hw/virtio-pci.c

   1 /*
   2  * Virtio PCI Bindings
   3  *
   4  * Copyright IBM, Corp. 2007
   5  * Copyright (c) 2009 CodeSourcery
   6  *
   7  * Authors:
   8  *  Anthony Liguori   <aliguori@us.ibm.com>
   9  *  Paul Brook        <paul@codesourcery.com>
  10  *
  11  * This work is licensed under the terms of the GNU GPL, version 2.  See
  12  * the COPYING file in the top-level directory.
  13  *
  14  */
  15
  16 #include <inttypes.h>
  17
  18 #include "virtio.h"
  19 #include "virtio-blk.h"
  20 #include "virtio-net.h"
  21 #include "pci.h"
  22 #include "qemu-error.h"
  23 #include "msix.h"
  24 #include "net.h"
  25 #include "block_int.h"
  26 #include "loader.h"
  27
  28 /* from Linux's linux/virtio_pci.h */
  29
  30 /* A 32-bit r/o bitmask of the features supported by the host */
  31 #define VIRTIO_PCI_HOST_FEATURES        0
  32
  33 /* A 32-bit r/w bitmask of features activated by the guest */
  34 #define VIRTIO_PCI_GUEST_FEATURES       4
  35
  36 /* A 32-bit r/w PFN for the currently selected queue */
  37 #define VIRTIO_PCI_QUEUE_PFN            8
  38
  39 /* A 16-bit r/o queue size for the currently selected queue */
  40 #define VIRTIO_PCI_QUEUE_NUM            12
  41
  42 /* A 16-bit r/w queue selector */
  43 #define VIRTIO_PCI_QUEUE_SEL            14
  44
  45 /* A 16-bit r/w queue notifier */
  46 #define VIRTIO_PCI_QUEUE_NOTIFY         16
  47
  48 /* An 8-bit device status register.  */
  49 #define VIRTIO_PCI_STATUS               18
  50
  51 /* An 8-bit r/o interrupt status register.  Reading the value will return the
  52  * current contents of the ISR and will also clear it.  This is effectively
  53  * a read-and-acknowledge. */
  54 #define VIRTIO_PCI_ISR                  19
  55
  56 /* MSI-X registers: only enabled if MSI-X is enabled. */
  57 /* A 16-bit vector for configuration changes. */
  58 #define VIRTIO_MSI_CONFIG_VECTOR        20
  59 /* A 16-bit vector for selected queue notifications. */
  60 #define VIRTIO_MSI_QUEUE_VECTOR         22
  61
  62 /* Config space size */
  63 #define VIRTIO_PCI_CONFIG_NOMSI         20
  64 #define VIRTIO_PCI_CONFIG_MSI           24
  65 #define VIRTIO_PCI_REGION_SIZE(dev)     (msix_present(dev) ? \
  66                                          VIRTIO_PCI_CONFIG_MSI : \
  67                                          VIRTIO_PCI_CONFIG_NOMSI)
  68
  69 /* The remaining space is defined by each driver as the per-driver
  70  * configuration space */
  71 #define VIRTIO_PCI_CONFIG(dev)          (msix_enabled(dev) ? \
  72                                          VIRTIO_PCI_CONFIG_MSI : \
  73                                          VIRTIO_PCI_CONFIG_NOMSI)
  74
  75 /* Virtio ABI version, if we increment this, we break the guest driver. */
  76 #define VIRTIO_PCI_ABI_VERSION          0
  77
  78 /* How many bits to shift physical queue address written to QUEUE_PFN.
  79  * 12 is historical, and due to x86 page size. */
  80 #define VIRTIO_PCI_QUEUE_ADDR_SHIFT    12
  81
  82 /* QEMU doesn't strictly need write barriers since everything runs in
  83  * lock-step.  We'll leave the calls to wmb() in though to make it obvious for
  84  * KVM or if kqemu gets SMP support.
