1 /* 2 * virtio ccw target implementation 3 * 4 * Copyright 2012,2015 IBM Corp. 5 * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com> 6 * Pierre Morel <pmorel@linux.vnet.ibm.com> 7 * 8 * This work is licensed under the terms of the GNU GPL, version 2 or (at 9 * your option) any later version. See the COPYING file in the top-level 10 * directory. 11 */ 12 13 #include "qemu/osdep.h" 14 #include "qapi/error.h" 15 #include "hw/hw.h" 16 #include "sysemu/sysemu.h" 17 #include "sysemu/kvm.h" 18 #include "net/net.h" 19 #include "hw/virtio/virtio.h" 20 #include "hw/virtio/virtio-serial.h" 21 #include "hw/virtio/virtio-net.h" 22 #include "hw/sysbus.h" 23 #include "qemu/bitops.h" 24 #include "qemu/error-report.h" 25 #include "hw/virtio/virtio-access.h" 26 #include "hw/virtio/virtio-bus.h" 27 #include "hw/s390x/adapter.h" 28 #include "hw/s390x/s390_flic.h" 29 30 #include "hw/s390x/ioinst.h" 31 #include "hw/s390x/css.h" 32 #include "virtio-ccw.h" 33 #include "trace.h" 34 #include "hw/s390x/css-bridge.h" 35 #include "hw/s390x/s390-virtio-ccw.h" 36 37 #define NR_CLASSIC_INDICATOR_BITS 64 38 39 static int virtio_ccw_dev_post_load(void *opaque, int version_id) 40 { 41 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(opaque); 42 CcwDevice *ccw_dev = CCW_DEVICE(dev); 43 CCWDeviceClass *ck = CCW_DEVICE_GET_CLASS(ccw_dev); 44 45 ccw_dev->sch->driver_data = dev; 46 if (ccw_dev->sch->thinint_active) { 47 dev->routes.adapter.adapter_id = css_get_adapter_id( 48 CSS_IO_ADAPTER_VIRTIO, 49 dev->thinint_isc); 50 } 51 /* Re-fill subch_id after loading the subchannel states.*/ 52 if (ck->refill_ids) { 53 ck->refill_ids(ccw_dev); 54 } 55 return 0; 56 } 57 58 typedef struct VirtioCcwDeviceTmp { 59 VirtioCcwDevice *parent; 60 uint16_t config_vector; 61 } VirtioCcwDeviceTmp; 62 63 static int virtio_ccw_dev_tmp_pre_save(void *opaque) 64 { 65 VirtioCcwDeviceTmp *tmp = opaque; 66 VirtioCcwDevice *dev = tmp->parent; 67 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 68 69 tmp->config_vector = vdev->config_vector; 70 71 return 0; 72 } 73 74 static int virtio_ccw_dev_tmp_post_load(void *opaque, int version_id) 75 { 76 VirtioCcwDeviceTmp *tmp = opaque; 77 VirtioCcwDevice *dev = tmp->parent; 78 VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 79 80 vdev->config_vector = tmp->config_vector; 81 return 0; 82 } 83 84 const VMStateDescription vmstate_virtio_ccw_dev_tmp = { 85 .name = "s390_virtio_ccw_dev_tmp", 86 .pre_save = virtio_ccw_dev_tmp_pre_save, 87 .post_load = virtio_ccw_dev_tmp_post_load, 88 .fields = (VMStateField[]) { 89 VMSTATE_UINT16(config_vector, VirtioCcwDeviceTmp), 90 VMSTATE_END_OF_LIST() 91 } 92 }; 93 94 const VMStateDescription vmstate_virtio_ccw_dev = { 95 .name = "s390_virtio_ccw_dev", 96 .version_id = 1, 97 .minimum_version_id = 1, 98 .post_load = virtio_ccw_dev_post_load, 99 .fields = (VMStateField[]) { 100 VMSTATE_CCW_DEVICE(parent_obj, VirtioCcwDevice), 101 VMSTATE_PTR_TO_IND_ADDR(indicators, VirtioCcwDevice), 102 VMSTATE_PTR_TO_IND_ADDR(indicators2, VirtioCcwDevice), 103 VMSTATE_PTR_TO_IND_ADDR(summary_indicator, VirtioCcwDevice), 104 /* 105 * Ugly hack because VirtIODevice does not migrate itself. 106 * This also makes legacy via vmstate_save_state possible. 107 */ 108 VMSTATE_WITH_TMP(VirtioCcwDevice, VirtioCcwDeviceTmp, 109 vmstate_virtio_ccw_dev_tmp), 110 VMSTATE_STRUCT(routes, VirtioCcwDevice, 1, vmstate_adapter_routes, 111 AdapterRoutes), 112 VMSTATE_UINT8(thinint_isc, VirtioCcwDevice), 113 VMSTATE_INT32(revision, VirtioCcwDevice), 114 VMSTATE_END_OF_LIST() 115 } 116 }; 117 118 static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size, 119 VirtioCcwDevice *dev); 120 121 VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch) 122 { 123 VirtIODevice *vdev = NULL; 124 VirtioCcwDevice *dev = sch->driver_data; 125 126 if (dev) { 127 vdev = virtio_bus_get_device(&dev->bus); 128 } 129 return vdev; 130 } 131 132 static void virtio_ccw_start_ioeventfd(VirtioCcwDevice *dev) 133 { 134 