[RFC PATCH 06/11] powerpc/svm: Use SWIOTLB DMA API for all virtio devices

From: Anshuman Khandual Secure guest memory (GPA range) is isolated and inaccessible from the host. But virtio ring transactions require the back end drivers to process incoming scatter gather buffers which require their access in host. Hence a portion of guest memory can be converted to shared

[RFC PATCH 06/11] powerpc/svm: Use SWIOTLB DMA API for all virtio devices

From: Anshuman Khandual Secure guest memory (GPA range) is isolated and inaccessible from the host. But virtio ring transactions require the back end drivers to process incoming scatter gather buffers which require their access in host. Hence a portion of guest memory can be converted to shared