  85  */
  86 #define wmb() do { } while (0)
  87
  88 /* PCI bindings.  */
  89
  90 typedef struct {
  91     PCIDevice pci_dev;
  92     VirtIODevice *vdev;
  93     uint32_t addr;
  94     uint32_t class_code;
  95     uint32_t nvectors;
  96     BlockConf block;
  97     NICConf nic;
  98     uint32_t host_features;
  99     /* Max. number of ports we can have for a the virtio-serial device */
 100     uint32_t max_virtserial_ports;
 101 } VirtIOPCIProxy;
 102
 103 /* virtio device */
 104
 105 static void virtio_pci_notify(void *opaque, uint16_t vector)
 106 {
 107     VirtIOPCIProxy *proxy = opaque;
 108     if (msix_enabled(&proxy->pci_dev))
 109         msix_notify(&proxy->pci_dev, vector);
 110     else
 111         qemu_set_irq(proxy->pci_dev.irq[0], proxy->vdev->isr & 1);
 112 }
 113
 114 static void virtio_pci_save_config(void * opaque, QEMUFile *f)
 115 {
 116     VirtIOPCIProxy *proxy = opaque;
 117     pci_device_save(&proxy->pci_dev, f);
 118     msix_save(&proxy->pci_dev, f);
 119     if (msix_present(&proxy->pci_dev))
 120         qemu_put_be16(f, proxy->vdev->config_vector);
 121 }
 122
 123 static void virtio_pci_save_queue(void * opaque, int n, QEMUFile *f)
 124 {
 125     VirtIOPCIProxy *proxy = opaque;
 126     if (msix_present(&proxy->pci_dev))
 127         qemu_put_be16(f, virtio_queue_vector(proxy->vdev, n));
 128 }
 129
 130 static int virtio_pci_load_config(void * opaque, QEMUFile *f)
 131 {
 132     VirtIOPCIProxy *proxy = opaque;
 133     int ret;
 134     ret = pci_device_load(&proxy->pci_dev, f);
 135     if (ret) {
 136         return ret;
 137     }
 138     msix_load(&proxy->pci_dev, f);
 139     if (msix_present(&proxy->pci_dev)) {
 140         qemu_get_be16s(f, &proxy->vdev->config_vector);
 141     } else {
 142         proxy->vdev->config_vector = VIRTIO_NO_VECTOR;
 143     }
 144     if (proxy->vdev->config_vector != VIRTIO_NO_VECTOR) {
 145         return msix_vector_use(&proxy->pci_dev, proxy->vdev->config_vector);
 146     }
 147     return 0;
 148 }
 149
 150 static int virtio_pci_load_queue(void * opaque, int n, QEMUFile *f)
 151 {
 152     VirtIOPCIProxy *proxy = opaque;
 153     uint16_t vector;
 154     if (msix_present(&proxy->pci_dev)) {
 155         qemu_get_be16s(f, &vector);
 156     } else {
 157         vector = VIRTIO_NO_VECTOR;
 158     }
 159     virtio_queue_set_vector(proxy->vdev, n, vector);
 160     if (vector != VIRTIO_NO_VECTOR) {
 161         return msix_vector_use(&proxy->pci_dev, vector);
 162     }
 163     return 0;
 164 }
 165
 166 static void virtio_pci_reset(DeviceState *d)
 167 {
 168     VirtIOPCIProxy *proxy = container_of(d, VirtIOPCIProxy, pci_dev.qdev);
 169     virtio_reset(proxy->vdev);
 170     msix_reset(&proxy->pci_dev);
 171 }
 172
 173 static void virtio_ioport_write(void *opaque, uint32_t addr, uint32_t val)
 174 {
 175     VirtIOPCIProxy *proxy = opaque;
 176     VirtIODevice *vdev = proxy->vdev;
 177     target_phys_addr_t pa;
 178
 179     switch (addr) {
 180     case VIRTIO_PCI_GUEST_FEATURES:
 181         /* Guest does not negotiate properly?  We have to assume nothing. */
 182         if (val & (1 << VIRTIO_F_BAD_FEATURE)) {
 183             if (vdev->bad_features)
