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,
 317                              qdev_prop_allow_set_link_before_realize,
 318                              OBJ_PROP_LINK_UNREF_ON_RELEASE, NULL);
 319 }
 320
 321 static uint64_t s390_virtio_device_vq_token(VirtIOS390Device *dev, int vq)
 322 {
 323     ram_addr_t token_off;
 324
 325     token_off = (dev->dev_offs + VIRTIO_DEV_OFFS_CONFIG) +
 326                 (vq * VIRTIO_VQCONFIG_LEN) +
 327                 VIRTIO_VQCONFIG_OFFS_TOKEN;
 328
 329     return ldq_be_phys(&address_space_memory, token_off);
 330 }
 331
 332 static ram_addr_t s390_virtio_device_num_vq(VirtIOS390Device *dev)
 333 {
 334     VirtIODevice *vdev = dev->vdev;
 335     int num_vq;
 336
 337     for (num_vq = 0; num_vq < VIRTIO_PCI_QUEUE_MAX; num_vq++) {
 338         if (!virtio_queue_get_num(vdev, num_vq)) {
 339             break;
 340         }
 341     }
 342
 343     return num_vq;
 344 }
 345
 346 static ram_addr_t s390_virtio_next_ring(VirtIOS390Bus *bus)
 347 {
 348     ram_addr_t r = bus->next_ring;
 349
 350     bus->next_ring += VIRTIO_RING_LEN;
 351     return r;
 352 }
 353
 354 void s390_virtio_device_sync(VirtIOS390Device *dev)
 355 {
 356     VirtIOS390Bus *bus = DO_UPCAST(VirtIOS390Bus, bus, dev->qdev.parent_bus);
 357     ram_addr_t cur_offs;
 358     uint8_t num_vq;
 359     int i;
 360
 361     virtio_reset(dev->vdev);
 362
 363     /* Sync dev space */
 364     stb_phys(&address_space_memory,
 365              dev->dev_offs + VIRTIO_DEV_OFFS_TYPE, dev->vdev->device_id);
 366
 367     stb_phys(&address_space_memory,
 368              dev->dev_offs + VIRTIO_DEV_OFFS_NUM_VQ,
 369              s390_virtio_device_num_vq(dev));
 370     stb_phys(&address_space_memory,
 371              dev->dev_offs + VIRTIO_DEV_OFFS_FEATURE_LEN, dev->feat_len);
 372
 373     stb_phys(&address_space_memory,
 374              dev->dev_offs + VIRTIO_DEV_OFFS_CONFIG_LEN, dev->vdev->config_len);
 375
 376     num_vq = s390_virtio_device_num_vq(dev);
 377     stb_phys(&address_space_memory,
 378              dev->dev_offs + VIRTIO_DEV_OFFS_NUM_VQ, num_vq);
 379
 380     /* Sync virtqueues */
 381     for (i = 0; i < num_vq; i++) {
 382         ram_addr_t vq = (dev->dev_offs + VIRTIO_DEV_OFFS_CONFIG) +
 383                         (i * VIRTIO_VQCONFIG_LEN);
 384         ram_addr_t vring;
 385
 386         vring = s390_virtio_next_ring(bus);
 387         virtio_queue_set_addr(dev->vdev, i, vring);
 388         virtio_queue_set_vector(dev->vdev, i, i);
 389         stq_be_phys(&address_space_memory,
 390                     vq + VIRTIO_VQCONFIG_OFFS_ADDRESS, vring);
 391         stw_be_phys(&address_space_memory,
 392                     vq + VIRTIO_VQCONFIG_OFFS_NUM,
 393                     virtio_queue_get_num(dev->vdev, i));
 394     }
 395
 396     cur_offs = dev->dev_offs;
 397     cur_offs += VIRTIO_DEV_OFFS_CONFIG;
 398     cur_offs += num_vq * VIRTIO_VQCONFIG_LEN;
 399
 400     /* Sync feature bitmap */
 401     stl_le_phys(&address_space_memory, cur_offs, dev->host_features);
 402
 403     dev->feat_offs = cur_offs + dev->feat_len;
 404     cur_offs += dev->feat_len * 2;
 405
 406     /* Sync config space */
 407     virtio_bus_get_vdev_config(&dev->bus, dev->vdev->config);
 408
 409     cpu_physical_memory_write(cur_offs,
 410                               dev->vdev->config, dev->vdev->config_len);
 411     cur_offs += dev->vdev->config_len;
 412 }
 413
 414 void s390_virtio_device_update_status(VirtIOS390Device *dev)
 415 {
 416     VirtIODevice *vdev = dev->vdev;
 417     uint32_t features;
 418
 419     virtio_set_status(vdev, ldub_phys(&address_space_memory,
 420                                       dev->dev_offs + VIRTIO_DEV_OFFS_STATUS));
 421
 422     /* Update guest supported feature bitmap */
 423
