hw/s390x/s390-virtio-bus.c

   1 /*
   2  * QEMU S390 virtio target
   3  *
   4  * Copyright (c) 2009 Alexander Graf <agraf@suse.de>
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include "hw/hw.h"
  21 #include "block/block.h"
  22 #include "sysemu/sysemu.h"
  23 #include "hw/boards.h"
  24 #include "monitor/monitor.h"
  25 #include "hw/loader.h"
  26 #include "elf.h"
  27 #include "hw/virtio/virtio.h"
  28 #include "hw/virtio/virtio-rng.h"
  29 #include "hw/virtio/virtio-serial.h"
  30 #include "hw/virtio/virtio-net.h"
  31 #include "hw/virtio/vhost-scsi.h"
  32 #include "hw/sysbus.h"
  33 #include "sysemu/kvm.h"
  34
  35 #include "hw/s390x/s390-virtio-bus.h"
  36 #include "hw/virtio/virtio-bus.h"
  37
  38 /* #define DEBUG_S390 */
  39
  40 #ifdef DEBUG_S390
  41 #define DPRINTF(fmt, ...) \
  42     do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0)
  43 #else
  44 #define DPRINTF(fmt, ...) \
  45     do { } while (0)
  46 #endif
  47
  48 static void virtio_s390_bus_new(VirtioBusState *bus, size_t bus_size,
  49                                 VirtIOS390Device *dev);
  50
  51 static const TypeInfo s390_virtio_bus_info = {
  52     .name = TYPE_S390_VIRTIO_BUS,
  53     .parent = TYPE_BUS,
  54     .instance_size = sizeof(VirtIOS390Bus),
  55 };
  56
  57 static ram_addr_t s390_virtio_device_num_vq(VirtIOS390Device *dev);
  58
  59 /* length of VirtIO device pages */
  60 const hwaddr virtio_size = S390_DEVICE_PAGES * TARGET_PAGE_SIZE;
  61
  62 static void s390_virtio_bus_reset(void *opaque)
  63 {
  64     VirtIOS390Bus *bus = opaque;
  65     bus->next_ring = bus->dev_page + TARGET_PAGE_SIZE;
  66 }
  67
  68 void s390_virtio_reset_idx(VirtIOS390Device *dev)
  69 {
  70     int i;
  71     hwaddr idx_addr;
  72     uint8_t num_vq;
  73
  74     num_vq = s390_virtio_device_num_vq(dev);
  75     for (i = 0; i < num_vq; i++) {
  76         idx_addr = virtio_queue_get_avail_addr(dev->vdev, i) +
  77             VIRTIO_VRING_AVAIL_IDX_OFFS;
  78         stw_phys(&address_space_memory, idx_addr, 0);
  79         idx_addr = virtio_queue_get_used_addr(dev->vdev, i) +
  80             VIRTIO_VRING_USED_IDX_OFFS;
  81         stw_phys(&address_space_memory, idx_addr, 0);
  82     }
  83 }
  84
  85 VirtIOS390Bus *s390_virtio_bus_init(ram_addr_t *ram_size)
  86 {
  87     VirtIOS390Bus *bus;
  88     BusState *_bus;
  89     DeviceState *dev;
  90
  91     /* Create bridge device */
  92     dev = qdev_create(NULL, "s390-virtio-bridge");
  93     qdev_init_nofail(dev);
  94
  95     /* Create bus on bridge device */
  96
  97     _bus = qbus_create(TYPE_S390_VIRTIO_BUS, dev, "s390-virtio");
  98     bus = DO_UPCAST(VirtIOS390Bus, bus, _bus);
  99
 100     bus->dev_page = *ram_size;
 101     bus->dev_offs = bus->dev_page;
 102     bus->next_ring = bus->dev_page + TARGET_PAGE_SIZE;
 103
 104     /* Enable hotplugging */
 105     _bus->allow_hotplug = 1;
 106
 107     /* Allocate RAM for VirtIO device pages (descriptors, queues, rings) */
 108     *ram_size += S390_DEVICE_PAGES * TARGET_PAGE_SIZE;
 109
 110     qemu_register_reset(s390_virtio_bus_reset, bus);
 111     return bus;
 112 }
 113
 114 static int s390_virtio_device_init(VirtIOS390Device *dev, VirtIODevice *vdev)
 115 {
 116     VirtIOS390Bus *bus;
 117     int dev_len;
 118
 119     bus = DO_UPCAST(VirtIOS390Bus, bus, dev->qdev.parent_bus);
 120     dev->vdev = vdev;
 121     dev->dev_offs = bus->dev_offs;
 122     dev->feat_len = sizeof(uint32_t); /* always keep 32 bits features */
 123
 124     dev_len = VIRTIO_DEV_OFFS_CONFIG;
 125     dev_len += s390_virtio_device_num_vq(dev) * VIRTIO_VQCONFIG_LEN;
 126     dev_len += dev->feat_len * 2;
 127     dev_len += virtio_bus_get_vdev_config_len(&dev->bus);
 128
 129     bus->dev_offs += dev_len;
 130
 131     dev->host_features = virtio_bus_get_vdev_features(&dev->bus,
