[lkml]   [2018]   [Feb]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 4.9 43/92] x86/pti: Do not enable PTI on CPUs which are not vulnerable to Meltdown
On Tue, 13 Feb 2018, Andi Kleen wrote:
> On Tue, Feb 13, 2018 at 07:09:44AM -0800, Arjan van de Ven wrote:
> > >
> > > So, any hints on what you think should be the correct fix here?
> >
> > the patch sure looks correct to me, it now has a nice table for CPU IDs
> > including all of AMD (and soon hopefully the existing Intel ones that are not exposed to meltdown)
> I don't think the table is nice, it's a white list that would need
> to be maintained forever.

No. The table is basically excluding families <=5 and a few individual
ones. Anything newer than that should tell via ARCH_CAP_RDCL_NO and not
need any entry.



 \ /
  Last update: 2018-02-13 17:04    [W:0.129 / U:1.328 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site