1 /* 2 * virtio ccw target implementation 3 * 4 * Copyright 2012,2015 IBM Corp. 5 * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com> 6 * Pierre Morel <pmorel@linux.vnet.ibm.com> 7 * 8 * This work is licensed under the terms of the GNU GPL, version 2 or (at 9 * your option) any later version. See the COPYING file in the top-level 10 * directory. 11 */ 12 13 #include "qemu/osdep.h" 14 #include "qapi/error.h" 15 #include "hw/hw.h" 16 #include "sysemu/sysemu.h" 17 #include "sysemu/kvm.h" 18 #include "net/net.h" 19 #include "hw/virtio/virtio.h" 20 #include "hw/virtio/virtio-serial.h" 21 #include "hw/virtio/virtio-net.h" 22 #include "hw/sysbus.h" 23 #include "qemu/bitops.h" 24 #include "qemu/error-report.h" 25 #include "hw/virtio/virtio-access.h" 26 #include "hw/virtio/virtio-bus.h" 27 #include "hw/s390x/adapter.h" 28 #include "hw/s390x/s390_flic.h" 29 30 #include "hw/s390x/ioinst.h" 31 #include "hw/s390x/css.h" 32 #include "virtio-ccw.h" 33 #include "trace.h" 34 #include "hw/s390x/css-bridge.h" 35 #include "hw/s390x/s390-virtio-ccw.h" 36 37 #define NR_CLASSIC_INDICATOR_BITS 64 38 39 static int virtio_ccw_dev_post_load(void *opaque, int version_id) 40 { 41 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(opaque); 42 CcwDevice *ccw_dev = CCW_DEVICE(dev); 43 CCWDeviceClass *ck = CCW_DEVICE_GET_CLASS(ccw_dev); 44 45 ccw_dev->sch->driver_data = dev; 46 if (ccw_dev->sch->thinint_active) { 47 dev->routes.adapter.adapter_id = css_get_adapter_id( 48 CSS_IO_ADAPTER_VIRTIO, 49 dev->thinint_isc); 50 } 51 /* Re-fill subch_id after loading the subchannel states.*/ 52 if (ck->refill_ids) { 53 ck->refill_ids(ccw_dev); 54 } 55 return 0; 56 } 57 58 typedef struct VirtioCcwDeviceTmp { 59 VirtioCcwDevice *parent; 60 uint16_t config_vector; 61 } VirtioCcwDeviceTmp; 62 63 static int virtio_ccw_dev_tmp_pre_save(void *opaque) 64 { 65 VirtioCcwDeviceTmp *tmp = opaque; 66 VirtioCcwDevice *dev = tmp->parent; 67 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 68 69 tmp->config_vector = vdev->config_vector; 70 71 return 0; 72 } 73 74 static int virtio_ccw_dev_tmp_post_load(void *opaque, int version_id) 75 { 76 VirtioCcwDeviceTmp *tmp = opaque; 77 VirtioCcwDevice *dev = tmp->parent; 78 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 79 80 vdev->config_vector = tmp->config_vector; 81 return 0; 82 } 83 84 const VMStateDescription vmstate_virtio_ccw_dev_tmp = { 85 .name = "s390_virtio_ccw_dev_tmp", 86 .pre_save = virtio_ccw_dev_tmp_pre_save, 87 .post_load = virtio_ccw_dev_tmp_post_load, 88 .fields = (VMStateField[]) { 89 VMSTATE_UINT16(config_vector, VirtioCcwDeviceTmp), 90 VMSTATE_END_OF_LIST() 91 } 92 }; 93 94 const VMStateDescription vmstate_virtio_ccw_dev = { 95 .name = "s390_virtio_ccw_dev", 96 .version_id = 1, 97 .minimum_version_id = 1, 98 .post_load = virtio_ccw_dev_post_load, 99 .fields = (VMStateField[]) { 100 VMSTATE_CCW_DEVICE(parent_obj, VirtioCcwDevice), 101 VMSTATE_PTR_TO_IND_ADDR(indicators, VirtioCcwDevice), 102 VMSTATE_PTR_TO_IND_ADDR(indicators2, VirtioCcwDevice), 103 VMSTATE_PTR_TO_IND_ADDR(summary_indicator, VirtioCcwDevice), 104 /* 105 * Ugly hack because VirtIODevice does not migrate itself. 106 * This also makes legacy via vmstate_save_state possible. 107 */ 108 VMSTATE_WITH_TMP(VirtioCcwDevice, VirtioCcwDeviceTmp, 109 vmstate_virtio_ccw_dev_tmp), 110 VMSTATE_STRUCT(routes, VirtioCcwDevice, 1, vmstate_adapter_routes, 111 AdapterRoutes), 112 VMSTATE_UINT8(thinint_isc, VirtioCcwDevice), 113 VMSTATE_INT32(revision, VirtioCcwDevice), 114 VMSTATE_END_OF_LIST() 115 } 116 }; 117 118 static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size, 119 VirtioCcwDevice *dev); 120 121 VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch) 122 { 123 VirtIODevice *vdev = NULL; 124 VirtioCcwDevice *dev = sch->driver_data; 125 126 if (dev) { 127 vdev = virtio_bus_get_device(&dev->bus); 128 } 129 return vdev; 130 } 131 132 static void virtio_ccw_start_ioeventfd(VirtioCcwDevice *dev) 133 { 134 virtio_bus_start_ioeventfd(&dev->bus); 135 } 136 137 static void virtio_ccw_stop_ioeventfd(VirtioCcwDevice *dev) 138 { 139 virtio_bus_stop_ioeventfd(&dev->bus); 140 } 141 142 static bool virtio_ccw_ioeventfd_enabled(DeviceState *d) 143 { 144 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 145 146 return (dev->flags & VIRTIO_CCW_FLAG_USE_IOEVENTFD) != 0; 147 } 148 149 static int virtio_ccw_ioeventfd_assign(DeviceState *d, EventNotifier *notifier, 150 int n, bool assign) 151 { 152 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 153 CcwDevice *ccw_dev = CCW_DEVICE(dev); 154 SubchDev *sch = ccw_dev->sch; 155 uint32_t sch_id = (css_build_subchannel_id(sch) << 16) | sch->schid; 156 157 return s390_assign_subch_ioeventfd(notifier, sch_id, n, assign); 158 } 159 160 /* Communication blocks used by several channel commands. */ 161 typedef struct VqInfoBlockLegacy { 162 uint64_t queue; 163 uint32_t align; 164 uint16_t index; 165 uint16_t num; 166 } QEMU_PACKED VqInfoBlockLegacy; 167 168 typedef struct VqInfoBlock { 169 uint64_t desc; 170 uint32_t res0; 171 uint16_t index; 172 uint16_t num; 173 uint64_t avail; 174 uint64_t used; 175 } QEMU_PACKED VqInfoBlock; 176 177 typedef struct VqConfigBlock { 178 uint16_t index; 179 uint16_t num_max; 180 } QEMU_PACKED VqConfigBlock; 181 182 typedef struct VirtioFeatDesc { 183 uint32_t features; 184 uint8_t index; 185 } QEMU_PACKED VirtioFeatDesc; 186 187 typedef struct VirtioThinintInfo { 188 hwaddr summary_indicator; 189 hwaddr device_indicator; 190 uint64_t ind_bit; 191 uint8_t isc; 192 } QEMU_PACKED VirtioThinintInfo; 193 194 typedef struct VirtioRevInfo { 195 uint16_t revision; 196 uint16_t length; 197 uint8_t data[0]; 198 } QEMU_PACKED VirtioRevInfo; 199 200 /* Specify where the virtqueues for the subchannel are in guest memory. */ 201 static int virtio_ccw_set_vqs(SubchDev *sch, VqInfoBlock *info, 202 VqInfoBlockLegacy *linfo) 203 { 204 VirtIODevice *vdev = virtio_ccw_get_vdev(sch); 205 uint16_t index = info ? info->index : linfo->index; 206 uint16_t num = info ? info->num : linfo->num; 207 uint64_t desc = info ? info->desc : linfo->queue; 208 209 if (index >= VIRTIO_QUEUE_MAX) { 210 return -EINVAL; 211 } 212 213 /* Current code in virtio.c relies on 4K alignment. */ 214 if (linfo && desc && (linfo->align != 4096)) { 215 return -EINVAL; 216 } 217 218 if (!vdev) { 219 return -EINVAL; 220 } 221 222 if (info) { 223 virtio_queue_set_rings(vdev, index, desc, info->avail, info->used); 224 } else { 225 virtio_queue_set_addr(vdev, index, desc); 226 } 227 if (!desc) { 228 virtio_queue_set_vector(vdev, index, VIRTIO_NO_VECTOR); 229 } else { 230 if (info) { 231 /* virtio-1 allows changing the ring size. */ 232 if (virtio_queue_get_max_num(vdev, index) < num) { 233 /* Fail if we exceed the maximum number. */ 234 return -EINVAL; 235 } 236 virtio_queue_set_num(vdev, index, num); 237 } else if (virtio_queue_get_num(vdev, index) > num) { 238 /* Fail if we don't have a big enough queue. */ 239 return -EINVAL; 240 } 241 /* We ignore possible increased num for legacy for compatibility. */ 242 virtio_queue_set_vector(vdev, index, index); 243 } 244 /* tell notify handler in case of config change */ 245 vdev->config_vector = VIRTIO_QUEUE_MAX; 246 return 0; 247 } 248 249 static void virtio_ccw_reset_virtio(VirtioCcwDevice *dev, VirtIODevice *vdev) 250 { 251 CcwDevice *ccw_dev = CCW_DEVICE(dev); 252 253 virtio_ccw_stop_ioeventfd(dev); 254 virtio_reset(vdev); 255 if (dev->indicators) { 256 release_indicator(&dev->routes.adapter, dev->indicators); 257 dev->indicators = NULL; 258 } 259 if (dev->indicators2) { 260 release_indicator(&dev->routes.adapter, dev->indicators2); 261 dev->indicators2 = NULL; 262 } 263 if (dev->summary_indicator) { 264 release_indicator(&dev->routes.adapter, dev->summary_indicator); 265 dev->summary_indicator = NULL; 266 } 267 ccw_dev->sch->thinint_active = false; 268 } 269 270 static int virtio_ccw_handle_set_vq(SubchDev *sch, CCW1 ccw, bool check_len, 271 bool is_legacy) 272 { 273 int ret; 274 VqInfoBlock info; 275 VqInfoBlockLegacy linfo; 276 size_t info_len = is_legacy ? sizeof(linfo) : sizeof(info); 277 278 if (check_len) { 279 if (ccw.count != info_len) { 280 return -EINVAL; 281 } 282 } else if (ccw.count < info_len) { 283 /* Can't execute command. */ 284 return -EINVAL; 285 } 286 if (!ccw.cda) { 287 return -EFAULT; 288 } 289 if (is_legacy) { 290 ccw_dstream_read(&sch->cds, linfo); 291 be64_to_cpus(&linfo.queue); 292 be32_to_cpus(&linfo.align); 293 be16_to_cpus(&linfo.index); 294 be16_to_cpus(&linfo.num); 295 ret = virtio_ccw_set_vqs(sch, NULL, &linfo); 296 } else { 297 ccw_dstream_read(&sch->cds, info); 298 be64_to_cpus(&info.desc); 299 be16_to_cpus(&info.index); 300 be16_to_cpus(&info.num); 301 be64_to_cpus(&info.avail); 302 be64_to_cpus(&info.used); 303 ret = virtio_ccw_set_vqs(sch, &info, NULL); 304 } 305 sch->curr_status.scsw.count = 0; 306 return ret; 307 } 308 309 static int virtio_ccw_cb(SubchDev *sch, CCW1 ccw) 310 { 311 int ret; 312 VirtioRevInfo revinfo; 313 uint8_t status; 314 VirtioFeatDesc features; 315 hwaddr indicators; 316 VqConfigBlock vq_config; 317 VirtioCcwDevice *dev = sch->driver_data; 318 VirtIODevice *vdev = virtio_ccw_get_vdev(sch); 319 bool check_len; 320 int len; 321 VirtioThinintInfo thinint; 322 323 if (!dev) { 324 return -EINVAL; 325 } 326 327 trace_virtio_ccw_interpret_ccw(sch->cssid, sch->ssid, sch->schid, 328 ccw.cmd_code); 329 check_len = !((ccw.flags & CCW_FLAG_SLI) && !(ccw.flags & CCW_FLAG_DC)); 330 331 if (dev->force_revision_1 && dev->revision < 0 && 332 ccw.cmd_code != CCW_CMD_SET_VIRTIO_REV) { 333 /* 334 * virtio-1 drivers must start with negotiating to a revision >= 1, 335 * so post a command reject for all other commands 336 */ 337 return -ENOSYS; 338 } 339 340 /* Look at the command. */ 341 switch (ccw.cmd_code) { 342 case CCW_CMD_SET_VQ: 343 ret = virtio_ccw_handle_set_vq(sch, ccw, check_len, dev->revision < 1); 344 break; 345 case CCW_CMD_VDEV_RESET: 346 virtio_ccw_reset_virtio(dev, vdev); 347 ret = 0; 348 break; 349 case CCW_CMD_READ_FEAT: 350 if (check_len) { 351 if (ccw.count != sizeof(features)) { 352 ret = -EINVAL; 353 break; 354 } 355 } else if (ccw.count < sizeof(features)) { 356 /* Can't execute command. */ 357 ret = -EINVAL; 358 break; 359 } 360 if (!ccw.cda) { 361 ret = -EFAULT; 362 } else { 363 VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev); 364 365 ccw_dstream_advance(&sch->cds, sizeof(features.features)); 366 ccw_dstream_read(&sch->cds, features.index); 367 if (features.index == 0) { 368 if (dev->revision >= 1) { 369 /* Don't offer legacy features for modern devices. */ 370 features.features = (uint32_t) 371 (vdev->host_features & ~vdc->legacy_features); 372 } else { 373 features.features = (uint32_t)vdev->host_features; 374 } 375 } else if ((features.index == 1) && (dev->revision >= 1)) { 376 /* 377 * Only offer feature bits beyond 31 if the guest has 378 * negotiated at least revision 1. 379 */ 380 features.features = (uint32_t)(vdev->host_features >> 32); 381 } else { 382 /* Return zeroes if the guest supports more feature bits. */ 383 features.features = 0; 384 } 385 ccw_dstream_rewind(&sch->cds); 386 cpu_to_le32s(&features.features); 387 ccw_dstream_write(&sch->cds, features.features); 388 sch->curr_status.scsw.count = ccw.count - sizeof(features); 389 ret = 0; 390 } 391 break; 392 case CCW_CMD_WRITE_FEAT: 393 if (check_len) { 394 if (ccw.count != sizeof(features)) { 395 ret = -EINVAL; 396 break; 397 } 398 } else if (ccw.count < sizeof(features)) { 399 /* Can't execute command. */ 400 ret = -EINVAL; 401 break; 402 } 403 if (!ccw.cda) { 404 ret = -EFAULT; 405 } else { 406 ccw_dstream_read(&sch->cds, features); 407 le32_to_cpus(&features.features); 408 if (features.index == 0) { 409 virtio_set_features(vdev, 410 (vdev->guest_features & 0xffffffff00000000ULL) | 411 features.features); 412 } else if ((features.index == 1) && (dev->revision >= 1)) { 413 /* 414 * If the guest did not negotiate at least revision 1, 415 * we did not offer it any feature bits beyond 31. Such a 416 * guest passing us any bit here is therefore buggy. 417 */ 418 virtio_set_features(vdev, 419 (vdev->guest_features & 0x00000000ffffffffULL) | 420 ((uint64_t)features.features << 32)); 421 } else { 422 /* 423 * If the guest supports more feature bits, assert that it 424 * passes us zeroes for those we don't support. 425 */ 426 if (features.features) { 427 qemu_log_mask(LOG_GUEST_ERROR, 428 "Guest bug: features[%i]=%x (expected 0)", 429 features.index, features.features); 430 /* XXX: do a unit check here? */ 431 } 432 } 433 sch->curr_status.scsw.count = ccw.count - sizeof(features); 434 ret = 0; 435 } 436 break; 437 case CCW_CMD_READ_CONF: 438 if (check_len) { 439 if (ccw.count > vdev->config_len) { 440 ret = -EINVAL; 441 break; 442 } 443 } 444 len = MIN(ccw.count, vdev->config_len); 445 if (!ccw.cda) { 446 ret = -EFAULT; 447 } else { 448 virtio_bus_get_vdev_config(&dev->bus, vdev->config); 449 ccw_dstream_write_buf(&sch->cds, vdev->config, len); 450 sch->curr_status.scsw.count = ccw.count - len; 451 ret = 0; 452 } 453 break; 454 case CCW_CMD_WRITE_CONF: 455 if (check_len) { 456 if (ccw.count > vdev->config_len) { 457 ret = -EINVAL; 458 break; 459 } 460 } 461 len = MIN(ccw.count, vdev->config_len); 462 if (!ccw.cda) { 463 ret = -EFAULT; 464 } else { 465 ret = ccw_dstream_read_buf(&sch->cds, vdev->config, len); 466 if (!ret) { 467 virtio_bus_set_vdev_config(&dev->bus, vdev->config); 468 sch->curr_status.scsw.count = ccw.count - len; 469 } 470 } 471 break; 472 case CCW_CMD_READ_STATUS: 473 if (check_len) { 474 if (ccw.count != sizeof(status)) { 475 ret = -EINVAL; 476 break; 477 } 478 } else if (ccw.count < sizeof(status)) { 479 /* Can't execute command. */ 480 ret = -EINVAL; 481 break; 482 } 483 if (!ccw.cda) { 484 ret = -EFAULT; 485 } else { 486 address_space_stb(&address_space_memory, ccw.cda, vdev->status, 487 MEMTXATTRS_UNSPECIFIED, NULL); 488 sch->curr_status.scsw.count = ccw.count - sizeof(vdev->status); 489 ret = 0; 490 } 491 break; 492 case CCW_CMD_WRITE_STATUS: 493 if (check_len) { 494 if (ccw.count != sizeof(status)) { 495 ret = -EINVAL; 496 break; 497 } 498 } else if (ccw.count < sizeof(status)) { 499 /* Can't execute command. */ 500 ret = -EINVAL; 501 break; 502 } 503 if (!ccw.cda) { 504 ret = -EFAULT; 505 } else { 506 ccw_dstream_read(&sch->cds, status); 507 if (!