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 "sysemu/block-backend.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         address_space_stw(&address_space_memory, idx_addr, 0,
  79                           MEMTXATTRS_UNSPECIFIED, NULL);
  80         idx_addr = virtio_queue_get_avail_addr(dev->vdev, i) +
  81             virtio_queue_get_avail_size(dev->vdev, i);
  82         address_space_stw(&address_space_memory, idx_addr, 0,
  83                           MEMTXATTRS_UNSPECIFIED, NULL);
  84         idx_addr = virtio_queue_get_used_addr(dev->vdev, i) +
  85             VIRTIO_VRING_USED_IDX_OFFS;
  86         address_space_stw(&address_space_memory, idx_addr, 0,
  87                           MEMTXATTRS_UNSPECIFIED, NULL);
  88         idx_addr = virtio_queue_get_used_addr(dev->vdev, i) +
  89             virtio_queue_get_used_size(dev->vdev, i);
  90         address_space_stw(&address_space_memory, idx_addr, 0,
  91                           MEMTXATTRS_UNSPECIFIED, NULL);
  92     }
  93 }
  94
  95 VirtIOS390Bus *s390_virtio_bus_init(ram_addr_t *ram_size)
  96 {
  97     VirtIOS390Bus *bus;
  98     BusState *_bus;
  99     DeviceState *dev;
 100
 101     /* Create bridge device */
 102     dev = qdev_create(NULL, "s390-virtio-bridge");
 103     qdev_init_nofail(dev);
 104
 105     /* Create bus on bridge device */
 106
 107     _bus = qbus_create(TYPE_S390_VIRTIO_BUS, dev, "s390-virtio");
 108     bus = DO_UPCAST(VirtIOS390Bus, bus, _bus);
 109
 110     bus->dev_page = *ram_size;
 111     bus->dev_offs = bus->dev_page;
 112     bus->next_ring = bus->dev_page + TARGET_PAGE_SIZE;
 113
 114     /* Enable hotplugging */
 115     qbus_set_hotplug_handler(_bus, dev, &error_abort);
 116
 117     /* Allocate RAM for VirtIO device pages (descriptors, queues, rings) */
 118     *ram_size += S390_DEVICE_PAGES * TARGET_PAGE_SIZE;
 119
 120     qemu_register_reset(s390_virtio_bus_reset, bus);
 121     return bus;
 122 }
 123
 124 static void s390_virtio_device_init(VirtIOS390Device *dev,
 125                                     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         s390_virtio_irq(VIRTIO_PARAM_DEV_ADD, dev->dev_offs);
 148     }
 149 }
 150
 151 static void s390_virtio_net_realize(VirtIOS390Device *s390_dev, Error **errp)
 152 {
 153     DeviceState *qdev = DEVICE(s390_dev);
 154     VirtIONetS390 *dev = VIRTIO_NET_S390(s390_dev);
 155     DeviceState *vdev = DEVICE(&dev->vdev);
 156     Error *err = NULL;
 157
 158     virtio_net_set_netclient_name(&dev->vdev, qdev->id,
 159                                   object_get_typename(OBJECT(qdev)));
 160     qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
 161     object_property_set_bool(OBJECT(vdev), true, "realized", &err);
 162     if (err) {
 163         error_propagate(errp, err);
 164         return;
 165     }
 166
 167     s390_virtio_device_init(s390_dev, VIRTIO_DEVICE(vdev));
 168 }
 169
 170 static void s390_virtio_net_instance_init(Object *obj)
 171 {
 172     VirtIONetS390 *dev = VIRTIO_NET_S390(obj);
 173
