Re: [PATCH 9/9] x86: Detect whether we should use Xen SWIOTLB.

From: H. Peter Anvin
Date: Mon Aug 02 2010 - 11:48:44 EST


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.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/