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

Borislav Petkov
2017-05-16T14:28:05Z

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.

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