virtio_bus_start_ioeventfd(&dev->bus); 135 } 136 137 static void virtio_ccw_stop_ioeventfd(VirtioCcwDevice *dev) 138 { 139 virtio_bus_stop_ioeventfd(&dev->bus); 140 } 141 142 static bool virtio_ccw_ioeventfd_enabled(DeviceState *d) 143 { 144 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 145 146 return (dev->flags & VIRTIO_CCW_FLAG_USE_IOEVENTFD) != 0; 147 } 148 149 static int virtio_ccw_ioeventfd_assign(DeviceState *d, EventNotifier *notifier, 150 int n, bool assign) 151 { 152 VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 153 CcwDevice *ccw_dev = CCW_DEVICE(dev); 154 SubchDev *sch = ccw_dev->sch; 155 uint32_t sch_id = (css_build_subchannel_id(sch) << 16) | sch->schid; 156 157 return s390_assign_subch_ioeventfd(notifier, sch_id, n, assign); 158 } 159 160 /* Communication blocks used by several channel commands. */ 161 typedef struct VqInfoBlockLegacy { 162 uint64_t queue; 163 uint32_t align; 164 uint16_t index; 165 uint16_t num; 166 } QEMU_PACKED VqInfoBlockLegacy; 167 168 typedef struct VqInfoBlock { 169 uint64_t desc; 170 uint32_t res0; 171 uint16_t index; 172 uint16_t num; 173 uint64_t avail; 174 uint64_t used; 175 } QEMU_PACKED VqInfoBlock; 176 177 typedef struct VqConfigBlock { 178 uint16_t index; 179 uint16_t num_max; 180 } QEMU_PACKED VqConfigBlock; 181 182 typedef struct VirtioFeatDesc { 183 uint32_t features; 184 uint8_t index; 185 } QEMU_PACKED VirtioFeatDesc; 186 187 typedef struct VirtioThinintInfo { 188 hwaddr summary_indicator; 189 hwaddr device_indicator; 190 uint64_t ind_bit; 191 uint8_t isc; 192 } QEMU_PACKED VirtioThinintInfo; 193 194 typedef struct VirtioRevInfo { 195 uint16_t revision; 196 uint16_t length; 197 uint8_t data[0]; 198 } QEMU_PACKED VirtioRevInfo; 199 200 /* Specify where the virtqueues for the subchannel are in guest memory. */ 201 static int virtio_ccw_set_vqs(SubchDev *sch, VqInfoBlock *info, 202 VqInfoBlockLegacy *linfo) 203 { 204 VirtIODevice *vdev = virtio_ccw_get_vdev(sch); 205 uint16_t index = info ? info->index : linfo->index; 206 uint16_t num = info ? info->num : linfo->num; 207 uint64_t desc = info ? info->desc : linfo->queue; 208 209 if (index >= VIRTIO_QUEUE_MAX) { 210 return -EINVAL; 211 } 212 213 /* Current code in virtio.c relies on 4K alignment. */ 214 if (linfo && desc && (linfo->align != 4096)) { 215 return -EINVAL; 216 } 217 218 if (!vdev) { 219 return -EINVAL; 220 } 221 222 if (info) { 223 virtio_queue_set_rings(vdev, index, desc, info->avail, info->used); 224 } else { 225 virtio_queue_set_addr(vdev, index, desc); 226 } 227 if (!desc) { 228 virtio_queue_set_vector(vdev, index, VIRTIO_NO_VECTOR); 229 } else { 230 if (info) { 231 /* virtio-1 allows changing the ring size. */ 232 if (virtio_queue_get_max_num(vdev, index) < num) { 233 /* Fail if we exceed the maximum number. */ 234 return -EINVAL; 235 } 236 virtio_queue_set_num(vdev, index, num); 237 } else if (virtio_queue_get_num(vdev, index) > num) { 238 /* Fail if we don't have a big enough queue. */ 239 return -EINVAL; 240 } 241 /* We ignore possible increased num for legacy for compatibility. */ 242 virtio_queue_set_vector(vdev, index, index); 243 } 244 /* tell notify handler in case of config change */ 245 vdev->config_vector = VIRTIO_QUEUE_MAX; 246 return 0; 247 } 248 249 static void virtio_ccw_reset_virtio(VirtioCcwDevice *dev, VirtIODevice *vdev) 250 { 251 CcwDevice *ccw_dev = CCW_DEVICE(dev); 252 253 virtio_ccw_stop_ioeventfd(dev); 254 virtio_reset(vdev); 255 if (dev->indicators) { 256 release_indicator(&dev->routes.adapter, dev->indicators); 257 dev->indicators = NULL; 258 } 259 if (dev->indicators2) { 260 release_indicator(&dev->routes.adapter, dev->indicators2); 261 dev->indicators2 = NULL; 262 } 263 if (dev->summary_indicator) { 264 release_indicator(&dev->routes.adapter, dev->summary_indicator); 265 dev->summary_indicator = NULL; 266 } 267 ccw_dev->sch->thinint_active = false; 268 } 269 270 static int virtio_ccw_handle_set_vq(SubchDev *sch, CCW1 ccw, bool check_len, 