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 #define VIRTIO_EXT_CODE   0x2603
  49
  50 static void virtio_s390_bus_new(VirtioBusState *bus, size_t bus_size,
  51                                 VirtIOS390Device *dev);
  52
  53 static const TypeInfo s390_virtio_bus_info = {
  54     .name = TYPE_S390_VIRTIO_BUS,
  55     .parent = TYPE_BUS,
  56     .instance_size = sizeof(VirtIOS390Bus),
  57 };
  58
  59 static ram_addr_t s390_virtio_device_num_vq(VirtIOS390Device *dev);
  60
  61 /* length of VirtIO device pages */
  62 const hwaddr virtio_size = S390_DEVICE_PAGES * TARGET_PAGE_SIZE;
  63
  64 static void s390_virtio_bus_reset(void *opaque)
  65 {
  66     VirtIOS390Bus *bus = opaque;
  67     bus->next_ring = bus->dev_page + TARGET_PAGE_SIZE;
  68 }
  69
  70 void s390_virtio_reset_idx(VirtIOS390Device *dev)
  71 {
  72     int i;
  73     hwaddr idx_addr;
  74     uint8_t num_vq;
  75
  76     num_vq = s390_virtio_device_num_vq(dev);
  77     for (i = 0; i < num_vq; i++) {
  78         idx_addr = virtio_queue_get_avail_addr(dev->vdev, i) +
  79             VIRTIO_VRING_AVAIL_IDX_OFFS;
  80         stw_phys(&address_space_memory, idx_addr, 0);
  81         idx_addr = virtio_queue_get_used_addr(dev->vdev, i) +
  82             VIRTIO_VRING_USED_IDX_OFFS;
  83         stw_phys(&address_space_memory, idx_addr, 0);
  84     }
  85 }
  86
  87 VirtIOS390Bus *s390_virtio_bus_init(ram_addr_t *ram_size)
  88 {
  89     VirtIOS390Bus *bus;
  90     BusState *_bus;
  91     DeviceState *dev;
  92
  93     /* Create bridge device */
  94     dev = qdev_create(NULL, "s390-virtio-bridge");
  95     qdev_init_nofail(dev);
  96
  97     /* Create bus on bridge device */
  98
  99     _bus = qbus_create(TYPE_S390_VIRTIO_BUS, dev, "s390-virtio");
 100     bus = DO_UPCAST(VirtIOS390Bus, bus, _bus);
 101
 102     bus->dev_page = *ram_size;
 103     bus->dev_offs = bus->dev_page;
 104     bus->next_ring = bus->dev_page + TARGET_PAGE_SIZE;
 105
 106     /* Enable hotplugging */
 107     _bus->allow_hotplug = 1;
 108
 109     /* Allocate RAM for VirtIO device pages (descriptors, queues, rings) */
 110     *ram_size += S390_DEVICE_PAGES * TARGET_PAGE_SIZE;
 111
 112     qemu_register_reset(s390_virtio_bus_reset, bus);
 113     return bus;
 114 }
 115
 116 static void s390_virtio_irq(S390CPU *cpu, int config_change, uint64_t token)
 117 {
 118     if (kvm_enabled()) {
 119         kvm_s390_virtio_irq(cpu, config_change, token);
 120     } else {
 121         cpu_inject_ext(cpu, VIRTIO_EXT_CODE, config_change, token);
 122     }
 123 }
 124
 125 static int s390_virtio_device_init(VirtIOS390Device *dev, VirtIODevice *vdev)
 126 {
 127     VirtIOS390Bus *bus;
 128     int dev_len;
 129
 130     bus = DO_UPCAST(VirtIOS390Bus, bus, dev->qdev.parent_bus);
 131     dev->vdev = vdev;
 132     dev->dev_offs = bus->dev_offs;
 133     dev->feat_len = sizeof(uint32_t); /* always keep 32 bits features */
 134
 135     dev_len = VIRTIO_DEV_OFFS_CONFIG;
 136     dev_len += s390_virtio_device_num_vq(dev) * VIRTIO_VQCONFIG_LEN;
 137     dev_len += dev->feat_len * 2;
 138     dev_len += virtio_bus_get_vdev_config_len(&dev->bus);
 139
 140     bus->dev_offs += dev_len;
 141
 142     dev->host_features = virtio_bus_get_vdev_features(&dev->bus,
 143                                                       dev->host_features);
 144     s390_virtio_device_sync(dev);
 145     s390_virtio_reset_idx(dev);
 146     if (dev->qdev.hotplugged) {
 147         S390CPU *cpu = s390_cpu_addr2state(0);
