On Fri, Jun 12, 2015 at 03:20:04PM +0100, Baptiste Reynal wrote: > The ARM SMMU has support for 2-stages address translations, allowing a virtual > address to be translated at two levels: > - Stage 1 translates a virtual address (VA) into an intermediate physical > address (IPA) > - Stage 2 translates an IPA into a physical address (PA) > > Will Deacon introduced a virtual SMMU interface for KVM, which gives a virtual > machine the possibility to use an IOMMU with native drivers. While the VM will > program the first stage of translation (stage 1), the interface will program > the second (stage 2) on the physical SMMU.
Please note that I have no plans to merge the kernel-side of this at the moment. It was merely an exploratory tool to see what a non-PV vSMMU implementation might look like and certainly not intended to be used in anger. Will _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
