On Tue, Jul 11, 2017 at 10:13:05AM +0200, Gerd Hoffmann wrote: > Hi, > > > Concerning QEMU, could we maybe simply emit a warning a la > > > > "you did not specify a machine type with the -M option, so you are > > currently running the the 'pc' machine type. Please note that > > future > > versions of QEMU might use the 'q35' machine type instead. If you > > require the 'pc' machine type for your setting, then please specify > > it with the -M option." > > Warnings tend to get ignored until things are actually break, so I > don't think this helps much. I think simply not having a default > machine type (as already suggested elsewhere in this thread) is the > best way to deal with this. That way we don't silently change > behavior. It also is in line with what we have on arm where we already > require the user to explicitly pick a machine type. If we do that, we probably should wait for libvirt to adapt and choose its own default. Current libvirt would pick an arbitrary machine-type (the first one in the query-machines list) as the default. -- Eduardo -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list