If QEMU provides the VIRTIO_NET_F_STANDBY feature but the guest doesn't
the primary device must be kept hidden
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Message-Id: <20220203141537.972317-5-lvivier@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>