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s390x/css: unrestrict cssids
[qemu/ar7.git] / hw / s390x / virtio-ccw.c
blob3dd902a66454c7f986d2d3621f3930b43f1b80de
1 /*
2 * virtio ccw target implementation
3 *
4 * Copyright 2012,2015 IBM Corp.
5 * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
6 * Pierre Morel <pmorel@linux.vnet.ibm.com>
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
13 #include "qemu/osdep.h"
14 #include "qapi/error.h"
15 #include "hw/hw.h"
16 #include "sysemu/block-backend.h"
17 #include "sysemu/blockdev.h"
18 #include "sysemu/sysemu.h"
19 #include "sysemu/kvm.h"
20 #include "net/net.h"
21 #include "hw/virtio/virtio.h"
22 #include "hw/virtio/virtio-serial.h"
23 #include "hw/virtio/virtio-net.h"
24 #include "hw/sysbus.h"
25 #include "qemu/bitops.h"
26 #include "qemu/error-report.h"
27 #include "hw/virtio/virtio-access.h"
28 #include "hw/virtio/virtio-bus.h"
29 #include "hw/s390x/adapter.h"
30 #include "hw/s390x/s390_flic.h"
31
32 #include "hw/s390x/ioinst.h"
33 #include "hw/s390x/css.h"
34 #include "virtio-ccw.h"
35 #include "trace.h"
36 #include "hw/s390x/css-bridge.h"
37 #include "hw/s390x/s390-virtio-ccw.h"
38
39 #define NR_CLASSIC_INDICATOR_BITS 64
40
41 static int virtio_ccw_dev_post_load(void *opaque, int version_id)
42 {
43 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(opaque);
44 CcwDevice *ccw_dev = CCW_DEVICE(dev);
45 CCWDeviceClass *ck = CCW_DEVICE_GET_CLASS(ccw_dev);
46
47 ccw_dev->sch->driver_data = dev;
48 if (ccw_dev->sch->thinint_active) {
49 dev->routes.adapter.adapter_id = css_get_adapter_id(
50 CSS_IO_ADAPTER_VIRTIO,
51 dev->thinint_isc);
52 }
53 /* Re-fill subch_id after loading the subchannel states.*/
54 if (ck->refill_ids) {
55 ck->refill_ids(ccw_dev);
56 }
57 return 0;
58 }
59
60 typedef struct VirtioCcwDeviceTmp {
61 VirtioCcwDevice *parent;
62 uint16_t config_vector;
63 } VirtioCcwDeviceTmp;
64
65 static int virtio_ccw_dev_tmp_pre_save(void *opaque)
66 {
67 VirtioCcwDeviceTmp *tmp = opaque;
68 VirtioCcwDevice *dev = tmp->parent;
69 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
70
71 tmp->config_vector = vdev->config_vector;
72
73 return 0;
74 }
75
76 static int virtio_ccw_dev_tmp_post_load(void *opaque, int version_id)
77 {
78 VirtioCcwDeviceTmp *tmp = opaque;
79 VirtioCcwDevice *dev = tmp->parent;
80 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
81
82 vdev->config_vector = tmp->config_vector;
83 return 0;
84 }
85
86 const VMStateDescription vmstate_virtio_ccw_dev_tmp = {
87 .name = "s390_virtio_ccw_dev_tmp",
88 .pre_save = virtio_ccw_dev_tmp_pre_save,
89 .post_load = virtio_ccw_dev_tmp_post_load,
90 .fields = (VMStateField[]) {
91 VMSTATE_UINT16(config_vector, VirtioCcwDeviceTmp),
92 VMSTATE_END_OF_LIST()
93 }
94 };
95
96 const VMStateDescription vmstate_virtio_ccw_dev = {
97 .name = "s390_virtio_ccw_dev",
98 .version_id = 1,
99 .minimum_version_id = 1,
100 .post_load = virtio_ccw_dev_post_load,
101 .fields = (VMStateField[]) {
102 VMSTATE_CCW_DEVICE(parent_obj, VirtioCcwDevice),
103 VMSTATE_PTR_TO_IND_ADDR(indicators, VirtioCcwDevice),
104 VMSTATE_PTR_TO_IND_ADDR(indicators2, VirtioCcwDevice),
105 VMSTATE_PTR_TO_IND_ADDR(summary_indicator, VirtioCcwDevice),
106 /*
107 * Ugly hack because VirtIODevice does not migrate itself.
108 * This also makes legacy via vmstate_save_state possible.
109 */
110 VMSTATE_WITH_TMP(VirtioCcwDevice, VirtioCcwDeviceTmp,
111 vmstate_virtio_ccw_dev_tmp),
112 VMSTATE_STRUCT(routes, VirtioCcwDevice, 1, vmstate_adapter_routes,
113 AdapterRoutes),
114 VMSTATE_UINT8(thinint_isc, VirtioCcwDevice),
115 VMSTATE_INT32(revision, VirtioCcwDevice),
116 VMSTATE_END_OF_LIST()
117 }
118 };
119
120 static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size,
121 VirtioCcwDevice *dev);
122
123 VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch)
124 {
125 VirtIODevice *vdev = NULL;
126 VirtioCcwDevice *dev = sch->driver_data;
127
128 if (dev) {
129 vdev = virtio_bus_get_device(&dev->bus);
130 }
131 return vdev;
132 }
133
134 static void virtio_ccw_start_ioeventfd(VirtioCcwDevice *dev)
135 {
136 virtio_bus_start_ioeventfd(&dev->bus);
137 }
138
139 static void virtio_ccw_stop_ioeventfd(VirtioCcwDevice *dev)
140 {
141 virtio_bus_stop_ioeventfd(&dev->bus);
142 }
143
144 static bool virtio_ccw_ioeventfd_enabled(DeviceState *d)
145 {
146 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
147
148 return (dev->flags & VIRTIO_CCW_FLAG_USE_IOEVENTFD) != 0;
149 }
150
151 static int virtio_ccw_ioeventfd_assign(DeviceState *d, EventNotifier *notifier,
152 int n, bool assign)
153 {
154 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
155 CcwDevice *ccw_dev = CCW_DEVICE(dev);
156 SubchDev *sch = ccw_dev->sch;
157 uint32_t sch_id = (css_build_subchannel_id(sch) << 16) | sch->schid;
158
159 return s390_assign_subch_ioeventfd(notifier, sch_id, n, assign);
160 }
161
162 /* Communication blocks used by several channel commands. */
163 typedef struct VqInfoBlockLegacy {
164 uint64_t queue;
165 uint32_t align;
166 uint16_t index;
167 uint16_t num;
168 } QEMU_PACKED VqInfoBlockLegacy;
169
170 typedef struct VqInfoBlock {
171 uint64_t desc;
172 uint32_t res0;
173 uint16_t index;
174 uint16_t num;
175 uint64_t avail;
176 uint64_t used;
177 } QEMU_PACKED VqInfoBlock;
178
179 typedef struct VqConfigBlock {
180 uint16_t index;
181 uint16_t num_max;
182 } QEMU_PACKED VqConfigBlock;
183
184 typedef struct VirtioFeatDesc {
185 uint32_t features;
186 uint8_t index;
187 } QEMU_PACKED VirtioFeatDesc;
188
189 typedef struct VirtioThinintInfo {
190 hwaddr summary_indicator;
191 hwaddr device_indicator;
192 uint64_t ind_bit;
193 uint8_t isc;
194 } QEMU_PACKED VirtioThinintInfo;
195
196 typedef struct VirtioRevInfo {
197 uint16_t revision;
198 uint16_t length;
199 uint8_t data[0];
200 } QEMU_PACKED VirtioRevInfo;
201
202 /* Specify where the virtqueues for the subchannel are in guest memory. */
203 static int virtio_ccw_set_vqs(SubchDev *sch, VqInfoBlock *info,
204 VqInfoBlockLegacy *linfo)
205 {
206 VirtIODevice *vdev = virtio_ccw_get_vdev(sch);
207 uint16_t index = info ? info->index : linfo->index;
208 uint16_t num = info ? info->num : linfo->num;
209 uint64_t desc = info ? info->desc : linfo->queue;
210