 132                                                       dev->host_features);
 133     s390_virtio_device_sync(dev);
 134     s390_virtio_reset_idx(dev);
 135     if (dev->qdev.hotplugged) {
 136         s390_virtio_irq(VIRTIO_PARAM_DEV_ADD, dev->dev_offs);
 137     }
 138
 139     return 0;
 140 }
 141
 142 static int s390_virtio_net_init(VirtIOS390Device *s390_dev)
 143 {
 144     DeviceState *qdev = DEVICE(s390_dev);
 145     VirtIONetS390 *dev = VIRTIO_NET_S390(s390_dev);
 146     DeviceState *vdev = DEVICE(&dev->vdev);
 147
 148     virtio_net_set_config_size(&dev->vdev, s390_dev->host_features);
 149     virtio_net_set_netclient_name(&dev->vdev, qdev->id,
 150                                   object_get_typename(OBJECT(qdev)));
 151     qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
 152     if (qdev_init(vdev) < 0) {
 153         return -1;
 154     }
 155
 156     return s390_virtio_device_init(s390_dev, VIRTIO_DEVICE(vdev));
 157 }
 158
 159 static void s390_virtio_net_instance_init(Object *obj)
 160 {
 161     VirtIONetS390 *dev = VIRTIO_NET_S390(obj);
 162     object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_NET);
 163     object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
 164 }
 165
 166 static int s390_virtio_blk_init(VirtIOS390Device *s390_dev)
 167 {
 168     VirtIOBlkS390 *dev = VIRTIO_BLK_S390(s390_dev);
 169     DeviceState *vdev = DEVICE(&dev->vdev);
 170     qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
 171     if (qdev_init(vdev) < 0) {
 172         return -1;
 173     }
 174     return s390_virtio_device_init(s390_dev, VIRTIO_DEVICE(vdev));
 175 }
 176
 177 static void s390_virtio_blk_instance_init(Object *obj)
 178 {
 179     VirtIOBlkS390 *dev = VIRTIO_BLK_S390(obj);
 180     object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_BLK);
 181     object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
 182     object_unref(OBJECT(&dev->vdev));
 183     qdev_alias_all_properties(DEVICE(&dev->vdev), obj);
 184     object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev),"iothread",
 185                               &error_abort);
 186 }
 187
 188 static int s390_virtio_serial_init(VirtIOS390Device *s390_dev)
 189 {
 190     VirtIOSerialS390 *dev = VIRTIO_SERIAL_S390(s390_dev);
 191     DeviceState *vdev = DEVICE(&dev->vdev);
 192     DeviceState *qdev = DEVICE(s390_dev);
 193     VirtIOS390Bus *bus;
 194     int r;
 195     char *bus_name;
 196
 197     bus = DO_UPCAST(VirtIOS390Bus, bus, qdev->parent_bus);
 198
 199     /*
 200      * For command line compatibility, this sets the virtio-serial-device bus
 201      * name as before.
 202      */
 203     if (qdev->id) {
 204         bus_name = g_strdup_printf("%s.0", qdev->id);
 205         virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
 206         g_free(bus_name);
 207     }
 208
 209     qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
 210     if (qdev_init(vdev) < 0) {
 211         return -1;
 212     }
 213
 214     r = s390_virtio_device_init(s390_dev, VIRTIO_DEVICE(vdev));
 215     if (!r) {
 216         bus->console = s390_dev;
 217     }
 218
 219     return r;
 220 }
 221
 222 static void s390_virtio_serial_instance_init(Object *obj)
 223 {
 224     VirtIOSerialS390 *dev = VIRTIO_SERIAL_S390(obj);
 225     object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_SERIAL);
 226     object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
 227 }
 228
 229 static int s390_virtio_scsi_init(VirtIOS390Device *s390_dev)
 230 {
 231     VirtIOSCSIS390 *dev = VIRTIO_SCSI_S390(s390_dev);
 232     DeviceState *vdev = DEVICE(&dev->vdev);
 233     DeviceState *qdev = DEVICE(s390_dev);
 234     char *bus_name;
 235
 236     /*
 237      * For command line compatibility, this sets the virtio-scsi-device bus
 238      * name as before.