 184                 val = proxy->host_features & vdev->bad_features(vdev);
 185             else
 186                 val = 0;
 187         }
 188         if (vdev->set_features)
 189             vdev->set_features(vdev, val);
 190         vdev->guest_features = val;
 191         break;
 192     case VIRTIO_PCI_QUEUE_PFN:
 193         pa = (target_phys_addr_t)val << VIRTIO_PCI_QUEUE_ADDR_SHIFT;
 194         if (pa == 0) {
 195             virtio_reset(proxy->vdev);
 196             msix_unuse_all_vectors(&proxy->pci_dev);
 197         }
 198         else
 199             virtio_queue_set_addr(vdev, vdev->queue_sel, pa);
 200         break;
 201     case VIRTIO_PCI_QUEUE_SEL:
 202         if (val < VIRTIO_PCI_QUEUE_MAX)
 203             vdev->queue_sel = val;
 204         break;
 205     case VIRTIO_PCI_QUEUE_NOTIFY:
 206         virtio_queue_notify(vdev, val);
 207         break;
 208     case VIRTIO_PCI_STATUS:
 209         vdev->status = val & 0xFF;
 210         if (vdev->status == 0) {
 211             virtio_reset(proxy->vdev);
 212             msix_unuse_all_vectors(&proxy->pci_dev);
 213         }
 214         break;
 215     case VIRTIO_MSI_CONFIG_VECTOR:
 216         msix_vector_unuse(&proxy->pci_dev, vdev->config_vector);
 217         /* Make it possible for guest to discover an error took place. */
 218         if (msix_vector_use(&proxy->pci_dev, val) < 0)
 219             val = VIRTIO_NO_VECTOR;
 220         vdev->config_vector = val;
 221         break;
 222     case VIRTIO_MSI_QUEUE_VECTOR:
 223         msix_vector_unuse(&proxy->pci_dev,
 224                           virtio_queue_vector(vdev, vdev->queue_sel));
 225         /* Make it possible for guest to discover an error took place. */
 226         if (msix_vector_use(&proxy->pci_dev, val) < 0)
 227             val = VIRTIO_NO_VECTOR;
 228         virtio_queue_set_vector(vdev, vdev->queue_sel, val);
 229         break;
 230     default:
 231         fprintf(stderr, "%s: unexpected address 0x%x value 0x%x\n",
 232                 __func__, addr, val);
 233         break;
 234     }
 235 }
 236
 237 static uint32_t virtio_ioport_read(VirtIOPCIProxy *proxy, uint32_t addr)
 238 {
 239     VirtIODevice *vdev = proxy->vdev;
 240     uint32_t ret = 0xFFFFFFFF;
 241
 242     switch (addr) {
 243     case VIRTIO_PCI_HOST_FEATURES:
 244         ret = proxy->host_features;
 245         break;
 246     case VIRTIO_PCI_GUEST_FEATURES:
 247         ret = vdev->guest_features;
 248         break;
 249     case VIRTIO_PCI_QUEUE_PFN:
 250         ret = virtio_queue_get_addr(vdev, vdev->queue_sel)
 251               >> VIRTIO_PCI_QUEUE_ADDR_SHIFT;
 252         break;
 253     case VIRTIO_PCI_QUEUE_NUM:
 254         ret = virtio_queue_get_num(vdev, vdev->queue_sel);
 255         break;
 256     case VIRTIO_PCI_QUEUE_SEL:
 257         ret = vdev->queue_sel;
 258         break;
 259     case VIRTIO_PCI_STATUS:
 260         ret = vdev->status;
 261         break;
 262     case VIRTIO_PCI_ISR:
 263         /* reading from the ISR also clears it. */
 264         ret = vdev->isr;
 265         vdev->isr = 0;
 266         qemu_set_irq(proxy->pci_dev.irq[0], 0);
 267         break;
 268     case VIRTIO_MSI_CONFIG_VECTOR:
 269         ret = vdev->config_vector;
 270         break;
