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    SubjectRe: [Part1 PATCH v4 11/17] x86/mm: DMA support for SEV memory encryption
    On Sat, Sep 16, 2017 at 07:34:12AM -0500, Brijesh Singh wrote:

    Add a verb to patch subject:

    Subject: x86/mm: Add DMA support for ...

    > From: Tom Lendacky <thomas.lendacky@amd.com>
    >
    > DMA access to encrypted memory cannot be performed when SEV is active.
    > In order for DMA to properly work when SEV is active, the SWIOTLB bounce
    > buffers must be used.
    >
    > Cc: Thomas Gleixner <tglx@linutronix.de>
    > Cc: Ingo Molnar <mingo@redhat.com>
    > Cc: "H. Peter Anvin" <hpa@zytor.com>
    > Cc: Borislav Petkov <bp@suse.de>
    > Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
    > Cc: x86@kernel.org
    > Cc: linux-kernel@vger.kernel.org
    > Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
    > Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
    > ---
    > arch/x86/mm/mem_encrypt.c | 86 +++++++++++++++++++++++++++++++++++++++++++++++
    > lib/swiotlb.c | 5 +--
    > 2 files changed, 89 insertions(+), 2 deletions(-)

    With that:

    Reviewed-by: Borislav Petkov <bp@suse.de>

    --
    Regards/Gruss,
    Boris.

    SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
    --

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