 239      */
 240     if (qdev->id) {
 241         bus_name = g_strdup_printf("%s.0", qdev->id);
 242         virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
 243         g_free(bus_name);
 244     }
 245
 246     qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
 247     if (qdev_init(vdev) < 0) {
 248         return -1;
 249     }
 250
 251     return s390_virtio_device_init(s390_dev, VIRTIO_DEVICE(vdev));
 252 }
 253
 254 static void s390_virtio_scsi_instance_init(Object *obj)
 255 {
 256     VirtIOSCSIS390 *dev = VIRTIO_SCSI_S390(obj);
 257     object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_SCSI);
 258     object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
 259 }
 260
 261 #ifdef CONFIG_VHOST_SCSI
 262 static int s390_vhost_scsi_init(VirtIOS390Device *s390_dev)
 263 {
 264     VHostSCSIS390 *dev = VHOST_SCSI_S390(s390_dev);
 265     DeviceState *vdev = DEVICE(&dev->vdev);
 266
 267     qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
 268     if (qdev_init(vdev) < 0) {
 269         return -1;
 270     }
 271
 272     return s390_virtio_device_init(s390_dev, VIRTIO_DEVICE(vdev));
 273 }
 274
 275 static void s390_vhost_scsi_instance_init(Object *obj)
 276 {
 277     VHostSCSIS390 *dev = VHOST_SCSI_S390(obj);
 278     object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VHOST_SCSI);
 279     object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
 280 }
 281 #endif
 282
 283
 284 static int s390_virtio_rng_init(VirtIOS390Device *s390_dev)
 285 {
 286     VirtIORNGS390 *dev = VIRTIO_RNG_S390(s390_dev);
 287     DeviceState *vdev = DEVICE(&dev->vdev);
 288
 289     qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
 290     if (qdev_init(vdev) < 0) {
 291         return -1;
 292     }
 293
 294     object_property_set_link(OBJECT(dev),
 295                              OBJECT(dev->vdev.conf.rng), "rng",
 296                              NULL);
 297
 298     return s390_virtio_device_init(s390_dev, VIRTIO_DEVICE(vdev));
 299 }
 300
 301 static void s390_virtio_rng_instance_init(Object *obj)
 302 {
 303     VirtIORNGS390 *dev = VIRTIO_RNG_S390(obj);
 304     object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_RNG);
 305     object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
 306     object_property_add_link(obj, "rng", TYPE_RNG_BACKEND,
 307                              (Object **)&dev->vdev.conf.rng,
 308                              qdev_prop_allow_set_link_before_realize,
 309                              OBJ_PROP_LINK_UNREF_ON_RELEASE, NULL);
 310 }
 311
 312 static uint64_t s390_virtio_device_vq_token(VirtIOS390Device *dev, int vq)
 313 {
 314     ram_addr_t token_off;
 315
 316     token_off = (dev->dev_offs + VIRTIO_DEV_OFFS_CONFIG) +
 317                 (vq * VIRTIO_VQCONFIG_LEN) +
 318                 VIRTIO_VQCONFIG_OFFS_TOKEN;
 319
 320     return ldq_be_phys(&address_space_memory, token_off);
 321 }
 322
 323 static ram_addr_t s390_virtio_device_num_vq(VirtIOS390Device *dev)
 324 {
 325     VirtIODevice *vdev = dev->vdev;
 326     int num_vq;
 327
 328     for (num_vq = 0; num_vq < VIRTIO_PCI_QUEUE_MAX; num_vq++) {
 329         if (!virtio_queue_get_num(vdev, num_vq)) {
 330             break;
 331         }
 332     }
 333
 334     return num_vq;
 335 }
 336
 337 static ram_addr_t s390_virtio_next_ring(VirtIOS390Bus *bus)
 338 {
 339     ram_addr_t r = bus->next_ring;
 340
 341     bus->next_ring += VIRTIO_RING_LEN;
 342     return r;
 343 }
 344
 345 void s390_virtio_device_sync(VirtIOS390Device *dev)
 346 {
 347     VirtIOS390Bus *bus = DO_UPCAST(VirtIOS390Bus, bus, dev->qdev.parent_bus);
 348     ram_addr_t cur_offs;
 349     uint8_t num_vq;
 350     int i;
 351
 352     virtio_reset(dev->vdev);
 353
 354     /* Sync dev space */
 355     stb_phys(&address_space_memory,
 356              dev->dev_offs + VIRTIO_DEV_OFFS_TYPE, dev->vdev->device_id);
 357
