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/blockdev.h" 17 #include "sysemu/sysemu.h" 18 #include "sysemu/kvm.h" 19 #include "net/net.h" 20 #include "hw/virtio/virtio.h" 21 #include "hw/virtio/virtio-serial.h" 22 #include "hw/virtio/virtio-net.h" 23 #include "hw/sysbus.h" 24 #include "qemu/bitops.h" 25 #include "qemu/error-report.h" 26 #include "hw/virtio/virtio-access.h" 27 #include "hw/virtio/virtio-bus.h" 28 #include "hw/s390x/adapter.h" 29 #include "hw/s390x/s390_flic.h" 30 31 #include "hw/s390x/ioinst.h" 32 #include "hw/s390x/css.h" 33 #include "virtio-ccw.h" 34 #include "trace.h" 35 #include "hw/s390x/css-bridge.h" 36 #include "hw/s390x/s390-virtio-ccw.h" 37 38 #define NR_CLASSIC_INDICATOR_BITS 64 39 40 static int virtio_ccw_dev_post_load(void *opaque, int version_id) 41 { 42 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(opaque); 43 CcwDevice *ccw_dev = CCW_DEVICE(dev); 44 CCWDeviceClass *ck = CCW_DEVICE_GET_CLASS(ccw_dev); 45 46 ccw_dev->sch->driver_data = dev; 47 if (ccw_dev->sch->thinint_active) { 48 dev->routes.adapter.adapter_id = css_get_adapter_id( 49 CSS_IO_ADAPTER_VIRTIO, 50 dev->thinint_isc); 51 } 52 /* Re-fill subch_id after loading the subchannel states.*/ 53 if (ck->refill_ids) { 54 ck->refill_ids(ccw_dev); 55 } 56 return 0; 57 } 58 59 typedef struct VirtioCcwDeviceTmp { 60 VirtioCcwDevice *parent; 61 uint16_t config_vector; 62 } VirtioCcwDeviceTmp; 63 64 static int virtio_ccw_dev_tmp_pre_save(void *opaque) 65 { 66 VirtioCcwDeviceTmp *tmp = opaque; 67 VirtioCcwDevice *dev = tmp->parent; 68 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 69 70 tmp->config_vector = vdev->config_vector; 71 72 return 0; 73 } 74 75 static int virtio_ccw_dev_tmp_post_load(void *opaque, int version_id) 76 { 77 VirtioCcwDeviceTmp *tmp = opaque; 78 VirtioCcwDevice *dev = tmp->parent; 79 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 80 81 vdev->config_vector = tmp->config_vector; 82 return 0; 83 } 84 85 const VMStateDescription vmstate_virtio_ccw_dev_tmp = { 86 .name = "s390_virtio_ccw_dev_tmp", 87 .pre_save = virtio_ccw_dev_tmp_pre_save, 88 .post_load = virtio_ccw_dev_tmp_post_load, 89 .fields = (VMStateField[]) { 90 VMSTATE_UINT16(config_vector, VirtioCcwDeviceTmp), 91 VMSTATE_END_OF_LIST() 92 } 93 }; 94 95 const VMStateDescription vmstate_virtio_ccw_dev = { 96 .name = "s390_virtio_ccw_dev", 97 .version_id = 1, 98 .minimum_version_id = 1, 99 .post_load = virtio_ccw_dev_post_load, 100 .fields = (VMStateField[]) { 101 VMSTATE_CCW_DEVICE(parent_obj, VirtioCcwDevice), 102 VMSTATE_PTR_TO_IND_ADDR(indicators, VirtioCcwDevice), 103 VMSTATE_PTR_TO_IND_ADDR(indicators2, VirtioCcwDevice), 104 VMSTATE_PTR_TO_IND_ADDR(summary_indicator, VirtioCcwDevice), 105 /* 106 * Ugly hack because VirtIODevice does not migrate itself. 107 * This also makes legacy via vmstate_save_state possible. 108 */ 109 VMSTATE_WITH_TMP(VirtioCcwDevice, VirtioCcwDeviceTmp, 110 vmstate_virtio_ccw_dev_tmp), 111 VMSTATE_STRUCT(routes, VirtioCcwDevice, 1, vmstate_adapter_routes, 112 AdapterRoutes), 113 VMSTATE_UINT8(thinint_isc, VirtioCcwDevice), 114 VMSTATE_INT32(revision, VirtioCcwDevice), 115 VMSTATE_END_OF_LIST() 116 } 117 }; 118 119 static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size, 120 VirtioCcwDevice *dev); 121 122 VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch) 123 { 124 VirtIODevice *vdev = NULL; 125 VirtioCcwDevice *dev = sch->driver_data; 126 127 if (dev) { 128 vdev = virtio_bus_get_device(&dev->bus); 129 } 130 return vdev; 131 } 132 133 static void virtio_ccw_start_ioeventfd(VirtioCcwDevice *dev) 134 { 135 virtio_bus_start_ioeventfd(&dev->bus); 136 } 137 138 static void virtio_ccw_stop_ioeventfd(VirtioCcwDevice *dev) 139 { 140 virtio_bus_stop_ioeventfd(&dev->bus); 141 } 142 143 static bool virtio_ccw_ioeventfd_enabled(DeviceState *d) 144 { 145 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 146 147 return (dev->flags & VIRTIO_CCW_FLAG_USE_IOEVENTFD) != 0; 148 } 149 150 static int virtio_ccw_ioeventfd_assign(DeviceState *d, EventNotifier *notifier, 151 int n, bool assign) 152 { 153 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 154 CcwDevice *ccw_dev = CCW_DEVICE(dev); 155 SubchDev *sch = ccw_dev->sch; 156 uint32_t sch_id = (css_build_subchannel_id(sch) << 16) | sch->schid; 157 158 return s390_assign_subch_ioeventfd(notifier, sch_id, n, assign); 159 } 160 161 /* Communication blocks used by several channel commands. */ 162 typedef struct VqInfoBlockLegacy { 163 uint64_t queue; 164 uint32_t align; 165 uint16_t index; 166 uint16_t num; 167 } QEMU_PACKED VqInfoBlockLegacy; 168 169 typedef struct VqInfoBlock { 170 uint64_t desc; 171 uint32_t res0; 172 uint16_t index; 173 uint16_t num; 174 uint64_t avail; 175 uint64_t used; 176 } QEMU_PACKED VqInfoBlock; 177 178 typedef struct VqConfigBlock { 179 uint16_t index; 180 uint16_t num_max; 181 } QEMU_PACKED VqConfigBlock; 182 183 typedef struct VirtioFeatDesc { 184 uint32_t features; 185 uint8_t index; 186 } QEMU_PACKED VirtioFeatDesc; 187 188 typedef struct VirtioThinintInfo { 189 hwaddr summary_indicator; 190 hwaddr device_indicator; 191 uint64_t ind_bit; 192 uint8_t isc; 193 } QEMU_PACKED VirtioThinintInfo; 194 195 typedef struct VirtioRevInfo { 196 uint16_t revision; 197 uint16_t length; 198 uint8_t data[0]; 199 } QEMU_PACKED VirtioRevInfo; 200 201 /* Specify where the virtqueues for the subchannel are in guest memory. */ 202 static int virtio_ccw_set_vqs(SubchDev *sch, VqInfoBlock *info, 203 VqInfoBlockLegacy *linfo) 204 { 205 VirtIODevice *vdev = virtio_ccw_get_vdev(sch); 206 uint16_t index = info ? info->index : linfo->index; 207 uint16_t num = info ? info->num : linfo->num; 208 uint64_t desc = info ? info->desc : linfo->queue; 209 210 if (index >= VIRTIO_QUEUE_MAX) { 211 return -EINVAL; 212 } 213 214 /* Current code in virtio.c relies on 4K alignment. */ 215 if (linfo && desc && (linfo->align != 4096)) { 216 return -EINVAL; 217 } 218 219 if (!vdev) { 220 return -EINVAL; 221 } 222 223 if (info) { 224 virtio_queue_set_rings(vdev, index, desc, info->avail, info->used); 225 } else { 226 virtio_queue_set_addr(vdev, index, desc); 227 } 228 if (!desc) { 229 virtio_queue_set_vector(vdev, index, VIRTIO_NO_VECTOR); 230 } else { 231 if (info) { 232 /* virtio-1 allows changing the ring size. */ 233 if (virtio_queue_get_max_num(vdev, index) < num) { 234 /* Fail if we exceed the maximum number. */ 235 return -EINVAL; 236 } 237 virtio_queue_set_num(vdev, index, num); 238 } else if (virtio_queue_get_num(vdev, index) > num) { 239 /* Fail if we don't have a big enough queue. */ 240 return -EINVAL; 241 } 242 /* We ignore possible increased num for legacy for compatibility. */ 243 virtio_queue_set_vector(vdev, index, index); 244 } 245 /* tell notify handler in case of config change */ 246 vdev->config_vector = VIRTIO_QUEUE_MAX; 247 return 0; 248 } 249 250 static void virtio_ccw_reset_virtio(VirtioCcwDevice *dev, VirtIODevice *vdev) 251 { 252 CcwDevice *ccw_dev = CCW_DEVICE(dev); 253 254 virtio_ccw_stop_ioeventfd(dev); 255 virtio_reset(vdev); 256 if (dev->indicators) { 257 release_indicator(&dev->routes.adapter, dev->indicators); 258 dev->indicators = NULL; 259 } 260 if (dev->indicators2) { 261 release_indicator(&dev->routes.adapter, dev->indicators2); 262 dev->indicators2 = NULL; 263 } 264 if (dev->summary_indicator) { 265 release_indicator(&dev->routes.adapter, dev->summary_indicator); 266 dev->summary_indicator = NULL; 267 } 268 ccw_dev->sch->thinint_active = false; 269 } 270 271 static int virtio_ccw_handle_set_vq(SubchDev *sch, CCW1 ccw, bool check_len, 272 bool is_legacy) 273 { 274 int ret; 275 VqInfoBlock info; 276 VqInfoBlockLegacy linfo; 277 size_t info_len = is_legacy ? sizeof(linfo) : sizeof(info); 278 279 if (check_len) { 280 if (ccw.count != info_len) { 281 return -EINVAL; 282 } 283 } else if (ccw.count < info_len) { 284 /* Can't execute command. */ 285 return -EINVAL; 286 } 287 if (!ccw.cda) { 288 return -EFAULT; 289 } 290 if (is_legacy) { 291 ccw_dstream_read(&sch->cds, linfo); 292 be64_to_cpus(&linfo.queue); 293 be32_to_cpus(&linfo.align); 294 be16_to_cpus(&linfo.index); 295 be16_to_cpus(&linfo.num); 296 ret = virtio_ccw_set_vqs(sch, NULL, &linfo); 297 } else { 298 ccw_dstream_read(&sch->cds, info); 299 be64_to_cpus(&info.desc); 300 be16_to_cpus(&info.index); 301 be16_to_cpus(&info.num); 302 be64_to_cpus(&info.avail); 303 be64_to_cpus(&info.used); 304 ret = virtio_ccw_set_vqs(sch, &info, NULL); 305 } 306 sch->curr_status.scsw.count = 0; 307 return ret; 308 } 309 310 static int virtio_ccw_cb(SubchDev *sch, CCW1 ccw) 311 { 312 int ret; 313 VirtioRevInfo revinfo; 314 uint8_t status; 315 VirtioFeatDesc features; 316 hwaddr indicators; 317 VqConfigBlock vq_config; 318 VirtioCcwDevice *dev = sch->driver_data; 319 VirtIODevice *vdev = virtio_ccw_get_vdev(sch); 320 bool check_len; 321 int len; 322 VirtioThinintInfo thinint; 323 324 if (!dev) { 325 return -EINVAL; 326 } 327 328 trace_virtio_ccw_interpret_ccw(sch->cssid, sch->ssid, sch->schid, 329 ccw.cmd_code); 330 check_len = !((ccw.flags & CCW_FLAG_SLI) && !(ccw.flags & CCW_FLAG_DC)); 331 332 if (dev->force_revision_1 && dev->revision < 0 && 333 ccw.cmd_code != CCW_CMD_SET_VIRTIO_REV) { 334 /* 335 * virtio-1 drivers must start with negotiating to a revision >= 1, 336 * so post a command reject for all other commands 337 */ 338 return -ENOSYS; 339 } 340 341 /* Look at the command. */ 342 switch (ccw.cmd_code) { 343 case CCW_CMD_SET_VQ: 344 ret = virtio_ccw_handle_set_vq(sch, ccw, check_len, dev->revision < 1); 345 break; 346 case CCW_CMD_VDEV_RESET: 347 virtio_ccw_reset_virtio(dev, vdev); 348 ret = 0; 349 break; 350 case CCW_CMD_READ_FEAT: 351 if (check_len) { 352 if (ccw.count != sizeof(features)) { 353 ret = -EINVAL; 354 break; 355 } 356 } else if (ccw.count < sizeof(features)) { 357 /* Can't execute command. */ 358 ret = -EINVAL; 359 break; 360 } 361 if (!ccw.cda) { 362 ret = -EFAULT; 363 } else { 364 VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev); 365 366 ccw_dstream_advance(&sch->cds, sizeof(features.features)); 367 ccw_dstream_read(&sch->cds, features.index); 368 if (features.index == 0) { 369 if (dev->revision >= 1) { 370 /* Don't offer legacy features for modern devices. */ 371 features.features = (uint32_t) 372 (vdev->host_features & ~vdc->legacy_features); 373 } else { 374 features.features = (uint32_t)vdev->host_features; 375 } 376 } else if ((features.index == 1) && (dev->revision >= 1)) { 377 /* 378 * Only offer feature bits beyond 31 if the guest has 379 * negotiated at least revision 1. 