1 /* 2 * virtio ccw target implementation 3 * 4 * Copyright 2012,2015 IBM Corp. 5 * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com> 6 * Pierre Morel <pmorel@linux.vnet.ibm.com> 7 * 8 * This work is licensed under the terms of the GNU GPL, version 2 or (at 9 * your option) any later version. See the COPYING file in the top-level 10 * directory. 11 */ 12 13 #include "qemu/osdep.h" 14 #include "qapi/error.h" 15 #include "hw/hw.h" 16 #include "sysemu/block-backend.h" 17 #include "sysemu/blockdev.h" 18 #include "sysemu/sysemu.h" 19 #include "sysemu/kvm.h" 20 #include "net/net.h" 21 #include "hw/virtio/virtio.h" 22 #include "hw/virtio/virtio-serial.h" 23 #include "hw/virtio/virtio-net.h" 24 #include "hw/sysbus.h" 25 #include "qemu/bitops.h" 26 #include "qemu/error-report.h" 27 #include "hw/virtio/virtio-access.h" 28 #include "hw/virtio/virtio-bus.h" 29 #include "hw/s390x/adapter.h" 30 #include "hw/s390x/s390_flic.h" 31 32 #include "hw/s390x/ioinst.h" 33 #include "hw/s390x/css.h" 34 #include "virtio-ccw.h" 35 #include "trace.h" 36 #include "hw/s390x/css-bridge.h" 37 #include "hw/s390x/s390-virtio-ccw.h" 38 39 #define NR_CLASSIC_INDICATOR_BITS 64 40 41 static int virtio_ccw_dev_post_load(void *opaque, int version_id) 42 { 43 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(opaque); 44 CcwDevice *ccw_dev = CCW_DEVICE(dev); 45 CCWDeviceClass *ck = CCW_DEVICE_GET_CLASS(ccw_dev); 46 47 ccw_dev->sch->driver_data = dev; 48 if (ccw_dev->sch->thinint_active) { 49 dev->routes.adapter.adapter_id = css_get_adapter_id( 50 CSS_IO_ADAPTER_VIRTIO, 51 dev->thinint_isc); 52 } 53 /* Re-fill subch_id after loading the subchannel states.*/ 54 if (ck->refill_ids) { 55 ck->refill_ids(ccw_dev); 56 } 57 return 0; 58 } 59 60 typedef struct VirtioCcwDeviceTmp { 61 VirtioCcwDevice *parent; 62 uint16_t config_vector; 63 } VirtioCcwDeviceTmp; 64 65 static int virtio_ccw_dev_tmp_pre_save(void *opaque) 66 { 67 VirtioCcwDeviceTmp *tmp = opaque; 68 VirtioCcwDevice *dev = tmp->parent; 69 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 70 71 tmp->config_vector = vdev->config_vector; 72 73 return 0; 74 } 75 76 static int virtio_ccw_dev_tmp_post_load(void *opaque, int version_id) 77 { 78 VirtioCcwDeviceTmp *tmp = opaque; 79 VirtioCcwDevice *dev = tmp->parent; 80 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 81 82 vdev->config_vector = tmp->config_vector; 83 return 0; 84 } 85 86 const VMStateDescription vmstate_virtio_ccw_dev_tmp = { 87 .name = "s390_virtio_ccw_dev_tmp", 88 .pre_save = virtio_ccw_dev_tmp_pre_save, 89 .post_load = virtio_ccw_dev_tmp_post_load, 90 .fields = (VMStateField[]) { 91 VMSTATE_UINT16(config_vector, VirtioCcwDeviceTmp), 92 VMSTATE_END_OF_LIST() 93 } 94 }; 95 96 const VMStateDescription vmstate_virtio_ccw_dev = { 97 .name = "s390_virtio_ccw_dev", 98 .version_id = 1, 99 .minimum_version_id = 1, 100 .post_load = virtio_ccw_dev_post_load, 101 .fields = (VMStateField[]) { 102 VMSTATE_CCW_DEVICE(parent_obj, VirtioCcwDevice), 103 VMSTATE_PTR_TO_IND_ADDR(indicators, VirtioCcwDevice), 104 VMSTATE_PTR_TO_IND_ADDR(indicators2, VirtioCcwDevice), 105 VMSTATE_PTR_TO_IND_ADDR(summary_indicator, VirtioCcwDevice), 106 /* 107 * Ugly hack because VirtIODevice does not migrate itself. 108 * This also makes legacy via vmstate_save_state possible. 109 */ 110 VMSTATE_WITH_TMP(VirtioCcwDevice, VirtioCcwDeviceTmp, 111 vmstate_virtio_ccw_dev_tmp), 112 VMSTATE_STRUCT(routes, VirtioCcwDevice, 1, vmstate_adapter_routes, 113 AdapterRoutes), 114 VMSTATE_UINT8(thinint_isc, VirtioCcwDevice), 115 VMSTATE_INT32(revision, VirtioCcwDevice), 116 VMSTATE_END_OF_LIST() 117 } 118 }; 119 120 static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size, 121 VirtioCcwDevice *dev); 122 123 VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch) 124 { 125 VirtIODevice *vdev = NULL; 126 VirtioCcwDevice *dev = sch->driver_data; 127 128 if (dev) { 129 vdev = virtio_bus_get_device(&dev->bus); 130 } 131 return vdev; 132 } 133 134 static void virtio_ccw_start_ioeventfd(VirtioCcwDevice *dev) 135 { 136 virtio_bus_start_ioeventfd(&dev->bus); 137 } 138 139 static void virtio_ccw_stop_ioeventfd(VirtioCcwDevice *dev) 140 { 141 virtio_bus_stop_ioeventfd(&dev->bus); 142 } 143 144 static bool virtio_ccw_ioeventfd_enabled(DeviceState *d) 145 { 146 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 147 148 return (dev->flags & VIRTIO_CCW_FLAG_USE_IOEVENTFD) != 0; 149 } 150 151 static int virtio_ccw_ioeventfd_assign(DeviceState *d, EventNotifier *notifier, 152 int n, bool assign) 153 { 154 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 155 CcwDevice *ccw_dev = CCW_DEVICE(dev); 156 SubchDev *sch = ccw_dev->sch; 157 uint32_t sch_id = (css_build_subchannel_id(sch) << 16) | sch->schid; 158 159 return s390_assign_subch_ioeventfd(notifier, sch_id, n, assign); 160 } 161 162 /* Communication blocks used by several channel commands. */ 163 typedef struct VqInfoBlockLegacy { 164 uint64_t queue; 165 uint32_t align; 166 uint16_t index; 167 uint16_t num; 168 } QEMU_PACKED VqInfoBlockLegacy; 169 170 typedef struct VqInfoBlock { 171 uint64_t desc; 172 uint32_t res0; 173 uint16_t index; 174 uint16_t num; 175 uint64_t avail; 176 uint64_t used; 177 } QEMU_PACKED VqInfoBlock; 178 179 typedef struct VqConfigBlock { 180 uint16_t index; 181 uint16_t num_max; 182 } QEMU_PACKED VqConfigBlock; 183 184 typedef struct VirtioFeatDesc { 185 uint32_t features; 186 uint8_t index; 187 } QEMU_PACKED VirtioFeatDesc; 188 189 typedef struct VirtioThinintInfo { 190 hwaddr summary_indicator; 191 hwaddr device_indicator; 192 uint64_t ind_bit; 193 uint8_t isc; 194 } QEMU_PACKED VirtioThinintInfo; 195 196 typedef struct VirtioRevInfo { 197 uint16_t revision; 198 uint16_t length; 199 uint8_t data[0]; 200 } QEMU_PACKED VirtioRevInfo; 201 202 /* Specify where the virtqueues for the subchannel are in guest memory. */ 203 static int virtio_ccw_set_vqs(SubchDev *sch, VqInfoBlock *info, 204 VqInfoBlockLegacy *linfo) 205 { 206 VirtIODevice *vdev = virtio_ccw_get_vdev(sch); 207 uint16_t index = info ? info->index : linfo->index; 208 uint16_t num = info ? info->num : linfo->num; 209 uint64_t desc = info ? info->desc : linfo->queue; 210 211 if (index >= VIRTIO_QUEUE_MAX) { 212 return -EINVAL; 213 } 214 215 /* Current code in virtio.c relies on 4K alignment. */ 216 if (linfo && desc && (linfo->align != 4096)) { 217 return -EINVAL; 218 } 219 220 if (!vdev) { 221 return -EINVAL; 222 } 223 224 if (info) { 225 virtio_queue_set_rings(vdev, index, desc, info->avail, info->used); 226 } else { 227 virtio_queue_set_addr(vdev, index, desc); 228 } 229 if (!desc) { 230 virtio_queue_set_vector(vdev, index, VIRTIO_NO_VECTOR); 231 } else { 232 if (info) { 233 /* virtio-1 allows changing the ring size. */ 234 if (virtio_queue_get_max_num(vdev, index) < num) { 235 /* Fail if we exceed the maximum number. */ 236 return -EINVAL; 