271 bool is_legacy) 272 { 273 int ret; 274 VqInfoBlock info; 275 VqInfoBlockLegacy linfo; 276 size_t info_len = is_legacy ? sizeof(linfo) : sizeof(info); 277 278 if (check_len) { 279 if (ccw.count != info_len) { 280 return -EINVAL; 281 } 282 } else if (ccw.count < info_len) { 283 /* Can't execute command. */ 284 return -EINVAL; 285 } 286 if (!ccw.cda) { 287 return -EFAULT; 288 } 289 if (is_legacy) { 290 ccw_dstream_read(&sch->cds, linfo); 291 be64_to_cpus(&linfo.queue); 292 be32_to_cpus(&linfo.align); 293 be16_to_cpus(&linfo.index); 294 be16_to_cpus(&linfo.num); 295 ret = virtio_ccw_set_vqs(sch, NULL, &linfo); 296 } else { 297 ccw_dstream_read(&sch->cds, info); 298 be64_to_cpus(&info.desc); 299 be16_to_cpus(&info.index); 300 be16_to_cpus(&info.num); 301 be64_to_cpus(&info.avail); 302 be64_to_cpus(&info.used); 303 ret = virtio_ccw_set_vqs(sch, &info, NULL); 304 } 305 sch->curr_status.scsw.count = 0; 306 return ret; 307 } 308 309 static int virtio_ccw_cb(SubchDev *sch, CCW1 ccw) 310 { 311 int ret; 312 VirtioRevInfo revinfo; 313 uint8_t status; 314 VirtioFeatDesc features; 315 hwaddr indicators; 316 VqConfigBlock vq_config; 317 VirtioCcwDevice *dev = sch->driver_data; 318 VirtIODevice *vdev = virtio_ccw_get_vdev(sch); 319 bool check_len; 320 int len; 321 VirtioThinintInfo thinint; 322 323 if (!dev) { 324 return -EINVAL; 325 } 326 327 trace_virtio_ccw_interpret_ccw(sch->cssid, sch->ssid, sch->schid, 328 ccw.cmd_code); 329 check_len = !((ccw.flags & CCW_FLAG_SLI) && !(ccw.flags & CCW_FLAG_DC)); 330 331 if (dev->force_revision_1 && dev->revision < 0 && 332 ccw.cmd_code != CCW_CMD_SET_VIRTIO_REV) { 333 /* 334 * virtio-1 drivers must start with negotiating to a revision >= 1, 335 * so post a command reject for all other commands 336 */ 337 return -ENOSYS; 338 } 339 340 /* Look at the command. */ 341 switch (ccw.cmd_code) { 342 case CCW_CMD_SET_VQ: 343 ret = virtio_ccw_handle_set_vq(sch, ccw, check_len, dev->revision < 1); 344 break; 345 case CCW_CMD_VDEV_RESET: 346 virtio_ccw_reset_virtio(dev, vdev); 347 ret = 0; 348 break; 349 case CCW_CMD_READ_FEAT: 350 if (check_len) { 351 if (ccw.count != sizeof(features)) { 352 ret = -EINVAL; 353 break; 354 } 355 } else if (ccw.count < sizeof(features)) { 356 /* Can't execute command. */ 357 ret = -EINVAL; 358 break; 359 } 360 if (!ccw.cda) { 361 ret = -EFAULT; 362 } else { 363 VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev); 364 365 ccw_dstream_advance(&sch->cds, sizeof(features.features)); 366 ccw_dstream_read(&sch->cds, features.index); 367 if (features.index == 0) { 368 if (dev->revision >= 1) { 369 /* Don't offer legacy features for modern devices. */ 370 features.features = (uint32_t) 371 (vdev->host_features & ~vdc->legacy_features); 372 } else { 373 features.features = (uint32_t)vdev->host_features; 374 } 375 } else if ((features.index == 1) && (dev->revision >= 1)) { 376 /* 377 * Only offer feature bits beyond 31 if the guest has 378 * negotiated at least revision 1. 379 */ 380 features.features = (uint32_t)(vdev->host_features >> 32); 381 } else { 382 /* Return zeroes if the guest supports more feature bits. */ 383 features.features = 0; 384 } 385 ccw_dstream_rewind(&sch->cds); 386 cpu_to_le32s(&features.features); 387 ccw_dstream_write(&sch->cds, features.features); 388 sch->curr_status.scsw.count = ccw.count - sizeof(features); 389 ret = 0; 390 } 391 break; 392 case CCW_CMD_WRITE_FEAT: 393 if (check_len) { 394 if (ccw.count != sizeof(features)) { 395 ret = -EINVAL; 396 break; 397 } 398 } else if (ccw.count < sizeof(features)) { 399 /* Can't execute command. */ 400 ret = -EINVAL; 401 break; 402 } 403 if (!ccw.cda) { 404 ret = -EFAULT; 405 } else { 406 ccw_dstream_read(&sch->cds, features); 407 le32_to_cpus(&features.features); 408 if (features.index == 0) { 409 virtio_set_features(vdev, 410 (vdev->guest_features & 0xffffffff00000000ULL) | 411 features.features); 412 } else if ((features.index == 1) && (dev->revision >= 1)) { 413 /* 414 * If the guest did not negotiate at least revision 1, 415 * we did not offer it any feature bits beyond 31. Such a 416 * guest passing us any bit here is therefore buggy. 