380 */ 381 features.features = (uint32_t)(vdev->host_features >> 32); 382 } else { 383 /* Return zeroes if the guest supports more feature bits. */ 384 features.features = 0; 385 } 386 ccw_dstream_rewind(&sch->cds); 387 cpu_to_le32s(&features.features); 388 ccw_dstream_write(&sch->cds, features.features); 389 sch->curr_status.scsw.count = ccw.count - sizeof(features); 390 ret = 0; 391 } 392 break; 393 case CCW_CMD_WRITE_FEAT: 394 if (check_len) { 395 if (ccw.count != sizeof(features)) { 396 ret = -EINVAL; 397 break; 398 } 399 } else if (ccw.count < sizeof(features)) { 400 /* Can't execute command. */ 401 ret = -EINVAL; 402 break; 403 } 404 if (!ccw.cda) { 405 ret = -EFAULT; 406 } else { 407 ccw_dstream_read(&sch->cds, features); 408 le32_to_cpus(&features.features); 409 if (features.index == 0) { 410 virtio_set_features(vdev, 411 (vdev->guest_features & 0xffffffff00000000ULL) | 412 features.features); 413 } else if ((features.index == 1) && (dev->revision >= 1)) { 414 /* 415 * If the guest did not negotiate at least revision 1, 416 * we did not offer it any feature bits beyond 31. Such a 417 * guest passing us any bit here is therefore buggy. 418 */ 419 virtio_set_features(vdev, 420 (vdev->guest_features & 0x00000000ffffffffULL) | 421 ((uint64_t)features.features << 32)); 422 } else { 423 /* 424 * If the guest supports more feature bits, assert that it 425 * passes us zeroes for those we don't support. 426 */ 427 if (features.features) { 428 qemu_log_mask(LOG_GUEST_ERROR, 429 "Guest bug: features[%i]=%x (expected 0)", 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, 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 void virtio_ccw_unrealize(VirtioCcwDevice *dev, Error **errp) 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 ccw_dev->sch = NULL; 763 } 764 if (dev->indicators) { 765 release_indicator(&dev->routes.adapter, dev->indicators); 766 dev->indicators = NULL; 767 } 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 static void virtio_ccw_input_realize(VirtioCcwDevice *ccw_dev, Error **errp) 957 { 958 VirtIOInputCcw *dev = VIRTIO_INPUT_CCW(ccw_dev); 959 DeviceState *vdev = DEVICE(&dev->vdev); 960 961 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 962 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 963 } 964 965 /* DeviceState to VirtioCcwDevice. Note: used on datapath, 966 * be careful and test performance if you change this. 967 */ 968 static inline VirtioCcwDevice *to_virtio_ccw_dev_fast(DeviceState *d) 969 { 970 CcwDevice *ccw_dev = to_ccw_dev_fast(d); 971 972 return container_of(ccw_dev, VirtioCcwDevice, parent_obj); 973 } 974 975 static uint8_t virtio_set_ind_atomic(SubchDev *sch, uint64_t ind_loc, 976 uint8_t to_be_set) 977 { 978 uint8_t ind_old, ind_new; 979 hwaddr len = 1; 980 uint8_t *ind_addr; 981 982 ind_addr = cpu_physical_memory_map(ind_loc, &len, 1); 983 if (!ind_addr) { 984 error_report("%s(%x.%x.%04x): unable to access indicator", 985 __func__, sch->cssid, sch->ssid, sch->schid); 986 return -1; 987 } 988 do { 989 ind_old = *ind_addr; 990 ind_new = ind_old | to_be_set; 991 } while (atomic_cmpxchg(ind_addr, ind_old, ind_new) != ind_old); 992 trace_virtio_ccw_set_ind(ind_loc, ind_old, ind_new); 993 cpu_physical_memory_unmap(ind_addr, len, 1, len); 994 995 return ind_old; 996 } 997 998 static void virtio_ccw_notify(DeviceState *d, uint16_t vector) 999 { 1000 VirtioCcwDevice *dev = to_virtio_ccw_dev_fast(d); 1001 CcwDevice *ccw_dev = to_ccw_dev_fast(d); 1002 SubchDev *sch = ccw_dev->sch; 1003 uint64_t indicators; 1004 1005 /* queue indicators + secondary indicators */ 1006 if (vector >= VIRTIO_QUEUE_MAX + 64) { 1007 return; 1008 } 1009 1010 if (vector < VIRTIO_QUEUE_MAX) { 1011 if (!dev->indicators) { 1012 return; 1013 } 1014 if (sch->thinint_active) { 1015 /* 1016 * In the adapter interrupt case, indicators points to a 1017 * memory area that may be (way) larger than 64 bit and 1018 * ind_bit indicates the start of the indicators in a big 1019 * endian notation. 1020 */ 1021 uint64_t ind_bit = dev->routes.adapter.ind_offset; 1022 1023 virtio_set_ind_atomic(sch, dev->indicators->addr + 1024 (ind_bit + vector) / 8, 1025 0x80 >> ((ind_bit + vector) % 8)); 1026 if (!virtio_set_ind_atomic(sch, dev->summary_indicator->addr, 1027 0x01)) { 1028 css_adapter_interrupt(CSS_IO_ADAPTER_VIRTIO, dev->thinint_isc); 1029 } 1030 } else { 1031 indicators = address_space_ldq(&address_space_memory, 1032 dev->indicators->addr, 1033 MEMTXATTRS_UNSPECIFIED, 1034 NULL); 1035 indicators |= 1ULL << vector; 1036 address_space_stq(&address_space_memory, dev->indicators->addr, 1037 indicators, MEMTXATTRS_UNSPECIFIED, NULL); 1038 css_conditional_io_interrupt(sch); 1039 } 1040 } else { 1041 if (!dev->indicators2) { 1042 return; 1043 } 1044 vector = 0; 1045 indicators = address_space_ldq(&address_space_memory, 1046 dev->indicators2->addr, 1047 MEMTXATTRS_UNSPECIFIED, 1048 NULL); 1049 indicators |= 1ULL << vector; 1050 address_space_stq(&address_space_memory, dev->indicators2->addr, 1051 indicators, MEMTXATTRS_UNSPECIFIED, NULL); 1052 css_conditional_io_interrupt(sch); 1053 } 1054 } 1055 1056 static void virtio_ccw_reset(DeviceState *d) 1057 { 1058 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1059 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1060 VirtIOCCWDeviceClass *vdc = VIRTIO_CCW_DEVICE_GET_CLASS(dev); 1061 1062 virtio_ccw_reset_virtio(dev, vdev); 1063 if (vdc->parent_reset) { 1064 vdc->parent_reset(d); 1065 } 1066 } 1067 1068 static void virtio_ccw_vmstate_change(DeviceState *d, bool running) 1069 { 1070 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1071 1072 if (running) { 1073 virtio_ccw_start_ioeventfd(dev); 1074 } else { 1075 virtio_ccw_stop_ioeventfd(dev); 1076 } 1077 } 1078 1079 static bool virtio_ccw_query_guest_notifiers(DeviceState *d) 1080 { 1081 CcwDevice *dev = CCW_DEVICE(d); 1082 1083 return !!