 174     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
 175                                 TYPE_VIRTIO_NET);
 176     object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
 177                               "bootindex", &error_abort);
 178 }
 179
 180 static void s390_virtio_blk_realize(VirtIOS390Device *s390_dev, Error **errp)
 181 {
 182     VirtIOBlkS390 *dev = VIRTIO_BLK_S390(s390_dev);
 183     DeviceState *vdev = DEVICE(&dev->vdev);
 184     Error *err = NULL;
 185
 186     qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
 187     object_property_set_bool(OBJECT(vdev), true, "realized", &err);
 188     if (err) {
 189         error_propagate(errp, err);
 190         return;
 191     }
 192     s390_virtio_device_init(s390_dev, VIRTIO_DEVICE(vdev));
 193 }
 194
 195 static void s390_virtio_blk_instance_init(Object *obj)
 196 {
 197     VirtIOBlkS390 *dev = VIRTIO_BLK_S390(obj);
 198
 199     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
 200                                 TYPE_VIRTIO_BLK);
 201     object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev),"iothread",
 202                               &error_abort);
 203     object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
 204                               "bootindex", &error_abort);
 205 }
 206
 207 static void s390_virtio_serial_realize(VirtIOS390Device *s390_dev, Error **errp)
 208 {
 209     VirtIOSerialS390 *dev = VIRTIO_SERIAL_S390(s390_dev);
 210     DeviceState *vdev = DEVICE(&dev->vdev);
 211     DeviceState *qdev = DEVICE(s390_dev);
 212     Error *err = NULL;
 213     VirtIOS390Bus *bus;
 214     char *bus_name;
 215
 216     bus = DO_UPCAST(VirtIOS390Bus, bus, qdev->parent_bus);
 217
 218     /*
 219      * For command line compatibility, this sets the virtio-serial-device bus
 220      * name as before.
 221      */
 222     if (qdev->id) {
 223         bus_name = g_strdup_printf("%s.0", qdev->id);
 224         virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
 225         g_free(bus_name);
 226     }
 227
 228     qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
 229     object_property_set_bool(OBJECT(vdev), true, "realized", &err);
 230     if (err) {
 231         error_propagate(errp, err);
 232         return;
 233     }
 234
 235     s390_virtio_device_init(s390_dev, VIRTIO_DEVICE(vdev));
 236     bus->console = s390_dev;
 237 }
 238
 239 static void s390_virtio_serial_instance_init(Object *obj)
 240 {
 241     VirtIOSerialS390 *dev = VIRTIO_SERIAL_S390(obj);
 242
 243     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
 244                                 TYPE_VIRTIO_SERIAL);
 245 }
 246
 247 static void s390_virtio_scsi_realize(VirtIOS390Device *s390_dev, Error **errp)
 248 {
 249     VirtIOSCSIS390 *dev = VIRTIO_SCSI_S390(s390_dev);
 250     DeviceState *vdev = DEVICE(&dev->vdev);
 251     DeviceState *qdev = DEVICE(s390_dev);
 252     Error *err = NULL;
 253     char *bus_name;
 254
 255     /*
 256      * For command line compatibility, this sets the virtio-scsi-device bus
 257      * name as before.