 271     case VIRTIO_MSI_QUEUE_VECTOR:
 272         ret = virtio_queue_vector(vdev, vdev->queue_sel);
 273         break;
 274     default:
 275         break;
 276     }
 277
 278     return ret;
 279 }
 280
 281 static uint32_t virtio_pci_config_readb(void *opaque, uint32_t addr)
 282 {
 283     VirtIOPCIProxy *proxy = opaque;
 284     uint32_t config = VIRTIO_PCI_CONFIG(&proxy->pci_dev);
 285     addr -= proxy->addr;
 286     if (addr < config)
 287         return virtio_ioport_read(proxy, addr);
 288     addr -= config;
 289     return virtio_config_readb(proxy->vdev, addr);
 290 }
 291
 292 static uint32_t virtio_pci_config_readw(void *opaque, uint32_t addr)
 293 {
 294     VirtIOPCIProxy *proxy = opaque;
 295     uint32_t config = VIRTIO_PCI_CONFIG(&proxy->pci_dev);
 296     addr -= proxy->addr;
 297     if (addr < config)
 298         return virtio_ioport_read(proxy, addr);
 299     addr -= config;
 300     return virtio_config_readw(proxy->vdev, addr);
 301 }
 302
 303 static uint32_t virtio_pci_config_readl(void *opaque, uint32_t addr)
 304 {
 305     VirtIOPCIProxy *proxy = opaque;
 306     uint32_t config = VIRTIO_PCI_CONFIG(&proxy->pci_dev);
 307     addr -= proxy->addr;
 308     if (addr < config)
 309         return virtio_ioport_read(proxy, addr);
 310     addr -= config;
 311     return virtio_config_readl(proxy->vdev, addr);
 312 }
 313
 314 static void virtio_pci_config_writeb(void *opaque, uint32_t addr, uint32_t val)
 315 {
 316     VirtIOPCIProxy *proxy = opaque;
 317     uint32_t config = VIRTIO_PCI_CONFIG(&proxy->pci_dev);
 318     addr -= proxy->addr;
 319     if (addr < config) {
 320         virtio_ioport_write(proxy, addr, val);
 321         return;
 322     }
 323     addr -= config;
 324     virtio_config_writeb(proxy->vdev, addr, val);
 325 }
 326
 327 static void virtio_pci_config_writew(void *opaque, uint32_t addr, uint32_t val)
 328 {
 329     VirtIOPCIProxy *proxy = opaque;
 330     uint32_t config = VIRTIO_PCI_CONFIG(&proxy->pci_dev);
 331     addr -= proxy->addr;
 332     if (addr < config) {
 333         virtio_ioport_write(proxy, addr, val);
 334         return;
 335     }
 336     addr -= config;
 337     virtio_config_writew(proxy->vdev, addr, val);
 338 }
 339
 340 static void virtio_pci_config_writel(void *opaque, uint32_t addr, uint32_t val)
 341 {
 342     VirtIOPCIProxy *proxy = opaque;
 343     uint32_t config = VIRTIO_PCI_CONFIG(&proxy->pci_dev);
 344     addr -= proxy->addr;
 345     if (addr < config) {
 346         virtio_ioport_write(proxy, addr, val);
 347         return;
 348     }
 349     addr -= config;
 350     virtio_config_writel(proxy->vdev, addr, val);
 351 }
 352
 353 static void virtio_map(PCIDevice *pci_dev, int region_num,
 354                        pcibus_t addr, pcibus_t size, int type)
 355 {
 356     VirtIOPCIProxy *proxy = container_of(pci_dev, VirtIOPCIProxy, pci_dev);
 357     VirtIODevice *vdev = proxy->vdev;
 358     unsigned config_len = VIRTIO_PCI_REGION_SIZE(pci_dev) + vdev->config_len;
 359
 360     proxy->addr = addr;
 361
 362     register_ioport_write(addr, config_len, 1, virtio_pci_config_writeb, proxy);
 363     register_ioport_write(addr, config_len, 2, virtio_pci_config_writew, proxy);
