On Tue, Apr 18, 2017 at 04:20:10PM -0500, Tom Lendacky wrote: > Since DMA addresses will effectively look like 48-bit addresses when the > memory encryption mask is set, SWIOTLB is needed if the DMA mask of the > device performing the DMA does not support 48-bits. SWIOTLB will be > initialized to create decrypted bounce buffers for use by these devices. Use a verb in the subject: Subject: x86, swiotlb: Add memory encryption support or similar. -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.