 258      */
 259     if (qdev->id) {
 260         bus_name = g_strdup_printf("%s.0", qdev->id);
 261         virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
 262         g_free(bus_name);
 263     }
 264
 265     qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
 266     object_property_set_bool(OBJECT(vdev), true, "realized", &err);
 267     if (err) {
 268         error_propagate(errp, err);
 269         return;
 270     }
 271
 272     s390_virtio_device_init(s390_dev, VIRTIO_DEVICE(vdev));
 273 }
 274
 275 static void s390_virtio_scsi_instance_init(Object *obj)
 276 {
 277     VirtIOSCSIS390 *dev = VIRTIO_SCSI_S390(obj);
 278
 279     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
 280                                 TYPE_VIRTIO_SCSI);
 281 }
 282
 283 #ifdef CONFIG_VHOST_SCSI
 284 static void s390_vhost_scsi_realize(VirtIOS390Device *s390_dev, Error **errp)
 285 {
 286     VHostSCSIS390 *dev = VHOST_SCSI_S390(s390_dev);
 287     DeviceState *vdev = DEVICE(&dev->vdev);
 288     Error *err = NULL;
 289
 290     qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
 291     object_property_set_bool(OBJECT(vdev), true, "realized", &err);
 292     if (err) {
 293         error_propagate(errp, err);
 294         return;
 295     }
 296
 297     s390_virtio_device_init(s390_dev, VIRTIO_DEVICE(vdev));
 298 }
 299
 300 static void s390_vhost_scsi_instance_init(Object *obj)
 301 {
 302     VHostSCSIS390 *dev = VHOST_SCSI_S390(obj);
 303
 304     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
 305                                 TYPE_VHOST_SCSI);
 306 }
 307 #endif
 308
 309
 310 static void s390_virtio_rng_realize(VirtIOS390Device *s390_dev, Error **errp)
 311 {
 312     VirtIORNGS390 *dev = VIRTIO_RNG_S390(s390_dev);
 313     DeviceState *vdev = DEVICE(&dev->vdev);
 314     Error *err = NULL;
 315
 316     qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
 317     object_property_set_bool(OBJECT(vdev), true, "realized", &err);
 318     if (err) {
 319         error_propagate(errp, err);
 320         return;
 321     }
 322
 323     object_property_set_link(OBJECT(dev),
 324                              OBJECT(dev->vdev.conf.rng), "rng",
 325                              NULL);
 326
 327     s390_virtio_device_init(s390_dev, VIRTIO_DEVICE(vdev));
 328 }
 329
 330 static void s390_virtio_rng_instance_init(Object *obj)
 331 {
 332     VirtIORNGS390 *dev = VIRTIO_RNG_S390(obj);
 333
 334     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
 335                                 TYPE_VIRTIO_RNG);
 336     object_property_add_alias(obj, "rng", OBJECT(&dev->vdev),
 337                               "rng", &error_abort);
 338 }
 339
 340 static uint64_t s390_virtio_device_vq_token(VirtIOS390Device *dev, int vq)
 341 {
 342     ram_addr_t token_off;
 343
 344     token_off = (dev->dev_offs + VIRTIO_DEV_OFFS_CONFIG) +
 345                 (vq * VIRTIO_VQCONFIG_LEN) +
 346                 VIRTIO_VQCONFIG_OFFS_TOKEN;
 347
 348     return address_space_ldq_be(&address_space_memory, token_off,
 349                                 MEMTXATTRS_UNSPECIFIED, NULL);
 350 }
 351
 352 static ram_addr_t s390_virtio_device_num_vq(VirtIOS390Device *dev)
 353 {
 354     VirtIODevice *vdev = dev->vdev;
 355     int num_vq;
 356
 357     for (num_vq = 0; num_vq < VIRTIO_PCI_QUEUE_MAX; num_vq++) {
 358         if (!virtio_queue_get_num(vdev, num_vq)) {
 359             break;
 360         }
 361     }
 362
 363     return num_vq;
 364 }
 365
 366 static ram_addr_t s390_virtio_next_ring(VirtIOS390Bus *bus)
 367 {
