Messages in this thread | | | Subject | Re: [PATCH 01/34] AMD IOMMU: add Kconfig entry | From | Andi Kleen <> | Date | Fri, 27 Jun 2008 20:54:59 +0200 |
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Joerg Roedel <joro@8bytes.org> writes:
> On Fri, Jun 27, 2008 at 12:39:45PM -0400, Muli Ben-Yehuda wrote: >> On Fri, Jun 27, 2008 at 04:47:29PM +0200, Andi Kleen wrote: >> >> > Also it should ideally describe that there is a trade off between >> > reliability and performance with IOMMU enabled. >> >> I agree that there's a performance tradeoff with current generation >> hardware and ingerfaces, but it wouldn't be fair to single out a >> single IOMMU implementation ;=) > > True. At least for the case without device isolation I have some > optimizations in mind which will minimize the performance tradeoff. I > hope to have them ready for 2.6.28 :)
Not sure that would be very useful. Outside of virtualization device isolation is the main feature of an IOMMU on a native kernel.
-Andi
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