(status & VIRTIO_CONFIG_S_DRIVER_OK)) { 508 virtio_ccw_stop_ioeventfd(dev); 509 } 510 if (virtio_set_status(vdev, status) == 0) { 511 if (vdev->status == 0) { 512 virtio_ccw_reset_virtio(dev, vdev); 513 } 514 if (status & VIRTIO_CONFIG_S_DRIVER_OK) { 515 virtio_ccw_start_ioeventfd(dev); 516 } 517 sch->curr_status.scsw.count = ccw.count - sizeof(status); 518 ret = 0; 519 } else { 520 /* Trigger a command reject. */ 521 ret = -ENOSYS; 522 } 523 } 524 break; 525 case CCW_CMD_SET_IND: 526 if (check_len) { 527 if (ccw.count != sizeof(indicators)) { 528 ret = -EINVAL; 529 break; 530 } 531 } else if (ccw.count < sizeof(indicators)) { 532 /* Can't execute command. */ 533 ret = -EINVAL; 534 break; 535 } 536 if (sch->thinint_active) { 537 /* Trigger a command reject. */ 538 ret = -ENOSYS; 539 break; 540 } 541 if (virtio_get_num_queues(vdev) > NR_CLASSIC_INDICATOR_BITS) { 542 /* More queues than indicator bits --> trigger a reject */ 543 ret = -ENOSYS; 544 break; 545 } 546 if (!ccw.cda) { 547 ret = -EFAULT; 548 } else { 549 ccw_dstream_read(&sch->cds, indicators); 550 be64_to_cpus(&indicators); 551 dev->indicators = get_indicator(indicators, sizeof(uint64_t)); 552 sch->curr_status.scsw.count = ccw.count - sizeof(indicators); 553 ret = 0; 554 } 555 break; 556 case CCW_CMD_SET_CONF_IND: 557 if (check_len) { 558 if (ccw.count != sizeof(indicators)) { 559 ret = -EINVAL; 560 break; 561 } 562 } else if (ccw.count < sizeof(indicators)) { 563 /* Can't execute command. */ 564 ret = -EINVAL; 565 break; 566 } 567 if (!ccw.cda) { 568 ret = -EFAULT; 569 } else { 570 ccw_dstream_read(&sch->cds, indicators); 571 be64_to_cpus(&indicators); 572 dev->indicators2 = get_indicator(indicators, sizeof(uint64_t)); 573 sch->curr_status.scsw.count = ccw.count - sizeof(indicators); 574 ret = 0; 575 } 576 break; 577 case CCW_CMD_READ_VQ_CONF: 578 if (check_len) { 579 if (ccw.count != sizeof(vq_config)) { 580 ret = -EINVAL; 581 break; 582 } 583 } else if (ccw.count < sizeof(vq_config)) { 584 /* Can't execute command. */ 585 ret = -EINVAL; 586 break; 587 } 588 if (!ccw.cda) { 589 ret = -EFAULT; 590 } else { 591 ccw_dstream_read(&sch->cds, vq_config.index); 592 be16_to_cpus(&vq_config.index); 593 if (vq_config.index >= VIRTIO_QUEUE_MAX) { 594 ret = -EINVAL; 595 break; 596 } 597 vq_config.num_max = virtio_queue_get_num(vdev, 598 vq_config.index); 599 cpu_to_be16s(&vq_config.num_max); 600 ccw_dstream_write(&sch->cds, vq_config.num_max); 601 sch->curr_status.scsw.count = ccw.count - sizeof(vq_config); 602 ret = 0; 603 } 604 break; 605 case CCW_CMD_SET_IND_ADAPTER: 606 if (check_len) { 607 if (ccw.count != sizeof(thinint)) { 608 ret = -EINVAL; 609 break; 610 } 611 } else if (ccw.count < sizeof(thinint)) { 612 /* Can't execute command. */ 613 ret = -EINVAL; 614 break; 615 } 616 if (!ccw.cda) { 617 ret = -EFAULT; 618 } else if (dev->indicators && !sch->thinint_active) { 619 /* Trigger a command reject. */ 620 ret = -ENOSYS; 621 } else { 622 if (ccw_dstream_read(&sch->cds, thinint)) { 623 ret = -EFAULT; 624 } else { 625 be64_to_cpus(&thinint.ind_bit); 626 be64_to_cpus(&thinint.summary_indicator); 627 be64_to_cpus(&thinint.device_indicator); 628 629 dev->summary_indicator = 630 get_indicator(thinint.summary_indicator, sizeof(uint8_t)); 631 dev->indicators = 632 get_indicator(thinint.device_indicator, 633 thinint.ind_bit / 8 + 1); 634 dev->thinint_isc = thinint.isc; 635 dev->routes.adapter.ind_offset = thinint.ind_bit; 636 dev->routes.adapter.summary_offset = 7; 637 dev->routes.adapter.adapter_id = css_get_adapter_id( 638 CSS_IO_ADAPTER_VIRTIO, 639 dev->thinint_isc); 640 sch->thinint_active = ((dev->indicators != NULL) && 641 (dev->summary_indicator != NULL)); 642 sch->curr_status.scsw.count = ccw.count - sizeof(thinint); 643 ret = 0; 644 } 645 } 646 break; 647 case CCW_CMD_SET_VIRTIO_REV: 648 len = sizeof(revinfo); 649 if (ccw.count < len) { 650 ret = -EINVAL; 651 break; 652 } 653 if (!ccw.cda) { 654 ret = -EFAULT; 655 break; 656 } 657 ccw_dstream_read_buf(&sch->cds, &revinfo, 4); 658 be16_to_cpus(&revinfo.revision); 659 be16_to_cpus(&revinfo.length); 660 if (ccw.count < len + revinfo.length || 661 (check_len && ccw.count > len + revinfo.length)) { 662 ret = -EINVAL; 663 break; 664 } 665 /* 666 * Once we start to support revisions with additional data, we'll 667 * need to fetch it here. Nothing to do for now, though. 668 */ 669 if (dev->revision >= 0 || 670 revinfo.revision > virtio_ccw_rev_max(dev) || 671 (dev->force_revision_1 && !revinfo.revision)) { 672 ret = -ENOSYS; 673 break; 674 } 675 ret = 0; 676 dev->revision = revinfo.revision; 677 break; 678 default: 679 ret = -ENOSYS; 680 break; 681 } 682 return ret; 683 } 684 685 static void virtio_sch_disable_cb(SubchDev *sch) 686 { 687 VirtioCcwDevice *dev = sch->driver_data; 688 689 dev->revision = -1; 690 } 691 692 static void virtio_ccw_device_realize(VirtioCcwDevice *dev, Error **errp) 693 { 694 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_GET_CLASS(dev); 695 CcwDevice *ccw_dev = CCW_DEVICE(dev); 696 CCWDeviceClass *ck = CCW_DEVICE_GET_CLASS(ccw_dev); 697 DeviceState *parent = DEVICE(ccw_dev); 698 BusState *qbus = qdev_get_parent_bus(parent); 699 VirtualCssBus *cbus = VIRTUAL_CSS_BUS(qbus); 700 SubchDev *sch; 701 Error *err = NULL; 702 703 sch = css_create_sch(ccw_dev->devno, cbus->squash_mcss, errp); 704 if (!sch) { 705 return; 706 } 707 if (!virtio_ccw_rev_max(dev) && dev->force_revision_1) { 708 error_setg(&err, "Invalid value of property max_rev " 709 "(is %d expected >= 1)", virtio_ccw_rev_max(dev)); 710 goto out_err; 711 } 712 713 sch->driver_data = dev; 714 sch->ccw_cb = virtio_ccw_cb; 715 sch->disable_cb = virtio_sch_disable_cb; 716 sch->id.reserved = 0xff; 717 sch->id.cu_type = VIRTIO_CCW_CU_TYPE; 718 sch->do_subchannel_work = do_subchannel_work_virtual; 719 ccw_dev->sch = sch; 720 dev->indicators = NULL; 721 dev->revision = -1; 722 css_sch_build_virtual_schib(sch, 0, VIRTIO_CCW_CHPID_TYPE); 723 724 trace_virtio_ccw_new_device( 725 sch->cssid, sch->ssid, sch->schid, sch->devno, 726 ccw_dev->devno.valid ? "user-configured" : "auto-configured"); 727 728 if (kvm_enabled() && !kvm_eventfds_enabled()) { 729 dev->flags &= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD; 730 } 731 732 if (k->realize) { 733 k->realize(dev, &err); 734 if (err) { 735 goto out_err; 736 } 737 } 738 739 ck->realize(ccw_dev, &err); 740 if (err) { 741 goto out_err; 742 } 743 744 return; 745 746 out_err: 747 error_propagate(errp, err); 748 css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL); 749 ccw_dev->sch = NULL; 750 g_free(sch); 751 } 752 753 static void virtio_ccw_unrealize(VirtioCcwDevice *dev, Error **errp) 754 { 755 CcwDevice *ccw_dev = CCW_DEVICE(dev); 756 SubchDev *sch = ccw_dev->sch; 757 758 if (sch) { 759 css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL); 760 g_free(sch); 761 ccw_dev->sch = NULL; 762 } 763 if (dev->indicators) { 764 release_indicator(&dev->routes.adapter, dev->indicators); 765 dev->indicators = NULL; 766 } 767 } 768 769 static void virtio_ccw_net_realize(VirtioCcwDevice *ccw_dev, Error **errp) 770 { 771 DeviceState *qdev = DEVICE(ccw_dev); 772 VirtIONetCcw *dev = VIRTIO_NET_CCW(ccw_dev); 773 DeviceState *vdev = DEVICE(&dev->vdev); 774 775 virtio_net_set_netclient_name(&dev->vdev, qdev->id, 776 object_get_typename(OBJECT(qdev))); 777 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 778 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 779 } 780 781 static void virtio_ccw_net_instance_init(Object *obj) 782 { 783 VirtIONetCcw *dev = VIRTIO_NET_CCW(obj); 784 785 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 786 TYPE_VIRTIO_NET); 787 object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), 788 "bootindex", &error_abort); 789 } 790 791 static void virtio_ccw_blk_realize(VirtioCcwDevice *ccw_dev, Error **errp) 792 { 793 VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(ccw_dev); 794 DeviceState *vdev = DEVICE(&dev->vdev); 795 796 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 797 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 798 } 799 800 static void virtio_ccw_blk_instance_init(Object *obj) 801 { 802 VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(obj); 803 804 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 805 TYPE_VIRTIO_BLK); 806 object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), 807 "bootindex", &error_abort); 808 } 809 810 static void virtio_ccw_serial_realize(VirtioCcwDevice *ccw_dev, Error **errp) 811 { 812 VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(ccw_dev); 813 DeviceState *vdev = DEVICE(&dev->vdev); 814 DeviceState *proxy = DEVICE(ccw_dev); 815 char *bus_name; 816 817 /* 818 * For command line compatibility, this sets the virtio-serial-device bus 819 * name as before. 820 */ 821 if (proxy->id) { 822 bus_name = g_strdup_printf("%s.0", proxy->id); 823 virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); 824 g_free(bus_name); 825 } 826 827 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 828 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 829 } 830 831 832 static void virtio_ccw_serial_instance_init(Object *obj) 833 { 834 VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(obj); 835 836 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 837 TYPE_VIRTIO_SERIAL); 838 } 839 840 static void virtio_ccw_balloon_realize(VirtioCcwDevice *ccw_dev, Error **errp) 841 { 842 VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(ccw_dev); 843 DeviceState *vdev = DEVICE(&dev->vdev); 844 845 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 846 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 847 } 848 849 static void virtio_ccw_balloon_instance_init(Object *obj) 850 { 851 VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(obj); 852 853 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 854 TYPE_VIRTIO_BALLOON); 855 object_property_add_alias(obj, "guest-stats", OBJECT(&dev->vdev), 856 "guest-stats", &error_abort); 857 object_property_add_alias(obj, "guest-stats-polling-interval", 858 OBJECT(&dev->vdev), 859 "guest-stats-polling-interval", &error_abort); 860 } 861 862 static void virtio_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp) 863 { 864 VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(ccw_dev); 865 DeviceState *vdev = DEVICE(&dev->vdev); 866 DeviceState *qdev = DEVICE(ccw_dev); 867 char *bus_name; 868 869 /* 870 * For command line compatibility, this sets the virtio-scsi-device bus 871 * name as before. 872 */ 873 if (qdev->id) { 874 bus_name = g_strdup_printf("%s.0", qdev->id); 875 virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); 876 g_free(bus_name); 877 } 878 879 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 880 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 881 } 882 883 static void virtio_ccw_scsi_instance_init(Object *obj) 884 { 885 VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(obj); 886 887 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 888 TYPE_VIRTIO_SCSI); 889 } 890 891 #ifdef CONFIG_VHOST_SCSI 892 static void vhost_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp) 893 { 894 VHostSCSICcw *dev = VHOST_SCSI_CCW(ccw_dev); 895 DeviceState *vdev = DEVICE(&dev->vdev); 896 897 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 898 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 899 } 900 901 static void vhost_ccw_scsi_instance_init(Object *obj) 902 { 903 VHostSCSICcw *dev = VHOST_SCSI_CCW(obj); 904 905 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 906 TYPE_VHOST_SCSI); 907 } 908 #endif 909 910 static void virtio_ccw_rng_realize(VirtioCcwDevice *ccw_dev, Error **errp) 911 { 912 VirtIORNGCcw *dev = VIRTIO_RNG_CCW(ccw_dev); 913 DeviceState *vdev = DEVICE(&dev->vdev); 914 Error *err = NULL; 915 916 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 917 object_property_set_bool(OBJECT(vdev), true, "realized", &err); 918 if (err) { 919 error_propagate(errp, err); 920 return; 921 } 922 923 object_property_set_link(OBJECT(dev), 924 OBJECT(dev->vdev.conf.rng), "rng", 925 NULL); 926 } 927 928 static void virtio_ccw_crypto_realize(VirtioCcwDevice *ccw_dev, Error **errp) 929 { 930 VirtIOCryptoCcw *dev = VIRTIO_CRYPTO_CCW(ccw_dev); 931 DeviceState *vdev = DEVICE(&dev->vdev); 932 Error *err = NULL; 933 934 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 935 object_property_set_bool(OBJECT(vdev), true, "realized", &err); 936 if (err) { 937 error_propagate(errp, err); 938 return; 939 } 940 941 object_property_set_link(OBJECT(vdev), 942 OBJECT(dev->vdev.conf.cryptodev), "cryptodev", 943 NULL); 944 } 945 946 static void virtio_ccw_gpu_realize(VirtioCcwDevice *ccw_dev, Error **errp) 947 { 948 VirtIOGPUCcw *dev = VIRTIO_GPU_CCW(ccw_dev); 949 DeviceState *vdev = DEVICE(&dev->vdev); 950 951 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 952 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 953 } 954 955 static void virtio_ccw_input_realize(VirtioCcwDevice *ccw_dev, Error **errp) 956 { 957 VirtIOInputCcw *dev = VIRTIO_INPUT_CCW(ccw_dev); 958 DeviceState *vdev = DEVICE(&dev->vdev); 959 960 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 961 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 962 } 963 964 /* DeviceState to VirtioCcwDevice. Note: used on datapath, 965 * be careful and test performance if you change this. 966 */ 967 static inline VirtioCcwDevice *to_virtio_ccw_dev_fast(DeviceState *d) 968 { 969 CcwDevice *ccw_dev = to_ccw_dev_fast(d); 970 971 return container_of(ccw_dev, VirtioCcwDevice, parent_obj); 972 } 973 974 static uint8_t virtio_set_ind_atomic(SubchDev *sch, uint64_t ind_loc, 975 uint8_t to_be_set) 976 { 977 uint8_t ind_old, ind_new; 978 hwaddr len = 1; 979 uint8_t *ind_addr; 980 981 ind_addr = cpu_physical_memory_map(ind_loc, &len, 1); 982 if (!ind_addr) { 983 error_report("%s(%x.%x.%04x): unable to access indicator", 984 __func__, sch->cssid, sch->ssid, sch->schid); 985 return -1; 986 } 987 do { 988 ind_old = *ind_addr; 989 ind_new = ind_old | to_be_set; 990 } while (atomic_cmpxchg(ind_addr, ind_old, ind_new) != ind_old); 991 trace_virtio_ccw_set_ind(ind_loc, ind_old, ind_new); 992 cpu_physical_memory_unmap(ind_addr, len, 1, len); 993 994 return ind_old; 995 } 996 997 static void virtio_ccw_notify(DeviceState *d, uint16_t vector) 998 { 999 VirtioCcwDevice *dev = to_virtio_ccw_dev_fast(d); 1000 CcwDevice *ccw_dev = to_ccw_dev_fast(d); 1001 SubchDev *sch = ccw_dev->sch; 1002 uint64_t indicators; 1003 1004 /* queue indicators + secondary indicators */ 1005 if (vector >= VIRTIO_QUEUE_MAX + 64) { 1006 return; 1007 } 1008 1009 if (vector < VIRTIO_QUEUE_MAX) { 1010 if (!dev->indicators) { 1011 return; 1012 } 1013 if (sch->thinint_active) { 1014 /* 1015 * In the adapter interrupt case, indicators points to a 1016 * memory area that may be (way) larger than 64 bit and 1017 * ind_bit indicates the start of the indicators in a big 1018 * endian notation. 