417 */ 418 virtio_set_features(vdev, 419 (vdev->guest_features & 0x00000000ffffffffULL) | 420 ((uint64_t)features.features << 32)); 421 } else { 422 /* 423 * If the guest supports more feature bits, assert that it 424 * passes us zeroes for those we don't support. 425 */ 426 if (features.features) { 427 qemu_log_mask(LOG_GUEST_ERROR, 428 "Guest bug: features[%i]=%x (expected 0)", 429 features.index, features.features); 430 /* XXX: do a unit check here? */ 431 } 432 } 433 sch->curr_status.scsw.count = ccw.count - sizeof(features); 434 ret = 0; 435 } 436 break; 437 case CCW_CMD_READ_CONF: 438 if (check_len) { 439 if (ccw.count > vdev->config_len) { 440 ret = -EINVAL; 441 break; 442 } 443 } 444 len = MIN(ccw.count, vdev->config_len); 445 if (!ccw.cda) { 446 ret = -EFAULT; 447 } else { 448 virtio_bus_get_vdev_config(&dev->bus, vdev->config); 449 ccw_dstream_write_buf(&sch->cds, vdev->config, len); 450 sch->curr_status.scsw.count = ccw.count - len; 451 ret = 0; 452 } 453 break; 454 case CCW_CMD_WRITE_CONF: 455 if (check_len) { 456 if (ccw.count > vdev->config_len) { 457 ret = -EINVAL; 458 break; 459 } 460 } 461 len = MIN(ccw.count, vdev->config_len); 462 if (!ccw.cda) { 463 ret = -EFAULT; 464 } else { 465 ret = ccw_dstream_read_buf(&sch->cds, vdev->config, len); 466 if (!ret) { 467 virtio_bus_set_vdev_config(&dev->bus, vdev->config); 468 sch->curr_status.scsw.count = ccw.count - len; 469 } 470 } 471 break; 472 case CCW_CMD_READ_STATUS: 473 if (check_len) { 474 if (ccw.count != sizeof(status)) { 475 ret = -EINVAL; 476 break; 477 } 478 } else if (ccw.count < sizeof(status)) { 479 /* Can't execute command. */ 480 ret = -EINVAL; 481 break; 482 } 483 if (!ccw.cda) { 484 ret = -EFAULT; 485 } else { 486 address_space_stb(&address_space_memory, ccw.cda, vdev->status, 487 MEMTXATTRS_UNSPECIFIED, NULL); 488 sch->curr_status.scsw.count = ccw.count - sizeof(vdev->status); 489 ret = 0; 490 } 491 break; 492 case CCW_CMD_WRITE_STATUS: 493 if (check_len) { 494 if (ccw.count != sizeof(status)) { 495 ret = -EINVAL; 496 break; 497 } 498 } else if (ccw.count < sizeof(status)) { 499 /* Can't execute command. */ 500 ret = -EINVAL; 501 break; 502 } 503 if (!ccw.cda) { 504 ret = -EFAULT; 505 } else { 506 ccw_dstream_read(&sch->cds, status); 507 if (!(status & VIRTIO_CONFIG_S_DRIVER_OK)) { 508 virtio_ccw_stop_ioeventfd(dev); 509 } 510 if (virtio_set_status(vdev, status) == 0) { 511 if (vdev->status == 0) { 512 virtio_ccw_reset_virtio(dev, vdev); 513 } 514 if (status & VIRTIO_CONFIG_S_DRIVER_OK) { 515 virtio_ccw_start_ioeventfd(dev); 516 } 517 sch->curr_status.scsw.count = ccw.count - sizeof(status); 518 ret = 0; 519 } else { 520 /* Trigger a command reject. */ 521 ret = -ENOSYS; 522 } 523 } 524 break; 525 case CCW_CMD_SET_IND: 526 if (check_len) { 527 if (ccw.count != sizeof(indicators)) { 528 ret = -EINVAL; 529 break; 530 } 531 } else if (ccw.count < sizeof(indicators)) { 532 /* Can't execute command. */ 533 ret = -EINVAL; 534 break; 535 } 536 if (sch->thinint_active) { 537 /* Trigger a command reject. */ 538 ret = -ENOSYS; 539 break; 540 } 541 if (virtio_get_num_queues(vdev) > NR_CLASSIC_INDICATOR_BITS) { 542 /* More queues than indicator bits --> trigger a reject */ 543 ret = -ENOSYS; 544 break; 545 } 546 if (!ccw.cda) { 547 ret = -EFAULT; 548 } else { 549 ccw_dstream_read(&sch->cds, indicators); 550 be64_to_cpus(&indicators); 551 dev->indicators = get_indicator(indicators, sizeof(uint64_t)); 552 sch->curr_status.scsw.count = ccw.count - sizeof(indicators); 553 ret = 0; 554 } 555 break; 556 case CCW_CMD_SET_CONF_IND: 557 if (check_len) { 558 if (ccw.count != sizeof(indicators)) { 559 ret = -EINVAL; 560 break; 561 } 562 } else if (ccw.count < sizeof(indicators)) { 563 /* Can't execute command. */ 564 ret = -EINVAL; 565 break; 566 } 567 if (!ccw.cda) { 