1
2
3
4
5
6
7
8
9
10
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
38static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size,
39 VirtioCcwDevice *dev);
40
41VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch)
42{
43 VirtIODevice *vdev = NULL;
44 VirtioCcwDevice *dev = sch->driver_data;
45
46 if (dev) {
47 vdev = virtio_bus_get_device(&dev->bus);
48 }
49 return vdev;
50}
51
52static void virtio_ccw_start_ioeventfd(VirtioCcwDevice *dev)
53{
54 virtio_bus_start_ioeventfd(&dev->bus);
55}
56
57static void virtio_ccw_stop_ioeventfd(VirtioCcwDevice *dev)
58{
59 virtio_bus_stop_ioeventfd(&dev->bus);
60}
61
62static bool virtio_ccw_ioeventfd_started(DeviceState *d)
63{
64 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
65
66 return dev->ioeventfd_started;
67}
68
69static void virtio_ccw_ioeventfd_set_started(DeviceState *d, bool started,
70 bool err)
71{
72 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
73
74 dev->ioeventfd_started = started;
75 if (err) {
76
77 dev->flags &= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD;
78 }
79}
80
81static bool virtio_ccw_ioeventfd_disabled(DeviceState *d)
82{
83 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
84
85 return dev->ioeventfd_disabled ||
86 !(dev->flags & VIRTIO_CCW_FLAG_USE_IOEVENTFD);
87}
88
89static void virtio_ccw_ioeventfd_set_disabled(DeviceState *d, bool disabled)
90{
91 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
92
93 dev->ioeventfd_disabled = disabled;
94}
95
96static int virtio_ccw_ioeventfd_assign(DeviceState *d, EventNotifier *notifier,
97 int n, bool assign)
98{
99 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
100 CcwDevice *ccw_dev = CCW_DEVICE(dev);
101 SubchDev *sch = ccw_dev->sch;
102 uint32_t sch_id = (css_build_subchannel_id(sch) << 16) | sch->schid;
103
104 return s390_assign_subch_ioeventfd(notifier, sch_id, n, assign);
105}
106
107
108typedef struct VqInfoBlockLegacy {
109 uint64_t queue;
110 uint32_t align;
111 uint16_t index;
112 uint16_t num;
113} QEMU_PACKED VqInfoBlockLegacy;
114
115typedef struct VqInfoBlock {
116 uint64_t desc;
117 uint32_t res0;
118 uint16_t index;
119 uint16_t num;
120 uint64_t avail;
121 uint64_t used;
122} QEMU_PACKED VqInfoBlock;
123
124typedef struct VqConfigBlock {
125 uint16_t index;
126 uint16_t num_max;
127} QEMU_PACKED VqConfigBlock;
128
129typedef struct VirtioFeatDesc {
130 uint32_t features;
131 uint8_t index;
132} QEMU_PACKED VirtioFeatDesc;
133
134typedef struct VirtioThinintInfo {
135 hwaddr summary_indicator;
136 hwaddr device_indicator;
137 uint64_t ind_bit;
138 uint8_t isc;
139} QEMU_PACKED VirtioThinintInfo;
140
141typedef struct VirtioRevInfo {
142 uint16_t revision;
143 uint16_t length;
144 uint8_t data[0];
145} QEMU_PACKED VirtioRevInfo;
146
147
148static int virtio_ccw_set_vqs(SubchDev *sch, VqInfoBlock *info,
149 VqInfoBlockLegacy *linfo)
150{
151 VirtIODevice *vdev = virtio_ccw_get_vdev(sch);
152 uint16_t index = info ? info->index : linfo->index;
153 uint16_t num = info ? info->num : linfo->num;
154 uint64_t desc = info ? info->desc : linfo->queue;
155
156 if (index >= VIRTIO_CCW_QUEUE_MAX) {
157 return -EINVAL;
158 }
159
160
161 if (linfo && desc && (linfo->align != 4096)) {
162 return -EINVAL;
163 }
164
165 if (!vdev) {
166 return -EINVAL;
167 }
168
169 if (info) {
170 virtio_queue_set_rings(vdev, index, desc, info->avail, info->used);
171 } else {
172 virtio_queue_set_addr(vdev, index, desc);
173 }
174 if (!desc) {
175 virtio_queue_set_vector(vdev, index, VIRTIO_NO_VECTOR);
176 } else {
177 if (info) {
178
179 if (virtio_queue_get_num(vdev, index) < num) {
180
181 return -EINVAL;
182 }
183 virtio_queue_set_num(vdev, index, num);
184 } else if (virtio_queue_get_num(vdev, index) > num) {
185
186 return -EINVAL;
187 }
188
189 virtio_queue_set_vector(vdev, index, index);
190 }
191
192 vdev->config_vector = VIRTIO_CCW_QUEUE_MAX;
193 return 0;
194}
195
196static void virtio_ccw_reset_virtio(VirtioCcwDevice *dev, VirtIODevice *vdev)
197{
198 CcwDevice *ccw_dev = CCW_DEVICE(dev);
199
200 virtio_ccw_stop_ioeventfd(dev);
201 virtio_reset(vdev);
202 if (dev->indicators) {
203 release_indicator(&dev->routes.adapter, dev->indicators);
204 dev->indicators = NULL;
205 }
206 if (dev->indicators2) {
207 release_indicator(&dev->routes.adapter, dev->indicators2);
208 dev->indicators2 = NULL;
209 }
210 if (dev->summary_indicator) {
211 release_indicator(&dev->routes.adapter, dev->summary_indicator);
212 dev->summary_indicator = NULL;
213 }
214 ccw_dev->sch->thinint_active = false;
215}
216
217static int virtio_ccw_handle_set_vq(SubchDev *sch, CCW1 ccw, bool check_len,
218 bool is_legacy)
219{
220 int ret;
221 VqInfoBlock info;
222 VqInfoBlockLegacy linfo;
223 size_t info_len = is_legacy ? sizeof(linfo) : sizeof(info);
224
225 if (check_len) {
226 if (ccw.count != info_len) {
227 return -EINVAL;
228 }
229 } else if (ccw.count < info_len) {
230
231 return -EINVAL;
232 }
233 if (!ccw.cda) {
234 return -EFAULT;
235 }
236 if (is_legacy) {
237 linfo.queue = address_space_ldq_be(&address_space_memory, ccw.cda,
238 MEMTXATTRS_UNSPECIFIED, NULL);
239 linfo.align = address_space_ldl_be(&address_space_memory,
240 ccw.cda + sizeof(linfo.queue),
241 MEMTXATTRS_UNSPECIFIED,
242 NULL);
243 linfo.index = address_space_lduw_be(&address_space_memory,
244 ccw.cda + sizeof(linfo.queue)
245 + sizeof(linfo.align),
246 MEMTXATTRS_UNSPECIFIED,
247 NULL);
248 linfo.num = address_space_lduw_be(&address_space_memory,
249 ccw.cda + sizeof(linfo.queue)
250 + sizeof(linfo.align)
251 + sizeof(linfo.index),
252 MEMTXATTRS_UNSPECIFIED,
253 NULL);
254 ret = virtio_ccw_set_vqs(sch, NULL, &linfo);
255 } else {
256 info.desc = address_space_ldq_be(&address_space_memory, ccw.cda,
257 MEMTXATTRS_UNSPECIFIED, NULL);
258 info.index = address_space_lduw_be(&address_space_memory,
259 ccw.cda + sizeof(info.desc)
260 + sizeof(info.res0),
