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virtio-ccw: add virtio-crypto-ccw device
[mirror_qemu.git] / hw / s390x / virtio-ccw.c
CommitLineData
a5cf2bb4
CH		 1/*
2 * virtio ccw target implementation
3 *
de6a9218 4 * Copyright 2012,2015 IBM Corp.
a5cf2bb4 5 * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
de6a9218 6 * Pierre Morel <pmorel@linux.vnet.ibm.com>
a5cf2bb4
CH		 7 *
8 * This work is licensed under the terms of the GNU GPL, version 2 or (at
9 * your option) any later version. See the COPYING file in the top-level
10 * directory.
11 */
12
9615495a 13#include "qemu/osdep.h"
da34e65c 14#include "qapi/error.h"
a5cf2bb4 15#include "hw/hw.h"
4be74634 16#include "sysemu/block-backend.h"
a5cf2bb4
CH		 17#include "sysemu/blockdev.h"
18#include "sysemu/sysemu.h"
bd3f16ac 19#include "sysemu/kvm.h"
a5cf2bb4 20#include "net/net.h"
0d09e41a
PB		 21#include "hw/virtio/virtio.h"
22#include "hw/virtio/virtio-serial.h"
23#include "hw/virtio/virtio-net.h"
a5cf2bb4
CH		 24#include "hw/sysbus.h"
25#include "qemu/bitops.h"
d49b6836 26#include "qemu/error-report.h"
c42767f2 27#include "hw/virtio/virtio-access.h"
0d09e41a 28#include "hw/virtio/virtio-bus.h"
d426d9fb
CH		 29#include "hw/s390x/adapter.h"
30#include "hw/s390x/s390_flic.h"
a5cf2bb4 31
bd3f16ac
PB		 32#include "hw/s390x/ioinst.h"
33#include "hw/s390x/css.h"
a5cf2bb4
CH		 34#include "virtio-ccw.h"
35#include "trace.h"
dd70bd0d 36#include "hw/s390x/css-bridge.h"
a5cf2bb4 37
1bf4d7aa
AF		 38static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size,
39 VirtioCcwDevice *dev);
d51fcfac 40
a5cf2bb4
CH		 41VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch)
42{
43 VirtIODevice *vdev = NULL;
f24a6840 44 VirtioCcwDevice *dev = sch->driver_data;
a5cf2bb4 45
f24a6840
PB		 46 if (dev) {
47 vdev = virtio_bus_get_device(&dev->bus);
a5cf2bb4
CH		 48 }
49 return vdev;
50}
51
7c55f68a 52static void virtio_ccw_start_ioeventfd(VirtioCcwDevice *dev)
b4436a0b 53{
7c55f68a
CH		 54 virtio_bus_start_ioeventfd(&dev->bus);
55}
b4436a0b 56
7c55f68a
CH		 57static void virtio_ccw_stop_ioeventfd(VirtioCcwDevice *dev)
58{
59 virtio_bus_stop_ioeventfd(&dev->bus);
b4436a0b
CH		 60}
61
8e93cef1 62static bool virtio_ccw_ioeventfd_enabled(DeviceState *d)
b4436a0b 63{
7c55f68a 64 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
b4436a0b 65
8e93cef1 66 return (dev->flags & VIRTIO_CCW_FLAG_USE_IOEVENTFD) != 0;
7c55f68a
CH		 67}
68
69static int virtio_ccw_ioeventfd_assign(DeviceState *d, EventNotifier *notifier,
70 int n, bool assign)
71{
72 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
b804e8a6
JL		 73 CcwDevice *ccw_dev = CCW_DEVICE(dev);
74 SubchDev *sch = ccw_dev->sch;
7c55f68a
CH		 75 uint32_t sch_id = (css_build_subchannel_id(sch) << 16) | sch->schid;
76
77 return s390_assign_subch_ioeventfd(notifier, sch_id, n, assign);
b4436a0b
CH		 78}
79
a5cf2bb4 80/* Communication blocks used by several channel commands. */
0db87e0d 81typedef struct VqInfoBlockLegacy {
a5cf2bb4
CH		 82 uint64_t queue;
83 uint32_t align;
84 uint16_t index;
85 uint16_t num;
0db87e0d
CH		 86} QEMU_PACKED VqInfoBlockLegacy;
87
88typedef struct VqInfoBlock {
89 uint64_t desc;
90 uint32_t res0;
91 uint16_t index;
92 uint16_t num;
93 uint64_t avail;
94 uint64_t used;
a5cf2bb4
CH		 95} QEMU_PACKED VqInfoBlock;
96
97typedef struct VqConfigBlock {
98 uint16_t index;
99 uint16_t num_max;
100} QEMU_PACKED VqConfigBlock;
101
102typedef struct VirtioFeatDesc {
103 uint32_t features;
104 uint8_t index;
105} QEMU_PACKED VirtioFeatDesc;
106
7e749462
CH		 107typedef struct VirtioThinintInfo {
108 hwaddr summary_indicator;
109 hwaddr device_indicator;
110 uint64_t ind_bit;
111 uint8_t isc;
112} QEMU_PACKED VirtioThinintInfo;
113
c42767f2
TH		 114typedef struct VirtioRevInfo {
115 uint16_t revision;
116 uint16_t length;
117 uint8_t data[0];
118} QEMU_PACKED VirtioRevInfo;
119
a5cf2bb4 120/* Specify where the virtqueues for the subchannel are in guest memory. */
0db87e0d
CH		 121static int virtio_ccw_set_vqs(SubchDev *sch, VqInfoBlock *info,
122 VqInfoBlockLegacy *linfo)
a5cf2bb4 123{
f24a6840 124 VirtIODevice *vdev = virtio_ccw_get_vdev(sch);
0db87e0d
CH		 125 uint16_t index = info ? info->index : linfo->index;
126 uint16_t num = info ? info->num : linfo->num;
127 uint64_t desc = info ? info->desc : linfo->queue;
a5cf2bb4 128
8dfbaa6a 129 if (index >= VIRTIO_CCW_QUEUE_MAX) {
a5cf2bb4
CH		 130 return -EINVAL;
131 }
132
133 /* Current code in virtio.c relies on 4K alignment. */
0db87e0d 134 if (linfo && desc && (linfo->align != 4096)) {
a5cf2bb4
CH		 135 return -EINVAL;
136 }
137
f24a6840 138 if (!vdev) {
a5cf2bb4
CH		 139 return -EINVAL;
140 }
141
0db87e0d
CH		 142 if (info) {
143 virtio_queue_set_rings(vdev, index, desc, info->avail, info->used);
144 } else {
145 virtio_queue_set_addr(vdev, index, desc);
146 }
147 if (!desc) {
955cc8c9 148 virtio_queue_set_vector(vdev, index, VIRTIO_NO_VECTOR);
a5cf2bb4 149 } else {
79cd0c80
CH		 150 if (info) {
151 /* virtio-1 allows changing the ring size. */
8c797e75 152 if (virtio_queue_get_max_num(vdev, index) < num) {
79cd0c80
CH		 153 /* Fail if we exceed the maximum number. */
154 return -EINVAL;
155 }
156 virtio_queue_set_num(vdev, index, num);
157 } else if (virtio_queue_get_num(vdev, index) > num) {
158 /* Fail if we don't have a big enough queue. */
a5cf2bb4
CH		 159 return -EINVAL;
160 }
79cd0c80 161 /* We ignore possible increased num for legacy for compatibility. */
f24a6840 162 virtio_queue_set_vector(vdev, index, index);
a5cf2bb4
CH		 163 }
164 /* tell notify handler in case of config change */
8dfbaa6a 165 vdev->config_vector = VIRTIO_CCW_QUEUE_MAX;
a5cf2bb4
CH		 166 return 0;
167}
168
fa8b0ca5
CH		 169static void virtio_ccw_reset_virtio(VirtioCcwDevice *dev, VirtIODevice *vdev)
170{
b804e8a6
JL		 171 CcwDevice *ccw_dev = CCW_DEVICE(dev);
172
fa8b0ca5
CH		 173 virtio_ccw_stop_ioeventfd(dev);
174 virtio_reset(vdev);
175 if (dev->indicators) {
176 release_indicator(&dev->routes.adapter, dev->indicators);
177 dev->indicators = NULL;
178 }
179 if (dev->indicators2) {
180 release_indicator(&dev->routes.adapter, dev->indicators2);
181 dev->indicators2 = NULL;
182 }
183 if (dev->summary_indicator) {
184 release_indicator(&dev->routes.adapter, dev->summary_indicator);
185 dev->summary_indicator = NULL;
186 }
b804e8a6 187 ccw_dev->sch->thinint_active = false;