568 ret = -EFAULT; 569 } else { 570 ccw_dstream_read(&sch->cds, indicators); 571 be64_to_cpus(&indicators); 572 dev->indicators2 = get_indicator(indicators, sizeof(uint64_t)); 573 sch->curr_status.scsw.count = ccw.count - sizeof(indicators); 574 ret = 0; 575 } 576 break; 577 case CCW_CMD_READ_VQ_CONF: 578 if (check_len) { 579 if (ccw.count != sizeof(vq_config)) { 580 ret = -EINVAL; 581 break; 582 } 583 } else if (ccw.count < sizeof(vq_config)) { 584 /* Can't execute command. */ 585 ret = -EINVAL; 586 break; 587 } 588 if (!ccw.cda) { 589 ret = -EFAULT; 590 } else { 591 ccw_dstream_read(&sch->cds, vq_config.index); 592 be16_to_cpus(&vq_config.index); 593 if (vq_config.index >= VIRTIO_QUEUE_MAX) { 594 ret = -EINVAL; 595 break; 596 } 597 vq_config.num_max = virtio_queue_get_num(vdev, 598 vq_config.index); 599 cpu_to_be16s(&vq_config.num_max); 600 ccw_dstream_write(&sch->cds, vq_config.num_max); 601 sch->curr_status.scsw.count = ccw.count - sizeof(vq_config); 602 ret = 0; 603 } 604 break; 605 case CCW_CMD_SET_IND_ADAPTER: 606 if (check_len) { 607 if (ccw.count != sizeof(thinint)) { 608 ret = -EINVAL; 609 break; 610 } 611 } else if (ccw.count < sizeof(thinint)) { 612 /* Can't execute command. */ 613 ret = -EINVAL; 614 break; 615 } 616 if (!ccw.cda) { 617 ret = -EFAULT; 618 } else if (dev->indicators && !sch->thinint_active) { 619 /* Trigger a command reject. */ 620 ret = -ENOSYS; 621 } else { 622 if (ccw_dstream_read(&sch->cds, thinint)) { 623 ret = -EFAULT; 624 } else { 625 be64_to_cpus(&thinint.ind_bit); 626 be64_to_cpus(&thinint.summary_indicator); 627 be64_to_cpus(&thinint.device_indicator); 628 629 dev->summary_indicator = 630 get_indicator(thinint.summary_indicator, sizeof(uint8_t)); 631 dev->indicators = 632 get_indicator(thinint.device_indicator, 633 thinint.ind_bit / 8 + 1); 634 dev->thinint_isc = thinint.isc; 635 dev->routes.adapter.ind_offset = thinint.ind_bit; 636 dev->routes.adapter.summary_offset = 7; 637 dev->routes.adapter.adapter_id = css_get_adapter_id( 638 CSS_IO_ADAPTER_VIRTIO, 639 dev->thinint_isc); 640 sch->thinint_active = ((dev->indicators != NULL) && 641 (dev->summary_indicator != NULL)); 642 sch->curr_status.scsw.count = ccw.count - sizeof(thinint); 643 ret = 0; 644 } 645 } 646 break; 647 case CCW_CMD_SET_VIRTIO_REV: 648 len = sizeof(revinfo); 649 if (ccw.count < len) { 650 ret = -EINVAL; 651 break; 652 } 653 if (!ccw.cda) { 654 ret = -EFAULT; 655 break; 656 } 657 ccw_dstream_read_buf(&sch->cds, &revinfo, 4); 658 be16_to_cpus(&revinfo.revision); 659 be16_to_cpus(&revinfo.length); 660 if (ccw.count < len + revinfo.length || 661 (check_len && ccw.count > len + revinfo.length)) { 662 ret = -EINVAL; 663 break; 664 } 665 /* 666 * Once we start to support revisions with additional data, we'll 667 * need to fetch it here. Nothing to do for now, though. 668 */ 669 if (dev->revision >= 0 || 670 revinfo.revision > virtio_ccw_rev_max(dev) || 671 (dev->force_revision_1 && !revinfo.revision)) { 672 ret = -ENOSYS; 673 break; 674 } 675 ret = 0; 676 dev->revision = revinfo.revision; 677 break; 678 default: 679 ret = -ENOSYS; 680 break; 681 } 682 return ret; 683 } 684 685 static void virtio_sch_disable_cb(SubchDev *sch) 686 { 687 VirtioCcwDevice *dev = sch->driver_data; 688 689 dev->revision = -1; 690 } 691 692 static void virtio_ccw_device_realize(VirtioCcwDevice *dev, Error **errp) 693 { 694 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_GET_CLASS(dev); 695 CcwDevice *ccw_dev = CCW_DEVICE(dev); 696 CCWDeviceClass *ck = CCW_DEVICE_GET_CLASS(ccw_dev); 697 SubchDev *sch; 698 Error *err = NULL; 699 700 sch = css_create_sch(ccw_dev->devno, errp); 701 if (!sch) { 702 return; 703 } 704 if (!virtio_ccw_rev_max(dev) && dev->force_revision_1) { 705 error_setg(&err, "Invalid value of property max_rev " 706 "(is %d expected >= 1)", virtio_ccw_rev_max(dev)); 707 goto out_err; 708 } 709 710 sch->driver_data = dev; 711 sch->ccw_cb = virtio_ccw_cb; 712 sch->disable_cb = virtio_sch_disable_cb; 713 