 368     ram_addr_t r = bus->next_ring;
 369
 370     bus->next_ring += VIRTIO_RING_LEN;
 371     return r;
 372 }
 373
 374 void s390_virtio_device_sync(VirtIOS390Device *dev)
 375 {
 376     VirtIOS390Bus *bus = DO_UPCAST(VirtIOS390Bus, bus, dev->qdev.parent_bus);
 377     ram_addr_t cur_offs;
 378     uint8_t num_vq;
 379     int i;
 380
 381     virtio_reset(dev->vdev);
 382
 383     /* Sync dev space */
 384     address_space_stb(&address_space_memory,
 385                       dev->dev_offs + VIRTIO_DEV_OFFS_TYPE,
 386                       dev->vdev->device_id,
 387                       MEMTXATTRS_UNSPECIFIED,
 388                       NULL);
 389
 390     address_space_stb(&address_space_memory,
 391                       dev->dev_offs + VIRTIO_DEV_OFFS_NUM_VQ,
 392                       s390_virtio_device_num_vq(dev),
 393                       MEMTXATTRS_UNSPECIFIED,
 394                       NULL);
 395     address_space_stb(&address_space_memory,
 396                       dev->dev_offs + VIRTIO_DEV_OFFS_FEATURE_LEN,
 397                       dev->feat_len,
 398                       MEMTXATTRS_UNSPECIFIED,
 399                       NULL);
 400
 401     address_space_stb(&address_space_memory,
 402                       dev->dev_offs + VIRTIO_DEV_OFFS_CONFIG_LEN,
 403                       dev->vdev->config_len,
 404                       MEMTXATTRS_UNSPECIFIED,
 405                       NULL);
 406
 407     num_vq = s390_virtio_device_num_vq(dev);
 408     address_space_stb(&address_space_memory,
 409                       dev->dev_offs + VIRTIO_DEV_OFFS_NUM_VQ, num_vq,
 410                       MEMTXATTRS_UNSPECIFIED, NULL);
 411
 412     /* Sync virtqueues */
 413     for (i = 0; i < num_vq; i++) {
 414         ram_addr_t vq = (dev->dev_offs + VIRTIO_DEV_OFFS_CONFIG) +
 415                         (i * VIRTIO_VQCONFIG_LEN);
 416         ram_addr_t vring;
 417
 418         vring = s390_virtio_next_ring(bus);
 419         virtio_queue_set_addr(dev->vdev, i, vring);
 420         virtio_queue_set_vector(dev->vdev, i, i);
 421         address_space_stq_be(&address_space_memory,
 422                              vq + VIRTIO_VQCONFIG_OFFS_ADDRESS, vring,
 423                              MEMTXATTRS_UNSPECIFIED, NULL);
 424         address_space_stw_be(&address_space_memory,
 425                              vq + VIRTIO_VQCONFIG_OFFS_NUM,
 426                              virtio_queue_get_num(dev->vdev, i),
 427                              MEMTXATTRS_UNSPECIFIED,
 428                              NULL);
 429     }
 430
 431     cur_offs = dev->dev_offs;
 432     cur_offs += VIRTIO_DEV_OFFS_CONFIG;
 433     cur_offs += num_vq * VIRTIO_VQCONFIG_LEN;
 434
 435     /* Sync feature bitmap */
 436     address_space_stl_le(&address_space_memory, cur_offs, dev->host_features,
 437                          MEMTXATTRS_UNSPECIFIED, NULL);
 438
 439     dev->feat_offs = cur_offs + dev->feat_len;
 440     cur_offs += dev->feat_len * 2;
 441
 442     /* Sync config space */
 443     virtio_bus_get_vdev_config(&dev->bus, dev->vdev->config);
 444
 445     cpu_physical_memory_write(cur_offs,
 446                               dev->vdev->config, dev->vdev->config_len);
 447     cur_offs += dev->vdev->config_len;
 448 }
 449
 450 void s390_virtio_device_update_status(VirtIOS390Device *dev)
 451 {
 452     VirtIODevice *vdev = dev->vdev;
 453     uint32_t features;
 454
 455     virtio_set_status(vdev,
 456                       address_space_ldub(&address_space_memory,
 457                                          dev->dev_offs + VIRTIO_DEV_OFFS_STATUS,