fa8b0ca5
CH		 188}
189
0db87e0d
CH		 190static int virtio_ccw_handle_set_vq(SubchDev *sch, CCW1 ccw, bool check_len,
191 bool is_legacy)
a5cf2bb4
CH		 192{
193 int ret;
194 VqInfoBlock info;
0db87e0d
CH		 195 VqInfoBlockLegacy linfo;
196 size_t info_len = is_legacy ? sizeof(linfo) : sizeof(info);
197
198 if (check_len) {
199 if (ccw.count != info_len) {
200 return -EINVAL;
201 }
202 } else if (ccw.count < info_len) {
203 /* Can't execute command. */
204 return -EINVAL;
205 }
206 if (!ccw.cda) {
207 return -EFAULT;
208 }
209 if (is_legacy) {
210 linfo.queue = address_space_ldq_be(&address_space_memory, ccw.cda,
211 MEMTXATTRS_UNSPECIFIED, NULL);
212 linfo.align = address_space_ldl_be(&address_space_memory,
213 ccw.cda + sizeof(linfo.queue),
214 MEMTXATTRS_UNSPECIFIED,
215 NULL);
216 linfo.index = address_space_lduw_be(&address_space_memory,
217 ccw.cda + sizeof(linfo.queue)
218 + sizeof(linfo.align),
219 MEMTXATTRS_UNSPECIFIED,
220 NULL);
221 linfo.num = address_space_lduw_be(&address_space_memory,
222 ccw.cda + sizeof(linfo.queue)
223 + sizeof(linfo.align)
224 + sizeof(linfo.index),
225 MEMTXATTRS_UNSPECIFIED,
226 NULL);
227 ret = virtio_ccw_set_vqs(sch, NULL, &linfo);
228 } else {
229 info.desc = address_space_ldq_be(&address_space_memory, ccw.cda,
230 MEMTXATTRS_UNSPECIFIED, NULL);
231 info.index = address_space_lduw_be(&address_space_memory,
232 ccw.cda + sizeof(info.desc)
233 + sizeof(info.res0),
234 MEMTXATTRS_UNSPECIFIED, NULL);
235 info.num = address_space_lduw_be(&address_space_memory,
236 ccw.cda + sizeof(info.desc)
237 + sizeof(info.res0)
238 + sizeof(info.index),
239 MEMTXATTRS_UNSPECIFIED, NULL);
240 info.avail = address_space_ldq_be(&address_space_memory,
241 ccw.cda + sizeof(info.desc)
242 + sizeof(info.res0)
243 + sizeof(info.index)
244 + sizeof(info.num),
245 MEMTXATTRS_UNSPECIFIED, NULL);
246 info.used = address_space_ldq_be(&address_space_memory,
247 ccw.cda + sizeof(info.desc)
248 + sizeof(info.res0)
249 + sizeof(info.index)
250 + sizeof(info.num)
251 + sizeof(info.avail),
252 MEMTXATTRS_UNSPECIFIED, NULL);
253 ret = virtio_ccw_set_vqs(sch, &info, NULL);
254 }
255 sch->curr_status.scsw.count = 0;
256 return ret;
257}
258
259static int virtio_ccw_cb(SubchDev *sch, CCW1 ccw)
260{
261 int ret;
c42767f2 262 VirtioRevInfo revinfo;
a5cf2bb4
CH		 263 uint8_t status;
264 VirtioFeatDesc features;
265 void *config;
266 hwaddr indicators;
267 VqConfigBlock vq_config;
268 VirtioCcwDevice *dev = sch->driver_data;
f24a6840 269 VirtIODevice *vdev = virtio_ccw_get_vdev(sch);
a5cf2bb4
CH		 270 bool check_len;
271 int len;
272 hwaddr hw_len;
7e749462 273 VirtioThinintInfo *thinint;
a5cf2bb4
CH		 274
275 if (!dev) {
276 return -EINVAL;
277 }
278
279 trace_virtio_ccw_interpret_ccw(sch->cssid, sch->ssid, sch->schid,
280 ccw.cmd_code);
281 check_len = !((ccw.flags & CCW_FLAG_SLI) && !(ccw.flags & CCW_FLAG_DC));
282
47e13dfd
HP		 283 if (dev->force_revision_1 && dev->revision < 0 &&
284 ccw.cmd_code != CCW_CMD_SET_VIRTIO_REV) {
285 /*
286 * virtio-1 drivers must start with negotiating to a revision >= 1,
287 * so post a command reject for all other commands
288 */
289 return -ENOSYS;
290 }
291
a5cf2bb4
CH		 292 /* Look at the command. */
293 switch (ccw.cmd_code) {
294 case CCW_CMD_SET_VQ:
0db87e0d 295 ret = virtio_ccw_handle_set_vq(sch, ccw, check_len, dev->revision < 1);
a5cf2bb4
CH		 296 break;
297 case CCW_CMD_VDEV_RESET:
fa8b0ca5 298 virtio_ccw_reset_virtio(dev, vdev);
a5cf2bb4
CH		 299 ret = 0;
300 break;
301 case CCW_CMD_READ_FEAT:
302 if (check_len) {
303 if (ccw.count != sizeof(features)) {
304 ret = -EINVAL;
305 break;
306 }
307 } else if (ccw.count < sizeof(features)) {
308 /* Can't execute command. */
309 ret = -EINVAL;
310 break;
311 }
312 if (!ccw.cda) {
313 ret = -EFAULT;
314 } else {
9b706dbb
MT		 315 VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev);
316
42874d3a
PM		 317 features.index = address_space_ldub(&address_space_memory,
318 ccw.cda
319 + sizeof(features.features),
320 MEMTXATTRS_UNSPECIFIED,
321 NULL);
6b8f1020 322 if (features.index == 0) {
542571d5
CH		 323 if (dev->revision >= 1) {
324 /* Don't offer legacy features for modern devices. */
325 features.features = (uint32_t)
9b706dbb 326 (vdev->host_features & ~vdc->legacy_features);
542571d5
CH		 327 } else {
328 features.features = (uint32_t)vdev->host_features;
329 }
b4f8f9df 330 } else if ((features.index == 1) && (dev->revision >= 1)) {
c42767f2 331 /*
b4f8f9df
CH		 332 * Only offer feature bits beyond 31 if the guest has
333 * negotiated at least revision 1.
c42767f2 334 */
b4f8f9df 335 features.features = (uint32_t)(vdev->host_features >> 32);
a5cf2bb4
CH		 336 } else {
337 /* Return zeroes if the guest supports more feature bits. */
338 features.features = 0;
339 }
42874d3a
PM		 340 address_space_stl_le(&address_space_memory, ccw.cda,
341 features.features, MEMTXATTRS_UNSPECIFIED,
342 NULL);
a5cf2bb4
CH		 343 sch->curr_status.scsw.count = ccw.count - sizeof(features);
344 ret = 0;
345 }
346 break;
347 case CCW_CMD_WRITE_FEAT:
348 if (check_len) {
349 if (ccw.count != sizeof(features)) {
350 ret = -EINVAL;
351 break;
352 }
353 } else if (ccw.count < sizeof(features)) {
354 /* Can't execute command. */
355 ret = -EINVAL;
356 break;
357 }
358 if (!ccw.cda) {
359 ret = -EFAULT;
360 } else {
42874d3a
PM		 361 features.index = address_space_ldub(&address_space_memory,
362 ccw.cda
363 + sizeof(features.features),
364 MEMTXATTRS_UNSPECIFIED,
365 NULL);
366 features.features = address_space_ldl_le(&address_space_memory,
367 ccw.cda,
368 MEMTXATTRS_UNSPECIFIED,
369 NULL);
6b8f1020 370 if (features.index == 0) {
c42767f2
TH		 371 virtio_set_features(vdev,
372 (vdev->guest_features & 0xffffffff00000000ULL) |
373 features.features);
b4f8f9df 374 } else if ((features.index == 1) && (dev->revision >= 1)) {
c42767f2 375 /*
b4f8f9df
CH		 376 * If the guest did not negotiate at least revision 1,
377 * we did not offer it any feature bits beyond 31. Such a
378 * guest passing us any bit here is therefore buggy.
c42767f2 379 */
c42767f2
TH		 380 virtio_set_features(vdev,
381 (vdev->guest_features & 0x00000000ffffffffULL) |
382 ((uint64_t)features.features << 32));
a5cf2bb4
CH		 383 } else {
384 /*
385 * If the guest supports more feature bits, assert that it
386 * passes us zeroes for those we don't support.
