From: Ingo Molnar <mingo@elte.hu>
Date: Sat, 3 May 2008 12:10:16 +0200

quoted text
> The bus-to-phys complication which is an identity on x86. Etc. etc.

And you guys have IOMMUs now, aren't you glad all of this
nice DMA API infrastructure exists already and has been tested
for years? :-))))
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