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    SubjectRe: [PATCH v5 22/32] x86, swiotlb: DMA support for memory encryption
    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.

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