 358     stb_phys(&address_space_memory,
 359              dev->dev_offs + VIRTIO_DEV_OFFS_NUM_VQ,
 360              s390_virtio_device_num_vq(dev));
 361     stb_phys(&address_space_memory,
 362              dev->dev_offs + VIRTIO_DEV_OFFS_FEATURE_LEN, dev->feat_len);
 363
 364     stb_phys(&address_space_memory,
 365              dev->dev_offs + VIRTIO_DEV_OFFS_CONFIG_LEN, dev->vdev->config_len);
 366
 367     num_vq = s390_virtio_device_num_vq(dev);
 368     stb_phys(&address_space_memory,
 369              dev->dev_offs + VIRTIO_DEV_OFFS_NUM_VQ, num_vq);
 370
 371     /* Sync virtqueues */
 372     for (i = 0; i < num_vq; i++) {
 373         ram_addr_t vq = (dev->dev_offs + VIRTIO_DEV_OFFS_CONFIG) +
 374                         (i * VIRTIO_VQCONFIG_LEN);
 375         ram_addr_t vring;
 376
 377         vring = s390_virtio_next_ring(bus);
 378         virtio_queue_set_addr(dev->vdev, i, vring);
 379         virtio_queue_set_vector(dev->vdev, i, i);
 380         stq_be_phys(&address_space_memory,
 381                     vq + VIRTIO_VQCONFIG_OFFS_ADDRESS, vring);
 382         stw_be_phys(&address_space_memory,
 383                     vq + VIRTIO_VQCONFIG_OFFS_NUM,
 384                     virtio_queue_get_num(dev->vdev, i));
 385     }
 386
 387     cur_offs = dev->dev_offs;
 388     cur_offs += VIRTIO_DEV_OFFS_CONFIG;
 389     cur_offs += num_vq * VIRTIO_VQCONFIG_LEN;
 390
 391     /* Sync feature bitmap */
 392     stl_le_phys(&address_space_memory, cur_offs, dev->host_features);
 393
 394     dev->feat_offs = cur_offs + dev->feat_len;
 395     cur_offs += dev->feat_len * 2;
 396
 397     /* Sync config space */
 398     virtio_bus_get_vdev_config(&dev->bus, dev->vdev->config);
 399
 400     cpu_physical_memory_write(cur_offs,
 401                               dev->vdev->config, dev->vdev->config_len);
 402     cur_offs += dev->vdev->config_len;
 403 }
 404
 405 void s390_virtio_device_update_status(VirtIOS390Device *dev)
 406 {
 407     VirtIODevice *vdev = dev->vdev;
 408     uint32_t features;
 409
 410     virtio_set_status(vdev, ldub_phys(&address_space_memory,
 411                                       dev->dev_offs + VIRTIO_DEV_OFFS_STATUS));
 412
 413     /* Update guest supported feature bitmap */
 414
 415     features = bswap32(ldl_be_phys(&address_space_memory, dev->feat_offs));
 416     virtio_set_features(vdev, features);
 417 }
 418
 419 VirtIOS390Device *s390_virtio_bus_console(VirtIOS390Bus *bus)
 420 {
 421     return bus->console;
 422 }
 423
 424 /* Find a device by vring address */
 425 VirtIOS390Device *s390_virtio_bus_find_vring(VirtIOS390Bus *bus,
 426                                              ram_addr_t mem,
 427                                              int *vq_num)
 428 {
 429     BusChild *kid;
 430     int i;
 431
 432     QTAILQ_FOREACH(kid, &bus->bus.children, sibling) {
 433         VirtIOS390Device *dev = (VirtIOS390Device *)kid->child;
 434
 435         for(i = 0; i < VIRTIO_PCI_QUEUE_MAX; i++) {
 436             if (!virtio_queue_get_addr(dev->vdev, i))
 437                 break;
 438             if (virtio_queue_get_addr(dev->vdev, i) == mem) {
 439                 if (vq_num) {
 440                     *vq_num = i;
 441                 }
 442                 return dev;
 443             }
 444         }
 445     }
 446
 447     return NULL;
 448 }
 449
 450 /* Find a device by device descriptor location */
 451 VirtIOS390Device *s390_virtio_bus_find_mem(VirtIOS390Bus *bus, ram_addr_t mem)
 452 {
 453     BusChild *kid;
 454
 455     QTAILQ_FOREACH(kid, &bus->bus.children, sibling) {
 456         VirtIOS390Device *dev = (VirtIOS390Device *)kid->child;
 457         if (dev->dev_offs == mem) {
 458             return dev;
 459         }
 460     }
 461
 462     return NULL;
 463 }
 464
 465 /* DeviceState to VirtIOS390Device. Note: used on datapath,
 466  * be careful and test performance if you change this.
