hw/s390x/virtio-ccw.c

   1 /*
   2  * virtio ccw target implementation
   3  *
   4  * Copyright 2012,2015 IBM Corp.
   5  * Author(s): Cornelia Huck <[email protected]>
   6  *            Pierre Morel <[email protected]>
   7  *
   8  * This work is licensed under the terms of the GNU GPL, version 2 or (at
   9  * your option) any later version. See the COPYING file in the top-level
  10  * directory.
  11  */
  12
  13 #include "qemu/osdep.h"
  14 #include "qapi/error.h"
  15 #include "hw/hw.h"
  16 #include "sysemu/block-backend.h"
  17 #include "sysemu/blockdev.h"
  18 #include "sysemu/sysemu.h"
  19 #include "sysemu/kvm.h"
  20 #include "net/net.h"
  21 #include "hw/virtio/virtio.h"
  22 #include "hw/virtio/virtio-serial.h"
  23 #include "hw/virtio/virtio-net.h"
  24 #include "hw/sysbus.h"
  25 #include "qemu/bitops.h"
  26 #include "qemu/error-report.h"
  27 #include "hw/virtio/virtio-access.h"
  28 #include "hw/virtio/virtio-bus.h"
  29 #include "hw/s390x/adapter.h"
  30 #include "hw/s390x/s390_flic.h"
  31
  32 #include "hw/s390x/ioinst.h"
  33 #include "hw/s390x/css.h"
  34 #include "virtio-ccw.h"
  35 #include "trace.h"
  36 #include "hw/s390x/css-bridge.h"
  37
  38 static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size,
  39                                VirtioCcwDevice *dev);
  40
  41 VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch)
  42 {
  43     VirtIODevice *vdev = NULL;
  44     VirtioCcwDevice *dev = sch->driver_data;
  45
  46     if (dev) {
  47         vdev = virtio_bus_get_device(&dev->bus);
  48     }
  49     return vdev;
  50 }
  51
  52 static void virtio_ccw_start_ioeventfd(VirtioCcwDevice *dev)
  53 {
  54     virtio_bus_start_ioeventfd(&dev->bus);
  55 }
  56
  57 static void virtio_ccw_stop_ioeventfd(VirtioCcwDevice *dev)
  58 {
  59     virtio_bus_stop_ioeventfd(&dev->bus);
  60 }
  61
  62 static bool virtio_ccw_ioeventfd_started(DeviceState *d)
  63 {
  64     VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
  65
  66     return dev->ioeventfd_started;
  67 }
  68
  69 static void virtio_ccw_ioeventfd_set_started(DeviceState *d, bool started,
  70                                              bool err)
  71 {
  72     VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
  73
  74     dev->ioeventfd_started = started;
  75     if (err) {
  76         /* Disable ioeventfd for this device. */
  77         dev->flags &= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD;
  78     }
  79 }
  80
  81 static bool virtio_ccw_ioeventfd_disabled(DeviceState *d)
  82 {
  83     VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
  84
  85     return dev->ioeventfd_disabled ||
  86         !(dev->flags & VIRTIO_CCW_FLAG_USE_IOEVENTFD);
  87 }
  88
  89 static void virtio_ccw_ioeventfd_set_disabled(DeviceState *d, bool disabled)
  90 {
  91     VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
  92
  93     dev->ioeventfd_disabled = disabled;
  94 }
  95
  96 static int virtio_ccw_ioeventfd_assign(DeviceState *d, EventNotifier *notifier,
  97                                        int n, bool assign)
  98 {
  99     VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
 100     CcwDevice *ccw_dev = CCW_DEVICE(dev);
 101     SubchDev *sch = ccw_dev->sch;
 102     uint32_t sch_id = (css_build_subchannel_id(sch) << 16) | sch->schid;
 103
 104     return s390_assign_subch_ioeventfd(notifier, sch_id, n, assign);
 105 }
 106
 107 /* Communication blocks used by several channel commands. */
 108 typedef struct VqInfoBlockLegacy {
 109     uint64_t queue;
 110     uint32_t align;
 111     uint16_t index;
 112     uint16_t num;
 113 } QEMU_PACKED VqInfoBlockLegacy;
 114
 115 typedef struct VqInfoBlock {
 116     uint64_t desc;
 117     uint32_t res0;
 118     uint16_t index;
 119     uint16_t num;
 120     uint64_t avail;
 121     uint64_t used;
 122 } QEMU_PACKED VqInfoBlock;
 123
 124 typedef struct VqConfigBlock {
 125     uint16_t index;
 126     uint16_t num_max;
 127 } QEMU_PACKED VqConfigBlock;
 128
 129 typedef struct VirtioFeatDesc {
 130     uint32_t features;
 131     uint8_t index;
 132 } QEMU_PACKED VirtioFeatDesc;
 133
 134 typedef struct VirtioThinintInfo {
 135     hwaddr summary_indicator;
 136     hwaddr device_indicator;
 137     uint64_t ind_bit;
 138     uint8_t isc;
 139 } QEMU_PACKED VirtioThinintInfo;
 140
 141 typedef struct VirtioRevInfo {
 142     uint16_t revision;
 143     uint16_t length;
 144     uint8_t data[0];
 145 } QEMU_PACKED VirtioRevInfo;
 146
 147 /* Specify where the virtqueues for the subchannel are in guest memory. */
 148 static int virtio_ccw_set_vqs(SubchDev *sch, VqInfoBlock *info,
 149                               VqInfoBlockLegacy *linfo)
 150 {
 151     VirtIODevice *vdev = virtio_ccw_get_vdev(sch);
 152     uint16_t index = info ? info->index : linfo->index;
 153     uint16_t num = info ? info->num : linfo->num;
 154     uint64_t desc = info ? info->desc : linfo->queue;
 155
 156     if (index >= VIRTIO_CCW_QUEUE_MAX) {
 157         return -EINVAL;
 158     }
 159
 160     /* Current code in virtio.c relies on 4K alignment. */
 161     if (linfo && desc && (linfo->align != 4096)) {
 162         return -EINVAL;
 163     }
 164
 165     if (!vdev) {
 166         return -EINVAL;
 167     }
 168
 169     if (info) {
 170         virtio_queue_set_rings(vdev, index, desc, info->avail, info->used);
 171     } else {
 172         virtio_queue_set_addr(vdev, index, desc);
 173     }
 174     if (!desc) {
 175         virtio_queue_set_vector(vdev, index, VIRTIO_NO_VECTOR);
 176     } else {
 177         if (info) {
 178             /* virtio-1 allows changing the ring size. */
 179             if (virtio_queue_get_num(vdev, index) < num) {
 180                 /* Fail if we exceed the maximum number. */
 181                 return -EINVAL;
 182             }
 183             virtio_queue_set_num(vdev, index, num);
 184         } else if (virtio_queue_get_num(vdev, index) > num) {
 185             /* Fail if we don't have a big enough queue. */
 186             return -EINVAL;
 187         }
 188         /* We ignore possible increased num for legacy for compatibility. */
 189         virtio_queue_set_vector(vdev, index, index);
 190     }
 191     /* tell notify handler in case of config change */
 192     vdev->config_vector = VIRTIO_CCW_QUEUE_MAX;
 193     return 0;
 194 }
 195
 196 static void virtio_ccw_reset_virtio(VirtioCcwDevice *dev, VirtIODevice *vdev)
 197 {
 198     CcwDevice *ccw_dev = CCW_DEVICE(dev);
 199
 200     virtio_ccw_stop_ioeventfd(dev);
 201     virtio_reset(vdev);
 202     if (dev->indicators) {
 203         release_indicator(&dev->routes.adapter, dev->indicators);
 204         dev->indicators = NULL;
 205     }
 206     if (dev->indicators2) {
 207         release_indicator(&dev->routes.adapter, dev->indicators2);
 208         dev->indicators2 = NULL;
 209     }
 210     if (dev->summary_indicator) {
 211         release_indicator(&dev->routes.adapter, dev->summary_indicator);
 212         dev->summary_indicator = NULL;
 213     }
 214     ccw_dev->sch->thinint_active = false;
 215 }
 216
 217 static int virtio_ccw_handle_set_vq(SubchDev *sch, CCW1 ccw, bool check_len,
 218                                     bool is_legacy)
 219 {
 220     int ret;
 221     VqInfoBlock info;
 222     VqInfoBlockLegacy linfo;
 223     size_t info_len = is_legacy ? sizeof(linfo) : sizeof(info);
 224
 225     if (check_len) {
 226         if (ccw.count != info_len) {
 227             return -EINVAL;
 228         }
 229     } else if (ccw.count < info_len) {
 230         /* Can't execute command. */
 231         return -EINVAL;
 232     }
 233     if (!ccw.cda) {
 234         return -EFAULT;
 235     }
 236     if (is_legacy) {
 237         linfo.queue = address_space_ldq_be(&address_space_memory, ccw.cda,
 238                                            MEMTXATTRS_UNSPECIFIED, NULL);
 239         linfo.align = address_space_ldl_be(&address_space_memory,
 240                                            ccw.cda + sizeof(linfo.queue),