387 */
388 if (features.features) {
389 fprintf(stderr, "Guest bug: features[%i]=%x (expected 0)\n",
390 features.index, features.features);
391 /* XXX: do a unit check here? */
392 }
393 }
394 sch->curr_status.scsw.count = ccw.count - sizeof(features);
395 ret = 0;
396 }
397 break;
398 case CCW_CMD_READ_CONF:
399 if (check_len) {
f24a6840 400 if (ccw.count > vdev->config_len) {
a5cf2bb4
CH		 401 ret = -EINVAL;
402 break;
403 }
404 }
f24a6840 405 len = MIN(ccw.count, vdev->config_len);
a5cf2bb4
CH		 406 if (!ccw.cda) {
407 ret = -EFAULT;
408 } else {
f24a6840 409 virtio_bus_get_vdev_config(&dev->bus, vdev->config);
a5cf2bb4 410 /* XXX config space endianness */
f24a6840 411 cpu_physical_memory_write(ccw.cda, vdev->config, len);
a5cf2bb4
CH		 412 sch->curr_status.scsw.count = ccw.count - len;
413 ret = 0;
414 }
415 break;
416 case CCW_CMD_WRITE_CONF:
417 if (check_len) {
f24a6840 418 if (ccw.count > vdev->config_len) {
a5cf2bb4
CH		 419 ret = -EINVAL;
420 break;
421 }
422 }
f24a6840 423 len = MIN(ccw.count, vdev->config_len);
a5cf2bb4
CH		 424 hw_len = len;
425 if (!ccw.cda) {
426 ret = -EFAULT;
427 } else {
428 config = cpu_physical_memory_map(ccw.cda, &hw_len, 0);
429 if (!config) {
430 ret = -EFAULT;
431 } else {
432 len = hw_len;
433 /* XXX config space endianness */
f24a6840 434 memcpy(vdev->config, config, len);
a5cf2bb4 435 cpu_physical_memory_unmap(config, hw_len, 0, hw_len);
f24a6840 436 virtio_bus_set_vdev_config(&dev->bus, vdev->config);
a5cf2bb4
CH		 437 sch->curr_status.scsw.count = ccw.count - len;
438 ret = 0;
439 }
440 }
441 break;
e32652f7
PM		 442 case CCW_CMD_READ_STATUS:
443 if (check_len) {
444 if (ccw.count != sizeof(status)) {
445 ret = -EINVAL;
446 break;
447 }
448 } else if (ccw.count < sizeof(status)) {
449 /* Can't execute command. */
450 ret = -EINVAL;
451 break;
452 }
453 if (!ccw.cda) {
454 ret = -EFAULT;
455 } else {
456 address_space_stb(&address_space_memory, ccw.cda, vdev->status,
457 MEMTXATTRS_UNSPECIFIED, NULL);
458 sch->curr_status.scsw.count = ccw.count - sizeof(vdev->status);;
459 ret = 0;
460 }
461 break;
a5cf2bb4
CH		 462 case CCW_CMD_WRITE_STATUS:
463 if (check_len) {
464 if (ccw.count != sizeof(status)) {
465 ret = -EINVAL;
466 break;
467 }
468 } else if (ccw.count < sizeof(status)) {
469 /* Can't execute command. */
470 ret = -EINVAL;
471 break;
472 }
473 if (!ccw.cda) {
474 ret = -EFAULT;
475 } else {
42874d3a
PM		 476 status = address_space_ldub(&address_space_memory, ccw.cda,
477 MEMTXATTRS_UNSPECIFIED, NULL);
b4436a0b
CH		 478 if (!(status & VIRTIO_CONFIG_S_DRIVER_OK)) {
479 virtio_ccw_stop_ioeventfd(dev);
480 }
0b352fd6
CH		 481 if (virtio_set_status(vdev, status) == 0) {
482 if (vdev->status == 0) {
fa8b0ca5 483 virtio_ccw_reset_virtio(dev, vdev);
0b352fd6
CH		 484 }
485 if (status & VIRTIO_CONFIG_S_DRIVER_OK) {
486 virtio_ccw_start_ioeventfd(dev);
487 }
488 sch->curr_status.scsw.count = ccw.count - sizeof(status);
489 ret = 0;
490 } else {
491 /* Trigger a command reject. */
492 ret = -ENOSYS;
b4436a0b 493 }
a5cf2bb4
CH		 494 }
495 break;
496 case CCW_CMD_SET_IND:
497 if (check_len) {
498 if (ccw.count != sizeof(indicators)) {
499 ret = -EINVAL;
500 break;
501 }
502 } else if (ccw.count < sizeof(indicators)) {
503 /* Can't execute command. */
504 ret = -EINVAL;
505 break;
506 }
7e749462
CH		 507 if (sch->thinint_active) {
508 /* Trigger a command reject. */
509 ret = -ENOSYS;
510 break;
511 }
d1db1fa8 512 if (!ccw.cda) {
a5cf2bb4
CH		 513 ret = -EFAULT;
514 } else {
42874d3a
PM		 515 indicators = address_space_ldq_be(&address_space_memory, ccw.cda,
516 MEMTXATTRS_UNSPECIFIED, NULL);
7bca3892 517 dev->indicators = get_indicator(indicators, sizeof(uint64_t));
a5cf2bb4
CH		 518 sch->curr_status.scsw.count = ccw.count - sizeof(indicators);
519 ret = 0;
520 }
521 break;
522 case CCW_CMD_SET_CONF_IND:
523 if (check_len) {
524 if (ccw.count != sizeof(indicators)) {
525 ret = -EINVAL;
526 break;
527 }
528 } else if (ccw.count < sizeof(indicators)) {
529 /* Can't execute command. */
530 ret = -EINVAL;
531 break;
532 }
d1db1fa8 533 if (!ccw.cda) {
a5cf2bb4
CH		 534 ret = -EFAULT;
535 } else {
42874d3a
PM		 536 indicators = address_space_ldq_be(&address_space_memory, ccw.cda,
537 MEMTXATTRS_UNSPECIFIED, NULL);
7bca3892 538 dev->indicators2 = get_indicator(indicators, sizeof(uint64_t));
a5cf2bb4
CH		 539 sch->curr_status.scsw.count = ccw.count - sizeof(indicators);
540 ret = 0;
541 }
542 break;
543 case CCW_CMD_READ_VQ_CONF:
544 if (check_len) {
545 if (ccw.count != sizeof(vq_config)) {
546 ret = -EINVAL;
547 break;
548 }
549 } else if (ccw.count < sizeof(vq_config)) {
550 /* Can't execute command. */
551 ret = -EINVAL;
552 break;
553 }
554 if (!ccw.cda) {
555 ret = -EFAULT;
556 } else {
42874d3a
PM		 557 vq_config.index = address_space_lduw_be(&address_space_memory,
558 ccw.cda,
559 MEMTXATTRS_UNSPECIFIED,
560 NULL);
8dfbaa6a 561 if (vq_config.index >= VIRTIO_CCW_QUEUE_MAX) {
d03a3630
CH		 562 ret = -EINVAL;
563 break;
564 }
f24a6840 565 vq_config.num_max = virtio_queue_get_num(vdev,
a5cf2bb4 566 vq_config.index);
42874d3a
PM		 567 address_space_stw_be(&address_space_memory,
568 ccw.cda + sizeof(vq_config.index),
569 vq_config.num_max,
570 MEMTXATTRS_UNSPECIFIED,
571 NULL);
a5cf2bb4
CH		 572 sch->curr_status.scsw.count = ccw.count - sizeof(vq_config);
573 ret = 0;
574 }
575 break;
7e749462
CH		 576 case CCW_CMD_SET_IND_ADAPTER:
577 if (check_len) {
578 if (ccw.count != sizeof(*thinint)) {
579 ret = -EINVAL;
580 break;
581 }
582 } else if (ccw.count < sizeof(*thinint)) {
583 /* Can't execute command. */
584 ret = -EINVAL;
585 break;
586 }
587 len = sizeof(*thinint);
588 hw_len = len;
589 if (!ccw.cda) {
590 ret = -EFAULT;
591 } else if (dev->indicators && !sch->thinint_active) {
592 /* Trigger a command reject. */
593 ret = -ENOSYS;
594 } else {
595 thinint = cpu_physical_memory_map(ccw.cda, &hw_len, 0);
596 if (!thinint) {
597 ret = -EFAULT;
598 } else {
7d45285f
CH		 599 uint64_t ind_bit = ldq_be_p(&thinint->ind_bit);
600
7e749462 601 len = hw_len;
7bca3892 602 dev->summary_indicator =
7d45285f
CH		 603 get_indicator(ldq_be_p(&thinint->summary_indicator),
604 sizeof(uint8_t));
605 dev->indicators =
606 get_indicator(ldq_be_p(&thinint->device_indicator),
607 ind_bit / 8 + 1);
7e749462 608 dev->thinint_isc = thinint->isc;
7d45285f 609 dev->routes.adapter.ind_offset = ind_bit;
d426d9fb 610 dev->routes.adapter.summary_offset = 7;
7e749462 611 cpu_physical_memory_unmap(thinint, hw_len, 0, hw_len);
03cf077a
CH		 612 ret = css_register_io_adapter(CSS_IO_ADAPTER_VIRTIO,
613 dev->thinint_isc, true, false,
d426d9fb 614 &dev->routes.adapter.adapter_id);
03cf077a 615 assert(ret == 0);
7bca3892
CH		 616 sch->thinint_active = ((dev->indicators != NULL) &&
617 (dev->summary_indicator != NULL));
7e749462
CH		 618 sch->curr_status.scsw.count = ccw.count - len;
619 ret = 0;
620 }
621 }
622 break;
c42767f2
TH		 623 case CCW_CMD_SET_VIRTIO_REV:
624 len = sizeof(revinfo);
625 if (ccw.count < len) {
626 ret = -EINVAL;
627 break;
628 }
629 if (!ccw.cda) {
630 ret = -EFAULT;
631 break;
632 }
633 revinfo.revision =
634 address_space_lduw_be(&address_space_memory, ccw.cda,
635 MEMTXATTRS_UNSPECIFIED, NULL);
636 revinfo.length =
637 address_space_lduw_be(&address_space_memory,
638 ccw.cda + sizeof(revinfo.revision),
639 MEMTXATTRS_UNSPECIFIED, NULL);
640 if (ccw.count < len + revinfo.length ||
641 (check_len && ccw.count > len + revinfo.length)) {
642 ret = -EINVAL;
643 break;
644 }
645 /*
646 * Once we start to support revisions with additional data, we'll
647 * need to fetch it here. Nothing to do for now, though.