211 if (index >= VIRTIO_QUEUE_MAX) {
212 return -EINVAL;
213 }
214
215 /* Current code in virtio.c relies on 4K alignment. */
216 if (linfo && desc && (linfo->align != 4096)) {
217 return -EINVAL;
218 }
219
220 if (!vdev) {
221 return -EINVAL;
222 }
223
224 if (info) {
225 virtio_queue_set_rings(vdev, index, desc, info->avail, info->used);
226 } else {
227 virtio_queue_set_addr(vdev, index, desc);
228 }
229 if (!desc) {
230 virtio_queue_set_vector(vdev, index, VIRTIO_NO_VECTOR);
231 } else {
232 if (info) {
233 /* virtio-1 allows changing the ring size. */
234 if (virtio_queue_get_max_num(vdev, index) < num) {
235 /* Fail if we exceed the maximum number. */
236 return -EINVAL;
237 }
238 virtio_queue_set_num(vdev, index, num);
239 } else if (virtio_queue_get_num(vdev, index) > num) {
240 /* Fail if we don't have a big enough queue. */
241 return -EINVAL;
242 }
243 /* We ignore possible increased num for legacy for compatibility. */
244 virtio_queue_set_vector(vdev, index, index);
245 }
246 /* tell notify handler in case of config change */
247 vdev->config_vector = VIRTIO_QUEUE_MAX;
248 return 0;
249 }
250
251 static void virtio_ccw_reset_virtio(VirtioCcwDevice *dev, VirtIODevice *vdev)
252 {
253 CcwDevice *ccw_dev = CCW_DEVICE(dev);
254
255 virtio_ccw_stop_ioeventfd(dev);
256 virtio_reset(vdev);
257 if (dev->indicators) {
258 release_indicator(&dev->routes.adapter, dev->indicators);
259 dev->indicators = NULL;
260 }
261 if (dev->indicators2) {
262 release_indicator(&dev->routes.adapter, dev->indicators2);
263 dev->indicators2 = NULL;
264 }
265 if (dev->summary_indicator) {
266 release_indicator(&dev->routes.adapter, dev->summary_indicator);
267 dev->summary_indicator = NULL;
268 }
269 ccw_dev->sch->thinint_active = false;
270 }
271
272 static int virtio_ccw_handle_set_vq(SubchDev *sch, CCW1 ccw, bool check_len,
273 bool is_legacy)
274 {
275 int ret;
276 VqInfoBlock info;
277 VqInfoBlockLegacy linfo;
278 size_t info_len = is_legacy ? sizeof(linfo) : sizeof(info);
279
280 if (check_len) {
281 if (ccw.count != info_len) {
282 return -EINVAL;
283 }
284 } else if (ccw.count < info_len) {
285 /* Can't execute command. */
286 return -EINVAL;
287 }
288 if (!ccw.cda) {
289 return -EFAULT;
290 }
291 if (is_legacy) {
292 ccw_dstream_read(&sch->cds, linfo);
293 be64_to_cpus(&linfo.queue);
294 be32_to_cpus(&linfo.align);
295 be16_to_cpus(&linfo.index);
296 be16_to_cpus(&linfo.num);
297 ret = virtio_ccw_set_vqs(sch, NULL, &linfo);
298 } else {
299 ccw_dstream_read(&sch->cds, info);
300 be64_to_cpus(&info.desc);
301 be16_to_cpus(&info.index);
302 be16_to_cpus(&info.num);
303 be64_to_cpus(&info.avail);
304 be64_to_cpus(&info.used);
305 ret = virtio_ccw_set_vqs(sch, &info, NULL);
306 }
307 sch->curr_status.scsw.count = 0;
308 return ret;
309 }
310
311 static int virtio_ccw_cb(SubchDev *sch, CCW1 ccw)
312 {
313 int ret;
314 VirtioRevInfo revinfo;
315 uint8_t status;
316 VirtioFeatDesc features;
317 hwaddr indicators;
318 VqConfigBlock vq_config;
319 VirtioCcwDevice *dev = sch->driver_data;
320 VirtIODevice *vdev = virtio_ccw_get_vdev(sch);
321 bool check_len;
322 int len;
323 VirtioThinintInfo thinint;
324
325 if (!dev) {
326 return -EINVAL;
327 }
328
329 trace_virtio_ccw_interpret_ccw(sch->cssid, sch->ssid, sch->schid,
330 ccw.cmd_code);
331 check_len = !((ccw.flags & CCW_FLAG_SLI) && !(ccw.flags & CCW_FLAG_DC));
332
333 if (dev->force_revision_1 && dev->revision < 0 &&
334 ccw.cmd_code != CCW_CMD_SET_VIRTIO_REV) {
335 /*
336 * virtio-1 drivers must start with negotiating to a revision >= 1,
337 * so post a command reject for all other commands
338 */
339 return -ENOSYS;
340 }
341
342 /* Look at the command. */
343 switch (ccw.cmd_code) {
344 case CCW_CMD_SET_VQ:
345 ret = virtio_ccw_handle_set_vq(sch, ccw, check_len, dev->revision < 1);
346 break;
347 case CCW_CMD_VDEV_RESET:
348 virtio_ccw_reset_virtio(dev, vdev);
349 ret = 0;
350 break;
351 case CCW_CMD_READ_FEAT:
352 if (check_len) {
353 if (ccw.count != sizeof(features)) {
354 ret = -EINVAL;
355 break;
356 }
357 } else if (ccw.count < sizeof(features)) {
358 /* Can't execute command. */
359 ret = -EINVAL;
360 break;
361 }
362 if (!ccw.cda) {
363 ret = -EFAULT;
364 } else {
365 VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev);
366
367 ccw_dstream_advance(&sch->cds, sizeof(features.features));
368 ccw_dstream_read(&sch->cds, features.index);
369 if (features.index == 0) {
370 if (dev->revision >= 1) {
371 /* Don't offer legacy features for modern devices. */
372 features.features = (uint32_t)
373 (vdev->host_features & ~vdc->legacy_features);
374 } else {
375 features.features = (uint32_t)vdev->host_features;
376 }
377 } else if ((features.index == 1) && (dev->revision >= 1)) {
378 /*
379 * Only offer feature bits beyond 31 if the guest has
380 * negotiated at least revision 1.
381 */
382 features.features = (uint32_t)(vdev->host_features >> 32);
383 } else {
384 /* Return zeroes if the guest supports more feature bits. */
385 features.features = 0;
386 }
387 ccw_dstream_rewind(&sch->cds);
388 cpu_to_le32s(&features.features);
389 ccw_dstream_write(&sch->cds, features.features);
390 sch->curr_status.scsw.count = ccw.count - sizeof(features);
391 ret = 0;
392 }
393 break;
394 case CCW_CMD_WRITE_FEAT:
395 if (check_len) {
396 if (ccw.count != sizeof(features)) {
397 ret = -EINVAL;
398 break;
399 }
400 } else if (ccw.count < sizeof(features)) {
401 /* Can't execute command. */
402 ret = -EINVAL;
403 break;
404 }
405 if (!ccw.cda) {
406 ret = -EFAULT;
407 } else {
408 ccw_dstream_read(&sch->cds, features);
409 le32_to_cpus(&features.features);
410 if (features.index == 0) {
411 virtio_set_features(vdev,
412 (vdev->guest_features & 0xffffffff00000000ULL) |
413 features.features);
414 } else if ((features.index == 1) && (dev->revision >= 1)) {
415 /*
416 * If the guest did not negotiate at least revision 1,
417 * we did not offer it any feature bits beyond 31. Such a
418 * guest passing us any bit here is therefore buggy.
419 */
420 virtio_set_features(vdev,
421 (vdev->guest_features & 0x00000000ffffffffULL) |
422 ((uint64_t)features.features << 32));
423 } else {
424 /*
425 * If the guest supports more feature bits, assert that it
426 * passes us zeroes for those we don't support.