 467  */
 468 static inline VirtIOS390Device *to_virtio_s390_device_fast(DeviceState *d)
 469 {
 470     return container_of(d, VirtIOS390Device, qdev);
 471 }
 472
 473 /* DeviceState to VirtIOS390Device. TODO: use QOM. */
 474 static inline VirtIOS390Device *to_virtio_s390_device(DeviceState *d)
 475 {
 476     return container_of(d, VirtIOS390Device, qdev);
 477 }
 478
 479 static void virtio_s390_notify(DeviceState *d, uint16_t vector)
 480 {
 481     VirtIOS390Device *dev = to_virtio_s390_device_fast(d);
 482     uint64_t token = s390_virtio_device_vq_token(dev, vector);
 483
 484     s390_virtio_irq(0, token);
 485 }
 486
 487 static unsigned virtio_s390_get_features(DeviceState *d)
 488 {
 489     VirtIOS390Device *dev = to_virtio_s390_device(d);
 490     return dev->host_features;
 491 }
 492
 493 /**************** S390 Virtio Bus Device Descriptions *******************/
 494
 495 static Property s390_virtio_net_properties[] = {
 496     DEFINE_NIC_PROPERTIES(VirtIONetS390, vdev.nic_conf),
 497     DEFINE_VIRTIO_COMMON_FEATURES(VirtIOS390Device, host_features),
 498     DEFINE_VIRTIO_NET_FEATURES(VirtIOS390Device, host_features),
 499     DEFINE_VIRTIO_NET_PROPERTIES(VirtIONetS390, vdev.net_conf),
 500     DEFINE_PROP_END_OF_LIST(),
 501 };
 502
 503 static void s390_virtio_net_class_init(ObjectClass *klass, void *data)
 504 {
 505     DeviceClass *dc = DEVICE_CLASS(klass);
 506     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
 507
 508     k->init = s390_virtio_net_init;
 509     dc->props = s390_virtio_net_properties;
 510 }
 511
 512 static const TypeInfo s390_virtio_net = {
 513     .name          = TYPE_VIRTIO_NET_S390,
 514     .parent        = TYPE_VIRTIO_S390_DEVICE,
 515     .instance_size = sizeof(VirtIONetS390),
 516     .instance_init = s390_virtio_net_instance_init,
 517     .class_init    = s390_virtio_net_class_init,
 518 };
 519
 520 static void s390_virtio_blk_class_init(ObjectClass *klass, void *data)
 521 {
 522     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
 523
 524     k->init = s390_virtio_blk_init;
 525 }
 526
 527 static const TypeInfo s390_virtio_blk = {
 528     .name          = "virtio-blk-s390",
 529     .parent        = TYPE_VIRTIO_S390_DEVICE,
 530     .instance_size = sizeof(VirtIOBlkS390),
 531     .instance_init = s390_virtio_blk_instance_init,
 532     .class_init    = s390_virtio_blk_class_init,
 533 };
 534
 535 static Property s390_virtio_serial_properties[] = {
 536     DEFINE_VIRTIO_SERIAL_PROPERTIES(VirtIOSerialS390, vdev.serial),
 537     DEFINE_PROP_END_OF_LIST(),
 538 };
 539
 540 static void s390_virtio_serial_class_init(ObjectClass *klass, void *data)
 541 {
 542     DeviceClass *dc = DEVICE_CLASS(klass);
 543     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
 544
 545     k->init = s390_virtio_serial_init;
 546     dc->props = s390_virtio_serial_properties;
 547 }
 548
 549 static const TypeInfo s390_virtio_serial = {
 550     .name          = TYPE_VIRTIO_SERIAL_S390,
 551     .parent        = TYPE_VIRTIO_S390_DEVICE,
 552     .instance_size = sizeof(VirtIOSerialS390),
 553     .instance_init = s390_virtio_serial_instance_init,
 554     .class_init    = s390_virtio_serial_class_init,
