virtio: disable virtqueue notifications during polling
This is a performance optimization to eliminate vmexits during polling. It also avoids spurious ioeventfd processing after polling ends. Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Message-id: 20161201192652.9509-12-stefanha@redhat.com Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
Showing
想要评论请 注册 或 登录