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 qemu_log_mask(LOG_GUEST_ERROR, 430 "Guest bug: features[%i]=%x (expected 0)", 431 features.index, features.features); 432 /* XXX: do a unit check here? */ 433 } 434 } 435 sch->curr_status.scsw.count = ccw.count - sizeof(features); 436 ret = 0; 437 } 438 break; 439 case CCW_CMD_READ_CONF: 440 if (check_len) { 441 if (ccw.count > vdev->config_len) { 442 ret = -EINVAL; 443 break; 444 } 445 } 446 len = MIN(ccw.count, vdev->config_len); 447 if (!ccw.cda) { 448 ret = -EFAULT; 449 } else { 450 virtio_bus_get_vdev_config(&dev->bus, vdev->config); 451 ccw_dstream_write_buf(&sch->cds, vdev->config, len); 452 sch->curr_status.scsw.count = ccw.count - len; 453 ret = 0; 454 } 455 break; 456 case CCW_CMD_WRITE_CONF: 457 if (check_len) { 458 if (ccw.count > vdev->config_len) { 459 ret = -EINVAL; 460 break; 461 } 462 } 463 len = MIN(ccw.count, vdev->config_len); 464 if (!ccw.cda) { 465 ret = -EFAULT; 466 } else { 467 ret = ccw_dstream_read_buf(&sch->cds, vdev->config, len); 468 if (!ret) { 469 virtio_bus_set_vdev_config(&dev->bus, vdev->config); 470 sch->curr_status.scsw.count = ccw.count - len; 471 } 472 } 473 break; 474 case CCW_CMD_READ_STATUS: 475 if (check_len) { 476 if (ccw.count != sizeof(status)) { 477 ret = -EINVAL; 478 break; 479 } 480 } else if (ccw.count < sizeof(status)) { 481 /* Can't execute command. */ 482 ret = -EINVAL; 483 break; 484 } 485 if (!ccw.cda) { 486 ret = -EFAULT; 487 } else { 488 address_space_stb(&address_space_memory, ccw.cda, vdev->status, 489 MEMTXATTRS_UNSPECIFIED, NULL); 490 sch->curr_status.scsw.count = ccw.count - sizeof(vdev->status); 491 ret = 0; 492 } 493 break; 494 case CCW_CMD_WRITE_STATUS: 495 if (check_len) { 496 if (ccw.count != sizeof(status)) { 497 ret = -EINVAL; 498 break; 499 } 500 } else if (ccw.count < sizeof(status)) { 501 /* Can't execute command. */ 502 ret = -EINVAL; 503 break; 504 } 505 if (!ccw.cda) { 506 ret = -EFAULT; 507 } else { 508 ccw_dstream_read(&sch->cds, status); 509 if (!(status & VIRTIO_CONFIG_S_DRIVER_OK)) { 510 virtio_ccw_stop_ioeventfd(dev); 511 } 512 if (virtio_set_status(vdev, status) == 0) { 513 if (vdev->status == 0) { 514 virtio_ccw_reset_virtio(dev, vdev); 515 } 516 if (status & VIRTIO_CONFIG_S_DRIVER_OK) { 517 virtio_ccw_start_ioeventfd(dev); 518 } 519 sch->curr_status.scsw.count = ccw.count - sizeof(status); 520 ret = 0; 521 } else { 522 /* Trigger a command reject. */ 523 ret = -ENOSYS; 524 } 525 } 526 break; 527 case CCW_CMD_SET_IND: 528 if (check_len) { 529 if (ccw.count != sizeof(indicators)) { 530 ret = -EINVAL; 531 break; 532 } 533 } else if (ccw.count < sizeof(indicators)) { 534 /* Can't execute command. */ 535 ret = -EINVAL; 536 break; 537 } 538 if (sch->thinint_active) { 539 /* Trigger a command reject. */ 540 ret = -ENOSYS; 541 break; 542 } 543 if (virtio_get_num_queues(vdev) > NR_CLASSIC_INDICATOR_BITS) { 544 /* More queues than indicator bits --> trigger a reject */ 545 ret = -ENOSYS; 546 break; 547 } 548 if (!ccw.cda) { 549 ret = -EFAULT; 550 } else { 551 ccw_dstream_read(&sch->cds, indicators); 552 be64_to_cpus(&indicators); 553 dev->indicators = get_indicator(indicators, sizeof(uint64_t)); 554 sch->curr_status.scsw.count = ccw.count - sizeof(indicators); 555 ret = 0; 556 } 557 break; 558 case CCW_CMD_SET_CONF_IND: 559 if (check_len) { 560 if (ccw.count != sizeof(indicators)) { 561 ret = -EINVAL; 562 break; 563 } 564 } else if (ccw.count < sizeof(indicators)) { 565 /* Can't execute command. */ 566 ret = -EINVAL; 567 break; 568 } 569 if (!ccw.cda) { 570 ret = -EFAULT; 571 } else { 572 ccw_dstream_read(&sch->cds, indicators); 573 be64_to_cpus(&indicators); 574 dev->indicators2 = get_indicator(indicators, sizeof(uint64_t)); 575 sch->curr_status.scsw.count = ccw.count - sizeof(indicators); 576 ret = 0; 577 } 578 break; 579 case CCW_CMD_READ_VQ_CONF: 580 if (check_len) { 581 if (ccw.count != sizeof(vq_config)) { 582 ret = -EINVAL; 583 break; 584 } 585 } else if (ccw.count < sizeof(vq_config)) { 586 /* Can't execute command. */ 587 ret = -EINVAL; 588 break; 589 } 590 if (!ccw.cda) { 591 ret = -EFAULT; 592 } else { 593 ccw_dstream_read(&sch->cds, vq_config.index); 594 be16_to_cpus(&vq_config.index); 595 if (vq_config.index >= VIRTIO_QUEUE_MAX) { 596 ret = -EINVAL; 597 break; 598 } 599 vq_config.num_max = virtio_queue_get_num(vdev, 600 vq_config.index); 601 cpu_to_be16s(&vq_config.num_max); 602 ccw_dstream_write(&sch->cds, vq_config.num_max); 603 sch->curr_status.scsw.count = ccw.count - sizeof(vq_config); 604 ret = 0; 605 } 606 break; 607 case CCW_CMD_SET_IND_ADAPTER: 608 if (check_len) { 609 if (ccw.count != sizeof(thinint)) { 610 ret = -EINVAL; 611 break; 612 } 613 } else if (ccw.count < sizeof(thinint)) { 614 /* Can't execute command. */ 615 ret = -EINVAL; 616 break; 617 } 618 if (!ccw.cda) { 619 ret = -EFAULT; 620 } else if (dev->indicators && !sch->thinint_active) { 621 /* Trigger a command reject. */ 622 ret = -ENOSYS; 623 } else { 624 if (ccw_dstream_read(&sch->cds, thinint)) { 625 ret = -EFAULT; 626 } else { 627 be64_to_cpus(&thinint.ind_bit); 628 be64_to_cpus(&thinint.summary_indicator); 629 be64_to_cpus(&thinint.device_indicator); 630 631 dev->summary_indicator = 632 get_indicator(thinint.summary_indicator, sizeof(uint8_t)); 633 dev->indicators = 634 get_indicator(thinint.device_indicator, 635 thinint.ind_bit / 8 + 1); 636 dev->thinint_isc = thinint.isc; 637 dev->routes.adapter.ind_offset = thinint.ind_bit; 638 dev->routes.adapter.summary_offset = 7; 639 dev->routes.adapter.adapter_id = css_get_adapter_id( 640 CSS_IO_ADAPTER_VIRTIO, 641 dev->thinint_isc); 642 sch->thinint_active = ((dev->indicators != NULL) && 643 (dev->summary_indicator != NULL)); 644 sch->curr_status.scsw.count = ccw.count - sizeof(thinint); 645 ret = 0; 646 } 647 } 648 break; 649 case CCW_CMD_SET_VIRTIO_REV: 650 len = sizeof(revinfo); 651 if (ccw.count < len) { 652 ret = -EINVAL; 653 break; 654 } 655 if (!ccw.cda) { 656 ret = -EFAULT; 657 break; 658 } 659 ccw_dstream_read_buf(&sch->cds, &revinfo, 4); 660 be16_to_cpus(&revinfo.revision); 661 be16_to_cpus(&revinfo.length); 662 if (ccw.count < len + revinfo.length || 663 (check_len && ccw.count > len + revinfo.length)) { 664 ret = -EINVAL; 665 break; 666 } 667 /* 668 * Once we start to support revisions with additional data, we'll 669 * need to fetch it here. Nothing to do for now, though. 