 148         s390_virtio_irq(cpu, VIRTIO_PARAM_DEV_ADD, dev->dev_offs);
 149     }
 150
 151     return 0;
 152 }
 153
 154 static int s390_virtio_net_init(VirtIOS390Device *s390_dev)
 155 {
 156     DeviceState *qdev = DEVICE(s390_dev);
 157     VirtIONetS390 *dev = VIRTIO_NET_S390(s390_dev);
 158     DeviceState *vdev = DEVICE(&dev->vdev);
 159
 160     virtio_net_set_config_size(&dev->vdev, s390_dev->host_features);
 161     virtio_net_set_netclient_name(&dev->vdev, qdev->id,
 162                                   object_get_typename(OBJECT(qdev)));
 163     qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
 164     if (qdev_init(vdev) < 0) {
 165         return -1;
 166     }
 167
 168     return s390_virtio_device_init(s390_dev, VIRTIO_DEVICE(vdev));
 169 }
 170
 171 static void s390_virtio_net_instance_init(Object *obj)
 172 {
 173     VirtIONetS390 *dev = VIRTIO_NET_S390(obj);
 174     object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_NET);
 175     object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
 176 }
 177
 178 static int s390_virtio_blk_init(VirtIOS390Device *s390_dev)
 179 {
 180     VirtIOBlkS390 *dev = VIRTIO_BLK_S390(s390_dev);
 181     DeviceState *vdev = DEVICE(&dev->vdev);
 182     virtio_blk_set_conf(vdev, &(dev->blk));
 183     qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
 184     if (qdev_init(vdev) < 0) {
 185         return -1;
 186     }
 187     return s390_virtio_device_init(s390_dev, VIRTIO_DEVICE(vdev));
 188 }
 189
 190 static void s390_virtio_blk_instance_init(Object *obj)
 191 {
 192     VirtIOBlkS390 *dev = VIRTIO_BLK_S390(obj);
 193     object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_BLK);
 194     object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
 195 }
 196
 197 static int s390_virtio_serial_init(VirtIOS390Device *s390_dev)
 198 {
 199     VirtIOSerialS390 *dev = VIRTIO_SERIAL_S390(s390_dev);
 200     DeviceState *vdev = DEVICE(&dev->vdev);
 201     DeviceState *qdev = DEVICE(s390_dev);
 202     VirtIOS390Bus *bus;
 203     int r;
 204     char *bus_name;
 205
 206     bus = DO_UPCAST(VirtIOS390Bus, bus, qdev->parent_bus);
 207
 208     /*
 209      * For command line compatibility, this sets the virtio-serial-device bus
 210      * name as before.
 211      */
 212     if (qdev->id) {
 213         bus_name = g_strdup_printf("%s.0", qdev->id);
 214         virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
 215         g_free(bus_name);
 216     }
 217
 218     qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
 219     if (qdev_init(vdev) < 0) {
 220         return -1;
 221     }
 222
 223     r = s390_virtio_device_init(s390_dev, VIRTIO_DEVICE(vdev));
 224     if (!r) {
 225         bus->console = s390_dev;
 226     }
 227
 228     return r;
 229 }
 230
 231 static void s390_virtio_serial_instance_init(Object *obj)
 232 {
 233     VirtIOSerialS390 *dev = VIRTIO_SERIAL_S390(obj);
 234     object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_SERIAL);
 235     object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
 236 }
 237
 238 static int s390_virtio_scsi_init(VirtIOS390Device *s390_dev)
 239 {
 240     VirtIOSCSIS390 *dev = VIRTIO_SCSI_S390(s390_dev);
 241     DeviceState *vdev = DEVICE(&dev->vdev);
 242     DeviceState *qdev = DEVICE(s390_dev);
 243     char *bus_name;
 244
 245     /*
 246      * For command line compatibility, this sets the virtio-scsi-device bus
 247      * name as before.