427 */
428 if (features.features) {
429 fprintf(stderr, "Guest bug: features[%i]=%x (expected 0)\n",
430 features.index, features.features);
431 /* XXX: do a unit check here? */
432 }
433 }
434 sch->curr_status.scsw.count = ccw.count - sizeof(features);
435 ret = 0;
436 }
437 break;
438 case CCW_CMD_READ_CONF:
439 if (check_len) {
440 if (ccw.count > vdev->config_len) {
441 ret = -EINVAL;
442 break;
443 }
444 }
445 len = MIN(ccw.count, vdev->config_len);
446 if (!ccw.cda) {
447 ret = -EFAULT;
448 } else {
449 virtio_bus_get_vdev_config(&dev->bus, vdev->config);
450 ccw_dstream_write_buf(&sch->cds, vdev->config, len);
451 sch->curr_status.scsw.count = ccw.count - len;
452 ret = 0;
453 }
454 break;
455 case CCW_CMD_WRITE_CONF:
456 if (check_len) {
457 if (ccw.count > vdev->config_len) {
458 ret = -EINVAL;
459 break;
460 }
461 }
462 len = MIN(ccw.count, vdev->config_len);
463 if (!ccw.cda) {
464 ret = -EFAULT;
465 } else {
466 ret = ccw_dstream_read_buf(&sch->cds, vdev->config, len);
467 if (!ret) {
468 virtio_bus_set_vdev_config(&dev->bus, vdev->config);
469 sch->curr_status.scsw.count = ccw.count - len;
470 }
471 }
472 break;
473 case CCW_CMD_READ_STATUS:
474 if (check_len) {
475 if (ccw.count != sizeof(status)) {
476 ret = -EINVAL;
477 break;
478 }
479 } else if (ccw.count < sizeof(status)) {
480 /* Can't execute command. */
481 ret = -EINVAL;
482 break;
483 }
484 if (!ccw.cda) {
485 ret = -EFAULT;
486 } else {
487 address_space_stb(&address_space_memory, ccw.cda, vdev->status,
488 MEMTXATTRS_UNSPECIFIED, NULL);
489 sch->curr_status.scsw.count = ccw.count - sizeof(vdev->status);;
490 ret = 0;
491 }
492 break;
493 case CCW_CMD_WRITE_STATUS:
494 if (check_len) {
495 if (ccw.count != sizeof(status)) {
496 ret = -EINVAL;
497 break;
498 }
499 } else if (ccw.count < sizeof(status)) {
500 /* Can't execute command. */
501 ret = -EINVAL;
502 break;
503 }
504 if (!ccw.cda) {
505 ret = -EFAULT;
506 } else {
507 ccw_dstream_read(&sch->cds, status);
508 if (!(status & VIRTIO_CONFIG_S_DRIVER_OK)) {
509 virtio_ccw_stop_ioeventfd(dev);
510 }
511 if (virtio_set_status(vdev, status) == 0) {
512 if (vdev->status == 0) {
513 virtio_ccw_reset_virtio(dev, vdev);
514 }
515 if (status & VIRTIO_CONFIG_S_DRIVER_OK) {
516 virtio_ccw_start_ioeventfd(dev);
517 }
518 sch->curr_status.scsw.count = ccw.count - sizeof(status);
519 ret = 0;
520 } else {
521 /* Trigger a command reject. */
522 ret = -ENOSYS;
523 }
524 }
525 break;
526 case CCW_CMD_SET_IND:
527 if (check_len) {
528 if (ccw.count != sizeof(indicators)) {
529 ret = -EINVAL;
530 break;
531 }
532 } else if (ccw.count < sizeof(indicators)) {
533 /* Can't execute command. */
534 ret = -EINVAL;
535 break;
536 }
537 if (sch->thinint_active) {
538 /* Trigger a command reject. */
539 ret = -ENOSYS;
540 break;
541 }
542 if (virtio_get_num_queues(vdev) > NR_CLASSIC_INDICATOR_BITS) {
543 /* More queues than indicator bits --> trigger a reject */
544 ret = -ENOSYS;
545 break;
546 }
547 if (!ccw.cda) {
548 ret = -EFAULT;
549 } else {
550 ccw_dstream_read(&sch->cds, indicators);
551 be64_to_cpus(&indicators);
552 dev->indicators = get_indicator(indicators, sizeof(uint64_t));
553 sch->curr_status.scsw.count = ccw.count - sizeof(indicators);
554 ret = 0;
555 }
556 break;
557 case CCW_CMD_SET_CONF_IND:
558 if (check_len) {
559 if (ccw.count != sizeof(indicators)) {
560 ret = -EINVAL;
561 break;
562 }
563 } else if (ccw.count < sizeof(indicators)) {
564 /* Can't execute command. */
565 ret = -EINVAL;
566 break;
567 }
568 if (!ccw.cda) {
569 ret = -EFAULT;
570 } else {
571 ccw_dstream_read(&sch->cds, indicators);
572 be64_to_cpus(&indicators);
573 dev->indicators2 = get_indicator(indicators, sizeof(uint64_t));
574 sch->curr_status.scsw.count = ccw.count - sizeof(indicators);
575 ret = 0;
576 }
577 break;
578 case CCW_CMD_READ_VQ_CONF:
579 if (check_len) {
580 if (ccw.count != sizeof(vq_config)) {
581 ret = -EINVAL;
582 break;
583 }
584 } else if (ccw.count < sizeof(vq_config)) {
585 /* Can't execute command. */
586 ret = -EINVAL;
587 break;
588 }
589 if (!ccw.cda) {
590 ret = -EFAULT;
591 } else {
592 ccw_dstream_read(&sch->cds, vq_config.index);
593 be16_to_cpus(&vq_config.index);
594 if (vq_config.index >= VIRTIO_QUEUE_MAX) {
595 ret = -EINVAL;
596 break;
597 }
598 vq_config.num_max = virtio_queue_get_num(vdev,
599 vq_config.index);
600 cpu_to_be16s(&vq_config.num_max);
601 ccw_dstream_write(&sch->cds, vq_config.num_max);
602 sch->curr_status.scsw.count = ccw.count - sizeof(vq_config);
603 ret = 0;
604 }
605 break;
606 case CCW_CMD_SET_IND_ADAPTER:
607 if (check_len) {
608 if (ccw.count != sizeof(thinint)) {
609 ret = -EINVAL;
610 break;
611 }
612 } else if (ccw.count < sizeof(thinint)) {
613 /* Can't execute command. */
614 ret = -EINVAL;
615 break;
616 }
617 if (!ccw.cda) {
618 ret = -EFAULT;
619 } else if (dev->indicators && !sch->thinint_active) {
620 /* Trigger a command reject. */
621 ret = -ENOSYS;
622 } else {
623 if (ccw_dstream_read(&sch->cds, thinint)) {
624 ret = -EFAULT;
625 } else {
626 be64_to_cpus(&thinint.ind_bit);
627 be64_to_cpus(&thinint.summary_indicator);
628 be64_to_cpus(&thinint.device_indicator);
629
630 dev->summary_indicator =
631 get_indicator(thinint.summary_indicator, sizeof(uint8_t));
632 dev->indicators =
633 get_indicator(thinint.device_indicator,
634 thinint.ind_bit / 8 + 1);
635 dev->thinint_isc = thinint.isc;
636 dev->routes.adapter.ind_offset = thinint.ind_bit;
637 dev->routes.adapter.summary_offset = 7;
638 dev->routes.adapter.adapter_id = css_get_adapter_id(
639 CSS_IO_ADAPTER_VIRTIO,
640 dev->thinint_isc);
641 sch->thinint_active = ((dev->indicators != NULL) &&
642 (dev->summary_indicator != NULL));
643 sch->curr_status.scsw.count = ccw.count - sizeof(thinint);
644 ret = 0;
645 }
646 }
647 break;
648 case CCW_CMD_SET_VIRTIO_REV:
649 len = sizeof(revinfo);
650 if (ccw.count < len) {
651 ret = -EINVAL;
652 break;
653 }
654 if (!ccw.cda) {
655 ret = -EFAULT;
656 break;
657 }
658 ccw_dstream_read_buf(&sch->cds, &revinfo, 4);
659 be16_to_cpus(&revinfo.revision);
660 be16_to_cpus(&revinfo.length);
661 if (ccw.count < len + revinfo.length ||
662 (check_len && ccw.count > len + revinfo.length)) {
663 ret = -EINVAL;
664 break;
665 }
666 /*
667 * Once we start to support revisions with additional data, we'll
668 * need to fetch it here. Nothing to do for now, though.
