lkml.org 
[lkml]   [2018]   [Jan]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: Linux 4.15-rc7
Wasn't/Isn't the 4G/4G  memory layout for 32 bits essentially KPTI?

OG.


On Thu, Jan 11, 2018 at 12:32 AM, Pavel Machek <pavel@ucw.cz> wrote:
> Hi!
>
>> The one thing I want to do now that Meltdown and Spectre are public,
>> is to give a *big* shout-out to the x86 people, and Thomas Gleixner in
>> particular for really being on top of this. It's been one huge
>> annoyance, and honestly, Thomas really went over and beyond in this
>> whole mess. A lot of other people have obviously been involved too,
>
> As I understand it: KPTI prevents Meltdown attack on x86-64, but
> Spectre means even x86-64 is not expected to be safe?
>
> Ok, so Meltdown is public... And I still have some nice 32-bit
> machines I'd like to keep working.
>
> Proof of concept is out, https://github.com/IAIK/meltdown/ .
>
> Is anyone working on KPTI for x86-32? SLES11 should still be
> supported, and that should have x86-32 version; any chance SUSE can
> share some patches?
>
> Thanks,
> Pavel
> --
> (english) http://www.livejournal.com/~pavelmachek
> (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

\
 
 \ /
  Last update: 2018-01-14 23:23    [W:0.109 / U:0.336 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site