On Mon, Oct 12, 2015 at 10:03:03PM +0100, Peter Maydell wrote: > On 12 October 2015 at 21:55, Alexander Gordeev <agord...@redhat.com> wrote: > > Currently PCI IO address 0 is not allowed even though > > the IO space starts from 0. As result, PCI IO is not > > possible to use at all. > > I don't see any reason for us not to allow 0 IO addresses, > but I'm not sure how your your conclusion follows. It > should be entirely possible to map PCI IO to some other > address than zero in the IO window, which is what I would > have expected the guest to do.
You are right - my changelog is incorrect. The rest of IO space should be alright. However, as 0 IO address is exposed via "ranges" to the guest, it must be usable - isn't it? So it either should be allowed or the range should be different. Thanks! > thanks > -- PMM -- Regards, Alexander Gordeev agord...@redhat.com
