On Fri, Jun 15, 2018 at 12:43:09PM +0800, Wei Wang wrote: > - remove the cmd id related interface. Now host can just send a free > page hint command to the guest (via the host_cmd config register) > to start the reporting. Here we go again. And what if reporting was already started previously? I don't think it's a good idea to tweak the host/guest interface yet again. -- MST