sch->id.reserved = 0xff; 714 sch->id.cu_type = VIRTIO_CCW_CU_TYPE; 715 sch->do_subchannel_work = do_subchannel_work_virtual; 716 ccw_dev->sch = sch; 717 dev->indicators = NULL; 718 dev->revision = -1; 719 css_sch_build_virtual_schib(sch, 0, VIRTIO_CCW_CHPID_TYPE); 720 721 trace_virtio_ccw_new_device( 722 sch->cssid, sch->ssid, sch->schid, sch->devno, 723 ccw_dev->devno.valid ? "user-configured" : "auto-configured"); 724 725 if (kvm_enabled() && !kvm_eventfds_enabled()) { 726 dev->flags &= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD; 727 } 728 729 if (k->realize) { 730 k->realize(dev, &err); 731 if (err) { 732 goto out_err; 733 } 734 } 735 736 ck->realize(ccw_dev, &err); 737 if (err) { 738 goto out_err; 739 } 740 741 return; 742 743 out_err: 744 error_propagate(errp, err); 745 css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL); 746 ccw_dev->sch = NULL; 747 g_free(sch); 748 } 749 750 static void virtio_ccw_unrealize(VirtioCcwDevice *dev, Error **errp) 751 { 752 CcwDevice *ccw_dev = CCW_DEVICE(dev); 753 SubchDev *sch = ccw_dev->sch; 754 755 if (sch) { 756 css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL); 757 g_free(sch); 758 ccw_dev->sch = NULL; 759 } 760 if (dev->indicators) { 761 release_indicator(&dev->routes.adapter, dev->indicators); 762 dev->indicators = NULL; 763 } 764 } 765 766 static void virtio_ccw_net_realize(VirtioCcwDevice *ccw_dev, Error **errp) 767 { 768 DeviceState *qdev = DEVICE(ccw_dev); 769 VirtIONetCcw *dev = VIRTIO_NET_CCW(ccw_dev); 770 DeviceState *vdev = DEVICE(&dev->vdev); 771 772 virtio_net_set_netclient_name(&dev->vdev, qdev->id, 773 object_get_typename(OBJECT(qdev))); 774 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 775 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 776 } 777 778 static void virtio_ccw_net_instance_init(Object *obj) 779 { 780 VirtIONetCcw *dev = VIRTIO_NET_CCW(obj); 781 782 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 783 TYPE_VIRTIO_NET); 784 object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), 785 "bootindex", &error_abort); 786 } 787 788 static void virtio_ccw_blk_realize(VirtioCcwDevice *ccw_dev, Error **errp) 789 { 790 VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(ccw_dev); 791 DeviceState *vdev = DEVICE(&dev->vdev); 792 793 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 794 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 795 } 796 797 static void virtio_ccw_blk_instance_init(Object *obj) 798 { 799 VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(obj); 800 801 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 802 TYPE_VIRTIO_BLK); 803 object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), 804 "bootindex", &error_abort); 805 } 806 807 static void virtio_ccw_serial_realize(VirtioCcwDevice *ccw_dev, Error **errp) 808 { 809 VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(ccw_dev); 810 DeviceState *vdev = DEVICE(&dev->vdev); 811 DeviceState *proxy = DEVICE(ccw_dev); 812 char *bus_name; 813 814 /* 815 * For command line compatibility, this sets the virtio-serial-device bus 816 * name as before. 817 */ 818 if (proxy->id) { 819 bus_name = g_strdup_printf("%s.0", proxy->id); 820 virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); 821 g_free(bus_name); 822 } 823 824 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 825 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 826 } 827 828 829 static void virtio_ccw_serial_instance_init(Object *obj) 830 { 831 VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(obj); 832 833 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 834 TYPE_VIRTIO_SERIAL); 835 } 836 837 static void virtio_ccw_balloon_realize(VirtioCcwDevice *ccw_dev, Error **errp) 838 { 839 VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(ccw_dev); 840 DeviceState *vdev = DEVICE(&dev->vdev); 841 842 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 843 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 844 } 845 