 364     register_ioport_write(addr, config_len, 4, virtio_pci_config_writel, proxy);
 365     register_ioport_read(addr, config_len, 1, virtio_pci_config_readb, proxy);
 366     register_ioport_read(addr, config_len, 2, virtio_pci_config_readw, proxy);
 367     register_ioport_read(addr, config_len, 4, virtio_pci_config_readl, proxy);
 368
 369     if (vdev->config_len)
 370         vdev->get_config(vdev, vdev->config);
 371 }
 372
 373 static void virtio_write_config(PCIDevice *pci_dev, uint32_t address,
 374                                 uint32_t val, int len)
 375 {
 376     VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
 377
 378     if (PCI_COMMAND == address) {
 379         if (!(val & PCI_COMMAND_MASTER)) {
 380             proxy->vdev->status &= ~VIRTIO_CONFIG_S_DRIVER_OK;
 381         }
 382     }
 383
 384     pci_default_write_config(pci_dev, address, val, len);
 385     msix_write_config(pci_dev, address, val, len);
 386 }
 387
 388 static unsigned virtio_pci_get_features(void *opaque)
 389 {
 390     VirtIOPCIProxy *proxy = opaque;
 391     return proxy->host_features;
 392 }
 393
 394 static const VirtIOBindings virtio_pci_bindings = {
 395     .notify = virtio_pci_notify,
 396     .save_config = virtio_pci_save_config,
 397     .load_config = virtio_pci_load_config,
 398     .save_queue = virtio_pci_save_queue,
 399     .load_queue = virtio_pci_load_queue,
 400     .get_features = virtio_pci_get_features,
 401 };
 402
 403 static void virtio_init_pci(VirtIOPCIProxy *proxy, VirtIODevice *vdev,
 404                             uint16_t vendor, uint16_t device,
 405                             uint16_t class_code, uint8_t pif)
 406 {
 407     uint8_t *config;
 408     uint32_t size;
 409
 410     proxy->vdev = vdev;
 411
 412     config = proxy->pci_dev.config;
 413     pci_config_set_vendor_id(config, vendor);
 414     pci_config_set_device_id(config, device);
 415
 416     config[0x08] = VIRTIO_PCI_ABI_VERSION;
 417
 418     config[0x09] = pif;
 419     pci_config_set_class(config, class_code);
 420     config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL;
 421
 422     config[0x2c] = vendor & 0xFF;
 423     config[0x2d] = (vendor >> 8) & 0xFF;
 424     config[0x2e] = vdev->device_id & 0xFF;
 425     config[0x2f] = (vdev->device_id >> 8) & 0xFF;
 426
 427     config[0x3d] = 1;
 428
 429     if (vdev->nvectors && !msix_init(&proxy->pci_dev, vdev->nvectors, 1, 0)) {
 430         pci_register_bar(&proxy->pci_dev, 1,
 431                          msix_bar_size(&proxy->pci_dev),
 432                          PCI_BASE_ADDRESS_SPACE_MEMORY,
 433                          msix_mmio_map);
 434     } else
 435         vdev->nvectors = 0;
 436
 437     proxy->pci_dev.config_write = virtio_write_config;
 438
 439     size = VIRTIO_PCI_REGION_SIZE(&proxy->pci_dev) + vdev->config_len;
 440     if (size & (size-1))
 441         size = 1 << qemu_fls(size);
 442
 443     pci_register_bar(&proxy->pci_dev, 0, size, PCI_BASE_ADDRESS_SPACE_IO,
 444                            virtio_map);
 445
 446     virtio_bind_device(vdev, &virtio_pci_bindings, proxy);
 447     proxy->host_features |= 0x1 << VIRTIO_F_NOTIFY_ON_EMPTY;
 448     proxy->host_features |= 0x1 << VIRTIO_F_BAD_FEATURE;
