On Thu, 2014-06-05 at 19:26 +1000, Alexey Kardashevskiy wrote: > > No trees yet. For 64GB window we need (64<<30)/(16<<20)*8 = 32K TCE table. > Do we really need trees? The above is assuming hugetlbfs backed guests. These are the least of my worry indeed. But we need to deal with 4k and 64k guests. Cheers, Ben