 241                                            MEMTXATTRS_UNSPECIFIED,
 242                                            NULL);
 243         linfo.index = address_space_lduw_be(&address_space_memory,
 244                                             ccw.cda + sizeof(linfo.queue)
 245                                             + sizeof(linfo.align),
 246                                             MEMTXATTRS_UNSPECIFIED,
 247                                             NULL);
 248         linfo.num = address_space_lduw_be(&address_space_memory,
 249                                           ccw.cda + sizeof(linfo.queue)
 250                                           + sizeof(linfo.align)
 251                                           + sizeof(linfo.index),
 252                                           MEMTXATTRS_UNSPECIFIED,
 253                                           NULL);
 254         ret = virtio_ccw_set_vqs(sch, NULL, &linfo);
 255     } else {
 256         info.desc = address_space_ldq_be(&address_space_memory, ccw.cda,
 257                                            MEMTXATTRS_UNSPECIFIED, NULL);
 258         info.index = address_space_lduw_be(&address_space_memory,
 259                                            ccw.cda + sizeof(info.desc)
 260                                            + sizeof(info.res0),
 261                                            MEMTXATTRS_UNSPECIFIED, NULL);
 262         info.num = address_space_lduw_be(&address_space_memory,
 263                                          ccw.cda + sizeof(info.desc)
 264                                          + sizeof(info.res0)
 265                                          + sizeof(info.index),
 266                                          MEMTXATTRS_UNSPECIFIED, NULL);
 267         info.avail = address_space_ldq_be(&address_space_memory,
 268                                           ccw.cda + sizeof(info.desc)
 269                                           + sizeof(info.res0)
 270                                           + sizeof(info.index)
 271                                           + sizeof(info.num),
 272                                           MEMTXATTRS_UNSPECIFIED, NULL);
 273         info.used = address_space_ldq_be(&address_space_memory,
 274                                          ccw.cda + sizeof(info.desc)
 275                                          + sizeof(info.res0)
 276                                          + sizeof(info.index)
 277                                          + sizeof(info.num)
 278                                          + sizeof(info.avail),
 279                                          MEMTXATTRS_UNSPECIFIED, NULL);
 280         ret = virtio_ccw_set_vqs(sch, &info, NULL);
 281     }
 282     sch->curr_status.scsw.count = 0;
 283     return ret;
 284 }
 285
 286 static int virtio_ccw_cb(SubchDev *sch, CCW1 ccw)
 287 {
 288     int ret;
 289     VirtioRevInfo revinfo;
 290     uint8_t status;
 291     VirtioFeatDesc features;
 292     void *config;
 293     hwaddr indicators;
 294     VqConfigBlock vq_config;
 295     VirtioCcwDevice *dev = sch->driver_data;
 296     VirtIODevice *vdev = virtio_ccw_get_vdev(sch);
 297     bool check_len;
 298     int len;
 299     hwaddr hw_len;
 300     VirtioThinintInfo *thinint;
 301
 302     if (!dev) {
 303         return -EINVAL;
 304     }
 305
 306     trace_virtio_ccw_interpret_ccw(sch->cssid, sch->ssid, sch->schid,
 307                                    ccw.cmd_code);
 308     check_len = !((ccw.flags & CCW_FLAG_SLI) && !(ccw.flags & CCW_FLAG_DC));
 309
 310     /* Look at the command. */
 311     switch (ccw.cmd_code) {
 312     case CCW_CMD_SET_VQ:
 313         ret = virtio_ccw_handle_set_vq(sch, ccw, check_len, dev->revision < 1);
 314         break;
 315     case CCW_CMD_VDEV_RESET:
 316         virtio_ccw_reset_virtio(dev, vdev);
 317         ret = 0;
 318         break;
 319     case CCW_CMD_READ_FEAT:
 320         if (check_len) {
 321             if (ccw.count != sizeof(features)) {
 322                 ret = -EINVAL;
 323                 break;
 324             }
 325         } else if (ccw.count < sizeof(features)) {
 326             /* Can't execute command. */
 327             ret = -EINVAL;
 328             break;
 329         }
 330         if (!ccw.cda) {
 331             ret = -EFAULT;
 332         } else {
 333             features.index = address_space_ldub(&address_space_memory,
 334                                                 ccw.cda
 335                                                 + sizeof(features.features),
 336                                                 MEMTXATTRS_UNSPECIFIED,
 337                                                 NULL);
 338             if (features.index == 0) {
 339                 if (dev->revision >= 1) {
 340                     /* Don't offer legacy features for modern devices. */
 341                     features.features = (uint32_t)
 342                         (vdev->host_features & ~VIRTIO_LEGACY_FEATURES);
 343                 } else {
 344                     features.features = (uint32_t)vdev->host_features;
 345                 }
 346             } else if ((features.index == 1) && (dev->revision >= 1)) {
 347                 /*
 348                  * Only offer feature bits beyond 31 if the guest has
 349                  * negotiated at least revision 1.
 350                  */
 351                 features.features = (uint32_t)(vdev->host_features >> 32);
 352             } else {
 353                 /* Return zeroes if the guest supports more feature bits. */
 354                 features.features = 0;
 355             }
 356             address_space_stl_le(&address_space_memory, ccw.cda,
 357                                  features.features, MEMTXATTRS_UNSPECIFIED,
 358                                  NULL);
 359             sch->curr_status.scsw.count = ccw.count - sizeof(features);
 360             ret = 0;
 361         }
 362         break;
 363     case CCW_CMD_WRITE_FEAT:
 364         if (check_len) {
 365             if (ccw.count != sizeof(features)) {
 366                 ret = -EINVAL;
 367                 break;
 368             }
 369         } else if (ccw.count < sizeof(features)) {
 370             /* Can't execute command. */
 371             ret = -EINVAL;
 372             break;
 373         }
 374         if (!ccw.cda) {
 375             ret = -EFAULT;
 376         } else {
 377             features.index = address_space_ldub(&address_space_memory,
 378                                                 ccw.cda
 379                                                 + sizeof(features.features),
 380                                                 MEMTXATTRS_UNSPECIFIED,
 381                                                 NULL);
 382             features.features = address_space_ldl_le(&address_space_memory,
 383                                                      ccw.cda,
 384                                                      MEMTXATTRS_UNSPECIFIED,
 385                                                      NULL);
 386             if (features.index == 0) {
 387                 virtio_set_features(vdev,
 388                                     (vdev->guest_features & 0xffffffff00000000ULL) |
 389                                     features.features);
 390             } else if ((features.index == 1) && (dev->revision >= 1)) {
 391                 /*
 392                  * If the guest did not negotiate at least revision 1,
 393                  * we did not offer it any feature bits beyond 31. Such a
 394                  * guest passing us any bit here is therefore buggy.
 395                  */
 396                 virtio_set_features(vdev,
 397                                     (vdev->guest_features & 0x00000000ffffffffULL) |
 398                                     ((uint64_t)features.features << 32));
 399             } else {
 400                 /*
 401                  * If the guest supports more feature bits, assert that it
 402                  * passes us zeroes for those we don't support.