261 MEMTXATTRS_UNSPECIFIED, NULL);
262 info.num = address_space_lduw_be(&address_space_memory,
263 ccw.cda + sizeof(info.desc)
264 + sizeof(info.res0)
265 + sizeof(info.index),
266 MEMTXATTRS_UNSPECIFIED, NULL);
267 info.avail = address_space_ldq_be(&address_space_memory,
268 ccw.cda + sizeof(info.desc)
269 + sizeof(info.res0)
270 + sizeof(info.index)
271 + sizeof(info.num),
272 MEMTXATTRS_UNSPECIFIED, NULL);
273 info.used = address_space_ldq_be(&address_space_memory,
274 ccw.cda + sizeof(info.desc)
275 + sizeof(info.res0)
276 + sizeof(info.index)
277 + sizeof(info.num)
278 + sizeof(info.avail),
279 MEMTXATTRS_UNSPECIFIED, NULL);
280 ret = virtio_ccw_set_vqs(sch, &info, NULL);
281 }
282 sch->curr_status.scsw.count = 0;
283 return ret;
284}
285
286static int virtio_ccw_cb(SubchDev *sch, CCW1 ccw)
287{
288 int ret;
289 VirtioRevInfo revinfo;
290 uint8_t status;
291 VirtioFeatDesc features;
292 void *config;
293 hwaddr indicators;
294 VqConfigBlock vq_config;
295 VirtioCcwDevice *dev = sch->driver_data;
296 VirtIODevice *vdev = virtio_ccw_get_vdev(sch);
297 bool check_len;
298 int len;
299 hwaddr hw_len;
300 VirtioThinintInfo *thinint;
301
302 if (!dev) {
303 return -EINVAL;
304 }
305
306 trace_virtio_ccw_interpret_ccw(sch->cssid, sch->ssid, sch->schid,
307 ccw.cmd_code);
308 check_len = !((ccw.flags & CCW_FLAG_SLI) && !(ccw.flags & CCW_FLAG_DC));
309
310
311 switch (ccw.cmd_code) {
312 case CCW_CMD_SET_VQ:
313 ret = virtio_ccw_handle_set_vq(sch, ccw, check_len, dev->revision < 1);
314 break;
315 case CCW_CMD_VDEV_RESET:
316 virtio_ccw_reset_virtio(dev, vdev);
317 ret = 0;
318 break;
319 case CCW_CMD_READ_FEAT:
320 if (check_len) {
321 if (ccw.count != sizeof(features)) {
322 ret = -EINVAL;
323 break;
324 }
325 } else if (ccw.count < sizeof(features)) {
326
327 ret = -EINVAL;
328 break;
329 }
330 if (!ccw.cda) {
331 ret = -EFAULT;
332 } else {
333 features.index = address_space_ldub(&address_space_memory,
334 ccw.cda
335 + sizeof(features.features),
336 MEMTXATTRS_UNSPECIFIED,
337 NULL);
338 if (features.index == 0) {
339 if (dev->revision >= 1) {
340
341 features.features = (uint32_t)
342 (vdev->host_features & ~VIRTIO_LEGACY_FEATURES);
343 } else {
344 features.features = (uint32_t)vdev->host_features;
345 }
346 } else if ((features.index == 1) && (dev->revision >= 1)) {
347
348
349
350
351 features.features = (uint32_t)(vdev->host_features >> 32);
352 } else {
353
354 features.features = 0;
355 }
356 address_space_stl_le(&address_space_memory, ccw.cda,
357 features.features, MEMTXATTRS_UNSPECIFIED,
358 NULL);
359 sch->curr_status.scsw.count = ccw.count - sizeof(features);
360 ret = 0;
361 }
362 break;
363 case CCW_CMD_WRITE_FEAT:
364 if (check_len) {
365 if (ccw.count != sizeof(features)) {
366 ret = -EINVAL;
367 break;
368 }
369 } else if (ccw.count < sizeof(features)) {
370
371 ret = -EINVAL;
372 break;
373 }
374 if (!ccw.cda) {
375 ret = -EFAULT;
376 } else {
377 features.index = address_space_ldub(&address_space_memory,
378 ccw.cda
379 + sizeof(features.features),
380 MEMTXATTRS_UNSPECIFIED,
381 NULL);
382 features.features = address_space_ldl_le(&address_space_memory,
383 ccw.cda,
384 MEMTXATTRS_UNSPECIFIED,
385 NULL);
386 if (features.index == 0) {
387 virtio_set_features(vdev,
388 (vdev->guest_features & 0xffffffff00000000ULL) |
389 features.features);
390 } else if ((features.index == 1) && (dev->revision >= 1)) {
391
392
393
394
395
396 virtio_set_features(vdev,
397 (vdev->guest_features & 0x00000000ffffffffULL) |
398 ((uint64_t)features.features << 32));
399 } else {
400
401
402
403
404 if (features.features) {
405 fprintf(stderr, "Guest bug: features[%i]=%x (expected 0)\n",
406 features.index, features.features);
407
408 }
409 }
410 sch->curr_status.scsw.count = ccw.count - sizeof(features);
411 ret = 0;
412 }
413 break;
414 case CCW_CMD_READ_CONF:
415 if (check_len) {
416 if (ccw.count > vdev->config_len) {
417 ret = -EINVAL;
418 break;
419 }
420 }
421 len = MIN(ccw.count, vdev->config_len);
422 if (!ccw.cda) {
423 ret = -EFAULT;
424 } else {
425 virtio_bus_get_vdev_config(&dev->bus, vdev->config);
426
427 cpu_physical_memory_write(ccw.cda, vdev->config, len);
428 sch->curr_status.scsw.count = ccw.count - len;
429 ret = 0;
430 }
431 break;
432 case CCW_CMD_WRITE_CONF:
433 if (check_len) {
434 if (ccw.count > vdev->config_len) {
435 ret = -EINVAL;
436 break;
437 }
438 }
439 len = MIN(ccw.count, vdev->config_len);
440 hw_len = len;
441 if (!ccw.cda) {
442 ret = -EFAULT;
443 } else {
444 config = cpu_physical_memory_map(ccw.cda, &hw_len, 0);
445 if (!config) {
446 ret = -EFAULT;
447 } else {
448 len = hw_len;
449
450 memcpy(vdev->config, config, len);
451 cpu_physical_memory_unmap(config, hw_len, 0, hw_len);
452 virtio_bus_set_vdev_config(&dev->bus, vdev->config);
453 sch->curr_status.scsw.count = ccw.count - len;
454 ret = 0;
455 }
456 }
457 break;
458 case CCW_CMD_WRITE_STATUS:
459 if (check_len) {
460 if (ccw.count != sizeof(status)) {
461 ret = -EINVAL;
462 break;
463 }
464 } else if (ccw.count < sizeof(status)) {
465
466 ret = -EINVAL;
467 break;
468 }
469 if (!ccw.cda) {
470 ret = -EFAULT;
471 } else {
472 status = address_space_ldub(&address_space_memory, ccw.cda,
473 MEMTXATTRS_UNSPECIFIED, NULL);
474 if (!(status & VIRTIO_CONFIG_S_DRIVER_OK)) {
475 virtio_ccw_stop_ioeventfd(dev);
476 }
477 if (virtio_set_status(vdev, status) == 0) {
478 if (vdev->status == 0) {
479 virtio_ccw_reset_virtio(dev, vdev);
480 }
481 if (status & VIRTIO_CONFIG_S_DRIVER_OK) {
482 virtio_ccw_start_ioeventfd(dev);
483 }
484 sch->curr_status.scsw.count = ccw.count - sizeof(status);
485 ret = 0;
486 } else {
487
488 ret = -ENOSYS;
489 }
490 }
491 break;
492 case CCW_CMD_SET_IND:
493 if (check_len) {
494 if (ccw.count != sizeof(indicators)) {
495 ret = -EINVAL;
496 break;
497 }
498 } else if (ccw.count < sizeof(indicators)) {
499
500 ret = -EINVAL;
