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 #include "hw/virtio/virtio-balloon.h" 19 20 #define TYPE_VIRTIO_BALLOON_CCW "virtio-balloon-ccw" 21 OBJECT_DECLARE_SIMPLE_TYPE(VirtIOBalloonCcw, VIRTIO_BALLOON_CCW) 22 23 struct VirtIOBalloonCcw { 24 VirtioCcwDevice parent_obj; 25 VirtIOBalloon vdev; 26 }; 27 28 static void virtio_ccw_balloon_realize(VirtioCcwDevice *ccw_dev, Error **errp) 29 { 30 VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(ccw_dev); 31 DeviceState *vdev = DEVICE(&dev->vdev); 32 33 qdev_realize(vdev, BUS(&ccw_dev->bus), errp); 34 } 35 36 static void virtio_ccw_balloon_instance_init(Object *obj) 37 { 38 VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(obj); 39 40 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 41 TYPE_VIRTIO_BALLOON); 42 object_property_add_alias(obj, "guest-stats", OBJECT(&dev->vdev), 43 "guest-stats"); 44 object_property_add_alias(obj, "guest-stats-polling-interval", 45 OBJECT(&dev->vdev), 46 "guest-stats-polling-interval"); 47 } 48 49 static Property virtio_ccw_balloon_properties[] = { 50 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 51 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 52 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev, 53 VIRTIO_CCW_MAX_REV), 54 DEFINE_PROP_END_OF_LIST(), 55 }; 56 57 static void virtio_ccw_balloon_class_init(ObjectClass *klass, void *data) 58 { 59 DeviceClass *dc = DEVICE_CLASS(klass); 60 VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 61 62 k->realize = virtio_ccw_balloon_realize; 63 device_class_set_props(dc, virtio_ccw_balloon_properties); 64 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 65 } 66 67 static const TypeInfo virtio_ccw_balloon = { 68 .name = TYPE_VIRTIO_BALLOON_CCW, 69 .parent = TYPE_VIRTIO_CCW_DEVICE, 70 .instance_size = sizeof(VirtIOBalloonCcw), 71 .instance_init = virtio_ccw_balloon_instance_init, 72 .class_init = virtio_ccw_balloon_class_init, 73 }; 74 75 static void virtio_ccw_balloon_register(void) 76 { 77 type_register_static(&virtio_ccw_balloon); 78 } 79 80 type_init(virtio_ccw_balloon_register) 81