648 */
649 if (dev->revision >= 0 ||
47e13dfd
HP		 650 revinfo.revision > virtio_ccw_rev_max(dev) ||
651 (dev->force_revision_1 && !revinfo.revision)) {
c42767f2
TH		 652 ret = -ENOSYS;
653 break;
654 }
655 ret = 0;
656 dev->revision = revinfo.revision;
657 break;
a5cf2bb4 658 default:
8d034a6f 659 ret = -ENOSYS;
a5cf2bb4
CH		 660 break;
661 }
662 return ret;
663}
664
c42767f2
TH		 665static void virtio_sch_disable_cb(SubchDev *sch)
666{
667 VirtioCcwDevice *dev = sch->driver_data;
668
669 dev->revision = -1;
670}
671
1fa75523 672static void virtio_ccw_device_realize(VirtioCcwDevice *dev, Error **errp)
a5cf2bb4 673{
1fa75523 674 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_GET_CLASS(dev);
b804e8a6
JL		 675 CcwDevice *ccw_dev = CCW_DEVICE(dev);
676 SubchDev *sch = css_create_virtual_sch(ccw_dev->bus_id, errp);
cf249935 677 Error *err = NULL;
a5cf2bb4 678
cf249935
SS		 679 if (!sch) {
680 return;
a5cf2bb4 681 }
47e13dfd
HP		 682 if (!virtio_ccw_rev_max(dev) && dev->force_revision_1) {
683 error_setg(&err, "Invalid value of property max_rev "
684 "(is %d expected >= 1)", virtio_ccw_rev_max(dev));
685 error_propagate(errp, err);
686 return;
687 }
a5cf2bb4 688
cf249935 689 sch->driver_data = dev;
a5cf2bb4 690 sch->ccw_cb = virtio_ccw_cb;
c42767f2 691 sch->disable_cb = virtio_sch_disable_cb;
a5cf2bb4
CH		 692 sch->id.reserved = 0xff;
693 sch->id.cu_type = VIRTIO_CCW_CU_TYPE;
b804e8a6 694 ccw_dev->sch = sch;
cf249935 695 dev->indicators = NULL;
c42767f2 696 dev->revision = -1;
cf249935
SS		 697 css_sch_build_virtual_schib(sch, 0, VIRTIO_CCW_CHPID_TYPE);
698
699 trace_virtio_ccw_new_device(
700 sch->cssid, sch->ssid, sch->schid, sch->devno,
b804e8a6 701 ccw_dev->bus_id.valid ? "user-configured" : "auto-configured");
c42767f2 702
ca2b413c
PB		 703 if (!kvm_eventfds_enabled()) {
704 dev->flags &= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD;
705 }
706
1fa75523
CH		 707 if (k->realize) {
708 k->realize(dev, &err);
709 }
710 if (err) {
711 error_propagate(errp, err);
06e686ea 712 css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL);
b804e8a6 713 ccw_dev->sch = NULL;
cf249935 714 g_free(sch);
1fa75523 715 }
a5cf2bb4
CH		 716}
717
718static int virtio_ccw_exit(VirtioCcwDevice *dev)
719{
b804e8a6
JL		 720 CcwDevice *ccw_dev = CCW_DEVICE(dev);
721 SubchDev *sch = ccw_dev->sch;
a5cf2bb4
CH		 722
723 if (sch) {
724 css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL);
725 g_free(sch);
726 }
7bca3892 727 if (dev->indicators) {
d426d9fb 728 release_indicator(&dev->routes.adapter, dev->indicators);
7bca3892
CH		 729 dev->indicators = NULL;
730 }
a5cf2bb4
CH		 731 return 0;
732}
733
5e5ced38 734static void virtio_ccw_net_realize(VirtioCcwDevice *ccw_dev, Error **errp)
a5cf2bb4 735{
800ced8c 736 DeviceState *qdev = DEVICE(ccw_dev);
89334c8b
FK		 737 VirtIONetCcw *dev = VIRTIO_NET_CCW(ccw_dev);
738 DeviceState *vdev = DEVICE(&dev->vdev);
a5cf2bb4 739
800ced8c
FK		 740 virtio_net_set_netclient_name(&dev->vdev, qdev->id,
741 object_get_typename(OBJECT(qdev)));
89334c8b 742 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
6b62d961 743 object_property_set_bool(OBJECT(vdev), true, "realized", errp);
a5cf2bb4
CH		 744}
745
89334c8b 746static void virtio_ccw_net_instance_init(Object *obj)
a5cf2bb4 747{
89334c8b 748 VirtIONetCcw *dev = VIRTIO_NET_CCW(obj);
c8075caf
GA		 749
750 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
751 TYPE_VIRTIO_NET);
0cf63c3e
GA		 752 object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
753 "bootindex", &error_abort);
a5cf2bb4
CH		 754}
755
5e5ced38 756static void virtio_ccw_blk_realize(VirtioCcwDevice *ccw_dev, Error **errp)
a5cf2bb4 757{
3400c455
FK		 758 VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(ccw_dev);
759 DeviceState *vdev = DEVICE(&dev->vdev);
5e5ced38 760
3400c455 761 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
6b62d961 762 object_property_set_bool(OBJECT(vdev), true, "realized", errp);
a5cf2bb4
CH		 763}
764
3400c455 765static void virtio_ccw_blk_instance_init(Object *obj)
a5cf2bb4 766{
3400c455 767 VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(obj);
c8075caf
GA		 768
769 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
770 TYPE_VIRTIO_BLK);
467b3f33
SH		 771 object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev),"iothread",
772 &error_abort);
aeb98ddc
GA		 773 object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
774 "bootindex", &error_abort);
a5cf2bb4
CH		 775}
776
5e5ced38 777static void virtio_ccw_serial_realize(VirtioCcwDevice *ccw_dev, Error **errp)
a5cf2bb4 778{
6acf69cd
FK		 779 VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(ccw_dev);
780 DeviceState *vdev = DEVICE(&dev->vdev);
80270a19
FK		 781 DeviceState *proxy = DEVICE(ccw_dev);
782 char *bus_name;
783
784 /*
785 * For command line compatibility, this sets the virtio-serial-device bus
786 * name as before.
787 */
788 if (proxy->id) {
789 bus_name = g_strdup_printf("%s.0", proxy->id);
790 virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
791 g_free(bus_name);
792 }
a5cf2bb4 793
6acf69cd 794 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
6b62d961 795 object_property_set_bool(OBJECT(vdev), true, "realized", errp);
a5cf2bb4
CH		 796}
797
6acf69cd
FK		 798
799static void virtio_ccw_serial_instance_init(Object *obj)
a5cf2bb4 800{
6acf69cd 801 VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(obj);
c8075caf
GA		 802
803 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
804 TYPE_VIRTIO_SERIAL);
a5cf2bb4
CH		 805}
806
5e5ced38 807static void virtio_ccw_balloon_realize(VirtioCcwDevice *ccw_dev, Error **errp)
a5cf2bb4 808{
30bff6a0
FK		 809 VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(ccw_dev);
810 DeviceState *vdev = DEVICE(&dev->vdev);
a5cf2bb4 811
30bff6a0 812 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
6b62d961 813 object_property_set_bool(OBJECT(vdev), true, "realized", errp);
a5cf2bb4
CH		 814}
815
30bff6a0 816static void virtio_ccw_balloon_instance_init(Object *obj)
a5cf2bb4 817{
30bff6a0 818 VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(obj);
ecfa60e3 819
a6027b0f
DL		 820 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
821 TYPE_VIRTIO_BALLOON);
ecfa60e3
SZ		 822 object_property_add_alias(obj, "guest-stats", OBJECT(&dev->vdev),
823 "guest-stats", &error_abort);
824 object_property_add_alias(obj, "guest-stats-polling-interval",
825 OBJECT(&dev->vdev),
826 "guest-stats-polling-interval", &error_abort);
a5cf2bb4
CH		 827}
828
5e5ced38 829static void virtio_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp)
a5cf2bb4 830{
c908ea10
FK		 831 VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(ccw_dev);
832 DeviceState *vdev = DEVICE(&dev->vdev);
6f32a6b4
FK		 833 DeviceState *qdev = DEVICE(ccw_dev);
834 char *bus_name;
835
836 /*
837 * For command line compatibility, this sets the virtio-scsi-device bus
838 * name as before.
839 */
840 if (qdev->id) {
841 bus_name = g_strdup_printf("%s.0", qdev->id);
842 virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
843 g_free(bus_name);
844 }
a5cf2bb4 845
c908ea10 846 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
6b62d961 847 object_property_set_bool(OBJECT(vdev), true, "realized", errp);
a5cf2bb4
CH		 848}
849
c908ea10 850static void virtio_ccw_scsi_instance_init(Object *obj)
a5cf2bb4 851{
c908ea10 852 VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(obj);
c8075caf
GA		 853
854 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
855 TYPE_VIRTIO_SCSI);
19d339f1
FZ		 856 object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev), "iothread",
857 &error_abort);
a5cf2bb4
CH		 858}
859
ccf6916c 860#ifdef CONFIG_VHOST_SCSI
5e5ced38 861static void vhost_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp)
ccf6916c
PB		 862{
863 VHostSCSICcw *dev = VHOST_SCSI_CCW(ccw_dev);
864 DeviceState *vdev = DEVICE(&dev->vdev);
865
866 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
6b62d961 867 object_property_set_bool(OBJECT(vdev), true, "realized", errp);
ccf6916c
PB		 868}
869
870static void vhost_ccw_scsi_instance_init(Object *obj)
871{
872 VHostSCSICcw *dev = VHOST_SCSI_CCW(obj);
c8075caf
GA		 873
874 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
875 TYPE_VHOST_SCSI);
ccf6916c
PB		 876}
877#endif
878
5e5ced38 879static void virtio_ccw_rng_realize(VirtioCcwDevice *ccw_dev, Error **errp)
2362ecc5 880{
2db26d4c
FK		 881 VirtIORNGCcw *dev = VIRTIO_RNG_CCW(ccw_dev);
882 DeviceState *vdev = DEVICE(&dev->vdev);
5e5ced38 883 Error *err = NULL;
2362ecc5 884
2db26d4c 885 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
5e5ced38
MA		 886 object_property_set_bool(OBJECT(vdev), true, "realized", &err);
887 if (err) {
888 error_propagate(errp, err);
889 return;
2362ecc5 890 }
2362ecc5 891
2db26d4c 892 object_property_set_link(OBJECT(dev),
5b456438 893 OBJECT(dev->vdev.conf.rng), "rng",
2db26d4c 894 NULL);
2362ecc5
CH		 895}
896
d2256070
HP		 897static void virtio_ccw_crypto_realize(VirtioCcwDevice *ccw_dev, Error **errp)
898{
899 VirtIOCryptoCcw *dev = VIRTIO_CRYPTO_CCW(ccw_dev);
900 DeviceState *vdev = DEVICE(&dev->vdev);
901 Error *err = NULL;
902
903 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
904 object_property_set_bool(OBJECT(vdev), true, "realized", &err);
905 if (err) {
906 error_propagate(errp, err);
907 return;
908 }
909
910 object_property_set_link(OBJECT(vdev),
911 OBJECT(dev->vdev.conf.cryptodev), "cryptodev",
912 NULL);
913}
914
a5cf2bb4
CH		 915/* DeviceState to VirtioCcwDevice. Note: used on datapath,
916 * be careful and test performance if you change this.
