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. Cc: qemu-sta...@nongnu.org Suggested-by: Cornelia Huck <coh...@redhat.com> Signed-off-by: Stefano Garzarella <sgarz...@redhat.com> --- hw/s390x/vhost-vsock-ccw.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/hw/s390x/vhost-vsock-ccw.c b/hw/s390x/vhost-vsock-ccw.c index 0822ecca89..0759143efa 100644 --- a/hw/s390x/vhost-vsock-ccw.c +++ b/hw/s390x/vhost-vsock-ccw.c @@ -40,7 +40,9 @@ static void vhost_vsock_ccw_class_init(ObjectClass *klass, void *data) static void vhost_vsock_ccw_instance_init(Object *obj) { VHostVSockCCWState *dev = VHOST_VSOCK_CCW(obj); + VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj); + ccw_dev->force_revision_1 = true; virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), TYPE_VHOST_VSOCK); } -- 2.26.2