(dev->sch->curr_status.pmcw.flags & PMCW_FLAGS_MASK_ENA); 1084 } 1085 1086 static int virtio_ccw_get_mappings(VirtioCcwDevice *dev) 1087 { 1088 int r; 1089 CcwDevice *ccw_dev = CCW_DEVICE(dev); 1090 1091 if (!ccw_dev->sch->thinint_active) { 1092 return -EINVAL; 1093 } 1094 1095 r = map_indicator(&dev->routes.adapter, dev->summary_indicator); 1096 if (r) { 1097 return r; 1098 } 1099 r = map_indicator(&dev->routes.adapter, dev->indicators); 1100 if (r) { 1101 return r; 1102 } 1103 dev->routes.adapter.summary_addr = dev->summary_indicator->map; 1104 dev->routes.adapter.ind_addr = dev->indicators->map; 1105 1106 return 0; 1107 } 1108 1109 static int virtio_ccw_setup_irqroutes(VirtioCcwDevice *dev, int nvqs) 1110 { 1111 int i; 1112 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1113 int ret; 1114 S390FLICState *fs = s390_get_flic(); 1115 S390FLICStateClass *fsc = s390_get_flic_class(fs); 1116 1117 ret = virtio_ccw_get_mappings(dev); 1118 if (ret) { 1119 return ret; 1120 } 1121 for (i = 0; i < nvqs; i++) { 1122 if (!virtio_queue_get_num(vdev, i)) { 1123 break; 1124 } 1125 } 1126 dev->routes.num_routes = i; 1127 return fsc->add_adapter_routes(fs, &dev->routes); 1128 } 1129 1130 static void virtio_ccw_release_irqroutes(VirtioCcwDevice *dev, int nvqs) 1131 { 1132 S390FLICState *fs = s390_get_flic(); 1133 S390FLICStateClass *fsc = s390_get_flic_class(fs); 1134 1135 fsc->release_adapter_routes(fs, &dev->routes); 1136 } 1137 1138 static int virtio_ccw_add_irqfd(VirtioCcwDevice *dev, int n) 1139 { 1140 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1141 VirtQueue *vq = virtio_get_queue(vdev, n); 1142 EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); 1143 1144 return kvm_irqchip_add_irqfd_notifier_gsi(kvm_state, notifier, NULL, 1145 dev->routes.gsi[n]); 1146 } 1147 1148 static void virtio_ccw_remove_irqfd(VirtioCcwDevice *dev, int n) 1149 { 1150 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1151 VirtQueue *vq = virtio_get_queue(vdev, n); 1152 EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); 1153 int ret; 1154 1155 ret = kvm_irqchip_remove_irqfd_notifier_gsi(kvm_state, notifier, 1156 dev->routes.gsi[n]); 1157 assert(ret == 0); 1158 } 1159 1160 static int virtio_ccw_set_guest_notifier(VirtioCcwDevice *dev, int n, 1161 bool assign, bool with_irqfd) 1162 { 1163 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1164 VirtQueue *vq = virtio_get_queue(vdev, n); 1165 EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); 1166 VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); 1167 1168 if (assign) { 1169 int r = event_notifier_init(notifier, 0); 1170 1171 if (r < 0) { 1172 return r; 1173 } 1174 virtio_queue_set_guest_notifier_fd_handler(vq, true, with_irqfd); 1175 if (with_irqfd) { 1176 r = virtio_ccw_add_irqfd(dev, n); 1177 if (r) { 1178 virtio_queue_set_guest_notifier_fd_handler(vq, false, 1179 with_irqfd); 1180 return r; 1181 } 1182 } 1183 /* 1184 * We do not support individual masking for channel devices, so we 1185 * need to manually trigger any guest masking callbacks here. 1186 */ 1187 if (k->guest_notifier_mask && vdev->use_guest_notifier_mask) { 1188 k->guest_notifier_mask(vdev, n, false); 1189 } 1190 /* get lost events and re-inject */ 1191 if (k->guest_notifier_pending && 1192 k->guest_notifier_pending(vdev, n)) { 1193 event_notifier_set(notifier); 1194 } 1195 } else { 1196 if (k->guest_notifier_mask && vdev->use_guest_notifier_mask) { 1197 k->guest_notifier_mask(vdev, n, true); 1198 } 1199 if (with_irqfd) { 1200 virtio_ccw_remove_irqfd(dev, n); 1201 } 1202 virtio_queue_set_guest_notifier_fd_handler(vq, false, with_irqfd); 1203 event_notifier_cleanup(notifier); 1204 } 1205 return 0; 1206 } 1207 1208 static int virtio_ccw_set_guest_notifiers(DeviceState *d, int nvqs, 1209 bool assigned) 1210 { 1211 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1212 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1213 CcwDevice *ccw_dev = CCW_DEVICE(d); 1214 bool with_irqfd = ccw_dev->sch->thinint_active && kvm_irqfds_enabled(); 1215 int r, n; 1216 1217 if (with_irqfd && assigned) { 1218 /* irq routes need to be set up before assigning irqfds */ 1219 r = virtio_ccw_setup_irqroutes(dev, nvqs); 1220 if (r < 0) { 1221 goto irqroute_error; 1222 } 1223 } 1224 for (n = 0; n < nvqs; n++) { 1225 if (!virtio_queue_get_num(vdev, n)) { 1226 break; 1227 } 1228 r = virtio_ccw_set_guest_notifier(dev, n, assigned, with_irqfd); 1229 if (r < 0) { 1230 goto assign_error; 1231 } 1232 } 1233 if (with_irqfd && !assigned) { 1234 /* release irq routes after irqfds have been released */ 1235 virtio_ccw_release_irqroutes(dev, nvqs); 1236 } 1237 return 0; 1238 1239 assign_error: 1240 while (--n >= 0) { 1241 virtio_ccw_set_guest_notifier(dev, n, !assigned, false); 1242 } 1243 irqroute_error: 1244 if (with_irqfd && assigned) { 1245 virtio_ccw_release_irqroutes(dev, nvqs); 1246 } 1247 return r; 1248 } 1249 1250 static void virtio_ccw_save_queue(DeviceState *d, int n, QEMUFile *f) 1251 { 1252 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1253 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1254 1255 qemu_put_be16(f, virtio_queue_vector(vdev, n)); 1256 } 1257 1258 static int virtio_ccw_load_queue(DeviceState *d, int n, QEMUFile *f) 1259 { 1260 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1261 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1262 uint16_t vector; 1263 1264 