670 */ 671 if (dev->revision >= 0 || 672 revinfo.revision > virtio_ccw_rev_max(dev) || 673 (dev->force_revision_1 && !revinfo.revision)) { 674 ret = -ENOSYS; 675 break; 676 } 677 ret = 0; 678 dev->revision = revinfo.revision; 679 break; 680 default: 681 ret = -ENOSYS; 682 break; 683 } 684 return ret; 685 } 686 687 static void virtio_sch_disable_cb(SubchDev *sch) 688 { 689 VirtioCcwDevice *dev = sch->driver_data; 690 691 dev->revision = -1; 692 } 693 694 static void virtio_ccw_device_realize(VirtioCcwDevice *dev, Error **errp) 695 { 696 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_GET_CLASS(dev); 697 CcwDevice *ccw_dev = CCW_DEVICE(dev); 698 CCWDeviceClass *ck = CCW_DEVICE_GET_CLASS(ccw_dev); 699 DeviceState *parent = DEVICE(ccw_dev); 700 BusState *qbus = qdev_get_parent_bus(parent); 701 VirtualCssBus *cbus = VIRTUAL_CSS_BUS(qbus); 702 SubchDev *sch; 703 Error *err = NULL; 704 705 sch = css_create_sch(ccw_dev->devno, cbus->squash_mcss, errp); 706 if (!sch) { 707 return; 708 } 709 if (!virtio_ccw_rev_max(dev) && dev->force_revision_1) { 710 error_setg(&err, "Invalid value of property max_rev " 711 "(is %d expected >= 1)", virtio_ccw_rev_max(dev)); 712 goto out_err; 713 } 714 715 sch->driver_data = dev; 716 sch->ccw_cb = virtio_ccw_cb; 717 sch->disable_cb = virtio_sch_disable_cb; 718 sch->id.reserved = 0xff; 719 sch->id.cu_type = VIRTIO_CCW_CU_TYPE; 720 sch->do_subchannel_work = do_subchannel_work_virtual; 721 ccw_dev->sch = sch; 722 dev->indicators = NULL; 723 dev->revision = -1; 724 css_sch_build_virtual_schib(sch, 0, VIRTIO_CCW_CHPID_TYPE); 725 726 trace_virtio_ccw_new_device( 727 sch->cssid, sch->ssid, sch->schid, sch->devno, 728 ccw_dev->devno.valid ? "user-configured" : "auto-configured"); 729 730 if (kvm_enabled() && !kvm_eventfds_enabled()) { 731 dev->flags &= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD; 732 } 733 734 if (k->realize) { 735 k->realize(dev, &err); 736 if (err) { 737 goto out_err; 738 } 739 } 740 741 ck->realize(ccw_dev, &err); 742 if (err) { 743 goto out_err; 744 } 745 746 return; 747 748 out_err: 749 error_propagate(errp, err); 750 css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL); 751 ccw_dev->sch = NULL; 752 g_free(sch); 753 } 754 755 static void virtio_ccw_unrealize(VirtioCcwDevice *dev, Error **errp) 756 { 757 CcwDevice *ccw_dev = CCW_DEVICE(dev); 758 SubchDev *sch = ccw_dev->sch; 759 760 if (sch) { 761 css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL); 762 g_free(sch); 763 ccw_dev->sch = NULL; 764 } 765 if (dev->indicators) { 766 release_indicator(&dev->routes.adapter, dev->indicators); 767 dev->indicators = NULL; 768 } 769 } 770 771 static void virtio_ccw_net_realize(VirtioCcwDevice *ccw_dev, Error **errp) 772 { 773 DeviceState *qdev = DEVICE(ccw_dev); 774 VirtIONetCcw *dev = VIRTIO_NET_CCW(ccw_dev); 775 DeviceState *vdev = DEVICE(&dev->vdev); 776 777 virtio_net_set_netclient_name(&dev->vdev, qdev->id, 778 object_get_typename(OBJECT(qdev))); 779 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 780 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 781 } 782 783 static void virtio_ccw_net_instance_init(Object *obj) 784 { 785 VirtIONetCcw *dev = VIRTIO_NET_CCW(obj); 786 787 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 788 TYPE_VIRTIO_NET); 789 object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), 790 "bootindex", &error_abort); 791 } 792 793 static void virtio_ccw_blk_realize(VirtioCcwDevice *ccw_dev, Error **errp) 794 { 795 VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(ccw_dev); 796 DeviceState *vdev = DEVICE(&dev->vdev); 797 798 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 799 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 800 } 801 802 static void virtio_ccw_blk_instance_init(Object *obj) 803 { 804 VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(obj); 805 806 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 807 TYPE_VIRTIO_BLK); 808 object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), 809 "bootindex", &error_abort); 810 } 811 812 static void virtio_ccw_serial_realize(VirtioCcwDevice *ccw_dev, Error **errp) 813 { 814 VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(ccw_dev); 815 DeviceState *vdev = DEVICE(&dev->vdev); 816 DeviceState *proxy = DEVICE(ccw_dev); 817 char *bus_name; 818 819 /* 820 * For command line compatibility, this sets the virtio-serial-device bus 821 * name as before. 