 403                  */
 404                 if (features.features) {
 405                     fprintf(stderr, "Guest bug: features[%i]=%x (expected 0)\n",
 406                             features.index, features.features);
 407                     /* XXX: do a unit check here? */
 408                 }
 409             }
 410             sch->curr_status.scsw.count = ccw.count - sizeof(features);
 411             ret = 0;
 412         }
 413         break;
 414     case CCW_CMD_READ_CONF:
 415         if (check_len) {
 416             if (ccw.count > vdev->config_len) {
 417                 ret = -EINVAL;
 418                 break;
 419             }
 420         }
 421         len = MIN(ccw.count, vdev->config_len);
 422         if (!ccw.cda) {
 423             ret = -EFAULT;
 424         } else {
 425             virtio_bus_get_vdev_config(&dev->bus, vdev->config);
 426             /* XXX config space endianness */
 427             cpu_physical_memory_write(ccw.cda, vdev->config, len);
 428             sch->curr_status.scsw.count = ccw.count - len;
 429             ret = 0;
 430         }
 431         break;
 432     case CCW_CMD_WRITE_CONF:
 433         if (check_len) {
 434             if (ccw.count > vdev->config_len) {
 435                 ret = -EINVAL;
 436                 break;
 437             }
 438         }
 439         len = MIN(ccw.count, vdev->config_len);
 440         hw_len = len;
 441         if (!ccw.cda) {
 442             ret = -EFAULT;
 443         } else {
 444             config = cpu_physical_memory_map(ccw.cda, &hw_len, 0);
 445             if (!config) {
 446                 ret = -EFAULT;
 447             } else {
 448                 len = hw_len;
 449                 /* XXX config space endianness */
 450                 memcpy(vdev->config, config, len);
 451                 cpu_physical_memory_unmap(config, hw_len, 0, hw_len);
 452                 virtio_bus_set_vdev_config(&dev->bus, vdev->config);
 453                 sch->curr_status.scsw.count = ccw.count - len;
 454                 ret = 0;
 455             }
 456         }
 457         break;
 458     case CCW_CMD_READ_STATUS:
 459         if (check_len) {
 460             if (ccw.count != sizeof(status)) {
 461                 ret = -EINVAL;
 462                 break;
 463             }
 464         } else if (ccw.count < sizeof(status)) {
 465             /* Can't execute command. */
 466             ret = -EINVAL;
 467             break;
 468         }
 469         if (!ccw.cda) {
 470             ret = -EFAULT;
 471         } else {
 472             address_space_stb(&address_space_memory, ccw.cda, vdev->status,
 473                                         MEMTXATTRS_UNSPECIFIED, NULL);
 474             sch->curr_status.scsw.count = ccw.count - sizeof(vdev->status);;
 475             ret = 0;
 476         }
 477         break;
 478     case CCW_CMD_WRITE_STATUS:
 479         if (check_len) {
 480             if (ccw.count != sizeof(status)) {
 481                 ret = -EINVAL;
 482                 break;
 483             }
 484         } else if (ccw.count < sizeof(status)) {
 485             /* Can't execute command. */
 486             ret = -EINVAL;
 487             break;
 488         }
 489         if (!ccw.cda) {
 490             ret = -EFAULT;
 491         } else {
 492             status = address_space_ldub(&address_space_memory, ccw.cda,
 493                                         MEMTXATTRS_UNSPECIFIED, NULL);
 494             if (!(status & VIRTIO_CONFIG_S_DRIVER_OK)) {
 495                 virtio_ccw_stop_ioeventfd(dev);
 496             }
 497             if (virtio_set_status(vdev, status) == 0) {
 498                 if (vdev->status == 0) {
 499                     virtio_ccw_reset_virtio(dev, vdev);
 500                 }
 501                 if (status & VIRTIO_CONFIG_S_DRIVER_OK) {
 502                     virtio_ccw_start_ioeventfd(dev);
 503                 }
 504                 sch->curr_status.scsw.count = ccw.count - sizeof(status);
 505                 ret = 0;
 506             } else {
 507                 /* Trigger a command reject. */
 508                 ret = -ENOSYS;
 509             }
 510         }
 511         break;
 512     case CCW_CMD_SET_IND:
 513         if (check_len) {
 514             if (ccw.count != sizeof(indicators)) {
 515                 ret = -EINVAL;
 516                 break;
 517             }
 518         } else if (ccw.count < sizeof(indicators)) {
 519             /* Can't execute command. */
 520             ret = -EINVAL;
 521             break;
 522         }
 523         if (sch->thinint_active) {
 524             /* Trigger a command reject. */
 525             ret = -ENOSYS;
 526             break;
 527         }
 528         if (!ccw.cda) {
 529             ret = -EFAULT;
 530         } else {
 531             indicators = address_space_ldq_be(&address_space_memory, ccw.cda,
 532                                               MEMTXATTRS_UNSPECIFIED, NULL);
 533             dev->indicators = get_indicator(indicators, sizeof(uint64_t));
 534             sch->curr_status.scsw.count = ccw.count - sizeof(indicators);
 535             ret = 0;
 536         }
 537         break;
 538     case CCW_CMD_SET_CONF_IND:
 539         if (check_len) {
 540             if (ccw.count != sizeof(indicators)) {
 541                 ret = -EINVAL;
 542                 break;
 543             }
 544         } else if (ccw.count < sizeof(indicators)) {
 545             /* Can't execute command. */
 546             ret = -EINVAL;
 547             break;
 548         }
 549         if (!ccw.cda) {
 550             ret = -EFAULT;
 551         } else {
 552             indicators = address_space_ldq_be(&address_space_memory, ccw.cda,
 553                                               MEMTXATTRS_UNSPECIFIED, NULL);
 554             dev->indicators2 = get_indicator(indicators, sizeof(uint64_t));
 555             sch->curr_status.scsw.count = ccw.count - sizeof(indicators);
 556             ret = 0;
 557         }
 558         break;
 559     case CCW_CMD_READ_VQ_CONF:
 560         if (check_len) {
 561             if (ccw.count != sizeof(vq_config)) {
 562                 ret = -EINVAL;
 563                 break;
 564             }
 565         } else if (ccw.count < sizeof(vq_config)) {
 566             /* Can't execute command. */
 567             ret = -EINVAL;
 568             break;
 569         }
 570         if (!ccw.cda) {
 571             ret = -EFAULT;
 572         } else {
 573             vq_config.index = address_space_lduw_be(&address_space_memory,
 574                                                     ccw.cda,
 575                                                     MEMTXATTRS_UNSPECIFIED,
 576                                                     NULL);
 577             if (vq_config.index >= VIRTIO_CCW_QUEUE_MAX) {
 578                 ret = -EINVAL;
 579                 break;
 580             }
 581             vq_config.num_max = virtio_queue_get_num(vdev,
 582                                                      vq_config.index);
 583             address_space_stw_be(&address_space_memory,
 584                                  ccw.cda + sizeof(vq_config.index),
 585                                  vq_config.num_max,
 586                                  MEMTXATTRS_UNSPECIFIED,
 587                                  NULL);
 588             sch->curr_status.scsw.count = ccw.count - sizeof(vq_config);
 589             ret = 0;
 590         }
 591         break;
 592     case CCW_CMD_SET_IND_ADAPTER:
 593         if (check_len) {
 594             if (ccw.count != sizeof(*thinint)) {
 595                 ret = -EINVAL;
 596                 break;
 597             }
 598         } else if (ccw.count < sizeof(*thinint)) {
 599             /* Can't execute command. */
 600             ret = -EINVAL;
 601             break;
 602         }
 603         len = sizeof(*thinint);
 604         hw_len = len;
 605         if (!ccw.cda) {
 606             ret = -EFAULT;
 607         } else if (dev->indicators && !sch->thinint_active) {
 608             /* Trigger a command reject. */
 609             ret = -ENOSYS;
 610         } else {
 611             thinint = cpu_physical_memory_map(ccw.cda, &hw_len, 0);
 612             if (!thinint) {
 613                 ret = -EFAULT;
 614             } else {
 615                 uint64_t ind_bit = ldq_be_p(&thinint->ind_bit);
 616
 617                 len = hw_len;
 618                 dev->summary_indicator =
 619                     get_indicator(ldq_be_p(&thinint->summary_indicator),
 620                                   sizeof(uint8_t));
 621                 dev->indicators =
 622                     get_indicator(ldq_be_p(&thinint->device_indicator),
 623                                   ind_bit / 8 + 1);
 624                 dev->thinint_isc = thinint->isc;
 625                 dev->routes.adapter.ind_offset = ind_bit;
 626                 dev->routes.adapter.summary_offset = 7;
 627                 cpu_physical_memory_unmap(thinint, hw_len, 0, hw_len);
 628                 ret = css_register_io_adapter(CSS_IO_ADAPTER_VIRTIO,
 629                                               dev->thinint_isc, true, false,
 630                                               &dev->routes.adapter.adapter_id);
 631                 assert(ret == 0);
 632                 sch->thinint_active = ((dev->indicators != NULL) &&
 633                                        (dev->summary_indicator != NULL));
 634                 sch->curr_status.scsw.count = ccw.count - len;
 635                 ret = 0;
 636             }
 637         }
 638         break;
 639     case CCW_CMD_SET_VIRTIO_REV:
 640         len = sizeof(revinfo);
 641         if (ccw.count < len) {
 642             ret = -EINVAL;
 643             break;
 644         }
 645         if (!ccw.cda) {
 646             ret = -EFAULT;
 647             break;
 648         }
 649         revinfo.revision =
 650             address_space_lduw_be(&address_space_memory, ccw.cda,
 651                                   MEMTXATTRS_UNSPECIFIED, NULL);
 652         revinfo.length =
 653             address_space_lduw_be(&address_space_memory,
 654                                   ccw.cda + sizeof(revinfo.revision),
 655                                   MEMTXATTRS_UNSPECIFIED, NULL);
 656         if (ccw.count < len + revinfo.length ||
 657             (check_len && ccw.count > len + revinfo.length)) {
 658             ret = -EINVAL;
 659             break;
 660         }
 661         /*
 662          * Once we start to support revisions with additional data, we'll
 663          * need to fetch it here. Nothing to do for now, though.
