
253 | /* Fail if we exceed the maximum number. */ | |
254 | return -EINVAL; | |
255 | } | |
256 | virtio_queue_set_num(vdev, index, num); | |
257 | } else if (virtio_queue_get_num(vdev, index) > num) { | |
258 | /* Fail if we don't have a big enough queue. */ | |
a5cf2bb4 CH |
259 | return -EINVAL; |
260 | } | |
79cd0c80 | 261 | /* We ignore possible increased num for legacy for compatibility. */ |
f24a6840 | 262 | virtio_queue_set_vector(vdev, index, index); |
a5cf2bb4 CH |
263 | } |
264 | /* tell notify handler in case of config change */ | |
8dfbaa6a | 265 | vdev->config_vector = VIRTIO_CCW_QUEUE_MAX; |
a5cf2bb4 CH |
266 | return 0; |
267 | } | |
268 | ||
fa8b0ca5 CH |
269 | static void virtio_ccw_reset_virtio(VirtioCcwDevice *dev, VirtIODevice *vdev) |
270 | { | |
271 | virtio_ccw_stop_ioeventfd(dev); | |
272 | virtio_reset(vdev); | |
273 | if (dev->indicators) { | |
274 | release_indicator(&dev->routes.adapter, dev->indicators); | |
275 | dev->indicators = NULL; | |
276 | } | |
277 | if (dev->indicators2) { | |
278 | release_indicator(&dev->routes.adapter, dev->indicators2); | |
279 | dev->indicators2 = NULL; | |
280 | } | |
281 | if (dev->summary_indicator) { | |
282 | release_indicator(&dev->routes.adapter, dev->summary_indicator); | |
283 | dev->summary_indicator = NULL; | |
284 | } | |
285 | dev->sch->thinint_active = false; | |
286 | } | |
287 | ||
0db87e0d CH |
288 | static int virtio_ccw_handle_set_vq(SubchDev *sch, CCW1 ccw, bool check_len, |
289 | bool is_legacy) | |
a5cf2bb4 CH |
290 | { |
291 | int ret; | |
292 | VqInfoBlock info; | |
0db87e0d CH |
293 | VqInfoBlockLegacy linfo; |
294 | size_t info_len = is_legacy ? sizeof(linfo) : sizeof(info); | |
295 | ||
296 | if (check_len) { | |
297 | if (ccw.count != info_len) { | |
298 | return -EINVAL; | |
299 | } | |
300 | } else if (ccw.count < info_len) { | |
301 | /* Can't execute command. */ | |
302 | return -EINVAL; | |
303 | } | |
304 | if (!ccw.cda) { | |
305 | return -EFAULT; | |
306 | } | |
307 | if (is_legacy) { | |
308 | linfo.queue = address_space_ldq_be(&address_space_memory, ccw.cda, | |
309 | MEMTXATTRS_UNSPECIFIED, NULL); | |
310 | linfo.align = address_space_ldl_be(&address_space_memory, | |
311 | ccw.cda + sizeof(linfo.queue), | |
312 | MEMTXATTRS_UNSPECIFIED, | |
313 | NULL); | |
314 | linfo.index = address_space_lduw_be(&address_space_memory, | |
315 | ccw.cda + sizeof(linfo.queue) | |
316 | + sizeof(linfo.align), | |
317 | MEMTXATTRS_UNSPECIFIED, | |
318 | NULL); | |
319 | linfo.num = address_space_lduw_be(&address_space_memory, | |
320 | ccw.cda + sizeof(linfo.queue) | |
321 | + sizeof(linfo.align) | |
322 | + sizeof(linfo.index), | |
323 | MEMTXATTRS_UNSPECIFIED, | |
324 | NULL); | |
325 | ret = virtio_ccw_set_vqs(sch, NULL, &linfo); | |
326 | } else { | |
327 | info.desc = address_space_ldq_be(&address_space_memory, ccw.cda, | |
328 | MEMTXATTRS_UNSPECIFIED, NULL); | |
329 | info.index = address_space_lduw_be(&address_space_memory, | |
330 | ccw.cda + sizeof(info.desc) | |
331 | + sizeof(info.res0), | |
332 | MEMTXATTRS_UNSPECIFIED, NULL); | |
333 | info.num = address_space_lduw_be(&address_space_memory, | |
334 | ccw.cda + sizeof(info.desc) | |
335 | + sizeof(info.res0) | |
336 | + sizeof(info.index), | |
337 | MEMTXATTRS_UNSPECIFIED, NULL); | |
338 | info.avail = address_space_ldq_be(&address_space_memory, | |
339 | ccw.cda + sizeof(info.desc) | |
340 | + sizeof(info.res0) | |
341 | + sizeof(info.index) | |
342 | + sizeof(info.num), | |
343 | MEMTXATTRS_UNSPECIFIED, NULL); | |
344 | info.used = address_space_ldq_be(&address_space_memory, | |
345 | ccw.cda + sizeof(info.desc) | |
346 | + sizeof(info.res0) | |
347 | + sizeof(info.index) | |
348 | + sizeof(info.num) | |
349 | + sizeof(info.avail), | |
350 | MEMTXATTRS_UNSPECIFIED, NULL); | |
351 | ret = virtio_ccw_set_vqs(sch, &info, NULL); | |
352 | } | |
353 | sch->curr_status.scsw.count = 0; | |
354 | return ret; | |
355 | } | |
356 | ||
357 | static int virtio_ccw_cb(SubchDev *sch, CCW1 ccw) | |
358 | { | |
359 | int ret; | |
c42767f2 | 360 | VirtioRevInfo revinfo; |
a5cf2bb4 CH |
361 | uint8_t status; |
362 | VirtioFeatDesc features; | |
363 | void *config; | |
364 | hwaddr indicators; | |
365 | VqConfigBlock vq_config; | |
366 | VirtioCcwDevice *dev = sch->driver_data; | |
f24a6840 | 367 | VirtIODevice *vdev = virtio_ccw_get_vdev(sch); |
a5cf2bb4 CH |
368 | bool check_len; |
369 | int len; | |
370 | hwaddr hw_len; | |
7e749462 | 371 | VirtioThinintInfo *thinint; |
a5cf2bb4 CH |
372 | |
373 | if (!dev) { | |
374 | return -EINVAL; | |
375 | } | |
376 | ||
377 | trace_virtio_ccw_interpret_ccw(sch->cssid, sch->ssid, sch->schid, | |
378 | ccw.cmd_code); | |
379 | check_len = !((ccw.flags & CCW_FLAG_SLI) && !(ccw.flags & CCW_FLAG_DC)); | |
380 | ||
381 | /* Look at the command. */ | |
382 | switch (ccw.cmd_code) { | |
383 | case CCW_CMD_SET_VQ: | |
0db87e0d | 384 | ret = virtio_ccw_handle_set_vq(sch, ccw, check_len, dev->revision < 1); |
a5cf2bb4 CH |
385 | break; |
386 | case CCW_CMD_VDEV_RESET: | |
fa8b0ca5 | 387 | virtio_ccw_reset_virtio(dev, vdev); |
a5cf2bb4 CH |
388 | ret = 0; |
389 | break; | |
390 | case CCW_CMD_READ_FEAT: | |
391 | if (check_len) { | |
392 | if (ccw.count != sizeof(features)) { | |
393 | ret = -EINVAL; | |
394 | break; | |
395 | } | |
396 | } else if (ccw.count < sizeof(features)) { | |
397 | /* Can't execute command. */ | |
398 | ret = -EINVAL; | |
399 | break; | |
400 | } | |
401 | if (!ccw.cda) { | |
402 | ret = -EFAULT; | |
403 | } else { | |
42874d3a PM |
404 | features.index = address_space_ldub(&address_space_memory, |
405 | ccw.cda | |
406 | + sizeof(features.features), | |
407 | MEMTXATTRS_UNSPECIFIED, | |
408 | NULL); | |
6b8f1020 | 409 | if (features.index == 0) { |
542571d5 CH |
410 | if (dev->revision >= 1) { |
411 | /* Don't offer legacy features for modern devices. */ | |
412 | features.features = (uint32_t) | |
413 | (vdev->host_features & ~VIRTIO_LEGACY_FEATURES); | |
414 | } else { | |
415 | features.features = (uint32_t)vdev->host_features; | |
416 | } | |
b4f8f9df | 417 | } else if ((features.index == 1) && (dev->revision >= 1)) { |
c42767f2 | 418 | /* |
b4f8f9df CH |
419 | * Only offer feature bits beyond 31 if the guest has |
420 | * negotiated at least revision 1. | |
c42767f2 | 421 | */ |
b4f8f9df | 422 | features.features = (uint32_t)(vdev->host_features >> 32); |
a5cf2bb4 CH |
423 | } else { |
424 | /* Return zeroes if the guest supports more feature bits. */ | |
425 | features.features = 0; | |
426 | } | |
42874d3a PM |
427 | address_space_stl_le(&address_space_memory, ccw.cda, |
428 | features.features, MEMTXATTRS_UNSPECIFIED, | |
429 | NULL); | |
a5cf2bb4 CH |
430 | sch->curr_status.scsw.count = ccw.count - sizeof(features); |
431 | ret = 0; | |
432 | } | |
433 | break; | |
434 | case CCW_CMD_WRITE_FEAT: | |
435 | if (check_len) { | |
436 | if (ccw.count != sizeof(features)) { | |
437 | ret = -EINVAL; | |
438 | break; | |
439 | } | |
440 | } else if (ccw.count < sizeof(features)) { | |
441 | /* Can't execute command. */ | |
442 | ret = -EINVAL; | |
443 | break; | |
444 | } | |
445 | if (!ccw.cda) { | |
446 | ret = -EFAULT; | |
447 | } else { | |
42874d3a PM |
448 | features.index = address_space_ldub(&address_space_memory, |
449 | ccw.cda | |
450 | + sizeof(features.features), | |
451 | MEMTXATTRS_UNSPECIFIED, | |
452 | NULL); | |
453 | features.features = address_space_ldl_le(&address_space_memory, | |
454 | ccw.cda, | |
455 | MEMTXATTRS_UNSPECIFIED, | |
456 | NULL); | |
6b8f1020 | 457 | if (features.index == 0) { |
c42767f2 TH |
458 | virtio_set_features(vdev, |
459 | (vdev->guest_features & 0xffffffff00000000ULL) | | |
460 | features.features); | |
b4f8f9df | 461 | } else if ((features.index == 1) && (dev->revision >= 1)) { |
c42767f2 | 462 | /* |
b4f8f9df CH |
463 | * If the guest did not negotiate at least revision 1, |
464 | * we did not offer it any feature bits beyond 31. Such a | |
465 | * guest passing us any bit here is therefore buggy. | |
c42767f2 | 466 | */ |
c42767f2 TH |
467 | virtio_set_features(vdev, |
468 | (vdev->guest_features & 0x00000000ffffffffULL) | | |
469 | ((uint64_t)features.features << 32)); | |
