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 18 static 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 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", &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 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 dc->props = 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) 72