 664          */
 665         if (dev->revision >= 0 ||
 666             revinfo.revision > virtio_ccw_rev_max(dev)) {
 667             ret = -ENOSYS;
 668             break;
 669         }
 670         ret = 0;
 671         dev->revision = revinfo.revision;
 672         break;
 673     default:
 674         ret = -ENOSYS;
 675         break;
 676     }
 677     return ret;
 678 }
 679
 680 static void virtio_sch_disable_cb(SubchDev *sch)
 681 {
 682     VirtioCcwDevice *dev = sch->driver_data;
 683
 684     dev->revision = -1;
 685 }
 686
 687 static void virtio_ccw_device_realize(VirtioCcwDevice *dev, Error **errp)
 688 {
 689     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_GET_CLASS(dev);
 690     CcwDevice *ccw_dev = CCW_DEVICE(dev);
 691     SubchDev *sch = css_create_virtual_sch(ccw_dev->bus_id, errp);
 692     Error *err = NULL;
 693
 694     if (!sch) {
 695         return;
 696     }
 697
 698     sch->driver_data = dev;
 699     sch->ccw_cb = virtio_ccw_cb;
 700     sch->disable_cb = virtio_sch_disable_cb;
 701     sch->id.reserved = 0xff;
 702     sch->id.cu_type = VIRTIO_CCW_CU_TYPE;
 703     ccw_dev->sch = sch;
 704     dev->indicators = NULL;
 705     dev->revision = -1;
 706     css_sch_build_virtual_schib(sch, 0, VIRTIO_CCW_CHPID_TYPE);
 707
 708     trace_virtio_ccw_new_device(
 709         sch->cssid, sch->ssid, sch->schid, sch->devno,
 710         ccw_dev->bus_id.valid ? "user-configured" : "auto-configured");
 711
 712     if (k->realize) {
 713         k->realize(dev, &err);
 714     }
 715     if (err) {
 716         error_propagate(errp, err);
 717         css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL);
 718         ccw_dev->sch = NULL;
 719         g_free(sch);
 720     }
 721 }
 722
 723 static int virtio_ccw_exit(VirtioCcwDevice *dev)
 724 {
 725     CcwDevice *ccw_dev = CCW_DEVICE(dev);
 726     SubchDev *sch = ccw_dev->sch;
 727
 728     if (sch) {
 729         css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL);
 730         g_free(sch);
 731     }
 732     if (dev->indicators) {
 733         release_indicator(&dev->routes.adapter, dev->indicators);
 734         dev->indicators = NULL;
 735     }
 736     return 0;
 737 }
 738
 739 static void virtio_ccw_net_realize(VirtioCcwDevice *ccw_dev, Error **errp)
 740 {
 741     DeviceState *qdev = DEVICE(ccw_dev);
 742     VirtIONetCcw *dev = VIRTIO_NET_CCW(ccw_dev);
 743     DeviceState *vdev = DEVICE(&dev->vdev);
 744
 745     virtio_net_set_netclient_name(&dev->vdev, qdev->id,
 746                                   object_get_typename(OBJECT(qdev)));
 747     qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
 748     object_property_set_bool(OBJECT(vdev), true, "realized", errp);
 749 }
 750
 751 static void virtio_ccw_net_instance_init(Object *obj)
 752 {
 753     VirtIONetCcw *dev = VIRTIO_NET_CCW(obj);
 754
 755     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
 756                                 TYPE_VIRTIO_NET);
 757     object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
 758                               "bootindex", &error_abort);
 759 }
 760
 761 static void virtio_ccw_blk_realize(VirtioCcwDevice *ccw_dev, Error **errp)
 762 {
 763     VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(ccw_dev);
 764     DeviceState *vdev = DEVICE(&dev->vdev);
 765
 766     qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
 767     object_property_set_bool(OBJECT(vdev), true, "realized", errp);
 768 }
 769
 770 static void virtio_ccw_blk_instance_init(Object *obj)
 771 {
 772     VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(obj);
 773
 774     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
 775                                 TYPE_VIRTIO_BLK);
 776     object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev),"iothread",
 777                               &error_abort);
 778     object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
 779                               "bootindex", &error_abort);
 780 }
 781
 782 static void virtio_ccw_serial_realize(VirtioCcwDevice *ccw_dev, Error **errp)
 783 {
 784     VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(ccw_dev);
 785     DeviceState *vdev = DEVICE(&dev->vdev);
 786     DeviceState *proxy = DEVICE(ccw_dev);
 787     char *bus_name;
 788
 789     /*
 790      * For command line compatibility, this sets the virtio-serial-device bus
 791      * name as before.
 792      */
 793     if (proxy->id) {
 794         bus_name = g_strdup_printf("%s.0", proxy->id);
 795         virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
 796         g_free(bus_name);
 797     }
 798
 799     qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
 800     object_property_set_bool(OBJECT(vdev), true, "realized", errp);
 801 }
 802
 803
 804 static void virtio_ccw_serial_instance_init(Object *obj)
 805 {
 806     VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(obj);
 807
 808     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
 809                                 TYPE_VIRTIO_SERIAL);
 810 }
 811
 812 static void virtio_ccw_balloon_realize(VirtioCcwDevice *ccw_dev, Error **errp)
 813 {
 814     VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(ccw_dev);
 815     DeviceState *vdev = DEVICE(&dev->vdev);
 816
 817     qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
 818     object_property_set_bool(OBJECT(vdev), true, "realized", errp);
 819 }
 820
 821 static void virtio_ccw_balloon_instance_init(Object *obj)
 822 {
 823     VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(obj);
 824
 825     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
 826                                 TYPE_VIRTIO_BALLOON);
 827     object_property_add_alias(obj, "guest-stats", OBJECT(&dev->vdev),
 828                               "guest-stats", &error_abort);
 829     object_property_add_alias(obj, "guest-stats-polling-interval",
 830                               OBJECT(&dev->vdev),
 831                               "guest-stats-polling-interval", &error_abort);
 832 }
 833
 834 static void virtio_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp)
 835 {
 836     VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(ccw_dev);
 837     DeviceState *vdev = DEVICE(&dev->vdev);
 838     DeviceState *qdev = DEVICE(ccw_dev);
 839     char *bus_name;
 840
 841     /*
 842      * For command line compatibility, this sets the virtio-scsi-device bus
 843      * name as before.