a5cf2bb4 CH |
470 | } else { |
471 | /* | |
472 | * If the guest supports more feature bits, assert that it | |
473 | * passes us zeroes for those we don't support. | |
474 | */ | |
475 | if (features.features) { | |
476 | fprintf(stderr, "Guest bug: features[%i]=%x (expected 0)\n", | |
477 | features.index, features.features); | |
478 | /* XXX: do a unit check here? */ | |
479 | } | |
480 | } | |
481 | sch->curr_status.scsw.count = ccw.count - sizeof(features); | |
482 | ret = 0; | |
483 | } | |
484 | break; | |
485 | case CCW_CMD_READ_CONF: | |
486 | if (check_len) { | |
f24a6840 | 487 | if (ccw.count > vdev->config_len) { |
a5cf2bb4 CH |
488 | ret = -EINVAL; |
489 | break; | |
490 | } | |
491 | } | |
f24a6840 | 492 | len = MIN(ccw.count, vdev->config_len); |
a5cf2bb4 CH |
493 | if (!ccw.cda) { |
494 | ret = -EFAULT; | |
495 | } else { | |
f24a6840 | 496 | virtio_bus_get_vdev_config(&dev->bus, vdev->config); |
a5cf2bb4 | 497 | /* XXX config space endianness */ |
f24a6840 | 498 | cpu_physical_memory_write(ccw.cda, vdev->config, len); |
a5cf2bb4 CH |
499 | sch->curr_status.scsw.count = ccw.count - len; |
500 | ret = 0; | |
501 | } | |
502 | break; | |
503 | case CCW_CMD_WRITE_CONF: | |
504 | if (check_len) { | |
f24a6840 | 505 | if (ccw.count > vdev->config_len) { |
a5cf2bb4 CH |
506 | ret = -EINVAL; |
507 | break; | |
508 | } | |
509 | } | |
f24a6840 | 510 | len = MIN(ccw.count, vdev->config_len); |
a5cf2bb4 CH |
511 | hw_len = len; |
512 | if (!ccw.cda) { | |
513 | ret = -EFAULT; | |
514 | } else { | |
515 | config = cpu_physical_memory_map(ccw.cda, &hw_len, 0); | |
516 | if (!config) { | |
517 | ret = -EFAULT; | |
518 | } else { | |
519 | len = hw_len; | |
520 | /* XXX config space endianness */ | |
f24a6840 | 521 | memcpy(vdev->config, config, len); |
a5cf2bb4 | 522 | cpu_physical_memory_unmap(config, hw_len, 0, hw_len); |
f24a6840 | 523 | virtio_bus_set_vdev_config(&dev->bus, vdev->config); |
a5cf2bb4 CH |
524 | sch->curr_status.scsw.count = ccw.count - len; |
525 | ret = 0; | |
526 | } | |
527 | } | |
528 | break; | |
529 | case CCW_CMD_WRITE_STATUS: | |
530 | if (check_len) { | |
531 | if (ccw.count != sizeof(status)) { | |
532 | ret = -EINVAL; | |
533 | break; | |
534 | } | |
535 | } else if (ccw.count < sizeof(status)) { | |
536 | /* Can't execute command. */ | |
537 | ret = -EINVAL; | |
538 | break; | |
539 | } | |
540 | if (!ccw.cda) { | |
541 | ret = -EFAULT; | |
542 | } else { | |
42874d3a PM |
543 | status = address_space_ldub(&address_space_memory, ccw.cda, |
544 | MEMTXATTRS_UNSPECIFIED, NULL); | |
b4436a0b CH |
545 | if (!(status & VIRTIO_CONFIG_S_DRIVER_OK)) { |
546 | virtio_ccw_stop_ioeventfd(dev); | |
547 | } | |
0b352fd6 CH |
548 | if (virtio_set_status(vdev, status) == 0) { |
549 | if (vdev->status == 0) { | |
fa8b0ca5 | 550 | virtio_ccw_reset_virtio(dev, vdev); |
0b352fd6 CH |
551 | } |
552 | if (status & VIRTIO_CONFIG_S_DRIVER_OK) { | |
553 | virtio_ccw_start_ioeventfd(dev); | |
554 | } | |
555 | sch->curr_status.scsw.count = ccw.count - sizeof(status); | |
556 | ret = 0; | |
557 | } else { | |
558 | /* Trigger a command reject. */ | |
559 | ret = -ENOSYS; | |
b4436a0b | 560 | } |
a5cf2bb4 CH |
561 | } |
562 | break; | |
563 | case CCW_CMD_SET_IND: | |
564 | if (check_len) { | |
565 | if (ccw.count != sizeof(indicators)) { | |
566 | ret = -EINVAL; | |
567 | break; | |
568 | } | |
569 | } else if (ccw.count < sizeof(indicators)) { | |
570 | /* Can't execute command. */ | |
571 | ret = -EINVAL; | |
572 | break; | |
573 | } | |
7e749462 CH |
574 | if (sch->thinint_active) { |
575 | /* Trigger a command reject. */ | |
576 | ret = -ENOSYS; | |
577 | break; | |
578 | } | |
d1db1fa8 | 579 | if (!ccw.cda) { |
a5cf2bb4 CH |
580 | ret = -EFAULT; |
581 | } else { | |
42874d3a PM |
582 | indicators = address_space_ldq_be(&address_space_memory, ccw.cda, |
583 | MEMTXATTRS_UNSPECIFIED, NULL); | |
7bca3892 | 584 | dev->indicators = get_indicator(indicators, sizeof(uint64_t)); |
a5cf2bb4 CH |
585 | sch->curr_status.scsw.count = ccw.count - sizeof(indicators); |
586 | ret = 0; | |
587 | } | |
588 | break; | |
589 | case CCW_CMD_SET_CONF_IND: | |
590 | if (check_len) { | |
591 | if (ccw.count != sizeof(indicators)) { | |
592 | ret = -EINVAL; | |
593 | break; | |
594 | } | |
595 | } else if (ccw.count < sizeof(indicators)) { | |
596 | /* Can't execute command. */ | |
597 | ret = -EINVAL; | |
598 | break; | |
599 | } | |
d1db1fa8 | 600 | if (!ccw.cda) { |
a5cf2bb4 CH |
601 | ret = -EFAULT; |
602 | } else { | |
42874d3a PM |
603 | indicators = address_space_ldq_be(&address_space_memory, ccw.cda, |
604 | MEMTXATTRS_UNSPECIFIED, NULL); | |
7bca3892 | 605 | dev->indicators2 = get_indicator(indicators, sizeof(uint64_t)); |
a5cf2bb4 CH |
606 | sch->curr_status.scsw.count = ccw.count - sizeof(indicators); |
607 | ret = 0; | |
608 | } | |
609 | break; | |
610 | case CCW_CMD_READ_VQ_CONF: | |
611 | if (check_len) { | |
612 | if (ccw.count != sizeof(vq_config)) { | |
613 | ret = -EINVAL; | |
614 | break; | |
615 | } | |
616 | } else if (ccw.count < sizeof(vq_config)) { | |
617 | /* Can't execute command. */ | |
618 | ret = -EINVAL; | |
619 | break; | |
620 | } | |
621 | if (!ccw.cda) { | |
622 | ret = -EFAULT; | |
623 | } else { | |
42874d3a PM |
624 | vq_config.index = address_space_lduw_be(&address_space_memory, |
625 | ccw.cda, | |
626 | MEMTXATTRS_UNSPECIFIED, | |
627 | NULL); | |
8dfbaa6a | 628 | if (vq_config.index >= VIRTIO_CCW_QUEUE_MAX) { |
d03a3630 CH |
629 | ret = -EINVAL; |
630 | break; | |
631 | } | |
f24a6840 | 632 | vq_config.num_max = virtio_queue_get_num(vdev, |
a5cf2bb4 | 633 | vq_config.index); |
42874d3a PM |
634 | address_space_stw_be(&address_space_memory, |
635 | ccw.cda + sizeof(vq_config.index), | |
636 | vq_config.num_max, | |
637 | MEMTXATTRS_UNSPECIFIED, | |
638 | NULL); | |
a5cf2bb4 CH |
639 | sch->curr_status.scsw.count = ccw.count - sizeof(vq_config); |
640 | ret = 0; | |
641 | } | |
642 | break; | |
7e749462 CH |
643 | case CCW_CMD_SET_IND_ADAPTER: |
644 | if (check_len) { | |
645 | if (ccw.count != sizeof(*thinint)) { | |
646 | ret = -EINVAL; | |
647 | break; | |
648 | } | |
649 | } else if (ccw.count < sizeof(*thinint)) { | |
650 | /* Can't execute command. */ | |
651 | ret = -EINVAL; | |
652 | break; | |
653 | } | |
654 | len = sizeof(*thinint); | |
655 | hw_len = len; | |
656 | if (!ccw.cda) { | |
657 | ret = -EFAULT; | |
658 | } else if (dev->indicators && !sch->thinint_active) { | |
659 | /* Trigger a command reject. */ | |
660 | ret = -ENOSYS; | |
661 | } else { | |
662 | thinint = cpu_physical_memory_map(ccw.cda, &hw_len, 0); | |
663 | if (!thinint) { | |
664 | ret = -EFAULT; | |
665 | } else { | |
7d45285f CH |
666 | uint64_t ind_bit = ldq_be_p(&thinint->ind_bit); |
667 | ||
7e749462 | 668 | len = hw_len; |
7bca3892 | 669 | dev->summary_indicator = |
7d45285f CH |
670 | get_indicator(ldq_be_p(&thinint->summary_indicator), |
671 | sizeof(uint8_t)); | |
672 | dev->indicators = | |
673 | get_indicator(ldq_be_p(&thinint->device_indicator), | |
674 | ind_bit / 8 + 1); | |
7e749462 | 675 | dev->thinint_isc = thinint->isc; |
7d45285f | 676 | dev->routes.adapter.ind_offset = ind_bit; |
d426d9fb | 677 | dev->routes.adapter.summary_offset = 7; |
7e749462 | 678 | cpu_physical_memory_unmap(thinint, hw_len, 0, hw_len); |
03cf077a CH |
679 | ret = css_register_io_adapter(CSS_IO_ADAPTER_VIRTIO, |
680 | dev->thinint_isc, true, false, | |
d426d9fb | 681 | &dev->routes.adapter.adapter_id); |
03cf077a | 682 | assert(ret == 0); |
7bca3892 CH |
683 | sch->thinint_active = ((dev->indicators != NULL) && |
684 | (dev->summary_indicator != NULL)); | |
7e749462 CH |
685 | sch->curr_status.scsw.count = ccw.count - len; |
686 | ret = 0; | |
687 | } | |
688 | } | |
689 | break; | |
c42767f2 TH |
690 | case CCW_CMD_SET_VIRTIO_REV: |
691 | len = sizeof(revinfo); | |
692 | if (ccw.count < len) { | |
693 | ret = -EINVAL; | |
694 | break; | |
695 | } | |
696 | if (!ccw.cda) { | |
697 | ret = -EFAULT; | |
698 | break; | |
699 | } | |
700 | revinfo.revision = | |
701 | address_space_lduw_be(&address_space_memory, ccw.cda, | |
702 | MEMTXATTRS_UNSPECIFIED, NULL); | |
703 | revinfo.length = | |
