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_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 25 object_property_set_bool(OBJECT(vdev), true, "realized", errp); 26 } 27 28 static 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"); 36 object_property_add_alias(obj, "guest-stats-polling-interval", 37 OBJECT(&dev->vdev), 38 "guest-stats-polling-interval"); 39 } 40 41 static 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 49 static 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 device_class_set_props(dc, virtio_ccw_balloon_properties); 56 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 57 } 58 59 static 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 67 static void virtio_ccw_balloon_register(void) 68 { 69 type_register_static(&virtio_ccw_balloon); 70 } 71 72 type_init(virtio_ccw_balloon_register) 73