846 static void virtio_ccw_balloon_instance_init(Object *obj) 847 { 848 VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(obj); 849 850 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 851 TYPE_VIRTIO_BALLOON); 852 object_property_add_alias(obj, "guest-stats", OBJECT(&dev->vdev), 853 "guest-stats", &error_abort); 854 object_property_add_alias(obj, "guest-stats-polling-interval", 855 OBJECT(&dev->vdev), 856 "guest-stats-polling-interval", &error_abort); 857 } 858 859 static void virtio_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp) 860 { 861 VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(ccw_dev); 862 DeviceState *vdev = DEVICE(&dev->vdev); 863 DeviceState *qdev = DEVICE(ccw_dev); 864 char *bus_name; 865 866 /* 867 * For command line compatibility, this sets the virtio-scsi-device bus 868 * name as before. 869 */ 870 if (qdev->id) { 871 bus_name = g_strdup_printf("%s.0", qdev->id); 872 virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); 873 g_free(bus_name); 874 } 875 876 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 877 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 878 } 879 880 static void virtio_ccw_scsi_instance_init(Object *obj) 881 { 882 VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(obj); 883 884 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 885 TYPE_VIRTIO_SCSI); 886 } 887 888 #ifdef CONFIG_VHOST_SCSI 889 static void vhost_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp) 890 { 891 VHostSCSICcw *dev = VHOST_SCSI_CCW(ccw_dev); 892 DeviceState *vdev = DEVICE(&dev->vdev); 893 894 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 895 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 896 } 897 898 static void vhost_ccw_scsi_instance_init(Object *obj) 899 { 900 VHostSCSICcw *dev = VHOST_SCSI_CCW(obj); 901 902 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 903 TYPE_VHOST_SCSI); 904 } 905 #endif 906 907 static void virtio_ccw_rng_realize(VirtioCcwDevice *ccw_dev, Error **errp) 908 { 909 VirtIORNGCcw *dev = VIRTIO_RNG_CCW(ccw_dev); 910 DeviceState *vdev = DEVICE(&dev->vdev); 911 Error *err = NULL; 912 913 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 914 object_property_set_bool(OBJECT(vdev), true, "realized", &err); 915 if (err) { 916 error_propagate(errp, err); 917 return; 918 } 919 920 object_property_set_link(OBJECT(dev), 921 OBJECT(dev->vdev.conf.rng), "rng", 922 NULL); 923 } 924 925 static void virtio_ccw_crypto_realize(VirtioCcwDevice *ccw_dev, Error **errp) 926 { 927 VirtIOCryptoCcw *dev = VIRTIO_CRYPTO_CCW(ccw_dev); 928 DeviceState *vdev = DEVICE(&dev->vdev); 929 Error *err = NULL; 930 931 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 932 object_property_set_bool(OBJECT(vdev), true, "realized", &err); 933 if (err) { 934 error_propagate(errp, err); 935 return; 936 } 937 938 object_property_set_link(OBJECT(vdev), 939 OBJECT(dev->vdev.conf.cryptodev), "cryptodev", 940 NULL); 941 } 942 943 static void virtio_ccw_gpu_realize(VirtioCcwDevice *ccw_dev, Error **errp) 944 { 945 VirtIOGPUCcw *dev = VIRTIO_GPU_CCW(ccw_dev); 946 DeviceState *vdev = DEVICE(&dev->vdev); 947 948 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 949 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 950 } 951 952 static void virtio_ccw_input_realize(VirtioCcwDevice *ccw_dev, Error **errp) 953 { 954 VirtIOInputCcw *dev = VIRTIO_INPUT_CCW(ccw_dev); 955 DeviceState *vdev = DEVICE(&dev->vdev); 956 957 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 958 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 959 } 960 961 /* DeviceState to VirtioCcwDevice. Note: used on datapath, 962 * be careful and test performance if you change this. 963 */ 964 static inline VirtioCcwDevice *to_virtio_ccw_dev_fast(DeviceState *d) 965 { 966 CcwDevice *ccw_dev = to_ccw_dev_fast(d); 967 968 return container_of(ccw_dev, VirtioCcwDevice, parent_obj); 969 } 970 971 static uint8_t virtio_set_ind_atomic(SubchDev *sch, uint64_t ind_loc, 972 uint8_t to_be_set) 973 { 974 uint8_t ind_old, ind_new; 975 hwaddr len = 1; 976 uint8_t *ind_addr; 977 978 ind_addr = cpu_physical_memory_map(ind_loc, &len, 1); 979 if (!ind_addr) { 980 error_report("%s(%x.