 424     features = bswap32(ldl_be_phys(&address_space_memory, dev->feat_offs));
 425     virtio_set_features(vdev, features);
 426 }
 427
 428 VirtIOS390Device *s390_virtio_bus_console(VirtIOS390Bus *bus)
 429 {
 430     return bus->console;
 431 }
 432
 433 /* Find a device by vring address */
 434 VirtIOS390Device *s390_virtio_bus_find_vring(VirtIOS390Bus *bus,
 435                                              ram_addr_t mem,
 436                                              int *vq_num)
 437 {
 438     BusChild *kid;
 439     int i;
 440
 441     QTAILQ_FOREACH(kid, &bus->bus.children, sibling) {
 442         VirtIOS390Device *dev = (VirtIOS390Device *)kid->child;
 443
 444         for(i = 0; i < VIRTIO_PCI_QUEUE_MAX; i++) {
 445             if (!virtio_queue_get_addr(dev->vdev, i))
 446                 break;
 447             if (virtio_queue_get_addr(dev->vdev, i) == mem) {
 448                 if (vq_num) {
 449                     *vq_num = i;
 450                 }
 451                 return dev;
 452             }
 453         }
 454     }
 455
 456     return NULL;
 457 }
 458
 459 /* Find a device by device descriptor location */
 460 VirtIOS390Device *s390_virtio_bus_find_mem(VirtIOS390Bus *bus, ram_addr_t mem)
 461 {
 462     BusChild *kid;
 463
 464     QTAILQ_FOREACH(kid, &bus->bus.children, sibling) {
 465         VirtIOS390Device *dev = (VirtIOS390Device *)kid->child;
 466         if (dev->dev_offs == mem) {
 467             return dev;
 468         }
 469     }
 470
 471     return NULL;
 472 }
 473
 474 /* DeviceState to VirtIOS390Device. Note: used on datapath,
 475  * be careful and test performance if you change this.
 476  */
 477 static inline VirtIOS390Device *to_virtio_s390_device_fast(DeviceState *d)
 478 {
 479     return container_of(d, VirtIOS390Device, qdev);
 480 }
 481
 482 /* DeviceState to VirtIOS390Device. TODO: use QOM. */
 483 static inline VirtIOS390Device *to_virtio_s390_device(DeviceState *d)
 484 {
 485     return container_of(d, VirtIOS390Device, qdev);
 486 }
 487
 488 static void virtio_s390_notify(DeviceState *d, uint16_t vector)
 489 {
 490     VirtIOS390Device *dev = to_virtio_s390_device_fast(d);
 491     uint64_t token = s390_virtio_device_vq_token(dev, vector);
 492     S390CPU *cpu = s390_cpu_addr2state(0);
 493
 494     s390_virtio_irq(cpu, 0, token);
 495 }
 496
 497 static unsigned virtio_s390_get_features(DeviceState *d)
 498 {
 499     VirtIOS390Device *dev = to_virtio_s390_device(d);
 500     return dev->host_features;
 501 }
 502
 503 /**************** S390 Virtio Bus Device Descriptions *******************/
 504
 505 static Property s390_virtio_net_properties[] = {
 506     DEFINE_NIC_PROPERTIES(VirtIONetS390, vdev.nic_conf),
 507     DEFINE_VIRTIO_NET_FEATURES(VirtIOS390Device, host_features),
 508     DEFINE_VIRTIO_NET_PROPERTIES(VirtIONetS390, vdev.net_conf),
 509     DEFINE_PROP_END_OF_LIST(),
 510 };
 511
 512 static void s390_virtio_net_class_init(ObjectClass *klass, void *data)
 513 {
 514     DeviceClass *dc = DEVICE_CLASS(klass);
 515     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
 516
 517     k->init = s390_virtio_net_init;
 518     dc->props = s390_virtio_net_properties;
 519 }
 520
 521 static const TypeInfo s390_virtio_net = {
 522     .name          = TYPE_VIRTIO_NET_S390,
 523     .parent        = TYPE_VIRTIO_S390_DEVICE,
 524     .instance_size = sizeof(VirtIONetS390),
 525     .instance_init = s390_virtio_net_instance_init,
 526     .class_init    = s390_virtio_net_class_init,
 527 };
 528
 529 static Property s390_virtio_blk_properties[] = {
 530     DEFINE_VIRTIO_BLK_PROPERTIES(VirtIOBlkS390, blk),
 531     DEFINE_PROP_END_OF_LIST(),
 532 };
 533
 534 static void s390_virtio_blk_class_init(ObjectClass *klass, void *data)
 535 {
 536     DeviceClass *dc = DEVICE_CLASS(klass);
