On 28/04/2016 17:37, Michael S. Tsirkin wrote: > > All the internally-emulated devices *can* be either translated or > > untranslated. That's just a matter of software. Surely, you currently > > *can't* have translated assigned devices (until someone implements the > > whole VT-d page table shadowing or whatever), so you'll be barred from > > assigning a device to a slot which *previously* had an untranslated > > device. But so what? Put it in a different slot instead. > > Unfortunately people got used to be able to put any device > in any slot, and built external tools around that ability. > It's rather painful to break this assumption.
Once you move to PCIe, a lot of things become more complicated. This is just one of them; instead of needing half a dozen PCI bridges, you'll need half a dozen plus one. Paolo _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
