Re: [PATCH/RFC] Shared page tables

Ray Bryant
2006-01-24T00:16:38Z

On Monday 23 January 2006 17:58, Ray Bryant wrote:
<snip>

> ... And what kind of alignment constraints do we end up
> under in order to make the sharing happen? (My guess would be that there
> aren't any such constraints (well, page alignment.. :-) if we are just
> sharing pte's.)
>

Oh, obviously that is not right as you have to share full pte pages. So on
x86_64 I'm guessing one needs 2MB alignment in order to get the sharing to
kick in, since a pte page maps 512 pages of 4 KB each.

Best Regards,
--
Ray Bryant
AMD Performance Labs Austin, Tx
512-602-0038 (o) 512-507-7807 (c)