qemu_get_be16s(f, &vector); 1265 virtio_queue_set_vector(vdev, n , vector); 1266 1267 return 0; 1268 } 1269 1270 static void virtio_ccw_save_config(DeviceState *d, QEMUFile *f) 1271 { 1272 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1273 vmstate_save_state(f, &vmstate_virtio_ccw_dev, dev, NULL); 1274 } 1275 1276 static int virtio_ccw_load_config(DeviceState *d, QEMUFile *f) 1277 { 1278 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1279 return vmstate_load_state(f, &vmstate_virtio_ccw_dev, dev, 1); 1280 } 1281 1282 static void virtio_ccw_pre_plugged(DeviceState *d, Error **errp) 1283 { 1284 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1285 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1286 1287 if (dev->max_rev >= 1) { 1288 virtio_add_feature(&vdev->host_features, VIRTIO_F_VERSION_1); 1289 } 1290 } 1291 1292 /* This is called by virtio-bus just after the device is plugged. */ 1293 static void virtio_ccw_device_plugged(DeviceState *d, Error **errp) 1294 { 1295 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1296 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1297 CcwDevice *ccw_dev = CCW_DEVICE(d); 1298 SubchDev *sch = ccw_dev->sch; 1299 int n = virtio_get_num_queues(vdev); 1300 S390FLICState *flic = s390_get_flic(); 1301 1302 if (!virtio_has_feature(vdev->host_features, VIRTIO_F_VERSION_1)) { 1303 dev->max_rev = 0; 1304 } 1305 1306 if (virtio_get_num_queues(vdev) > VIRTIO_QUEUE_MAX) { 1307 error_setg(errp, "The number of virtqueues %d " 1308 "exceeds virtio limit %d", n, 1309 VIRTIO_QUEUE_MAX); 1310 return; 1311 } 1312 if (virtio_get_num_queues(vdev) > flic->adapter_routes_max_batch) { 1313 error_setg(errp, "The number of virtqueues %d " 1314 "exceeds flic adapter route limit %d", n, 1315 flic->adapter_routes_max_batch); 1316 return; 1317 } 1318 1319 sch->id.cu_model = virtio_bus_get_vdev_id(&dev->bus); 1320 1321 1322 css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid, 1323 d->hotplugged, 1); 1324 } 1325 1326 static void virtio_ccw_device_unplugged(DeviceState *d) 1327 { 1328 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1329 1330 virtio_ccw_stop_ioeventfd(dev); 1331 } 1332 /**************** Virtio-ccw Bus Device Descriptions *******************/ 1333 1334 static Property virtio_ccw_net_properties[] = { 1335 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1336 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1337 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1338 VIRTIO_CCW_MAX_REV), 1339 DEFINE_PROP_END_OF_LIST(), 1340 }; 1341 1342 static void virtio_ccw_net_class_init(ObjectClass *klass, void *data) 1343 { 1344 DeviceClass *dc = DEVICE_CLASS(klass); 1345 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1346 1347 k->realize = virtio_ccw_net_realize; 1348 k->unrealize = virtio_ccw_unrealize; 1349 dc->props = virtio_ccw_net_properties; 1350 set_bit(DEVICE_CATEGORY_NETWORK, dc->categories); 1351 } 1352 1353 static const TypeInfo virtio_ccw_net = { 1354 .name = TYPE_VIRTIO_NET_CCW, 1355 .parent = TYPE_VIRTIO_CCW_DEVICE, 1356 .instance_size = sizeof(VirtIONetCcw), 1357 .instance_init = virtio_ccw_net_instance_init, 1358 .class_init = virtio_ccw_net_class_init, 1359 }; 1360 1361 static Property virtio_ccw_blk_properties[] = { 1362 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1363 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1364 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1365 VIRTIO_CCW_MAX_REV), 1366 DEFINE_PROP_END_OF_LIST(), 1367 }; 1368 1369 static void virtio_ccw_blk_class_init(ObjectClass *klass, void *data) 1370 { 1371 DeviceClass *dc = DEVICE_CLASS(klass); 1372 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1373 1374 k->realize = virtio_ccw_blk_realize; 1375 k->unrealize = virtio_ccw_unrealize; 1376 dc->props = virtio_ccw_blk_properties; 1377 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 1378 } 1379 1380 static const TypeInfo virtio_ccw_blk = { 1381 .name = TYPE_VIRTIO_BLK_CCW, 1382 .parent = TYPE_VIRTIO_CCW_DEVICE, 1383 .instance_size = sizeof(VirtIOBlkCcw), 1384 .instance_init = virtio_ccw_blk_instance_init, 1385 .class_init = virtio_ccw_blk_class_init, 1386 }; 1387 1388 static Property virtio_ccw_serial_properties[] = { 1389 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1390 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1391 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1392 VIRTIO_CCW_MAX_REV), 1393 DEFINE_PROP_END_OF_LIST(), 1394 }; 1395 1396 static void virtio_ccw_serial_class_init(ObjectClass *klass, void *data) 1397 { 1398 DeviceClass *dc = DEVICE_CLASS(klass); 1399 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1400 1401 k->realize = virtio_ccw_serial_realize; 1402 k->unrealize = virtio_ccw_unrealize; 1403 dc->props = virtio_ccw_serial_properties; 1404 set_bit(DEVICE_CATEGORY_INPUT, dc->categories); 1405 } 1406 1407 static const TypeInfo virtio_ccw_serial = { 1408 .name = TYPE_VIRTIO_SERIAL_CCW, 1409 .parent = TYPE_VIRTIO_CCW_DEVICE, 1410 .instance_size = sizeof(VirtioSerialCcw), 1411 .instance_init = virtio_ccw_serial_instance_init, 1412 .class_init = virtio_ccw_serial_class_init, 1413 }; 1414 1415 static Property virtio_ccw_balloon_properties[] = { 1416 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1417 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1418 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1419 VIRTIO_CCW_MAX_REV), 1420 DEFINE_PROP_END_OF_LIST(), 1421 }; 1422 1423 static