1019 */ 1020 uint64_t ind_bit = dev->routes.adapter.ind_offset; 1021 1022 virtio_set_ind_atomic(sch, dev->indicators->addr + 1023 (ind_bit + vector) / 8, 1024 0x80 >> ((ind_bit + vector) % 8)); 1025 if (!virtio_set_ind_atomic(sch, dev->summary_indicator->addr, 1026 0x01)) { 1027 css_adapter_interrupt(CSS_IO_ADAPTER_VIRTIO, dev->thinint_isc); 1028 } 1029 } else { 1030 indicators = address_space_ldq(&address_space_memory, 1031 dev->indicators->addr, 1032 MEMTXATTRS_UNSPECIFIED, 1033 NULL); 1034 indicators |= 1ULL << vector; 1035 address_space_stq(&address_space_memory, dev->indicators->addr, 1036 indicators, MEMTXATTRS_UNSPECIFIED, NULL); 1037 css_conditional_io_interrupt(sch); 1038 } 1039 } else { 1040 if (!dev->indicators2) { 1041 return; 1042 } 1043 vector = 0; 1044 indicators = address_space_ldq(&address_space_memory, 1045 dev->indicators2->addr, 1046 MEMTXATTRS_UNSPECIFIED, 1047 NULL); 1048 indicators |= 1ULL << vector; 1049 address_space_stq(&address_space_memory, dev->indicators2->addr, 1050 indicators, MEMTXATTRS_UNSPECIFIED, NULL); 1051 css_conditional_io_interrupt(sch); 1052 } 1053 } 1054 1055 static void virtio_ccw_reset(DeviceState *d) 1056 { 1057 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1058 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1059 VirtIOCCWDeviceClass *vdc = VIRTIO_CCW_DEVICE_GET_CLASS(dev); 1060 1061 virtio_ccw_reset_virtio(dev, vdev); 1062 if (vdc->parent_reset) { 1063 vdc->parent_reset(d); 1064 } 1065 } 1066 1067 static void virtio_ccw_vmstate_change(DeviceState *d, bool running) 1068 { 1069 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1070 1071 if (running) { 1072 virtio_ccw_start_ioeventfd(dev); 1073 } else { 1074 virtio_ccw_stop_ioeventfd(dev); 1075 } 1076 } 1077 1078 static bool virtio_ccw_query_guest_notifiers(DeviceState *d) 1079 { 1080 CcwDevice *dev = CCW_DEVICE(d); 1081 1082 return !!(dev->sch->curr_status.pmcw.flags & PMCW_FLAGS_MASK_ENA); 1083 } 1084 1085 static int virtio_ccw_get_mappings(VirtioCcwDevice *dev) 1086 { 1087 int r; 1088 CcwDevice *ccw_dev = CCW_DEVICE(dev); 1089 1090 if (!ccw_dev->sch->thinint_active) { 1091 return -EINVAL; 1092 } 1093 1094 r = map_indicator(&dev->routes.adapter, dev->summary_indicator); 1095 if (r) { 1096 return r; 1097 } 1098 r = map_indicator(&dev->routes.adapter, dev->indicators); 1099 if (r) { 1100 return r; 1101 } 1102 dev->routes.adapter.summary_addr = dev->summary_indicator->map; 1103 dev->routes.adapter.ind_addr = dev->indicators->map; 1104 1105 return 0; 1106 } 1107 1108 static int virtio_ccw_setup_irqroutes(VirtioCcwDevice *dev, int nvqs) 1109 { 1110 int i; 1111 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1112 int ret; 1113 S390FLICState *fs = s390_get_flic(); 1114 S390FLICStateClass *fsc = s390_get_flic_class(fs); 1115 1116 ret = virtio_ccw_get_mappings(dev); 1117 if (ret) { 1118 return ret; 1119 } 1120 for (i = 0; i < nvqs; i++) { 1121 if (!virtio_queue_get_num(vdev, i)) { 1122 break; 1123 } 1124 } 1125 dev->routes.num_routes = i; 1126 return fsc->add_adapter_routes(fs, &dev->routes); 1127 } 1128 1129 static void virtio_ccw_release_irqroutes(VirtioCcwDevice *dev, int nvqs) 1130 { 1131 S390FLICState *fs = s390_get_flic(); 1132 S390FLICStateClass *fsc = s390_get_flic_class(fs); 1133 1134 fsc->release_adapter_routes(fs, &dev->routes); 1135 } 1136 1137 static int virtio_ccw_add_irqfd(VirtioCcwDevice *dev, int n) 1138 { 1139 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1140 VirtQueue *vq = virtio_get_queue(vdev, n); 1141 EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); 1142 1143 return kvm_irqchip_add_irqfd_notifier_gsi(kvm_state, notifier, NULL, 1144 dev->routes.gsi[n]); 1145 } 1146 1147 static void virtio_ccw_remove_irqfd(VirtioCcwDevice *dev, int n) 1148 { 1149 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1150 VirtQueue *vq = virtio_get_queue(vdev, n); 1151 EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); 1152 int ret; 1153 1154 ret = kvm_irqchip_remove_irqfd_notifier_gsi(kvm_state, notifier, 1155 dev->routes.gsi[n]); 1156 assert(ret == 0); 1157 } 1158 1159 static int virtio_ccw_set_guest_notifier(VirtioCcwDevice *dev, int n, 1160 bool assign, bool with_irqfd) 1161 { 1162 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1163 VirtQueue *vq = virtio_get_queue(vdev, n); 1164 EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); 1165 VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); 1166 1167 if (assign) { 1168 int r = event_notifier_init(notifier, 0); 1169 1170 if (r < 0) { 1171 return r; 1172 } 1173 virtio_queue_set_guest_notifier_fd_handler(vq, true, with_irqfd); 1174 if (with_irqfd) { 1175 r = virtio_ccw_add_irqfd(dev, n); 1176 if (r) { 1177 virtio_queue_set_guest_notifier_fd_handler(vq, false, 1178 with_irqfd); 1179 return r; 1180 } 1181 } 1182 /* 1183 * We do not support individual masking for channel devices, so we 1184 * need to manually trigger any guest masking callbacks here. 1185 */ 1186 if (k->guest_notifier_mask && vdev->use_guest_notifier_mask) { 1187 k->guest_notifier_mask(vdev, n, false); 1188 } 1189 /* get lost events and re-inject */ 1190 if (k->guest_notifier_pending && 1191 k->guest_notifier_pending(vdev, n)) { 1192 event_notifier_set(notifier); 1193 } 1194 } else { 1195 if (k->guest_notifier_mask && vdev->use_guest_notifier_mask) { 1196 k->guest_notifier_mask(vdev, n, true); 1197 } 1198 if (with_irqfd) { 1199 virtio_ccw_remove_irqfd(dev, n); 1200 } 1201 virtio_queue_set_guest_notifier_fd_handler(vq, false, with_irqfd); 1202 event_notifier_cleanup(notifier); 1203 } 1204 return 0; 1205 } 1206 1207 static int virtio_ccw_set_guest_notifiers(DeviceState *d, int nvqs, 1208 bool assigned) 1209 { 1210 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1211 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1212 CcwDevice *ccw_dev = CCW_DEVICE(d); 1213 bool with_irqfd = ccw_dev->sch->thinint_active && kvm_irqfds_enabled(); 1214 int r, n; 1215 1216 if (with_irqfd && assigned) { 1217 /* irq routes need to be set up before assigning irqfds */ 1218 r = virtio_ccw_setup_irqroutes(dev, nvqs); 1219 if (r < 0) { 1220 goto irqroute_error; 1221 } 1222 } 1223 for (n = 0; n < nvqs; n++) { 1224 if (!virtio_queue_get_num(vdev, n)) { 1225 break; 1226 } 1227 r = virtio_ccw_set_guest_notifier(dev, n, assigned, with_irqfd); 1228 if (r < 0) { 1229 goto assign_error; 1230 } 1231 } 1232 if (with_irqfd && !assigned) { 1233 /* release irq routes after irqfds have been released */ 1234 virtio_ccw_release_irqroutes(dev, nvqs); 1235 } 1236 return 0; 1237 1238 assign_error: 1239 while (--n >= 0) { 1240 virtio_ccw_set_guest_notifier(dev, n, !assigned, false); 1241 } 1242 irqroute_error: 1243 if (with_irqfd && assigned) { 1244 virtio_ccw_release_irqroutes(dev, nvqs); 1245 } 1246 return r; 1247 } 1248 1249 static void virtio_ccw_save_queue(DeviceState *d, int n, QEMUFile *f) 1250 { 1251 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1252 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1253 1254 qemu_put_be16(f, virtio_queue_vector(vdev, n)); 1255 } 1256 1257 static int virtio_ccw_load_queue(DeviceState *d, int n, QEMUFile *f) 1258 { 1259 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1260 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1261 