 449     proxy->host_features = vdev->get_features(vdev, proxy->host_features);
 450 }
 451
 452 static int virtio_blk_init_pci(PCIDevice *pci_dev)
 453 {
 454     VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
 455     VirtIODevice *vdev;
 456
 457     if (proxy->class_code != PCI_CLASS_STORAGE_SCSI &&
 458         proxy->class_code != PCI_CLASS_STORAGE_OTHER)
 459         proxy->class_code = PCI_CLASS_STORAGE_SCSI;
 460
 461     if (!proxy->block.dinfo) {
 462         error_report("virtio-blk-pci: drive property not set");
 463         return -1;
 464     }
 465     vdev = virtio_blk_init(&pci_dev->qdev, &proxy->block);
 466     vdev->nvectors = proxy->nvectors;
 467     virtio_init_pci(proxy, vdev,
 468                     PCI_VENDOR_ID_REDHAT_QUMRANET,
 469                     PCI_DEVICE_ID_VIRTIO_BLOCK,
 470                     proxy->class_code, 0x00);
 471     /* make the actual value visible */
 472     proxy->nvectors = vdev->nvectors;
 473     return 0;
 474 }
 475
 476 static int virtio_exit_pci(PCIDevice *pci_dev)
 477 {
 478     return msix_uninit(pci_dev);
 479 }
 480
 481 static int virtio_blk_exit_pci(PCIDevice *pci_dev)
 482 {
 483     VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
 484
 485     drive_uninit(proxy->block.dinfo);
 486     return virtio_exit_pci(pci_dev);
 487 }
 488
 489 static int virtio_serial_init_pci(PCIDevice *pci_dev)
 490 {
 491     VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
 492     VirtIODevice *vdev;
 493
 494     if (proxy->class_code != PCI_CLASS_COMMUNICATION_OTHER &&
 495         proxy->class_code != PCI_CLASS_DISPLAY_OTHER && /* qemu 0.10 */
 496         proxy->class_code != PCI_CLASS_OTHERS)          /* qemu-kvm  */
 497         proxy->class_code = PCI_CLASS_COMMUNICATION_OTHER;
 498
 499     vdev = virtio_serial_init(&pci_dev->qdev, proxy->max_virtserial_ports);
 500     if (!vdev) {
 501         return -1;
 502     }
 503     vdev->nvectors = proxy->nvectors == DEV_NVECTORS_UNSPECIFIED
 504                                         ? proxy->max_virtserial_ports + 1
 505                                         : proxy->nvectors;
 506     virtio_init_pci(proxy, vdev,
 507                     PCI_VENDOR_ID_REDHAT_QUMRANET,
 508                     PCI_DEVICE_ID_VIRTIO_CONSOLE,
 509                     proxy->class_code, 0x00);
 510     proxy->nvectors = vdev->nvectors;
 511     return 0;
 512 }
 513
 514 static int virtio_net_init_pci(PCIDevice *pci_dev)
 515 {
 516     VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
 517     VirtIODevice *vdev;
 518
 519     vdev = virtio_net_init(&pci_dev->qdev, &proxy->nic);
 520
 521     vdev->nvectors = proxy->nvectors;
 522     virtio_init_pci(proxy, vdev,
 523                     PCI_VENDOR_ID_REDHAT_QUMRANET,
 524                     PCI_DEVICE_ID_VIRTIO_NET,
 525                     PCI_CLASS_NETWORK_ETHERNET,
 526                     0x00);
 527
 528     /* make the actual value visible */
 529     proxy->nvectors = vdev->nvectors;
 530     return 0;
 531 }
 532
 533 static int virtio_net_exit_pci(PCIDevice *pci_dev)
 534 {
 535     VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
 536
 537     virtio_net_exit(proxy->vdev);
 538     return virtio_exit_pci(pci_dev);