704 | address_space_lduw_be(&address_space_memory, | |
705 | ccw.cda + sizeof(revinfo.revision), | |
706 | MEMTXATTRS_UNSPECIFIED, NULL); | |
707 | if (ccw.count < len + revinfo.length || | |
708 | (check_len && ccw.count > len + revinfo.length)) { | |
709 | ret = -EINVAL; | |
710 | break; | |
711 | } | |
712 | /* | |
713 | * Once we start to support revisions with additional data, we'll | |
714 | * need to fetch it here. Nothing to do for now, though. | |
715 | */ | |
716 | if (dev->revision >= 0 || | |
542571d5 | 717 | revinfo.revision > virtio_ccw_rev_max(dev)) { |
c42767f2 TH |
718 | ret = -ENOSYS; |
719 | break; | |
720 | } | |
721 | ret = 0; | |
722 | dev->revision = revinfo.revision; | |
723 | break; | |
a5cf2bb4 | 724 | default: |
8d034a6f | 725 | ret = -ENOSYS; |
a5cf2bb4 CH |
726 | break; |
727 | } | |
728 | return ret; | |
729 | } | |
730 | ||
c42767f2 TH |
731 | static void virtio_sch_disable_cb(SubchDev *sch) |
732 | { | |
733 | VirtioCcwDevice *dev = sch->driver_data; | |
734 | ||
735 | dev->revision = -1; | |
736 | } | |
737 | ||
1fa75523 | 738 | static void virtio_ccw_device_realize(VirtioCcwDevice *dev, Error **errp) |
a5cf2bb4 CH |
739 | { |
740 | unsigned int cssid = 0; | |
741 | unsigned int ssid = 0; | |
742 | unsigned int schid; | |
743 | unsigned int devno; | |
744 | bool have_devno = false; | |
745 | bool found = false; | |
746 | SubchDev *sch; | |
a5cf2bb4 | 747 | int num; |
1fa75523 CH |
748 | Error *err = NULL; |
749 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_GET_CLASS(dev); | |
a5cf2bb4 CH |
750 | |
751 | sch = g_malloc0(sizeof(SubchDev)); | |
752 | ||
753 | sch->driver_data = dev; | |
754 | dev->sch = sch; | |
755 | ||
7bca3892 | 756 | dev->indicators = NULL; |
a5cf2bb4 CH |
757 | |
758 | /* Initialize subchannel structure. */ | |
759 | sch->channel_prog = 0x0; | |
760 | sch->last_cmd_valid = false; | |
7e749462 | 761 | sch->thinint_active = false; |
a5cf2bb4 CH |
762 | /* |
763 | * Use a device number if provided. Otherwise, fall back to subchannel | |
764 | * number. | |
765 | */ | |
766 | if (dev->bus_id) { | |
767 | num = sscanf(dev->bus_id, "%x.%x.%04x", &cssid, &ssid, &devno); | |
768 | if (num == 3) { | |
769 | if ((cssid > MAX_CSSID) || (ssid > MAX_SSID)) { | |
5e5ced38 MA |
770 | error_setg(errp, "Invalid cssid or ssid: cssid %x, ssid %x", |
771 | cssid, ssid); | |
a5cf2bb4 CH |
772 | goto out_err; |
773 | } | |
774 | /* Enforce use of virtual cssid. */ | |
775 | if (cssid != VIRTUAL_CSSID) { | |
5e5ced38 MA |
776 | error_setg(errp, "cssid %x not valid for virtio devices", |
777 | cssid); | |
a5cf2bb4 CH |
778 | goto out_err; |
779 | } | |
780 | if (css_devno_used(cssid, ssid, devno)) { | |
5e5ced38 MA |
781 | error_setg(errp, "Device %x.%x.%04x already exists", |
782 | cssid, ssid, devno); | |
a5cf2bb4 CH |
783 | goto out_err; |
784 | } | |
785 | sch->cssid = cssid; | |
786 | sch->ssid = ssid; | |
787 | sch->devno = devno; | |
788 | have_devno = true; | |
789 | } else { | |
5e5ced38 | 790 | error_setg(errp, "Malformed devno parameter '%s'", dev->bus_id); |
a5cf2bb4 CH |
791 | goto out_err; |
792 | } | |
793 | } | |
794 | ||
795 | /* Find the next free id. */ | |
796 | if (have_devno) { | |
797 | for (schid = 0; schid <= MAX_SCHID; schid++) { | |
798 | if (!css_find_subch(1, cssid, ssid, schid)) { | |
799 | sch->schid = schid; | |
800 | css_subch_assign(cssid, ssid, schid, devno, sch); | |
801 | found = true; | |
802 | break; | |
803 | } | |
804 | } | |
805 | if (!found) { | |
5e5ced38 MA |
806 | error_setg(errp, "No free subchannel found for %x.%x.%04x", |
807 | cssid, ssid, devno); | |
a5cf2bb4 CH |
808 | goto out_err; |
809 | } | |
810 | trace_virtio_ccw_new_device(cssid, ssid, schid, devno, | |
811 | "user-configured"); | |
812 | } else { | |
813 | cssid = VIRTUAL_CSSID; | |
814 | for (ssid = 0; ssid <= MAX_SSID; ssid++) { | |
815 | for (schid = 0; schid <= MAX_SCHID; schid++) { | |
816 | if (!css_find_subch(1, cssid, ssid, schid)) { | |
817 | sch->cssid = cssid; | |
818 | sch->ssid = ssid; | |
819 | sch->schid = schid; | |
820 | devno = schid; | |
821 | /* | |
822 | * If the devno is already taken, look further in this | |
823 | * subchannel set. | |
824 | */ | |
825 | while (css_devno_used(cssid, ssid, devno)) { | |
826 | if (devno == MAX_SCHID) { | |
827 | devno = 0; | |
828 | } else if (devno == schid - 1) { | |
5e5ced38 | 829 | error_setg(errp, "No free devno found"); |
a5cf2bb4 CH |
830 | goto out_err; |
831 | } else { | |
832 | devno++; | |
833 | } | |
834 | } | |
835 | sch->devno = devno; | |
836 | css_subch_assign(cssid, ssid, schid, devno, sch); | |
837 | found = true; | |
838 | break; | |
839 | } | |
840 | } | |
841 | if (found) { | |
842 | break; | |
843 | } | |
844 | } | |
845 | if (!found) { | |
5e5ced38 | 846 | error_setg(errp, "Virtual channel subsystem is full!"); |
a5cf2bb4 CH |
847 | goto out_err; |
848 | } | |
849 | trace_virtio_ccw_new_device(cssid, ssid, schid, devno, | |
850 | "auto-configured"); | |
851 | } | |
852 | ||
853 | /* Build initial schib. */ | |
854 | css_sch_build_virtual_schib(sch, 0, VIRTIO_CCW_CHPID_TYPE); | |
855 | ||
856 | sch->ccw_cb = virtio_ccw_cb; | |
c42767f2 | 857 | sch->disable_cb = virtio_sch_disable_cb; |
a5cf2bb4 CH |
858 | |
859 | /* Build senseid data. */ | |
860 | memset(&sch->id, 0, sizeof(SenseId)); | |
861 | sch->id.reserved = 0xff; | |
862 | sch->id.cu_type = VIRTIO_CCW_CU_TYPE; | |
1fa75523 | 863 | |
c42767f2 TH |
864 | dev->revision = -1; |
865 | ||
1fa75523 CH |
866 | if (k->realize) { |
867 | k->realize(dev, &err); | |
868 | } | |
869 | if (err) { | |
870 | error_propagate(errp, err); | |
871 | css_subch_assign(cssid, ssid, schid, devno, NULL); | |
872 | goto out_err; | |
873 | } | |
874 | ||
5e5ced38 | 875 | return; |
a5cf2bb4 CH |
876 | |
877 | out_err: | |
878 | dev->sch = NULL; | |
879 | g_free(sch); | |
a5cf2bb4 CH |
880 | } |
881 | ||
882 | static int virtio_ccw_exit(VirtioCcwDevice *dev) | |
883 | { | |
884 | SubchDev *sch = dev->sch; | |
885 | ||
886 | if (sch) { | |
887 | css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL); | |
888 | g_free(sch); | |
889 | } | |
7bca3892 | 890 | if (dev->indicators) { |
d426d9fb | 891 | release_indicator(&dev->routes.adapter, dev->indicators); |
7bca3892 CH |
892 | dev->indicators = NULL; |
893 | } | |
a5cf2bb4 CH |
894 | return 0; |
895 | } | |
896 | ||
5e5ced38 | 897 | static void virtio_ccw_net_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
a5cf2bb4 | 898 | { |
800ced8c | 899 | DeviceState *qdev = DEVICE(ccw_dev); |
89334c8b FK |
900 | VirtIONetCcw *dev = VIRTIO_NET_CCW(ccw_dev); |
901 | DeviceState *vdev = DEVICE(&dev->vdev); | |
5e5ced38 | 902 | Error *err = NULL; |
a5cf2bb4 | 903 | |
800ced8c FK |
904 | virtio_net_set_netclient_name(&dev->vdev, qdev->id, |
905 | object_get_typename(OBJECT(qdev))); | |
89334c8b | 906 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
5e5ced38 MA |
907 | object_property_set_bool(OBJECT(vdev), true, "realized", &err); |
908 | if (err) { | |
909 | error_propagate(errp, err); | |
a5cf2bb4 | 910 | } |
a5cf2bb4 CH |
911 | } |
912 | ||
89334c8b | 913 | static void virtio_ccw_net_instance_init(Object *obj) |
a5cf2bb4 | 914 | { |
89334c8b | 915 | VirtIONetCcw *dev = VIRTIO_NET_CCW(obj); |
c8075caf GA |
916 | |
917 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
918 | TYPE_VIRTIO_NET); | |
0cf63c3e GA |
919 | object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), |
920 | "bootindex", &error_abort); | |
a5cf2bb4 CH |
921 | } |
922 | ||
5e5ced38 | 923 | static void virtio_ccw_blk_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
a5cf2bb4 | 924 | { |
3400c455 FK |
925 | VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(ccw_dev); |
926 | DeviceState *vdev = DEVICE(&dev->vdev); | |
5e5ced38 MA |
927 | Error *err = NULL; |
928 | ||
3400c455 | 929 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
5e5ced38 MA |
930 | object_property_set_bool(OBJECT(vdev), true, "realized", &err); |
931 | if (err) { | |
932 | error_propagate(errp, err); | |
a5cf2bb4 | 933 | } |
a5cf2bb4 CH |
934 | } |
935 | ||
3400c455 | 936 | static void virtio_ccw_blk_instance_init(Object *obj) |
