On Tue, Oct 16, 2018 at 08:48:16AM +0200, Gerd Hoffmann wrote: > Hi, > > > I don't know. The `disable-modern` option already exists but I > > don't know who would want to use it. > > Compat property for old (2.6 & older) machine types. > > > > Right - maybe a flag to disable modern interface is enough. > > > We thus get two types: > > > - transitional (legacy) > > > - non-transitional (modern) > > > which matches spec nicely. > > > > I would agree with the removal of virtio-*-0.9 only if we decide > > to drop support for disable-modern=true. > > See above. We can't drop disable-modern.
Good point. But this doesn't require it to be a supported device option for users/management. Maybe we should rename it to "x-disable-modern" (but that's a separate discussion). > > > If we still want to provide a legacy-only virtio device, it should be > > a separate device type. > > I can't see a reason why we should provide legacy-only virtio devices. If the only reason for disable-modern to exist is for internal usage by machine-type code, I agree we don't need the -0.9 device types. -- Eduardo