 248      */
 249     if (qdev->id) {
 250         bus_name = g_strdup_printf("%s.0", qdev->id);
 251         virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
 252         g_free(bus_name);
 253     }
 254
 255     qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
 256     if (qdev_init(vdev) < 0) {
 257         return -1;
 258     }
 259
 260     return s390_virtio_device_init(s390_dev, VIRTIO_DEVICE(vdev));
 261 }
 262
 263 static void s390_virtio_scsi_instance_init(Object *obj)
 264 {
 265     VirtIOSCSIS390 *dev = VIRTIO_SCSI_S390(obj);
 266     object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_SCSI);
 267     object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
 268 }
 269
 270 #ifdef CONFIG_VHOST_SCSI
 271 static int s390_vhost_scsi_init(VirtIOS390Device *s390_dev)
 272 {
 273     VHostSCSIS390 *dev = VHOST_SCSI_S390(s390_dev);
 274     DeviceState *vdev = DEVICE(&dev->vdev);
 275
 276     qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
 277     if (qdev_init(vdev) < 0) {
 278         return -1;
 279     }
 280
 281     return s390_virtio_device_init(s390_dev, VIRTIO_DEVICE(vdev));
 282 }
 283
 284 static void s390_vhost_scsi_instance_init(Object *obj)
 285 {
 286     VHostSCSIS390 *dev = VHOST_SCSI_S390(obj);
 287     object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VHOST_SCSI);
 288     object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
 289 }
 290 #endif
 291
 292
 293 static int s390_virtio_rng_init(VirtIOS390Device *s390_dev)
 294 {
 295     VirtIORNGS390 *dev = VIRTIO_RNG_S390(s390_dev);
 296     DeviceState *vdev = DEVICE(&dev->vdev);
 297
 298     qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
 299     if (qdev_init(vdev) < 0) {
 300         return -1;
 301     }
 302
 303     object_property_set_link(OBJECT(dev),
 304                              OBJECT(dev->vdev.conf.rng), "rng",
 305                              NULL);
 306
 307     return s390_virtio_device_init(s390_dev, VIRTIO_DEVICE(vdev));
 308 }
 309
 310 static void s390_virtio_rng_instance_init(Object *obj)
 311 {
 312     VirtIORNGS390 *dev = VIRTIO_RNG_S390(obj);
 313     object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_RNG);
 314     object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
 315     object_property_add_link(obj, "rng", TYPE_RNG_BACKEND,
 316                              (Object **)&dev->vdev.conf.rng, NULL);
 317 }
 318
 319 static uint64_t s390_virtio_device_vq_token(VirtIOS390Device *dev, int vq)
 320 {
 321     ram_addr_t token_off;
 322
 323     token_off = (dev->dev_offs + VIRTIO_DEV_OFFS_CONFIG) +
 324                 (vq * VIRTIO_VQCONFIG_LEN) +
 325                 VIRTIO_VQCONFIG_OFFS_TOKEN;
 326
 327     return ldq_be_phys(&address_space_memory, token_off);
 328 }
 329
 330 static ram_addr_t s390_virtio_device_num_vq(VirtIOS390Device *dev)
 331 {
 332     VirtIODevice *vdev = dev->vdev;
 333     int num_vq;
 334
 335     for (num_vq = 0; num_vq < VIRTIO_PCI_QUEUE_MAX; num_vq++) {
 336         if (!virtio_queue_get_num(vdev, num_vq)) {
 337             break;
 338         }
 339     }
 340
 341     return num_vq;
 342 }
 343
 344 static ram_addr_t s390_virtio_next_ring(VirtIOS390Bus *bus)
 345 {
 346     ram_addr_t r = bus->next_ring;
 347
 348     bus->next_ring += VIRTIO_RING_LEN;
 349     return r;
 350 }
 351
 352 void s390_virtio_device_sync(VirtIOS390Device *dev)
 353 {
 354     VirtIOS390Bus *bus = DO_UPCAST(VirtIOS390Bus, bus, dev->qdev.parent_bus);
 355     ram_addr_t cur_offs;
 356     uint8_t num_vq;
 357     int i;
 358
 359     virtio_reset(dev->vdev);
 360
 361     /* Sync dev space */
 362     stb_phys(&address_space_memory,
 363              dev->dev_offs + VIRTIO_DEV_OFFS_TYPE, dev->vdev->device_id);
 364
 365     stb_phys(&address_space_memory,
 366              dev->dev_offs + VIRTIO_DEV_OFFS_NUM_VQ,