 458                                          MEMTXATTRS_UNSPECIFIED, NULL));
 459
 460     /* Update guest supported feature bitmap */
 461
 462     features = bswap32(address_space_ldl_be(&address_space_memory,
 463                                             dev->feat_offs,
 464                                             MEMTXATTRS_UNSPECIFIED, NULL));
 465     virtio_set_features(vdev, features);
 466 }
 467
 468 /* Find a device by vring address */
 469 VirtIOS390Device *s390_virtio_bus_find_vring(VirtIOS390Bus *bus,
 470                                              ram_addr_t mem,
 471                                              int *vq_num)
 472 {
 473     BusChild *kid;
 474     int i;
 475
 476     QTAILQ_FOREACH(kid, &bus->bus.children, sibling) {
 477         VirtIOS390Device *dev = (VirtIOS390Device *)kid->child;
 478
 479         for(i = 0; i < VIRTIO_PCI_QUEUE_MAX; i++) {
 480             if (!virtio_queue_get_addr(dev->vdev, i))
 481                 break;
 482             if (virtio_queue_get_addr(dev->vdev, i) == mem) {
 483                 if (vq_num) {
 484                     *vq_num = i;
 485                 }
 486                 return dev;
 487             }
 488         }
 489     }
 490
 491     return NULL;
 492 }
 493
 494 /* Find a device by device descriptor location */
 495 VirtIOS390Device *s390_virtio_bus_find_mem(VirtIOS390Bus *bus, ram_addr_t mem)
 496 {
 497     BusChild *kid;
 498
 499     QTAILQ_FOREACH(kid, &bus->bus.children, sibling) {
 500         VirtIOS390Device *dev = (VirtIOS390Device *)kid->child;
 501         if (dev->dev_offs == mem) {
 502             return dev;
 503         }
 504     }
 505
 506     return NULL;
 507 }
 508
 509 /* DeviceState to VirtIOS390Device. Note: used on datapath,
 510  * be careful and test performance if you change this.
 511  */
 512 static inline VirtIOS390Device *to_virtio_s390_device_fast(DeviceState *d)
 513 {
 514     return container_of(d, VirtIOS390Device, qdev);
 515 }
 516
 517 /* DeviceState to VirtIOS390Device. TODO: use QOM. */
 518 static inline VirtIOS390Device *to_virtio_s390_device(DeviceState *d)
 519 {
 520     return container_of(d, VirtIOS390Device, qdev);
 521 }
 522
 523 static void virtio_s390_notify(DeviceState *d, uint16_t vector)
 524 {
 525     VirtIOS390Device *dev = to_virtio_s390_device_fast(d);
 526     uint64_t token = s390_virtio_device_vq_token(dev, vector);
 527
 528     s390_virtio_irq(0, token);
 529 }
 530
 531 static unsigned virtio_s390_get_features(DeviceState *d)
 532 {
 533     VirtIOS390Device *dev = to_virtio_s390_device(d);
 534     return dev->host_features;
 535 }
 536
 537 /**************** S390 Virtio Bus Device Descriptions *******************/
 538
 539 static void s390_virtio_net_class_init(ObjectClass *klass, void *data)
 540 {
 541     DeviceClass *dc = DEVICE_CLASS(klass);
 542     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
 543
 544     k->realize = s390_virtio_net_realize;
 545     set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
 546 }
 547
 548 static const TypeInfo s390_virtio_net = {
 549     .name          = TYPE_VIRTIO_NET_S390,
 550     .parent        = TYPE_VIRTIO_S390_DEVICE,
 551     .instance_size = sizeof(VirtIONetS390),
 552     .instance_init = s390_virtio_net_instance_init,
 553     .class_init    = s390_virtio_net_class_init,
 554 };
 555
 556 static void s390_virtio_blk_class_init(ObjectClass *klass, void *data)
 557 {
 558     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
 559     DeviceClass *dc = DEVICE_CLASS(klass);
 560
 561     k->realize = s390_virtio_blk_realize;