 537     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
 538
 539     k->init = s390_virtio_blk_init;
 540     dc->props = s390_virtio_blk_properties;
 541 }
 542
 543 static const TypeInfo s390_virtio_blk = {
 544     .name          = "virtio-blk-s390",
 545     .parent        = TYPE_VIRTIO_S390_DEVICE,
 546     .instance_size = sizeof(VirtIOBlkS390),
 547     .instance_init = s390_virtio_blk_instance_init,
 548     .class_init    = s390_virtio_blk_class_init,
 549 };
 550
 551 static Property s390_virtio_serial_properties[] = {
 552     DEFINE_VIRTIO_SERIAL_PROPERTIES(VirtIOSerialS390, vdev.serial),
 553     DEFINE_PROP_END_OF_LIST(),
 554 };
 555
 556 static void s390_virtio_serial_class_init(ObjectClass *klass, void *data)
 557 {
 558     DeviceClass *dc = DEVICE_CLASS(klass);
 559     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
 560
 561     k->init = s390_virtio_serial_init;
 562     dc->props = s390_virtio_serial_properties;
 563 }
 564
 565 static const TypeInfo s390_virtio_serial = {
 566     .name          = TYPE_VIRTIO_SERIAL_S390,
 567     .parent        = TYPE_VIRTIO_S390_DEVICE,
 568     .instance_size = sizeof(VirtIOSerialS390),
 569     .instance_init = s390_virtio_serial_instance_init,
 570     .class_init    = s390_virtio_serial_class_init,
 571 };
 572
 573 static Property s390_virtio_rng_properties[] = {
 574     DEFINE_VIRTIO_COMMON_FEATURES(VirtIOS390Device, host_features),
 575     DEFINE_VIRTIO_RNG_PROPERTIES(VirtIORNGS390, vdev.conf),
 576     DEFINE_PROP_END_OF_LIST(),
 577 };
 578
 579 static void s390_virtio_rng_class_init(ObjectClass *klass, void *data)
 580 {
 581     DeviceClass *dc = DEVICE_CLASS(klass);
 582     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
 583
 584     k->init = s390_virtio_rng_init;
 585     dc->props = s390_virtio_rng_properties;
 586 }
 587
 588 static const TypeInfo s390_virtio_rng = {
 589     .name          = TYPE_VIRTIO_RNG_S390,
 590     .parent        = TYPE_VIRTIO_S390_DEVICE,
 591     .instance_size = sizeof(VirtIORNGS390),
 592     .instance_init = s390_virtio_rng_instance_init,
 593     .class_init    = s390_virtio_rng_class_init,
 594 };
 595
 596 static int s390_virtio_busdev_init(DeviceState *dev)
 597 {
 598     VirtIOS390Device *_dev = (VirtIOS390Device *)dev;
 599     VirtIOS390DeviceClass *_info = VIRTIO_S390_DEVICE_GET_CLASS(dev);
 600
 601     virtio_s390_bus_new(&_dev->bus, sizeof(_dev->bus), _dev);
 602
 603     return _info->init(_dev);
 604 }
 605
 606 static void s390_virtio_busdev_reset(DeviceState *dev)
 607 {
 608     VirtIOS390Device *_dev = (VirtIOS390Device *)dev;
 609
 610     virtio_reset(_dev->vdev);
 611 }
 612
 613 static void virtio_s390_device_class_init(ObjectClass *klass, void *data)
 614 {
 615     DeviceClass *dc = DEVICE_CLASS(klass);
 616
 617     dc->init = s390_virtio_busdev_init;
 618     dc->bus_type = TYPE_S390_VIRTIO_BUS;
 619     dc->unplug = qdev_simple_unplug_cb;
 620     dc->reset = s390_virtio_busdev_reset;
 621 }
 622
 623 static const TypeInfo virtio_s390_device_info = {
 624     .name = TYPE_VIRTIO_S390_DEVICE,
 625     .parent = TYPE_DEVICE,
 626     .instance_size = sizeof(VirtIOS390Device),
 627     .class_init = virtio_s390_device_class_init,
 628     .class_size = sizeof(VirtIOS390DeviceClass),
 629     .abstract = true,
 630 };
 631
 632 static Property s390_virtio_scsi_properties[] = {
 633     DEFINE_VIRTIO_SCSI_PROPERTIES(VirtIOSCSIS390, vdev.parent_obj.conf),
 634     DEFINE_VIRTIO_SCSI_FEATURES(VirtIOS390Device, host_features),
 635     DEFINE_PROP_END_OF_LIST(),
 636 };
 637
 638 static void s390_virtio_scsi_class_init(ObjectClass *klass, void *data)
 639 {
 640     DeviceClass *dc = DEVICE_CLASS(klass);
 641     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
 642
 643     k->init = s390_virtio_scsi_init;
