On Mon, Jun 08, 2015 at 06:28:23PM +0300, Gal Hammer wrote: > On 08/06/2015 18:22, Michael S. Tsirkin wrote: > >On Mon, Jun 08, 2015 at 05:17:31PM +0200, Paolo Bonzini wrote: > >> > >> > >>On 08/06/2015 17:01, Michael S. Tsirkin wrote: > >>>Are there applications that would actually use this? For microsoft this > >>>seems to be mostly driven by ActiveDirectory needs. > >>>It seems quite possible that applications solve the problem > >>>differently on Linux. > >> > >>I'm not aware of a different solution to the problem on Linux. > >> > >>Paolo > > > >Adding it by default for everyone still seems too aggressive. > >We had a ton of pain with pvpanic exactly because of a > >similar "can't hurt" approach. > > > >I think a better approach would be to merge the code in qemu, > >merge a linux driver. Once that's available, and some apps use it, > >enabling it by default will seem more reasonable. > > > > You should not enable it by default. It should be left for the management > system to decide. QEmu by itself can't follow rules/spec on when to change > the UUID. > > Gal.
I agree. And IMHO at this early stage, neither should libvirt without an explicit request. -- MST