669 */
670 if (dev->revision >= 0 ||
671 revinfo.revision > virtio_ccw_rev_max(dev) ||
672 (dev->force_revision_1 && !revinfo.revision)) {
673 ret = -ENOSYS;
674 break;
675 }
676 ret = 0;
677 dev->revision = revinfo.revision;
678 break;
679 default:
680 ret = -ENOSYS;
681 break;
682 }
683 return ret;
684 }
685
686 static void virtio_sch_disable_cb(SubchDev *sch)
687 {
688 VirtioCcwDevice *dev = sch->driver_data;
689
690 dev->revision = -1;
691 }
692
693 static void virtio_ccw_device_realize(VirtioCcwDevice *dev, Error **errp)
694 {
695 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_GET_CLASS(dev);
696 CcwDevice *ccw_dev = CCW_DEVICE(dev);
697 CCWDeviceClass *ck = CCW_DEVICE_GET_CLASS(ccw_dev);
698 DeviceState *parent = DEVICE(ccw_dev);
699 BusState *qbus = qdev_get_parent_bus(parent);
700 VirtualCssBus *cbus = VIRTUAL_CSS_BUS(qbus);
701 SubchDev *sch;
702 Error *err = NULL;
703
704 sch = css_create_sch(ccw_dev->devno, cbus->squash_mcss, errp);
705 if (!sch) {
706 return;
707 }
708 if (!virtio_ccw_rev_max(dev) && dev->force_revision_1) {
709 error_setg(&err, "Invalid value of property max_rev "
710 "(is %d expected >= 1)", virtio_ccw_rev_max(dev));
711 goto out_err;
712 }
713
714 sch->driver_data = dev;
715 sch->ccw_cb = virtio_ccw_cb;
716 sch->disable_cb = virtio_sch_disable_cb;
717 sch->id.reserved = 0xff;
718 sch->id.cu_type = VIRTIO_CCW_CU_TYPE;
719 sch->do_subchannel_work = do_subchannel_work_virtual;
720 ccw_dev->sch = sch;
721 dev->indicators = NULL;
722 dev->revision = -1;
723 css_sch_build_virtual_schib(sch, 0, VIRTIO_CCW_CHPID_TYPE);
724
725 trace_virtio_ccw_new_device(
726 sch->cssid, sch->ssid, sch->schid, sch->devno,
727 ccw_dev->devno.valid ? "user-configured" : "auto-configured");
728
729 if (kvm_enabled() && !kvm_eventfds_enabled()) {
730 dev->flags &= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD;
731 }
732
733 if (k->realize) {
734 k->realize(dev, &err);
735 if (err) {
736 goto out_err;
737 }
738 }
739
740 ck->realize(ccw_dev, &err);
741 if (err) {
742 goto out_err;
743 }
744
745 return;
746
747 out_err:
748 error_propagate(errp, err);
749 css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL);
750 ccw_dev->sch = NULL;
751 g_free(sch);
752 }
753
754 static int virtio_ccw_exit(VirtioCcwDevice *dev)
755 {
756 CcwDevice *ccw_dev = CCW_DEVICE(dev);
757 SubchDev *sch = ccw_dev->sch;
758
759 if (sch) {
760 css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL);
761 g_free(sch);
762 }
763 if (dev->indicators) {
764 release_indicator(&dev->routes.adapter, dev->indicators);
765 dev->indicators = NULL;
766 }
767 return 0;
768 }
769
770 static void virtio_ccw_net_realize(VirtioCcwDevice *ccw_dev, Error **errp)
771 {
772 DeviceState *qdev = DEVICE(ccw_dev);
773 VirtIONetCcw *dev = VIRTIO_NET_CCW(ccw_dev);
774 DeviceState *vdev = DEVICE(&dev->vdev);
775
776 virtio_net_set_netclient_name(&dev->vdev, qdev->id,
777 object_get_typename(OBJECT(qdev)));
778 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
779 object_property_set_bool(OBJECT(vdev), true, "realized", errp);
780 }
781
782 static void virtio_ccw_net_instance_init(Object *obj)
783 {
784 VirtIONetCcw *dev = VIRTIO_NET_CCW(obj);
785
786 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
787 TYPE_VIRTIO_NET);
788 object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
789 "bootindex", &error_abort);
790 }
791
792 static void virtio_ccw_blk_realize(VirtioCcwDevice *ccw_dev, Error **errp)
793 {
794 VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(ccw_dev);
795 DeviceState *vdev = DEVICE(&dev->vdev);
796
797 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
798 object_property_set_bool(OBJECT(vdev), true, "realized", errp);
799 }
800
801 static void virtio_ccw_blk_instance_init(Object *obj)
802 {
803 VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(obj);
804
805 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
806 TYPE_VIRTIO_BLK);
807 object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
808 "bootindex", &error_abort);
809 }
810
811 static void virtio_ccw_serial_realize(VirtioCcwDevice *ccw_dev, Error **errp)
812 {
813 VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(ccw_dev);
814 DeviceState *vdev = DEVICE(&dev->vdev);
815 DeviceState *proxy = DEVICE(ccw_dev);
816 char *bus_name;
817
818 /*
819 * For command line compatibility, this sets the virtio-serial-device bus
820 * name as before.
821 */
822 if (proxy->id) {
823 bus_name = g_strdup_printf("%s.0", proxy->id);
824 virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
825 g_free(bus_name);
826 }
827
828 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
829 object_property_set_bool(OBJECT(vdev), true, "realized", errp);
830 }
831
832
833 static void virtio_ccw_serial_instance_init(Object *obj)
834 {
835 VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(obj);
836
837 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
838 TYPE_VIRTIO_SERIAL);
839 }
840
841 static void virtio_ccw_balloon_realize(VirtioCcwDevice *ccw_dev, Error **errp)
842 {
843 VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(ccw_dev);
844 DeviceState *vdev = DEVICE(&dev->vdev);
845
846 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
847 object_property_set_bool(OBJECT(vdev), true, "realized", errp);
848 }
849
850 static void virtio_ccw_balloon_instance_init(Object *obj)
851 {
852 VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(obj);
853
854 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
855 TYPE_VIRTIO_BALLOON);
856 object_property_add_alias(obj, "guest-stats", OBJECT(&dev->vdev),
857 "guest-stats", &error_abort);
858 object_property_add_alias(obj, "guest-stats-polling-interval",
859 OBJECT(&dev->vdev),
860 "guest-stats-polling-interval", &error_abort);
861 }
862
863 static void virtio_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp)
864 {
865 VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(ccw_dev);
866 DeviceState *vdev = DEVICE(&dev->vdev);
867 DeviceState *qdev = DEVICE(ccw_dev);
868 char *bus_name;
869
870 /*
871 * For command line compatibility, this sets the virtio-scsi-device bus
872 * name as before.
873 */
874 if (qdev->id) {
875 bus_name = g_strdup_printf("%s.0", qdev->id);
876 virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
877 g_free(bus_name);
878 }
879
880 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
881 object_property_set_bool(OBJECT(vdev), true, "realized", errp);
882 }
883
884 static void virtio_ccw_scsi_instance_init(Object *obj)
885 {
886 VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(obj);
887
888 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
889 TYPE_VIRTIO_SCSI);
890 }
891
892 #ifdef CONFIG_VHOST_SCSI
893 static void vhost_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp)
894 {
895 VHostSCSICcw *dev = VHOST_SCSI_CCW(ccw_dev);
896 DeviceState *vdev = DEVICE(&dev->vdev);
897
898 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
899 object_property_set_bool(OBJECT(vdev), true, "realized", errp);
900 }
901
902 static void vhost_ccw_scsi_instance_init(Object *obj)
903 {
904 VHostSCSICcw *dev = VHOST_SCSI_CCW(obj);
905
906 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
907 TYPE_VHOST_SCSI);
908 }
909 #endif
910
911 static void virtio_ccw_rng_realize(VirtioCcwDevice *ccw_dev, Error **errp)
912 {
913 VirtIORNGCcw *dev = VIRTIO_RNG_CCW(ccw_dev);
914 DeviceState *vdev = DEVICE(&dev->vdev);
915 Error *err = NULL;
916
917 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
918 object_property_set_bool(OBJECT(vdev), true, "realized", &err);
919 if (err) {
920 error_propagate(errp, err);
921 return;
922 }
923
924 object_property_set_link(OBJECT(dev),
925 OBJECT(dev->vdev.conf.rng), "rng",
926 NULL);
927 }
928
929 static void virtio_ccw_crypto_realize(VirtioCcwDevice *ccw_dev, Error **errp)
930 {
931 VirtIOCryptoCcw *dev = VIRTIO_CRYPTO_CCW(ccw_dev);
932 DeviceState *vdev = DEVICE(&dev->vdev);
933 Error *err = NULL;
934
935 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
936 object_property_set_bool(OBJECT(vdev), true, "realized", &err);
937 if (err) {
938 error_propagate(errp, err);
939 return;
940 }
941
942 object_property_set_link(OBJECT(vdev),
943 OBJECT(dev->vdev.conf.cryptodev), "cryptodev",
944 NULL);
945 }
946
947 static void virtio_ccw_gpu_realize(VirtioCcwDevice *ccw_dev, Error **errp)
948 {
949 VirtIOGPUCcw *dev = VIRTIO_GPU_CCW(ccw_dev);
950 DeviceState *vdev = DEVICE(&dev->vdev);
951
952 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
953 object_property_set_bool(OBJECT(vdev), true, "realized", errp);
954 }
955
956 static void virtio_ccw_input_realize(VirtioCcwDevice *ccw_dev, Error **errp)
957 {
958 VirtIOInputCcw *dev = VIRTIO_INPUT_CCW(ccw_dev);
959 DeviceState *vdev = DEVICE(&dev->vdev);
960
961 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
962 object_property_set_bool(OBJECT(vdev), true, "realized", errp);
963 }
964
965 /* DeviceState to VirtioCcwDevice. Note: used on datapath,
966 * be careful and test performance if you change this.
967 */
968 static inline VirtioCcwDevice *to_virtio_ccw_dev_fast(DeviceState *d)
969 {
970 CcwDevice *ccw_dev = to_ccw_dev_fast(d);
971
972 return container_of(ccw_dev, VirtioCcwDevice, parent_obj);
973 }
974
975 static uint8_t virtio_set_ind_atomic(SubchDev *sch, uint64_t ind_loc,
976 uint8_t to_be_set)
977 {
978 uint8_t ind_old, ind_new;
979 hwaddr len = 1;
980 uint8_t *ind_addr;
981
982 ind_addr = cpu_physical_memory_map(ind_loc, &len, 1);
983 if (!ind_addr) {
984 error_report("%s(%x.%x.%04x): unable to access indicator",
985 __func__, sch->cssid, sch->ssid, sch->schid);
986 return -1;
987 }
988 do {
989 ind_old = *ind_addr;
990 ind_new = ind_old | to_be_set;
991 } while (atomic_cmpxchg(ind_addr, ind_old, ind_new) != ind_old);
992 trace_virtio_ccw_set_ind(ind_loc, ind_old, ind_new);
993 cpu_physical_memory_unmap(ind_addr, len, 1, len);
994
995 return ind_old;
996 }
997
998 static void virtio_ccw_notify(DeviceState *d, uint16_t vector)
999 {
1000 VirtioCcwDevice *dev = to_virtio_ccw_dev_fast(d);
1001 CcwDevice *ccw_dev = to_ccw_dev_fast(d);
1002 SubchDev *sch = ccw_dev->sch;
1003 uint64_t indicators;
1004
1005 /* queue indicators + secondary indicators */
1006 if (vector >= VIRTIO_QUEUE_MAX + 64) {
1007 return;
1008 }
1009
1010 if (vector < VIRTIO_QUEUE_MAX) {
1011 if (!dev->indicators) {
1012 return;
1013 }
1014 if (sch->thinint_active) {
1015 /*
1016 * In the adapter interrupt case, indicators points to a
1017 * memory area that may be (way) larger than 64 bit and
1018 * ind_bit indicates the start of the indicators in a big
1019 * endian notation.