uint16_t vector; 1262 1263 qemu_get_be16s(f, &vector); 1264 virtio_queue_set_vector(vdev, n , vector); 1265 1266 return 0; 1267 } 1268 1269 static void virtio_ccw_save_config(DeviceState *d, QEMUFile *f) 1270 { 1271 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1272 vmstate_save_state(f, &vmstate_virtio_ccw_dev, dev, NULL); 1273 } 1274 1275 static int virtio_ccw_load_config(DeviceState *d, QEMUFile *f) 1276 { 1277 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1278 return vmstate_load_state(f, &vmstate_virtio_ccw_dev, dev, 1); 1279 } 1280 1281 static void virtio_ccw_pre_plugged(DeviceState *d, Error **errp) 1282 { 1283 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1284 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1285 1286 if (dev->max_rev >= 1) { 1287 virtio_add_feature(&vdev->host_features, VIRTIO_F_VERSION_1); 1288 } 1289 } 1290 1291 /* This is called by virtio-bus just after the device is plugged. */ 1292 static void virtio_ccw_device_plugged(DeviceState *d, Error **errp) 1293 { 1294 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1295 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1296 CcwDevice *ccw_dev = CCW_DEVICE(d); 1297 SubchDev *sch = ccw_dev->sch; 1298 int n = virtio_get_num_queues(vdev); 1299 S390FLICState *flic = s390_get_flic(); 1300 1301 if (!virtio_has_feature(vdev->host_features, VIRTIO_F_VERSION_1)) { 1302 dev->max_rev = 0; 1303 } 1304 1305 if (virtio_get_num_queues(vdev) > VIRTIO_QUEUE_MAX) { 1306 error_setg(errp, "The number of virtqueues %d " 1307 "exceeds virtio limit %d", n, 1308 VIRTIO_QUEUE_MAX); 1309 return; 1310 } 1311 if (virtio_get_num_queues(vdev) > flic->adapter_routes_max_batch) { 1312 error_setg(errp, "The number of virtqueues %d " 1313 "exceeds flic adapter route limit %d", n, 1314 flic->adapter_routes_max_batch); 1315 return; 1316 } 1317 1318 sch->id.cu_model = virtio_bus_get_vdev_id(&dev->bus); 1319 1320 1321 css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid, 1322 d->hotplugged, 1); 1323 } 1324 1325 static void virtio_ccw_device_unplugged(DeviceState *d) 1326 { 1327 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1328 1329 virtio_ccw_stop_ioeventfd(dev); 1330 } 1331 /**************** Virtio-ccw Bus Device Descriptions *******************/ 1332 1333 static Property virtio_ccw_net_properties[] = { 1334 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1335 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1336 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1337 VIRTIO_CCW_MAX_REV), 1338 DEFINE_PROP_END_OF_LIST(), 1339 }; 1340 1341 static void virtio_ccw_net_class_init(ObjectClass *klass, void *data) 1342 { 1343 DeviceClass *dc = DEVICE_CLASS(klass); 1344 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1345 1346 k->realize = virtio_ccw_net_realize; 1347 k->unrealize = virtio_ccw_unrealize; 1348 dc->props = virtio_ccw_net_properties; 1349 set_bit(DEVICE_CATEGORY_NETWORK, dc->categories); 1350 } 1351 1352 static const TypeInfo virtio_ccw_net = { 1353 .name = TYPE_VIRTIO_NET_CCW, 1354 .parent = TYPE_VIRTIO_CCW_DEVICE, 1355 .instance_size = sizeof(VirtIONetCcw), 1356 .instance_init = virtio_ccw_net_instance_init, 1357 .class_init = virtio_ccw_net_class_init, 1358 }; 1359 1360 static Property virtio_ccw_blk_properties[] = { 1361 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1362 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1363 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1364 VIRTIO_CCW_MAX_REV), 1365 DEFINE_PROP_END_OF_LIST(), 1366 }; 1367 1368 static void virtio_ccw_blk_class_init(ObjectClass *klass, void *data) 1369 { 1370 DeviceClass *dc = DEVICE_CLASS(klass); 1371 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1372 1373 k->realize = virtio_ccw_blk_realize; 1374 k->unrealize = virtio_ccw_unrealize; 1375 dc->props = virtio_ccw_blk_properties; 1376 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 1377 } 1378 1379 static const TypeInfo virtio_ccw_blk = { 1380 .name = TYPE_VIRTIO_BLK_CCW, 1381 .parent = TYPE_VIRTIO_CCW_DEVICE, 1382 .instance_size = sizeof(VirtIOBlkCcw), 1383 .instance_init = virtio_ccw_blk_instance_init, 1384 .class_init = virtio_ccw_blk_class_init, 1385 }; 1386 1387 static Property virtio_ccw_serial_properties[] = { 1388 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1389 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1390 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1391 VIRTIO_CCW_MAX_REV), 1392 DEFINE_PROP_END_OF_LIST(), 1393 }; 1394 1395 static void virtio_ccw_serial_class_init(ObjectClass *klass, void *data) 1396 { 1397 DeviceClass *dc = DEVICE_CLASS(klass); 1398 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1399 1400 k->realize = virtio_ccw_serial_realize; 1401 k->unrealize = virtio_ccw_unrealize; 1402 dc->props = virtio_ccw_serial_properties; 1403 set_bit(DEVICE_CATEGORY_INPUT, dc->categories); 1404 } 1405 1406 static const TypeInfo virtio_ccw_serial = { 1407 .name = TYPE_VIRTIO_SERIAL_CCW, 1408 .parent = TYPE_VIRTIO_CCW_DEVICE, 1409 .instance_size = sizeof(VirtioSerialCcw), 1410 .instance_init = virtio_ccw_serial_instance_init, 1411 .class_init = virtio_ccw_serial_class_init, 1412 }; 1413 1414 static Property virtio_ccw_balloon_properties[] = { 1415 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1416 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1417 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1418 VIRTIO_CCW_MAX_REV), 1419 DEFINE_PROP_END_OF_LIST(), 1420 }; 1421 1422 static void virtio_ccw_balloon_class_init(ObjectClass *klass, void *data) 1423 { 1424 DeviceClass *dc = DEVICE_CLASS(klass); 1425 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1426 1427 k->realize = virtio_ccw_balloon_realize; 1428 k->unrealize = virtio_ccw_unrealize; 1429 dc->props = virtio_ccw_balloon_properties; 1430 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 1431 } 1432 1433 static const TypeInfo virtio_ccw_balloon = { 1434 .name = TYPE_VIRTIO_BALLOON_CCW, 1435 .parent = TYPE_VIRTIO_CCW_DEVICE, 1436 .instance_size = sizeof(VirtIOBalloonCcw), 1437 .instance_init = virtio_ccw_balloon_instance_init, 1438 .class_init = virtio_ccw_balloon_class_init, 1439 }; 1440 1441 static Property virtio_ccw_scsi_properties[] = { 1442 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1443 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1444 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1445 VIRTIO_CCW_MAX_REV), 1446 DEFINE_PROP_END_OF_LIST(), 1447 }; 1448 1449 static void virtio_ccw_scsi_class_init(ObjectClass *klass, void *data) 1450 { 1451 DeviceClass *dc = DEVICE_CLASS(klass); 1452 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1453 1454 k->realize = virtio_ccw_scsi_realize; 1455 k->unrealize = virtio_ccw_unrealize; 1456 dc->props = virtio_ccw_scsi_properties; 1457 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 1458 } 1459 1460 static const TypeInfo virtio_ccw_scsi = { 1461 .name = TYPE_VIRTIO_SCSI_CCW, 1462 .parent = TYPE_VIRTIO_CCW_DEVICE, 1463 .instance_size = sizeof(VirtIOSCSICcw), 1464 .instance_init = virtio_ccw_scsi_instance_init, 1465 .class_init = virtio_ccw_scsi_class_init, 1466 }; 1467 1468 #ifdef CONFIG_VHOST_SCSI 1469 static Property vhost_ccw_scsi_properties[] = { 1470 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1471 