917 */
918static inline VirtioCcwDevice *to_virtio_ccw_dev_fast(DeviceState *d)
919{
b804e8a6
JL		 920 CcwDevice *ccw_dev = to_ccw_dev_fast(d);
921
922 return container_of(ccw_dev, VirtioCcwDevice, parent_obj);
a5cf2bb4
CH		 923}
924
7e749462
CH		 925static uint8_t virtio_set_ind_atomic(SubchDev *sch, uint64_t ind_loc,
926 uint8_t to_be_set)
927{
928 uint8_t ind_old, ind_new;
929 hwaddr len = 1;
930 uint8_t *ind_addr;
931
932 ind_addr = cpu_physical_memory_map(ind_loc, &len, 1);
933 if (!ind_addr) {
934 error_report("%s(%x.%x.%04x): unable to access indicator",
935 __func__, sch->cssid, sch->ssid, sch->schid);
936 return -1;
937 }
938 do {
939 ind_old = *ind_addr;
940 ind_new = ind_old | to_be_set;
941 } while (atomic_cmpxchg(ind_addr, ind_old, ind_new) != ind_old);
06409bd9 942 trace_virtio_ccw_set_ind(ind_loc, ind_old, ind_new);
7e749462
CH		 943 cpu_physical_memory_unmap(ind_addr, len, 1, len);
944
945 return ind_old;
946}
947
a5cf2bb4
CH		 948static void virtio_ccw_notify(DeviceState *d, uint16_t vector)
949{
950 VirtioCcwDevice *dev = to_virtio_ccw_dev_fast(d);
b804e8a6
JL		 951 CcwDevice *ccw_dev = to_ccw_dev_fast(d);
952 SubchDev *sch = ccw_dev->sch;
a5cf2bb4
CH		 953 uint64_t indicators;
954
1789f4e3
HP		 955 /* queue indicators + secondary indicators */
956 if (vector >= VIRTIO_CCW_QUEUE_MAX + 64) {
a5cf2bb4
CH		 957 return;
958 }
959
8dfbaa6a 960 if (vector < VIRTIO_CCW_QUEUE_MAX) {
7c486976
CH		 961 if (!dev->indicators) {
962 return;
963 }
7e749462
CH		 964 if (sch->thinint_active) {
965 /*
966 * In the adapter interrupt case, indicators points to a
967 * memory area that may be (way) larger than 64 bit and
968 * ind_bit indicates the start of the indicators in a big
969 * endian notation.
970 */
d426d9fb
CH		 971 uint64_t ind_bit = dev->routes.adapter.ind_offset;
972
7bca3892 973 virtio_set_ind_atomic(sch, dev->indicators->addr +
d426d9fb
CH		 974 (ind_bit + vector) / 8,
975 0x80 >> ((ind_bit + vector) % 8));
7bca3892 976 if (!virtio_set_ind_atomic(sch, dev->summary_indicator->addr,
7e749462
CH		 977 0x01)) {
978 css_adapter_interrupt(dev->thinint_isc);
979 }
980 } else {
42874d3a
PM		 981 indicators = address_space_ldq(&address_space_memory,
982 dev->indicators->addr,
983 MEMTXATTRS_UNSPECIFIED,
984 NULL);
7e749462 985 indicators |= 1ULL << vector;
42874d3a
PM		 986 address_space_stq(&address_space_memory, dev->indicators->addr,
987 indicators, MEMTXATTRS_UNSPECIFIED, NULL);
7e749462
CH		 988 css_conditional_io_interrupt(sch);
989 }
a5cf2bb4 990 } else {
7c486976
CH		 991 if (!dev->indicators2) {
992 return;
993 }
a5cf2bb4 994 vector = 0;
42874d3a
PM		 995 indicators = address_space_ldq(&address_space_memory,
996 dev->indicators2->addr,
997 MEMTXATTRS_UNSPECIFIED,
998 NULL);
19380b1b 999 indicators |= 1ULL << vector;
42874d3a
PM		 1000 address_space_stq(&address_space_memory, dev->indicators2->addr,
1001 indicators, MEMTXATTRS_UNSPECIFIED, NULL);
7e749462 1002 css_conditional_io_interrupt(sch);
a5cf2bb4 1003 }
a5cf2bb4
CH		 1004}
1005
a5cf2bb4
CH		 1006static void virtio_ccw_reset(DeviceState *d)
1007{
1008 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
f24a6840 1009 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
b804e8a6 1010 CcwDevice *ccw_dev = CCW_DEVICE(d);
a5cf2bb4 1011
fa8b0ca5 1012 virtio_ccw_reset_virtio(dev, vdev);
b804e8a6 1013 css_reset_sch(ccw_dev->sch);
a5cf2bb4
CH		 1014}
1015
b4436a0b
CH		 1016static void virtio_ccw_vmstate_change(DeviceState *d, bool running)
1017{
1018 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1019
1020 if (running) {
1021 virtio_ccw_start_ioeventfd(dev);
1022 } else {
1023 virtio_ccw_stop_ioeventfd(dev);
1024 }
1025}
1026
320ce850
CH		 1027static bool virtio_ccw_query_guest_notifiers(DeviceState *d)
1028{
b804e8a6 1029 CcwDevice *dev = CCW_DEVICE(d);
320ce850
CH		 1030
1031 return !!(dev->sch->curr_status.pmcw.flags & PMCW_FLAGS_MASK_ENA);
1032}
1033
d426d9fb
CH		 1034static int virtio_ccw_get_mappings(VirtioCcwDevice *dev)
1035{
1036 int r;
b804e8a6 1037 CcwDevice *ccw_dev = CCW_DEVICE(dev);
d426d9fb 1038
b804e8a6 1039 if (!ccw_dev->sch->thinint_active) {
d426d9fb
CH		 1040 return -EINVAL;
1041 }
1042
1043 r = map_indicator(&dev->routes.adapter, dev->summary_indicator);
1044 if (r) {
1045 return r;
1046 }
1047 r = map_indicator(&dev->routes.adapter, dev->indicators);
1048 if (r) {
1049 return r;
1050 }
1051 dev->routes.adapter.summary_addr = dev->summary_indicator->map;
1052 dev->routes.adapter.ind_addr = dev->indicators->map;
1053
1054 return 0;
1055}
1056
1057static int virtio_ccw_setup_irqroutes(VirtioCcwDevice *dev, int nvqs)
1058{
1059 int i;
1060 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1061 int ret;
1062 S390FLICState *fs = s390_get_flic();
1063 S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs);
1064
1065 ret = virtio_ccw_get_mappings(dev);
1066 if (ret) {
1067 return ret;
1068 }
1069 for (i = 0; i < nvqs; i++) {
1070 if (!virtio_queue_get_num(vdev, i)) {
1071 break;
1072 }
1073 }
1074 dev->routes.num_routes = i;
1075 return fsc->add_adapter_routes(fs, &dev->routes);
1076}
1077
1078static void virtio_ccw_release_irqroutes(VirtioCcwDevice *dev, int nvqs)
1079{
1080 S390FLICState *fs = s390_get_flic();
1081 S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs);
1082
1083 fsc->release_adapter_routes(fs, &dev->routes);
1084}
1085
1086static int virtio_ccw_add_irqfd(VirtioCcwDevice *dev, int n)
1087{
1088 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1089 VirtQueue *vq = virtio_get_queue(vdev, n);
1090 EventNotifier *notifier = virtio_queue_get_guest_notifier(vq);
1091
1c9b71a7
EA		 1092 return kvm_irqchip_add_irqfd_notifier_gsi(kvm_state, notifier, NULL,
1093 dev->routes.gsi[n]);
d426d9fb
CH		 1094}
1095
1096static void virtio_ccw_remove_irqfd(VirtioCcwDevice *dev, int n)
1097{
1098 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1099 VirtQueue *vq = virtio_get_queue(vdev, n);
1100 EventNotifier *notifier = virtio_queue_get_guest_notifier(vq);
1101 int ret;
1102
1c9b71a7
EA		 1103 ret = kvm_irqchip_remove_irqfd_notifier_gsi(kvm_state, notifier,
1104 dev->routes.gsi[n]);
d426d9fb
CH		 1105 assert(ret == 0);
1106}
1107
320ce850
CH		 1108static int virtio_ccw_set_guest_notifier(VirtioCcwDevice *dev, int n,
1109 bool assign, bool with_irqfd)
1110{
f24a6840
PB		 1111 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1112 VirtQueue *vq = virtio_get_queue(vdev, n);
320ce850 1113 EventNotifier *notifier = virtio_queue_get_guest_notifier(vq);
f24a6840 1114 VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
320ce850
CH		 1115
1116 if (assign) {
1117 int r = event_notifier_init(notifier, 0);
1118
1119 if (r < 0) {
1120 return r;
1121 }
1122 virtio_queue_set_guest_notifier_fd_handler(vq, true, with_irqfd);
d426d9fb
CH		 1123 if (with_irqfd) {
1124 r = virtio_ccw_add_irqfd(dev, n);
1125 if (r) {
1126 virtio_queue_set_guest_notifier_fd_handler(vq, false,
1127 with_irqfd);
1128 return r;
1129 }
1130 }
1131 /*
1132 * We do not support individual masking for channel devices, so we
1133 * need to manually trigger any guest masking callbacks here.