 844      */
 845     if (qdev->id) {
 846         bus_name = g_strdup_printf("%s.0", qdev->id);
 847         virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
 848         g_free(bus_name);
 849     }
 850
 851     qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
 852     object_property_set_bool(OBJECT(vdev), true, "realized", errp);
 853 }
 854
 855 static void virtio_ccw_scsi_instance_init(Object *obj)
 856 {
 857     VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(obj);
 858
 859     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
 860                                 TYPE_VIRTIO_SCSI);
 861     object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev), "iothread",
 862                               &error_abort);
 863 }
 864
 865 #ifdef CONFIG_VHOST_SCSI
 866 static void vhost_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp)
 867 {
 868     VHostSCSICcw *dev = VHOST_SCSI_CCW(ccw_dev);
 869     DeviceState *vdev = DEVICE(&dev->vdev);
 870
 871     qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
 872     object_property_set_bool(OBJECT(vdev), true, "realized", errp);
 873 }
 874
 875 static void vhost_ccw_scsi_instance_init(Object *obj)
 876 {
 877     VHostSCSICcw *dev = VHOST_SCSI_CCW(obj);
 878
 879     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
 880                                 TYPE_VHOST_SCSI);
 881 }
 882 #endif
 883
 884 static void virtio_ccw_rng_realize(VirtioCcwDevice *ccw_dev, Error **errp)
 885 {
 886     VirtIORNGCcw *dev = VIRTIO_RNG_CCW(ccw_dev);
 887     DeviceState *vdev = DEVICE(&dev->vdev);
 888     Error *err = NULL;
 889
 890     qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
 891     object_property_set_bool(OBJECT(vdev), true, "realized", &err);
 892     if (err) {
 893         error_propagate(errp, err);
 894         return;
 895     }
 896
 897     object_property_set_link(OBJECT(dev),
 898                              OBJECT(dev->vdev.conf.rng), "rng",
 899                              NULL);
 900 }
 901
 902 /* DeviceState to VirtioCcwDevice. Note: used on datapath,
 903  * be careful and test performance if you change this.
 904  */
 905 static inline VirtioCcwDevice *to_virtio_ccw_dev_fast(DeviceState *d)
 906 {
 907     CcwDevice *ccw_dev = to_ccw_dev_fast(d);
 908
 909     return container_of(ccw_dev, VirtioCcwDevice, parent_obj);
 910 }
 911
 912 static uint8_t virtio_set_ind_atomic(SubchDev *sch, uint64_t ind_loc,
 913                                      uint8_t to_be_set)
 914 {
 915     uint8_t ind_old, ind_new;
 916     hwaddr len = 1;
 917     uint8_t *ind_addr;
 918
 919     ind_addr = cpu_physical_memory_map(ind_loc, &len, 1);
 920     if (!ind_addr) {
 921         error_report("%s(%x.%x.%04x): unable to access indicator",
 922                      __func__, sch->cssid, sch->ssid, sch->schid);
 923         return -1;
 924     }
 925     do {
 926         ind_old = *ind_addr;
 927         ind_new = ind_old | to_be_set;
 928     } while (atomic_cmpxchg(ind_addr, ind_old, ind_new) != ind_old);
 929     trace_virtio_ccw_set_ind(ind_loc, ind_old, ind_new);
 930     cpu_physical_memory_unmap(ind_addr, len, 1, len);
 931
 932     return ind_old;
 933 }
 934
 935 static void virtio_ccw_notify(DeviceState *d, uint16_t vector)
 936 {
 937     VirtioCcwDevice *dev = to_virtio_ccw_dev_fast(d);
 938     CcwDevice *ccw_dev = to_ccw_dev_fast(d);
 939     SubchDev *sch = ccw_dev->sch;
 940     uint64_t indicators;
 941
 942     /* queue indicators + secondary indicators */
 943     if (vector >= VIRTIO_CCW_QUEUE_MAX + 64) {
 944         return;
 945     }
 946
 947     if (vector < VIRTIO_CCW_QUEUE_MAX) {
 948         if (!dev->indicators) {
 949             return;
 950         }
 951         if (sch->thinint_active) {
 952             /*
 953              * In the adapter interrupt case, indicators points to a
 954              * memory area that may be (way) larger than 64 bit and
 955              * ind_bit indicates the start of the indicators in a big
 956              * endian notation.
 957              */
 958             uint64_t ind_bit = dev->routes.adapter.ind_offset;
 959
 960             virtio_set_ind_atomic(sch, dev->indicators->addr +
 961                                   (ind_bit + vector) / 8,
 962                                   0x80 >> ((ind_bit + vector) % 8));
 963             if (!virtio_set_ind_atomic(sch, dev->summary_indicator->addr,
 964                                        0x01)) {
 965                 css_adapter_interrupt(dev->thinint_isc);
 966             }
 967         } else {
 968             indicators = address_space_ldq(&address_space_memory,
 969                                            dev->indicators->addr,
 970                                            MEMTXATTRS_UNSPECIFIED,
 971                                            NULL);
 972             indicators |= 1ULL << vector;
 973             address_space_stq(&address_space_memory, dev->indicators->addr,
 974                               indicators, MEMTXATTRS_UNSPECIFIED, NULL);
 975             css_conditional_io_interrupt(sch);
 976         }
 977     } else {
 978         if (!dev->indicators2) {
 979             return;
 980         }
 981         vector = 0;
 982         indicators = address_space_ldq(&address_space_memory,
 983                                        dev->indicators2->addr,
 984                                        MEMTXATTRS_UNSPECIFIED,
 985                                        NULL);
 986         indicators |= 1ULL << vector;
 987         address_space_stq(&address_space_memory, dev->indicators2->addr,
 988                           indicators, MEMTXATTRS_UNSPECIFIED, NULL);
 989         css_conditional_io_interrupt(sch);
 990     }
 991 }
 992
 993 static void virtio_ccw_reset(DeviceState *d)
 994 {
 995     VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
 996     VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
 997     CcwDevice *ccw_dev = CCW_DEVICE(d);
 998
 999     virtio_ccw_reset_virtio(dev, vdev);
1000     css_reset_sch(ccw_dev->sch);
1001 }
1002
1003 static void virtio_ccw_vmstate_change(DeviceState *d, bool running)
1004 {
1005     VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1006
1007     if (running) {
1008         virtio_ccw_start_ioeventfd(dev);
1009     } else {
1010         virtio_ccw_stop_ioeventfd(dev);
1011     }
1012 }
1013
1014 static bool virtio_ccw_query_guest_notifiers(DeviceState *d)
1015 {
1016     CcwDevice *dev = CCW_DEVICE(d);
1017
1018     return !!(dev->sch->curr_status.pmcw.flags & PMCW_FLAGS_MASK_ENA);
1019 }
1020
1021 static int virtio_ccw_get_mappings(VirtioCcwDevice *dev)
1022 {
1023     int r;
1024     CcwDevice *ccw_dev = CCW_DEVICE(dev);
1025
1026     if (!ccw_dev->sch->thinint_active) {
1027         return -EINVAL;
1028     }
1029
1030     r = map_indicator(&dev->routes.adapter, dev->summary_indicator);
1031     if (r) {
1032         return r;
1033     }
1034     r = map_indicator(&dev->routes.adapter, dev->indicators);
1035     if (r) {
1036         return r;
1037     }
1038     dev->routes.adapter.summary_addr = dev->summary_indicator->map;
1039     dev->routes.adapter.ind_addr = dev->indicators->map;
1040
1041     return 0;
1042 }
1043
1044 static int virtio_ccw_setup_irqroutes(VirtioCcwDevice *dev, int nvqs)
1045 {
1046     int i;
1047     VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1048     int ret;
1049     S390FLICState *fs = s390_get_flic();
1050     S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs);
1051
1052     ret = virtio_ccw_get_mappings(dev);
1053     if (ret) {
1054         return ret;
1055     }
1056     for (i = 0; i < nvqs; i++) {
1057         if (!virtio_queue_get_num(vdev, i)) {
1058             break;
1059         }
1060     }
1061     dev->routes.num_routes = i;
1062     return fsc->add_adapter_routes(fs, &dev->routes);
1063 }
1064
1065 static void virtio_ccw_release_irqroutes(VirtioCcwDevice *dev, int nvqs)
1066 {
1067     S390FLICState *fs = s390_get_flic();
1068     S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs);
1069
1070     fsc->release_adapter_routes(fs, &dev->routes);
1071 }
1072
1073 static int virtio_ccw_add_irqfd(VirtioCcwDevice *dev, int n)
1074 {
1075     VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1076     VirtQueue *vq = virtio_get_queue(vdev, n);
1077     EventNotifier *notifier = virtio_queue_get_guest_notifier(vq);
1078
1079     return kvm_irqchip_add_irqfd_notifier_gsi(kvm_state, notifier, NULL,
1080                                               dev->routes.gsi[n]);
1081 }
1082
1083 static void virtio_ccw_remove_irqfd(VirtioCcwDevice *dev, int n)
1084 {
1085     VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1086     VirtQueue *vq = virtio_get_queue(vdev, n);
1087     EventNotifier *notifier = virtio_queue_get_guest_notifier(vq);
1088     int ret;
1089
1090     ret = kvm_irqchip_remove_irqfd_notifier_gsi(kvm_state, notifier,
1091                                                 dev->routes.gsi[n]);
1092     assert(ret == 0);
1093 }
1094
1095 static int virtio_ccw_set_guest_notifier(VirtioCcwDevice *dev, int n,
1096                                          bool assign, bool with_irqfd)
1097 {
1098     VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1099     VirtQueue *vq = virtio_get_queue(vdev, n);
1100     EventNotifier *notifier = virtio_queue_get_guest_notifier(vq);
1101     VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
1102
1103     if (assign) {
1104         int r = event_notifier_init(notifier, 0);
1105
1106         if (r < 0) {
1107             return r;
1108         }
1109         virtio_queue_set_guest_notifier_fd_handler(vq, true, with_irqfd);
1110         if (with_irqfd) {
1111             r = virtio_ccw_add_irqfd(dev, n);
1112             if (r) {
1113                 virtio_queue_set_guest_notifier_fd_handler(vq, false,
1114                                                            with_irqfd);
1115                 return r;
1116             }
1117         }
1118         /*
1119          * We do not support individual masking for channel devices, so we
1120          * need to manually trigger any guest masking callbacks here.