%x.%04x): unable to access indicator", 981 __func__, sch->cssid, sch->ssid, sch->schid); 982 return -1; 983 } 984 do { 985 ind_old = *ind_addr; 986 ind_new = ind_old | to_be_set; 987 } while (atomic_cmpxchg(ind_addr, ind_old, ind_new) != ind_old); 988 trace_virtio_ccw_set_ind(ind_loc, ind_old, ind_new); 989 cpu_physical_memory_unmap(ind_addr, len, 1, len); 990 991 return ind_old; 992 } 993 994 static void virtio_ccw_notify(DeviceState *d, uint16_t vector) 995 { 996 VirtioCcwDevice *dev = to_virtio_ccw_dev_fast(d); 997 CcwDevice *ccw_dev = to_ccw_dev_fast(d); 998 SubchDev *sch = ccw_dev->sch; 999 uint64_t indicators; 1000 1001 if (vector == VIRTIO_NO_VECTOR) { 1002 return; 1003 } 1004 /* 1005 * vector < VIRTIO_QUEUE_MAX: notification for a virtqueue 1006 * vector == VIRTIO_QUEUE_MAX: configuration change notification 1007 * bits beyond that are unused and should never be notified for 1008 */ 1009 assert(vector <= VIRTIO_QUEUE_MAX); 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 assert(vector < NR_CLASSIC_INDICATOR_BITS); 1033 indicators = address_space_ldq(&address_space_memory, 1034 dev->indicators->addr, 1035 MEMTXATTRS_UNSPECIFIED, 1036 NULL); 1037 indicators |= 1ULL << vector; 1038 address_space_stq(&address_space_memory, dev->indicators->addr, 1039 indicators, MEMTXATTRS_UNSPECIFIED, NULL); 1040 css_conditional_io_interrupt(sch); 1041 } 1042 } else { 1043 if (!dev->indicators2) { 1044 return; 1045 } 1046 indicators = address_space_ldq(&address_space_memory, 1047 dev->indicators2->addr, 1048 MEMTXATTRS_UNSPECIFIED, 1049 NULL); 1050 indicators |= 1ULL; 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 1837 qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 1838 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 1839 } 1840 1841 static void vhost_vsock_ccw_class_init(ObjectClass *klass, void *data) 1842 { 1843 DeviceClass *dc = DEVICE_CLASS(klass); 1844 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1845 1846 k->realize = vhost_vsock_ccw_realize; 1847 k->unrealize = virtio_ccw_unrealize; 1848 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 1849 dc->props = vhost_vsock_ccw_properties; 1850 } 1851 1852 static void vhost_vsock_ccw_instance_init(Object *obj) 1853 { 1854 VHostVSockCCWState *dev = VHOST_VSOCK_CCW(obj); 1855 1856 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1857 TYPE_VHOST_VSOCK); 1858 } 1859 1860 static const TypeInfo vhost_vsock_ccw_info = { 1861 .name = TYPE_VHOST_VSOCK_CCW, 1862 .parent = TYPE_VIRTIO_CCW_DEVICE, 1863 .instance_size = sizeof(VHostVSockCCWState), 1864 .instance_init = vhost_vsock_ccw_instance_init, 1865 .class_init = vhost_vsock_ccw_class_init, 1866 }; 1867 #endif 1868 1869 static void virtio_ccw_register(void) 1870 { 1871 type_register_static(&virtio_ccw_bus_info); 1872 type_register_static(&virtio_ccw_device_info); 1873 type_register_static(&virtio_ccw_serial); 1874 type_register_static(&virtio_ccw_blk); 1875 type_register_static(&virtio_ccw_net); 1876 type_register_static(&virtio_ccw_balloon); 1877 type_register_static(&virtio_ccw_scsi); 1878 #ifdef CONFIG_VHOST_SCSI 1879 type_register_static(&vhost_ccw_scsi); 1880 #endif 1881 type_register_static(&virtio_ccw_rng); 1882 #ifdef CONFIG_VIRTFS 1883 type_register_static(&virtio_ccw_9p_info); 1884 #endif 1885 #ifdef CONFIG_VHOST_VSOCK 1886 type_register_static(&vhost_vsock_ccw_info); 1887 #endif 1888 type_register_static(&virtio_ccw_crypto); 1889 type_register_static(&virtio_ccw_gpu); 1890 type_register_static(&virtio_ccw_input); 1891 type_register_static(&virtio_ccw_input_hid); 1892 type_register_static(&virtio_ccw_keyboard); 1893 type_register_static(&virtio_ccw_mouse); 1894 type_register_static(&virtio_ccw_tablet); 1895 } 1896 1897 type_init(virtio_ccw_register) 1898