501 break;
502 }
503 if (sch->thinint_active) {
504
505 ret = -ENOSYS;
506 break;
507 }
508 if (!ccw.cda) {
509 ret = -EFAULT;
510 } else {
511 indicators = address_space_ldq_be(&address_space_memory, ccw.cda,
512 MEMTXATTRS_UNSPECIFIED, NULL);
513 dev->indicators = get_indicator(indicators, sizeof(uint64_t));
514 sch->curr_status.scsw.count = ccw.count - sizeof(indicators);
515 ret = 0;
516 }
517 break;
518 case CCW_CMD_SET_CONF_IND:
519 if (check_len) {
520 if (ccw.count != sizeof(indicators)) {
521 ret = -EINVAL;
522 break;
523 }
524 } else if (ccw.count < sizeof(indicators)) {
525
526 ret = -EINVAL;
527 break;
528 }
529 if (!ccw.cda) {
530 ret = -EFAULT;
531 } else {
532 indicators = address_space_ldq_be(&address_space_memory, ccw.cda,
533 MEMTXATTRS_UNSPECIFIED, NULL);
534 dev->indicators2 = get_indicator(indicators, sizeof(uint64_t));
535 sch->curr_status.scsw.count = ccw.count - sizeof(indicators);
536 ret = 0;
537 }
538 break;
539 case CCW_CMD_READ_VQ_CONF:
540 if (check_len) {
541 if (ccw.count != sizeof(vq_config)) {
542 ret = -EINVAL;
543 break;
544 }
545 } else if (ccw.count < sizeof(vq_config)) {
546
547 ret = -EINVAL;
548 break;
549 }
550 if (!ccw.cda) {
551 ret = -EFAULT;
552 } else {
553 vq_config.index = address_space_lduw_be(&address_space_memory,
554 ccw.cda,
555 MEMTXATTRS_UNSPECIFIED,
556 NULL);
557 if (vq_config.index >= VIRTIO_CCW_QUEUE_MAX) {
558 ret = -EINVAL;
559 break;
560 }
561 vq_config.num_max = virtio_queue_get_num(vdev,
562 vq_config.index);
563 address_space_stw_be(&address_space_memory,
564 ccw.cda + sizeof(vq_config.index),
565 vq_config.num_max,
566 MEMTXATTRS_UNSPECIFIED,
567 NULL);
568 sch->curr_status.scsw.count = ccw.count - sizeof(vq_config);
569 ret = 0;
570 }
571 break;
572 case CCW_CMD_SET_IND_ADAPTER:
573 if (check_len) {
574 if (ccw.count != sizeof(*thinint)) {
575 ret = -EINVAL;
576 break;
577 }
578 } else if (ccw.count < sizeof(*thinint)) {
579
580 ret = -EINVAL;
581 break;
582 }
583 len = sizeof(*thinint);
584 hw_len = len;
585 if (!ccw.cda) {
586 ret = -EFAULT;
587 } else if (dev->indicators && !sch->thinint_active) {
588
589 ret = -ENOSYS;
590 } else {
591 thinint = cpu_physical_memory_map(ccw.cda, &hw_len, 0);
592 if (!thinint) {
593 ret = -EFAULT;
594 } else {
595 uint64_t ind_bit = ldq_be_p(&thinint->ind_bit);
596
597 len = hw_len;
598 dev->summary_indicator =
599 get_indicator(ldq_be_p(&thinint->summary_indicator),
600 sizeof(uint8_t));
601 dev->indicators =
602 get_indicator(ldq_be_p(&thinint->device_indicator),
603 ind_bit / 8 + 1);
604 dev->thinint_isc = thinint->isc;
605 dev->routes.adapter.ind_offset = ind_bit;
606 dev->routes.adapter.summary_offset = 7;
607 cpu_physical_memory_unmap(thinint, hw_len, 0, hw_len);
608 ret = css_register_io_adapter(CSS_IO_ADAPTER_VIRTIO,
609 dev->thinint_isc, true, false,
610 &dev->routes.adapter.adapter_id);
611 assert(ret == 0);
612 sch->thinint_active = ((dev->indicators != NULL) &&
613 (dev->summary_indicator != NULL));
614 sch->curr_status.scsw.count = ccw.count - len;
615 ret = 0;
616 }
617 }
618 break;
619 case CCW_CMD_SET_VIRTIO_REV:
620 len = sizeof(revinfo);
621 if (ccw.count < len) {
622 ret = -EINVAL;
623 break;
624 }
625 if (!ccw.cda) {
626 ret = -EFAULT;
627 break;
628 }
629 revinfo.revision =
630 address_space_lduw_be(&address_space_memory, ccw.cda,
631 MEMTXATTRS_UNSPECIFIED, NULL);
632 revinfo.length =
633 address_space_lduw_be(&address_space_memory,
634 ccw.cda + sizeof(revinfo.revision),
635 MEMTXATTRS_UNSPECIFIED, NULL);
636 if (ccw.count < len + revinfo.length ||
637 (check_len && ccw.count > len + revinfo.length)) {
638 ret = -EINVAL;
639 break;
640 }
641
642
643
644
645 if (dev->revision >= 0 ||
646 revinfo.revision > virtio_ccw_rev_max(dev)) {
647 ret = -ENOSYS;
648 break;
649 }
650 ret = 0;
651 dev->revision = revinfo.revision;
652 break;
653 default:
654 ret = -ENOSYS;
655 break;
656 }
657 return ret;
658}
659
660static void virtio_sch_disable_cb(SubchDev *sch)
661{
662 VirtioCcwDevice *dev = sch->driver_data;
663
664 dev->revision = -1;
665}
666
667static void virtio_ccw_device_realize(VirtioCcwDevice *dev, Error **errp)
668{
669 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_GET_CLASS(dev);
670 CcwDevice *ccw_dev = CCW_DEVICE(dev);
671 SubchDev *sch = css_create_virtual_sch(ccw_dev->bus_id, errp);
672 Error *err = NULL;
673
674 if (!sch) {
675 return;
676 }
677
678 sch->driver_data = dev;
679 sch->ccw_cb = virtio_ccw_cb;
680 sch->disable_cb = virtio_sch_disable_cb;
681 sch->id.reserved = 0xff;
682 sch->id.cu_type = VIRTIO_CCW_CU_TYPE;
683 ccw_dev->sch = sch;
684 dev->indicators = NULL;
685 dev->revision = -1;
686 css_sch_build_virtual_schib(sch, 0, VIRTIO_CCW_CHPID_TYPE);
687
688 trace_virtio_ccw_new_device(
689 sch->cssid, sch->ssid, sch->schid, sch->devno,
690 ccw_dev->bus_id.valid ? "user-configured" : "auto-configured");
691
692 if (k->realize) {
693 k->realize(dev, &err);
694 }
695 if (err) {
696 error_propagate(errp, err);
697 css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL);
698 ccw_dev->sch = NULL;
699 g_free(sch);
700 }
701}
702
703static int virtio_ccw_exit(VirtioCcwDevice *dev)
704{
705 CcwDevice *ccw_dev = CCW_DEVICE(dev);
706 SubchDev *sch = ccw_dev->sch;
707
708 if (sch) {
709 css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL);
710 g_free(sch);
711 }
712 if (dev->indicators) {
713 release_indicator(&dev->routes.adapter, dev->indicators);
714 dev->indicators = NULL;
715 }
716 return 0;
717}
718
719static void virtio_ccw_net_realize(VirtioCcwDevice *ccw_dev, Error **errp)
720{
721 DeviceState *qdev = DEVICE(ccw_dev);
722 VirtIONetCcw *dev = VIRTIO_NET_CCW(ccw_dev);
723 DeviceState *vdev = DEVICE(&dev->vdev);
724
725 virtio_net_set_netclient_name(&dev->vdev, qdev->id,
726 object_get_typename(OBJECT(qdev)));
727 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
728 object_property_set_bool(OBJECT(vdev), true, "realized", errp);