 367              s390_virtio_device_num_vq(dev));
 368     stb_phys(&address_space_memory,
 369              dev->dev_offs + VIRTIO_DEV_OFFS_FEATURE_LEN, dev->feat_len);
 370
 371     stb_phys(&address_space_memory,
 372              dev->dev_offs + VIRTIO_DEV_OFFS_CONFIG_LEN, dev->vdev->config_len);
 373
 374     num_vq = s390_virtio_device_num_vq(dev);
 375     stb_phys(&address_space_memory,
 376              dev->dev_offs + VIRTIO_DEV_OFFS_NUM_VQ, num_vq);
 377
 378     /* Sync virtqueues */
 379     for (i = 0; i < num_vq; i++) {
 380         ram_addr_t vq = (dev->dev_offs + VIRTIO_DEV_OFFS_CONFIG) +
 381                         (i * VIRTIO_VQCONFIG_LEN);
 382         ram_addr_t vring;
 383
 384         vring = s390_virtio_next_ring(bus);
 385         virtio_queue_set_addr(dev->vdev, i, vring);
 386         virtio_queue_set_vector(dev->vdev, i, i);
 387         stq_be_phys(&address_space_memory,
 388                     vq + VIRTIO_VQCONFIG_OFFS_ADDRESS, vring);
 389         stw_be_phys(&address_space_memory,
 390                     vq + VIRTIO_VQCONFIG_OFFS_NUM,
 391                     virtio_queue_get_num(dev->vdev, i));
 392     }
 393
 394     cur_offs = dev->dev_offs;
 395     cur_offs += VIRTIO_DEV_OFFS_CONFIG;
 396     cur_offs += num_vq * VIRTIO_VQCONFIG_LEN;
 397
 398     /* Sync feature bitmap */
 399     stl_le_phys(&address_space_memory, cur_offs, dev->host_features);
 400
 401     dev->feat_offs = cur_offs + dev->feat_len;
 402     cur_offs += dev->feat_len * 2;
 403
 404     /* Sync config space */
 405     virtio_bus_get_vdev_config(&dev->bus, dev->vdev->config);
 406
 407     cpu_physical_memory_write(cur_offs,
 408                               dev->vdev->config, dev->vdev->config_len);
 409     cur_offs += dev->vdev->config_len;
 410 }
 411
 412 void s390_virtio_device_update_status(VirtIOS390Device *dev)
 413 {
 414     VirtIODevice *vdev = dev->vdev;
 415     uint32_t features;
 416
 417     virtio_set_status(vdev, ldub_phys(&address_space_memory,
 418                                       dev->dev_offs + VIRTIO_DEV_OFFS_STATUS));
 419
 420     /* Update guest supported feature bitmap */
 421
 422     features = bswap32(ldl_be_phys(&address_space_memory, dev->feat_offs));
 423     virtio_set_features(vdev, features);
 424 }
 425
 426 VirtIOS390Device *s390_virtio_bus_console(VirtIOS390Bus *bus)
 427 {
 428     return bus->console;
 429 }
 430
 431 /* Find a device by vring address */
 432 VirtIOS390Device *s390_virtio_bus_find_vring(VirtIOS390Bus *bus,
 433                                              ram_addr_t mem,
 434                                              int *vq_num)
 435 {
 436     BusChild *kid;
 437     int i;
 438
 439     QTAILQ_FOREACH(kid, &bus->bus.children, sibling) {
 440         VirtIOS390Device *dev = (VirtIOS390Device *)kid->child;
 441
 442         for(i = 0; i < VIRTIO_PCI_QUEUE_MAX; i++) {
 443             if (!virtio_queue_get_addr(dev->vdev, i))
 444                 break;
 445             if (virtio_queue_get_addr(dev->vdev, i) == mem) {
 446                 if (vq_num) {
 447                     *vq_num = i;
 448                 }
 449                 return dev;
 450             }
 451         }
 452     }
 453
 454     return NULL;
 455 }
 456
 457 /* Find a device by device descriptor location */
 458 VirtIOS390Device *s390_virtio_bus_find_mem(VirtIOS390Bus *bus, ram_addr_t mem)
 459 {
 460     BusChild *kid;
 461
 462     QTAILQ_FOREACH(kid, &bus->bus.children, sibling) {
 463         VirtIOS390Device *dev = (VirtIOS390Device *)kid->child;
 464         if (dev->dev_offs == mem) {
 465             return dev;
 466         }
 467     }
 468
 469     return NULL;
 470 }
 471
 472 /* DeviceState to VirtIOS390Device. Note: used on datapath,
 473  * be careful and test performance if you change this.
