LXR qemu/hw/virtio/virtio-balloon-pci.c

   1/*
   2 * Virtio balloon 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 * Contributions after 2012-01-13 are licensed under the terms of the
  12 * GNU GPL, version 2 or (at your option) any later version.
  13 */
  14
  15#include "qemu/osdep.h"
  16
  17#include "virtio-pci.h"
  18#include "hw/virtio/virtio-balloon.h"
  19#include "qapi/error.h"
  20
  21typedef struct VirtIOBalloonPCI VirtIOBalloonPCI;
  22
  23/*
  24 * virtio-balloon-pci: This extends VirtioPCIProxy.
  25 */
  26#define TYPE_VIRTIO_BALLOON_PCI "virtio-balloon-pci-base"
  27#define VIRTIO_BALLOON_PCI(obj) \
  28        OBJECT_CHECK(VirtIOBalloonPCI, (obj), TYPE_VIRTIO_BALLOON_PCI)
  29
  30struct VirtIOBalloonPCI {
  31    VirtIOPCIProxy parent_obj;
  32    VirtIOBalloon vdev;
  33};
  34static Property virtio_balloon_pci_properties[] = {
  35    DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0),
  36    DEFINE_PROP_END_OF_LIST(),
  37};
  38
  39static void virtio_balloon_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
  40{
  41    VirtIOBalloonPCI *dev = VIRTIO_BALLOON_PCI(vpci_dev);
  42    DeviceState *vdev = DEVICE(&dev->vdev);
  43
  44    if (vpci_dev->class_code != PCI_CLASS_OTHERS &&
  45        vpci_dev->class_code != PCI_CLASS_MEMORY_RAM) { /* qemu < 1.1 */
  46        vpci_dev->class_code = PCI_CLASS_OTHERS;
  47    }
  48
  49    qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
  50    object_property_set_bool(OBJECT(vdev), true, "realized", errp);
  51}
  52
  53static void virtio_balloon_pci_class_init(ObjectClass *klass, void *data)
  54{
  55    DeviceClass *dc = DEVICE_CLASS(klass);
  56    VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
  57    PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
  58    k->realize = virtio_balloon_pci_realize;
  59    set_bit(DEVICE_CATEGORY_MISC, dc->categories);
  60    dc->props = virtio_balloon_pci_properties;
  61    pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
  62    pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_BALLOON;
  63    pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;
  64    pcidev_k->class_id = PCI_CLASS_OTHERS;
  65}
  66
  67static void virtio_balloon_pci_instance_init(Object *obj)
  68{
  69    VirtIOBalloonPCI *dev = VIRTIO_BALLOON_PCI(obj);
  70
  71    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  72                                TYPE_VIRTIO_BALLOON);
  73    object_property_add_alias(obj, "guest-stats", OBJECT(&dev->vdev),
  74                                  "guest-stats", &error_abort);
  75    object_property_add_alias(obj, "guest-stats-polling-interval",
  76                              OBJECT(&dev->vdev),
  77                              "guest-stats-polling-interval", &error_abort);
  78}
  79
  80static const VirtioPCIDeviceTypeInfo virtio_balloon_pci_info = {
  81    .base_name             = TYPE_VIRTIO_BALLOON_PCI,
  82    .generic_name          = "virtio-balloon-pci",
  83    .transitional_name     = "virtio-balloon-pci-transitional",
  84    .non_transitional_name = "virtio-balloon-pci-non-transitional",
  85    .instance_size = sizeof(VirtIOBalloonPCI),
  86    .instance_init = virtio_balloon_pci_instance_init,
  87    .class_init    = virtio_balloon_pci_class_init,
  88};
  89
  90static void virtio_balloon_pci_register(void)
  91{
  92    virtio_pci_types_register(&virtio_balloon_pci_info);
  93}
  94
  95type_init(virtio_balloon_pci_register)
  96