729}
730
731static void virtio_ccw_net_instance_init(Object *obj)
732{
733 VirtIONetCcw *dev = VIRTIO_NET_CCW(obj);
734
735 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
736 TYPE_VIRTIO_NET);
737 object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
738 "bootindex", &error_abort);
739}
740
741static void virtio_ccw_blk_realize(VirtioCcwDevice *ccw_dev, Error **errp)
742{
743 VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(ccw_dev);
744 DeviceState *vdev = DEVICE(&dev->vdev);
745
746 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
747 object_property_set_bool(OBJECT(vdev), true, "realized", errp);
748}
749
750static void virtio_ccw_blk_instance_init(Object *obj)
751{
752 VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(obj);
753
754 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
755 TYPE_VIRTIO_BLK);
756 object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev),"iothread",
757 &error_abort);
758 object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
759 "bootindex", &error_abort);
760}
761
762static void virtio_ccw_serial_realize(VirtioCcwDevice *ccw_dev, Error **errp)
763{
764 VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(ccw_dev);
765 DeviceState *vdev = DEVICE(&dev->vdev);
766 DeviceState *proxy = DEVICE(ccw_dev);
767 char *bus_name;
768
769
770
771
772
773 if (proxy->id) {
774 bus_name = g_strdup_printf("%s.0", proxy->id);
775 virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
776 g_free(bus_name);
777 }
778
779 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
780 object_property_set_bool(OBJECT(vdev), true, "realized", errp);
781}
782
783
784static void virtio_ccw_serial_instance_init(Object *obj)
785{
786 VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(obj);
787
788 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
789 TYPE_VIRTIO_SERIAL);
790}
791
792static void virtio_ccw_balloon_realize(VirtioCcwDevice *ccw_dev, Error **errp)
793{
794 VirtIOBalloonCcw *dev = VIRTIO_BALLOON_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
801static void virtio_ccw_balloon_instance_init(Object *obj)
802{
803 VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(obj);
804
805 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
806 TYPE_VIRTIO_BALLOON);
807 object_property_add_alias(obj, "guest-stats", OBJECT(&dev->vdev),
808 "guest-stats", &error_abort);
809 object_property_add_alias(obj, "guest-stats-polling-interval",
810 OBJECT(&dev->vdev),
811 "guest-stats-polling-interval", &error_abort);
812}
813
814static void virtio_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp)
815{
816 VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(ccw_dev);
817 DeviceState *vdev = DEVICE(&dev->vdev);
818 DeviceState *qdev = DEVICE(ccw_dev);
819 char *bus_name;
820
821
822
823
824
825 if (qdev->id) {
826 bus_name = g_strdup_printf("%s.0", qdev->id);
827 virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
828 g_free(bus_name);
829 }
830
831 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
832 object_property_set_bool(OBJECT(vdev), true, "realized", errp);
833}
834
835static void virtio_ccw_scsi_instance_init(Object *obj)
836{
837 VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(obj);
838
839 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
840 TYPE_VIRTIO_SCSI);
841 object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev), "iothread",
842 &error_abort);
843}
844
845#ifdef CONFIG_VHOST_SCSI
846static void vhost_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp)
847{
848 VHostSCSICcw *dev = VHOST_SCSI_CCW(ccw_dev);
849 DeviceState *vdev = DEVICE(&dev->vdev);
850
851 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
852 object_property_set_bool(OBJECT(vdev), true, "realized", errp);
853}
854
855static void vhost_ccw_scsi_instance_init(Object *obj)
856{
857 VHostSCSICcw *dev = VHOST_SCSI_CCW(obj);
858
859 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
860 TYPE_VHOST_SCSI);
861}
862#endif
863
864static void virtio_ccw_rng_realize(VirtioCcwDevice *ccw_dev, Error **errp)
865{
866 VirtIORNGCcw *dev = VIRTIO_RNG_CCW(ccw_dev);
867 DeviceState *vdev = DEVICE(&dev->vdev);
868 Error *err = NULL;
869
870 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
871 object_property_set_bool(OBJECT(vdev), true, "realized", &err);
872 if (err) {
873 error_propagate(errp, err);
874 return;
875 }
876
877 object_property_set_link(OBJECT(dev),
878 OBJECT(dev->vdev.conf.rng), "rng",
879 NULL);
880}
881
882
883
884
885static inline VirtioCcwDevice *to_virtio_ccw_dev_fast(DeviceState *d)
886{
887 CcwDevice *ccw_dev = to_ccw_dev_fast(d);
888
889 return container_of(ccw_dev, VirtioCcwDevice, parent_obj);
890}
891
892static uint8_t virtio_set_ind_atomic(SubchDev *sch, uint64_t ind_loc,
893 uint8_t to_be_set)
894{
895 uint8_t ind_old, ind_new;
896 hwaddr len = 1;
897 uint8_t *ind_addr;
898
899 ind_addr = cpu_physical_memory_map(ind_loc, &len, 1);
900 if (!ind_addr) {
901 error_report("%s(%x.%x.%04x): unable to access indicator",
902 __func__, sch->cssid, sch->ssid, sch->schid);
903 return -1;
904 }
905 do {
906 ind_old = *ind_addr;
907 ind_new = ind_old | to_be_set;
908 } while (atomic_cmpxchg(ind_addr, ind_old, ind_new) != ind_old);
909 trace_virtio_ccw_set_ind(ind_loc, ind_old, ind_new);
910 cpu_physical_memory_unmap(ind_addr, len, 1, len);
911
912 return ind_old;
913}
914
915static void virtio_ccw_notify(DeviceState *d, uint16_t vector)
916{
917 VirtioCcwDevice *dev = to_virtio_ccw_dev_fast(d);
918 CcwDevice *ccw_dev = to_ccw_dev_fast(d);
919 SubchDev *sch = ccw_dev->sch;
920 uint64_t indicators;
921
922
923 if (vector >= VIRTIO_CCW_QUEUE_MAX + 64) {
924 return;
925 }
926
927 if (vector < VIRTIO_CCW_QUEUE_MAX) {
928 if (!dev->indicators) {
929 return;
930 }
931 if (sch->thinint_active) {
932
933
934
935
936
937