a5cf2bb4 | 937 | { |
3400c455 | 938 | VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(obj); |
c8075caf GA |
939 | |
940 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
941 | TYPE_VIRTIO_BLK); | |
467b3f33 SH |
942 | object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev),"iothread", |
943 | &error_abort); | |
aeb98ddc GA |
944 | object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), |
945 | "bootindex", &error_abort); | |
a5cf2bb4 CH |
946 | } |
947 | ||
5e5ced38 | 948 | static void virtio_ccw_serial_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
a5cf2bb4 | 949 | { |
6acf69cd FK |
950 | VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(ccw_dev); |
951 | DeviceState *vdev = DEVICE(&dev->vdev); | |
80270a19 | 952 | DeviceState *proxy = DEVICE(ccw_dev); |
5e5ced38 | 953 | Error *err = NULL; |
80270a19 FK |
954 | char *bus_name; |
955 | ||
956 | /* | |
957 | * For command line compatibility, this sets the virtio-serial-device bus | |
958 | * name as before. | |
959 | */ | |
960 | if (proxy->id) { | |
961 | bus_name = g_strdup_printf("%s.0", proxy->id); | |
962 | virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); | |
963 | g_free(bus_name); | |
964 | } | |
a5cf2bb4 | 965 | |
6acf69cd | 966 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
5e5ced38 MA |
967 | object_property_set_bool(OBJECT(vdev), true, "realized", &err); |
968 | if (err) { | |
969 | error_propagate(errp, err); | |
a5cf2bb4 | 970 | } |
a5cf2bb4 CH |
971 | } |
972 | ||
6acf69cd FK |
973 | |
974 | static void virtio_ccw_serial_instance_init(Object *obj) | |
a5cf2bb4 | 975 | { |
6acf69cd | 976 | VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(obj); |
c8075caf GA |
977 | |
978 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
979 | TYPE_VIRTIO_SERIAL); | |
a5cf2bb4 CH |
980 | } |
981 | ||
5e5ced38 | 982 | static void virtio_ccw_balloon_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
a5cf2bb4 | 983 | { |
30bff6a0 FK |
984 | VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(ccw_dev); |
985 | DeviceState *vdev = DEVICE(&dev->vdev); | |
5e5ced38 | 986 | Error *err = NULL; |
a5cf2bb4 | 987 | |
30bff6a0 | 988 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
5e5ced38 MA |
989 | object_property_set_bool(OBJECT(vdev), true, "realized", &err); |
990 | if (err) { | |
991 | error_propagate(errp, err); | |
a5cf2bb4 | 992 | } |
a5cf2bb4 CH |
993 | } |
994 | ||
30bff6a0 | 995 | static void virtio_ccw_balloon_instance_init(Object *obj) |
a5cf2bb4 | 996 | { |
30bff6a0 | 997 | VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(obj); |
ecfa60e3 | 998 | |
a6027b0f DL |
999 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), |
1000 | TYPE_VIRTIO_BALLOON); | |
ecfa60e3 SZ |
1001 | object_property_add_alias(obj, "guest-stats", OBJECT(&dev->vdev), |
1002 | "guest-stats", &error_abort); | |
1003 | object_property_add_alias(obj, "guest-stats-polling-interval", | |
1004 | OBJECT(&dev->vdev), | |
1005 | "guest-stats-polling-interval", &error_abort); | |
a5cf2bb4 CH |
1006 | } |
1007 | ||
5e5ced38 | 1008 | static void virtio_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
a5cf2bb4 | 1009 | { |
c908ea10 FK |
1010 | VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(ccw_dev); |
1011 | DeviceState *vdev = DEVICE(&dev->vdev); | |
6f32a6b4 | 1012 | DeviceState *qdev = DEVICE(ccw_dev); |
5e5ced38 | 1013 | Error *err = NULL; |
6f32a6b4 FK |
1014 | char *bus_name; |
1015 | ||
1016 | /* | |
1017 | * For command line compatibility, this sets the virtio-scsi-device bus | |
1018 | * name as before. | |
1019 | */ | |
1020 | if (qdev->id) { | |
1021 | bus_name = g_strdup_printf("%s.0", qdev->id); | |
1022 | virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); | |
1023 | g_free(bus_name); | |
1024 | } | |
a5cf2bb4 | 1025 | |
c908ea10 | 1026 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
5e5ced38 MA |
1027 | object_property_set_bool(OBJECT(vdev), true, "realized", &err); |
1028 | if (err) { | |
1029 | error_propagate(errp, err); | |
a5cf2bb4 | 1030 | } |
a5cf2bb4 CH |
1031 | } |
1032 | ||
c908ea10 | 1033 | static void virtio_ccw_scsi_instance_init(Object *obj) |
a5cf2bb4 | 1034 | { |
c908ea10 | 1035 | VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(obj); |
c8075caf GA |
1036 | |
1037 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
1038 | TYPE_VIRTIO_SCSI); | |
19d339f1 FZ |
1039 | object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev), "iothread", |
1040 | &error_abort); | |
a5cf2bb4 CH |
1041 | } |
1042 | ||
ccf6916c | 1043 | #ifdef CONFIG_VHOST_SCSI |
5e5ced38 | 1044 | static void vhost_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
ccf6916c PB |
1045 | { |
1046 | VHostSCSICcw *dev = VHOST_SCSI_CCW(ccw_dev); | |
1047 | DeviceState *vdev = DEVICE(&dev->vdev); | |
5e5ced38 | 1048 | Error *err = NULL; |
ccf6916c PB |
1049 | |
1050 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); | |
5e5ced38 MA |
1051 | object_property_set_bool(OBJECT(vdev), true, "realized", &err); |
1052 | if (err) { | |
1053 | error_propagate(errp, err); | |
ccf6916c | 1054 | } |
ccf6916c PB |
1055 | } |
1056 | ||
1057 | static void vhost_ccw_scsi_instance_init(Object *obj) | |
1058 | { | |
1059 | VHostSCSICcw *dev = VHOST_SCSI_CCW(obj); | |
c8075caf GA |
1060 | |
1061 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
1062 | TYPE_VHOST_SCSI); | |
ccf6916c PB |
1063 | } |
1064 | #endif | |
1065 | ||
5e5ced38 | 1066 | static void virtio_ccw_rng_realize(VirtioCcwDevice *ccw_dev, Error **errp) |
2362ecc5 | 1067 | { |
2db26d4c FK |
1068 | VirtIORNGCcw *dev = VIRTIO_RNG_CCW(ccw_dev); |
1069 | DeviceState *vdev = DEVICE(&dev->vdev); | |
5e5ced38 | 1070 | Error *err = NULL; |
2362ecc5 | 1071 | |
2db26d4c | 1072 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); |
5e5ced38 MA |
1073 | object_property_set_bool(OBJECT(vdev), true, "realized", &err); |
1074 | if (err) { | |
1075 | error_propagate(errp, err); | |
1076 | return; | |
2362ecc5 | 1077 | } |
2362ecc5 | 1078 | |
2db26d4c | 1079 | object_property_set_link(OBJECT(dev), |
5b456438 | 1080 | OBJECT(dev->vdev.conf.rng), "rng", |
2db26d4c | 1081 | NULL); |
2362ecc5 CH |
1082 | } |
1083 | ||
a5cf2bb4 CH |
1084 | /* DeviceState to VirtioCcwDevice. Note: used on datapath, |
1085 | * be careful and test performance if you change this. | |
1086 | */ | |
1087 | static inline VirtioCcwDevice *to_virtio_ccw_dev_fast(DeviceState *d) | |
1088 | { | |
1089 | return container_of(d, VirtioCcwDevice, parent_obj); | |
1090 | } | |
1091 | ||
7e749462 CH |
1092 | static uint8_t virtio_set_ind_atomic(SubchDev *sch, uint64_t ind_loc, |
1093 | uint8_t to_be_set) | |
1094 | { | |
1095 | uint8_t ind_old, ind_new; | |
1096 | hwaddr len = 1; | |
1097 | uint8_t *ind_addr; | |
1098 | ||
1099 | ind_addr = cpu_physical_memory_map(ind_loc, &len, 1); | |
1100 | if (!ind_addr) { | |
1101 | error_report("%s(%x.%x.%04x): unable to access indicator", | |
1102 | __func__, sch->cssid, sch->ssid, sch->schid); | |
1103 | return -1; | |
1104 | } | |
1105 | do { | |
1106 | ind_old = *ind_addr; | |
1107 | ind_new = ind_old | to_be_set; | |
1108 | } while (atomic_cmpxchg(ind_addr, ind_old, ind_new) != ind_old); | |
1109 | cpu_physical_memory_unmap(ind_addr, len, 1, len); | |
1110 | ||
1111 | return ind_old; | |
1112 | } | |
1113 | ||
a5cf2bb4 CH |
1114 | static void virtio_ccw_notify(DeviceState *d, uint16_t vector) |
1115 | { | |
1116 | VirtioCcwDevice *dev = to_virtio_ccw_dev_fast(d); | |
1117 | SubchDev *sch = dev->sch; | |
1118 | uint64_t indicators; | |
1119 | ||
1789f4e3 HP |
1120 | /* queue indicators + secondary indicators */ |
1121 | if (vector >= VIRTIO_CCW_QUEUE_MAX + 64) { | |
a5cf2bb4 CH |
1122 | return; |
1123 | } | |
1124 | ||
8dfbaa6a | 1125 | if (vector < VIRTIO_CCW_QUEUE_MAX) { |
7c486976 CH |
1126 | if (!dev->indicators) { |
1127 | return; | |
1128 | } | |
7e749462 CH |
1129 | if (sch->thinint_active) { |
1130 | /* | |
1131 | * In the adapter interrupt case, indicators points to a | |
1132 | * memory area that may be (way) larger than 64 bit and | |
1133 | * ind_bit indicates the start of the indicators in a big | |
1134 | * endian notation. | |
1135 | */ | |