1020 */
1021 uint64_t ind_bit = dev->routes.adapter.ind_offset;
1022
1023 virtio_set_ind_atomic(sch, dev->indicators->addr +
1024 (ind_bit + vector) / 8,
1025 0x80 >> ((ind_bit + vector) % 8));
1026 if (!virtio_set_ind_atomic(sch, dev->summary_indicator->addr,
1027 0x01)) {
1028 css_adapter_interrupt(CSS_IO_ADAPTER_VIRTIO, dev->thinint_isc);
1029 }
1030 } else {
1031 indicators = address_space_ldq(&address_space_memory,
1032 dev->indicators->addr,
1033 MEMTXATTRS_UNSPECIFIED,
1034 NULL);
1035 indicators |= 1ULL << vector;
1036 address_space_stq(&address_space_memory, dev->indicators->addr,
1037 indicators, MEMTXATTRS_UNSPECIFIED, NULL);
1038 css_conditional_io_interrupt(sch);
1039 }
1040 } else {
1041 if (!dev->indicators2) {
1042 return;
1043 }
1044 vector = 0;
1045 indicators = address_space_ldq(&address_space_memory,
1046 dev->indicators2->addr,
1047 MEMTXATTRS_UNSPECIFIED,
1048 NULL);
1049 indicators |= 1ULL << vector;
1050 address_space_stq(&address_space_memory, dev->indicators2->addr,
1051 indicators, MEMTXATTRS_UNSPECIFIED, NULL);
1052 css_conditional_io_interrupt(sch);
1053 }
1054 }
1055
1056 static void virtio_ccw_reset(DeviceState *d)
1057 {
1058 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1059 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1060 CcwDevice *ccw_dev = CCW_DEVICE(d);
1061
1062 virtio_ccw_reset_virtio(dev, vdev);
1063 css_reset_sch(ccw_dev->sch);
1064 }
1065
1066 static void virtio_ccw_vmstate_change(DeviceState *d, bool running)
1067 {
1068 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1069
1070 if (running) {
1071 virtio_ccw_start_ioeventfd(dev);
1072 } else {
1073 virtio_ccw_stop_ioeventfd(dev);
1074 }
1075 }
1076
1077 static bool virtio_ccw_query_guest_notifiers(DeviceState *d)
1078 {
1079 CcwDevice *dev = CCW_DEVICE(d);
1080
1081 return !!(dev->sch->curr_status.pmcw.flags & PMCW_FLAGS_MASK_ENA);
1082 }
1083
1084 static int virtio_ccw_get_mappings(VirtioCcwDevice *dev)
1085 {
1086 int r;
1087 CcwDevice *ccw_dev = CCW_DEVICE(dev);
1088
1089 if (!ccw_dev->sch->thinint_active) {
1090 return -EINVAL;
1091 }
1092
1093 r = map_indicator(&dev->routes.adapter, dev->summary_indicator);
1094 if (r) {
1095 return r;
1096 }
1097 r = map_indicator(&dev->routes.adapter, dev->indicators);
1098 if (r) {
1099 return r;
1100 }
1101 dev->routes.adapter.summary_addr = dev->summary_indicator->map;
1102 dev->routes.adapter.ind_addr = dev->indicators->map;
1103
1104 return 0;
1105 }
1106
1107 static int virtio_ccw_setup_irqroutes(VirtioCcwDevice *dev, int nvqs)
1108 {
1109 int i;
1110 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1111 int ret;
1112 S390FLICState *fs = s390_get_flic();
1113 S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs);
1114
1115 ret = virtio_ccw_get_mappings(dev);
1116 if (ret) {
1117 return ret;
1118 }
1119 for (i = 0; i < nvqs; i++) {
1120 if (!virtio_queue_get_num(vdev, i)) {
1121 break;
1122 }
1123 }
1124 dev->routes.num_routes = i;
1125 return fsc->add_adapter_routes(fs, &dev->routes);
1126 }
1127
1128 static void virtio_ccw_release_irqroutes(VirtioCcwDevice *dev, int nvqs)
1129 {
1130 S390FLICState *fs = s390_get_flic();
1131 S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs);
1132
1133 fsc->release_adapter_routes(fs, &dev->routes);
1134 }
1135
1136 static int virtio_ccw_add_irqfd(VirtioCcwDevice *dev, int n)
1137 {
1138 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1139 VirtQueue *vq = virtio_get_queue(vdev, n);
1140 EventNotifier *notifier = virtio_queue_get_guest_notifier(vq);
1141
1142 return kvm_irqchip_add_irqfd_notifier_gsi(kvm_state, notifier, NULL,
1143 dev->routes.gsi[n]);
1144 }
1145
1146 static void virtio_ccw_remove_irqfd(VirtioCcwDevice *dev, int n)
1147 {
1148 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1149 VirtQueue *vq = virtio_get_queue(vdev, n);
1150 EventNotifier *notifier = virtio_queue_get_guest_notifier(vq);
1151 int ret;
1152
1153 ret = kvm_irqchip_remove_irqfd_notifier_gsi(kvm_state, notifier,
1154 dev->routes.gsi[n]);
1155 assert(ret == 0);
1156 }
1157
1158 static int virtio_ccw_set_guest_notifier(VirtioCcwDevice *dev, int n,
1159 bool assign, bool with_irqfd)
1160 {
1161 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1162 VirtQueue *vq = virtio_get_queue(vdev, n);
1163 EventNotifier *notifier = virtio_queue_get_guest_notifier(vq);
1164 VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
1165
1166 if (assign) {
1167 int r = event_notifier_init(notifier, 0);
1168
1169 if (r < 0) {
1170 return r;
1171 }
1172 virtio_queue_set_guest_notifier_fd_handler(vq, true, with_irqfd);
1173 if (with_irqfd) {
1174 r = virtio_ccw_add_irqfd(dev, n);
1175 if (r) {
1176 virtio_queue_set_guest_notifier_fd_handler(vq, false,
1177 with_irqfd);
1178 return r;
1179 }
1180 }
1181 /*
1182 * We do not support individual masking for channel devices, so we
1183 * need to manually trigger any guest masking callbacks here.