 539 }
 540
 541 static int virtio_balloon_init_pci(PCIDevice *pci_dev)
 542 {
 543     VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
 544     VirtIODevice *vdev;
 545
 546     vdev = virtio_balloon_init(&pci_dev->qdev);
 547     virtio_init_pci(proxy, vdev,
 548                     PCI_VENDOR_ID_REDHAT_QUMRANET,
 549                     PCI_DEVICE_ID_VIRTIO_BALLOON,
 550                     PCI_CLASS_MEMORY_RAM,
 551                     0x00);
 552     return 0;
 553 }
 554
 555 static PCIDeviceInfo virtio_info[] = {
 556     {
 557         .qdev.name = "virtio-blk-pci",
 558         .qdev.size = sizeof(VirtIOPCIProxy),
 559         .init      = virtio_blk_init_pci,
 560         .exit      = virtio_blk_exit_pci,
 561         .qdev.props = (Property[]) {
 562             DEFINE_PROP_HEX32("class", VirtIOPCIProxy, class_code, 0),
 563             DEFINE_BLOCK_PROPERTIES(VirtIOPCIProxy, block),
 564             DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
 565             DEFINE_VIRTIO_BLK_FEATURES(VirtIOPCIProxy, host_features),
 566             DEFINE_PROP_END_OF_LIST(),
 567         },
 568         .qdev.reset = virtio_pci_reset,
 569     },{
 570         .qdev.name  = "virtio-net-pci",
 571         .qdev.size  = sizeof(VirtIOPCIProxy),
 572         .init       = virtio_net_init_pci,
 573         .exit       = virtio_net_exit_pci,
 574         .romfile    = "pxe-virtio.bin",
 575         .qdev.props = (Property[]) {
 576             DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 3),
 577             DEFINE_VIRTIO_NET_FEATURES(VirtIOPCIProxy, host_features),
 578             DEFINE_NIC_PROPERTIES(VirtIOPCIProxy, nic),
 579             DEFINE_PROP_END_OF_LIST(),
 580         },
 581         .qdev.reset = virtio_pci_reset,
 582     },{
 583         .qdev.name = "virtio-serial-pci",
 584         .qdev.alias = "virtio-serial",
 585         .qdev.size = sizeof(VirtIOPCIProxy),
 586         .init      = virtio_serial_init_pci,
 587         .exit      = virtio_exit_pci,
 588         .qdev.props = (Property[]) {
 589             DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
 590                                DEV_NVECTORS_UNSPECIFIED),
 591             DEFINE_PROP_HEX32("class", VirtIOPCIProxy, class_code, 0),
 592             DEFINE_VIRTIO_COMMON_FEATURES(VirtIOPCIProxy, host_features),
 593             DEFINE_PROP_UINT32("max_ports", VirtIOPCIProxy, max_virtserial_ports,
 594                                31),
 595             DEFINE_PROP_END_OF_LIST(),
 596         },
 597         .qdev.reset = virtio_pci_reset,
 598     },{
 599         .qdev.name = "virtio-balloon-pci",
 600         .qdev.size = sizeof(VirtIOPCIProxy),
 601         .init      = virtio_balloon_init_pci,
 602         .exit      = virtio_exit_pci,
 603         .qdev.props = (Property[]) {
 604             DEFINE_VIRTIO_COMMON_FEATURES(VirtIOPCIProxy, host_features),
 605             DEFINE_PROP_END_OF_LIST(),
 606         },
 607         .qdev.reset = virtio_pci_reset,
 608     },{
 609         /* end of list */
 610     }
 611 };
 612
 613 static void virtio_pci_register_devices(void)
 614 {
 615     pci_qdev_register_many(virtio_info);
 616 }
 617
 618 device_init(virtio_pci_register_devices)