320ce850 1134 */
2858bc68 1135 if (k->guest_notifier_mask && vdev->use_guest_notifier_mask) {
f24a6840 1136 k->guest_notifier_mask(vdev, n, false);
320ce850
CH		 1137 }
1138 /* get lost events and re-inject */
1139 if (k->guest_notifier_pending &&
f24a6840 1140 k->guest_notifier_pending(vdev, n)) {
320ce850
CH		 1141 event_notifier_set(notifier);
1142 }
1143 } else {
2858bc68 1144 if (k->guest_notifier_mask && vdev->use_guest_notifier_mask) {
f24a6840 1145 k->guest_notifier_mask(vdev, n, true);
320ce850 1146 }
d426d9fb
CH		 1147 if (with_irqfd) {
1148 virtio_ccw_remove_irqfd(dev, n);
1149 }
320ce850
CH		 1150 virtio_queue_set_guest_notifier_fd_handler(vq, false, with_irqfd);
1151 event_notifier_cleanup(notifier);
1152 }
1153 return 0;
1154}
1155
1156static int virtio_ccw_set_guest_notifiers(DeviceState *d, int nvqs,
1157 bool assigned)
1158{
1159 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
f24a6840 1160 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
b804e8a6
JL		 1161 CcwDevice *ccw_dev = CCW_DEVICE(d);
1162 bool with_irqfd = ccw_dev->sch->thinint_active && kvm_irqfds_enabled();
320ce850
CH		 1163 int r, n;
1164
d426d9fb
CH		 1165 if (with_irqfd && assigned) {
1166 /* irq routes need to be set up before assigning irqfds */
1167 r = virtio_ccw_setup_irqroutes(dev, nvqs);
1168 if (r < 0) {
1169 goto irqroute_error;
1170 }
1171 }
320ce850
CH		 1172 for (n = 0; n < nvqs; n++) {
1173 if (!virtio_queue_get_num(vdev, n)) {
1174 break;
1175 }
d426d9fb 1176 r = virtio_ccw_set_guest_notifier(dev, n, assigned, with_irqfd);
320ce850
CH		 1177 if (r < 0) {
1178 goto assign_error;
1179 }
1180 }
d426d9fb
CH		 1181 if (with_irqfd && !assigned) {
1182 /* release irq routes after irqfds have been released */
1183 virtio_ccw_release_irqroutes(dev, nvqs);
1184 }
320ce850
CH		 1185 return 0;
1186
1187assign_error:
1188 while (--n >= 0) {
1189 virtio_ccw_set_guest_notifier(dev, n, !assigned, false);
1190 }
d426d9fb
CH		 1191irqroute_error:
1192 if (with_irqfd && assigned) {
1193 virtio_ccw_release_irqroutes(dev, nvqs);
1194 }
320ce850
CH		 1195 return r;
1196}
1197
bcb2b582
JF		 1198static void virtio_ccw_save_queue(DeviceState *d, int n, QEMUFile *f)
1199{
1200 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1201 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1202
1203 qemu_put_be16(f, virtio_queue_vector(vdev, n));
1204}
1205
1206static int virtio_ccw_load_queue(DeviceState *d, int n, QEMUFile *f)
1207{
1208 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1209 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1210 uint16_t vector;
1211
1212 qemu_get_be16s(f, &vector);
1213 virtio_queue_set_vector(vdev, n , vector);
1214
1215 return 0;
1216}
1217
1218static void virtio_ccw_save_config(DeviceState *d, QEMUFile *f)
1219{
1220 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
b804e8a6
JL		 1221 CcwDevice *ccw_dev = CCW_DEVICE(d);
1222 SubchDev *s = ccw_dev->sch;
2a72ea5f 1223 VirtIODevice *vdev = virtio_ccw_get_vdev(s);
bcb2b582
JF		 1224
1225 subch_device_save(s, f);
1226 if (dev->indicators != NULL) {
1227 qemu_put_be32(f, dev->indicators->len);
1228 qemu_put_be64(f, dev->indicators->addr);
1229 } else {
1230 qemu_put_be32(f, 0);
1231 qemu_put_be64(f, 0UL);
1232 }
1233 if (dev->indicators2 != NULL) {
1234 qemu_put_be32(f, dev->indicators2->len);
1235 qemu_put_be64(f, dev->indicators2->addr);
1236 } else {
1237 qemu_put_be32(f, 0);
1238 qemu_put_be64(f, 0UL);
1239 }
1240 if (dev->summary_indicator != NULL) {
1241 qemu_put_be32(f, dev->summary_indicator->len);
1242 qemu_put_be64(f, dev->summary_indicator->addr);
1243 } else {
1244 qemu_put_be32(f, 0);
1245 qemu_put_be64(f, 0UL);
1246 }
2a72ea5f 1247 qemu_put_be16(f, vdev->config_vector);
bcb2b582
JF		 1248 qemu_put_be64(f, dev->routes.adapter.ind_offset);
1249 qemu_put_byte(f, dev->thinint_isc);
213941d7 1250 qemu_put_be32(f, dev->revision);
bcb2b582
JF		 1251}
1252
1253static int virtio_ccw_load_config(DeviceState *d, QEMUFile *f)
1254{
1255 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
b804e8a6
JL		 1256 CcwDevice *ccw_dev = CCW_DEVICE(d);
1257 SubchDev *s = ccw_dev->sch;
2a72ea5f 1258 VirtIODevice *vdev = virtio_ccw_get_vdev(s);
bcb2b582
JF		 1259 int len;
1260
1261 s->driver_data = dev;
1262 subch_device_load(s, f);
1263 len = qemu_get_be32(f);
1264 if (len != 0) {
1265 dev->indicators = get_indicator(qemu_get_be64(f), len);
1266 } else {
1267 qemu_get_be64(f);
1268 dev->indicators = NULL;
1269 }
1270 len = qemu_get_be32(f);
1271 if (len != 0) {
1272 dev->indicators2 = get_indicator(qemu_get_be64(f), len);
1273 } else {
1274 qemu_get_be64(f);
1275 dev->indicators2 = NULL;
1276 }
1277 len = qemu_get_be32(f);
1278 if (len != 0) {
1279 dev->summary_indicator = get_indicator(qemu_get_be64(f), len);
1280 } else {
1281 qemu_get_be64(f);
1282 dev->summary_indicator = NULL;
1283 }
2a72ea5f 1284 qemu_get_be16s(f, &vdev->config_vector);
bcb2b582
JF		 1285 dev->routes.adapter.ind_offset = qemu_get_be64(f);
1286 dev->thinint_isc = qemu_get_byte(f);
2af9170c 1287 dev->revision = qemu_get_be32(f);
bcb2b582
JF		 1288 if (s->thinint_active) {
1289 return css_register_io_adapter(CSS_IO_ADAPTER_VIRTIO,
1290 dev->thinint_isc, true, false,
1291 &dev->routes.adapter.adapter_id);
1292 }
1293
1294 return 0;
1295}
1296
d1b4259f
MC		 1297static void virtio_ccw_pre_plugged(DeviceState *d, Error **errp)
1298{
1299 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1300 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1301
1302 if (dev->max_rev >= 1) {
1303 virtio_add_feature(&vdev->host_features, VIRTIO_F_VERSION_1);
1304 }
1305}
1306
fb846a09 1307/* This is called by virtio-bus just after the device is plugged. */
e8398045 1308static void virtio_ccw_device_plugged(DeviceState *d, Error **errp)
fb846a09
CH		 1309{
1310 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
10ceaa1e 1311 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
b804e8a6
JL		 1312 CcwDevice *ccw_dev = CCW_DEVICE(d);
1313 SubchDev *sch = ccw_dev->sch;
10ceaa1e
JW		 1314 int n = virtio_get_num_queues(vdev);
1315
d1b4259f
MC		 1316 if (!virtio_has_feature(vdev->host_features, VIRTIO_F_VERSION_1)) {
1317 dev->max_rev = 0;
1318 }
1319
10ceaa1e 1320 if (virtio_get_num_queues(vdev) > VIRTIO_CCW_QUEUE_MAX) {
b34aee54 1321 error_setg(errp, "The number of virtqueues %d "
10ceaa1e
JW		 1322 "exceeds ccw limit %d", n,
1323 VIRTIO_CCW_QUEUE_MAX);
1324 return;
1325 }
fb846a09
CH		 1326
1327 sch->id.cu_model = virtio_bus_get_vdev_id(&dev->bus);
1328
542571d5 1329
fb846a09
CH		 1330 css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid,
1331 d->hotplugged, 1);
1332}
1333
1334static void virtio_ccw_device_unplugged(DeviceState *d)
1335{
1336 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1337
1338 virtio_ccw_stop_ioeventfd(dev);
1339}
a5cf2bb4
CH		 1340/**************** Virtio-ccw Bus Device Descriptions *******************/
1341
a5cf2bb4 1342static Property virtio_ccw_net_properties[] = {
b804e8a6 1343 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
b4436a0b
CH		 1344 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1345 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
542571d5
CH		 1346 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1347 VIRTIO_CCW_MAX_REV),
a5cf2bb4
CH		 1348 DEFINE_PROP_END_OF_LIST(),
1349};
1350
1351static void virtio_ccw_net_class_init(ObjectClass *klass, void *data)
1352{
1353 DeviceClass *dc = DEVICE_CLASS(klass);
1354 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1355
5e5ced38 1356 k->realize = virtio_ccw_net_realize;
89334c8b 1357 k->exit = virtio_ccw_exit;
a5cf2bb4
CH		 1358 dc->reset = virtio_ccw_reset;
1359 dc->props = virtio_ccw_net_properties;
cd20d616 1360 set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
a5cf2bb4
CH		 1361}
1362
1363static const TypeInfo virtio_ccw_net = {
89334c8b 1364 .name = TYPE_VIRTIO_NET_CCW,
a5cf2bb4 1365 .parent = TYPE_VIRTIO_CCW_DEVICE,
89334c8b
FK		 1366 .instance_size = sizeof(VirtIONetCcw),
1367 .instance_init = virtio_ccw_net_instance_init,
a5cf2bb4
CH		 1368 .class_init = virtio_ccw_net_class_init,
1369};
1370
1371static Property virtio_ccw_blk_properties[] = {
b804e8a6 1372 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