 562     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
 563 }
 564
 565 static const TypeInfo s390_virtio_blk = {
 566     .name          = "virtio-blk-s390",
 567     .parent        = TYPE_VIRTIO_S390_DEVICE,
 568     .instance_size = sizeof(VirtIOBlkS390),
 569     .instance_init = s390_virtio_blk_instance_init,
 570     .class_init    = s390_virtio_blk_class_init,
 571 };
 572
 573 static Property s390_virtio_serial_properties[] = {
 574     DEFINE_PROP_END_OF_LIST(),
 575 };
 576
 577 static void s390_virtio_serial_class_init(ObjectClass *klass, void *data)
 578 {
 579     DeviceClass *dc = DEVICE_CLASS(klass);
 580     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
 581
 582     k->realize = s390_virtio_serial_realize;
 583     dc->props = s390_virtio_serial_properties;
 584     set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
 585 }
 586
 587 static const TypeInfo s390_virtio_serial = {
 588     .name          = TYPE_VIRTIO_SERIAL_S390,
 589     .parent        = TYPE_VIRTIO_S390_DEVICE,
 590     .instance_size = sizeof(VirtIOSerialS390),
 591     .instance_init = s390_virtio_serial_instance_init,
 592     .class_init    = s390_virtio_serial_class_init,
 593 };
 594
 595 static void s390_virtio_rng_class_init(ObjectClass *klass, void *data)
 596 {
 597     DeviceClass *dc = DEVICE_CLASS(klass);
 598     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
 599
 600     k->realize = s390_virtio_rng_realize;
 601     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
 602 }
 603
 604 static const TypeInfo s390_virtio_rng = {
 605     .name          = TYPE_VIRTIO_RNG_S390,
 606     .parent        = TYPE_VIRTIO_S390_DEVICE,
 607     .instance_size = sizeof(VirtIORNGS390),
 608     .instance_init = s390_virtio_rng_instance_init,
 609     .class_init    = s390_virtio_rng_class_init,
 610 };
 611
 612 static void s390_virtio_busdev_realize(DeviceState *dev, Error **errp)
 613 {
 614     VirtIOS390Device *_dev = (VirtIOS390Device *)dev;
 615     VirtIOS390DeviceClass *_info = VIRTIO_S390_DEVICE_GET_CLASS(dev);
 616
 617     virtio_s390_bus_new(&_dev->bus, sizeof(_dev->bus), _dev);
 618
 619     _info->realize(_dev, errp);
 620 }
 621
 622 static void s390_virtio_busdev_reset(DeviceState *dev)
 623 {
 624     VirtIOS390Device *_dev = (VirtIOS390Device *)dev;
 625
 626     virtio_reset(_dev->vdev);
 627 }
 628
 629 static Property virtio_s390_properties[] = {
 630     DEFINE_VIRTIO_COMMON_FEATURES(VirtIOS390Device, host_features),
 631     DEFINE_PROP_END_OF_LIST(),
 632 };
 633
 634 static void virtio_s390_device_class_init(ObjectClass *klass, void *data)
 635 {
 636     DeviceClass *dc = DEVICE_CLASS(klass);
 637
 638     dc->props = virtio_s390_properties;
 639     dc->realize = s390_virtio_busdev_realize;
 640     dc->bus_type = TYPE_S390_VIRTIO_BUS;
 641     dc->reset = s390_virtio_busdev_reset;
 642 }
 643
 644 static const TypeInfo virtio_s390_device_info = {
 645     .name = TYPE_VIRTIO_S390_DEVICE,
 646     .parent = TYPE_DEVICE,
 647     .instance_size = sizeof(VirtIOS390Device),
 648     .class_init = virtio_s390_device_class_init,
 649     .class_size = sizeof(VirtIOS390DeviceClass),
 650     .abstract = true,
 651 };
 652
 653 static void s390_virtio_scsi_class_init(ObjectClass *klass, void *data)
 654 {
 655     DeviceClass *dc = DEVICE_CLASS(klass);
 656     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
 657
 658     k->realize = s390_virtio_scsi_realize;
 659     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
 660 }
 661
 662 static const TypeInfo s390_virtio_scsi = {
