linux-kernel - Re: Linux 4.15-rc7

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Message-ID: <20180110233252.GA14739@amd>
Date:   Thu, 11 Jan 2018 00:32:52 +0100
From:   Pavel Machek <pavel@....cz>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        jikos@...e.cz
Subject: Re: Linux 4.15-rc7

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

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