d426d9fb CH |
1136 | uint64_t ind_bit = dev->routes.adapter.ind_offset; |
1137 | ||
7bca3892 | 1138 | virtio_set_ind_atomic(sch, dev->indicators->addr + |
d426d9fb CH |
1139 | (ind_bit + vector) / 8, |
1140 | 0x80 >> ((ind_bit + vector) % 8)); | |
7bca3892 | 1141 | if (!virtio_set_ind_atomic(sch, dev->summary_indicator->addr, |
7e749462 CH |
1142 | 0x01)) { |
1143 | css_adapter_interrupt(dev->thinint_isc); | |
1144 | } | |
1145 | } else { | |
42874d3a PM |
1146 | indicators = address_space_ldq(&address_space_memory, |
1147 | dev->indicators->addr, | |
1148 | MEMTXATTRS_UNSPECIFIED, | |
1149 | NULL); | |
7e749462 | 1150 | indicators |= 1ULL << vector; |
42874d3a PM |
1151 | address_space_stq(&address_space_memory, dev->indicators->addr, |
1152 | indicators, MEMTXATTRS_UNSPECIFIED, NULL); | |
7e749462 CH |
1153 | css_conditional_io_interrupt(sch); |
1154 | } | |
a5cf2bb4 | 1155 | } else { |
7c486976 CH |
1156 | if (!dev->indicators2) { |
1157 | return; | |
1158 | } | |
a5cf2bb4 | 1159 | vector = 0; |
42874d3a PM |
1160 | indicators = address_space_ldq(&address_space_memory, |
1161 | dev->indicators2->addr, | |
1162 | MEMTXATTRS_UNSPECIFIED, | |
1163 | NULL); | |
19380b1b | 1164 | indicators |= 1ULL << vector; |
42874d3a PM |
1165 | address_space_stq(&address_space_memory, dev->indicators2->addr, |
1166 | indicators, MEMTXATTRS_UNSPECIFIED, NULL); | |
7e749462 | 1167 | css_conditional_io_interrupt(sch); |
a5cf2bb4 | 1168 | } |
a5cf2bb4 CH |
1169 | } |
1170 | ||
a5cf2bb4 CH |
1171 | static void virtio_ccw_reset(DeviceState *d) |
1172 | { | |
1173 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
f24a6840 | 1174 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); |
a5cf2bb4 | 1175 | |
fa8b0ca5 | 1176 | virtio_ccw_reset_virtio(dev, vdev); |
a5cf2bb4 CH |
1177 | css_reset_sch(dev->sch); |
1178 | } | |
1179 | ||
b4436a0b CH |
1180 | static void virtio_ccw_vmstate_change(DeviceState *d, bool running) |
1181 | { | |
1182 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
1183 | ||
1184 | if (running) { | |
1185 | virtio_ccw_start_ioeventfd(dev); | |
1186 | } else { | |
1187 | virtio_ccw_stop_ioeventfd(dev); | |
1188 | } | |
1189 | } | |
1190 | ||
320ce850 CH |
1191 | static bool virtio_ccw_query_guest_notifiers(DeviceState *d) |
1192 | { | |
1193 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
1194 | ||
1195 | return !!(dev->sch->curr_status.pmcw.flags & PMCW_FLAGS_MASK_ENA); | |
1196 | } | |
1197 | ||
1198 | static int virtio_ccw_set_host_notifier(DeviceState *d, int n, bool assign) | |
1199 | { | |
1200 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
1201 | ||
1202 | /* Stop using the generic ioeventfd, we are doing eventfd handling | |
1203 | * ourselves below */ | |
1204 | dev->ioeventfd_disabled = assign; | |
1205 | if (assign) { | |
1206 | virtio_ccw_stop_ioeventfd(dev); | |
1207 | } | |
1208 | return virtio_ccw_set_guest2host_notifier(dev, n, assign, false); | |
1209 | } | |
1210 | ||
d426d9fb CH |
1211 | static int virtio_ccw_get_mappings(VirtioCcwDevice *dev) |
1212 | { | |
1213 | int r; | |
1214 | ||
1215 | if (!dev->sch->thinint_active) { | |
1216 | return -EINVAL; | |
1217 | } | |
1218 | ||
1219 | r = map_indicator(&dev->routes.adapter, dev->summary_indicator); | |
1220 | if (r) { | |
1221 | return r; | |
1222 | } | |
1223 | r = map_indicator(&dev->routes.adapter, dev->indicators); | |
1224 | if (r) { | |
1225 | return r; | |
1226 | } | |
1227 | dev->routes.adapter.summary_addr = dev->summary_indicator->map; | |
1228 | dev->routes.adapter.ind_addr = dev->indicators->map; | |
1229 | ||
1230 | return 0; | |
1231 | } | |
1232 | ||
1233 | static int virtio_ccw_setup_irqroutes(VirtioCcwDevice *dev, int nvqs) | |
1234 | { | |
1235 | int i; | |
1236 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); | |
1237 | int ret; | |
1238 | S390FLICState *fs = s390_get_flic(); | |
1239 | S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs); | |
1240 | ||
1241 | ret = virtio_ccw_get_mappings(dev); | |
1242 | if (ret) { | |
1243 | return ret; | |
1244 | } | |
1245 | for (i = 0; i < nvqs; i++) { | |
1246 | if (!virtio_queue_get_num(vdev, i)) { | |
1247 | break; | |
1248 | } | |
1249 | } | |
1250 | dev->routes.num_routes = i; | |
1251 | return fsc->add_adapter_routes(fs, &dev->routes); | |
1252 | } | |
1253 | ||
1254 | static void virtio_ccw_release_irqroutes(VirtioCcwDevice *dev, int nvqs) | |
1255 | { | |
1256 | S390FLICState *fs = s390_get_flic(); | |
1257 | S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs); | |
1258 | ||
1259 | fsc->release_adapter_routes(fs, &dev->routes); | |
1260 | } | |
1261 | ||
1262 | static int virtio_ccw_add_irqfd(VirtioCcwDevice *dev, int n) | |
1263 | { | |
1264 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); | |
1265 | VirtQueue *vq = virtio_get_queue(vdev, n); | |
1266 | EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); | |
1267 | ||
1c9b71a7 EA |
1268 | return kvm_irqchip_add_irqfd_notifier_gsi(kvm_state, notifier, NULL, |
1269 | dev->routes.gsi[n]); | |
d426d9fb CH |
1270 | } |
1271 | ||
1272 | static void virtio_ccw_remove_irqfd(VirtioCcwDevice *dev, int n) | |
1273 | { | |
1274 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); | |
1275 | VirtQueue *vq = virtio_get_queue(vdev, n); | |
1276 | EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); | |
1277 | int ret; | |
1278 | ||
1c9b71a7 EA |
1279 | ret = kvm_irqchip_remove_irqfd_notifier_gsi(kvm_state, notifier, |
1280 | dev->routes.gsi[n]); | |
d426d9fb CH |
1281 | assert(ret == 0); |
1282 | } | |
1283 | ||
320ce850 CH |
1284 | static int virtio_ccw_set_guest_notifier(VirtioCcwDevice *dev, int n, |
1285 | bool assign, bool with_irqfd) | |
1286 | { | |
f24a6840 PB |
1287 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); |
1288 | VirtQueue *vq = virtio_get_queue(vdev, n); | |
320ce850 | 1289 | EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); |
f24a6840 | 1290 | VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); |
320ce850 CH |
1291 | |
1292 | if (assign) { | |
1293 | int r = event_notifier_init(notifier, 0); | |
1294 | ||
1295 | if (r < 0) { | |
1296 | return r; | |
1297 | } | |
1298 | virtio_queue_set_guest_notifier_fd_handler(vq, true, with_irqfd); | |
d426d9fb CH |
1299 | if (with_irqfd) { |
1300 | r = virtio_ccw_add_irqfd(dev, n); | |
1301 | if (r) { | |
1302 | virtio_queue_set_guest_notifier_fd_handler(vq, false, | |
1303 | with_irqfd); | |
1304 | return r; | |
1305 | } | |
1306 | } | |
1307 | /* | |
1308 | * We do not support individual masking for channel devices, so we | |
1309 | * need to manually trigger any guest masking callbacks here. | |
320ce850 CH |
1310 | */ |
1311 | if (k->guest_notifier_mask) { | |
f24a6840 | 1312 | k->guest_notifier_mask(vdev, n, false); |
320ce850 CH |
1313 | } |
1314 | /* get lost events and re-inject */ | |
1315 | if (k->guest_notifier_pending && | |
f24a6840 | 1316 | k->guest_notifier_pending(vdev, n)) { |
320ce850 CH |
1317 | event_notifier_set(notifier); |
1318 | } | |
1319 | } else { | |
1320 | if (k->guest_notifier_mask) { | |
f24a6840 | 1321 | k->guest_notifier_mask(vdev, n, true); |
320ce850 | 1322 | } |
d426d9fb CH |
1323 | if (with_irqfd) { |
1324 | virtio_ccw_remove_irqfd(dev, n); | |
1325 | } | |
320ce850 CH |
1326 | virtio_queue_set_guest_notifier_fd_handler(vq, false, with_irqfd); |
1327 | event_notifier_cleanup(notifier); | |
1328 | } | |
1329 | return 0; | |
1330 | } | |
1331 | ||
1332 | static int virtio_ccw_set_guest_notifiers(DeviceState *d, int nvqs, | |
1333 | bool assigned) | |
1334 | { | |
1335 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
f24a6840 | 1336 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); |
d426d9fb | 1337 | bool with_irqfd = dev->sch->thinint_active && kvm_irqfds_enabled(); |
320ce850 CH |
1338 | int r, n; |
1339 | ||
d426d9fb CH |
1340 | if (with_irqfd && assigned) { |
1341 | /* irq routes need to be set up before assigning irqfds */ | |
1342 | r = virtio_ccw_setup_irqroutes(dev, nvqs); | |
1343 | if (r < 0) { | |
1344 | goto irqroute_error; | |
1345 | } | |
1346 | } | |
320ce850 CH |
1347 | for (n = 0; n < nvqs; n++) { |
1348 | if (!virtio_queue_get_num(vdev, n)) { | |
