> -----Original Message----- > From: Tim Deegan [mailto:t...@xen.org] > Sent: 20 June 2013 09:56 > To: Paul Durrant > Cc: Matt Wilson; Alex Bligh; xen-de...@lists.xen.org; Ian Campbell; qemu- > de...@nongnu.org > Subject: Re: [Xen-devel] [Qemu-devel] [PATCH] Add Xen platform PCI device > version 2. > > At 07:47 +0000 on 20 Jun (1371714432), Paul Durrant wrote: > > > > 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. > > > > > > I suspect that if we expose both, both sets of drivers try to run the > > > same PV connections, and hilarity ensues. > > > > > > > Actually I think I can make that work, and it is the conclusion I came > > to after Alex's comment. > > Ah, nice! In that case, I'm a lot less worried -- we can just expose > both versions/devices by default and there's no need for a visible > control knob tied to driver version (except maybe for debugging). > > It means an 'unsupported' device appearing on other/older OSes, which is > unfortunate, but ISTR only Windows really complains visibly about that. >
Yes, I think only Windows complains and we should be able to post an article somewhere saying 'don't worry about it' :-) Paul