1121          */
1122         if (k->guest_notifier_mask) {
1123             k->guest_notifier_mask(vdev, n, false);
1124         }
1125         /* get lost events and re-inject */
1126         if (k->guest_notifier_pending &&
1127             k->guest_notifier_pending(vdev, n)) {
1128             event_notifier_set(notifier);
1129         }
1130     } else {
1131         if (k->guest_notifier_mask) {
1132             k->guest_notifier_mask(vdev, n, true);
1133         }
1134         if (with_irqfd) {
1135             virtio_ccw_remove_irqfd(dev, n);
1136         }
1137         virtio_queue_set_guest_notifier_fd_handler(vq, false, with_irqfd);
1138         event_notifier_cleanup(notifier);
1139     }
1140     return 0;
1141 }
1142
1143 static int virtio_ccw_set_guest_notifiers(DeviceState *d, int nvqs,
1144                                           bool assigned)
1145 {
1146     VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1147     VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1148     CcwDevice *ccw_dev = CCW_DEVICE(d);
1149     bool with_irqfd = ccw_dev->sch->thinint_active && kvm_irqfds_enabled();
1150     int r, n;
1151
1152     if (with_irqfd && assigned) {
1153         /* irq routes need to be set up before assigning irqfds */
1154         r = virtio_ccw_setup_irqroutes(dev, nvqs);
1155         if (r < 0) {
1156             goto irqroute_error;
1157         }
1158     }
1159     for (n = 0; n < nvqs; n++) {
1160         if (!virtio_queue_get_num(vdev, n)) {
1161             break;
1162         }
1163         r = virtio_ccw_set_guest_notifier(dev, n, assigned, with_irqfd);
1164         if (r < 0) {
1165             goto assign_error;
1166         }
1167     }
1168     if (with_irqfd && !assigned) {
1169         /* release irq routes after irqfds have been released */
1170         virtio_ccw_release_irqroutes(dev, nvqs);
1171     }
1172     return 0;
1173
1174 assign_error:
1175     while (--n >= 0) {
1176         virtio_ccw_set_guest_notifier(dev, n, !assigned, false);
1177     }
1178 irqroute_error:
1179     if (with_irqfd && assigned) {
1180         virtio_ccw_release_irqroutes(dev, nvqs);
1181     }
1182     return r;
1183 }
1184
1185 static void virtio_ccw_save_queue(DeviceState *d, int n, QEMUFile *f)
1186 {
1187     VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1188     VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1189
1190     qemu_put_be16(f, virtio_queue_vector(vdev, n));
1191 }
1192
1193 static int virtio_ccw_load_queue(DeviceState *d, int n, QEMUFile *f)
1194 {
1195     VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1196     VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1197     uint16_t vector;
1198
1199     qemu_get_be16s(f, &vector);
1200     virtio_queue_set_vector(vdev, n , vector);
1201
1202     return 0;
1203 }
1204
1205 static void virtio_ccw_save_config(DeviceState *d, QEMUFile *f)
1206 {
1207     VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1208     CcwDevice *ccw_dev = CCW_DEVICE(d);
1209     SubchDev *s = ccw_dev->sch;
1210     VirtIODevice *vdev = virtio_ccw_get_vdev(s);
1211
1212     subch_device_save(s, f);
1213     if (dev->indicators != NULL) {
1214         qemu_put_be32(f, dev->indicators->len);
1215         qemu_put_be64(f, dev->indicators->addr);
1216     } else {
1217         qemu_put_be32(f, 0);
1218         qemu_put_be64(f, 0UL);
1219     }
1220     if (dev->indicators2 != NULL) {
1221         qemu_put_be32(f, dev->indicators2->len);
1222         qemu_put_be64(f, dev->indicators2->addr);
1223     } else {
1224         qemu_put_be32(f, 0);
1225         qemu_put_be64(f, 0UL);
1226     }
1227     if (dev->summary_indicator != NULL) {
1228         qemu_put_be32(f, dev->summary_indicator->len);
1229         qemu_put_be64(f, dev->summary_indicator->addr);
1230     } else {
1231         qemu_put_be32(f, 0);
1232         qemu_put_be64(f, 0UL);
1233     }
1234     qemu_put_be16(f, vdev->config_vector);
1235     qemu_put_be64(f, dev->routes.adapter.ind_offset);
1236     qemu_put_byte(f, dev->thinint_isc);
1237     qemu_put_be32(f, dev->revision);
1238 }
1239
1240 static int virtio_ccw_load_config(DeviceState *d, QEMUFile *f)
1241 {
1242     VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1243     CcwDevice *ccw_dev = CCW_DEVICE(d);
1244     SubchDev *s = ccw_dev->sch;
1245     VirtIODevice *vdev = virtio_ccw_get_vdev(s);
1246     int len;
1247
1248     s->driver_data = dev;
1249     subch_device_load(s, f);
1250     len = qemu_get_be32(f);
1251     if (len != 0) {
1252         dev->indicators = get_indicator(qemu_get_be64(f), len);
1253     } else {
1254         qemu_get_be64(f);
1255         dev->indicators = NULL;
1256     }
1257     len = qemu_get_be32(f);
1258     if (len != 0) {
1259         dev->indicators2 = get_indicator(qemu_get_be64(f), len);
1260     } else {
1261         qemu_get_be64(f);
1262         dev->indicators2 = NULL;
1263     }
1264     len = qemu_get_be32(f);
1265     if (len != 0) {
1266         dev->summary_indicator = get_indicator(qemu_get_be64(f), len);
1267     } else {
1268         qemu_get_be64(f);
1269         dev->summary_indicator = NULL;
1270     }
1271     qemu_get_be16s(f, &vdev->config_vector);
1272     dev->routes.adapter.ind_offset = qemu_get_be64(f);
1273     dev->thinint_isc = qemu_get_byte(f);
1274     dev->revision = qemu_get_be32(f);
1275     if (s->thinint_active) {
1276         return css_register_io_adapter(CSS_IO_ADAPTER_VIRTIO,
1277                                        dev->thinint_isc, true, false,
1278                                        &dev->routes.adapter.adapter_id);
1279     }
1280
1281     return 0;
1282 }
1283
1284 static void virtio_ccw_pre_plugged(DeviceState *d, Error **errp)
1285 {
1286    VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1287    VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1288
1289     if (dev->max_rev >= 1) {
1290         virtio_add_feature(&vdev->host_features, VIRTIO_F_VERSION_1);
1291     }
1292 }
1293
1294 /* This is called by virtio-bus just after the device is plugged. */
1295 static void virtio_ccw_device_plugged(DeviceState *d, Error **errp)
1296 {
1297     VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1298     VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
1299     CcwDevice *ccw_dev = CCW_DEVICE(d);
1300     SubchDev *sch = ccw_dev->sch;
1301     int n = virtio_get_num_queues(vdev);
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_CCW_QUEUE_MAX) {
1308         error_setg(errp, "The number of virtqueues %d "
1309                    "exceeds ccw limit %d", n,
1310                    VIRTIO_CCW_QUEUE_MAX);
1311         return;
1312     }
1313
1314     if (!kvm_eventfds_enabled()) {
1315         dev->flags &= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD;
1316     }
1317
1318     sch->id.cu_model = virtio_bus_get_vdev_id(&dev->bus);
1319
1320
1321     css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid,
1322                           d->hotplugged, 1);
1323 }
1324
1325 static void virtio_ccw_device_unplugged(DeviceState *d)
1326 {
1327     VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
1328
1329     virtio_ccw_stop_ioeventfd(dev);
1330 }
1331 /**************** Virtio-ccw Bus Device Descriptions *******************/
1332
1333 static Property virtio_ccw_net_properties[] = {
1334     DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
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->exit = virtio_ccw_exit;
1349     dc->reset = virtio_ccw_reset;
