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Re: pmap_extract(9) (was Re: xmd(4) (Re: XIP))
> The only right way to retrieve P->V translation is to lookup from
> vm_map (== the fault handler).
What about setting up DMA on machines whose DMA uses physical
addresses? Or does the DMA code get an exception to this rule?
I also suspect debugging may well be a non-ignorable use case, though I
could also be wrong about that.
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