 474  */
 475 static inline VirtIOS390Device *to_virtio_s390_device_fast(DeviceState *d)
 476 {
 477     return container_of(d, VirtIOS390Device, qdev);
 478 }
 479
 480 /* DeviceState to VirtIOS390Device. TODO: use QOM. */
 481 static inline VirtIOS390Device *to_virtio_s390_device(DeviceState *d)
 482 {
 483     return container_of(d, VirtIOS390Device, qdev);
 484 }
 485
 486 static void virtio_s390_notify(DeviceState *d, uint16_t vector)
 487 {
 488     VirtIOS390Device *dev = to_virtio_s390_device_fast(d);
 489     uint64_t token = s390_virtio_device_vq_token(dev, vector);
 490     S390CPU *cpu = s390_cpu_addr2state(0);
 491
 492     s390_virtio_irq(cpu, 0, token);
 493 }
 494
 495 static unsigned virtio_s390_get_features(DeviceState *d)
 496 {
 497     VirtIOS390Device *dev = to_virtio_s390_device(d);
 498     return dev->host_features;
 499 }
 500
 501 /**************** S390 Virtio Bus Device Descriptions *******************/
 502
 503 static Property s390_virtio_net_properties[] = {
 504     DEFINE_NIC_PROPERTIES(VirtIONetS390, vdev.nic_conf),
 505     DEFINE_VIRTIO_NET_FEATURES(VirtIOS390Device, host_features),
 506     DEFINE_VIRTIO_NET_PROPERTIES(VirtIONetS390, vdev.net_conf),
 507     DEFINE_PROP_END_OF_LIST(),
 508 };
 509
 510 static void s390_virtio_net_class_init(ObjectClass *klass, void *data)
 511 {
 512     DeviceClass *dc = DEVICE_CLASS(klass);
 513     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
 514
 515     k->init = s390_virtio_net_init;
 516     dc->props = s390_virtio_net_properties;
 517 }
 518
 519 static const TypeInfo s390_virtio_net = {
 520     .name          = TYPE_VIRTIO_NET_S390,
 521     .parent        = TYPE_VIRTIO_S390_DEVICE,
 522     .instance_size = sizeof(VirtIONetS390),
 523     .instance_init = s390_virtio_net_instance_init,
 524     .class_init    = s390_virtio_net_class_init,
 525 };
 526
 527 static Property s390_virtio_blk_properties[] = {
 528     DEFINE_VIRTIO_BLK_PROPERTIES(VirtIOBlkS390, blk),
 529     DEFINE_PROP_END_OF_LIST(),
 530 };
 531
 532 static void s390_virtio_blk_class_init(ObjectClass *klass, void *data)
 533 {
 534     DeviceClass *dc = DEVICE_CLASS(klass);
 535     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
 536
 537     k->init = s390_virtio_blk_init;
 538     dc->props = s390_virtio_blk_properties;
 539 }
 540
 541 static const TypeInfo s390_virtio_blk = {
 542     .name          = "virtio-blk-s390",
 543     .parent        = TYPE_VIRTIO_S390_DEVICE,
 544     .instance_size = sizeof(VirtIOBlkS390),
 545     .instance_init = s390_virtio_blk_instance_init,
 546     .class_init    = s390_virtio_blk_class_init,
 547 };
 548
 549 static Property s390_virtio_serial_properties[] = {
 550     DEFINE_VIRTIO_SERIAL_PROPERTIES(VirtIOSerialS390, vdev.serial),
 551     DEFINE_PROP_END_OF_LIST(),
 552 };
 553
 554 static void s390_virtio_serial_class_init(ObjectClass *klass, void *data)
 555 {
 556     DeviceClass *dc = DEVICE_CLASS(klass);
 557     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
 558
 559     k->init = s390_virtio_serial_init;
 560     dc->props = s390_virtio_serial_properties;
 561 }
 562
 563 static const TypeInfo s390_virtio_serial = {
 564     .name          = TYPE_VIRTIO_SERIAL_S390,