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_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
1364     DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1365                     VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
1366     DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1367                        VIRTIO_CCW_MAX_REV),
1368     DEFINE_PROP_END_OF_LIST(),
1369 };
1370
1371 static void virtio_ccw_blk_class_init(ObjectClass *klass, void *data)
1372 {
1373     DeviceClass *dc = DEVICE_CLASS(klass);
1374     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1375
1376     k->realize = virtio_ccw_blk_realize;
1377     k->exit = virtio_ccw_exit;
1378     dc->reset = virtio_ccw_reset;
1379     dc->props = virtio_ccw_blk_properties;
1380     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
1381 }
1382
1383 static const TypeInfo virtio_ccw_blk = {
1384     .name          = TYPE_VIRTIO_BLK_CCW,
1385     .parent        = TYPE_VIRTIO_CCW_DEVICE,
1386     .instance_size = sizeof(VirtIOBlkCcw),
1387     .instance_init = virtio_ccw_blk_instance_init,
1388     .class_init    = virtio_ccw_blk_class_init,
1389 };
1390
1391 static Property virtio_ccw_serial_properties[] = {
1392     DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
1393     DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1394                     VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
1395     DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1396                        VIRTIO_CCW_MAX_REV),
1397     DEFINE_PROP_END_OF_LIST(),
1398 };
1399
1400 static void virtio_ccw_serial_class_init(ObjectClass *klass, void *data)
1401 {
1402     DeviceClass *dc = DEVICE_CLASS(klass);
1403     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1404
1405     k->realize = virtio_ccw_serial_realize;
1406     k->exit = virtio_ccw_exit;
1407     dc->reset = virtio_ccw_reset;
1408     dc->props = virtio_ccw_serial_properties;
1409     set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
1410 }
1411
1412 static const TypeInfo virtio_ccw_serial = {
1413     .name          = TYPE_VIRTIO_SERIAL_CCW,
1414     .parent        = TYPE_VIRTIO_CCW_DEVICE,
1415     .instance_size = sizeof(VirtioSerialCcw),
1416     .instance_init = virtio_ccw_serial_instance_init,
1417     .class_init    = virtio_ccw_serial_class_init,
1418 };
1419
1420 static Property virtio_ccw_balloon_properties[] = {
1421     DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
1422     DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1423                     VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
1424     DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1425                        VIRTIO_CCW_MAX_REV),
1426     DEFINE_PROP_END_OF_LIST(),
1427 };
1428
1429 static void virtio_ccw_balloon_class_init(ObjectClass *klass, void *data)
1430 {
1431     DeviceClass *dc = DEVICE_CLASS(klass);
1432     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1433
1434     k->realize = virtio_ccw_balloon_realize;
1435     k->exit = virtio_ccw_exit;
1436     dc->reset = virtio_ccw_reset;
1437     dc->props = virtio_ccw_balloon_properties;
1438     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
1439 }
1440
1441 static const TypeInfo virtio_ccw_balloon = {
1442     .name          = TYPE_VIRTIO_BALLOON_CCW,
1443     .parent        = TYPE_VIRTIO_CCW_DEVICE,
1444     .instance_size = sizeof(VirtIOBalloonCcw),
1445     .instance_init = virtio_ccw_balloon_instance_init,
1446     .class_init    = virtio_ccw_balloon_class_init,
1447 };
1448
1449 static Property virtio_ccw_scsi_properties[] = {
1450     DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
1451     DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1452                     VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
1453     DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1454                        VIRTIO_CCW_MAX_REV),
1455     DEFINE_PROP_END_OF_LIST(),
1456 };
1457
1458 static void virtio_ccw_scsi_class_init(ObjectClass *klass, void *data)
1459 {
1460     DeviceClass *dc = DEVICE_CLASS(klass);
1461     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1462
1463     k->realize = virtio_ccw_scsi_realize;
1464     k->exit = virtio_ccw_exit;
1465     dc->reset = virtio_ccw_reset;
1466     dc->props = virtio_ccw_scsi_properties;
1467     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
1468 }
1469
1470 static const TypeInfo virtio_ccw_scsi = {
1471     .name          = TYPE_VIRTIO_SCSI_CCW,
1472     .parent        = TYPE_VIRTIO_CCW_DEVICE,
1473     .instance_size = sizeof(VirtIOSCSICcw),
1474     .instance_init = virtio_ccw_scsi_instance_init,
1475     .class_init    = virtio_ccw_scsi_class_init,
1476 };
1477
1478 #ifdef CONFIG_VHOST_SCSI
1479 static Property vhost_ccw_scsi_properties[] = {
1480     DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
1481     DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1482                        VIRTIO_CCW_MAX_REV),
1483     DEFINE_PROP_END_OF_LIST(),
1484 };
1485
1486 static void vhost_ccw_scsi_class_init(ObjectClass *klass, void *data)
1487 {
1488     DeviceClass *dc = DEVICE_CLASS(klass);
1489     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1490
1491     k->realize = vhost_ccw_scsi_realize;
1492     k->exit = virtio_ccw_exit;
1493     dc->reset = virtio_ccw_reset;
1494     dc->props = vhost_ccw_scsi_properties;
1495     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
1496 }
1497
1498 static const TypeInfo vhost_ccw_scsi = {
1499     .name          = TYPE_VHOST_SCSI_CCW,
1500     .parent        = TYPE_VIRTIO_CCW_DEVICE,
1501     .instance_size = sizeof(VHostSCSICcw),
1502     .instance_init = vhost_ccw_scsi_instance_init,
1503     .class_init    = vhost_ccw_scsi_class_init,
1504 };
1505 #endif
1506
1507 static void virtio_ccw_rng_instance_init(Object *obj)
1508 {
1509     VirtIORNGCcw *dev = VIRTIO_RNG_CCW(obj);
1510
1511     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
1512                                 TYPE_VIRTIO_RNG);
1513     object_property_add_alias(obj, "rng", OBJECT(&dev->vdev),
1514                               "rng", &error_abort);
1515 }
1516
1517 static Property virtio_ccw_rng_properties[] = {
1518     DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
1519     DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1520                     VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
1521     DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1522                        VIRTIO_CCW_MAX_REV),
1523     DEFINE_PROP_END_OF_LIST(),
1524 };
1525
1526 static void virtio_ccw_rng_class_init(ObjectClass *klass, void *data)
1527 {
1528     DeviceClass *dc = DEVICE_CLASS(klass);
1529     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1530
1531     k->realize = virtio_ccw_rng_realize;
1532     k->exit = virtio_ccw_exit;
1533     dc->reset = virtio_ccw_reset;
1534     dc->props = virtio_ccw_rng_properties;
1535     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
1536 }
1537
1538 static const TypeInfo virtio_ccw_rng = {
1539     .name          = TYPE_VIRTIO_RNG_CCW,
1540     .parent        = TYPE_VIRTIO_CCW_DEVICE,
1541     .instance_size = sizeof(VirtIORNGCcw),
1542     .instance_init = virtio_ccw_rng_instance_init,
1543     .class_init    = virtio_ccw_rng_class_init,
1544 };
1545
1546 static void virtio_ccw_busdev_realize(DeviceState *dev, Error **errp)
1547 {
1548     VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev;
1549
