On 15/09/2016 11:25, Paolo Bonzini wrote: > So in this case the image is actually overlay.qcow2, and it is created > with img-direct as the backing file? Since you have to create > overlay.qcow2 outside QEMU anyway, overlay.qcow2 might as well be the > "image". That is, you could choose between: > > -drive driver=blkreplay,if=none,image=overlay.qcow2,id=img-blkreplay \ > -rr snapshot=replay_init,... > > -drive driver=blkreplay,if=none,image=img-direct,id=img-blkreplay > > The temporary snapshot would be created if there's no "-rr snapshot" option > on the command line.
Sorry, that would be "-icount rrsnapshot=" of course. Paolo