938 uint64_t ind_bit = dev->routes.adapter.ind_offset;
939
940 virtio_set_ind_atomic(sch, dev->indicators->addr +
941 (ind_bit + vector) / 8,
942 0x80 >> ((ind_bit + vector) % 8));
943 if (!virtio_set_ind_atomic(sch, dev->summary_indicator->addr,
944 0x01)) {
945 css_adapter_interrupt(dev->thinint_isc);
946 }
947 } else {
948 indicators = address_space_ldq(&address_space_memory,
949 dev->indicators->addr,
950 MEMTXATTRS_UNSPECIFIED,
951 NULL);
952 indicators |= 1ULL << vector;
953 address_space_stq(&address_space_memory, dev->indicators->addr,
954 indicators, MEMTXATTRS_UNSPECIFIED, NULL);
955 css_conditional_io_interrupt(sch);
956 }
957 } else {
958 if (!dev->indicators2) {
959 return;
960 }
961 vector = 0;
962 indicators = address_space_ldq(&address_space_memory,
963 dev->indicators2->addr,
964 MEMTXATTRS_UNSPECIFIED,
965 NULL);
966 indicators |= 1ULL << vector;
967 address_space_stq(&address_space_memory, dev->indicators2->addr,
968 indicators, MEMTXATTRS_UNSPECIFIED, NULL);
969 css_conditional_io_interrupt(sch);
970 }
971}
972
973static void virtio_ccw_reset(DeviceState *d)
974{
975 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
976 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
977 CcwDevice *ccw_dev = CCW_DEVICE(d);
978
979 virtio_ccw_reset_virtio(dev, vdev);
980 css_reset_sch(ccw_dev->sch);
981}
982
983static void virtio_ccw_vmstate_change(DeviceState *d, bool running)
984{
985 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
986
987 if (running) {
988 virtio_ccw_start_ioeventfd(dev);
989 } else {
990 virtio_ccw_stop_ioeventfd(dev);
991 }
992}
993
994static bool virtio_ccw_query_guest_notifiers(DeviceState *d)
995{
996 CcwDevice *dev = CCW_DEVICE(d);
997
998 return !!(dev->sch->curr_status.pmcw.flags & PMCW_FLAGS_MASK_ENA);
999}
1000
1001static int virtio_ccw_get_mappings(VirtioCcwDevice *dev)
1002{
1003 int r;
1004 CcwDevice *ccw_dev = CCW_DEVICE(dev);
1005
1006 if (!ccw_dev->sch->thinint_active) {
1007 return -EINVAL;
1008 }
1009
1010 r = map_indicator(&dev->routes.adapter, dev->summary_indicator);
1011 if (r) {
1012 return r;
1013 }
1014 r = map_indicator(&dev->routes.adapter, dev->indicators);
1015 if (r) {
1016 return r;
1017 }
1018 dev->routes.adapter.summary_addr = dev->summary_indicator->map;
1019 dev->routes.adapter.ind_addr = dev->indicators->map;
1020
1021 return 0;
1022}
1023
1024static int virtio_ccw_setup_irqroutes(VirtioCcwDevice *dev, int nvqs)
1025{
1026 int i;
1027 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1028 int ret;
1029 S390FLICState *fs = s390_get_flic();
1030 S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs);
1031
1032 ret = virtio_ccw_get_mappings(dev);
1033 if (ret) {
1034 return ret;
1035 }
1036 for (i = 0; i < nvqs; i++) {
1037 if (!virtio_queue_get_num(vdev, i)) {
1038 break;
1039 }
1040 }
1041 dev->routes.num_routes = i;
1042 return fsc->add_adapter_routes(fs, &dev->routes);
1043}
1044
1045static void virtio_ccw_release_irqroutes(VirtioCcwDevice *dev, int nvqs)
1046{
1047 S390FLICState *fs = s390_get_flic();
1048 S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs);
1049
1050 fsc->release_adapter_routes(fs, &dev->routes);
1051}
1052
1053static int virtio_ccw_add_irqfd(VirtioCcwDevice *dev, int n)
1054{
1055 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1056 VirtQueue *vq = virtio_get_queue(vdev, n);
1057 EventNotifier *notifier = virtio_queue_get_guest_notifier(vq);
1058
1059 return kvm_irqchip_add_irqfd_notifier_gsi(kvm_state, notifier, NULL,
1060 dev->routes.gsi[n]);
1061}
1062
1063static void virtio_ccw_remove_irqfd(VirtioCcwDevice *dev, int n)
1064{
1065 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1066 VirtQueue *vq = virtio_get_queue(vdev, n);
1067 EventNotifier *notifier = virtio_queue_get_guest_notifier(vq);
1068 int ret;
1069
1070 ret = kvm_irqchip_remove_irqfd_notifier_gsi(kvm_state, notifier,
1071 dev->routes.gsi[n]);
1072 assert(ret == 0);
1073}
1074
1075static int virtio_ccw_set_guest_notifier(VirtioCcwDevice *dev, int n,
1076 bool assign, bool with_irqfd)
1077{
1078 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1079 VirtQueue *vq = virtio_get_queue(vdev, n);
1080 EventNotifier *notifier = virtio_queue_get_guest_notifier(vq);
1081 VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
1082
1083 if (assign) {
1084 int r = event_notifier_init(notifier, 0);
1085
1086 if (r < 0) {
1087 return r;
1088 }
1089 virtio_queue_set_guest_notifier_fd_handler(vq, true, with_irqfd);
1090 if (with_irqfd) {
1091 r = virtio_ccw_add_irqfd(dev, n);
1092 if (r) {
1093 virtio_queue_set_guest_notifier_fd_handler(vq, false,
1094 with_irqfd);
1095 return r;
1096 }
1097 }
1098
1099
1100
1101
1102 if (k->guest_notifier_mask) {
1103 k->guest_notifier_mask(vdev, n, false);
1104 }
1105
1106 if (k->guest_notifier_pending &&
1107 k->guest_notifier_pending(vdev, n)) {
1108 event_notifier_set(notifier);
1109 }
1110 } else {
1111 if (k->guest_notifier_mask) {
1112 k->guest_notifier_mask(vdev, n, true);
1113 }
1114 if (with_irqfd) {
1115 virtio_ccw_remove_irqfd(dev, n);
1116 }
1117 virtio_queue_set_guest_notifier_fd_handler(vq, false, with_irqfd);
1118 event_notifier_cleanup(notifier);
1119 }
1120 return 0;
1121}
1122
1123static int virtio_ccw_set_guest_notifiers(DeviceState *d, int nvqs,
1124 bool assigned)
1125{
1126 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1127 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1128 CcwDevice *ccw_dev = CCW_DEVICE(d);
1129 bool with_irqfd = ccw_dev->sch->thinint_active && kvm_irqfds_enabled();
1130 int r, n;
1131
1132 if (with_irqfd && assigned) {
1133
1134 r = virtio_ccw_setup_irqroutes(dev, nvqs);
1135 if (r < 0) {
1136 goto irqroute_error;
1137 }
1138 }
1139 for (n = 0; n < nvqs; n++) {
1140 if (!virtio_queue_get_num(vdev, n)) {
1141 break;
1142 }
1143 r = virtio_ccw_set_guest_notifier(dev, n, assigned, with_irqfd);
1144 if (r < 0) {