void virtio_ccw_balloon_class_init(ObjectClass *klass, void *data) 1424 { 1425 DeviceClass *dc = DEVICE_CLASS(klass); 1426 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1427 1428 k->realize = virtio_ccw_balloon_realize; 1429 k->unrealize = virtio_ccw_unrealize; 1430 dc->props = virtio_ccw_balloon_properties; 1431 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 1432 } 1433 1434 static const TypeInfo virtio_ccw_balloon = { 1435 .name = TYPE_VIRTIO_BALLOON_CCW, 1436 .parent = TYPE_VIRTIO_CCW_DEVICE, 1437 .instance_size = sizeof(VirtIOBalloonCcw), 1438 .instance_init = virtio_ccw_balloon_instance_init, 1439 .class_init = virtio_ccw_balloon_class_init, 1440 }; 1441 1442 static Property virtio_ccw_scsi_properties[] = { 1443 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1444 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1445 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1446 VIRTIO_CCW_MAX_REV), 1447 DEFINE_PROP_END_OF_LIST(), 1448 }; 1449 1450 static void virtio_ccw_scsi_class_init(ObjectClass *klass, void *data) 1451 { 1452 DeviceClass *dc = DEVICE_CLASS(klass); 1453 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1454 1455 k->realize = virtio_ccw_scsi_realize; 1456 k->unrealize = virtio_ccw_unrealize; 1457 dc->props = virtio_ccw_scsi_properties; 1458 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 1459 } 1460 1461 static const TypeInfo virtio_ccw_scsi = { 1462 .name = TYPE_VIRTIO_SCSI_CCW, 1463 .parent = TYPE_VIRTIO_CCW_DEVICE, 1464 .instance_size = sizeof(VirtIOSCSICcw), 1465 .instance_init = virtio_ccw_scsi_instance_init, 1466 .class_init = virtio_ccw_scsi_class_init, 1467 }; 1468 1469 #ifdef CONFIG_VHOST_SCSI 1470 static Property vhost_ccw_scsi_properties[] = { 1471 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1472 VIRTIO_CCW_MAX_REV), 1473 DEFINE_PROP_END_OF_LIST(), 1474 }; 1475 1476 static void vhost_ccw_scsi_class_init(ObjectClass *klass, void *data) 1477 { 1478 DeviceClass *dc = DEVICE_CLASS(klass); 1479 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1480 1481 k->realize = vhost_ccw_scsi_realize; 1482 k->unrealize = virtio_ccw_unrealize; 1483 dc->props = vhost_ccw_scsi_properties; 1484 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 1485 } 1486 1487 static const TypeInfo vhost_ccw_scsi = { 1488 .name = TYPE_VHOST_SCSI_CCW, 1489 .parent = TYPE_VIRTIO_CCW_DEVICE, 1490 .instance_size = sizeof(VHostSCSICcw), 1491 .instance_init = vhost_ccw_scsi_instance_init, 1492 .class_init = vhost_ccw_scsi_class_init, 1493 }; 1494 #endif 1495 1496 static void virtio_ccw_rng_instance_init(Object *obj) 1497 { 1498 VirtIORNGCcw *dev = VIRTIO_RNG_CCW(obj); 1499 1500 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1501 TYPE_VIRTIO_RNG); 1502 } 1503 1504 static Property virtio_ccw_rng_properties[] = { 1505 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1506 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1507 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1508 VIRTIO_CCW_MAX_REV), 1509 DEFINE_PROP_END_OF_LIST(), 1510 }; 1511 1512 static void virtio_ccw_rng_class_init(ObjectClass *klass, void *data) 1513 { 1514 DeviceClass *dc = DEVICE_CLASS(klass); 1515 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1516 1517 k->realize = virtio_ccw_rng_realize; 1518 k->unrealize = virtio_ccw_unrealize; 1519 dc->props = virtio_ccw_rng_properties; 1520 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 1521 } 1522 1523 static const TypeInfo virtio_ccw_rng = { 1524 .name = TYPE_VIRTIO_RNG_CCW, 1525 .parent = TYPE_VIRTIO_CCW_DEVICE, 1526 .instance_size = sizeof(VirtIORNGCcw), 1527 .instance_init = virtio_ccw_rng_instance_init, 1528 .class_init = virtio_ccw_rng_class_init, 1529 }; 1530 1531 static Property virtio_ccw_crypto_properties[] = { 1532 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1533 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1534 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1535 VIRTIO_CCW_MAX_REV), 1536 DEFINE_PROP_END_OF_LIST(), 1537 }; 1538 1539 static void virtio_ccw_crypto_instance_init(Object *obj) 1540 { 1541 VirtIOCryptoCcw *dev = VIRTIO_CRYPTO_CCW(obj); 1542 VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj); 1543 1544 ccw_dev->force_revision_1 = true; 1545 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1546 TYPE_VIRTIO_CRYPTO); 1547 } 1548 1549 static void virtio_ccw_crypto_class_init(ObjectClass *klass, void *data) 1550 { 1551 DeviceClass *dc = DEVICE_CLASS(klass); 1552 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1553 1554 k->realize = virtio_ccw_crypto_realize; 1555 k->unrealize = virtio_ccw_unrealize; 1556 dc->props = virtio_ccw_crypto_properties; 1557 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 1558 } 1559 1560 static const TypeInfo virtio_ccw_crypto = { 1561 .name = TYPE_VIRTIO_CRYPTO_CCW, 1562 .parent = TYPE_VIRTIO_CCW_DEVICE, 1563 .instance_size = sizeof(VirtIOCryptoCcw), 1564 .instance_init = virtio_ccw_crypto_instance_init, 1565 .class_init = virtio_ccw_crypto_class_init, 1566 }; 1567 1568 static Property virtio_ccw_gpu_properties[] = { 1569 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1570 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1571 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1572 VIRTIO_CCW_MAX_REV), 1573 DEFINE_PROP_END_OF_LIST(), 1574 }; 1575 1576 static void virtio_ccw_gpu_instance_init(Object *obj) 1577 { 1578 VirtIOGPUCcw *dev = VIRTIO_GPU_CCW(obj); 1579 VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj); 1580 1581 ccw_dev->force_revision_1 = true; 1582 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1583 TYPE_VIRTIO_GPU); 1584 } 1585 1586 static void virtio_ccw_gpu_class_init(ObjectClass *klass, void *data) 1587 { 1588 DeviceClass *dc = DEVICE_CLASS(klass); 1589 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1590 1591 k->realize = virtio_ccw_gpu_realize; 1592 k->unrealize = virtio_ccw_unrealize; 1593 dc->props = virtio_ccw_gpu_properties; 1594 dc->hotpluggable = false; 1595 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories); 1596 } 1597 1598 static const TypeInfo virtio_ccw_gpu = { 1599 .name = TYPE_VIRTIO_GPU_CCW, 1600 .parent = TYPE_VIRTIO_CCW_DEVICE, 1601 .instance_size = sizeof(VirtIOGPUCcw), 1602 .instance_init = virtio_ccw_gpu_instance_init, 1603 .class_init = virtio_ccw_gpu_class_init, 1604 }; 1605 1606 static Property virtio_ccw_input_properties[] = { 1607 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1608 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1609 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1610 VIRTIO_CCW_MAX_REV), 1611 DEFINE_PROP_END_OF_LIST(), 1612 }; 1613 1614 static void virtio_ccw_input_class_init(ObjectClass *klass, void *data) 1615 { 1616 DeviceClass *dc = DEVICE_CLASS(klass); 1617 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1618 1619 k->realize = virtio_ccw_input_realize; 1620 k->unrealize = virtio_ccw_unrealize; 1621 dc->props = virtio_ccw_input_properties; 1622 set_bit(DEVICE_CATEGORY_INPUT, dc->categories); 1623 } 1624 1625 static void virtio_ccw_keyboard_instance_init(Object *obj) 1626 { 1627 VirtIOInputHIDCcw *dev = VIRTIO_INPUT_HID_CCW(obj); 1628 VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj); 1629 1630 ccw_dev->force_revision_1 = true; 1631 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1632 TYPE_VIRTIO_KEYBOARD); 1633 } 1634 1635 static void virtio_ccw_mouse_instance_init(Object *obj) 1636 { 1637 VirtIOInputHIDCcw *dev = VIRTIO_INPUT_HID_CCW(obj); 1638 VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj); 1639 1640 ccw_dev->force_revision_1 = true; 1641 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1642 TYPE_VIRTIO_MOUSE); 1643 } 1644 1645 static void virtio_ccw_tablet_instance_init(Object *obj) 1646 { 1647 VirtIOInputHIDCcw *dev = VIRTIO_INPUT_HID_CCW(obj); 1648 VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj); 1649 1650 ccw_dev->force_revision_1 = true; 1651 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1652 TYPE_VIRTIO_TABLET); 1653 } 1654 1655 static const TypeInfo virtio_ccw_input = { 1656 .name = TYPE_VIRTIO_INPUT_CCW, 1657 .parent = TYPE_VIRTIO_CCW_DEVICE, 1658 .instance_size = sizeof(VirtIOInputCcw), 1659 .class_init = virtio_ccw_input_class_init, 1660 .abstract = true, 1661 }; 1662 1663 static const TypeInfo virtio_ccw_input_hid = { 1664 .name = TYPE_VIRTIO_INPUT_HID_CCW, 1665 .parent = TYPE_VIRTIO_INPUT_CCW, 1666 .instance_size = sizeof(VirtIOInputHIDCcw), 1667 .abstract = true, 1668 }; 1669 1670 static const TypeInfo virtio_ccw_keyboard = { 1671 .name = TYPE_VIRTIO_KEYBOARD_CCW, 1672 .parent = TYPE_VIRTIO_INPUT_HID_CCW, 1673 .instance_size = sizeof(VirtIOInputHIDCcw), 1674 .instance_init = virtio_ccw_keyboard_instance_init, 1675 }; 1676 1677 static const TypeInfo virtio_ccw_mouse = { 1678 .name = TYPE_VIRTIO_MOUSE_CCW, 1679 .parent = TYPE_VIRTIO_INPUT_HID_CCW, 1680 .instance_size = sizeof(VirtIOInputHIDCcw), 1681 .instance_init = virtio_ccw_mouse_instance_init, 1682 }; 1683 1684 static const TypeInfo virtio_ccw_tablet = { 1685 .name = TYPE_VIRTIO_TABLET_CCW, 1686 .parent = TYPE_VIRTIO_INPUT_HID_CCW, 1687 .instance_size = sizeof(VirtIOInputHIDCcw), 1688 .instance_init = virtio_ccw_tablet_instance_init, 1689 }; 1690 1691 static void virtio_ccw_busdev_realize(DeviceState *dev, Error **errp) 1692 { 1693 VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev; 1694 1695 virtio_ccw_bus_new(&_dev->bus, sizeof(_dev->bus), _dev); 1696 virtio_ccw_device_realize(_dev, errp); 1697 } 1698 1699 static void virtio_ccw_busdev_unrealize(DeviceState *dev, Error **errp) 1700 { 1701 VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev; 1702 VirtIOCCWDeviceClass *_info = VIRTIO_CCW_DEVICE_GET_CLASS(dev); 1703 1704 _info->unrealize(_dev, errp); 1705 } 1706 1707 static void virtio_ccw_busdev_unplug(HotplugHandler *hotplug_dev, 1708 DeviceState *dev, Error **errp) 1709 { 1710 VirtioCcwDevice *_dev = to_virtio_ccw_dev_fast(dev); 1711 1712 virtio_ccw_stop_ioeventfd(_dev); 1713 } 1714 1715 static void virtio_ccw_device_class_init(ObjectClass *klass, void *data) 1716 { 1717 DeviceClass *dc = DEVICE_CLASS(klass); 1718 CCWDeviceClass *k = CCW_DEVICE_CLASS(dc); 1719 VirtIOCCWDeviceClass *vdc = VIRTIO_CCW_DEVICE_CLASS(klass); 1720 1721 k->unplug = virtio_ccw_busdev_unplug; 1722 dc->realize = virtio_ccw_busdev_realize; 1723 dc->unrealize = virtio_ccw_busdev_unrealize; 1724 dc->bus_type = TYPE_VIRTUAL_CSS_BUS; 1725 device_class_set_parent_reset(dc, virtio_ccw_reset, &vdc->parent_reset); 1726 } 1727 1728 static const TypeInfo virtio_ccw_device_info = { 1729 .name = TYPE_VIRTIO_CCW_DEVICE, 1730 .parent = TYPE_CCW_DEVICE, 1731 .instance_size = sizeof(VirtioCcwDevice), 1732 .class_init = virtio_ccw_device_class_init, 1733 .class_size = sizeof(VirtIOCCWDeviceClass), 1734 .abstract = true, 1735 }; 1736 1737 /* virtio-ccw-bus */ 1738 1739 static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size, 