822 */ 823 if (proxy->id) { 824 bus_name = g_strdup_printf("%s.0", proxy->id); 825 virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); 826 g_free(bus_name); 827 } 828 829 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 830 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 831 } 832 833 834 static void virtio_ccw_serial_instance_init(Object *obj) 835 { 836 VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(obj); 837 838 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 839 TYPE_VIRTIO_SERIAL); 840 } 841 842 static void virtio_ccw_balloon_realize(VirtioCcwDevice *ccw_dev, Error **errp) 843 { 844 VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(ccw_dev); 845 DeviceState *vdev = DEVICE(&dev->vdev); 846 847 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 848 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 849 } 850 851 static void virtio_ccw_balloon_instance_init(Object *obj) 852 { 853 VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(obj); 854 855 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 856 TYPE_VIRTIO_BALLOON); 857 object_property_add_alias(obj, "guest-stats", OBJECT(&dev->vdev), 858 "guest-stats", &error_abort); 859 object_property_add_alias(obj, "guest-stats-polling-interval", 860 OBJECT(&dev->vdev), 861 "guest-stats-polling-interval", &error_abort); 862 } 863 864 static void virtio_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp) 865 { 866 VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(ccw_dev); 867 DeviceState *vdev = DEVICE(&dev->vdev); 868 DeviceState *qdev = DEVICE(ccw_dev); 869 char *bus_name; 870 871 /* 872 * For command line compatibility, this sets the virtio-scsi-device bus 873 * name as before. 874 */ 875 if (qdev->id) { 876 bus_name = g_strdup_printf("%s.0", qdev->id); 877 virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); 878 g_free(bus_name); 879 } 880 881 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 882 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 883 } 884 885 static void virtio_ccw_scsi_instance_init(Object *obj) 886 { 887 VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(obj); 888 889 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 890 TYPE_VIRTIO_SCSI); 891 } 892 893 #ifdef CONFIG_VHOST_SCSI 894 static void vhost_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp) 895 { 896 VHostSCSICcw *dev = VHOST_SCSI_CCW(ccw_dev); 897 DeviceState *vdev = DEVICE(&dev->vdev); 898 899 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 900 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 901 } 902 903 static void vhost_ccw_scsi_instance_init(Object *obj) 904 { 905 VHostSCSICcw *dev = VHOST_SCSI_CCW(obj); 906 907 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 908 TYPE_VHOST_SCSI); 909 } 910 #endif 911 912 static void virtio_ccw_rng_realize(VirtioCcwDevice *ccw_dev, Error **errp) 913 { 914 VirtIORNGCcw *dev = VIRTIO_RNG_CCW(ccw_dev); 915 DeviceState *vdev = DEVICE(&dev->vdev); 916 Error *err = NULL; 917 918 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 919 object_property_set_bool(OBJECT(vdev), true, "realized", &err); 920 if (err) { 921 error_propagate(errp, err); 922 return; 923 } 924 925 object_property_set_link(OBJECT(dev), 926 OBJECT(dev->vdev.conf.rng), "rng", 927 NULL); 928 } 929 930 static void virtio_ccw_crypto_realize(VirtioCcwDevice *ccw_dev, Error **errp) 931 { 932 VirtIOCryptoCcw *dev = VIRTIO_CRYPTO_CCW(ccw_dev); 933 DeviceState *vdev = DEVICE(&dev->vdev); 934 Error *err = NULL; 935 936 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 937 object_property_set_bool(OBJECT(vdev), true, "realized", &err); 938 if (err) { 939 error_propagate(errp, err); 940 return; 941 } 942 943 object_property_set_link(OBJECT(vdev), 944 OBJECT(dev->vdev.conf.cryptodev), "cryptodev", 945 NULL); 946 } 947 948 static void virtio_ccw_gpu_realize(VirtioCcwDevice *ccw_dev, Error **errp) 949 { 950 VirtIOGPUCcw *dev = VIRTIO_GPU_CCW(ccw_dev); 951 DeviceState *vdev = DEVICE(&dev->vdev); 952 953 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 954 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 955 } 956 957 static void virtio_ccw_input_realize(VirtioCcwDevice *ccw_dev, Error **errp) 958 { 959 VirtIOInputCcw *dev = VIRTIO_INPUT_CCW(ccw_dev); 960 DeviceState *vdev = DEVICE(&dev->vdev); 961 962 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 963 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 964 } 965 966 /* DeviceState to VirtioCcwDevice. Note: used on datapath, 967 * be careful and test performance if you change this. 968 */ 969 static inline VirtioCcwDevice *to_virtio_ccw_dev_fast(DeviceState *d) 970 { 971 CcwDevice *ccw_dev = to_ccw_dev_fast(d); 972 973 return container_of(ccw_dev, VirtioCcwDevice, parent_obj); 974 } 975 976 static uint8_t virtio_set_ind_atomic(SubchDev *sch, uint64_t ind_loc, 977 uint8_t to_be_set) 978 { 979 uint8_t ind_old, ind_new; 980 hwaddr len = 1; 981 uint8_t *ind_addr; 982 983 ind_addr = cpu_physical_memory_map(ind_loc, &len, 1); 984 if (!ind_addr) { 985 error_report("%s(%x.%x.%04x): unable to access indicator", 986 __func__, sch->cssid, sch->ssid, sch->schid); 987 return -1; 988 } 989 do { 990 ind_old = *ind_addr; 991 ind_new = ind_old | to_be_set; 992 } while (atomic_cmpxchg(ind_addr, ind_old, ind_new) != ind_old); 993 trace_virtio_ccw_set_ind(ind_loc, ind_old, ind_new); 994 cpu_physical_memory_unmap(ind_addr, len, 1, len); 995 996 return ind_old; 997 } 998 999 static void virtio_ccw_notify(DeviceState *d, uint16_t vector) 1000 { 1001 VirtioCcwDevice *dev = to_virtio_ccw_dev_fast(d); 1002 CcwDevice *ccw_dev = to_ccw_dev_fast(d); 1003 SubchDev *sch = ccw_dev->sch; 1004 uint64_t indicators; 1005 1006 /* queue indicators + secondary indicators */ 1007 if (vector >= VIRTIO_QUEUE_MAX + 64) { 1008 return; 1009 } 1010 1011 if (vector < VIRTIO_QUEUE_MAX) { 1012 if (!dev->indicators) { 1013 return; 1014 } 1015 if (sch->thinint_active) { 1016 /* 1017 * In the adapter interrupt case, indicators points to a 1018 * memory area that may be (way) larger than 64 bit and 1019 * ind_bit indicates the start of the indicators in a big 1020 * endian notation. 