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