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/qdev-properties.h"
  14#include "hw/virtio/virtio.h"
  15#include "qapi/error.h"
  16#include "qemu/module.h"
  17#include "virtio-ccw.h"
  18
  19static void virtio_ccw_balloon_realize(VirtioCcwDevice *ccw_dev, Error **errp)
  20{
  21    VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(ccw_dev);
  22    DeviceState *vdev = DEVICE(&dev->vdev);
  23
  24    qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
  25    object_property_set_bool(OBJECT(vdev), true, "realized", errp);
  26}
  27
  28static void virtio_ccw_balloon_instance_init(Object *obj)
  29{
  30    VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(obj);
  31
  32    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
  33                                TYPE_VIRTIO_BALLOON);
  34    object_property_add_alias(obj, "guest-stats", OBJECT(&dev->vdev),
  35                              "guest-stats", &error_abort);
  36    object_property_add_alias(obj, "guest-stats-polling-interval",
  37                              OBJECT(&dev->vdev),
  38                              "guest-stats-polling-interval", &error_abort);
  39}
  40
  41static Property virtio_ccw_balloon_properties[] = {
  42    DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
  43                    VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
  44    DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
  45                       VIRTIO_CCW_MAX_REV),
  46    DEFINE_PROP_END_OF_LIST(),
  47};
  48
  49static void virtio_ccw_balloon_class_init(ObjectClass *klass, void *data)
  50{
  51    DeviceClass *dc = DEVICE_CLASS(klass);
  52    VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
  53
  54    k->realize = virtio_ccw_balloon_realize;
  55    dc->props = virtio_ccw_balloon_properties;
  56    set_bit(DEVICE_CATEGORY_MISC, dc->categories);
  57}
  58
  59static const TypeInfo virtio_ccw_balloon = {
  60    .name          = TYPE_VIRTIO_BALLOON_CCW,
  61    .parent        = TYPE_VIRTIO_CCW_DEVICE,
  62    .instance_size = sizeof(VirtIOBalloonCcw),
  63    .instance_init = virtio_ccw_balloon_instance_init,
  64    .class_init    = virtio_ccw_balloon_class_init,
  65};
  66
  67static void virtio_ccw_balloon_register(void)
  68{
  69    type_register_static(&virtio_ccw_balloon);
  70}
  71
  72type_init(virtio_ccw_balloon_register)
  73