1184 */
1185 if (k->guest_notifier_mask && vdev->use_guest_notifier_mask) {
1186 k->guest_notifier_mask(vdev, n, false);
1187 }
1188 /* get lost events and re-inject */
1189 if (k->guest_notifier_pending &&
1190 k->guest_notifier_pending(vdev, n)) {
1191 event_notifier_set(notifier);
1192 }
1193 } else {
1194 if (k->guest_notifier_mask && vdev->use_guest_notifier_mask) {
1195 k->guest_notifier_mask(vdev, n, true);
1196 }
1197 if (with_irqfd) {
1198 virtio_ccw_remove_irqfd(dev, n);
1199 }
1200 virtio_queue_set_guest_notifier_fd_handler(vq, false, with_irqfd);
1201 event_notifier_cleanup(notifier);
1202 }
1203 return 0;
1204 }
1205
1206 static int virtio_ccw_set_guest_notifiers(DeviceState *d, int nvqs,
1207 bool assigned)
1208 {
1209 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1210 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1211 CcwDevice *ccw_dev = CCW_DEVICE(d);
1212 bool with_irqfd = ccw_dev->sch->thinint_active && kvm_irqfds_enabled();
1213 int r, n;
1214
1215 if (with_irqfd && assigned) {
1216 /* irq routes need to be set up before assigning irqfds */
1217 r = virtio_ccw_setup_irqroutes(dev, nvqs);
1218 if (r < 0) {
1219 goto irqroute_error;
1220 }
1221 }
1222 for (n = 0; n < nvqs; n++) {
1223 if (!virtio_queue_get_num(vdev, n)) {
1224 break;
1225 }
1226 r = virtio_ccw_set_guest_notifier(dev, n, assigned, with_irqfd);
1227 if (r < 0) {
1228 goto assign_error;
1229 }
1230 }
1231 if (with_irqfd && !assigned) {
1232 /* release irq routes after irqfds have been released */
1233 virtio_ccw_release_irqroutes(dev, nvqs);
1234 }
1235 return 0;
1236
1237 assign_error:
1238 while (--n >= 0) {
1239 virtio_ccw_set_guest_notifier(dev, n, !assigned, false);
1240 }
1241 irqroute_error:
1242 if (with_irqfd && assigned) {
1243 virtio_ccw_release_irqroutes(dev, nvqs);
1244 }
1245 return r;
1246 }
1247
1248 static void virtio_ccw_save_queue(DeviceState *d, int n, QEMUFile *f)
1249 {
1250 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1251 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1252
1253 qemu_put_be16(f, virtio_queue_vector(vdev, n));
1254 }
1255
1256 static int virtio_ccw_load_queue(DeviceState *d, int n, QEMUFile *f)
1257 {
1258 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1259 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1260 uint16_t vector;
1261
1262 qemu_get_be16s(f, &vector);
1263 virtio_queue_set_vector(vdev, n , vector);
1264
1265 return 0;
1266 }
1267
1268 static void virtio_ccw_save_config(DeviceState *d, QEMUFile *f)
1269 {
1270 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1271 vmstate_save_state(f, &vmstate_virtio_ccw_dev, dev, NULL);
1272 }
1273
1274 static int virtio_ccw_load_config(DeviceState *d, QEMUFile *f)
1275 {
1276 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1277 return vmstate_load_state(f, &vmstate_virtio_ccw_dev, dev, 1);
1278 }
1279
1280 static void virtio_ccw_pre_plugged(DeviceState *d, Error **errp)
1281 {
1282 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1283 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1284
1285 if (dev->max_rev >= 1) {
1286 virtio_add_feature(&vdev->host_features, VIRTIO_F_VERSION_1);
1287 }
1288 }
1289
1290 /* This is called by virtio-bus just after the device is plugged. */
1291 static void virtio_ccw_device_plugged(DeviceState *d, Error **errp)
1292 {
1293 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1294 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1295 CcwDevice *ccw_dev = CCW_DEVICE(d);
1296 SubchDev *sch = ccw_dev->sch;
1297 int n = virtio_get_num_queues(vdev);
1298 S390FLICState *flic = s390_get_flic();
1299
1300 if (!virtio_has_feature(vdev->host_features, VIRTIO_F_VERSION_1)) {
1301 dev->max_rev = 0;
1302 }
1303
1304 if (virtio_get_num_queues(vdev) > VIRTIO_QUEUE_MAX) {
1305 error_setg(errp, "The number of virtqueues %d "
1306 "exceeds virtio limit %d", n,
1307 VIRTIO_QUEUE_MAX);
1308 return;
1309 }
1310 if (virtio_get_num_queues(vdev) > flic->adapter_routes_max_batch) {
1311 error_setg(errp, "The number of virtqueues %d "
1312 "exceeds flic adapter route limit %d", n,
1313 flic->adapter_routes_max_batch);
1314 return;
1315 }
1316
1317 sch->id.cu_model = virtio_bus_get_vdev_id(&dev->bus);
1318
1319
1320 css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid,
1321 d->hotplugged, 1);
1322 }
1323
1324 static void virtio_ccw_device_unplugged(DeviceState *d)
1325 {
1326 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1327
1328 virtio_ccw_stop_ioeventfd(dev);
1329 }
1330 /**************** Virtio-ccw Bus Device Descriptions *******************/
1331
1332 static Property virtio_ccw_net_properties[] = {
1333 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1334 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
1335 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1336 VIRTIO_CCW_MAX_REV),
1337 DEFINE_PROP_END_OF_LIST(),
1338 };
1339
1340 static void virtio_ccw_net_class_init(ObjectClass *klass, void *data)
1341 {
1342 DeviceClass *dc = DEVICE_CLASS(klass);
1343 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1344
1345 k->realize = virtio_ccw_net_realize;
1346 k->exit = virtio_ccw_exit;
1347 dc->reset = virtio_ccw_reset;
1348 dc->props = virtio_ccw_net_properties;
1349 set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
1350 }
1351
1352 static const TypeInfo virtio_ccw_net = {
1353 .name = TYPE_VIRTIO_NET_CCW,
1354 .parent = TYPE_VIRTIO_CCW_DEVICE,
1355 .instance_size = sizeof(VirtIONetCcw),
1356 .instance_init = virtio_ccw_net_instance_init,
1357 .class_init = virtio_ccw_net_class_init,
1358 };
1359
1360 static Property virtio_ccw_blk_properties[] = {
1361 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1362 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
1363 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1364 VIRTIO_CCW_MAX_REV),
1365 DEFINE_PROP_END_OF_LIST(),
1366 };
1367
1368 static void virtio_ccw_blk_class_init(ObjectClass *klass, void *data)
1369 {
1370 DeviceClass *dc = DEVICE_CLASS(klass);
1371 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1372
1373 k->realize = virtio_ccw_blk_realize;
1374 k->exit = virtio_ccw_exit;
1375 dc->reset = virtio_ccw_reset;
1376 dc->props = virtio_ccw_blk_properties;
1377 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
1378 }
1379
1380 static const TypeInfo virtio_ccw_blk = {
1381 .name = TYPE_VIRTIO_BLK_CCW,
1382 .parent = TYPE_VIRTIO_CCW_DEVICE,
1383 .instance_size = sizeof(VirtIOBlkCcw),
1384 .instance_init = virtio_ccw_blk_instance_init,
1385 .class_init = virtio_ccw_blk_class_init,
1386 };
1387
1388 static Property virtio_ccw_serial_properties[] = {
1389 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1390 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
1391 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1392 VIRTIO_CCW_MAX_REV),
1393 DEFINE_PROP_END_OF_LIST(),
1394 };
1395
1396 static void virtio_ccw_serial_class_init(ObjectClass *klass, void *data)
1397 {
1398 DeviceClass *dc = DEVICE_CLASS(klass);
1399 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1400
1401 k->realize = virtio_ccw_serial_realize;
1402 k->exit = virtio_ccw_exit;
1403 dc->reset = virtio_ccw_reset;
1404 dc->props = virtio_ccw_serial_properties;
1405 set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
1406 }
1407
1408 static const TypeInfo virtio_ccw_serial = {
1409 .name = TYPE_VIRTIO_SERIAL_CCW,
1410 .parent = TYPE_VIRTIO_CCW_DEVICE,
1411 .instance_size = sizeof(VirtioSerialCcw),
1412 .instance_init = virtio_ccw_serial_instance_init,
1413 .class_init = virtio_ccw_serial_class_init,
1414 };
1415
1416 static Property virtio_ccw_balloon_properties[] = {
1417 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1418 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
1419 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1420 VIRTIO_CCW_MAX_REV),
1421 DEFINE_PROP_END_OF_LIST(),
1422 };
1423
1424 static void virtio_ccw_balloon_class_init(ObjectClass *klass, void *data)
1425 {
1426 DeviceClass *dc = DEVICE_CLASS(klass);
1427 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1428
1429 k->realize = virtio_ccw_balloon_realize;