 555 };
 556
 557 static Property s390_virtio_rng_properties[] = {
 558     DEFINE_VIRTIO_COMMON_FEATURES(VirtIOS390Device, host_features),
 559     DEFINE_VIRTIO_RNG_PROPERTIES(VirtIORNGS390, vdev.conf),
 560     DEFINE_PROP_END_OF_LIST(),
 561 };
 562
 563 static void s390_virtio_rng_class_init(ObjectClass *klass, void *data)
 564 {
 565     DeviceClass *dc = DEVICE_CLASS(klass);
 566     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
 567
 568     k->init = s390_virtio_rng_init;
 569     dc->props = s390_virtio_rng_properties;
 570 }
 571
 572 static const TypeInfo s390_virtio_rng = {
 573     .name          = TYPE_VIRTIO_RNG_S390,
 574     .parent        = TYPE_VIRTIO_S390_DEVICE,
 575     .instance_size = sizeof(VirtIORNGS390),
 576     .instance_init = s390_virtio_rng_instance_init,
 577     .class_init    = s390_virtio_rng_class_init,
 578 };
 579
 580 static int s390_virtio_busdev_init(DeviceState *dev)
 581 {
 582     VirtIOS390Device *_dev = (VirtIOS390Device *)dev;
 583     VirtIOS390DeviceClass *_info = VIRTIO_S390_DEVICE_GET_CLASS(dev);
 584
 585     virtio_s390_bus_new(&_dev->bus, sizeof(_dev->bus), _dev);
 586
 587     return _info->init(_dev);
 588 }
 589
 590 static void s390_virtio_busdev_reset(DeviceState *dev)
 591 {
 592     VirtIOS390Device *_dev = (VirtIOS390Device *)dev;
 593
 594     virtio_reset(_dev->vdev);
 595 }
 596
 597 static void virtio_s390_device_class_init(ObjectClass *klass, void *data)
 598 {
 599     DeviceClass *dc = DEVICE_CLASS(klass);
 600
 601     dc->init = s390_virtio_busdev_init;
 602     dc->bus_type = TYPE_S390_VIRTIO_BUS;
 603     dc->unplug = qdev_simple_unplug_cb;
 604     dc->reset = s390_virtio_busdev_reset;
 605 }
 606
 607 static const TypeInfo virtio_s390_device_info = {
 608     .name = TYPE_VIRTIO_S390_DEVICE,
 609     .parent = TYPE_DEVICE,
 610     .instance_size = sizeof(VirtIOS390Device),
 611     .class_init = virtio_s390_device_class_init,
 612     .class_size = sizeof(VirtIOS390DeviceClass),
 613     .abstract = true,
 614 };
 615
 616 static Property s390_virtio_scsi_properties[] = {
 617     DEFINE_VIRTIO_SCSI_PROPERTIES(VirtIOSCSIS390, vdev.parent_obj.conf),
 618     DEFINE_VIRTIO_COMMON_FEATURES(VirtIOS390Device, host_features),
 619     DEFINE_VIRTIO_SCSI_FEATURES(VirtIOS390Device, host_features),
 620     DEFINE_PROP_END_OF_LIST(),
 621 };
 622
 623 static void s390_virtio_scsi_class_init(ObjectClass *klass, void *data)
 624 {
 625     DeviceClass *dc = DEVICE_CLASS(klass);
 626     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
 627
 628     k->init = s390_virtio_scsi_init;
 629     dc->props = s390_virtio_scsi_properties;
 630 }
 631
 632 static const TypeInfo s390_virtio_scsi = {
 633     .name          = TYPE_VIRTIO_SCSI_S390,
 634     .parent        = TYPE_VIRTIO_S390_DEVICE,
 635     .instance_size = sizeof(VirtIOSCSIS390),
 636     .instance_init = s390_virtio_scsi_instance_init,
 637     .class_init    = s390_virtio_scsi_class_init,
 638 };
 639
 640 #ifdef CONFIG_VHOST_SCSI
 641 static Property s390_vhost_scsi_properties[] = {
 642     DEFINE_VIRTIO_COMMON_FEATURES(VirtIOS390Device, host_features),
 643     DEFINE_VHOST_SCSI_PROPERTIES(VHostSCSIS390, vdev.parent_obj.conf),
