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