 663     .name          = TYPE_VIRTIO_SCSI_S390,
 664     .parent        = TYPE_VIRTIO_S390_DEVICE,
 665     .instance_size = sizeof(VirtIOSCSIS390),
 666     .instance_init = s390_virtio_scsi_instance_init,
 667     .class_init    = s390_virtio_scsi_class_init,
 668 };
 669
 670 #ifdef CONFIG_VHOST_SCSI
 671 static void s390_vhost_scsi_class_init(ObjectClass *klass, void *data)
 672 {
 673     DeviceClass *dc = DEVICE_CLASS(klass);
 674     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
 675
 676     k->realize = s390_vhost_scsi_realize;
 677     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
 678 }
 679
 680 static const TypeInfo s390_vhost_scsi = {
 681     .name          = TYPE_VHOST_SCSI_S390,
 682     .parent        = TYPE_VIRTIO_S390_DEVICE,
 683     .instance_size = sizeof(VHostSCSIS390),
 684     .instance_init = s390_vhost_scsi_instance_init,
 685     .class_init    = s390_vhost_scsi_class_init,
 686 };
 687 #endif
 688
 689 /***************** S390 Virtio Bus Bridge Device *******************/
 690 /* Only required to have the virtio bus as child in the system bus */
 691
 692 static int s390_virtio_bridge_init(SysBusDevice *dev)
 693 {
 694     /* nothing */
 695     return 0;
 696 }
 697
 698 static void s390_virtio_bridge_class_init(ObjectClass *klass, void *data)
 699 {
 700     SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 701     DeviceClass *dc = DEVICE_CLASS(klass);
 702
 703     k->init = s390_virtio_bridge_init;
 704     set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
 705 }
 706
 707 static const TypeInfo s390_virtio_bridge_info = {
 708     .name          = "s390-virtio-bridge",
 709     .parent        = TYPE_SYS_BUS_DEVICE,
 710     .instance_size = sizeof(SysBusDevice),
 711     .class_init    = s390_virtio_bridge_class_init,
 712     .interfaces = (InterfaceInfo[]) {
 713         { TYPE_HOTPLUG_HANDLER },
 714         { }
 715     }
 716 };
 717
 718 /* virtio-s390-bus */
 719
 720 static void virtio_s390_bus_new(VirtioBusState *bus, size_t bus_size,
 721                                 VirtIOS390Device *dev)
 722 {
 723     DeviceState *qdev = DEVICE(dev);
 724     char virtio_bus_name[] = "virtio-bus";
 725
 726     qbus_create_inplace(bus, bus_size, TYPE_VIRTIO_S390_BUS,
 727                         qdev, virtio_bus_name);
 728 }
 729
 730 static void virtio_s390_bus_class_init(ObjectClass *klass, void *data)
 731 {
 732     VirtioBusClass *k = VIRTIO_BUS_CLASS(klass);
 733     BusClass *bus_class = BUS_CLASS(klass);
 734     bus_class->max_dev = 1;
 735     k->notify = virtio_s390_notify;
 736     k->get_features = virtio_s390_get_features;
 737 }
 738
 739 static const TypeInfo virtio_s390_bus_info = {
 740     .name          = TYPE_VIRTIO_S390_BUS,
 741     .parent        = TYPE_VIRTIO_BUS,
 742     .instance_size = sizeof(VirtioS390BusState),
 743     .class_init    = virtio_s390_bus_class_init,
 744 };
 745
 746 static void s390_virtio_register_types(void)
 747 {
 748     type_register_static(&virtio_s390_bus_info);
 749     type_register_static(&s390_virtio_bus_info);
 750     type_register_static(&virtio_s390_device_info);
 751     type_register_static(&s390_virtio_serial);
 752     type_register_static(&s390_virtio_blk);
 753     type_register_static(&s390_virtio_net);
 754     type_register_static(&s390_virtio_scsi);
 755 #ifdef CONFIG_VHOST_SCSI
 756     type_register_static(&s390_vhost_scsi);
 757 #endif
 758     type_register_static(&s390_virtio_rng);
 759     type_register_static(&s390_virtio_bridge_info);
 760 }
 761
 762 type_init(s390_virtio_register_types)