1550     virtio_ccw_bus_new(&_dev->bus, sizeof(_dev->bus), _dev);
1551     virtio_ccw_device_realize(_dev, errp);
1552 }
1553
1554 static int virtio_ccw_busdev_exit(DeviceState *dev)
1555 {
1556     VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev;
1557     VirtIOCCWDeviceClass *_info = VIRTIO_CCW_DEVICE_GET_CLASS(dev);
1558
1559     return _info->exit(_dev);
1560 }
1561
1562 static void virtio_ccw_busdev_unplug(HotplugHandler *hotplug_dev,
1563                                      DeviceState *dev, Error **errp)
1564 {
1565     VirtioCcwDevice *_dev = to_virtio_ccw_dev_fast(dev);
1566
1567     virtio_ccw_stop_ioeventfd(_dev);
1568 }
1569
1570 static void virtio_ccw_device_class_init(ObjectClass *klass, void *data)
1571 {
1572     DeviceClass *dc = DEVICE_CLASS(klass);
1573     CCWDeviceClass *k = CCW_DEVICE_CLASS(dc);
1574
1575     k->unplug = virtio_ccw_busdev_unplug;
1576     dc->realize = virtio_ccw_busdev_realize;
1577     dc->exit = virtio_ccw_busdev_exit;
1578     dc->bus_type = TYPE_VIRTUAL_CSS_BUS;
1579 }
1580
1581 static const TypeInfo virtio_ccw_device_info = {
1582     .name = TYPE_VIRTIO_CCW_DEVICE,
1583     .parent = TYPE_CCW_DEVICE,
1584     .instance_size = sizeof(VirtioCcwDevice),
1585     .class_init = virtio_ccw_device_class_init,
1586     .class_size = sizeof(VirtIOCCWDeviceClass),
1587     .abstract = true,
1588 };
1589
1590 /* virtio-ccw-bus */
1591
1592 static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size,
1593                                VirtioCcwDevice *dev)
1594 {
1595     DeviceState *qdev = DEVICE(dev);
1596     char virtio_bus_name[] = "virtio-bus";
1597
1598     qbus_create_inplace(bus, bus_size, TYPE_VIRTIO_CCW_BUS,
1599                         qdev, virtio_bus_name);
1600 }
1601
1602 static void virtio_ccw_bus_class_init(ObjectClass *klass, void *data)
1603 {
1604     VirtioBusClass *k = VIRTIO_BUS_CLASS(klass);
1605     BusClass *bus_class = BUS_CLASS(klass);
1606
1607     bus_class->max_dev = 1;
1608     k->notify = virtio_ccw_notify;
1609     k->vmstate_change = virtio_ccw_vmstate_change;
1610     k->query_guest_notifiers = virtio_ccw_query_guest_notifiers;
1611     k->set_guest_notifiers = virtio_ccw_set_guest_notifiers;
1612     k->save_queue = virtio_ccw_save_queue;
1613     k->load_queue = virtio_ccw_load_queue;
1614     k->save_config = virtio_ccw_save_config;
1615     k->load_config = virtio_ccw_load_config;
1616     k->pre_plugged = virtio_ccw_pre_plugged;
1617     k->device_plugged = virtio_ccw_device_plugged;
1618     k->device_unplugged = virtio_ccw_device_unplugged;
1619     k->ioeventfd_started = virtio_ccw_ioeventfd_started;
1620     k->ioeventfd_set_started = virtio_ccw_ioeventfd_set_started;
1621     k->ioeventfd_disabled = virtio_ccw_ioeventfd_disabled;
1622     k->ioeventfd_set_disabled = virtio_ccw_ioeventfd_set_disabled;
1623     k->ioeventfd_assign = virtio_ccw_ioeventfd_assign;
1624 }
1625
1626 static const TypeInfo virtio_ccw_bus_info = {
1627     .name = TYPE_VIRTIO_CCW_BUS,
1628     .parent = TYPE_VIRTIO_BUS,
1629     .instance_size = sizeof(VirtioCcwBusState),
1630     .class_init = virtio_ccw_bus_class_init,
1631 };
1632
1633 #ifdef CONFIG_VIRTFS
1634 static Property virtio_ccw_9p_properties[] = {
1635     DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
1636     DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
1637             VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
1638     DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1639                        VIRTIO_CCW_MAX_REV),
1640     DEFINE_PROP_END_OF_LIST(),
1641 };
1642
1643 static void virtio_ccw_9p_realize(VirtioCcwDevice *ccw_dev, Error **errp)
1644 {
1645     V9fsCCWState *dev = VIRTIO_9P_CCW(ccw_dev);
1646     DeviceState *vdev = DEVICE(&dev->vdev);
1647
1648     qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
1649     object_property_set_bool(OBJECT(vdev), true, "realized", errp);
1650 }
1651
1652 static void virtio_ccw_9p_class_init(ObjectClass *klass, void *data)
1653 {
1654     DeviceClass *dc = DEVICE_CLASS(klass);
1655     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1656
1657     k->exit = virtio_ccw_exit;
1658     k->realize = virtio_ccw_9p_realize;
1659     dc->reset = virtio_ccw_reset;
1660     dc->props = virtio_ccw_9p_properties;
1661     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
1662 }
1663
1664 static void virtio_ccw_9p_instance_init(Object *obj)
1665 {
1666     V9fsCCWState *dev = VIRTIO_9P_CCW(obj);
1667
1668     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
1669                                 TYPE_VIRTIO_9P);
1670 }
1671
1672 static const TypeInfo virtio_ccw_9p_info = {
1673     .name          = TYPE_VIRTIO_9P_CCW,
1674     .parent        = TYPE_VIRTIO_CCW_DEVICE,
1675     .instance_size = sizeof(V9fsCCWState),
1676     .instance_init = virtio_ccw_9p_instance_init,
1677     .class_init    = virtio_ccw_9p_class_init,
1678 };
1679 #endif
1680
1681 #ifdef CONFIG_VHOST_VSOCK
1682
1683 static Property vhost_vsock_ccw_properties[] = {
1684     DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
1685     DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
1686                        VIRTIO_CCW_MAX_REV),
1687     DEFINE_PROP_END_OF_LIST(),
1688 };
1689
1690 static void vhost_vsock_ccw_realize(VirtioCcwDevice *ccw_dev, Error **errp)
1691 {
1692     VHostVSockCCWState *dev = VHOST_VSOCK_CCW(ccw_dev);
1693     DeviceState *vdev = DEVICE(&dev->vdev);
1694     Error *err = NULL;
1695
1696     qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
1697     object_property_set_bool(OBJECT(vdev), true, "realized", &err);
1698     if (err) {
1699         error_propagate(errp, err);
1700     }
1701 }
1702
1703 static void vhost_vsock_ccw_class_init(ObjectClass *klass, void *data)
1704 {
1705     DeviceClass *dc = DEVICE_CLASS(klass);
1706     VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
1707
1708     k->realize = vhost_vsock_ccw_realize;
1709     k->exit = virtio_ccw_exit;
1710     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
1711     dc->props = vhost_vsock_ccw_properties;
1712     dc->reset = virtio_ccw_reset;
1713 }
1714
1715 static void vhost_vsock_ccw_instance_init(Object *obj)
1716 {
1717     VHostVSockCCWState *dev = VHOST_VSOCK_CCW(obj);
1718
1719     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
1720                                 TYPE_VHOST_VSOCK);
1721 }
1722
1723 static const TypeInfo vhost_vsock_ccw_info = {
1724     .name          = TYPE_VHOST_VSOCK_CCW,
1725     .parent        = TYPE_VIRTIO_CCW_DEVICE,
1726     .instance_size = sizeof(VHostVSockCCWState),
1727     .instance_init = vhost_vsock_ccw_instance_init,
1728     .class_init    = vhost_vsock_ccw_class_init,
1729 };
1730 #endif
1731
1732 static void virtio_ccw_register(void)
1733 {
1734     type_register_static(&virtio_ccw_bus_info);
1735     type_register_static(&virtio_ccw_device_info);
1736     type_register_static(&virtio_ccw_serial);
1737     type_register_static(&virtio_ccw_blk);
1738     type_register_static(&virtio_ccw_net);
1739     type_register_static(&virtio_ccw_balloon);
1740     type_register_static(&virtio_ccw_scsi);
1741 #ifdef CONFIG_VHOST_SCSI
1742     type_register_static(&vhost_ccw_scsi);
1743 #endif
1744     type_register_static(&virtio_ccw_rng);
1745 #ifdef CONFIG_VIRTFS
1746     type_register_static(&virtio_ccw_9p_info);
1747 #endif
1748 #ifdef CONFIG_VHOST_VSOCK
1749     type_register_static(&vhost_vsock_ccw_info);
1750 #endif
1751 }
1752
1753 type_init(virtio_ccw_register)