VIRTIO_CCW_MAX_REV), 1472 DEFINE_PROP_END_OF_LIST(), 1473 }; 1474 1475 static void vhost_ccw_scsi_class_init(ObjectClass *klass, void *data) 1476 { 1477 DeviceClass *dc = DEVICE_CLASS(klass); 1478 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1479 1480 k->realize = vhost_ccw_scsi_realize; 1481 k->unrealize = virtio_ccw_unrealize; 1482 dc->props = vhost_ccw_scsi_properties; 1483 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 1484 } 1485 1486 static const TypeInfo vhost_ccw_scsi = { 1487 .name = TYPE_VHOST_SCSI_CCW, 1488 .parent = TYPE_VIRTIO_CCW_DEVICE, 1489 .instance_size = sizeof(VHostSCSICcw), 1490 .instance_init = vhost_ccw_scsi_instance_init, 1491 .class_init = vhost_ccw_scsi_class_init, 1492 }; 1493 #endif 1494 1495 static void virtio_ccw_rng_instance_init(Object *obj) 1496 { 1497 VirtIORNGCcw *dev = VIRTIO_RNG_CCW(obj); 1498 1499 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1500 TYPE_VIRTIO_RNG); 1501 } 1502 1503 static Property virtio_ccw_rng_properties[] = { 1504 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1505 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1506 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1507 VIRTIO_CCW_MAX_REV), 1508 DEFINE_PROP_END_OF_LIST(), 1509 }; 1510 1511 static void virtio_ccw_rng_class_init(ObjectClass *klass, void *data) 1512 { 1513 DeviceClass *dc = DEVICE_CLASS(klass); 1514 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1515 1516 k->realize = virtio_ccw_rng_realize; 1517 k->unrealize = virtio_ccw_unrealize; 1518 dc->props = virtio_ccw_rng_properties; 1519 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 1520 } 1521 1522 static const TypeInfo virtio_ccw_rng = { 1523 .name = TYPE_VIRTIO_RNG_CCW, 1524 .parent = TYPE_VIRTIO_CCW_DEVICE, 1525 .instance_size = sizeof(VirtIORNGCcw), 1526 .instance_init = virtio_ccw_rng_instance_init, 1527 .class_init = virtio_ccw_rng_class_init, 1528 }; 1529 1530 static Property virtio_ccw_crypto_properties[] = { 1531 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1532 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1533 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1534 VIRTIO_CCW_MAX_REV), 1535 DEFINE_PROP_END_OF_LIST(), 1536 }; 1537 1538 static void virtio_ccw_crypto_instance_init(Object *obj) 1539 { 1540 VirtIOCryptoCcw *dev = VIRTIO_CRYPTO_CCW(obj); 1541 VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj); 1542 1543 ccw_dev->force_revision_1 = true; 1544 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1545 TYPE_VIRTIO_CRYPTO); 1546 } 1547 1548 static void virtio_ccw_crypto_class_init(ObjectClass *klass, void *data) 1549 { 1550 DeviceClass *dc = DEVICE_CLASS(klass); 1551 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1552 1553 k->realize = virtio_ccw_crypto_realize; 1554 k->unrealize = virtio_ccw_unrealize; 1555 dc->props = virtio_ccw_crypto_properties; 1556 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 1557 } 1558 1559 static const TypeInfo virtio_ccw_crypto = { 1560 .name = TYPE_VIRTIO_CRYPTO_CCW, 1561 .parent = TYPE_VIRTIO_CCW_DEVICE, 1562 .instance_size = sizeof(VirtIOCryptoCcw), 1563 .instance_init = virtio_ccw_crypto_instance_init, 1564 .class_init = virtio_ccw_crypto_class_init, 1565 }; 1566 1567 static Property virtio_ccw_gpu_properties[] = { 1568 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1569 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1570 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1571 VIRTIO_CCW_MAX_REV), 1572 DEFINE_PROP_END_OF_LIST(), 1573 }; 1574 1575 static void virtio_ccw_gpu_instance_init(Object *obj) 1576 { 1577 VirtIOGPUCcw *dev = VIRTIO_GPU_CCW(obj); 1578 VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj); 1579 1580 ccw_dev->force_revision_1 = true; 1581 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1582 TYPE_VIRTIO_GPU); 1583 } 1584 1585 static void virtio_ccw_gpu_class_init(ObjectClass *klass, void *data) 1586 { 1587 DeviceClass *dc = DEVICE_CLASS(klass); 1588 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1589 1590 k->realize = virtio_ccw_gpu_realize; 1591 k->unrealize = virtio_ccw_unrealize; 1592 dc->props = virtio_ccw_gpu_properties; 1593 dc->hotpluggable = false; 1594 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories); 1595 } 1596 1597 static const TypeInfo virtio_ccw_gpu = { 1598 .name = TYPE_VIRTIO_GPU_CCW, 1599 .parent = TYPE_VIRTIO_CCW_DEVICE, 1600 .instance_size = sizeof(VirtIOGPUCcw), 1601 .instance_init = virtio_ccw_gpu_instance_init, 1602 .class_init = virtio_ccw_gpu_class_init, 1603 }; 1604 1605 static Property virtio_ccw_input_properties[] = { 1606 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1607 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1608 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1609 VIRTIO_CCW_MAX_REV), 1610 DEFINE_PROP_END_OF_LIST(), 1611 }; 1612 1613 static void virtio_ccw_input_class_init(ObjectClass *klass, void *data) 1614 { 1615 DeviceClass *dc = DEVICE_CLASS(klass); 1616 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1617 1618 k->realize = virtio_ccw_input_realize; 1619 k->unrealize = virtio_ccw_unrealize; 1620 dc->props = virtio_ccw_input_properties; 1621 set_bit(DEVICE_CATEGORY_INPUT, dc->categories); 1622 } 1623 1624 static void virtio_ccw_keyboard_instance_init(Object *obj) 1625 { 1626 VirtIOInputHIDCcw *dev = VIRTIO_INPUT_HID_CCW(obj); 1627 VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj); 1628 1629 ccw_dev->force_revision_1 = true; 1630 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1631 TYPE_VIRTIO_KEYBOARD); 1632 } 1633 1634 static void virtio_ccw_mouse_instance_init(Object *obj) 1635 { 1636 VirtIOInputHIDCcw *dev = VIRTIO_INPUT_HID_CCW(obj); 1637 VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj); 1638 1639 ccw_dev->force_revision_1 = true; 1640 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1641 TYPE_VIRTIO_MOUSE); 1642 } 1643 1644 static void virtio_ccw_tablet_instance_init(Object *obj) 1645 { 1646 VirtIOInputHIDCcw *dev = VIRTIO_INPUT_HID_CCW(obj); 1647 VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj); 1648 1649 ccw_dev->force_revision_1 = true; 1650 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1651 TYPE_VIRTIO_TABLET); 1652 } 1653 1654 static const TypeInfo virtio_ccw_input = { 1655 .name = TYPE_VIRTIO_INPUT_CCW, 1656 .parent = TYPE_VIRTIO_CCW_DEVICE, 1657 .instance_size = sizeof(VirtIOInputCcw), 1658 .class_init = virtio_ccw_input_class_init, 1659 .abstract = true, 1660 }; 1661 1662 static const TypeInfo virtio_ccw_input_hid = { 1663 .name = TYPE_VIRTIO_INPUT_HID_CCW, 1664 .parent = TYPE_VIRTIO_INPUT_CCW, 1665 .instance_size = sizeof(VirtIOInputHIDCcw), 1666 .abstract = true, 1667 }; 1668 1669 static const TypeInfo virtio_ccw_keyboard = { 1670 .name = TYPE_VIRTIO_KEYBOARD_CCW, 1671 .parent = TYPE_VIRTIO_INPUT_HID_CCW, 1672 .instance_size = sizeof(VirtIOInputHIDCcw), 1673 .instance_init = virtio_ccw_keyboard_instance_init, 1674 }; 1675 1676 static const TypeInfo virtio_ccw_mouse = { 1677 .name = TYPE_VIRTIO_MOUSE_CCW, 1678 .parent = TYPE_VIRTIO_INPUT_HID_CCW, 1679 .instance_size = sizeof(VirtIOInputHIDCcw), 1680 .instance_init = virtio_ccw_mouse_instance_init, 1681 }; 1682 1683 static const TypeInfo virtio_ccw_tablet = { 1684 .name = TYPE_VIRTIO_TABLET_CCW, 1685 .parent = TYPE_VIRTIO_INPUT_HID_CCW, 1686 .instance_size = sizeof(VirtIOInputHIDCcw), 1687 .instance_init = virtio_ccw_tablet_instance_init, 1688 }; 1689 1690 static void virtio_ccw_busdev_realize(DeviceState *dev, Error **errp) 1691 { 1692 VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev; 1693 1694 virtio_ccw_bus_new(&_dev->bus, sizeof(_dev->bus), _dev); 1695 virtio_ccw_device_realize(_dev, errp); 1696 } 1697 1698 static void virtio_ccw_busdev_unrealize(DeviceState *dev, Error **errp) 1699 { 1700 VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev; 1701 VirtIOCCWDeviceClass *_info = VIRTIO_CCW_DEVICE_GET_CLASS(dev); 1702 1703 _info->unrealize(_dev, errp); 1704 } 1705 1706 static void virtio_ccw_busdev_unplug(HotplugHandler *hotplug_dev, 1707 DeviceState *dev, Error **errp) 1708 { 1709 VirtioCcwDevice *_dev = to_virtio_ccw_dev_fast(dev); 1710 1711 virtio_ccw_stop_ioeventfd(_dev); 1712 } 1713 1714 static void virtio_ccw_device_class_init(ObjectClass *klass, void *data) 1715 { 1716 DeviceClass *dc = DEVICE_CLASS(klass); 1717 CCWDeviceClass *k = CCW_DEVICE_CLASS(dc); 1718 VirtIOCCWDeviceClass *vdc = VIRTIO_CCW_DEVICE_CLASS(klass); 1719 1720 k->unplug = virtio_ccw_busdev_unplug; 1721 dc->realize = virtio_ccw_busdev_realize; 1722 dc->unrealize = virtio_ccw_busdev_unrealize; 1723 dc->bus_type = TYPE_VIRTUAL_CSS_BUS; 1724 device_class_set_parent_reset(dc, virtio_ccw_reset, &vdc->parent_reset); 1725 } 1726 1727 static const TypeInfo virtio_ccw_device_info = { 1728 .name = TYPE_VIRTIO_CCW_DEVICE, 1729 .parent = TYPE_CCW_DEVICE, 1730 .instance_size = sizeof(VirtioCcwDevice), 1731 .class_init = virtio_ccw_device_class_init, 1732 .class_size = sizeof(VirtIOCCWDeviceClass), 1733 .abstract = true, 1734 }; 1735 1736 /* virtio-ccw-bus */ 1737 1738 static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size, 1739 VirtioCcwDevice *dev) 1740 { 1741 DeviceState *qdev = DEVICE(dev); 1742 char virtio_bus_name[] = "virtio-bus"; 1743 1744 qbus_create_inplace(bus, bus_size, TYPE_VIRTIO_CCW_BUS, 1745 qdev, virtio_bus_name); 1746 } 1747 1748 static void virtio_ccw_bus_class_init(ObjectClass *klass, void *data) 1749 { 1750 VirtioBusClass *k = VIRTIO_BUS_CLASS(klass); 1751 BusClass *bus_class = BUS_CLASS(klass); 1752 1753 bus_class->max_dev = 1; 1754 k->notify = virtio_ccw_notify; 1755 k->vmstate_change = virtio_ccw_vmstate_change; 1756 k->query_guest_notifiers = virtio_ccw_query_guest_notifiers; 1757 k->set_guest_notifiers = virtio_ccw_set_guest_notifiers; 1758 k->save_queue = virtio_ccw_save_queue; 1759 k->load_queue = virtio_ccw_load_queue; 1760 k->save_config = virtio_ccw_save_config; 1761 k->load_config = virtio_ccw_load_config; 1762 k->pre_plugged = virtio_ccw_pre_plugged; 1763 k->device_plugged = virtio_ccw_device_plugged; 1764 k->device_unplugged = virtio_ccw_device_unplugged; 1765 k->ioeventfd_enabled = virtio_ccw_ioeventfd_enabled; 1766 k->ioeventfd_assign = virtio_ccw_ioeventfd_assign; 1767 } 1768 1769 static const TypeInfo virtio_ccw_bus_info = { 1770 .name = TYPE_VIRTIO_CCW_BUS, 1771 .parent = TYPE_VIRTIO_BUS, 1772 .instance_size = sizeof(VirtioCcwBusState), 1773 .class_init = virtio_ccw_bus_class_init, 1774 }; 1775 1776 #ifdef CONFIG_VIRTFS 1777 static Property virtio_ccw_9p_properties[] = { 1778 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1779 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1780 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1781 VIRTIO_CCW_MAX_REV), 1782 DEFINE_PROP_END_OF_LIST(), 1783 }; 1784 1785 static void virtio_ccw_9p_realize(VirtioCcwDevice *ccw_dev, Error **errp) 1786 { 1787 V9fsCCWState *dev = VIRTIO_9P_CCW(ccw_dev); 1788 DeviceState *vdev = DEVICE(&dev->vdev); 1789 1790 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 1791 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 1792 } 1793 1794 static void virtio_ccw_9p_class_init(ObjectClass *klass, void *data) 1795 { 1796 DeviceClass *dc = DEVICE_CLASS(klass); 1797 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1798 1799 k->unrealize = virtio_ccw_unrealize; 1800 k->realize = virtio_ccw_9p_realize; 1801 dc->props = virtio_ccw_9p_properties; 1802 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 1803 } 1804 1805 static void virtio_ccw_9p_instance_init(Object *obj) 1806 { 1807 V9fsCCWState *dev = VIRTIO_9P_CCW(obj); 1808 1809 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1810 TYPE_VIRTIO_9P); 1811 } 1812 1813 static const TypeInfo virtio_ccw_9p_info = { 1814 .name = TYPE_VIRTIO_9P_CCW, 1815 .parent = TYPE_VIRTIO_CCW_DEVICE, 1816 .instance_size = sizeof(V9fsCCWState), 1817 .instance_init = virtio_ccw_9p_instance_init, 1818 .class_init = virtio_ccw_9p_class_init, 1819 }; 1820 #endif 1821 1822 #ifdef CONFIG_VHOST_VSOCK 1823 1824 static Property vhost_vsock_ccw_properties[] = { 1825 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1826 VIRTIO_CCW_MAX_REV), 1827 DEFINE_PROP_END_OF_LIST(), 1828 }; 1829 1830 static void vhost_vsock_ccw_realize(VirtioCcwDevice *ccw_dev, Error **errp) 1831 { 1832 VHostVSockCCWState *dev = VHOST_VSOCK_CCW(ccw_dev); 1833 DeviceState *vdev = DEVICE(&dev->vdev); 1834 Error *err = NULL; 1835 1836 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 1837 object_property_set_bool(OBJECT(vdev), true, "realized", &err); 1838 error_propagate(errp, err); 1839 } 1840 1841 static void vhost_vsock_ccw_class_init(ObjectClass *klass, void *data) 1842 { 1843 DeviceClass *dc = DEVICE_CLASS(klass); 1844 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1845 1846 k->realize = vhost_vsock_ccw_realize; 1847 k->unrealize = virtio_ccw_unrealize; 1848 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 1849 dc->props = vhost_vsock_ccw_properties; 1850 } 1851 1852 static void vhost_vsock_ccw_instance_init(Object *obj) 1853 { 1854 VHostVSockCCWState *dev = VHOST_VSOCK_CCW(obj); 1855 1856 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1857 TYPE_VHOST_VSOCK); 1858 } 1859 1860 static const TypeInfo vhost_vsock_ccw_info = { 1861 .name = TYPE_VHOST_VSOCK_CCW, 1862 .parent = TYPE_VIRTIO_CCW_DEVICE, 1863 .instance_size = sizeof(VHostVSockCCWState), 1864 .instance_init = vhost_vsock_ccw_instance_init, 1865 .class_init = vhost_vsock_ccw_class_init, 1866 }; 1867 #endif 1868 1869 static void virtio_ccw_register(void) 1870 { 1871 type_register_static(&virtio_ccw_bus_info); 1872 type_register_static(&virtio_ccw_device_info); 1873 type_register_static(&virtio_ccw_serial); 1874 type_register_static(&virtio_ccw_blk); 1875 type_register_static(&virtio_ccw_net); 1876 type_register_static(&virtio_ccw_balloon); 1877 type_register_static(&virtio_ccw_scsi); 1878 #ifdef CONFIG_VHOST_SCSI 1879 type_register_static(&vhost_ccw_scsi); 1880 #endif 1881 type_register_static(&virtio_ccw_rng); 1882 #ifdef CONFIG_VIRTFS 1883 type_register_static(&virtio_ccw_9p_info); 1884 #endif 1885 #ifdef CONFIG_VHOST_VSOCK 1886 type_register_static(&vhost_vsock_ccw_info); 1887 #endif 1888 type_register_static(&virtio_ccw_crypto); 1889 type_register_static(&virtio_ccw_gpu); 1890 type_register_static(&virtio_ccw_input); 1891 type_register_static(&virtio_ccw_input_hid); 1892 type_register_static(&virtio_ccw_keyboard); 1893 type_register_static(&virtio_ccw_mouse); 1894 type_register_static(&virtio_ccw_tablet); 1895 } 1896 1897 type_init(virtio_ccw_register) 1898