On Thursday 29 July 2010 05:35:48 FUJITA Tomonori wrote:
> >
> > From what I have been able to tell, the IOMMU interface was written by
> > AMD/Intel to allow the kvm code to work with a common IOMMU interface. To
>
> Don't confuse the IOMMU interface with the DMA API that Arnd
> mentioned.
>
> They are not related at all.
Exactly, thanks for the clarification. I also didn't realize that there
is now an include/linux/iommu.h file that only describes the PCI SR-IOV
interfaces, unlike the generic IOMMU support that we have in your
include/linux/dma-mapping.h file.
Maybe we should rename linux/iommu.h to something more specific so we
can reduce this confusion in the future.
Arnd
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