[PATCH v4 0/6] virtio core DMA API conversion

Benjamin Herrenschmidt
Tue, 10 Nov 2015 05:26:30 -0000

On Mon, 2015-11-09 at 18:18 -0800, Andy Lutomirski
wrote:
>
> Which leaves the special case of Xen, where even preexisting devices
> don't bypass the IOMMU.? Can we keep this specific to powerpc and
> sparc?? On x86, this problem is basically nonexistent, since the IOMMU
> is properly self-describing.
>
> IOW, I think that on x86 we should assume that all virtio devices
> honor the IOMMU.

You don't like performances ? :-)

Cheers,
Ben.