237 } 238 virtio_queue_set_num(vdev, index, num); 239 } else if (virtio_queue_get_num(vdev, index) > num) { 240 /* Fail if we don't have a big enough queue. */ 241 return -EINVAL; 242 } 243 /* We ignore possible increased num for legacy for compatibility. */ 244 virtio_queue_set_vector(vdev, index, index); 245 } 246 /* tell notify handler in case of config change */ 247 vdev->config_vector = VIRTIO_QUEUE_MAX; 248 return 0; 249 } 250 251 static void virtio_ccw_reset_virtio(VirtioCcwDevice *dev, VirtIODevice *vdev) 252 { 253 CcwDevice *ccw_dev = CCW_DEVICE(dev); 254 255 virtio_ccw_stop_ioeventfd(dev); 256 virtio_reset(vdev); 257 if (dev->indicators) { 258 release_indicator(&dev->routes.adapter, dev->indicators); 259 dev->indicators = NULL; 260 } 261 if (dev->indicators2) { 262 release_indicator(&dev->routes.adapter, dev->indicators2); 263 dev->indicators2 = NULL; 264 } 265 if (dev->summary_indicator) { 266 release_indicator(&dev->routes.adapter, dev->summary_indicator); 267 dev->summary_indicator = NULL; 268 } 269 ccw_dev->sch->thinint_active = false; 270 } 271 272 static int virtio_ccw_handle_set_vq(SubchDev *sch, CCW1 ccw, bool check_len, 273 bool is_legacy) 274 { 275 int ret; 276 VqInfoBlock info; 277 VqInfoBlockLegacy linfo; 278 size_t info_len = is_legacy ? sizeof(linfo) : sizeof(info); 279 280 if (check_len) { 281 if (ccw.count != info_len) { 282 return -EINVAL; 283 } 284 } else if (ccw.count < info_len) { 285 /* Can't execute command. */ 286 return -EINVAL; 287 } 288 if (!ccw.cda) { 289 return -EFAULT; 290 } 291 if (is_legacy) { 292 ccw_dstream_read(&sch->cds, linfo); 293 be64_to_cpus(&linfo.queue); 294 be32_to_cpus(&linfo.align); 295 be16_to_cpus(&linfo.index); 296 be16_to_cpus(&linfo.num); 297 ret = virtio_ccw_set_vqs(sch, NULL, &linfo); 298 } else { 299 ccw_dstream_read(&sch->cds, info); 300 be64_to_cpus(&info.desc); 301 be16_to_cpus(&info.index); 302 be16_to_cpus(&info.num); 303 be64_to_cpus(&info.avail); 304 be64_to_cpus(&info.used); 305 ret = virtio_ccw_set_vqs(sch, &info, NULL); 306 } 307 sch->curr_status.scsw.count = 0; 308 return ret; 309 } 310 311 static int virtio_ccw_cb(SubchDev *sch, CCW1 ccw) 312 { 313 int ret; 314 VirtioRevInfo revinfo; 315 uint8_t status; 316 VirtioFeatDesc features; 317 hwaddr indicators; 318 VqConfigBlock vq_config; 319 VirtioCcwDevice *dev = sch->driver_data; 320 VirtIODevice *vdev = virtio_ccw_get_vdev(sch); 321 bool check_len; 322 int len; 323 VirtioThinintInfo thinint; 324 325 if (!dev) { 326 return -EINVAL; 327 } 328 329 trace_virtio_ccw_interpret_ccw(sch->cssid, sch->ssid, sch->schid, 330 ccw.cmd_code); 331 check_len = !((ccw.flags & CCW_FLAG_SLI) && !(ccw.flags & CCW_FLAG_DC)); 332 333 if (dev->force_revision_1 && dev->revision < 0 && 334 ccw.cmd_code != CCW_CMD_SET_VIRTIO_REV) { 335 /* 336 * virtio-1 drivers must start with negotiating to a revision >= 1, 337 * so post a command reject for all other commands 338 */ 339 return -ENOSYS; 340 } 341 342 /* Look at the command. */ 343 switch (ccw.cmd_code) { 344 case CCW_CMD_SET_VQ: 345 ret = virtio_ccw_handle_set_vq(sch, ccw, check_len, dev->revision < 1); 346 break; 347 case CCW_CMD_VDEV_RESET: 348 virtio_ccw_reset_virtio(dev, vdev); 349 ret = 0; 350 break; 351 case CCW_CMD_READ_FEAT: 352 if (check_len) { 353 if (ccw.count != sizeof(features)) { 354 ret = -EINVAL; 355 break; 356 } 357 } else if (ccw.count < sizeof(features)) { 358 /* Can't execute command. */ 359 ret = -EINVAL; 360 break; 361 } 362 if (!ccw.cda) { 363 ret = -EFAULT; 364 } else { 365 VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev); 366 367 ccw_dstream_advance(&sch->cds, sizeof(features.features)); 368 ccw_dstream_read(&sch->cds, features.index); 369 if (features.index == 0) { 370 if (dev->revision >= 1) { 371 /* Don't offer legacy features for modern devices. */ 372 features.features = (uint32_t) 373 (vdev->host_features & ~vdc->legacy_features); 374 } else { 375 features.features = (uint32_t)vdev->host_features; 376 } 377 } else if ((features.index == 1) && (dev->revision >= 1)) { 378 /* 379 * Only offer feature bits beyond 31 if the guest has 380 * negotiated at least revision 1. 381 */ 382 features.features = (uint32_t)(vdev->host_features >> 32); 383 } else { 384 /* Return zeroes if the guest supports more feature bits. */ 385 features.features = 0; 386 } 387 ccw_dstream_rewind(&sch->cds); 388 cpu_to_le32s(&features.features); 389 ccw_dstream_write(&sch->cds, features.features); 390 sch->curr_status.scsw.count = ccw.count - sizeof(features); 391 ret = 0; 392 } 393 break; 394 case CCW_CMD_WRITE_FEAT: 395 if (check_len) { 396 if (ccw.count != sizeof(features)) { 397 ret = -EINVAL; 398 break; 399 } 400 } else if (ccw.count < sizeof(features)) { 401 /* Can't execute command. */ 402 ret = -EINVAL; 403 break; 404 } 405 if (!ccw.cda) { 406 ret = -EFAULT; 407 } else { 408 ccw_dstream_read(&sch->cds, features); 409 le32_to_cpus(&features.features); 410 if (features.index == 0) { 411 virtio_set_features(vdev, 412 (vdev->guest_features & 0xffffffff00000000ULL) | 413 features.features); 414 } else if ((features.index == 1) && (dev->revision >= 1)) { 415 /* 416 * If the guest did not negotiate at least revision 1, 417 * we did not offer it any feature bits beyond 31. Such a 418 * guest passing us any bit here is therefore buggy. 419 */ 420 virtio_set_features(vdev, 421 (vdev->guest_features & 0x00000000ffffffffULL) | 422 ((uint64_t)features.features << 32)); 423 } else { 424 /* 425 * If the guest supports more feature bits, assert that it 426 * passes us zeroes for those we don't support. 427 */ 428 if (features.features) { 429 fprintf(stderr, "Guest bug: features[%i]=%x (expected 0)\n", 430 features.index, features.features); 431 /* XXX: do a unit check here? */ 432 } 433 } 434 sch->curr_status.scsw.count = ccw.count - sizeof(features); 435 ret = 0; 436 } 437 break; 438 case CCW_CMD_READ_CONF: 439 if (check_len) { 440 if (ccw.count > vdev->config_len) { 441 ret = -EINVAL; 442 break; 443 } 444 } 445 len = MIN(ccw.count, vdev->config_len); 446 if (!ccw.cda) { 447 ret = -EFAULT; 448 } else { 449 virtio_bus_get_vdev_config(&dev->bus, vdev->config); 450 ccw_dstream_write_buf(&sch->cds, vdev->config, len); 451 sch->curr_status.scsw.count = ccw.count - len; 452 ret = 0; 453 } 454 break; 455 case CCW_CMD_WRITE_CONF: 456 if (check_len) { 457 if (ccw.count > vdev->config_len) { 458 ret = -EINVAL; 459 break; 460 } 461 } 462 len = MIN(ccw.count, vdev->config_len); 463 if (!ccw.cda) { 464 ret = -EFAULT; 465 } else { 466 ret = ccw_dstream_read_buf(&sch->cds, vdev->config, len); 467 if (!ret) { 468 virtio_bus_set_vdev_config(&dev->bus, vdev->config); 469 sch->curr_status.scsw.count = ccw.count - len; 470 } 471 } 472 break; 473 case CCW_CMD_READ_STATUS: 474 if (check_len) { 475 if (ccw.count != sizeof(status)) { 476 ret = -EINVAL; 477 break; 478 } 479 } else if (ccw.count < sizeof(status)) { 480 /* Can't execute command. */ 481 ret = -EINVAL; 482 break; 483 } 484 if (!ccw.cda) { 485 ret = -EFAULT; 486 } else { 487 address_space_stb(&address_space_memory, ccw.cda, vdev->status, 488 MEMTXATTRS_UNSPECIFIED, NULL); 489 sch->curr_status.scsw.count = ccw.count - sizeof(vdev->status);; 490 ret = 0; 491 } 492 break; 493 case CCW_CMD_WRITE_STATUS: 494 if (check_len) { 495 if (ccw.count != sizeof(status)) { 496 ret = -EINVAL; 497 break; 498 } 499 } else if (ccw.count < sizeof(status)) { 500 /* Can't execute command. */ 501 ret = -EINVAL; 502 break; 503 } 504 if (!ccw.cda) { 505 ret = -EFAULT; 506 } else { 507 ccw_dstream_read(&sch->cds, status); 508 if (!