[lkml]   [2018]   [Jan]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 10/16] x86/mm/pti: Populate valid user pud entries
On Tue, Jan 16, 2018 at 10:06:48AM -0800, Dave Hansen wrote:
> On 01/16/2018 08:36 AM, Joerg Roedel wrote:
> >
> > In PAE page-tables at the top-level most bits we usually set
> > with _KERNPG_TABLE are reserved, resulting in a #GP when
> > they are loaded by the processor.
> Can you save me the trip to the SDM and remind me which bits actually
> cause trouble here?

Everything besides PRESENT, PCD, PWT and the actual physical address, so
RW, and NX for example cause a #GP.


 \ /
  Last update: 2018-01-16 20:41    [W:0.119 / U:0.076 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site