[lkml]   [2018]   [Mar]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 00/11] Use global pages with PTI
On Fri, Mar 23, 2018 at 10:44 AM, Dave Hansen
<> wrote:
> This adds one major change from the last version of the patch set
> (present in the last patch). It makes all kernel text global for non-
> PCID systems. This keeps kernel data protected always, but means that
> it will be easier to find kernel gadgets via meltdown on old systems
> without PCIDs. This heuristic is, I think, a reasonable one and it
> keeps us from having to create any new pti=foo options

Sounds sane.

The patches look reasonable, but I hate seeing a patch series like
this where the only ostensible reason is performance, and there are no
performance numbers anywhere..


 \ /
  Last update: 2018-03-23 19:27    [W:0.220 / U:2.884 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site