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