LXR qemu/hw/s390x/virtio-ccw-balloon.c

   1/*
   2 * virtio ccw balloon implementation
   3 *
   4 * Copyright 2012, 2015 IBM Corp.
   5 * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
   6 *
   7 * This work is licensed under the terms of the GNU GPL, version 2 or (at
   8 * your option) any later version. See the COPYING file in the top-level
   9 * directory.
  10 */
  11
  12#include "qemu/osdep.h"
  13#include "hw/virtio/virtio.h"
  14#include "qapi/error.h"
  15#include "qemu/module.h"
  16#include "virtio-ccw.h"
  17
  18static void virtio_ccw_balloon_realize(VirtioCcwDevice *ccw_dev, Error **errp)
  19{
  20    VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(ccw_dev);
  21    DeviceState *vdev = DEVICE(&dev->vdev);
  22
  23    qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
  24    object_property_set_bool(OBJECT(vdev), true, "realized", errp);
  25}
  26
  27static void virtio_ccw_balloon_instance_init(Object *obj)
  28{
  29    VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(obj);
  30
  31    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  32                                TYPE_VIRTIO_BALLOON);
  33    object_property_add_alias(obj, "guest-stats", OBJECT(&dev->vdev),
  34                              "guest-stats", &error_abort);
  35    object_property_add_alias(obj, "guest-stats-polling-interval",
  36                              OBJECT(&dev->vdev),
  37                              "guest-stats-polling-interval", &error_abort);
  38}
  39
  40static Property virtio_ccw_balloon_properties[] = {
  41    DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
  42                    VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
  43    DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
  44                       VIRTIO_CCW_MAX_REV),
  45    DEFINE_PROP_END_OF_LIST(),
  46};
  47
  48static void virtio_ccw_balloon_class_init(ObjectClass *klass, void *data)
  49{
  50    DeviceClass *dc = DEVICE_CLASS(klass);
  51    VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
  52
  53    k->realize = virtio_ccw_balloon_realize;
  54    dc->props = virtio_ccw_balloon_properties;
  55    set_bit(DEVICE_CATEGORY_MISC, dc->categories);
  56}
  57
  58static const TypeInfo virtio_ccw_balloon = {
  59    .name          = TYPE_VIRTIO_BALLOON_CCW,
  60    .parent        = TYPE_VIRTIO_CCW_DEVICE,
  61    .instance_size = sizeof(VirtIOBalloonCcw),
  62    .instance_init = virtio_ccw_balloon_instance_init,
  63    .class_init    = virtio_ccw_balloon_class_init,
  64};
  65
  66static void virtio_ccw_balloon_register(void)
  67{
  68    type_register_static(&virtio_ccw_balloon);
  69}
  70
  71type_init(virtio_ccw_balloon_register)
  72