Hi, > > 2. Select FADT version with an option. This one is definitely safe, > > but adds yet another option. > > the 3rd simpler option is: > force rev1 on old machine types (2.9 and older), > using machine compat machinery and use rev3 on newer machines
How about keeping rev1 for pc machine type and use rev3 on q35 only? Old guests which might fall over new acpi stuff usually work better with "pc" anyway ... cheers, Gerd
