On Wed, 2014-08-27 at 13:52 +0200, Michael S. Tsirkin wrote: > For x86 as of QEMU 2.0 there's no iommu. > So a reasonable thing to do for that platform > might be to always use iommu *if it's there*. > My understanding is this isn't the case for powerpc? All 64-bit powerpc have an iommu but not all 32-bit ones. Also using/emulating one has a cost. Whatever we do shouldn't impair the fast path of virtio-on-kvm doing direct physical access. Cheers, Ben. _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
