[lkml]   [2018]   [Jan]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [RFC PATCH] asm/generic: introduce if_nospec and nospec_barrier
On Thu, 4 Jan 2018, Alan Cox wrote:

> There are people trying to tune coverity and other tool rules to identify
> cases,

Yeah, but that (and *especially* Coverity) is so inconvenient to be
applied to each and every patch ... that this is not the way to go.

If the CPU speculation can cause these kinds of side-effects, it just must
not happen, full stop. OS trying to work it around is just a whack-a-mole
(which we can apply for old silicon, sure ... but not something that
becomes a new standard) that's never going to lead to any ultimate

Jiri Kosina

 \ /
  Last update: 2018-01-04 02:30    [W:0.070 / U:5.444 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site