mirror of
https://github.com/qemu/qemu.git
synced 2024-12-13 14:33:31 +08:00
a6704a34cf
virtio-vsock was introduced after the release of VIRTIO 1.0 specifications, so it should be 'modern-only'. This patch forces virtio version 1 as done for vhost-vsock-pci. To avoid migration issues, we force virtio version 1 only when legacy check is enabled in the new machine types (>= 5.1). Cc: qemu-stable@nongnu.org Suggested-by: Cornelia Huck <cohuck@redhat.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Message-Id: <20200921122506.82515-5-sgarzare@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
74 lines
2.1 KiB
C
74 lines
2.1 KiB
C
/*
|
|
* vhost vsock ccw implementation
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2 or (at
|
|
* your option) any later version. See the COPYING file in the top-level
|
|
* directory.
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "hw/qdev-properties.h"
|
|
#include "hw/virtio/virtio.h"
|
|
#include "qapi/error.h"
|
|
#include "qemu/module.h"
|
|
#include "virtio-ccw.h"
|
|
|
|
static Property vhost_vsock_ccw_properties[] = {
|
|
DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
|
|
VIRTIO_CCW_MAX_REV),
|
|
DEFINE_PROP_END_OF_LIST(),
|
|
};
|
|
|
|
static void vhost_vsock_ccw_realize(VirtioCcwDevice *ccw_dev, Error **errp)
|
|
{
|
|
VHostVSockCCWState *dev = VHOST_VSOCK_CCW(ccw_dev);
|
|
DeviceState *vdev = DEVICE(&dev->vdev);
|
|
|
|
qdev_realize(vdev, BUS(&ccw_dev->bus), errp);
|
|
}
|
|
|
|
static void vhost_vsock_ccw_class_init(ObjectClass *klass, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
|
VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
|
|
|
|
k->realize = vhost_vsock_ccw_realize;
|
|
set_bit(DEVICE_CATEGORY_MISC, dc->categories);
|
|
device_class_set_props(dc, vhost_vsock_ccw_properties);
|
|
}
|
|
|
|
static void vhost_vsock_ccw_instance_init(Object *obj)
|
|
{
|
|
VHostVSockCCWState *dev = VHOST_VSOCK_CCW(obj);
|
|
VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj);
|
|
VirtIODevice *virtio_dev;
|
|
|
|
virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
|
|
TYPE_VHOST_VSOCK);
|
|
|
|
virtio_dev = VIRTIO_DEVICE(&dev->vdev);
|
|
|
|
/*
|
|
* To avoid migration issues, we force virtio version 1 only when
|
|
* legacy check is enabled in the new machine types (>= 5.1).
|
|
*/
|
|
if (!virtio_legacy_check_disabled(virtio_dev)) {
|
|
ccw_dev->force_revision_1 = true;
|
|
}
|
|
}
|
|
|
|
static const TypeInfo vhost_vsock_ccw_info = {
|
|
.name = TYPE_VHOST_VSOCK_CCW,
|
|
.parent = TYPE_VIRTIO_CCW_DEVICE,
|
|
.instance_size = sizeof(VHostVSockCCWState),
|
|
.instance_init = vhost_vsock_ccw_instance_init,
|
|
.class_init = vhost_vsock_ccw_class_init,
|
|
};
|
|
|
|
static void vhost_vsock_ccw_register(void)
|
|
{
|
|
type_register_static(&vhost_vsock_ccw_info);
|
|
}
|
|
|
|
type_init(vhost_vsock_ccw_register)
|