qemu

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/*
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 * vhost vsock ccw implementation
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 *
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 * This work is licensed under the terms of the GNU GPL, version 2 or (at
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 * your option) any later version. See the COPYING file in the top-level
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 * directory.
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 */
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#include "qemu/osdep.h"
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#include "hw/qdev-properties.h"
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#include "hw/virtio/virtio.h"
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#include "qapi/error.h"
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#include "qemu/module.h"
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#include "virtio-ccw.h"
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#include "hw/virtio/vhost-vsock.h"
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#define TYPE_VHOST_VSOCK_CCW "vhost-vsock-ccw"
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OBJECT_DECLARE_SIMPLE_TYPE(VHostVSockCCWState, VHOST_VSOCK_CCW)
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struct VHostVSockCCWState {
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    VirtioCcwDevice parent_obj;
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    VHostVSock vdev;
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};
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static Property vhost_vsock_ccw_properties[] = {
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    DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
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                       VIRTIO_CCW_MAX_REV),
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    DEFINE_PROP_END_OF_LIST(),
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};
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static void vhost_vsock_ccw_realize(VirtioCcwDevice *ccw_dev, Error **errp)
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{
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    VHostVSockCCWState *dev = VHOST_VSOCK_CCW(ccw_dev);
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    DeviceState *vdev = DEVICE(&dev->vdev);
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    qdev_realize(vdev, BUS(&ccw_dev->bus), errp);
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}
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static void vhost_vsock_ccw_class_init(ObjectClass *klass, void *data)
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{
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    DeviceClass *dc = DEVICE_CLASS(klass);
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    VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
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    k->realize = vhost_vsock_ccw_realize;
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    set_bit(DEVICE_CATEGORY_MISC, dc->categories);
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    device_class_set_props(dc, vhost_vsock_ccw_properties);
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}
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static void vhost_vsock_ccw_instance_init(Object *obj)
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{
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    VHostVSockCCWState *dev = VHOST_VSOCK_CCW(obj);
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    VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj);
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    VirtIODevice *virtio_dev;
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    virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
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                                TYPE_VHOST_VSOCK);
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    virtio_dev = VIRTIO_DEVICE(&dev->vdev);
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    /*
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     * To avoid migration issues, we force virtio version 1 only when
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     * legacy check is enabled in the new machine types (>= 5.1).
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     */
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    if (!virtio_legacy_check_disabled(virtio_dev)) {
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        ccw_dev->force_revision_1 = true;
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    }
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}
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static const TypeInfo vhost_vsock_ccw_info = {
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    .name          = TYPE_VHOST_VSOCK_CCW,
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    .parent        = TYPE_VIRTIO_CCW_DEVICE,
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    .instance_size = sizeof(VHostVSockCCWState),
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    .instance_init = vhost_vsock_ccw_instance_init,
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    .class_init    = vhost_vsock_ccw_class_init,
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};
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static void vhost_vsock_ccw_register(void)
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{
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    type_register_static(&vhost_vsock_ccw_info);
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}
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type_init(vhost_vsock_ccw_register)
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