 565     .parent        = TYPE_VIRTIO_S390_DEVICE,
 566     .instance_size = sizeof(VirtIOSerialS390),
 567     .instance_init = s390_virtio_serial_instance_init,
 568     .class_init    = s390_virtio_serial_class_init,
 569 };
 570
 571 static Property s390_virtio_rng_properties[] = {
 572     DEFINE_VIRTIO_COMMON_FEATURES(VirtIOS390Device, host_features),
 573     DEFINE_VIRTIO_RNG_PROPERTIES(VirtIORNGS390, vdev.conf),
 574     DEFINE_PROP_END_OF_LIST(),
 575 };
 576
 577 static void s390_virtio_rng_class_init(ObjectClass *klass, void *data)
 578 {
 579     DeviceClass *dc = DEVICE_CLASS(klass);
 580     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
 581
 582     k->init = s390_virtio_rng_init;
 583     dc->props = s390_virtio_rng_properties;
 584 }
 585
 586 static const TypeInfo s390_virtio_rng = {
 587     .name          = TYPE_VIRTIO_RNG_S390,
 588     .parent        = TYPE_VIRTIO_S390_DEVICE,
 589     .instance_size = sizeof(VirtIORNGS390),
 590     .instance_init = s390_virtio_rng_instance_init,
 591     .class_init    = s390_virtio_rng_class_init,
 592 };
 593
 594 static int s390_virtio_busdev_init(DeviceState *dev)
 595 {
 596     VirtIOS390Device *_dev = (VirtIOS390Device *)dev;
 597     VirtIOS390DeviceClass *_info = VIRTIO_S390_DEVICE_GET_CLASS(dev);
 598
 599     virtio_s390_bus_new(&_dev->bus, sizeof(_dev->bus), _dev);
 600
 601     return _info->init(_dev);
 602 }
 603
 604 static void s390_virtio_busdev_reset(DeviceState *dev)
 605 {
 606     VirtIOS390Device *_dev = (VirtIOS390Device *)dev;
 607
 608     virtio_reset(_dev->vdev);
 609 }
 610
 611 static void virtio_s390_device_class_init(ObjectClass *klass, void *data)
 612 {
 613     DeviceClass *dc = DEVICE_CLASS(klass);
 614
 615     dc->init = s390_virtio_busdev_init;
 616     dc->bus_type = TYPE_S390_VIRTIO_BUS;
 617     dc->unplug = qdev_simple_unplug_cb;
 618     dc->reset = s390_virtio_busdev_reset;
 619 }
 620
 621 static const TypeInfo virtio_s390_device_info = {
 622     .name = TYPE_VIRTIO_S390_DEVICE,
 623     .parent = TYPE_DEVICE,
 624     .instance_size = sizeof(VirtIOS390Device),
 625     .class_init = virtio_s390_device_class_init,
 626     .class_size = sizeof(VirtIOS390DeviceClass),
 627     .abstract = true,
 628 };
 629
 630 static Property s390_virtio_scsi_properties[] = {
 631     DEFINE_VIRTIO_SCSI_PROPERTIES(VirtIOSCSIS390, vdev.parent_obj.conf),
 632     DEFINE_VIRTIO_SCSI_FEATURES(VirtIOS390Device, host_features),
 633     DEFINE_PROP_END_OF_LIST(),
 634 };
 635
 636 static void s390_virtio_scsi_class_init(ObjectClass *klass, void *data)
 637 {
 638     DeviceClass *dc = DEVICE_CLASS(klass);
 639     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
 640
 641     k->init = s390_virtio_scsi_init;
 642     dc->props = s390_virtio_scsi_properties;
 643 }
 644
 645 static const TypeInfo s390_virtio_scsi = {
 646     .name          = TYPE_VIRTIO_SCSI_S390,
 647     .parent        = TYPE_VIRTIO_S390_DEVICE,
 648     .instance_size = sizeof(VirtIOSCSIS390),
 649     .instance_init = s390_virtio_scsi_instance_init,
 650     .class_init    = s390_virtio_scsi_class_init,
 651 };
 652
 653 #ifdef CONFIG_VHOST_SCSI
 654 static Property s390_vhost_scsi_properties[] = {
 655     DEFINE_VIRTIO_COMMON_FEATURES(VirtIOS390Device, host_features),