1145 goto assign_error;
1146 }
1147 }
1148 if (with_irqfd && !assigned) {
1149
1150 virtio_ccw_release_irqroutes(dev, nvqs);
1151 }
1152 return 0;
1153
1154assign_error:
1155 while (--n >= 0) {
1156 virtio_ccw_set_guest_notifier(dev, n, !assigned, false);
1157 }
1158irqroute_error:
1159 if (with_irqfd && assigned) {
1160 virtio_ccw_release_irqroutes(dev, nvqs);
1161 }
1162 return r;
1163}
1164
1165static void virtio_ccw_save_queue(DeviceState *d, int n, QEMUFile *f)
1166{
1167 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1168 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1169
1170 qemu_put_be16(f, virtio_queue_vector(vdev, n));
1171}
1172
1173static int virtio_ccw_load_queue(DeviceState *d, int n, QEMUFile *f)
1174{
1175 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1176 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1177 uint16_t vector;
1178
1179 qemu_get_be16s(f, &vector);
1180 virtio_queue_set_vector(vdev, n , vector);
1181
1182 return 0;
1183}
1184
1185static void virtio_ccw_save_config(DeviceState *d, QEMUFile *f)
1186{
1187 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1188 CcwDevice *ccw_dev = CCW_DEVICE(d);
1189 SubchDev *s = ccw_dev->sch;
1190 VirtIODevice *vdev = virtio_ccw_get_vdev(s);
1191
1192 subch_device_save(s, f);
1193 if (dev->indicators != NULL) {
1194 qemu_put_be32(f, dev->indicators->len);
1195 qemu_put_be64(f, dev->indicators->addr);
1196 } else {
1197 qemu_put_be32(f, 0);
1198 qemu_put_be64(f, 0UL);
1199 }
1200 if (dev->indicators2 != NULL) {
1201 qemu_put_be32(f, dev->indicators2->len);
1202 qemu_put_be64(f, dev->indicators2->addr);
1203 } else {
1204 qemu_put_be32(f, 0);
1205 qemu_put_be64(f, 0UL);
1206 }
1207 if (dev->summary_indicator != NULL) {
1208 qemu_put_be32(f, dev->summary_indicator->len);
1209 qemu_put_be64(f, dev->summary_indicator->addr);
1210 } else {
1211 qemu_put_be32(f, 0);
1212 qemu_put_be64(f, 0UL);
1213 }
1214 qemu_put_be16(f, vdev->config_vector);
1215 qemu_put_be64(f, dev->routes.adapter.ind_offset);
1216 qemu_put_byte(f, dev->thinint_isc);
1217 qemu_put_be32(f, dev->revision);
1218}
1219
1220static int virtio_ccw_load_config(DeviceState *d, QEMUFile *f)
1221{
1222 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1223 CcwDevice *ccw_dev = CCW_DEVICE(d);
1224 SubchDev *s = ccw_dev->sch;
1225 VirtIODevice *vdev = virtio_ccw_get_vdev(s);
1226 int len;
1227
1228 s->driver_data = dev;
1229 subch_device_load(s, f);
1230 len = qemu_get_be32(f);
1231 if (len != 0) {
1232 dev->indicators = get_indicator(qemu_get_be64(f), len);
1233 } else {
1234 qemu_get_be64(f);
1235 dev->indicators = NULL;
1236 }
1237 len = qemu_get_be32(f);
1238 if (len != 0) {
1239 dev->indicators2 = get_indicator(qemu_get_be64(f), len);
1240 } else {
1241 qemu_get_be64(f);
1242 dev->indicators2 = NULL;
1243 }
1244 len = qemu_get_be32(f);
1245 if (len != 0) {
1246 dev->summary_indicator = get_indicator(qemu_get_be64(f), len);
1247 } else {
1248 qemu_get_be64(f);
1249 dev->summary_indicator = NULL;
1250 }
1251 qemu_get_be16s(f, &vdev->config_vector);
1252 dev->routes.adapter.ind_offset = qemu_get_be64(f);
1253 dev->thinint_isc = qemu_get_byte(f);
1254 dev->revision = qemu_get_be32(f);
1255 if (s->thinint_active) {
1256 return css_register_io_adapter(CSS_IO_ADAPTER_VIRTIO,
1257 dev->thinint_isc, true, false,
1258 &dev->routes.adapter.adapter_id);
1259 }
1260
1261 return 0;
1262}
1263
1264
1265static void virtio_ccw_device_plugged(DeviceState *d, Error **errp)
1266{
1267 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1268 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1269 CcwDevice *ccw_dev = CCW_DEVICE(d);
1270 SubchDev *sch = ccw_dev->sch;
1271 int n = virtio_get_num_queues(vdev);
1272
1273 if (virtio_get_num_queues(vdev) > VIRTIO_CCW_QUEUE_MAX) {
1274 error_setg(errp, "The number of virtqueues %d "
1275 "exceeds ccw limit %d", n,
1276 VIRTIO_CCW_QUEUE_MAX);
1277 return;
1278 }
1279
1280 if (!kvm_eventfds_enabled()) {
1281 dev->flags &= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD;
1282 }
1283
1284 sch->id.cu_model = virtio_bus_get_vdev_id(&dev->bus);
1285
1286 if (dev->max_rev >= 1) {
1287 virtio_add_feature(&vdev->host_features, VIRTIO_F_VERSION_1);
1288 }
1289
1290 css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid,
1291 d->hotplugged, 1);
1292}
1293
1294static void virtio_ccw_post_plugged(DeviceState *d, Error **errp)
1295{
1296 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1297 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1298
1299 if (!virtio_host_has_feature(vdev, VIRTIO_F_VERSION_1)) {
1300
1301 dev->max_rev = 0;
1302 }
1303}
1304
1305static void virtio_ccw_device_unplugged(DeviceState *d)
1306{
1307 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1308
1309 virtio_ccw_stop_ioeventfd(dev);
1310}
1311
1312
1313static Property virtio_ccw_net_properties[] = {
1314 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
1315 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1316 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
1317 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1318 VIRTIO_CCW_MAX_REV),
1319 DEFINE_PROP_END_OF_LIST(),
1320};
1321
1322static void virtio_ccw_net_class_init(ObjectClass *klass, void *data)
1323{
1324 DeviceClass *dc = DEVICE_CLASS(klass);
1325 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1326
1327 k->realize = virtio_ccw_net_realize;
1328 k->exit = virtio_ccw_exit;
1329 dc->reset = virtio_ccw_reset;
1330 dc->props = virtio_ccw_net_properties;
1331 set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
1332}
1333
1334static const TypeInfo virtio_ccw_net = {
1335 .name = TYPE_VIRTIO_NET_CCW,
1336 .parent = TYPE_VIRTIO_CCW_DEVICE,
1337 .instance_size = sizeof(VirtIONetCcw),
1338 .instance_init = virtio_ccw_net_instance_init,
1339 .class_init = virtio_ccw_net_class_init,
1340};
1341
1342static Property virtio_ccw_blk_properties[] = {