(status & VIRTIO_CONFIG_S_DRIVER_OK)) { 509 virtio_ccw_stop_ioeventfd(dev); 510 } 511 if (virtio_set_status(vdev, status) == 0) { 512 if (vdev->status == 0) { 513 virtio_ccw_reset_virtio(dev, vdev); 514 } 515 if (status & VIRTIO_CONFIG_S_DRIVER_OK) { 516 virtio_ccw_start_ioeventfd(dev); 517 } 518 sch->curr_status.scsw.count = ccw.count - sizeof(status); 519 ret = 0; 520 } else { 521 /* Trigger a command reject. */ 522 ret = -ENOSYS; 523 } 524 } 525 break; 526 case CCW_CMD_SET_IND: 527 if (check_len) { 528 if (ccw.count != sizeof(indicators)) { 529 ret = -EINVAL; 530 break; 531 } 532 } else if (ccw.count < sizeof(indicators)) { 533 /* Can't execute command. */ 534 ret = -EINVAL; 535 break; 536 } 537 if (sch->thinint_active) { 538 /* Trigger a command reject. */ 539 ret = -ENOSYS; 540 break; 541 } 542 if (virtio_get_num_queues(vdev) > NR_CLASSIC_INDICATOR_BITS) { 543 /* More queues than indicator bits --> trigger a reject */ 544 ret = -ENOSYS; 545 break; 546 } 547 if (!ccw.cda) { 548 ret = -EFAULT; 549 } else { 550 ccw_dstream_read(&sch->cds, indicators); 551 be64_to_cpus(&indicators); 552 dev->indicators = get_indicator(indicators, sizeof(uint64_t)); 553 sch->curr_status.scsw.count = ccw.count - sizeof(indicators); 554 ret = 0; 555 } 556 break; 557 case CCW_CMD_SET_CONF_IND: 558 if (check_len) { 559 if (ccw.count != sizeof(indicators)) { 560 ret = -EINVAL; 561 break; 562 } 563 } else if (ccw.count < sizeof(indicators)) { 564 /* Can't execute command. */ 565 ret = -EINVAL; 566 break; 567 } 568 if (!ccw.cda) { 569 ret = -EFAULT; 570 } else { 571 ccw_dstream_read(&sch->cds, indicators); 572 be64_to_cpus(&indicators); 573 dev->indicators2 = get_indicator(indicators, sizeof(uint64_t)); 574 sch->curr_status.scsw.count = ccw.count - sizeof(indicators); 575 ret = 0; 576 } 577 break; 578 case CCW_CMD_READ_VQ_CONF: 579 if (check_len) { 580 if (ccw.count != sizeof(vq_config)) { 581 ret = -EINVAL; 582 break; 583 } 584 } else if (ccw.count < sizeof(vq_config)) { 585 /* Can't execute command. */ 586 ret = -EINVAL; 587 break; 588 } 589 if (!ccw.cda) { 590 ret = -EFAULT; 591 } else { 592 ccw_dstream_read(&sch->cds, vq_config.index); 593 be16_to_cpus(&vq_config.index); 594 if (vq_config.index >= VIRTIO_QUEUE_MAX) { 595 ret = -EINVAL; 596 break; 597 } 598 vq_config.num_max = virtio_queue_get_num(vdev, 599 vq_config.index); 600 cpu_to_be16s(&vq_config.num_max); 601 ccw_dstream_write(&sch->cds, vq_config.num_max); 602 sch->curr_status.scsw.count = ccw.count - sizeof(vq_config); 603 ret = 0; 604 } 605 break; 606 case CCW_CMD_SET_IND_ADAPTER: 607 if (check_len) { 608 if (ccw.count != sizeof(thinint)) { 609 ret = -EINVAL; 610 break; 611 } 612 } else if (ccw.count < sizeof(thinint)) { 613 /* Can't execute command. */ 614 ret = -EINVAL; 615 break; 616 } 617 if (!ccw.cda) { 618 ret = -EFAULT; 619 } else if (dev->indicators && !sch->thinint_active) { 620 /* Trigger a command reject. */ 621 ret = -ENOSYS; 622 } else { 623 if (ccw_dstream_read(&sch->cds, thinint)) { 624 ret = -EFAULT; 625 } else { 626 be64_to_cpus(&thinint.ind_bit); 627 be64_to_cpus(&thinint.summary_indicator); 628 be64_to_cpus(&thinint.device_indicator); 629 630 dev->summary_indicator = 631 get_indicator(thinint.summary_indicator, sizeof(uint8_t)); 632 dev->indicators = 633 get_indicator(thinint.device_indicator, 634 thinint.ind_bit / 8 + 1); 635 dev->thinint_isc = thinint.isc; 636 dev->routes.adapter.ind_offset = thinint.ind_bit; 637 dev->routes.adapter.summary_offset = 7; 638 dev->routes.adapter.adapter_id = css_get_adapter_id( 639 CSS_IO_ADAPTER_VIRTIO, 640 dev->thinint_isc); 641 sch->thinint_active = ((dev->indicators != NULL) && 642 (dev->summary_indicator != NULL)); 643 sch->curr_status.scsw.count = ccw.count - sizeof(thinint); 644 ret = 0; 645 } 646 } 647 break; 648 case CCW_CMD_SET_VIRTIO_REV: 649 len = sizeof(revinfo); 650 if (ccw.count < len) { 651 ret = -EINVAL; 652 break; 653 } 654 if (!ccw.cda) { 655 ret = -EFAULT; 656 break; 657 } 658 ccw_dstream_read_buf(&sch->cds, &revinfo, 4); 659 be16_to_cpus(&revinfo.revision); 660 be16_to_cpus(&revinfo.length); 661 if (ccw.count < len + revinfo.length || 662 (check_len && ccw.count > len + revinfo.length)) { 663 ret = -EINVAL; 664 break; 665 } 666 /* 667 * Once we start to support revisions with additional data, we'll 668 * need to fetch it here. Nothing to do for now, though. 669 */ 670 if (dev->revision >= 0 || 671 revinfo.revision > virtio_ccw_rev_max(dev) || 672 (dev->force_revision_1 && !revinfo.revision)) { 673 ret = -ENOSYS; 674 break; 675 } 676 ret = 0; 677 dev->revision = revinfo.revision; 678 break; 679 default: 680 ret = -ENOSYS; 681 break; 682 } 683 return ret; 684 } 685 686 static void virtio_sch_disable_cb(SubchDev *sch) 687 { 688 VirtioCcwDevice *dev = sch->driver_data; 689 690 dev->revision = -1; 691 } 692 693 static void virtio_ccw_device_realize(VirtioCcwDevice *dev, Error **errp) 694 { 695 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_GET_CLASS(dev); 696 CcwDevice *ccw_dev = CCW_DEVICE(dev); 697 CCWDeviceClass *ck = CCW_DEVICE_GET_CLASS(ccw_dev); 698 DeviceState *parent = DEVICE(ccw_dev); 699 BusState *qbus = qdev_get_parent_bus(parent); 700 VirtualCssBus *cbus = VIRTUAL_CSS_BUS(qbus); 701 SubchDev *sch; 702 Error *err = NULL; 703 704 sch = css_create_sch(ccw_dev->devno, true, cbus->squash_mcss, errp); 705 if (!sch) { 706 return; 707 } 708 if (!virtio_ccw_rev_max(dev) && dev->force_revision_1) { 709 error_setg(&err, "Invalid value of property max_rev " 710 "(is %d expected >= 1)", virtio_ccw_rev_max(dev)); 711 goto out_err; 712 } 713 714 sch->driver_data = dev; 715 sch->ccw_cb = virtio_ccw_cb; 716 sch->disable_cb = virtio_sch_disable_cb; 717 sch->id.reserved = 0xff; 718 sch->id.cu_type = VIRTIO_CCW_CU_TYPE; 719 sch->do_subchannel_work = do_subchannel_work_virtual; 720 ccw_dev->sch = sch; 721 dev->indicators = NULL; 722 dev->revision = -1; 723 css_sch_build_virtual_schib(sch, 0, VIRTIO_CCW_CHPID_TYPE); 724 725 trace_virtio_ccw_new_device( 726 sch->cssid, sch->ssid, sch->schid, sch->devno, 727 ccw_dev->devno.valid ? "user-configured" : "auto-configured"); 728 729 if (kvm_enabled() && !kvm_eventfds_enabled()) { 730 dev->flags &= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD; 731 } 732 733 if (k->realize) { 734 k->realize(dev, &err); 735 if (err) { 736 goto out_err; 737 } 738 } 739 740 ck->realize(ccw_dev, &err); 741 if (err) { 742 goto out_err; 743 } 744 745 return; 746 747 out_err: 748 error_propagate(errp, err); 749 css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL); 750 ccw_dev->sch = NULL; 751 g_free(sch); 752 } 753 754 static int virtio_ccw_exit(VirtioCcwDevice *dev) 755 { 756 CcwDevice *ccw_dev = CCW_DEVICE(dev); 757 SubchDev *sch = ccw_dev->sch; 758 759 if (sch) { 760 css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL); 761 g_free(sch); 762 } 763 if (dev->indicators) { 764 release_indicator(&dev->routes.adapter, dev->indicators); 765 dev->indicators = NULL; 766 } 767 return 0; 768 } 769 770 static void virtio_ccw_net_realize(VirtioCcwDevice *ccw_dev, Error **errp) 771 { 772 DeviceState *qdev = DEVICE(ccw_dev); 773 VirtIONetCcw *dev = VIRTIO_NET_CCW(ccw_dev); 774 DeviceState *vdev = DEVICE(&dev->vdev); 775 776 virtio_net_set_netclient_name(&dev->vdev, qdev->id, 777 object_get_typename(OBJECT(qdev))); 778 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 779 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 780 } 781 782 static void virtio_ccw_net_instance_init(Object *obj) 783 { 784 VirtIONetCcw *dev = VIRTIO_NET_CCW(obj); 785 786 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 787 TYPE_VIRTIO_NET); 788 object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), 789 "bootindex", &error_abort); 790 } 791 792 static void virtio_ccw_blk_realize(VirtioCcwDevice *ccw_dev, Error **errp) 793 { 794 VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(ccw_dev); 795 DeviceState *vdev = DEVICE(&dev->vdev); 796 797 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 798 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 799 } 800 801 static void virtio_ccw_blk_instance_init(Object *obj) 802 { 803 VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(obj); 804 805 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 806 TYPE_VIRTIO_BLK); 807 object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), 808 "bootindex", &error_abort); 809 } 810 811 static void virtio_ccw_serial_realize(VirtioCcwDevice *ccw_dev, Error **errp) 812 { 813 VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(ccw_dev); 814 DeviceState *vdev = DEVICE(&dev->vdev); 815 DeviceState *proxy = DEVICE(ccw_dev); 816 char *bus_name; 817 818 /* 819 * For command line compatibility, this sets the virtio-serial-device bus 820 * name as before. 821 */ 822 if (proxy->id) { 823 bus_name = g_strdup_printf("%s.0", proxy->id); 824 virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); 825 g_free(bus_name); 826 } 827 828 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 829 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 830 } 831 832 833 static void virtio_ccw_serial_instance_init(Object *obj) 834 { 835 VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(obj); 836 837 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 838 TYPE_VIRTIO_SERIAL); 839 } 840 841 static void virtio_ccw_balloon_realize(VirtioCcwDevice *ccw_dev, Error **errp) 842 { 843 VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(ccw_dev); 844 DeviceState *vdev = DEVICE(&dev->vdev); 845 846 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 847 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 848 } 849 850 static void virtio_ccw_balloon_instance_init(Object *obj) 851 { 852 VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(obj); 853 854 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 855 TYPE_VIRTIO_BALLOON); 856 object_property_add_alias(obj, "guest-stats", OBJECT(&dev->vdev), 857 "guest-stats", &error_abort); 858 object_property_add_alias(obj, "guest-stats-polling-interval", 859 OBJECT(&dev->vdev), 860 "guest-stats-polling-interval", &error_abort); 861 } 862 863 static void virtio_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp) 864 { 865 VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(ccw_dev); 866 DeviceState *vdev = DEVICE(&dev->vdev); 867 DeviceState *qdev = DEVICE(ccw_dev); 868 char *bus_name; 869 870 /* 871 * For command line compatibility, this sets the virtio-scsi-device bus 872 * name as before. 873 */ 874 if (qdev->id) { 875 bus_name = g_strdup_printf("%s.0", qdev->id); 876 virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); 877 g_free(bus_name); 878 } 879 880 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 881 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 882 } 883 884 static void virtio_ccw_scsi_instance_init(Object *obj) 885 { 886 VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(obj); 887 888 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 889 TYPE_VIRTIO_SCSI); 890 } 891 892 #ifdef CONFIG_VHOST_SCSI 893 static void vhost_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp) 894 { 895 VHostSCSICcw *dev = VHOST_SCSI_CCW(ccw_dev); 896 DeviceState *vdev = DEVICE(&dev->vdev); 897 898 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 899 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 900 } 901 902 static void vhost_ccw_scsi_instance_init(Object *obj) 903 { 904 VHostSCSICcw *dev = VHOST_SCSI_CCW(obj); 905 906 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 907 TYPE_VHOST_SCSI); 908 } 909 #endif 910 911 static void virtio_ccw_rng_realize(VirtioCcwDevice *ccw_dev, Error **errp) 912 { 913 VirtIORNGCcw *dev = VIRTIO_RNG_CCW(ccw_dev); 914 DeviceState *vdev = DEVICE(&dev->vdev); 915 Error *err = NULL; 916 917 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 918 object_property_set_bool(OBJECT(vdev), true, "realized", &err); 919 if (err) { 920 error_propagate(errp, err); 921 return; 922 } 923 924 object_property_set_link(OBJECT(dev), 925 OBJECT(dev->vdev.conf.rng), "rng", 926 NULL); 927 } 928 929 static void virtio_ccw_crypto_realize(VirtioCcwDevice *ccw_dev, Error **errp) 930 { 931 VirtIOCryptoCcw *dev = VIRTIO_CRYPTO_CCW(ccw_dev); 932 DeviceState *vdev = DEVICE(&dev->vdev); 933 Error *err = NULL; 934 935 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 936 object_property_set_bool(OBJECT(vdev), true, "realized", &err); 937 if (err) { 938 error_propagate(errp, err); 939 return; 940 } 941 942 object_property_set_link(OBJECT(vdev), 943 OBJECT(dev->vdev.conf.cryptodev), "cryptodev", 944 NULL); 945 } 946 947 static void virtio_ccw_gpu_realize(VirtioCcwDevice *ccw_dev, Error **errp) 948 { 949 VirtIOGPUCcw *dev = VIRTIO_GPU_CCW(ccw_dev); 950 DeviceState *vdev = DEVICE(&dev->vdev); 951 952 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 953 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 954 } 955 956 /* DeviceState to VirtioCcwDevice. Note: used on datapath, 957 * be careful and test performance if you change this. 958 */ 959 static inline VirtioCcwDevice *to_virtio_ccw_dev_fast(DeviceState *d) 960 { 961 CcwDevice *ccw_dev = to_ccw_dev_fast(d); 962 963 return container_of(ccw_dev, VirtioCcwDevice, parent_obj); 964 } 965 966 static uint8_t virtio_set_ind_atomic(SubchDev *sch, uint64_t ind_loc, 967 uint8_t to_be_set) 968 { 969 uint8_t ind_old, ind_new; 970 hwaddr len = 1; 971 uint8_t *ind_addr; 972 973 ind_addr = cpu_physical_memory_map(ind_loc, &len, 1); 974 if (!ind_addr) { 975 error_report("%s(%x.