On Sun, Nov 08, 2015 at 12:37:47PM +0200, Michael S. Tsirkin wrote: > I have no problem with that. For example, can we teach > the DMA API on intel x86 to use PT for virtio by default? > That would allow merging Andy's patches with > full compatibility with old guests and hosts.
Well, the only incompatibility comes from an experimental qemu feature, more explicitly from a bug in that features implementation. So why should we work around that in the kernel? I think it is not too hard to fix qemu to generate a correct DMAR table which excludes the virtio devices from iommu translation. Joerg -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html