On Wed, Jun 19, 2013 at 11:42:06AM +0100, Alex Bligh wrote: > > --On 19 June 2013 10:13:17 +0000 Paul Durrant > <paul.durr...@citrix.com> wrote: > > >>We obviously can't say to users "Are you running Windows and are you > >>running PV drivers >= X.Y, if so set lever A to position B, otherwise if > >>you are running some other OS or an earlier version of the Windows PV > >>driver set it to position A". > > > >Why not? The device can be chosen on a per-VM basis. > > Not everyone knows what guest some random user will be running > (consider cloud platforms).
I agree. If this is really the only solution, we would need to have both versions presented to the guest so that old drivers continue to work without any intervention. Matt > Expecting an admin to introspect the guest is not a good plan. > Having the same set of levers that work at least reasonably with > everything is the way to go. >