1740 VirtioCcwDevice *dev) 1741 { 1742 DeviceState *qdev = DEVICE(dev); 1743 char virtio_bus_name[] = "virtio-bus"; 1744 1745 qbus_create_inplace(bus, bus_size, TYPE_VIRTIO_CCW_BUS, 1746 qdev, virtio_bus_name); 1747 } 1748 1749 static void virtio_ccw_bus_class_init(ObjectClass *klass, void *data) 1750 { 1751 VirtioBusClass *k = VIRTIO_BUS_CLASS(klass); 1752 BusClass *bus_class = BUS_CLASS(klass); 1753 1754 bus_class->max_dev = 1; 1755 k->notify = virtio_ccw_notify; 1756 k->vmstate_change = virtio_ccw_vmstate_change; 1757 k->query_guest_notifiers = virtio_ccw_query_guest_notifiers; 1758 k->set_guest_notifiers = virtio_ccw_set_guest_notifiers; 1759 k->save_queue = virtio_ccw_save_queue; 1760 k->load_queue = virtio_ccw_load_queue; 1761 k->save_config = virtio_ccw_save_config; 1762 k->load_config = virtio_ccw_load_config; 1763 k->pre_plugged = virtio_ccw_pre_plugged; 1764 k->device_plugged = virtio_ccw_device_plugged; 1765 k->device_unplugged = virtio_ccw_device_unplugged; 1766 k->ioeventfd_enabled = virtio_ccw_ioeventfd_enabled; 1767 k->ioeventfd_assign = virtio_ccw_ioeventfd_assign; 1768 } 1769 1770 static const TypeInfo virtio_ccw_bus_info = { 1771 .name = TYPE_VIRTIO_CCW_BUS, 1772 .parent = TYPE_VIRTIO_BUS, 1773 .instance_size = sizeof(VirtioCcwBusState), 1774 .class_init = virtio_ccw_bus_class_init, 1775 }; 1776 1777 #ifdef CONFIG_VIRTFS 1778 static Property virtio_ccw_9p_properties[] = { 1779 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1780 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1781 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1782 VIRTIO_CCW_MAX_REV), 1783 DEFINE_PROP_END_OF_LIST(), 1784 }; 1785 1786 static void virtio_ccw_9p_realize(VirtioCcwDevice *ccw_dev, Error **errp) 1787 { 1788 V9fsCCWState *dev = VIRTIO_9P_CCW(ccw_dev); 1789 DeviceState *vdev = DEVICE(&dev->vdev); 1790 1791 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 1792 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 1793 } 1794 1795 static void virtio_ccw_9p_class_init(ObjectClass *klass, void *data) 1796 { 1797 DeviceClass *dc = DEVICE_CLASS(klass); 1798 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1799 1800 k->unrealize = virtio_ccw_unrealize; 1801 k->realize = virtio_ccw_9p_realize; 1802 dc->props = virtio_ccw_9p_properties; 1803 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 1804 } 1805 1806 static void virtio_ccw_9p_instance_init(Object *obj) 1807 { 1808 V9fsCCWState *dev = VIRTIO_9P_CCW(obj); 1809 1810 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1811 TYPE_VIRTIO_9P); 1812 } 1813 1814 static const TypeInfo virtio_ccw_9p_info = { 1815 .name = TYPE_VIRTIO_9P_CCW, 1816 .parent = TYPE_VIRTIO_CCW_DEVICE, 1817 .instance_size = sizeof(V9fsCCWState), 1818 .instance_init = virtio_ccw_9p_instance_init, 1819 .class_init = virtio_ccw_9p_class_init, 1820 }; 1821 #endif 1822 1823 #ifdef CONFIG_VHOST_VSOCK 1824 1825 static Property vhost_vsock_ccw_properties[] = { 1826 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 1827 VIRTIO_CCW_MAX_REV), 1828 DEFINE_PROP_END_OF_LIST(), 1829 }; 1830 1831 static void vhost_vsock_ccw_realize(VirtioCcwDevice *ccw_dev, Error **errp) 1832 { 1833 VHostVSockCCWState *dev = VHOST_VSOCK_CCW(ccw_dev); 1834 DeviceState *vdev = DEVICE(&dev->vdev); 1835 Error *err = NULL; 1836 1837 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 1838 object_property_set_bool(OBJECT(vdev), true, "realized", &err); 1839 error_propagate(errp, err); 1840 } 1841 1842 static void vhost_vsock_ccw_class_init(ObjectClass *klass, void *data) 1843 { 1844 DeviceClass *dc = DEVICE_CLASS(klass); 1845 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1846 1847 k->realize = vhost_vsock_ccw_realize; 1848 k->unrealize = virtio_ccw_unrealize; 1849 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 1850 dc->props = vhost_vsock_ccw_properties; 1851 } 1852 1853 static void vhost_vsock_ccw_instance_init(Object *obj) 1854 { 1855 VHostVSockCCWState *dev = VHOST_VSOCK_CCW(obj); 1856 1857 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1858 TYPE_VHOST_VSOCK); 1859 } 1860 1861 static const TypeInfo vhost_vsock_ccw_info = { 1862 .name = TYPE_VHOST_VSOCK_CCW, 1863 .parent = TYPE_VIRTIO_CCW_DEVICE, 1864 .instance_size = sizeof(VHostVSockCCWState), 1865 .instance_init = vhost_vsock_ccw_instance_init, 1866 .class_init = vhost_vsock_ccw_class_init, 1867 }; 1868 #endif 1869 1870 static void virtio_ccw_register(void) 1871 { 1872 type_register_static(&virtio_ccw_bus_info); 1873 type_register_static(&virtio_ccw_device_info); 1874 type_register_static(&virtio_ccw_serial); 1875 type_register_static(&virtio_ccw_blk); 1876 type_register_static(&virtio_ccw_net); 1877 type_register_static(&virtio_ccw_balloon); 1878 type_register_static(&virtio_ccw_scsi); 1879 #ifdef CONFIG_VHOST_SCSI 1880 type_register_static(&vhost_ccw_scsi); 1881 #endif 1882 type_register_static(&virtio_ccw_rng); 1883 #ifdef CONFIG_VIRTFS 1884 type_register_static(&virtio_ccw_9p_info); 1885 #endif 1886 #ifdef CONFIG_VHOST_VSOCK 1887 type_register_static(&vhost_vsock_ccw_info); 1888 #endif 1889 type_register_static(&virtio_ccw_crypto); 1890 type_register_static(&virtio_ccw_gpu); 1891 type_register_static(&virtio_ccw_input); 1892 type_register_static(&virtio_ccw_input_hid); 1893 type_register_static(&virtio_ccw_keyboard); 1894 type_register_static(&virtio_ccw_mouse); 1895 type_register_static(&virtio_ccw_tablet); 1896 } 1897 1898 type_init(virtio_ccw_register) 1899