1343 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
1344 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1345 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
1346 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1347 VIRTIO_CCW_MAX_REV),
1348 DEFINE_PROP_END_OF_LIST(),
1349};
1350
1351static void virtio_ccw_blk_class_init(ObjectClass *klass, void *data)
1352{
1353 DeviceClass *dc = DEVICE_CLASS(klass);
1354 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1355
1356 k->realize = virtio_ccw_blk_realize;
1357 k->exit = virtio_ccw_exit;
1358 dc->reset = virtio_ccw_reset;
1359 dc->props = virtio_ccw_blk_properties;
1360 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
1361}
1362
1363static const TypeInfo virtio_ccw_blk = {
1364 .name = TYPE_VIRTIO_BLK_CCW,
1365 .parent = TYPE_VIRTIO_CCW_DEVICE,
1366 .instance_size = sizeof(VirtIOBlkCcw),
1367 .instance_init = virtio_ccw_blk_instance_init,
1368 .class_init = virtio_ccw_blk_class_init,
1369};
1370
1371static Property virtio_ccw_serial_properties[] = {
1372 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
1373 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1374 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
1375 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1376 VIRTIO_CCW_MAX_REV),
1377 DEFINE_PROP_END_OF_LIST(),
1378};
1379
1380static void virtio_ccw_serial_class_init(ObjectClass *klass, void *data)
1381{
1382 DeviceClass *dc = DEVICE_CLASS(klass);
1383 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1384
1385 k->realize = virtio_ccw_serial_realize;
1386 k->exit = virtio_ccw_exit;
1387 dc->reset = virtio_ccw_reset;
1388 dc->props = virtio_ccw_serial_properties;
1389 set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
1390}
1391
1392static const TypeInfo virtio_ccw_serial = {
1393 .name = TYPE_VIRTIO_SERIAL_CCW,
1394 .parent = TYPE_VIRTIO_CCW_DEVICE,
1395 .instance_size = sizeof(VirtioSerialCcw),
1396 .instance_init = virtio_ccw_serial_instance_init,
1397 .class_init = virtio_ccw_serial_class_init,
1398};
1399
1400static Property virtio_ccw_balloon_properties[] = {
1401 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
1402 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1403 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
1404 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1405 VIRTIO_CCW_MAX_REV),
1406 DEFINE_PROP_END_OF_LIST(),
1407};
1408
1409static void virtio_ccw_balloon_class_init(ObjectClass *klass, void *data)
1410{
1411 DeviceClass *dc = DEVICE_CLASS(klass);
1412 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1413
1414 k->realize = virtio_ccw_balloon_realize;
1415 k->exit = virtio_ccw_exit;
1416 dc->reset = virtio_ccw_reset;
1417 dc->props = virtio_ccw_balloon_properties;
1418 set_bit(DEVICE_CATEGORY_MISC, dc->categories);
1419}
1420
1421static const TypeInfo virtio_ccw_balloon = {
1422 .name = TYPE_VIRTIO_BALLOON_CCW,
1423 .parent = TYPE_VIRTIO_CCW_DEVICE,
1424 .instance_size = sizeof(VirtIOBalloonCcw),
1425 .instance_init = virtio_ccw_balloon_instance_init,
1426 .class_init = virtio_ccw_balloon_class_init,
1427};
1428
1429static Property virtio_ccw_scsi_properties[] = {
1430 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
1431 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1432 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
1433 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1434 VIRTIO_CCW_MAX_REV),
1435 DEFINE_PROP_END_OF_LIST(),
1436};
1437
1438static void virtio_ccw_scsi_class_init(ObjectClass *klass, void *data)
1439{
1440 DeviceClass *dc = DEVICE_CLASS(klass);
1441 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1442
1443 k->realize = virtio_ccw_scsi_realize;
1444 k->exit = virtio_ccw_exit;
1445 dc->reset = virtio_ccw_reset;
1446 dc->props = virtio_ccw_scsi_properties;
1447 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
1448}
1449
1450static const TypeInfo virtio_ccw_scsi = {
1451 .name = TYPE_VIRTIO_SCSI_CCW,
1452 .parent = TYPE_VIRTIO_CCW_DEVICE,
1453 .instance_size = sizeof(VirtIOSCSICcw),
1454 .instance_init = virtio_ccw_scsi_instance_init,
1455 .class_init = virtio_ccw_scsi_class_init,
1456};
1457
1458#ifdef CONFIG_VHOST_SCSI
1459static Property vhost_ccw_scsi_properties[] = {
1460 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
1461 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1462 VIRTIO_CCW_MAX_REV),
1463 DEFINE_PROP_END_OF_LIST(),
1464};
1465
1466static void vhost_ccw_scsi_class_init(ObjectClass *klass, void *data)
1467{
1468 DeviceClass *dc = DEVICE_CLASS(klass);
1469 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1470
1471 k->realize = vhost_ccw_scsi_realize;
1472 k->exit = virtio_ccw_exit;
1473 dc->reset = virtio_ccw_reset;
1474 dc->props = vhost_ccw_scsi_properties;
1475 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
1476}
1477
1478static const TypeInfo vhost_ccw_scsi = {
1479 .name = TYPE_VHOST_SCSI_CCW,
1480 .parent = TYPE_VIRTIO_CCW_DEVICE,
1481 .instance_size = sizeof(VHostSCSICcw),
1482 .instance_init = vhost_ccw_scsi_instance_init,
1483 .class_init = vhost_ccw_scsi_class_init,
1484};
1485#endif
1486
1487static void virtio_ccw_rng_instance_init(Object *obj)
1488{
1489 VirtIORNGCcw *dev = VIRTIO_RNG_CCW(obj);
1490
1491 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
1492 TYPE_VIRTIO_RNG);
1493 object_property_add_alias(obj, "rng", OBJECT(&dev->vdev),
1494 "rng", &error_abort);
1495}
1496
1497static Property virtio_ccw_rng_properties[] = {
1498 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
1499 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1500 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
1501 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1502 VIRTIO_CCW_MAX_REV),
1503 DEFINE_PROP_END_OF_LIST(),
1504};
1505
1506static void virtio_ccw_rng_class_init(ObjectClass *klass, void *data)
