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
  19 static 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_realize(vdev, BUS(&ccw_dev->bus), errp);
  25 }
  26
  27 static 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");
  35     object_property_add_alias(obj, "guest-stats-polling-interval",
  36                               OBJECT(&dev->vdev),
  37                               "guest-stats-polling-interval");
  38 }
  39
  40 static 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
  48 static 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     device_class_set_props(dc, virtio_ccw_balloon_properties);
  55     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
  56 }
  57
  58 static 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
  66 static void virtio_ccw_balloon_register(void)
  67 {
  68     type_register_static(&virtio_ccw_balloon);
  69 }
  70
  71 type_init(virtio_ccw_balloon_register)