1021 */ 1022 uint64_t ind_bit = dev->routes.adapter.ind_offset; 1023 1024 virtio_set_ind_atomic(sch, dev->indicators->addr + 1025 (ind_bit + vector) / 8, 1026 0x80 >> ((ind_bit + vector) % 8)); 1027 if (!virtio_set_ind_atomic(sch, dev->summary_indicator->addr, 1028 0x01)) { 1029 css_adapter_interrupt(CSS_IO_ADAPTER_VIRTIO, dev->thinint_isc); 1030 } 1031 } else { 1032 indicators = address_space_ldq(&address_space_memory, 1033 dev->indicators->addr, 1034 MEMTXATTRS_UNSPECIFIED, 1035 NULL); 1036 indicators |= 1ULL << vector; 1037 address_space_stq(&address_space_memory, dev->indicators->addr, 1038 indicators, MEMTXATTRS_UNSPECIFIED, NULL); 1039 css_conditional_io_interrupt(sch); 1040 } 1041 } else { 1042 if (!dev->indicators2) { 1043 return; 1044 } 1045 vector = 0; 1046 indicators = address_space_ldq(&address_space_memory, 1047 dev->indicators2->addr, 1048 MEMTXATTRS_UNSPECIFIED, 1049 NULL); 1050 indicators |= 1ULL << vector; 1051 address_space_stq(&address_space_memory, dev->indicators2->addr, 1052 indicators, MEMTXATTRS_UNSPECIFIED, NULL); 1053 css_conditional_io_interrupt(sch); 1054 } 1055 } 1056 1057 static void virtio_ccw_reset(DeviceState *d) 1058 { 1059 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1060 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1061 VirtIOCCWDeviceClass *vdc = VIRTIO_CCW_DEVICE_GET_CLASS(dev); 1062 1063 virtio_ccw_reset_virtio(dev, vdev); 1064 if (vdc->parent_reset) { 1065 vdc->parent_reset(d); 1066 } 1067 } 1068 1069 static void virtio_ccw_vmstate_change(DeviceState *d, bool running) 1070 { 1071 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1072 1073 if (running) { 1074 virtio_ccw_start_ioeventfd(dev); 1075 } else { 1076 virtio_ccw_stop_ioeventfd(dev); 1077 } 1078 } 1079 1080 static bool virtio_ccw_query_guest_notifiers(DeviceState *d) 1081 { 1082 CcwDevice *dev = CCW_DEVICE(d); 1083 1084 return !!(dev->sch->curr_status.pmcw.flags & PMCW_FLAGS_MASK_ENA); 1085 } 1086 1087 static int virtio_ccw_get_mappings(VirtioCcwDevice *dev) 1088 { 1089 int r; 1090 CcwDevice *ccw_dev = CCW_DEVICE(dev); 1091 1092 if (!ccw_dev->sch->thinint_active) { 1093 return -EINVAL; 1094 } 1095 1096 r = map_indicator(&dev->routes.adapter, dev->summary_indicator); 1097 if (r) { 1098 return r; 1099 } 1100 r = map_indicator(&dev->routes.adapter, dev->indicators); 1101 if (r) { 1102 return r; 1103 } 1104 dev->routes.adapter.summary_addr = dev->summary_indicator->map; 1105 dev->routes.adapter.ind_addr = dev->indicators->map; 1106 1107 return 0; 1108 } 1109 1110 static int virtio_ccw_setup_irqroutes(VirtioCcwDevice *dev, int nvqs) 1111 { 1112 int i; 1113 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1114 int ret; 1115 S390FLICState *fs = s390_get_flic(); 1116 S390FLICStateClass *fsc = s390_get_flic_class(fs); 1117 1118 ret = virtio_ccw_get_mappings(dev); 1119 if (ret) { 1120 return ret; 1121 } 1122 for (i = 0; i < nvqs; i++) { 1123 if (!virtio_queue_get_num(vdev, i)) { 1124 break; 1125 } 1126 } 1127 dev->routes.num_routes = i; 1128 return fsc->add_adapter_routes(fs, &dev->routes); 1129 } 1130 1131 static void virtio_ccw_release_irqroutes(VirtioCcwDevice *dev, int nvqs) 1132 { 1133 S390FLICState *fs = s390_get_flic(); 1134 S390FLICStateClass *fsc = s390_get_flic_class(fs); 1135 1136 fsc->release_adapter_routes(fs, &dev->routes); 1137 } 1138 1139 static int virtio_ccw_add_irqfd(VirtioCcwDevice *dev, int n) 1140 { 1141 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1142 VirtQueue *vq = virtio_get_queue(vdev, n); 1143 EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); 1144 1145 return kvm_irqchip_add_irqfd_notifier_gsi(kvm_state, notifier, NULL, 1146 dev->routes.gsi[n]); 1147 } 1148 1149 static void virtio_ccw_remove_irqfd(VirtioCcwDevice *dev, int n) 1150 { 1151 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1152 VirtQueue *vq = virtio_get_queue(vdev, n); 1153 EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); 1154 int ret; 1155 1156 ret = kvm_irqchip_remove_irqfd_notifier_gsi(kvm_state, notifier, 1157 dev->routes.gsi[n]); 1158 assert(ret == 0); 1159 } 1160 1161 static int virtio_ccw_set_guest_notifier(VirtioCcwDevice *dev, int n, 1162 bool assign, bool with_irqfd) 1163 { 1164 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1165 VirtQueue *vq = virtio_get_queue(vdev, n); 1166 EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); 1167 VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); 1168 1169 if (assign) { 1170 int r = event_notifier_init(notifier, 0); 1171 1172 if (r < 0) { 1173 return r; 1174 } 1175 virtio_queue_set_guest_notifier_fd_handler(vq, true, with_irqfd); 1176 if (with_irqfd) { 1177 r = virtio_ccw_add_irqfd(dev, n); 1178 if (r) { 1179 virtio_queue_set_guest_notifier_fd_handler(vq, false, 1180 with_irqfd); 1181 return r; 1182 } 1183 } 1184 /* 1185 * We do not support individual masking for channel devices, so we 1186 * need to manually trigger any guest masking callbacks here. 1187 */ 1188 if (k->guest_notifier_mask && vdev->use_guest_notifier_mask) { 1189 k->guest_notifier_mask(vdev, n, false); 1190 } 1191 /* get lost events and re-inject */ 1192 if (k->guest_notifier_pending && 1193 k->guest_notifier_pending(vdev, n)) { 1194 event_notifier_set(notifier); 1195 } 1196 } else { 1197 if (k->guest_notifier_mask && vdev->use_guest_notifier_mask) { 1198 k->guest_notifier_mask(vdev, n, true); 1199 } 1200 if (with_irqfd) { 1201 virtio_ccw_remove_irqfd(dev, n); 1202 } 1203 virtio_queue_set_guest_notifier_fd_handler(vq, false, with_irqfd); 1204 event_notifier_cleanup(notifier); 1205 } 1206 return 0; 1207 } 1208 1209 static int virtio_ccw_set_guest_notifiers(DeviceState *d, int nvqs, 1210 bool assigned) 1211 { 1212 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1213 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1214 CcwDevice *ccw_dev = CCW_DEVICE(d); 1215 bool with_irqfd = ccw_dev->sch->thinint_active && kvm_irqfds_enabled(); 1216 int r, n; 1217 1218 if (with_irqfd && assigned) { 1219 /* irq routes need to be set up before assigning irqfds */ 1220 r = virtio_ccw_setup_irqroutes(dev, nvqs); 1221 if (r < 0) { 1222 goto irqroute_error; 1223 } 1224 } 1225 for (n = 0; n < nvqs; n++) { 1226 if (!virtio_queue_get_num(vdev, n)) { 1227 break; 1228 } 1229 r = virtio_ccw_set_guest_notifier(dev, n, assigned, with_irqfd); 1230 if (r < 0) { 1231 goto assign_error; 1232 } 1233 } 1234 if (with_irqfd && !assigned) { 1235 /* release irq routes after irqfds have been released */ 1236 virtio_ccw_release_irqroutes(dev, nvqs); 1237 } 1238 return 0; 1239 1240 assign_error: 1241 while (--n >= 0) { 1242 virtio_ccw_set_guest_notifier(dev, n, !assigned, false); 1243 } 1244 irqroute_error: 1245 if (with_irqfd && assigned) { 1246 virtio_ccw_release_irqroutes(dev, nvqs); 1247 } 1248 return r; 1249 } 1250 1251 static void virtio_ccw_save_queue(DeviceState *d, int n, QEMUFile *f) 1252 { 1253 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1254 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1255 1256 qemu_put_be16(f, virtio_queue_vector(vdev, n)); 1257 } 1258 1259 static int virtio_ccw_load_queue(DeviceState *d, int n, QEMUFile *f) 1260 { 1261 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1262 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1263 uint16_t vector; 1264 1265 qemu_get_be16s(f, &vector); 1266 virtio_queue_set_vector(vdev, n , vector); 1267 1268 return 0; 1269 } 1270 1271 static void virtio_ccw_save_config(DeviceState *d, QEMUFile *f) 1272 { 1273 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1274 vmstate_save_state(f, &vmstate_virtio_ccw_dev, dev, NULL); 1275 } 1276 1277 static int virtio_ccw_load_config(DeviceState *d, QEMUFile *f) 1278 { 1279 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1280 return vmstate_load_state(f, &vmstate_virtio_ccw_dev, dev, 1); 1281 } 1282 1283 static void virtio_ccw_pre_plugged(DeviceState *d, Error **errp) 1284 { 1285 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1286 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1287 1288 if (dev->max_rev >= 1) { 1289 virtio_add_feature(&vdev->host_features, VIRTIO_F_VERSION_1); 1290 } 1291 } 1292 1293 /* This is called by virtio-bus just after the device is plugged. */ 1294 static void virtio_ccw_device_plugged(DeviceState *d, Error **errp) 1295 { 1296 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1297 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1298 CcwDevice *ccw_dev = CCW_DEVICE(d); 1299 SubchDev *sch = ccw_dev->sch; 1300 int n = virtio_get_num_queues(vdev); 1301 S390FLICState *flic = s390_get_flic(); 1302 1303 if (!virtio_has_feature(vdev->host_features, VIRTIO_F_VERSION_1)) { 1304 dev->max_rev = 0; 1305 } 1306 1307 if (virtio_get_num_queues(vdev) > VIRTIO_QUEUE_MAX) { 1308 error_setg(errp, "The number of virtqueues %d " 1309 "exceeds virtio limit %d", n, 1310 VIRTIO_QUEUE_MAX); 1311 return; 1312 } 1313 if (virtio_get_num_queues(vdev) > flic->adapter_routes_max_batch) { 1314 error_setg(errp, "The number of virtqueues %d " 1315 "exceeds flic adapter route limit %d", n, 1316 flic->adapter_routes_max_batch); 1317 return; 1318 } 1319 1320 sch->id.cu_model = virtio_bus_get_vdev_id(&dev->bus); 1321 1322 1323 css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid, 1324 d->hotplugged, 1); 1325 } 1326 1327 static void virtio_ccw_device_unplugged(DeviceState *d) 1328 { 1329 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1330 1331 virtio_ccw_stop_ioeventfd(dev); 1332 } 1333 /**************** Virtio-ccw Bus Device Descriptions *******************/ 1334 1335 static Property virtio_ccw_net_properties[] = { 1336 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1337 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1338 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1339 VIRTIO_CCW_MAX_REV), 1340 DEFINE_PROP_END_OF_LIST(), 1341 }; 1342 1343 static void virtio_ccw_net_class_init(ObjectClass *klass, void *data) 1344 { 1345 DeviceClass *dc = DEVICE_CLASS(klass); 1346 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1347 1348 k->realize = virtio_ccw_net_realize; 1349 k->unrealize = virtio_ccw_unrealize; 1350 dc->props = virtio_ccw_net_properties; 1351 set_bit(DEVICE_CATEGORY_NETWORK, dc->categories); 1352 } 1353 1354 static const TypeInfo virtio_ccw_net = { 1355 .name = TYPE_VIRTIO_NET_CCW, 1356 .parent = TYPE_VIRTIO_CCW_DEVICE, 1357 .instance_size = sizeof(VirtIONetCcw), 1358 .instance_init = virtio_ccw_net_instance_init, 1359 .class_init = virtio_ccw_net_class_init, 1360 }; 1361 1362 static Property virtio_ccw_blk_properties[] = { 1363 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1364 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1365 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1366 VIRTIO_CCW_MAX_REV), 1367 DEFINE_PROP_END_OF_LIST(), 1368 }; 1369 1370 static void virtio_ccw_blk_class_init(ObjectClass *klass, void *data) 1371 { 1372 DeviceClass *dc = DEVICE_CLASS(klass); 1373 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1374 1375 k->realize = virtio_ccw_blk_realize; 1376 k->unrealize = virtio_ccw_unrealize; 1377 dc->props = virtio_ccw_blk_properties; 1378 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 1379 } 1380 1381 static const TypeInfo virtio_ccw_blk = { 1382 .name = TYPE_VIRTIO_BLK_CCW, 1383 .parent = TYPE_VIRTIO_CCW_DEVICE, 1384 .instance_size = sizeof(VirtIOBlkCcw), 1385 .instance_init = virtio_ccw_blk_instance_init, 1386 .class_init = virtio_ccw_blk_class_init, 1387 }; 1388 1389 static Property virtio_ccw_serial_properties[] = { 1390 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1391 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1392 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1393 VIRTIO_CCW_MAX_REV), 1394 DEFINE_PROP_END_OF_LIST(), 1395 }; 1396 1397 static void virtio_ccw_serial_class_init(ObjectClass *klass, void *data) 1398 { 1399 DeviceClass *dc = DEVICE_CLASS(klass); 1400 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1401 1402 k->realize = virtio_ccw_serial_realize; 1403 k->unrealize = virtio_ccw_unrealize; 1404 dc->props = virtio_ccw_serial_properties; 1405 set_bit(DEVICE_CATEGORY_INPUT, dc->categories); 1406 } 1407 1408 static const TypeInfo virtio_ccw_serial = { 1409 .name = TYPE_VIRTIO_SERIAL_CCW, 1410 .parent = TYPE_VIRTIO_CCW_DEVICE, 1411 .instance_size = sizeof(VirtioSerialCcw), 1412 .instance_init = virtio_ccw_serial_instance_init, 1413 .class_init = virtio_ccw_serial_class_init, 1414 }; 1415 1416 static Property virtio_ccw_balloon_properties[] = { 1417 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1418 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1419 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1420 VIRTIO_CCW_MAX_REV), 1421 DEFINE_PROP_END_OF_LIST(), 1422 }; 1423 1424 static void virtio_ccw_balloon_class_init(ObjectClass *klass, void *data) 1425 { 1426 DeviceClass *dc = DEVICE_CLASS(klass); 1427 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1428 1429 k->realize = virtio_ccw_balloon_realize; 1430 k->unrealize = virtio_ccw_unrealize; 1431 dc->props = virtio_ccw_balloon_properties; 1432 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 1433 } 1434 1435 static const TypeInfo virtio_ccw_balloon = { 1436 .name = TYPE_VIRTIO_BALLOON_CCW, 1437 .parent = TYPE_VIRTIO_CCW_DEVICE, 1438 .instance_size = sizeof(VirtIOBalloonCcw), 1439 .instance_init = virtio_ccw_balloon_instance_init, 1440 .class_init = virtio_ccw_balloon_class_init, 1441 }; 1442 1443 static Property virtio_ccw_scsi_properties[] = { 1444 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1445 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1446 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1447 VIRTIO_CCW_MAX_REV), 1448 DEFINE_PROP_END_OF_LIST(), 1449 }; 1450 1451 static void virtio_ccw_scsi_class_init(ObjectClass *klass, void *data) 1452 { 1453 DeviceClass *dc = DEVICE_CLASS(klass); 1454 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1455 1456 k->realize = virtio_ccw_scsi_realize; 1457 k->unrealize = virtio_ccw_unrealize; 1458 dc->props = virtio_ccw_scsi_properties; 1459 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 1460 } 1461 1462 static const TypeInfo virtio_ccw_scsi = { 1463 .name = TYPE_VIRTIO_SCSI_CCW, 1464 .parent = TYPE_VIRTIO_CCW_DEVICE, 1465 .instance_size = sizeof(VirtIOSCSICcw), 1466 .instance_init = virtio_ccw_scsi_instance_init, 1467 .class_init = virtio_ccw_scsi_class_init, 1468 }; 1469 1470 #ifdef CONFIG_VHOST_SCSI 1471 static Property vhost_ccw_scsi_properties[] = { 1472 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1473 VIRTIO_CCW_MAX_REV), 1474 DEFINE_PROP_END_OF_LIST(), 1475 }; 1476 1477 static void vhost_ccw_scsi_class_init(ObjectClass *klass, void *data) 1478 { 1479 DeviceClass *dc = DEVICE_CLASS(klass); 1480 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1481 1482 k->realize = vhost_ccw_scsi_realize; 1483 k->unrealize = virtio_ccw_unrealize; 1484 dc->props = vhost_ccw_scsi_properties; 1485 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 1486 } 1487 1488 static const TypeInfo vhost_ccw_scsi = { 1489 .name = TYPE_VHOST_SCSI_CCW, 1490 .parent = TYPE_VIRTIO_CCW_DEVICE, 1491 .instance_size = sizeof(VHostSCSICcw), 1492 .instance_init = vhost_ccw_scsi_instance_init, 1493 .class_init = vhost_ccw_scsi_class_init, 1494 }; 1495 #endif 1496 1497 static void virtio_ccw_rng_instance_init(Object *obj) 1498 { 1499 VirtIORNGCcw *dev = VIRTIO_RNG_CCW(obj); 1500 1501 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1502 TYPE_VIRTIO_RNG); 1503 } 1504 1505 static Property virtio_ccw_rng_properties[] = { 1506 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1507 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1508 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1509 VIRTIO_CCW_MAX_REV), 1510 DEFINE_PROP_END_OF_LIST(), 1511 }; 1512 1513 static void virtio_ccw_rng_class_init(ObjectClass *klass, void *data) 1514 { 1515 DeviceClass *dc = DEVICE_CLASS(klass); 1516 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1517 1518 k->realize = virtio_ccw_rng_realize; 1519 k->unrealize = virtio_ccw_unrealize; 1520 dc->props = virtio_ccw_rng_properties; 1521 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 1522 } 1523 1524 static const TypeInfo virtio_ccw_rng = { 1525 .name = TYPE_VIRTIO_RNG_CCW, 1526 .parent = TYPE_VIRTIO_CCW_DEVICE, 1527 .instance_size = sizeof(VirtIORNGCcw), 1528 .instance_init = virtio_ccw_rng_instance_init, 1529 .class_init = virtio_ccw_rng_class_init, 1530 }; 1531 1532 static Property virtio_ccw_crypto_properties[] = { 1533 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1534 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1535 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1536 VIRTIO_CCW_MAX_REV), 1537 DEFINE_PROP_END_OF_LIST(), 1538 }; 1539 1540 static void virtio_ccw_crypto_instance_init(Object *obj) 1541 { 1542 VirtIOCryptoCcw *dev = VIRTIO_CRYPTO_CCW(obj); 1543 VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj); 1544 1545 ccw_dev->force_revision_1 = true; 1546 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1547 TYPE_VIRTIO_CRYPTO); 1548 } 1549 1550 static void virtio_ccw_crypto_class_init(ObjectClass *klass, void *data) 1551 { 1552 DeviceClass *dc = DEVICE_CLASS(klass); 1553 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1554 1555 k->realize = virtio_ccw_crypto_realize; 1556 k->unrealize = virtio_ccw_unrealize; 1557 dc->props = virtio_ccw_crypto_properties; 1558 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 1559 } 1560 1561 static const TypeInfo virtio_ccw_crypto = { 1562 .name = TYPE_VIRTIO_CRYPTO_CCW, 1563 .parent = TYPE_VIRTIO_CCW_DEVICE, 