%x.%04x): unable to access indicator", 976 __func__, sch->cssid, sch->ssid, sch->schid); 977 return -1; 978 } 979 do { 980 ind_old = *ind_addr; 981 ind_new = ind_old | to_be_set; 982 } while (atomic_cmpxchg(ind_addr, ind_old, ind_new) != ind_old); 983 trace_virtio_ccw_set_ind(ind_loc, ind_old, ind_new); 984 cpu_physical_memory_unmap(ind_addr, len, 1, len); 985 986 return ind_old; 987 } 988 989 static void virtio_ccw_notify(DeviceState *d, uint16_t vector) 990 { 991 VirtioCcwDevice *dev = to_virtio_ccw_dev_fast(d); 992 CcwDevice *ccw_dev = to_ccw_dev_fast(d); 993 SubchDev *sch = ccw_dev->sch; 994 uint64_t indicators; 995 996 /* queue indicators + secondary indicators */ 997 if (vector >= VIRTIO_QUEUE_MAX + 64) { 998 return; 999 } 1000 1001 if (vector < VIRTIO_QUEUE_MAX) { 1002 if (!dev->indicators) { 1003 return; 1004 } 1005 if (sch->thinint_active) { 1006 /* 1007 * In the adapter interrupt case, indicators points to a 1008 * memory area that may be (way) larger than 64 bit and 1009 * ind_bit indicates the start of the indicators in a big 1010 * endian notation. 1011 */ 1012 uint64_t ind_bit = dev->routes.adapter.ind_offset; 1013 1014 virtio_set_ind_atomic(sch, dev->indicators->addr + 1015 (ind_bit + vector) / 8, 1016 0x80 >> ((ind_bit + vector) % 8)); 1017 if (!virtio_set_ind_atomic(sch, dev->summary_indicator->addr, 1018 0x01)) { 1019 css_adapter_interrupt(CSS_IO_ADAPTER_VIRTIO, dev->thinint_isc); 1020 } 1021 } else { 1022 indicators = address_space_ldq(&address_space_memory, 1023 dev->indicators->addr, 1024 MEMTXATTRS_UNSPECIFIED, 1025 NULL); 1026 indicators |= 1ULL << vector; 1027 address_space_stq(&address_space_memory, dev->indicators->addr, 1028 indicators, MEMTXATTRS_UNSPECIFIED, NULL); 1029 css_conditional_io_interrupt(sch); 1030 } 1031 } else { 1032 if (!dev->indicators2) { 1033 return; 1034 } 1035 vector = 0; 1036 indicators = address_space_ldq(&address_space_memory, 1037 dev->indicators2->addr, 1038 MEMTXATTRS_UNSPECIFIED, 1039 NULL); 1040 indicators |= 1ULL << vector; 1041 address_space_stq(&address_space_memory, dev->indicators2->addr, 1042 indicators, MEMTXATTRS_UNSPECIFIED, NULL); 1043 css_conditional_io_interrupt(sch); 1044 } 1045 } 1046 1047 static void virtio_ccw_reset(DeviceState *d) 1048 { 1049 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1050 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1051 CcwDevice *ccw_dev = CCW_DEVICE(d); 1052 1053 virtio_ccw_reset_virtio(dev, vdev); 1054 css_reset_sch(ccw_dev->sch); 1055 } 1056 1057 static void virtio_ccw_vmstate_change(DeviceState *d, bool running) 1058 { 1059 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1060 1061 if (running) { 1062 virtio_ccw_start_ioeventfd(dev); 1063 } else { 1064 virtio_ccw_stop_ioeventfd(dev); 1065 } 1066 } 1067 1068 static bool virtio_ccw_query_guest_notifiers(DeviceState *d) 1069 { 1070 CcwDevice *dev = CCW_DEVICE(d); 1071 1072 return !!(dev->sch->curr_status.pmcw.flags & PMCW_FLAGS_MASK_ENA); 1073 } 1074 1075 static int virtio_ccw_get_mappings(VirtioCcwDevice *dev) 1076 { 1077 int r; 1078 CcwDevice *ccw_dev = CCW_DEVICE(dev); 1079 1080 if (!ccw_dev->sch->thinint_active) { 1081 return -EINVAL; 1082 } 1083 1084 r = map_indicator(&dev->routes.adapter, dev->summary_indicator); 1085 if (r) { 1086 return r; 1087 } 1088 r = map_indicator(&dev->routes.adapter, dev->indicators); 1089 if (r) { 1090 return r; 1091 } 1092 dev->routes.adapter.summary_addr = dev->summary_indicator->map; 1093 dev->routes.adapter.ind_addr = dev->indicators->map; 1094 1095 return 0; 1096 } 1097 1098 static int virtio_ccw_setup_irqroutes(VirtioCcwDevice *dev, int nvqs) 1099 { 1100 int i; 1101 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1102 int ret; 1103 S390FLICState *fs = s390_get_flic(); 1104 S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs); 1105 1106 ret = virtio_ccw_get_mappings(dev); 1107 if (ret) { 1108 return ret; 1109 } 1110 for (i = 0; i < nvqs; i++) { 1111 if (!virtio_queue_get_num(vdev, i)) { 1112 break; 1113 } 1114 } 1115 dev->routes.num_routes = i; 1116 return fsc->add_adapter_routes(fs, &dev->routes); 1117 } 1118 1119 static void virtio_ccw_release_irqroutes(VirtioCcwDevice *dev, int nvqs) 1120 { 1121 S390FLICState *fs = s390_get_flic(); 1122 S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs); 1123 1124 fsc->release_adapter_routes(fs, &dev->routes); 1125 } 1126 1127 static int virtio_ccw_add_irqfd(VirtioCcwDevice *dev, int n) 1128 { 1129 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1130 VirtQueue *vq = virtio_get_queue(vdev, n); 1131 EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); 1132 1133 return kvm_irqchip_add_irqfd_notifier_gsi(kvm_state, notifier, NULL, 1134 dev->routes.gsi[n]); 1135 } 1136 1137 static void virtio_ccw_remove_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 int ret; 1143 1144 ret = kvm_irqchip_remove_irqfd_notifier_gsi(kvm_state, notifier, 1145 dev->routes.gsi[n]); 1146 assert(ret == 0); 1147 } 1148 1149 static int virtio_ccw_set_guest_notifier(VirtioCcwDevice *dev, int n, 1150 bool assign, bool with_irqfd) 1151 { 1152 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1153 VirtQueue *vq = virtio_get_queue(vdev, n); 1154 EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); 1155 VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); 1156 1157 if (assign) { 1158 int r = event_notifier_init(notifier, 0); 1159 1160 if (r < 0) { 1161 return r; 1162 } 1163 virtio_queue_set_guest_notifier_fd_handler(vq, true, with_irqfd); 1164 if (with_irqfd) { 1165 r = virtio_ccw_add_irqfd(dev, n); 1166 if (r) { 1167 virtio_queue_set_guest_notifier_fd_handler(vq, false, 1168 with_irqfd); 1169 return r; 1170 } 1171 } 1172 /* 1173 * We do not support individual masking for channel devices, so we 1174 * need to manually trigger any guest masking callbacks here. 1175 */ 1176 if (k->guest_notifier_mask && vdev->use_guest_notifier_mask) { 1177 k->guest_notifier_mask(vdev, n, false); 1178 } 1179 /* get lost events and re-inject */ 1180 if (k->guest_notifier_pending && 1181 k->guest_notifier_pending(vdev, n)) { 1182 event_notifier_set(notifier); 1183 } 1184 } else { 1185 if (k->guest_notifier_mask && vdev->use_guest_notifier_mask) { 1186 k->guest_notifier_mask(vdev, n, true); 1187 } 1188 if (with_irqfd) { 1189 virtio_ccw_remove_irqfd(dev, n); 1190 } 1191 virtio_queue_set_guest_notifier_fd_handler(vq, false, with_irqfd); 1192 