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Re: [Xen-devel] x86 swiotlb questions

>Here's a thought: if the highmem DMA requests come from *only* the blkdev
>subsystem, then perhaps we could use its highmem bounce buffer (I think that
>still exists?).

Another, only partially related thought: The addition of KM_SWIOTLB is the only
difference to native kmap_types.h. It would seem to me that, at the price of
disabling interrupts around the use, it should be possible to replace that with
KM_BOUNCE_READ and let go of the Xen specific header...


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