1430 k->exit = virtio_ccw_exit;
1431 dc->reset = virtio_ccw_reset;
1432 dc->props = virtio_ccw_balloon_properties;
1433 set_bit(DEVICE_CATEGORY_MISC, dc->categories);
1434 }
1435
1436 static const TypeInfo virtio_ccw_balloon = {
1437 .name = TYPE_VIRTIO_BALLOON_CCW,
1438 .parent = TYPE_VIRTIO_CCW_DEVICE,
1439 .instance_size = sizeof(VirtIOBalloonCcw),
1440 .instance_init = virtio_ccw_balloon_instance_init,
1441 .class_init = virtio_ccw_balloon_class_init,
1442 };
1443
1444 static Property virtio_ccw_scsi_properties[] = {
1445 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1446 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
1447 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1448 VIRTIO_CCW_MAX_REV),
1449 DEFINE_PROP_END_OF_LIST(),
1450 };
1451
1452 static void virtio_ccw_scsi_class_init(ObjectClass *klass, void *data)
1453 {
1454 DeviceClass *dc = DEVICE_CLASS(klass);
1455 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1456
1457 k->realize = virtio_ccw_scsi_realize;
1458 k->exit = virtio_ccw_exit;
1459 dc->reset = virtio_ccw_reset;
1460 dc->props = virtio_ccw_scsi_properties;
1461 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
1462 }
1463
1464 static const TypeInfo virtio_ccw_scsi = {
1465 .name = TYPE_VIRTIO_SCSI_CCW,
1466 .parent = TYPE_VIRTIO_CCW_DEVICE,
1467 .instance_size = sizeof(VirtIOSCSICcw),
1468 .instance_init = virtio_ccw_scsi_instance_init,
1469 .class_init = virtio_ccw_scsi_class_init,
1470 };
1471
1472 #ifdef CONFIG_VHOST_SCSI
1473 static Property vhost_ccw_scsi_properties[] = {
1474 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1475 VIRTIO_CCW_MAX_REV),
1476 DEFINE_PROP_END_OF_LIST(),
1477 };
1478
1479 static void vhost_ccw_scsi_class_init(ObjectClass *klass, void *data)
1480 {
1481 DeviceClass *dc = DEVICE_CLASS(klass);
1482 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1483
1484 k->realize = vhost_ccw_scsi_realize;
1485 k->exit = virtio_ccw_exit;
1486 dc->reset = virtio_ccw_reset;
1487 dc->props = vhost_ccw_scsi_properties;
1488 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
1489 }
1490
1491 static const TypeInfo vhost_ccw_scsi = {
1492 .name = TYPE_VHOST_SCSI_CCW,
1493 .parent = TYPE_VIRTIO_CCW_DEVICE,
1494 .instance_size = sizeof(VHostSCSICcw),
1495 .instance_init = vhost_ccw_scsi_instance_init,
1496 .class_init = vhost_ccw_scsi_class_init,
1497 };
1498 #endif
1499
1500 static void virtio_ccw_rng_instance_init(Object *obj)
1501 {
1502 VirtIORNGCcw *dev = VIRTIO_RNG_CCW(obj);
1503
1504 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
1505 TYPE_VIRTIO_RNG);
1506 }
1507
1508 static Property virtio_ccw_rng_properties[] = {
1509 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1510 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
1511 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1512 VIRTIO_CCW_MAX_REV),
1513 DEFINE_PROP_END_OF_LIST(),
1514 };
1515
1516 static void virtio_ccw_rng_class_init(ObjectClass *klass, void *data)
1517 {
1518 DeviceClass *dc = DEVICE_CLASS(klass);
1519 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1520
1521 k->realize = virtio_ccw_rng_realize;
1522 k->exit = virtio_ccw_exit;
1523 dc->reset = virtio_ccw_reset;
1524 dc->props = virtio_ccw_rng_properties;
1525 set_bit(DEVICE_CATEGORY_MISC, dc->categories);
1526 }
1527
1528 static const TypeInfo virtio_ccw_rng = {
1529 .name = TYPE_VIRTIO_RNG_CCW,
1530 .parent = TYPE_VIRTIO_CCW_DEVICE,
1531 .instance_size = sizeof(VirtIORNGCcw),
1532 .instance_init = virtio_ccw_rng_instance_init,
1533 .class_init = virtio_ccw_rng_class_init,
1534 };
1535
1536 static Property virtio_ccw_crypto_properties[] = {
1537 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1538 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
1539 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1540 VIRTIO_CCW_MAX_REV),
1541 DEFINE_PROP_END_OF_LIST(),
1542 };
1543
1544 static void virtio_ccw_crypto_instance_init(Object *obj)
1545 {
1546 VirtIOCryptoCcw *dev = VIRTIO_CRYPTO_CCW(obj);
1547 VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj);
1548
1549 ccw_dev->force_revision_1 = true;
1550 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
1551 TYPE_VIRTIO_CRYPTO);
1552 }
1553
1554 static void virtio_ccw_crypto_class_init(ObjectClass *klass, void *data)
1555 {
1556 DeviceClass *dc = DEVICE_CLASS(klass);
1557 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1558
1559 k->realize = virtio_ccw_crypto_realize;
1560 k->exit = virtio_ccw_exit;
1561 dc->reset = virtio_ccw_reset;
1562 dc->props = virtio_ccw_crypto_properties;
1563 set_bit(DEVICE_CATEGORY_MISC, dc->categories);
1564 }
1565
1566 static const TypeInfo virtio_ccw_crypto = {
1567 .name = TYPE_VIRTIO_CRYPTO_CCW,
1568 .parent = TYPE_VIRTIO_CCW_DEVICE,
1569 .instance_size = sizeof(VirtIOCryptoCcw),
1570 .instance_init = virtio_ccw_crypto_instance_init,
1571 .class_init = virtio_ccw_crypto_class_init,
1572 };
1573
1574 static Property virtio_ccw_gpu_properties[] = {
1575 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1576 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
1577 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1578 VIRTIO_CCW_MAX_REV),
1579 DEFINE_PROP_END_OF_LIST(),
1580 };
1581
1582 static void virtio_ccw_gpu_instance_init(Object *obj)
1583 {
1584 VirtIOGPUCcw *dev = VIRTIO_GPU_CCW(obj);
1585 VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj);
1586
1587 ccw_dev->force_revision_1 = true;
1588 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
1589 TYPE_VIRTIO_GPU);
1590 }
1591
1592 static void virtio_ccw_gpu_class_init(ObjectClass *klass, void *data)
1593 {
1594 DeviceClass *dc = DEVICE_CLASS(klass);
1595 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1596
1597 k->realize = virtio_ccw_gpu_realize;
1598 k->exit = virtio_ccw_exit;
1599 dc->reset = virtio_ccw_reset;
1600 dc->props = virtio_ccw_gpu_properties;
1601 dc->hotpluggable = false;
1602 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
1603 }
1604
1605 static const TypeInfo virtio_ccw_gpu = {
1606 .name = TYPE_VIRTIO_GPU_CCW,
1607 .parent = TYPE_VIRTIO_CCW_DEVICE,
1608 .instance_size = sizeof(VirtIOGPUCcw),
1609 .instance_init = virtio_ccw_gpu_instance_init,
1610 .class_init = virtio_ccw_gpu_class_init,
1611 };
1612
1613 static Property virtio_ccw_input_properties[] = {
1614 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1615 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
1616 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1617 VIRTIO_CCW_MAX_REV),
1618 DEFINE_PROP_END_OF_LIST(),
1619 };
1620
1621 static void virtio_ccw_input_class_init(ObjectClass *klass, void *data)
1622 {
1623 DeviceClass *dc = DEVICE_CLASS(klass);
1624 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1625
1626 k->realize = virtio_ccw_input_realize;
1627 k->exit = virtio_ccw_exit;
1628 dc->reset = virtio_ccw_reset;
1629 dc->props = virtio_ccw_input_properties;
1630 set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
1631 }
1632
1633 static void virtio_ccw_keyboard_instance_init(Object *obj)
1634 {
1635 VirtIOInputHIDCcw *dev = VIRTIO_INPUT_HID_CCW(obj);
1636 VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj);
1637
1638 ccw_dev->force_revision_1 = true;
1639 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
1640 TYPE_VIRTIO_KEYBOARD);
1641 }
1642
1643 static void virtio_ccw_mouse_instance_init(Object *obj)
1644 {
1645 VirtIOInputHIDCcw *dev = VIRTIO_INPUT_HID_CCW(obj);
1646 VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj);
1647
1648 ccw_dev->force_revision_1 = true;
1649 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
1650 TYPE_VIRTIO_MOUSE);
1651 }
1652
1653 static void virtio_ccw_tablet_instance_init(Object *obj)
1654 {
1655 VirtIOInputHIDCcw *dev = VIRTIO_INPUT_HID_CCW(obj);
1656 VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj);
1657
1658 ccw_dev->force_revision_1 = true;
1659 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
1660 TYPE_VIRTIO_TABLET);
1661 }
1662
1663 static const TypeInfo virtio_ccw_input = {
1664 .name = TYPE_VIRTIO_INPUT_CCW,
1665 .parent = TYPE_VIRTIO_CCW_DEVICE,