b4436a0b
CH		 1373 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1374 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
542571d5
CH		 1375 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1376 VIRTIO_CCW_MAX_REV),
a5cf2bb4
CH		 1377 DEFINE_PROP_END_OF_LIST(),
1378};
1379
1380static void virtio_ccw_blk_class_init(ObjectClass *klass, void *data)
1381{
1382 DeviceClass *dc = DEVICE_CLASS(klass);
1383 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1384
5e5ced38 1385 k->realize = virtio_ccw_blk_realize;
3400c455 1386 k->exit = virtio_ccw_exit;
a5cf2bb4
CH		 1387 dc->reset = virtio_ccw_reset;
1388 dc->props = virtio_ccw_blk_properties;
cd20d616 1389 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
a5cf2bb4
CH		 1390}
1391
1392static const TypeInfo virtio_ccw_blk = {
3400c455 1393 .name = TYPE_VIRTIO_BLK_CCW,
a5cf2bb4 1394 .parent = TYPE_VIRTIO_CCW_DEVICE,
3400c455
FK		 1395 .instance_size = sizeof(VirtIOBlkCcw),
1396 .instance_init = virtio_ccw_blk_instance_init,
a5cf2bb4
CH		 1397 .class_init = virtio_ccw_blk_class_init,
1398};
1399
1400static Property virtio_ccw_serial_properties[] = {
b804e8a6 1401 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
b4436a0b
CH		 1402 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1403 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
542571d5
CH		 1404 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1405 VIRTIO_CCW_MAX_REV),
a5cf2bb4
CH		 1406 DEFINE_PROP_END_OF_LIST(),
1407};
1408
1409static void virtio_ccw_serial_class_init(ObjectClass *klass, void *data)
1410{
1411 DeviceClass *dc = DEVICE_CLASS(klass);
1412 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1413
5e5ced38 1414 k->realize = virtio_ccw_serial_realize;
6acf69cd 1415 k->exit = virtio_ccw_exit;
a5cf2bb4
CH		 1416 dc->reset = virtio_ccw_reset;
1417 dc->props = virtio_ccw_serial_properties;
cd20d616 1418 set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
a5cf2bb4
CH		 1419}
1420
1421static const TypeInfo virtio_ccw_serial = {
6acf69cd 1422 .name = TYPE_VIRTIO_SERIAL_CCW,
a5cf2bb4 1423 .parent = TYPE_VIRTIO_CCW_DEVICE,
6acf69cd
FK		 1424 .instance_size = sizeof(VirtioSerialCcw),
1425 .instance_init = virtio_ccw_serial_instance_init,
a5cf2bb4
CH		 1426 .class_init = virtio_ccw_serial_class_init,
1427};
1428
1429static Property virtio_ccw_balloon_properties[] = {
b804e8a6 1430 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
b4436a0b
CH		 1431 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1432 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
542571d5
CH		 1433 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1434 VIRTIO_CCW_MAX_REV),
a5cf2bb4
CH		 1435 DEFINE_PROP_END_OF_LIST(),
1436};
1437
1438static void virtio_ccw_balloon_class_init(ObjectClass *klass, void *data)
1439{
1440 DeviceClass *dc = DEVICE_CLASS(klass);
1441 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1442
5e5ced38 1443 k->realize = virtio_ccw_balloon_realize;
30bff6a0 1444 k->exit = virtio_ccw_exit;
a5cf2bb4
CH		 1445 dc->reset = virtio_ccw_reset;
1446 dc->props = virtio_ccw_balloon_properties;
cd20d616 1447 set_bit(DEVICE_CATEGORY_MISC, dc->categories);
a5cf2bb4
CH		 1448}
1449
1450static const TypeInfo virtio_ccw_balloon = {
30bff6a0 1451 .name = TYPE_VIRTIO_BALLOON_CCW,
a5cf2bb4 1452 .parent = TYPE_VIRTIO_CCW_DEVICE,
30bff6a0
FK		 1453 .instance_size = sizeof(VirtIOBalloonCcw),
1454 .instance_init = virtio_ccw_balloon_instance_init,
a5cf2bb4
CH		 1455 .class_init = virtio_ccw_balloon_class_init,
1456};
1457
1458static Property virtio_ccw_scsi_properties[] = {
b804e8a6 1459 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
b4436a0b
CH		 1460 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1461 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
542571d5
CH		 1462 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1463 VIRTIO_CCW_MAX_REV),
a5cf2bb4
CH		 1464 DEFINE_PROP_END_OF_LIST(),
1465};
1466
1467static void virtio_ccw_scsi_class_init(ObjectClass *klass, void *data)
1468{
1469 DeviceClass *dc = DEVICE_CLASS(klass);
1470 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1471
5e5ced38 1472 k->realize = virtio_ccw_scsi_realize;
c908ea10 1473 k->exit = virtio_ccw_exit;
a5cf2bb4
CH		 1474 dc->reset = virtio_ccw_reset;
1475 dc->props = virtio_ccw_scsi_properties;
cd20d616 1476 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
a5cf2bb4
CH		 1477}
1478
1479static const TypeInfo virtio_ccw_scsi = {
c908ea10 1480 .name = TYPE_VIRTIO_SCSI_CCW,
a5cf2bb4 1481 .parent = TYPE_VIRTIO_CCW_DEVICE,
c908ea10
FK		 1482 .instance_size = sizeof(VirtIOSCSICcw),
1483 .instance_init = virtio_ccw_scsi_instance_init,
a5cf2bb4
CH		 1484 .class_init = virtio_ccw_scsi_class_init,
1485};
1486
ccf6916c
PB		 1487#ifdef CONFIG_VHOST_SCSI
1488static Property vhost_ccw_scsi_properties[] = {
b804e8a6 1489 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
542571d5
CH		 1490 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1491 VIRTIO_CCW_MAX_REV),
ccf6916c
PB		 1492 DEFINE_PROP_END_OF_LIST(),
1493};
1494
1495static void vhost_ccw_scsi_class_init(ObjectClass *klass, void *data)
1496{
1497 DeviceClass *dc = DEVICE_CLASS(klass);
1498 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1499
5e5ced38 1500 k->realize = vhost_ccw_scsi_realize;
ccf6916c
PB		 1501 k->exit = virtio_ccw_exit;
1502 dc->reset = virtio_ccw_reset;
1503 dc->props = vhost_ccw_scsi_properties;
cd20d616 1504 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
ccf6916c
PB		 1505}
1506
1507static const TypeInfo vhost_ccw_scsi = {
1508 .name = TYPE_VHOST_SCSI_CCW,
1509 .parent = TYPE_VIRTIO_CCW_DEVICE,
4b7757ba 1510 .instance_size = sizeof(VHostSCSICcw),
ccf6916c
PB		 1511 .instance_init = vhost_ccw_scsi_instance_init,
1512 .class_init = vhost_ccw_scsi_class_init,
1513};
1514#endif
1515
2db26d4c 1516static void virtio_ccw_rng_instance_init(Object *obj)
2362ecc5 1517{
2db26d4c 1518 VirtIORNGCcw *dev = VIRTIO_RNG_CCW(obj);
c8075caf
GA		 1519
1520 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
1521 TYPE_VIRTIO_RNG);
cbd5ac69
PB		 1522 object_property_add_alias(obj, "rng", OBJECT(&dev->vdev),
1523 "rng", &error_abort);
2362ecc5
CH		 1524}
1525
1526static Property virtio_ccw_rng_properties[] = {
b804e8a6 1527 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
b4436a0b
CH		 1528 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1529 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
542571d5
CH		 1530 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1531 VIRTIO_CCW_MAX_REV),
2362ecc5
CH		 1532 DEFINE_PROP_END_OF_LIST(),
1533};
1534
1535static void virtio_ccw_rng_class_init(ObjectClass *klass, void *data)
1536{
1537 DeviceClass *dc = DEVICE_CLASS(klass);
1538 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1539
5e5ced38 1540 k->realize = virtio_ccw_rng_realize;
2db26d4c 1541 k->exit = virtio_ccw_exit;
2362ecc5
CH		 1542 dc->reset = virtio_ccw_reset;
1543 dc->props = virtio_ccw_rng_properties;
cd20d616 1544 set_bit(DEVICE_CATEGORY_MISC, dc->categories);
2362ecc5
CH		 1545}
1546
1547static const TypeInfo virtio_ccw_rng = {
2db26d4c 1548 .name = TYPE_VIRTIO_RNG_CCW,
2362ecc5 1549 .parent = TYPE_VIRTIO_CCW_DEVICE,
2db26d4c
FK		 1550 .instance_size = sizeof(VirtIORNGCcw),
1551 .instance_init = virtio_ccw_rng_instance_init,
2362ecc5
CH		 1552 .class_init = virtio_ccw_rng_class_init,
1553};
1554
d2256070
HP		 1555static Property virtio_ccw_crypto_properties[] = {
1556 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
1557 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1558 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
1559 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1560 VIRTIO_CCW_MAX_REV),
1561 DEFINE_PROP_END_OF_LIST(),
1562};
1563
1564static void virtio_ccw_crypto_instance_init(Object *obj)
1565{
1566 VirtIOCryptoCcw *dev = VIRTIO_CRYPTO_CCW(obj);
1567 VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj);
1568
1569 ccw_dev->force_revision_1 = true;
1570 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
1571 TYPE_VIRTIO_CRYPTO);
1572
1573 object_property_add_alias(obj, "cryptodev", OBJECT(&dev->vdev),
1574 "cryptodev", &error_abort);
1575}
1576
