On Thu, 2015-11-19 at 23:38 +0000, David Woodhouse wrote: > > I understand that POWER and other platforms don't currently have a > clean way to indicate that certain device don't have translation. And I > understand that we may end up with a *quirk* which ensures that the DMA > API does the right thing (i.e. nothing) in certain cases. > > But we should *NOT* be involving the virtio device drivers in that > quirk, in any way. And putting a feature bit in the virtio device > itself doesn't seem at all sane either. > > Bear in mind that qemu-system-x86_64 currently has the *same* problem > with assigned physical devices. It's claiming they're translated, and > they're not.
It's not that clear but yeah ... as I mentioned, I can't find a way to do that quirk that won't break when we want to actually use the iommu... Ben. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