1666 .instance_size = sizeof(VirtIOInputCcw),
1667 .class_init = virtio_ccw_input_class_init,
1668 .abstract = true,
1669 };
1670
1671 static const TypeInfo virtio_ccw_input_hid = {
1672 .name = TYPE_VIRTIO_INPUT_HID_CCW,
1673 .parent = TYPE_VIRTIO_INPUT_CCW,
1674 .instance_size = sizeof(VirtIOInputHIDCcw),
1675 .abstract = true,
1676 };
1677
1678 static const TypeInfo virtio_ccw_keyboard = {
1679 .name = TYPE_VIRTIO_KEYBOARD_CCW,
1680 .parent = TYPE_VIRTIO_INPUT_HID_CCW,
1681 .instance_size = sizeof(VirtIOInputHIDCcw),
1682 .instance_init = virtio_ccw_keyboard_instance_init,
1683 };
1684
1685 static const TypeInfo virtio_ccw_mouse = {
1686 .name = TYPE_VIRTIO_MOUSE_CCW,
1687 .parent = TYPE_VIRTIO_INPUT_HID_CCW,
1688 .instance_size = sizeof(VirtIOInputHIDCcw),
1689 .instance_init = virtio_ccw_mouse_instance_init,
1690 };
1691
1692 static const TypeInfo virtio_ccw_tablet = {
1693 .name = TYPE_VIRTIO_TABLET_CCW,
1694 .parent = TYPE_VIRTIO_INPUT_HID_CCW,
1695 .instance_size = sizeof(VirtIOInputHIDCcw),
1696 .instance_init = virtio_ccw_tablet_instance_init,
1697 };
1698
1699 static void virtio_ccw_busdev_realize(DeviceState *dev, Error **errp)
1700 {
1701 VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev;
1702
1703 virtio_ccw_bus_new(&_dev->bus, sizeof(_dev->bus), _dev);
1704 virtio_ccw_device_realize(_dev, errp);
1705 }
1706
1707 static int virtio_ccw_busdev_exit(DeviceState *dev)
1708 {
1709 VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev;
1710 VirtIOCCWDeviceClass *_info = VIRTIO_CCW_DEVICE_GET_CLASS(dev);
1711
1712 return _info->exit(_dev);
1713 }
1714
1715 static void virtio_ccw_busdev_unplug(HotplugHandler *hotplug_dev,
1716 DeviceState *dev, Error **errp)
1717 {
1718 VirtioCcwDevice *_dev = to_virtio_ccw_dev_fast(dev);
1719
1720 virtio_ccw_stop_ioeventfd(_dev);
1721 }
1722
1723 static void virtio_ccw_device_class_init(ObjectClass *klass, void *data)
1724 {
1725 DeviceClass *dc = DEVICE_CLASS(klass);
1726 CCWDeviceClass *k = CCW_DEVICE_CLASS(dc);
1727
1728 k->unplug = virtio_ccw_busdev_unplug;
1729 dc->realize = virtio_ccw_busdev_realize;
1730 dc->exit = virtio_ccw_busdev_exit;
1731 dc->bus_type = TYPE_VIRTUAL_CSS_BUS;
1732 }
1733
1734 static const TypeInfo virtio_ccw_device_info = {
1735 .name = TYPE_VIRTIO_CCW_DEVICE,
1736 .parent = TYPE_CCW_DEVICE,
1737 .instance_size = sizeof(VirtioCcwDevice),
1738 .class_init = virtio_ccw_device_class_init,
1739 .class_size = sizeof(VirtIOCCWDeviceClass),
1740 .abstract = true,
1741 };
1742
1743 /* virtio-ccw-bus */
1744
1745 static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size,
1746 VirtioCcwDevice *dev)
1747 {
1748 DeviceState *qdev = DEVICE(dev);
1749 char virtio_bus_name[] = "virtio-bus";
1750
1751 qbus_create_inplace(bus, bus_size, TYPE_VIRTIO_CCW_BUS,
1752 qdev, virtio_bus_name);
1753 }
1754
1755 static void virtio_ccw_bus_class_init(ObjectClass *klass, void *data)
1756 {
1757 VirtioBusClass *k = VIRTIO_BUS_CLASS(klass);
1758 BusClass *bus_class = BUS_CLASS(klass);
1759
1760 bus_class->max_dev = 1;
1761 k->notify = virtio_ccw_notify;
1762 k->vmstate_change = virtio_ccw_vmstate_change;
1763 k->query_guest_notifiers = virtio_ccw_query_guest_notifiers;
1764 k->set_guest_notifiers = virtio_ccw_set_guest_notifiers;
1765 k->save_queue = virtio_ccw_save_queue;
1766 k->load_queue = virtio_ccw_load_queue;
1767 k->save_config = virtio_ccw_save_config;
1768 k->load_config = virtio_ccw_load_config;
1769 k->pre_plugged = virtio_ccw_pre_plugged;
1770 k->device_plugged = virtio_ccw_device_plugged;
1771 k->device_unplugged = virtio_ccw_device_unplugged;
1772 k->ioeventfd_enabled = virtio_ccw_ioeventfd_enabled;
1773 k->ioeventfd_assign = virtio_ccw_ioeventfd_assign;
1774 }
1775
1776 static const TypeInfo virtio_ccw_bus_info = {
1777 .name = TYPE_VIRTIO_CCW_BUS,
1778 .parent = TYPE_VIRTIO_BUS,
1779 .instance_size = sizeof(VirtioCcwBusState),
1780 .class_init = virtio_ccw_bus_class_init,
1781 };
1782
1783 #ifdef CONFIG_VIRTFS
1784 static Property virtio_ccw_9p_properties[] = {
1785 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1786 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
1787 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1788 VIRTIO_CCW_MAX_REV),
1789 DEFINE_PROP_END_OF_LIST(),
1790 };
1791
1792 static void virtio_ccw_9p_realize(VirtioCcwDevice *ccw_dev, Error **errp)
1793 {
1794 V9fsCCWState *dev = VIRTIO_9P_CCW(ccw_dev);
1795 DeviceState *vdev = DEVICE(&dev->vdev);
1796
1797 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
1798 object_property_set_bool(OBJECT(vdev), true, "realized", errp);
1799 }
1800
1801 static void virtio_ccw_9p_class_init(ObjectClass *klass, void *data)
1802 {
1803 DeviceClass *dc = DEVICE_CLASS(klass);
1804 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1805
1806 k->exit = virtio_ccw_exit;
1807 k->realize = virtio_ccw_9p_realize;
1808 dc->reset = virtio_ccw_reset;
1809 dc->props = virtio_ccw_9p_properties;
1810 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
1811 }
1812
1813 static void virtio_ccw_9p_instance_init(Object *obj)
1814 {
1815 V9fsCCWState *dev = VIRTIO_9P_CCW(obj);
1816
1817 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
1818 TYPE_VIRTIO_9P);
1819 }
1820
1821 static const TypeInfo virtio_ccw_9p_info = {
1822 .name = TYPE_VIRTIO_9P_CCW,
1823 .parent = TYPE_VIRTIO_CCW_DEVICE,
1824 .instance_size = sizeof(V9fsCCWState),
1825 .instance_init = virtio_ccw_9p_instance_init,
1826 .class_init = virtio_ccw_9p_class_init,
1827 };
1828 #endif
1829
1830 #ifdef CONFIG_VHOST_VSOCK
1831
1832 static Property vhost_vsock_ccw_properties[] = {
1833 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1834 VIRTIO_CCW_MAX_REV),
1835 DEFINE_PROP_END_OF_LIST(),
1836 };
1837
1838 static void vhost_vsock_ccw_realize(VirtioCcwDevice *ccw_dev, Error **errp)
1839 {
1840 VHostVSockCCWState *dev = VHOST_VSOCK_CCW(ccw_dev);
1841 DeviceState *vdev = DEVICE(&dev->vdev);
1842 Error *err = NULL;
1843
1844 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
1845 object_property_set_bool(OBJECT(vdev), true, "realized", &err);
1846 error_propagate(errp, err);
1847 }
1848
1849 static void vhost_vsock_ccw_class_init(ObjectClass *klass, void *data)
1850 {
1851 DeviceClass *dc = DEVICE_CLASS(klass);
1852 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1853
1854 k->realize = vhost_vsock_ccw_realize;
1855 k->exit = virtio_ccw_exit;
1856 set_bit(DEVICE_CATEGORY_MISC, dc->categories);
1857 dc->props = vhost_vsock_ccw_properties;
1858 dc->reset = virtio_ccw_reset;
1859 }
1860
1861 static void vhost_vsock_ccw_instance_init(Object *obj)
1862 {
1863 VHostVSockCCWState *dev = VHOST_VSOCK_CCW(obj);
1864
1865 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
1866 TYPE_VHOST_VSOCK);
1867 }
1868
1869 static const TypeInfo vhost_vsock_ccw_info = {
1870 .name = TYPE_VHOST_VSOCK_CCW,
1871 .parent = TYPE_VIRTIO_CCW_DEVICE,
1872 .instance_size = sizeof(VHostVSockCCWState),
1873 .instance_init = vhost_vsock_ccw_instance_init,
1874 .class_init = vhost_vsock_ccw_class_init,
1875 };
1876 #endif
1877
1878 static void virtio_ccw_register(void)
1879 {
1880 type_register_static(&virtio_ccw_bus_info);
1881 type_register_static(&virtio_ccw_device_info);
1882 type_register_static(&virtio_ccw_serial);
1883 type_register_static(&virtio_ccw_blk);
1884 type_register_static(&virtio_ccw_net);
1885 type_register_static(&virtio_ccw_balloon);
1886 type_register_static(&virtio_ccw_scsi);
1887 #ifdef CONFIG_VHOST_SCSI
1888 type_register_static(&vhost_ccw_scsi);
1889 #endif
1890 type_register_static(&virtio_ccw_rng);
1891 #ifdef CONFIG_VIRTFS
1892 type_register_static(&virtio_ccw_9p_info);
1893 #endif
1894 #ifdef CONFIG_VHOST_VSOCK
1895 type_register_static(&vhost_vsock_ccw_info);
1896 #endif
1897 type_register_static(&virtio_ccw_crypto);
1898 type_register_static(&virtio_ccw_gpu);
1899 type_register_static(&virtio_ccw_input);
1900 type_register_static(&virtio_ccw_input_hid);
1901 type_register_static(&virtio_ccw_keyboard);
1902 type_register_static(&virtio_ccw_mouse);
1903 type_register_static(&virtio_ccw_tablet);
1904 }
1905
1906 type_init(virtio_ccw_register)
AR7 emulation for QEMU