event_notifier_cleanup(notifier); 1193 } 1194 return 0; 1195 } 1196 1197 static int virtio_ccw_set_guest_notifiers(DeviceState *d, int nvqs, 1198 bool assigned) 1199 { 1200 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1201 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1202 CcwDevice *ccw_dev = CCW_DEVICE(d); 1203 bool with_irqfd = ccw_dev->sch->thinint_active && kvm_irqfds_enabled(); 1204 int r, n; 1205 1206 if (with_irqfd && assigned) { 1207 /* irq routes need to be set up before assigning irqfds */ 1208 r = virtio_ccw_setup_irqroutes(dev, nvqs); 1209 if (r < 0) { 1210 goto irqroute_error; 1211 } 1212 } 1213 for (n = 0; n < nvqs; n++) { 1214 if (!virtio_queue_get_num(vdev, n)) { 1215 break; 1216 } 1217 r = virtio_ccw_set_guest_notifier(dev, n, assigned, with_irqfd); 1218 if (r < 0) { 1219 goto assign_error; 1220 } 1221 } 1222 if (with_irqfd && !assigned) { 1223 /* release irq routes after irqfds have been released */ 1224 virtio_ccw_release_irqroutes(dev, nvqs); 1225 } 1226 return 0; 1227 1228 assign_error: 1229 while (--n >= 0) { 1230 virtio_ccw_set_guest_notifier(dev, n, !assigned, false); 1231 } 1232 irqroute_error: 1233 if (with_irqfd && assigned) { 1234 virtio_ccw_release_irqroutes(dev, nvqs); 1235 } 1236 return r; 1237 } 1238 1239 static void virtio_ccw_save_queue(DeviceState *d, int n, QEMUFile *f) 1240 { 1241 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1242 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1243 1244 qemu_put_be16(f, virtio_queue_vector(vdev, n)); 1245 } 1246 1247 static int virtio_ccw_load_queue(DeviceState *d, int n, QEMUFile *f) 1248 { 1249 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1250 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1251 uint16_t vector; 1252 1253 qemu_get_be16s(f, &vector); 1254 virtio_queue_set_vector(vdev, n , vector); 1255 1256 return 0; 1257 } 1258 1259 static void virtio_ccw_save_config(DeviceState *d, QEMUFile *f) 1260 { 1261 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1262 vmstate_save_state(f, &vmstate_virtio_ccw_dev, dev, NULL); 1263 } 1264 1265 static int virtio_ccw_load_config(DeviceState *d, QEMUFile *f) 1266 { 1267 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1268 return vmstate_load_state(f, &vmstate_virtio_ccw_dev, dev, 1); 1269 } 1270 1271 static void virtio_ccw_pre_plugged(DeviceState *d, Error **errp) 1272 { 1273 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1274 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1275 1276 if (dev->max_rev >= 1) { 1277 virtio_add_feature(&vdev->host_features, VIRTIO_F_VERSION_1); 1278 } 1279 } 1280 1281 /* This is called by virtio-bus just after the device is plugged. */ 1282 static void virtio_ccw_device_plugged(DeviceState *d, Error **errp) 1283 { 1284 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1285 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1286 CcwDevice *ccw_dev = CCW_DEVICE(d); 1287 SubchDev *sch = ccw_dev->sch; 1288 int n = virtio_get_num_queues(vdev); 1289 S390FLICState *flic = s390_get_flic(); 1290 1291 if (!virtio_has_feature(vdev->host_features, VIRTIO_F_VERSION_1)) { 1292 dev->max_rev = 0; 1293 } 1294 1295 if (virtio_get_num_queues(vdev) > VIRTIO_QUEUE_MAX) { 1296 error_setg(errp, "The number of virtqueues %d " 1297 "exceeds virtio limit %d", n, 1298 VIRTIO_QUEUE_MAX); 1299 return; 1300 } 1301 if (virtio_get_num_queues(vdev) > flic->adapter_routes_max_batch) { 1302 error_setg(errp, "The number of virtqueues %d " 1303 "exceeds flic adapter route limit %d", n, 1304 flic->adapter_routes_max_batch); 1305 return; 1306 } 1307 1308 sch->id.cu_model = virtio_bus_get_vdev_id(&dev->bus); 1309 1310 1311 css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid, 1312 d->hotplugged, 1); 1313 } 1314 1315 static void virtio_ccw_device_unplugged(DeviceState *d) 1316 { 1317 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1318 1319 virtio_ccw_stop_ioeventfd(dev); 1320 } 1321 /**************** Virtio-ccw Bus Device Descriptions *******************/ 1322 1323 static Property virtio_ccw_net_properties[] = { 1324 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1325 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1326 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1327 VIRTIO_CCW_MAX_REV), 1328 DEFINE_PROP_END_OF_LIST(), 1329 }; 1330 1331 static void virtio_ccw_net_class_init(ObjectClass *klass, void *data) 1332 { 1333 DeviceClass *dc = DEVICE_CLASS(klass); 1334 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1335 1336 k->realize = virtio_ccw_net_realize; 1337 k->exit = virtio_ccw_exit; 1338 dc->reset = virtio_ccw_reset; 1339 dc->props = virtio_ccw_net_properties; 1340 set_bit(DEVICE_CATEGORY_NETWORK, dc->categories); 1341 } 1342 1343 static const TypeInfo virtio_ccw_net = { 1344 .name = TYPE_VIRTIO_NET_CCW, 1345 .parent = TYPE_VIRTIO_CCW_DEVICE, 1346 .instance_size = sizeof(VirtIONetCcw), 1347 .instance_init = virtio_ccw_net_instance_init, 1348 .class_init = virtio_ccw_net_class_init, 1349 }; 1350 1351 static Property virtio_ccw_blk_properties[] = { 1352 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1353 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1354 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1355 VIRTIO_CCW_MAX_REV), 1356 DEFINE_PROP_END_OF_LIST(), 1357 }; 1358 1359 static void virtio_ccw_blk_class_init(ObjectClass *klass, void *data) 1360 { 1361 DeviceClass *dc = DEVICE_CLASS(klass); 1362 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1363 1364 k->realize = virtio_ccw_blk_realize; 1365 k->exit = virtio_ccw_exit; 1366 dc->reset = virtio_ccw_reset; 1367 dc->props = virtio_ccw_blk_properties; 1368 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 1369 } 1370 1371 static const TypeInfo virtio_ccw_blk = { 1372 .name = TYPE_VIRTIO_BLK_CCW, 1373 .parent = TYPE_VIRTIO_CCW_DEVICE, 1374 .instance_size = sizeof(VirtIOBlkCcw), 1375 .instance_init = virtio_ccw_blk_instance_init, 1376 .class_init = virtio_ccw_blk_class_init, 1377 }; 1378 1379 static Property virtio_ccw_serial_properties[] = { 1380 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1381 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1382 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1383 VIRTIO_CCW_MAX_REV), 1384 DEFINE_PROP_END_OF_LIST(), 1385 }; 1386 1387 static void virtio_ccw_serial_class_init(ObjectClass *klass, void *data) 1388 { 1389 DeviceClass *dc = DEVICE_CLASS(klass); 1390 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1391 1392 k->realize = virtio_ccw_serial_realize; 1393 k->exit = virtio_ccw_exit; 1394 dc->reset = virtio_ccw_reset; 1395 dc->props = virtio_ccw_serial_properties; 1396 set_bit(DEVICE_CATEGORY_INPUT, dc->categories); 1397 } 1398 1399 static const TypeInfo virtio_ccw_serial = { 1400 .name = TYPE_VIRTIO_SERIAL_CCW, 1401 .parent = TYPE_VIRTIO_CCW_DEVICE, 1402 .instance_size = sizeof(VirtioSerialCcw), 1403 .instance_init = virtio_ccw_serial_instance_init, 1404 .class_init = virtio_ccw_serial_class_init, 1405 }; 1406 1407 static Property virtio_ccw_balloon_properties[] = { 1408 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1409 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1410 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1411 VIRTIO_CCW_MAX_REV), 1412 DEFINE_PROP_END_OF_LIST(), 1413 }; 1414 1415 static void virtio_ccw_balloon_class_init(ObjectClass *klass, void *data) 1416 { 1417 DeviceClass *dc = DEVICE_CLASS(klass); 1418 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1419 1420 k->realize = virtio_ccw_balloon_realize; 1421 k->exit = virtio_ccw_exit; 1422 dc->reset = virtio_ccw_reset; 1423 dc->props = virtio_ccw_balloon_properties; 1424 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 1425 } 1426 1427 static const TypeInfo virtio_ccw_balloon = { 1428 .name = TYPE_VIRTIO_BALLOON_CCW, 1429 .parent = TYPE_VIRTIO_CCW_DEVICE, 1430 .instance_size = sizeof(VirtIOBalloonCcw), 1431 .instance_init = virtio_ccw_balloon_instance_init, 1432 .class_init = virtio_ccw_balloon_class_init, 1433 }; 1434 1435 static Property virtio_ccw_scsi_properties[] = { 1436 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1437 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1438 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1439 VIRTIO_CCW_MAX_REV), 1440 DEFINE_PROP_END_OF_LIST(), 1441 }; 1442 1443 static void virtio_ccw_scsi_class_init(ObjectClass *klass, void *data) 1444 { 1445 DeviceClass *dc = DEVICE_CLASS(klass); 1446 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1447 1448 k->realize = virtio_ccw_scsi_realize; 1449 k->exit = virtio_ccw_exit; 1450 dc->reset = virtio_ccw_reset; 1451 dc->props = virtio_ccw_scsi_properties; 1452 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 1453 } 1454 1455 static const TypeInfo virtio_ccw_scsi = { 1456 .name = TYPE_VIRTIO_SCSI_CCW, 1457 .parent = TYPE_VIRTIO_CCW_DEVICE, 1458 .instance_size = sizeof(VirtIOSCSICcw), 1459 .instance_init = virtio_ccw_scsi_instance_init, 1460 .class_init = virtio_ccw_scsi_class_init, 1461 }; 1462 1463 #ifdef CONFIG_VHOST_SCSI 1464 static Property vhost_ccw_scsi_properties[] = { 1465 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1466 VIRTIO_CCW_MAX_REV), 1467 DEFINE_PROP_END_OF_LIST(), 1468 }; 1469 1470 static void vhost_ccw_scsi_class_init(ObjectClass *klass, void *data) 1471 { 1472 DeviceClass *dc = DEVICE_CLASS(klass); 1473 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1474 1475 k->realize = vhost_ccw_scsi_realize; 1476 k->exit = virtio_ccw_exit; 1477 dc->reset = virtio_ccw_reset; 1478 dc->props = vhost_ccw_scsi_properties; 1479 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 1480 } 1481 1482 static const TypeInfo vhost_ccw_scsi = { 1483 .name = TYPE_VHOST_SCSI_CCW, 1484 .parent = TYPE_VIRTIO_CCW_DEVICE, 1485 .instance_size = sizeof(VHostSCSICcw), 1486 .instance_init = vhost_ccw_scsi_instance_init, 1487 .class_init = vhost_ccw_scsi_class_init, 1488 }; 1489 #endif 1490 1491 static void virtio_ccw_rng_instance_init(Object *obj) 1492 { 1493 VirtIORNGCcw *dev = VIRTIO_RNG_CCW(obj); 1494 1495 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1496 TYPE_VIRTIO_RNG); 1497 } 1498 1499 static Property virtio_ccw_rng_properties[] = { 1500 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1501 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1502 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1503 VIRTIO_CCW_MAX_REV), 1504 DEFINE_PROP_END_OF_LIST(), 1505 }; 1506 1507 static void virtio_ccw_rng_class_init(ObjectClass *klass, void *data) 1508 { 1509 DeviceClass *dc = DEVICE_CLASS(klass); 1510 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1511 1512 k->realize = virtio_ccw_rng_realize; 1513 k->exit = virtio_ccw_exit; 1514 dc->reset = virtio_ccw_reset; 1515 dc->props = virtio_ccw_rng_properties; 1516 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 1517 } 1518 1519 static const TypeInfo virtio_ccw_rng = { 1520 .name = TYPE_VIRTIO_RNG_CCW, 1521 .parent = TYPE_VIRTIO_CCW_DEVICE, 1522 .instance_size = sizeof(VirtIORNGCcw), 1523 .instance_init = virtio_ccw_rng_instance_init, 1524 .class_init = virtio_ccw_rng_class_init, 1525 }; 1526 1527 static Property virtio_ccw_crypto_properties[] = { 1528 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1529 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1530 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1531 VIRTIO_CCW_MAX_REV), 1532 DEFINE_PROP_END_OF_LIST(), 1533 }; 1534 1535 static void virtio_ccw_crypto_instance_init(Object *obj) 1536 { 1537 VirtIOCryptoCcw *dev = VIRTIO_CRYPTO_CCW(obj); 1538 VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj); 1539 1540 ccw_dev->force_revision_1 = true; 1541 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1542 TYPE_VIRTIO_CRYPTO); 1543 } 1544 1545 static void virtio_ccw_crypto_class_init(ObjectClass *klass, void *data) 1546 { 1547 DeviceClass *dc = DEVICE_CLASS(klass); 1548 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1549 1550 k->realize = virtio_ccw_crypto_realize; 1551 k->exit = virtio_ccw_exit; 1552 dc->reset = virtio_ccw_reset; 1553 dc->props = virtio_ccw_crypto_properties; 1554 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 1555 } 1556 1557 static const TypeInfo virtio_ccw_crypto = { 1558 .name = TYPE_VIRTIO_CRYPTO_CCW, 1559 .parent = TYPE_VIRTIO_CCW_DEVICE, 1560 .instance_size = sizeof(VirtIOCryptoCcw), 1561 .instance_init = virtio_ccw_crypto_instance_init, 1562 .class_init = virtio_ccw_crypto_class_init, 1563 }; 1564 1565 static Property virtio_ccw_gpu_properties[] = { 1566 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1567 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1568 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1569 VIRTIO_CCW_MAX_REV), 1570 DEFINE_PROP_END_OF_LIST(), 1571 }; 1572 1573 static void virtio_ccw_gpu_instance_init(Object *obj) 1574 { 1575 VirtIOGPUCcw *dev = VIRTIO_GPU_CCW(obj); 1576 VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj); 1577 1578 ccw_dev->force_revision_1 = true; 1579 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1580 TYPE_VIRTIO_GPU); 1581 } 1582 1583 static void virtio_ccw_gpu_class_init(ObjectClass *klass, void *data) 1584 { 1585 DeviceClass *dc = DEVICE_CLASS(klass); 1586 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1587 1588 k->realize = virtio_ccw_gpu_realize; 1589 k->exit = virtio_ccw_exit; 1590 dc->reset = virtio_ccw_reset; 1591 dc->props = virtio_ccw_gpu_properties; 1592 dc->hotpluggable = false; 1593 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories); 1594 } 1595 1596 static const TypeInfo virtio_ccw_gpu = { 1597 .name = TYPE_VIRTIO_GPU_CCW, 1598 .parent = TYPE_VIRTIO_CCW_DEVICE, 1599 .instance_size = sizeof(VirtIOGPUCcw), 1600 .instance_init = virtio_ccw_gpu_instance_init, 1601 .class_init = virtio_ccw_gpu_class_init, 1602 }; 1603 1604 static void virtio_ccw_busdev_realize(DeviceState *dev, Error **errp) 1605 { 1606 VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev; 1607 1608 virtio_ccw_bus_new(&_dev->bus, sizeof(_dev->bus), _dev); 1609 virtio_ccw_device_realize(_dev, errp); 1610 } 1611 1612 static int virtio_ccw_busdev_exit(DeviceState *dev) 1613 { 1614 VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev; 1615 VirtIOCCWDeviceClass *_info = VIRTIO_CCW_DEVICE_GET_CLASS(dev); 1616 1617 return _info->exit(_dev); 1618 } 1619 1620 static void virtio_ccw_busdev_unplug(HotplugHandler *hotplug_dev, 1621 DeviceState *dev, Error **errp) 1622 { 1623 VirtioCcwDevice *_dev = to_virtio_ccw_dev_fast(dev); 1624 1625 virtio_ccw_stop_ioeventfd(_dev); 1626 } 1627 1628 static void virtio_ccw_device_class_init(ObjectClass *klass, void *data) 1629 { 1630 DeviceClass *dc = DEVICE_CLASS(klass); 1631 CCWDeviceClass *k = CCW_DEVICE_CLASS(dc); 1632 1633 k->unplug = virtio_ccw_busdev_unplug; 1634 dc->realize = virtio_ccw_busdev_realize; 1635 dc->exit = virtio_ccw_busdev_exit; 1636 dc->bus_type = TYPE_VIRTUAL_CSS_BUS; 1637 } 1638 1639 static const TypeInfo virtio_ccw_device_info = { 1640 .name = TYPE_VIRTIO_CCW_DEVICE, 1641 .parent = TYPE_CCW_DEVICE, 1642 .instance_size = sizeof(VirtioCcwDevice), 1643 .class_init = virtio_ccw_device_class_init, 1644 .class_size = sizeof(VirtIOCCWDeviceClass), 1645 .abstract = true, 1646 }; 1647 1648 /* virtio-ccw-bus */ 1649 1650 static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size, 1651 VirtioCcwDevice *dev) 1652 { 1653 DeviceState *qdev = DEVICE(dev); 1654 char virtio_bus_name[] = "virtio-bus"; 1655 1656 qbus_create_inplace(bus, bus_size, TYPE_VIRTIO_CCW_BUS, 1657 qdev, virtio_bus_name); 1658 } 1659 1660 static void virtio_ccw_bus_class_init(ObjectClass *klass, void *data) 1661 { 1662 VirtioBusClass *k = VIRTIO_BUS_CLASS(klass); 1663 BusClass *bus_class = BUS_CLASS(klass); 1664 1665 bus_class->max_dev = 1; 1666 k->notify = virtio_ccw_notify; 1667 k->vmstate_change = virtio_ccw_vmstate_change; 1668 k->query_guest_notifiers = virtio_ccw_query_guest_notifiers; 1669 k->set_guest_notifiers = virtio_ccw_set_guest_notifiers; 1670 k->save_queue = virtio_ccw_save_queue; 1671 k->load_queue = virtio_ccw_load_queue; 1672 k->save_config = virtio_ccw_save_config; 1673 k->load_config = virtio_ccw_load_config; 1674 k->pre_plugged = virtio_ccw_pre_plugged; 1675 k->device_plugged = virtio_ccw_device_plugged; 1676 k->device_unplugged = virtio_ccw_device_unplugged; 1677 k->ioeventfd_enabled = virtio_ccw_ioeventfd_enabled; 1678 k->ioeventfd_assign = virtio_ccw_ioeventfd_assign; 1679 } 1680 1681 static const TypeInfo virtio_ccw_bus_info = { 1682 .name = TYPE_VIRTIO_CCW_BUS, 1683 .parent = TYPE_VIRTIO_BUS, 1684 .instance_size = sizeof(VirtioCcwBusState), 1685 .class_init = virtio_ccw_bus_class_init, 1686 }; 1687 1688 #ifdef CONFIG_VIRTFS 1689 static Property virtio_ccw_9p_properties[] = { 1690 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1691 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1692 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1693 VIRTIO_CCW_MAX_REV), 1694 DEFINE_PROP_END_OF_LIST(), 1695 }; 1696 1697 static void virtio_ccw_9p_realize(VirtioCcwDevice *ccw_dev, Error **errp) 1698 { 1699 V9fsCCWState *dev = VIRTIO_9P_CCW(ccw_dev); 1700 DeviceState *vdev = DEVICE(&dev->vdev); 1701 1702 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 1703 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 1704 } 1705 1706 static void virtio_ccw_9p_class_init(ObjectClass *klass, void *data) 1707 { 1708 DeviceClass *dc = DEVICE_CLASS(klass); 1709 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1710 1711 k->exit = virtio_ccw_exit; 1712 k->realize = virtio_ccw_9p_realize; 1713 dc->reset = virtio_ccw_reset; 1714 dc->props = virtio_ccw_9p_properties; 1715 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 1716 } 1717 1718 static void virtio_ccw_9p_instance_init(Object *obj) 1719 { 1720 V9fsCCWState *dev = VIRTIO_9P_CCW(obj); 1721 1722 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1723 TYPE_VIRTIO_9P); 1724 } 1725 1726 static const TypeInfo virtio_ccw_9p_info = { 1727 .name = TYPE_VIRTIO_9P_CCW, 1728 .parent = TYPE_VIRTIO_CCW_DEVICE, 1729 .instance_size = sizeof(V9fsCCWState), 1730 .instance_init = virtio_ccw_9p_instance_init, 1731 .class_init = virtio_ccw_9p_class_init, 1732 }; 1733 #endif 1734 1735 #ifdef CONFIG_VHOST_VSOCK 1736 1737 static Property vhost_vsock_ccw_properties[] = { 1738 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1739 VIRTIO_CCW_MAX_REV), 1740 DEFINE_PROP_END_OF_LIST(), 1741 }; 1742 1743 static void vhost_vsock_ccw_realize(VirtioCcwDevice *ccw_dev, Error **errp) 1744 { 1745 VHostVSockCCWState *dev = VHOST_VSOCK_CCW(ccw_dev); 1746 DeviceState *vdev = DEVICE(&dev->vdev); 1747 Error *err = NULL; 1748 1749 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 1750 object_property_set_bool(OBJECT(vdev), true, "realized", &err); 1751 error_propagate(errp, err); 1752 } 1753 1754 static void vhost_vsock_ccw_class_init(ObjectClass *klass, void *data) 1755 { 1756 DeviceClass *dc = DEVICE_CLASS(klass); 1757 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1758 1759 k->realize = vhost_vsock_ccw_realize; 1760 k->exit = virtio_ccw_exit; 1761 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 1762 dc->props = vhost_vsock_ccw_properties; 1763 dc->reset = virtio_ccw_reset; 1764 } 1765 1766 static void vhost_vsock_ccw_instance_init(Object *obj) 1767 { 1768 VHostVSockCCWState *dev = VHOST_VSOCK_CCW(obj); 1769 1770 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1771 TYPE_VHOST_VSOCK); 1772 } 1773 1774 static const TypeInfo vhost_vsock_ccw_info = { 1775 .name = TYPE_VHOST_VSOCK_CCW, 1776 .parent = TYPE_VIRTIO_CCW_DEVICE, 1777 .instance_size = sizeof(VHostVSockCCWState), 1778 .instance_init = vhost_vsock_ccw_instance_init, 1779 .class_init = vhost_vsock_ccw_class_init, 1780 }; 1781 #endif 1782 1783 static void virtio_ccw_register(void) 1784 { 1785 type_register_static(&virtio_ccw_bus_info); 1786 type_register_static(&virtio_ccw_device_info); 1787 type_register_static(&virtio_ccw_serial); 1788 type_register_static(&virtio_ccw_blk); 1789 type_register_static(&virtio_ccw_net); 1790 type_register_static(&virtio_ccw_balloon); 1791 type_register_static(&virtio_ccw_scsi); 1792 #ifdef CONFIG_VHOST_SCSI 1793 type_register_static(&vhost_ccw_scsi); 1794 #endif 1795 type_register_static(&virtio_ccw_rng); 1796 #ifdef CONFIG_VIRTFS 1797 type_register_static(&virtio_ccw_9p_info); 1798 #endif 1799 #ifdef CONFIG_VHOST_VSOCK 1800 type_register_static(&vhost_vsock_ccw_info); 1801 #endif 1802 type_register_static(&virtio_ccw_crypto); 1803 type_register_static(&virtio_ccw_gpu); 1804 } 1805 1806 type_init(virtio_ccw_register) 1807