1564 .instance_size = sizeof(VirtIOCryptoCcw), 1565 .instance_init = virtio_ccw_crypto_instance_init, 1566 .class_init = virtio_ccw_crypto_class_init, 1567 }; 1568 1569 static Property virtio_ccw_gpu_properties[] = { 1570 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1571 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1572 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1573 VIRTIO_CCW_MAX_REV), 1574 DEFINE_PROP_END_OF_LIST(), 1575 }; 1576 1577 static void virtio_ccw_gpu_instance_init(Object *obj) 1578 { 1579 VirtIOGPUCcw *dev = VIRTIO_GPU_CCW(obj); 1580 VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj); 1581 1582 ccw_dev->force_revision_1 = true; 1583 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1584 TYPE_VIRTIO_GPU); 1585 } 1586 1587 static void virtio_ccw_gpu_class_init(ObjectClass *klass, void *data) 1588 { 1589 DeviceClass *dc = DEVICE_CLASS(klass); 1590 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1591 1592 k->realize = virtio_ccw_gpu_realize; 1593 k->unrealize = virtio_ccw_unrealize; 1594 dc->props = virtio_ccw_gpu_properties; 1595 dc->hotpluggable = false; 1596 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories); 1597 } 1598 1599 static const TypeInfo virtio_ccw_gpu = { 1600 .name = TYPE_VIRTIO_GPU_CCW, 1601 .parent = TYPE_VIRTIO_CCW_DEVICE, 1602 .instance_size = sizeof(VirtIOGPUCcw), 1603 .instance_init = virtio_ccw_gpu_instance_init, 1604 .class_init = virtio_ccw_gpu_class_init, 1605 }; 1606 1607 static Property virtio_ccw_input_properties[] = { 1608 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1609 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1610 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1611 VIRTIO_CCW_MAX_REV), 1612 DEFINE_PROP_END_OF_LIST(), 1613 }; 1614 1615 static void virtio_ccw_input_class_init(ObjectClass *klass, void *data) 1616 { 1617 DeviceClass *dc = DEVICE_CLASS(klass); 1618 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1619 1620 k->realize = virtio_ccw_input_realize; 1621 k->unrealize = virtio_ccw_unrealize; 1622 dc->props = virtio_ccw_input_properties; 1623 set_bit(DEVICE_CATEGORY_INPUT, dc->categories); 1624 } 1625 1626 static void virtio_ccw_keyboard_instance_init(Object *obj) 1627 { 1628 VirtIOInputHIDCcw *dev = VIRTIO_INPUT_HID_CCW(obj); 1629 VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj); 1630 1631 ccw_dev->force_revision_1 = true; 1632 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1633 TYPE_VIRTIO_KEYBOARD); 1634 } 1635 1636 static void virtio_ccw_mouse_instance_init(Object *obj) 1637 { 1638 VirtIOInputHIDCcw *dev = VIRTIO_INPUT_HID_CCW(obj); 1639 VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj); 1640 1641 ccw_dev->force_revision_1 = true; 1642 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1643 TYPE_VIRTIO_MOUSE); 1644 } 1645 1646 static void virtio_ccw_tablet_instance_init(Object *obj) 1647 { 1648 VirtIOInputHIDCcw *dev = VIRTIO_INPUT_HID_CCW(obj); 1649 VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj); 1650 1651 ccw_dev->force_revision_1 = true; 1652 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1653 TYPE_VIRTIO_TABLET); 1654 } 1655 1656 static const TypeInfo virtio_ccw_input = { 1657 .name = TYPE_VIRTIO_INPUT_CCW, 1658 .parent = TYPE_VIRTIO_CCW_DEVICE, 1659 .instance_size = sizeof(VirtIOInputCcw), 1660 .class_init = virtio_ccw_input_class_init, 1661 .abstract = true, 1662 }; 1663 1664 static const TypeInfo virtio_ccw_input_hid = { 1665 .name = TYPE_VIRTIO_INPUT_HID_CCW, 1666 .parent = TYPE_VIRTIO_INPUT_CCW, 1667 .instance_size = sizeof(VirtIOInputHIDCcw), 1668 .abstract = true, 1669 }; 1670 1671 static const TypeInfo virtio_ccw_keyboard = { 1672 .name = TYPE_VIRTIO_KEYBOARD_CCW, 1673 .parent = TYPE_VIRTIO_INPUT_HID_CCW, 1674 .instance_size = sizeof(VirtIOInputHIDCcw), 1675 .instance_init = virtio_ccw_keyboard_instance_init, 1676 }; 1677 1678 static const TypeInfo virtio_ccw_mouse = { 1679 .name = TYPE_VIRTIO_MOUSE_CCW, 1680 .parent = TYPE_VIRTIO_INPUT_HID_CCW, 1681 .instance_size = sizeof(VirtIOInputHIDCcw), 1682 .instance_init = virtio_ccw_mouse_instance_init, 1683 }; 1684 1685 static const TypeInfo virtio_ccw_tablet = { 1686 .name = TYPE_VIRTIO_TABLET_CCW, 1687 .parent = TYPE_VIRTIO_INPUT_HID_CCW, 1688 .instance_size = sizeof(VirtIOInputHIDCcw), 1689 .instance_init = virtio_ccw_tablet_instance_init, 1690 }; 1691 1692 static void virtio_ccw_busdev_realize(DeviceState *dev, Error **errp) 1693 { 1694 VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev; 1695 1696 virtio_ccw_bus_new(&_dev->bus, sizeof(_dev->bus), _dev); 1697 virtio_ccw_device_realize(_dev, errp); 1698 } 1699 1700 static void virtio_ccw_busdev_unrealize(DeviceState *dev, Error **errp) 1701 { 1702 VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev; 1703 VirtIOCCWDeviceClass *_info = VIRTIO_CCW_DEVICE_GET_CLASS(dev); 1704 1705 _info->unrealize(_dev, errp); 1706 } 1707 1708 static void virtio_ccw_busdev_unplug(HotplugHandler *hotplug_dev, 1709 DeviceState *dev, Error **errp) 1710 { 1711 VirtioCcwDevice *_dev = to_virtio_ccw_dev_fast(dev); 1712 1713 virtio_ccw_stop_ioeventfd(_dev); 1714 } 1715 1716 static void virtio_ccw_device_class_init(ObjectClass *klass, void *data) 1717 { 1718 DeviceClass *dc = DEVICE_CLASS(klass); 1719 CCWDeviceClass *k = CCW_DEVICE_CLASS(dc); 1720 VirtIOCCWDeviceClass *vdc = VIRTIO_CCW_DEVICE_CLASS(klass); 1721 1722 k->unplug = virtio_ccw_busdev_unplug; 1723 dc->realize = virtio_ccw_busdev_realize; 1724 dc->unrealize = virtio_ccw_busdev_unrealize; 1725 dc->bus_type = TYPE_VIRTUAL_CSS_BUS; 1726 device_class_set_parent_reset(dc, virtio_ccw_reset, &vdc->parent_reset); 1727 } 1728 1729 static const TypeInfo virtio_ccw_device_info = { 1730 .name = TYPE_VIRTIO_CCW_DEVICE, 1731 .parent = TYPE_CCW_DEVICE, 1732 .instance_size = sizeof(VirtioCcwDevice), 1733 .class_init = virtio_ccw_device_class_init, 1734 .class_size = sizeof(VirtIOCCWDeviceClass), 1735 .abstract = true, 1736 }; 1737 1738 /* virtio-ccw-bus */ 1739 1740 static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size, 1741 VirtioCcwDevice *dev) 1742 { 1743 DeviceState *qdev = DEVICE(dev); 1744 char virtio_bus_name[] = "virtio-bus"; 1745 1746 qbus_create_inplace(bus, bus_size, TYPE_VIRTIO_CCW_BUS, 1747 qdev, virtio_bus_name); 1748 } 1749 1750 static void virtio_ccw_bus_class_init(ObjectClass *klass, void *data) 1751 { 1752 VirtioBusClass *k = VIRTIO_BUS_CLASS(klass); 1753 BusClass *bus_class = BUS_CLASS(klass); 1754 1755 bus_class->max_dev = 1; 1756 k->notify = virtio_ccw_notify; 1757 k->vmstate_change = virtio_ccw_vmstate_change; 1758 k->query_guest_notifiers = virtio_ccw_query_guest_notifiers; 1759 k->set_guest_notifiers = virtio_ccw_set_guest_notifiers; 1760 k->save_queue = virtio_ccw_save_queue; 1761 k->load_queue = virtio_ccw_load_queue; 1762 k->save_config = virtio_ccw_save_config; 1763 k->load_config = virtio_ccw_load_config; 1764 k->pre_plugged = virtio_ccw_pre_plugged; 1765 k->device_plugged = virtio_ccw_device_plugged; 1766 k->device_unplugged = virtio_ccw_device_unplugged; 1767 k->ioeventfd_enabled = virtio_ccw_ioeventfd_enabled; 1768 k->ioeventfd_assign = virtio_ccw_ioeventfd_assign; 1769 } 1770 1771 static const TypeInfo virtio_ccw_bus_info = { 1772 .name = TYPE_VIRTIO_CCW_BUS, 1773 .parent = TYPE_VIRTIO_BUS, 1774 .instance_size = sizeof(VirtioCcwBusState), 1775 .class_init = virtio_ccw_bus_class_init, 1776 }; 1777 1778 #ifdef CONFIG_VIRTFS 1779 static Property virtio_ccw_9p_properties[] = { 1780 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1781 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1782 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1783 VIRTIO_CCW_MAX_REV), 1784 DEFINE_PROP_END_OF_LIST(), 1785 }; 1786 1787 static void virtio_ccw_9p_realize(VirtioCcwDevice *ccw_dev, Error **errp) 1788 { 1789 V9fsCCWState *dev = VIRTIO_9P_CCW(ccw_dev); 1790 DeviceState *vdev = DEVICE(&dev->vdev); 1791 1792 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 1793 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 1794 } 1795 1796 static void virtio_ccw_9p_class_init(ObjectClass *klass, void *data) 1797 { 1798 DeviceClass *dc = DEVICE_CLASS(klass); 1799 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1800 1801 k->unrealize = virtio_ccw_unrealize; 1802 k->realize = virtio_ccw_9p_realize; 1803 dc->props = virtio_ccw_9p_properties; 1804 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 1805 } 1806 1807 static void virtio_ccw_9p_instance_init(Object *obj) 1808 { 1809 V9fsCCWState *dev = VIRTIO_9P_CCW(obj); 1810 1811 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1812 TYPE_VIRTIO_9P); 1813 } 1814 1815 static const TypeInfo virtio_ccw_9p_info = { 1816 .name = TYPE_VIRTIO_9P_CCW, 1817 .parent = TYPE_VIRTIO_CCW_DEVICE, 1818 .instance_size = sizeof(V9fsCCWState), 1819 .instance_init = virtio_ccw_9p_instance_init, 1820 .class_init = virtio_ccw_9p_class_init, 1821 }; 1822 #endif 1823 1824 #ifdef CONFIG_VHOST_VSOCK 1825 1826 static Property vhost_vsock_ccw_properties[] = { 1827 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1828 VIRTIO_CCW_MAX_REV), 1829 DEFINE_PROP_END_OF_LIST(), 1830 }; 1831 1832 static void vhost_vsock_ccw_realize(VirtioCcwDevice *ccw_dev, Error **errp) 1833 { 1834 VHostVSockCCWState *dev = VHOST_VSOCK_CCW(ccw_dev); 1835 DeviceState *vdev = DEVICE(&dev->vdev); 1836 Error *err = NULL; 1837 1838 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 1839 object_property_set_bool(OBJECT(vdev), true, "realized", &err); 1840 error_propagate(errp, err); 1841 } 1842 1843 static void vhost_vsock_ccw_class_init(ObjectClass *klass, void *data) 1844 { 1845 DeviceClass *dc = DEVICE_CLASS(klass); 1846 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1847 1848 k->realize = vhost_vsock_ccw_realize; 1849 k->unrealize = virtio_ccw_unrealize; 1850 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 1851 dc->props = vhost_vsock_ccw_properties; 1852 } 1853 1854 static void vhost_vsock_ccw_instance_init(Object *obj) 1855 { 1856 VHostVSockCCWState *dev = VHOST_VSOCK_CCW(obj); 1857 1858 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1859 TYPE_VHOST_VSOCK); 1860 } 1861 1862 static const TypeInfo vhost_vsock_ccw_info = { 1863 .name = TYPE_VHOST_VSOCK_CCW, 1864 .parent = TYPE_VIRTIO_CCW_DEVICE, 1865 .instance_size = sizeof(VHostVSockCCWState), 1866 .instance_init = vhost_vsock_ccw_instance_init, 1867 .class_init = vhost_vsock_ccw_class_init, 1868 }; 1869 #endif 1870 1871 static void virtio_ccw_register(void) 1872 { 1873 type_register_static(&virtio_ccw_bus_info); 1874 type_register_static(&virtio_ccw_device_info); 1875 type_register_static(&virtio_ccw_serial); 1876 type_register_static(&virtio_ccw_blk); 1877 type_register_static(&virtio_ccw_net); 1878 type_register_static(&virtio_ccw_balloon); 1879 type_register_static(&virtio_ccw_scsi); 1880 #ifdef CONFIG_VHOST_SCSI 1881 type_register_static(&vhost_ccw_scsi); 1882 #endif 1883 type_register_static(&virtio_ccw_rng); 1884 #ifdef CONFIG_VIRTFS 1885 type_register_static(&virtio_ccw_9p_info); 1886 #endif 1887 #ifdef CONFIG_VHOST_VSOCK 1888 type_register_static(&vhost_vsock_ccw_info); 1889 #endif 1890 type_register_static(&virtio_ccw_crypto); 1891 type_register_static(&virtio_ccw_gpu); 1892 type_register_static(&virtio_ccw_input); 1893 type_register_static(&virtio_ccw_input_hid); 1894 type_register_static(&virtio_ccw_keyboard); 1895 type_register_static(&virtio_ccw_mouse); 1896 type_register_static(&virtio_ccw_tablet); 1897 } 1898 1899 type_init(virtio_ccw_register) 1900