 644     dc->props = s390_virtio_scsi_properties;
 645 }
 646
 647 static const TypeInfo s390_virtio_scsi = {
 648     .name          = TYPE_VIRTIO_SCSI_S390,
 649     .parent        = TYPE_VIRTIO_S390_DEVICE,
 650     .instance_size = sizeof(VirtIOSCSIS390),
 651     .instance_init = s390_virtio_scsi_instance_init,
 652     .class_init    = s390_virtio_scsi_class_init,
 653 };
 654
 655 #ifdef CONFIG_VHOST_SCSI
 656 static Property s390_vhost_scsi_properties[] = {
 657     DEFINE_VIRTIO_COMMON_FEATURES(VirtIOS390Device, host_features),
 658     DEFINE_VHOST_SCSI_PROPERTIES(VHostSCSIS390, vdev.parent_obj.conf),
 659     DEFINE_PROP_END_OF_LIST(),
 660 };
 661
 662 static void s390_vhost_scsi_class_init(ObjectClass *klass, void *data)
 663 {
 664     DeviceClass *dc = DEVICE_CLASS(klass);
 665     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
 666
 667     k->init = s390_vhost_scsi_init;
 668     dc->props = s390_vhost_scsi_properties;
 669 }
 670
 671 static const TypeInfo s390_vhost_scsi = {
 672     .name          = TYPE_VHOST_SCSI_S390,
 673     .parent        = TYPE_VIRTIO_S390_DEVICE,
 674     .instance_size = sizeof(VHostSCSIS390),
 675     .instance_init = s390_vhost_scsi_instance_init,
 676     .class_init    = s390_vhost_scsi_class_init,
 677 };
 678 #endif
 679
 680 /***************** S390 Virtio Bus Bridge Device *******************/
 681 /* Only required to have the virtio bus as child in the system bus */
 682
 683 static int s390_virtio_bridge_init(SysBusDevice *dev)
 684 {
 685     /* nothing */
 686     return 0;
 687 }
 688
 689 static void s390_virtio_bridge_class_init(ObjectClass *klass, void *data)
 690 {
 691     SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 692
 693     k->init = s390_virtio_bridge_init;
 694 }
 695
 696 static const TypeInfo s390_virtio_bridge_info = {
 697     .name          = "s390-virtio-bridge",
 698     .parent        = TYPE_SYS_BUS_DEVICE,
 699     .instance_size = sizeof(SysBusDevice),
 700     .class_init    = s390_virtio_bridge_class_init,
 701 };
 702
 703 /* virtio-s390-bus */
 704
 705 static void virtio_s390_bus_new(VirtioBusState *bus, size_t bus_size,
 706                                 VirtIOS390Device *dev)
 707 {
 708     DeviceState *qdev = DEVICE(dev);
 709     BusState *qbus;
 710     char virtio_bus_name[] = "virtio-bus";
 711
 712     qbus_create_inplace(bus, bus_size, TYPE_VIRTIO_S390_BUS,
 713                         qdev, virtio_bus_name);
 714     qbus = BUS(bus);
 715     qbus->allow_hotplug = 1;
 716 }
 717
 718 static void virtio_s390_bus_class_init(ObjectClass *klass, void *data)
 719 {
 720     VirtioBusClass *k = VIRTIO_BUS_CLASS(klass);
 721     BusClass *bus_class = BUS_CLASS(klass);
 722     bus_class->max_dev = 1;
 723     k->notify = virtio_s390_notify;
 724     k->get_features = virtio_s390_get_features;
 725 }
 726
 727 static const TypeInfo virtio_s390_bus_info = {
 728     .name          = TYPE_VIRTIO_S390_BUS,
 729     .parent        = TYPE_VIRTIO_BUS,
 730     .instance_size = sizeof(VirtioS390BusState),
 731     .class_init    = virtio_s390_bus_class_init,
 732 };
 733
 734 static void s390_virtio_register_types(void)
 735 {
 736     type_register_static(&virtio_s390_bus_info);
 737     type_register_static(&s390_virtio_bus_info);
 738     type_register_static(&virtio_s390_device_info);
 739     type_register_static(&s390_virtio_serial);
 740     type_register_static(&s390_virtio_blk);
 741     type_register_static(&s390_virtio_net);
 742     type_register_static(&s390_virtio_scsi);
 743 #ifdef CONFIG_VHOST_SCSI
 744     type_register_static(&s390_vhost_scsi);
 745 #endif
 746     type_register_static(&s390_virtio_rng);
 747     type_register_static(&s390_virtio_bridge_info);
 748 }
 749
 750 type_init(s390_virtio_register_types)