1577static void virtio_ccw_crypto_class_init(ObjectClass *klass, void *data)
1578{
1579 DeviceClass *dc = DEVICE_CLASS(klass);
1580 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1581
1582 k->realize = virtio_ccw_crypto_realize;
1583 k->exit = virtio_ccw_exit;
1584 dc->reset = virtio_ccw_reset;
1585 dc->props = virtio_ccw_crypto_properties;
1586 set_bit(DEVICE_CATEGORY_MISC, dc->categories);
1587}
1588
1589static const TypeInfo virtio_ccw_crypto = {
1590 .name = TYPE_VIRTIO_CRYPTO_CCW,
1591 .parent = TYPE_VIRTIO_CCW_DEVICE,
1592 .instance_size = sizeof(VirtIOCryptoCcw),
1593 .instance_init = virtio_ccw_crypto_instance_init,
1594 .class_init = virtio_ccw_crypto_class_init,
1595};
1596
5e5ced38 1597static void virtio_ccw_busdev_realize(DeviceState *dev, Error **errp)
a5cf2bb4
CH		 1598{
1599 VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev;
a5cf2bb4 1600
1bf4d7aa 1601 virtio_ccw_bus_new(&_dev->bus, sizeof(_dev->bus), _dev);
1fa75523 1602 virtio_ccw_device_realize(_dev, errp);
a5cf2bb4
CH		 1603}
1604
1605static int virtio_ccw_busdev_exit(DeviceState *dev)
1606{
1607 VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev;
1608 VirtIOCCWDeviceClass *_info = VIRTIO_CCW_DEVICE_GET_CLASS(dev);
1609
1610 return _info->exit(_dev);
1611}
1612
b804e8a6
JL		 1613static void virtio_ccw_busdev_unplug(HotplugHandler *hotplug_dev,
1614 DeviceState *dev, Error **errp)
a5cf2bb4 1615{
b804e8a6 1616 VirtioCcwDevice *_dev = to_virtio_ccw_dev_fast(dev);
a5cf2bb4 1617
0b81c1ef 1618 virtio_ccw_stop_ioeventfd(_dev);
a5cf2bb4
CH		 1619}
1620
1621static void virtio_ccw_device_class_init(ObjectClass *klass, void *data)
1622{
1623 DeviceClass *dc = DEVICE_CLASS(klass);
b804e8a6 1624 CCWDeviceClass *k = CCW_DEVICE_CLASS(dc);
a5cf2bb4 1625
b804e8a6 1626 k->unplug = virtio_ccw_busdev_unplug;
5e5ced38 1627 dc->realize = virtio_ccw_busdev_realize;
a5cf2bb4 1628 dc->exit = virtio_ccw_busdev_exit;
a5cf2bb4 1629 dc->bus_type = TYPE_VIRTUAL_CSS_BUS;
a5cf2bb4
CH		 1630}
1631
1632static const TypeInfo virtio_ccw_device_info = {
1633 .name = TYPE_VIRTIO_CCW_DEVICE,
b804e8a6 1634 .parent = TYPE_CCW_DEVICE,
a5cf2bb4
CH		 1635 .instance_size = sizeof(VirtioCcwDevice),
1636 .class_init = virtio_ccw_device_class_init,
1637 .class_size = sizeof(VirtIOCCWDeviceClass),
1638 .abstract = true,
1639};
1640
a5cf2bb4
CH		 1641/* virtio-ccw-bus */
1642
1bf4d7aa
AF		 1643static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size,
1644 VirtioCcwDevice *dev)
a5cf2bb4
CH		 1645{
1646 DeviceState *qdev = DEVICE(dev);
f4dd69aa 1647 char virtio_bus_name[] = "virtio-bus";
a5cf2bb4 1648
fb17dfe0
AF		 1649 qbus_create_inplace(bus, bus_size, TYPE_VIRTIO_CCW_BUS,
1650 qdev, virtio_bus_name);
a5cf2bb4
CH		 1651}
1652
1653static void virtio_ccw_bus_class_init(ObjectClass *klass, void *data)
1654{
1655 VirtioBusClass *k = VIRTIO_BUS_CLASS(klass);
1656 BusClass *bus_class = BUS_CLASS(klass);
1657
1658 bus_class->max_dev = 1;
1659 k->notify = virtio_ccw_notify;
b4436a0b 1660 k->vmstate_change = virtio_ccw_vmstate_change;
320ce850 1661 k->query_guest_notifiers = virtio_ccw_query_guest_notifiers;
320ce850 1662 k->set_guest_notifiers = virtio_ccw_set_guest_notifiers;
bcb2b582
JF		 1663 k->save_queue = virtio_ccw_save_queue;
1664 k->load_queue = virtio_ccw_load_queue;
1665 k->save_config = virtio_ccw_save_config;
1666 k->load_config = virtio_ccw_load_config;
d1b4259f 1667 k->pre_plugged = virtio_ccw_pre_plugged;
fb846a09
CH		 1668 k->device_plugged = virtio_ccw_device_plugged;
1669 k->device_unplugged = virtio_ccw_device_unplugged;
8e93cef1 1670 k->ioeventfd_enabled = virtio_ccw_ioeventfd_enabled;
7c55f68a 1671 k->ioeventfd_assign = virtio_ccw_ioeventfd_assign;
a5cf2bb4
CH		 1672}
1673
1674static const TypeInfo virtio_ccw_bus_info = {
1675 .name = TYPE_VIRTIO_CCW_BUS,
1676 .parent = TYPE_VIRTIO_BUS,
1677 .instance_size = sizeof(VirtioCcwBusState),
1678 .class_init = virtio_ccw_bus_class_init,
1679};
1680
de6a9218
PM		 1681#ifdef CONFIG_VIRTFS
1682static Property virtio_ccw_9p_properties[] = {
b804e8a6 1683 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
de6a9218
PM		 1684 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1685 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
542571d5
CH		 1686 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1687 VIRTIO_CCW_MAX_REV),
de6a9218
PM		 1688 DEFINE_PROP_END_OF_LIST(),
1689};
1690
1691static void virtio_ccw_9p_realize(VirtioCcwDevice *ccw_dev, Error **errp)
1692{
1693 V9fsCCWState *dev = VIRTIO_9P_CCW(ccw_dev);
1694 DeviceState *vdev = DEVICE(&dev->vdev);
de6a9218
PM		 1695
1696 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
6b62d961 1697 object_property_set_bool(OBJECT(vdev), true, "realized", errp);
de6a9218
PM		 1698}
1699
1700static void virtio_ccw_9p_class_init(ObjectClass *klass, void *data)
1701{
1702 DeviceClass *dc = DEVICE_CLASS(klass);
1703 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1704
1705 k->exit = virtio_ccw_exit;
1706 k->realize = virtio_ccw_9p_realize;
1707 dc->reset = virtio_ccw_reset;
1708 dc->props = virtio_ccw_9p_properties;
1709 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
1710}
1711
1712static void virtio_ccw_9p_instance_init(Object *obj)
1713{
1714 V9fsCCWState *dev = VIRTIO_9P_CCW(obj);
1715
1716 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
1717 TYPE_VIRTIO_9P);
1718}
1719
1720static const TypeInfo virtio_ccw_9p_info = {
1721 .name = TYPE_VIRTIO_9P_CCW,
1722 .parent = TYPE_VIRTIO_CCW_DEVICE,
1723 .instance_size = sizeof(V9fsCCWState),
1724 .instance_init = virtio_ccw_9p_instance_init,
1725 .class_init = virtio_ccw_9p_class_init,
1726};
1727#endif
1728
fc0b9b0e
SH		 1729#ifdef CONFIG_VHOST_VSOCK
1730
1731static Property vhost_vsock_ccw_properties[] = {
1732 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
1733 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1734 VIRTIO_CCW_MAX_REV),
1735 DEFINE_PROP_END_OF_LIST(),
1736};
1737
1738static void vhost_vsock_ccw_realize(VirtioCcwDevice *ccw_dev, Error **errp)
1739{
1740 VHostVSockCCWState *dev = VHOST_VSOCK_CCW(ccw_dev);
1741 DeviceState *vdev = DEVICE(&dev->vdev);
1742 Error *err = NULL;
1743
1744 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
1745 object_property_set_bool(OBJECT(vdev), true, "realized", &err);
1746 if (err) {
1747 error_propagate(errp, err);
1748 }
1749}
1750
1751static void vhost_vsock_ccw_class_init(ObjectClass *klass, void *data)
1752{
1753 DeviceClass *dc = DEVICE_CLASS(klass);
1754 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1755
1756 k->realize = vhost_vsock_ccw_realize;
1757 k->exit = virtio_ccw_exit;
1758 set_bit(DEVICE_CATEGORY_MISC, dc->categories);
1759 dc->props = vhost_vsock_ccw_properties;
1760 dc->reset = virtio_ccw_reset;
1761}
1762
1763static void vhost_vsock_ccw_instance_init(Object *obj)
1764{
1765 VHostVSockCCWState *dev = VHOST_VSOCK_CCW(obj);
1766
1767 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
1768 TYPE_VHOST_VSOCK);
1769}
1770
1771static const TypeInfo vhost_vsock_ccw_info = {
1772 .name = TYPE_VHOST_VSOCK_CCW,
1773 .parent = TYPE_VIRTIO_CCW_DEVICE,
1774 .instance_size = sizeof(VHostVSockCCWState),
1775 .instance_init = vhost_vsock_ccw_instance_init,
1776 .class_init = vhost_vsock_ccw_class_init,
1777};
1778#endif
1779
a5cf2bb4
CH		 1780static void virtio_ccw_register(void)
1781{
1782 type_register_static(&virtio_ccw_bus_info);
a5cf2bb4
CH		 1783 type_register_static(&virtio_ccw_device_info);
1784 type_register_static(&virtio_ccw_serial);
1785 type_register_static(&virtio_ccw_blk);
1786 type_register_static(&virtio_ccw_net);
1787 type_register_static(&virtio_ccw_balloon);
1788 type_register_static(&virtio_ccw_scsi);
b702d2ae 1789#ifdef CONFIG_VHOST_SCSI
ccf6916c 1790 type_register_static(&vhost_ccw_scsi);
b702d2ae 1791#endif
2362ecc5 1792 type_register_static(&virtio_ccw_rng);
de6a9218
PM		 1793#ifdef CONFIG_VIRTFS
1794 type_register_static(&virtio_ccw_9p_info);
1795#endif
fc0b9b0e
SH		 1796#ifdef CONFIG_VHOST_VSOCK
1797 type_register_static(&vhost_vsock_ccw_info);
1798#endif
d2256070 1799 type_register_static(&virtio_ccw_crypto);
a5cf2bb4
CH		 1800}
1801
1802type_init(virtio_ccw_register)
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