On Thu, 2 Aug 2007, Ralf Baechle wrote: > It's the physical not virtual address and as you say yourself it's a cookie > so could potencially be some opaque value that isn't a physical address > at all. And I wouldn't quite call it crippling that's certainly way > exagerated. Well, once you start hashing your physical addresses into smaller cookies you ask for complexity and likely trouble. But it should be doable -- you cannot map more of the physical space at a time than you can address virtually. Maciej