 644     DEFINE_PROP_END_OF_LIST(),
 645 };
 646
 647 static void s390_vhost_scsi_class_init(ObjectClass *klass, void *data)
 648 {
 649     DeviceClass *dc = DEVICE_CLASS(klass);
 650     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
 651
 652     k->init = s390_vhost_scsi_init;
 653     dc->props = s390_vhost_scsi_properties;
 654 }
 655
 656 static const TypeInfo s390_vhost_scsi = {
 657     .name          = TYPE_VHOST_SCSI_S390,
 658     .parent        = TYPE_VIRTIO_S390_DEVICE,
 659     .instance_size = sizeof(VHostSCSIS390),
 660     .instance_init = s390_vhost_scsi_instance_init,
 661     .class_init    = s390_vhost_scsi_class_init,
 662 };
 663 #endif
 664
 665 /***************** S390 Virtio Bus Bridge Device *******************/
 666 /* Only required to have the virtio bus as child in the system bus */
 667
 668 static int s390_virtio_bridge_init(SysBusDevice *dev)
 669 {
 670     /* nothing */
 671     return 0;
 672 }
 673
 674 static void s390_virtio_bridge_class_init(ObjectClass *klass, void *data)
 675 {
 676     SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 677
 678     k->init = s390_virtio_bridge_init;
 679 }
 680
 681 static const TypeInfo s390_virtio_bridge_info = {
 682     .name          = "s390-virtio-bridge",
 683     .parent        = TYPE_SYS_BUS_DEVICE,
 684     .instance_size = sizeof(SysBusDevice),
 685     .class_init    = s390_virtio_bridge_class_init,
 686 };
 687
 688 /* virtio-s390-bus */
 689
 690 static void virtio_s390_bus_new(VirtioBusState *bus, size_t bus_size,
 691                                 VirtIOS390Device *dev)
 692 {
 693     DeviceState *qdev = DEVICE(dev);
 694     BusState *qbus;
 695     char virtio_bus_name[] = "virtio-bus";
 696
 697     qbus_create_inplace(bus, bus_size, TYPE_VIRTIO_S390_BUS,
 698                         qdev, virtio_bus_name);
 699     qbus = BUS(bus);
 700     qbus->allow_hotplug = 1;
 701 }
 702
 703 static void virtio_s390_bus_class_init(ObjectClass *klass, void *data)
 704 {
 705     VirtioBusClass *k = VIRTIO_BUS_CLASS(klass);
 706     BusClass *bus_class = BUS_CLASS(klass);
 707     bus_class->max_dev = 1;
 708     k->notify = virtio_s390_notify;
 709     k->get_features = virtio_s390_get_features;
 710 }
 711
 712 static const TypeInfo virtio_s390_bus_info = {
 713     .name          = TYPE_VIRTIO_S390_BUS,
 714     .parent        = TYPE_VIRTIO_BUS,
 715     .instance_size = sizeof(VirtioS390BusState),
 716     .class_init    = virtio_s390_bus_class_init,
 717 };
 718
 719 static void s390_virtio_register_types(void)
 720 {
 721     type_register_static(&virtio_s390_bus_info);
 722     type_register_static(&s390_virtio_bus_info);
 723     type_register_static(&virtio_s390_device_info);
 724     type_register_static(&s390_virtio_serial);
 725     type_register_static(&s390_virtio_blk);
 726     type_register_static(&s390_virtio_net);
 727     type_register_static(&s390_virtio_scsi);
 728 #ifdef CONFIG_VHOST_SCSI
 729     type_register_static(&s390_vhost_scsi);
 730 #endif
 731     type_register_static(&s390_virtio_rng);
 732     type_register_static(&s390_virtio_bridge_info);
 733 }
 734
 735 type_init(s390_virtio_register_types)