1349 | break; | |
1350 | } | |
d426d9fb | 1351 | r = virtio_ccw_set_guest_notifier(dev, n, assigned, with_irqfd); |
320ce850 CH |
1352 | if (r < 0) { |
1353 | goto assign_error; | |
1354 | } | |
1355 | } | |
d426d9fb CH |
1356 | if (with_irqfd && !assigned) { |
1357 | /* release irq routes after irqfds have been released */ | |
1358 | virtio_ccw_release_irqroutes(dev, nvqs); | |
1359 | } | |
320ce850 CH |
1360 | return 0; |
1361 | ||
1362 | assign_error: | |
1363 | while (--n >= 0) { | |
1364 | virtio_ccw_set_guest_notifier(dev, n, !assigned, false); | |
1365 | } | |
d426d9fb CH |
1366 | irqroute_error: |
1367 | if (with_irqfd && assigned) { | |
1368 | virtio_ccw_release_irqroutes(dev, nvqs); | |
1369 | } | |
320ce850 CH |
1370 | return r; |
1371 | } | |
1372 | ||
bcb2b582 JF |
1373 | static void virtio_ccw_save_queue(DeviceState *d, int n, QEMUFile *f) |
1374 | { | |
1375 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
1376 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); | |
1377 | ||
1378 | qemu_put_be16(f, virtio_queue_vector(vdev, n)); | |
1379 | } | |
1380 | ||
1381 | static int virtio_ccw_load_queue(DeviceState *d, int n, QEMUFile *f) | |
1382 | { | |
1383 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
1384 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); | |
1385 | uint16_t vector; | |
1386 | ||
1387 | qemu_get_be16s(f, &vector); | |
1388 | virtio_queue_set_vector(vdev, n , vector); | |
1389 | ||
1390 | return 0; | |
1391 | } | |
1392 | ||
1393 | static void virtio_ccw_save_config(DeviceState *d, QEMUFile *f) | |
1394 | { | |
1395 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
1396 | SubchDev *s = dev->sch; | |
2a72ea5f | 1397 | VirtIODevice *vdev = virtio_ccw_get_vdev(s); |
bcb2b582 JF |
1398 | |
1399 | subch_device_save(s, f); | |
1400 | if (dev->indicators != NULL) { | |
1401 | qemu_put_be32(f, dev->indicators->len); | |
1402 | qemu_put_be64(f, dev->indicators->addr); | |
1403 | } else { | |
1404 | qemu_put_be32(f, 0); | |
1405 | qemu_put_be64(f, 0UL); | |
1406 | } | |
1407 | if (dev->indicators2 != NULL) { | |
1408 | qemu_put_be32(f, dev->indicators2->len); | |
1409 | qemu_put_be64(f, dev->indicators2->addr); | |
1410 | } else { | |
1411 | qemu_put_be32(f, 0); | |
1412 | qemu_put_be64(f, 0UL); | |
1413 | } | |
1414 | if (dev->summary_indicator != NULL) { | |
1415 | qemu_put_be32(f, dev->summary_indicator->len); | |
1416 | qemu_put_be64(f, dev->summary_indicator->addr); | |
1417 | } else { | |
1418 | qemu_put_be32(f, 0); | |
1419 | qemu_put_be64(f, 0UL); | |
1420 | } | |
2a72ea5f | 1421 | qemu_put_be16(f, vdev->config_vector); |
bcb2b582 JF |
1422 | qemu_put_be64(f, dev->routes.adapter.ind_offset); |
1423 | qemu_put_byte(f, dev->thinint_isc); | |
213941d7 | 1424 | qemu_put_be32(f, dev->revision); |
bcb2b582 JF |
1425 | } |
1426 | ||
1427 | static int virtio_ccw_load_config(DeviceState *d, QEMUFile *f) | |
1428 | { | |
1429 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
1430 | SubchDev *s = dev->sch; | |
2a72ea5f | 1431 | VirtIODevice *vdev = virtio_ccw_get_vdev(s); |
bcb2b582 JF |
1432 | int len; |
1433 | ||
1434 | s->driver_data = dev; | |
1435 | subch_device_load(s, f); | |
1436 | len = qemu_get_be32(f); | |
1437 | if (len != 0) { | |
1438 | dev->indicators = get_indicator(qemu_get_be64(f), len); | |
1439 | } else { | |
1440 | qemu_get_be64(f); | |
1441 | dev->indicators = NULL; | |
1442 | } | |
1443 | len = qemu_get_be32(f); | |
1444 | if (len != 0) { | |
1445 | dev->indicators2 = get_indicator(qemu_get_be64(f), len); | |
1446 | } else { | |
1447 | qemu_get_be64(f); | |
1448 | dev->indicators2 = NULL; | |
1449 | } | |
1450 | len = qemu_get_be32(f); | |
1451 | if (len != 0) { | |
1452 | dev->summary_indicator = get_indicator(qemu_get_be64(f), len); | |
1453 | } else { | |
1454 | qemu_get_be64(f); | |
1455 | dev->summary_indicator = NULL; | |
1456 | } | |
2a72ea5f | 1457 | qemu_get_be16s(f, &vdev->config_vector); |
bcb2b582 JF |
1458 | dev->routes.adapter.ind_offset = qemu_get_be64(f); |
1459 | dev->thinint_isc = qemu_get_byte(f); | |
2af9170c | 1460 | dev->revision = qemu_get_be32(f); |
bcb2b582 JF |
1461 | if (s->thinint_active) { |
1462 | return css_register_io_adapter(CSS_IO_ADAPTER_VIRTIO, | |
1463 | dev->thinint_isc, true, false, | |
1464 | &dev->routes.adapter.adapter_id); | |
1465 | } | |
1466 | ||
1467 | return 0; | |
1468 | } | |
1469 | ||
fb846a09 | 1470 | /* This is called by virtio-bus just after the device is plugged. */ |
e8398045 | 1471 | static void virtio_ccw_device_plugged(DeviceState *d, Error **errp) |
fb846a09 CH |
1472 | { |
1473 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
10ceaa1e | 1474 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); |
fb846a09 | 1475 | SubchDev *sch = dev->sch; |
10ceaa1e JW |
1476 | int n = virtio_get_num_queues(vdev); |
1477 | ||
1478 | if (virtio_get_num_queues(vdev) > VIRTIO_CCW_QUEUE_MAX) { | |
1479 | error_setg(errp, "The nubmer of virtqueues %d " | |
1480 | "exceeds ccw limit %d", n, | |
1481 | VIRTIO_CCW_QUEUE_MAX); | |
1482 | return; | |
1483 | } | |
fb846a09 | 1484 | |
a499973f AJ |
1485 | if (!kvm_eventfds_enabled()) { |
1486 | dev->flags &= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD; | |
1487 | } | |
1488 | ||
fb846a09 CH |
1489 | sch->id.cu_model = virtio_bus_get_vdev_id(&dev->bus); |
1490 | ||
542571d5 CH |
1491 | if (dev->max_rev >= 1) { |
1492 | virtio_add_feature(&vdev->host_features, VIRTIO_F_VERSION_1); | |
1493 | } | |
1494 | ||
fb846a09 CH |
1495 | css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid, |
1496 | d->hotplugged, 1); | |
1497 | } | |
1498 | ||
11380b36 CH |
1499 | static void virtio_ccw_post_plugged(DeviceState *d, Error **errp) |
1500 | { | |
1501 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
1502 | VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); | |
1503 | ||
1504 | if (!virtio_host_has_feature(vdev, VIRTIO_F_VERSION_1)) { | |
1505 | /* A backend didn't support modern virtio. */ | |
1506 | dev->max_rev = 0; | |
1507 | } | |
1508 | } | |
1509 | ||
fb846a09 CH |
1510 | static void virtio_ccw_device_unplugged(DeviceState *d) |
1511 | { | |
1512 | VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); | |
1513 | ||
1514 | virtio_ccw_stop_ioeventfd(dev); | |
1515 | } | |
a5cf2bb4 CH |
1516 | /**************** Virtio-ccw Bus Device Descriptions *******************/ |
1517 | ||
a5cf2bb4 CH |
1518 | static Property virtio_ccw_net_properties[] = { |
1519 | DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id), | |
b4436a0b CH |
1520 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1521 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1522 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1523 | VIRTIO_CCW_MAX_REV), | |
a5cf2bb4 CH |
1524 | DEFINE_PROP_END_OF_LIST(), |
1525 | }; | |
1526 | ||
1527 | static void virtio_ccw_net_class_init(ObjectClass *klass, void *data) | |
1528 | { | |
1529 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1530 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1531 | ||
5e5ced38 | 1532 | k->realize = virtio_ccw_net_realize; |
89334c8b | 1533 | k->exit = virtio_ccw_exit; |
a5cf2bb4 CH |
1534 | dc->reset = virtio_ccw_reset; |
1535 | dc->props = virtio_ccw_net_properties; | |
cd20d616 | 1536 | set_bit(DEVICE_CATEGORY_NETWORK, dc->categories); |
a5cf2bb4 CH |
1537 | } |
1538 | ||
1539 | static const TypeInfo virtio_ccw_net = { | |
89334c8b | 1540 | .name = TYPE_VIRTIO_NET_CCW, |
a5cf2bb4 | 1541 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
89334c8b FK |
1542 | .instance_size = sizeof(VirtIONetCcw), |
1543 | .instance_init = virtio_ccw_net_instance_init, | |
a5cf2bb4 CH |
1544 | .class_init = virtio_ccw_net_class_init, |
1545 | }; | |
1546 | ||
1547 | static Property virtio_ccw_blk_properties[] = { | |
1548 | DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id), | |
b4436a0b CH |
1549 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1550 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1551 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1552 | VIRTIO_CCW_MAX_REV), | |
a5cf2bb4 CH |
1553 | DEFINE_PROP_END_OF_LIST(), |
1554 | }; | |
1555 | ||
