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    SubjectRe: [PATCH 9/9] x86: Detect whether we should use Xen SWIOTLB.
    On 08/02/2010 08:43 AM, FUJITA Tomonori wrote:
    >
    > That's the difficult part because IOMMUs are not
    > interdependent. Hardware IOMMUs are related with swiotlb. GART and
    > AMD-IOMMU are too.
    >
    > We could invent sorta IOMMU register interface and driver-ize IOMMUs
    > but they can't be interdependent completely.

    Of course. However, we need there to be as much structure to it as
    there can be.

    -hpa

    --
    H. Peter Anvin, Intel Open Source Technology Center
    I work for Intel. I don't speak on their behalf.



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