 656     DEFINE_VHOST_SCSI_PROPERTIES(VHostSCSIS390, vdev.parent_obj.conf),
 657     DEFINE_PROP_END_OF_LIST(),
 658 };
 659
 660 static void s390_vhost_scsi_class_init(ObjectClass *klass, void *data)
 661 {
 662     DeviceClass *dc = DEVICE_CLASS(klass);
 663     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
 664
 665     k->init = s390_vhost_scsi_init;
 666     dc->props = s390_vhost_scsi_properties;
 667 }
 668
 669 static const TypeInfo s390_vhost_scsi = {
 670     .name          = TYPE_VHOST_SCSI_S390,
 671     .parent        = TYPE_VIRTIO_S390_DEVICE,
 672     .instance_size = sizeof(VHostSCSIS390),
 673     .instance_init = s390_vhost_scsi_instance_init,
 674     .class_init    = s390_vhost_scsi_class_init,
 675 };
 676 #endif
 677
 678 /***************** S390 Virtio Bus Bridge Device *******************/
 679 /* Only required to have the virtio bus as child in the system bus */
 680
 681 static int s390_virtio_bridge_init(SysBusDevice *dev)
 682 {
 683     /* nothing */
 684     return 0;
 685 }
 686
 687 static void s390_virtio_bridge_class_init(ObjectClass *klass, void *data)
 688 {
 689     SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 690
 691     k->init = s390_virtio_bridge_init;
 692 }
 693
 694 static const TypeInfo s390_virtio_bridge_info = {
 695     .name          = "s390-virtio-bridge",
 696     .parent        = TYPE_SYS_BUS_DEVICE,
 697     .instance_size = sizeof(SysBusDevice),
 698     .class_init    = s390_virtio_bridge_class_init,
 699 };
 700
 701 /* virtio-s390-bus */
 702
 703 static void virtio_s390_bus_new(VirtioBusState *bus, size_t bus_size,
 704                                 VirtIOS390Device *dev)
 705 {
 706     DeviceState *qdev = DEVICE(dev);
 707     BusState *qbus;
 708     char virtio_bus_name[] = "virtio-bus";
 709
 710     qbus_create_inplace(bus, bus_size, TYPE_VIRTIO_S390_BUS,
 711                         qdev, virtio_bus_name);
 712     qbus = BUS(bus);
 713     qbus->allow_hotplug = 1;
 714 }
 715
 716 static void virtio_s390_bus_class_init(ObjectClass *klass, void *data)
 717 {
 718     VirtioBusClass *k = VIRTIO_BUS_CLASS(klass);
 719     BusClass *bus_class = BUS_CLASS(klass);
 720     bus_class->max_dev = 1;
 721     k->notify = virtio_s390_notify;
 722     k->get_features = virtio_s390_get_features;
 723 }
 724
 725 static const TypeInfo virtio_s390_bus_info = {
 726     .name          = TYPE_VIRTIO_S390_BUS,
 727     .parent        = TYPE_VIRTIO_BUS,
 728     .instance_size = sizeof(VirtioS390BusState),
 729     .class_init    = virtio_s390_bus_class_init,
 730 };
 731
 732 static void s390_virtio_register_types(void)
 733 {
 734     type_register_static(&virtio_s390_bus_info);
 735     type_register_static(&s390_virtio_bus_info);
 736     type_register_static(&virtio_s390_device_info);
 737     type_register_static(&s390_virtio_serial);
 738     type_register_static(&s390_virtio_blk);
 739     type_register_static(&s390_virtio_net);
 740     type_register_static(&s390_virtio_scsi);
 741 #ifdef CONFIG_VHOST_SCSI
 742     type_register_static(&s390_vhost_scsi);
 743 #endif
 744     type_register_static(&s390_virtio_rng);
 745     type_register_static(&s390_virtio_bridge_info);
 746 }
 747
 748 type_init(s390_virtio_register_types)