1556 | static void virtio_ccw_blk_class_init(ObjectClass *klass, void *data) | |
1557 | { | |
1558 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1559 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1560 | ||
5e5ced38 | 1561 | k->realize = virtio_ccw_blk_realize; |
3400c455 | 1562 | k->exit = virtio_ccw_exit; |
a5cf2bb4 CH |
1563 | dc->reset = virtio_ccw_reset; |
1564 | dc->props = virtio_ccw_blk_properties; | |
cd20d616 | 1565 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
a5cf2bb4 CH |
1566 | } |
1567 | ||
1568 | static const TypeInfo virtio_ccw_blk = { | |
3400c455 | 1569 | .name = TYPE_VIRTIO_BLK_CCW, |
a5cf2bb4 | 1570 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
3400c455 FK |
1571 | .instance_size = sizeof(VirtIOBlkCcw), |
1572 | .instance_init = virtio_ccw_blk_instance_init, | |
a5cf2bb4 CH |
1573 | .class_init = virtio_ccw_blk_class_init, |
1574 | }; | |
1575 | ||
1576 | static Property virtio_ccw_serial_properties[] = { | |
1577 | DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id), | |
b4436a0b CH |
1578 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1579 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1580 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1581 | VIRTIO_CCW_MAX_REV), | |
a5cf2bb4 CH |
1582 | DEFINE_PROP_END_OF_LIST(), |
1583 | }; | |
1584 | ||
1585 | static void virtio_ccw_serial_class_init(ObjectClass *klass, void *data) | |
1586 | { | |
1587 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1588 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1589 | ||
5e5ced38 | 1590 | k->realize = virtio_ccw_serial_realize; |
6acf69cd | 1591 | k->exit = virtio_ccw_exit; |
a5cf2bb4 CH |
1592 | dc->reset = virtio_ccw_reset; |
1593 | dc->props = virtio_ccw_serial_properties; | |
cd20d616 | 1594 | set_bit(DEVICE_CATEGORY_INPUT, dc->categories); |
a5cf2bb4 CH |
1595 | } |
1596 | ||
1597 | static const TypeInfo virtio_ccw_serial = { | |
6acf69cd | 1598 | .name = TYPE_VIRTIO_SERIAL_CCW, |
a5cf2bb4 | 1599 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
6acf69cd FK |
1600 | .instance_size = sizeof(VirtioSerialCcw), |
1601 | .instance_init = virtio_ccw_serial_instance_init, | |
a5cf2bb4 CH |
1602 | .class_init = virtio_ccw_serial_class_init, |
1603 | }; | |
1604 | ||
1605 | static Property virtio_ccw_balloon_properties[] = { | |
1606 | DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id), | |
b4436a0b CH |
1607 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1608 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1609 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1610 | VIRTIO_CCW_MAX_REV), | |
a5cf2bb4 CH |
1611 | DEFINE_PROP_END_OF_LIST(), |
1612 | }; | |
1613 | ||
1614 | static void virtio_ccw_balloon_class_init(ObjectClass *klass, void *data) | |
1615 | { | |
1616 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1617 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1618 | ||
5e5ced38 | 1619 | k->realize = virtio_ccw_balloon_realize; |
30bff6a0 | 1620 | k->exit = virtio_ccw_exit; |
a5cf2bb4 CH |
1621 | dc->reset = virtio_ccw_reset; |
1622 | dc->props = virtio_ccw_balloon_properties; | |
cd20d616 | 1623 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); |
a5cf2bb4 CH |
1624 | } |
1625 | ||
1626 | static const TypeInfo virtio_ccw_balloon = { | |
30bff6a0 | 1627 | .name = TYPE_VIRTIO_BALLOON_CCW, |
a5cf2bb4 | 1628 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
30bff6a0 FK |
1629 | .instance_size = sizeof(VirtIOBalloonCcw), |
1630 | .instance_init = virtio_ccw_balloon_instance_init, | |
a5cf2bb4 CH |
1631 | .class_init = virtio_ccw_balloon_class_init, |
1632 | }; | |
1633 | ||
1634 | static Property virtio_ccw_scsi_properties[] = { | |
1635 | DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id), | |
b4436a0b CH |
1636 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1637 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1638 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1639 | VIRTIO_CCW_MAX_REV), | |
a5cf2bb4 CH |
1640 | DEFINE_PROP_END_OF_LIST(), |
1641 | }; | |
1642 | ||
1643 | static void virtio_ccw_scsi_class_init(ObjectClass *klass, void *data) | |
1644 | { | |
1645 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1646 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1647 | ||
5e5ced38 | 1648 | k->realize = virtio_ccw_scsi_realize; |
c908ea10 | 1649 | k->exit = virtio_ccw_exit; |
a5cf2bb4 CH |
1650 | dc->reset = virtio_ccw_reset; |
1651 | dc->props = virtio_ccw_scsi_properties; | |
cd20d616 | 1652 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
a5cf2bb4 CH |
1653 | } |
1654 | ||
1655 | static const TypeInfo virtio_ccw_scsi = { | |
c908ea10 | 1656 | .name = TYPE_VIRTIO_SCSI_CCW, |
a5cf2bb4 | 1657 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
c908ea10 FK |
1658 | .instance_size = sizeof(VirtIOSCSICcw), |
1659 | .instance_init = virtio_ccw_scsi_instance_init, | |
a5cf2bb4 CH |
1660 | .class_init = virtio_ccw_scsi_class_init, |
1661 | }; | |
1662 | ||
ccf6916c PB |
1663 | #ifdef CONFIG_VHOST_SCSI |
1664 | static Property vhost_ccw_scsi_properties[] = { | |
1665 | DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id), | |
542571d5 CH |
1666 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1667 | VIRTIO_CCW_MAX_REV), | |
ccf6916c PB |
1668 | DEFINE_PROP_END_OF_LIST(), |
1669 | }; | |
1670 | ||
1671 | static void vhost_ccw_scsi_class_init(ObjectClass *klass, void *data) | |
1672 | { | |
1673 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1674 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1675 | ||
5e5ced38 | 1676 | k->realize = vhost_ccw_scsi_realize; |
ccf6916c PB |
1677 | k->exit = virtio_ccw_exit; |
1678 | dc->reset = virtio_ccw_reset; | |
1679 | dc->props = vhost_ccw_scsi_properties; | |
cd20d616 | 1680 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
ccf6916c PB |
1681 | } |
1682 | ||
1683 | static const TypeInfo vhost_ccw_scsi = { | |
1684 | .name = TYPE_VHOST_SCSI_CCW, | |
1685 | .parent = TYPE_VIRTIO_CCW_DEVICE, | |
4b7757ba | 1686 | .instance_size = sizeof(VHostSCSICcw), |
ccf6916c PB |
1687 | .instance_init = vhost_ccw_scsi_instance_init, |
1688 | .class_init = vhost_ccw_scsi_class_init, | |
1689 | }; | |
1690 | #endif | |
1691 | ||
2db26d4c | 1692 | static void virtio_ccw_rng_instance_init(Object *obj) |
2362ecc5 | 1693 | { |
2db26d4c | 1694 | VirtIORNGCcw *dev = VIRTIO_RNG_CCW(obj); |
c8075caf GA |
1695 | |
1696 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
1697 | TYPE_VIRTIO_RNG); | |
cbd5ac69 PB |
1698 | object_property_add_alias(obj, "rng", OBJECT(&dev->vdev), |
1699 | "rng", &error_abort); | |
2362ecc5 CH |
1700 | } |
1701 | ||
1702 | static Property virtio_ccw_rng_properties[] = { | |
1703 | DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id), | |
b4436a0b CH |
1704 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, |
1705 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1706 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1707 | VIRTIO_CCW_MAX_REV), | |
2362ecc5 CH |
1708 | DEFINE_PROP_END_OF_LIST(), |
1709 | }; | |
1710 | ||
1711 | static void virtio_ccw_rng_class_init(ObjectClass *klass, void *data) | |
1712 | { | |
1713 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1714 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1715 | ||
5e5ced38 | 1716 | k->realize = virtio_ccw_rng_realize; |
2db26d4c | 1717 | k->exit = virtio_ccw_exit; |
2362ecc5 CH |
1718 | dc->reset = virtio_ccw_reset; |
1719 | dc->props = virtio_ccw_rng_properties; | |
cd20d616 | 1720 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); |
2362ecc5 CH |
1721 | } |
1722 | ||
1723 | static const TypeInfo virtio_ccw_rng = { | |
2db26d4c | 1724 | .name = TYPE_VIRTIO_RNG_CCW, |
2362ecc5 | 1725 | .parent = TYPE_VIRTIO_CCW_DEVICE, |
2db26d4c FK |
1726 | .instance_size = sizeof(VirtIORNGCcw), |
1727 | .instance_init = virtio_ccw_rng_instance_init, | |
2362ecc5 CH |
1728 | .class_init = virtio_ccw_rng_class_init, |
1729 | }; | |
1730 | ||
5e5ced38 | 1731 | static void virtio_ccw_busdev_realize(DeviceState *dev, Error **errp) |
a5cf2bb4 CH |
1732 | { |
1733 | VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev; | |