1507{
1508 DeviceClass *dc = DEVICE_CLASS(klass);
1509 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1510
1511 k->realize = virtio_ccw_rng_realize;
1512 k->exit = virtio_ccw_exit;
1513 dc->reset = virtio_ccw_reset;
1514 dc->props = virtio_ccw_rng_properties;
1515 set_bit(DEVICE_CATEGORY_MISC, dc->categories);
1516}
1517
1518static const TypeInfo virtio_ccw_rng = {
1519 .name = TYPE_VIRTIO_RNG_CCW,
1520 .parent = TYPE_VIRTIO_CCW_DEVICE,
1521 .instance_size = sizeof(VirtIORNGCcw),
1522 .instance_init = virtio_ccw_rng_instance_init,
1523 .class_init = virtio_ccw_rng_class_init,
1524};
1525
1526static void virtio_ccw_busdev_realize(DeviceState *dev, Error **errp)
1527{
1528 VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev;
1529
1530 virtio_ccw_bus_new(&_dev->bus, sizeof(_dev->bus), _dev);
1531 virtio_ccw_device_realize(_dev, errp);
1532}
1533
1534static int virtio_ccw_busdev_exit(DeviceState *dev)
1535{
1536 VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev;
1537 VirtIOCCWDeviceClass *_info = VIRTIO_CCW_DEVICE_GET_CLASS(dev);
1538
1539 return _info->exit(_dev);
1540}
1541
1542static void virtio_ccw_busdev_unplug(HotplugHandler *hotplug_dev,
1543 DeviceState *dev, Error **errp)
1544{
1545 VirtioCcwDevice *_dev = to_virtio_ccw_dev_fast(dev);
1546
1547 virtio_ccw_stop_ioeventfd(_dev);
1548}
1549
1550static void virtio_ccw_device_class_init(ObjectClass *klass, void *data)
1551{
1552 DeviceClass *dc = DEVICE_CLASS(klass);
1553 CCWDeviceClass *k = CCW_DEVICE_CLASS(dc);
1554
1555 k->unplug = virtio_ccw_busdev_unplug;
1556 dc->realize = virtio_ccw_busdev_realize;
1557 dc->exit = virtio_ccw_busdev_exit;
1558 dc->bus_type = TYPE_VIRTUAL_CSS_BUS;
1559}
1560
1561static const TypeInfo virtio_ccw_device_info = {
1562 .name = TYPE_VIRTIO_CCW_DEVICE,
1563 .parent = TYPE_CCW_DEVICE,
1564 .instance_size = sizeof(VirtioCcwDevice),
1565 .class_init = virtio_ccw_device_class_init,
1566 .class_size = sizeof(VirtIOCCWDeviceClass),
1567 .abstract = true,
1568};
1569
1570
1571
1572static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size,
1573 VirtioCcwDevice *dev)
1574{
1575 DeviceState *qdev = DEVICE(dev);
1576 char virtio_bus_name[] = "virtio-bus";
1577
1578 qbus_create_inplace(bus, bus_size, TYPE_VIRTIO_CCW_BUS,
1579 qdev, virtio_bus_name);
1580}
1581
1582static void virtio_ccw_bus_class_init(ObjectClass *klass, void *data)
1583{
1584 VirtioBusClass *k = VIRTIO_BUS_CLASS(klass);
1585 BusClass *bus_class = BUS_CLASS(klass);
1586
1587 bus_class->max_dev = 1;
1588 k->notify = virtio_ccw_notify;
1589 k->vmstate_change = virtio_ccw_vmstate_change;
1590 k->query_guest_notifiers = virtio_ccw_query_guest_notifiers;
1591 k->set_guest_notifiers = virtio_ccw_set_guest_notifiers;
1592 k->save_queue = virtio_ccw_save_queue;
1593 k->load_queue = virtio_ccw_load_queue;
1594 k->save_config = virtio_ccw_save_config;
1595 k->load_config = virtio_ccw_load_config;
1596 k->device_plugged = virtio_ccw_device_plugged;
1597 k->post_plugged = virtio_ccw_post_plugged;
1598 k->device_unplugged = virtio_ccw_device_unplugged;
1599 k->ioeventfd_started = virtio_ccw_ioeventfd_started;
1600 k->ioeventfd_set_started = virtio_ccw_ioeventfd_set_started;
1601 k->ioeventfd_disabled = virtio_ccw_ioeventfd_disabled;
1602 k->ioeventfd_set_disabled = virtio_ccw_ioeventfd_set_disabled;
1603 k->ioeventfd_assign = virtio_ccw_ioeventfd_assign;
1604}
1605
1606static const TypeInfo virtio_ccw_bus_info = {
1607 .name = TYPE_VIRTIO_CCW_BUS,
1608 .parent = TYPE_VIRTIO_BUS,
1609 .instance_size = sizeof(VirtioCcwBusState),
1610 .class_init = virtio_ccw_bus_class_init,
1611};
1612
1613#ifdef CONFIG_VIRTFS
1614static Property virtio_ccw_9p_properties[] = {
1615 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
1616 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1617 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
1618 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1619 VIRTIO_CCW_MAX_REV),
1620 DEFINE_PROP_END_OF_LIST(),
1621};
1622
1623static void virtio_ccw_9p_realize(VirtioCcwDevice *ccw_dev, Error **errp)
1624{
1625 V9fsCCWState *dev = VIRTIO_9P_CCW(ccw_dev);
1626 DeviceState *vdev = DEVICE(&dev->vdev);
1627
1628 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
1629 object_property_set_bool(OBJECT(vdev), true, "realized", errp);
1630}
1631
1632static void virtio_ccw_9p_class_init(ObjectClass *klass, void *data)
1633{
1634 DeviceClass *dc = DEVICE_CLASS(klass);
1635 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1636
1637 k->exit = virtio_ccw_exit;
1638 k->realize = virtio_ccw_9p_realize;
1639 dc->reset = virtio_ccw_reset;
1640 dc->props = virtio_ccw_9p_properties;
1641 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
1642}
1643
1644static void virtio_ccw_9p_instance_init(Object *obj)
1645{
1646 V9fsCCWState *dev = VIRTIO_9P_CCW(obj);
1647
1648 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
1649 TYPE_VIRTIO_9P);
1650}
1651
1652static const TypeInfo virtio_ccw_9p_info = {
1653 .name = TYPE_VIRTIO_9P_CCW,
1654 .parent = TYPE_VIRTIO_CCW_DEVICE,
1655 .instance_size = sizeof(V9fsCCWState),
1656 .instance_init = virtio_ccw_9p_instance_init,
1657 .class_init = virtio_ccw_9p_class_init,
1658};
1659#endif
1660
1661static void virtio_ccw_register(void)
1662{
1663 type_register_static(&virtio_ccw_bus_info);
1664 type_register_static(&virtio_ccw_device_info);
1665 type_register_static(&virtio_ccw_serial);
1666 type_register_static(&virtio_ccw_blk);
1667 type_register_static(&virtio_ccw_net);
1668 type_register_static(&virtio_ccw_balloon);
1669 type_register_static(&virtio_ccw_scsi);
1670#ifdef CONFIG_VHOST_SCSI
1671 type_register_static(&vhost_ccw_scsi);
1672#endif
1673 type_register_static(&virtio_ccw_rng);
1674#ifdef CONFIG_VIRTFS
1675 type_register_static(&virtio_ccw_9p_info);
1676#endif
1677}
1678
1679type_init(virtio_ccw_register)
1680
