virtqueue_disable_cb sets avail ring flag is only suitable on master side, used ring flag shoud be write on remote side.
also, when judging vq_ring_must_notify_host in virtqueue_kick, used ring flag is checked on either master/remote side. used ring flag check is only suitable for master side checking notification need or not, avail ring flag should be checked instead when trying kick on remote side.
virtqueue_disable_cbsets avail ring flag is only suitable on master side, used ring flag shoud be write on remote side.also, when judging
vq_ring_must_notify_hostinvirtqueue_kick, used ring flag is checked on either master/remote side. used ring flag check is only suitable for master side checking notification need or not, avail ring flag should be checked instead when trying kick on remote side.