On 08/06/2015 17:41, Michael S. Tsirkin wrote: > > > 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. > > > > The ton of pain was due to enabling it in ACPI unconditionally. We can > > leave it disabled in the UUID is all zeroes, for example. > > Not if libvirt insists on adding a non zero uuid to all VMs > unconditionally. This is what I was arguing against really.
That would be a libvirt bug. The VM UUID in SMBIOS and is different from the vmgenid UUID. Paolo