a5cf2bb4 | 1734 | |
1bf4d7aa | 1735 | virtio_ccw_bus_new(&_dev->bus, sizeof(_dev->bus), _dev); |
1fa75523 | 1736 | virtio_ccw_device_realize(_dev, errp); |
a5cf2bb4 CH |
1737 | } |
1738 | ||
1739 | static int virtio_ccw_busdev_exit(DeviceState *dev) | |
1740 | { | |
1741 | VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev; | |
1742 | VirtIOCCWDeviceClass *_info = VIRTIO_CCW_DEVICE_GET_CLASS(dev); | |
1743 | ||
1744 | return _info->exit(_dev); | |
1745 | } | |
1746 | ||
277bc95e IM |
1747 | static void virtio_ccw_busdev_unplug(HotplugHandler *hotplug_dev, |
1748 | DeviceState *dev, Error **errp) | |
a5cf2bb4 CH |
1749 | { |
1750 | VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev; | |
1751 | SubchDev *sch = _dev->sch; | |
1752 | ||
0b81c1ef PB |
1753 | virtio_ccw_stop_ioeventfd(_dev); |
1754 | ||
a5cf2bb4 CH |
1755 | /* |
1756 | * We should arrive here only for device_del, since we don't support | |
1757 | * direct hot(un)plug of channels, but only through virtio. | |
1758 | */ | |
1759 | assert(sch != NULL); | |
1760 | /* Subchannel is now disabled and no longer valid. */ | |
1761 | sch->curr_status.pmcw.flags &= ~(PMCW_FLAGS_MASK_ENA | | |
1762 | PMCW_FLAGS_MASK_DNV); | |
1763 | ||
1764 | css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid, 1, 0); | |
1765 | ||
02a5c4c9 | 1766 | object_unparent(OBJECT(dev)); |
a5cf2bb4 CH |
1767 | } |
1768 | ||
1769 | static void virtio_ccw_device_class_init(ObjectClass *klass, void *data) | |
1770 | { | |
1771 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1772 | ||
5e5ced38 | 1773 | dc->realize = virtio_ccw_busdev_realize; |
a5cf2bb4 | 1774 | dc->exit = virtio_ccw_busdev_exit; |
a5cf2bb4 | 1775 | dc->bus_type = TYPE_VIRTUAL_CSS_BUS; |
a5cf2bb4 CH |
1776 | } |
1777 | ||
1778 | static const TypeInfo virtio_ccw_device_info = { | |
1779 | .name = TYPE_VIRTIO_CCW_DEVICE, | |
1780 | .parent = TYPE_DEVICE, | |
1781 | .instance_size = sizeof(VirtioCcwDevice), | |
1782 | .class_init = virtio_ccw_device_class_init, | |
1783 | .class_size = sizeof(VirtIOCCWDeviceClass), | |
1784 | .abstract = true, | |
1785 | }; | |
1786 | ||
1787 | /***************** Virtual-css Bus Bridge Device ********************/ | |
1788 | /* Only required to have the virtio bus as child in the system bus */ | |
1789 | ||
1790 | static int virtual_css_bridge_init(SysBusDevice *dev) | |
1791 | { | |
1792 | /* nothing */ | |
1793 | return 0; | |
1794 | } | |
1795 | ||
1796 | static void virtual_css_bridge_class_init(ObjectClass *klass, void *data) | |
1797 | { | |
a5cf2bb4 | 1798 | SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); |
277bc95e | 1799 | HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(klass); |
cd20d616 | 1800 | DeviceClass *dc = DEVICE_CLASS(klass); |
a5cf2bb4 CH |
1801 | |
1802 | k->init = virtual_css_bridge_init; | |
277bc95e | 1803 | hc->unplug = virtio_ccw_busdev_unplug; |
cd20d616 | 1804 | set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); |
a5cf2bb4 CH |
1805 | } |
1806 | ||
1807 | static const TypeInfo virtual_css_bridge_info = { | |
1808 | .name = "virtual-css-bridge", | |
1809 | .parent = TYPE_SYS_BUS_DEVICE, | |
1810 | .instance_size = sizeof(SysBusDevice), | |
1811 | .class_init = virtual_css_bridge_class_init, | |
277bc95e IM |
1812 | .interfaces = (InterfaceInfo[]) { |
1813 | { TYPE_HOTPLUG_HANDLER }, | |
1814 | { } | |
1815 | } | |
a5cf2bb4 CH |
1816 | }; |
1817 | ||
1818 | /* virtio-ccw-bus */ | |
1819 | ||
1bf4d7aa AF |
1820 | static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size, |
1821 | VirtioCcwDevice *dev) | |
a5cf2bb4 CH |
1822 | { |
1823 | DeviceState *qdev = DEVICE(dev); | |
f4dd69aa | 1824 | char virtio_bus_name[] = "virtio-bus"; |
a5cf2bb4 | 1825 | |
fb17dfe0 AF |
1826 | qbus_create_inplace(bus, bus_size, TYPE_VIRTIO_CCW_BUS, |
1827 | qdev, virtio_bus_name); | |
a5cf2bb4 CH |
1828 | } |
1829 | ||
1830 | static void virtio_ccw_bus_class_init(ObjectClass *klass, void *data) | |
1831 | { | |
1832 | VirtioBusClass *k = VIRTIO_BUS_CLASS(klass); | |
1833 | BusClass *bus_class = BUS_CLASS(klass); | |
1834 | ||
1835 | bus_class->max_dev = 1; | |
1836 | k->notify = virtio_ccw_notify; | |
b4436a0b | 1837 | k->vmstate_change = virtio_ccw_vmstate_change; |
320ce850 CH |
1838 | k->query_guest_notifiers = virtio_ccw_query_guest_notifiers; |
1839 | k->set_host_notifier = virtio_ccw_set_host_notifier; | |
1840 | k->set_guest_notifiers = virtio_ccw_set_guest_notifiers; | |
bcb2b582 JF |
1841 | k->save_queue = virtio_ccw_save_queue; |
1842 | k->load_queue = virtio_ccw_load_queue; | |
1843 | k->save_config = virtio_ccw_save_config; | |
1844 | k->load_config = virtio_ccw_load_config; | |
fb846a09 | 1845 | k->device_plugged = virtio_ccw_device_plugged; |
11380b36 | 1846 | k->post_plugged = virtio_ccw_post_plugged; |
fb846a09 | 1847 | k->device_unplugged = virtio_ccw_device_unplugged; |
a5cf2bb4 CH |
1848 | } |
1849 | ||
1850 | static const TypeInfo virtio_ccw_bus_info = { | |
1851 | .name = TYPE_VIRTIO_CCW_BUS, | |
1852 | .parent = TYPE_VIRTIO_BUS, | |
1853 | .instance_size = sizeof(VirtioCcwBusState), | |
1854 | .class_init = virtio_ccw_bus_class_init, | |
1855 | }; | |
1856 | ||
de6a9218 PM |
1857 | #ifdef CONFIG_VIRTFS |
1858 | static Property virtio_ccw_9p_properties[] = { | |
1859 | DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id), | |
1860 | DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, | |
1861 | VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), | |
542571d5 CH |
1862 | DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, |
1863 | VIRTIO_CCW_MAX_REV), | |
de6a9218 PM |
1864 | DEFINE_PROP_END_OF_LIST(), |
1865 | }; | |
1866 | ||
1867 | static void virtio_ccw_9p_realize(VirtioCcwDevice *ccw_dev, Error **errp) | |
1868 | { | |
1869 | V9fsCCWState *dev = VIRTIO_9P_CCW(ccw_dev); | |
1870 | DeviceState *vdev = DEVICE(&dev->vdev); | |
1871 | Error *err = NULL; | |
1872 | ||
1873 | qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); | |
1874 | object_property_set_bool(OBJECT(vdev), true, "realized", &err); | |
1875 | if (err) { | |
1876 | error_propagate(errp, err); | |
1877 | } | |
1878 | } | |
1879 | ||
1880 | static void virtio_ccw_9p_class_init(ObjectClass *klass, void *data) | |
1881 | { | |
1882 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1883 | VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); | |
1884 | ||
1885 | k->exit = virtio_ccw_exit; | |
1886 | k->realize = virtio_ccw_9p_realize; | |
1887 | dc->reset = virtio_ccw_reset; | |
1888 | dc->props = virtio_ccw_9p_properties; | |
1889 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); | |
1890 | } | |
1891 | ||
1892 | static void virtio_ccw_9p_instance_init(Object *obj) | |
1893 | { | |
1894 | V9fsCCWState *dev = VIRTIO_9P_CCW(obj); | |
1895 | ||
1896 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
1897 | TYPE_VIRTIO_9P); | |
1898 | } | |
1899 | ||
1900 | static const TypeInfo virtio_ccw_9p_info = { | |
1901 | .name = TYPE_VIRTIO_9P_CCW, | |
1902 | .parent = TYPE_VIRTIO_CCW_DEVICE, | |
1903 | .instance_size = sizeof(V9fsCCWState), | |
1904 | .instance_init = virtio_ccw_9p_instance_init, | |
1905 | .class_init = virtio_ccw_9p_class_init, | |
1906 | }; | |
1907 | #endif | |
1908 | ||
a5cf2bb4 CH |
1909 | static void virtio_ccw_register(void) |
1910 | { | |
1911 | type_register_static(&virtio_ccw_bus_info); | |
1912 | type_register_static(&virtual_css_bus_info); | |
1913 | type_register_static(&virtio_ccw_device_info); | |
1914 | type_register_static(&virtio_ccw_serial); | |
1915 | type_register_static(&virtio_ccw_blk); | |
1916 | type_register_static(&virtio_ccw_net); | |
1917 | type_register_static(&virtio_ccw_balloon); | |
1918 | type_register_static(&virtio_ccw_scsi); | |
b702d2ae | 1919 | #ifdef CONFIG_VHOST_SCSI |
ccf6916c | 1920 | type_register_static(&vhost_ccw_scsi); |
b702d2ae | 1921 | #endif |
2362ecc5 | 1922 | type_register_static(&virtio_ccw_rng); |
a5cf2bb4 | 1923 | type_register_static(&virtual_css_bridge_info); |
de6a9218 PM |
1924 | #ifdef CONFIG_VIRTFS |
1925 | type_register_static(&virtio_ccw_9p_info); | |
1926 | #endif | |
a5cf2bb4 CH |
1927 | } |
1928 | ||
1929 | type_init(virtio_ccw_register) |