On 04/05/2018 04:26 PM, Anshuman Khandual wrote: > There are certian platforms which would like to use SWIOTLB based DMA API > for bouncing purpose without actually requiring an IOMMU back end. But the > virtio core does not allow such mechanism. Right now DMA MAP API is only > selected for devices which have an IOMMU and then the QEMU/host back end > will process all incoming SG buffer addresses as IOVA instead of simple > GPA which is the case for simple bounce buffers after being processed with > SWIOTLB API. To enable this usage, it introduces an architecture specific > function which will just make virtio core front end select DMA operations > structure. > > Signed-off-by: Anshuman Khandual <khandual@xxxxxxxxxxxxxxxxxx> + "Michael S. Tsirkin" <mst@xxxxxxxxxx> _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
