From: Pavel Machek <pavel@ucw.cz>
To: Jiri Kosina <jikos@kernel.org>
Cc: Tim Chen <tim.c.chen@linux.intel.com>,
Jonathan Corbet <corbet@lwn.net>,
Thomas Gleixner <tglx@linutronix.de>,
Linus Torvalds <torvalds@linux-foundation.org>,
Tom Lendacky <thomas.lendacky@amd.com>,
Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Josh Poimboeuf <jpoimboe@redhat.com>,
Andrea Arcangeli <aarcange@redhat.com>,
David Woodhouse <dwmw@amazon.co.uk>,
Andi Kleen <ak@linux.intel.com>,
Dave Hansen <dave.hansen@intel.com>,
Asit Mallick <asit.k.mallick@intel.com>,
Arjan van de Ven <arjan@linux.intel.com>,
Jon Masters <jcm@redhat.com>, Waiman Long <longman9394@gmail.com>,
Greg KH <gregkh@linuxfoundation.org>,
Borislav Petkov <bp@alien8.de>,
linux-kernel@vger.kernel.org, x86@kernel.org,
stable@vger.kernel.org
Subject: Re: [PATCH] x86/speculation: Add document to describe Spectre and its mitigations
Date: Mon, 14 Jan 2019 14:01:54 +0100 [thread overview]
Message-ID: <20190114130153.GC21544@amd> (raw)
In-Reply-To: <nycvar.YFH.7.76.1901141305220.6626@cbobk.fhfr.pm>
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On Mon 2019-01-14 13:06:24, Jiri Kosina wrote:
> On Mon, 14 Jan 2019, Pavel Machek wrote:
>
> > > > That one really is Intel-specific (not even all x86s are affectd). Same
> > > > for Meltdown.
> > >
> > > At least for Meltdown, your claim is simply not correct.
> >
> > You are right, there may be few ARM chips affected by meltdown.
>
> And some of the powerpc64s as well.
Do you mean this?
https://lkml.org/lkml/2018/1/8/649
Frankly I'd not call it Meltdown, as it works only on data in the
cache, so the defense is completely different. Seems more like a l1tf
:-).
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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next prev parent reply other threads:[~2019-01-14 13:01 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-21 17:44 [PATCH] x86/speculation: Add document to describe Spectre and its mitigations Tim Chen
2018-12-21 21:59 ` Ben Greear
2018-12-22 1:17 ` Tim Chen
2018-12-31 16:22 ` Ben Greear
2018-12-31 17:10 ` Arjan van de Ven
2019-01-07 17:57 ` Tim Chen
2019-01-09 0:58 ` Ben Greear
2019-01-09 1:35 ` Tim Chen
2018-12-23 23:11 ` Alexei Starovoitov
2019-01-08 21:12 ` Tim Chen
2019-01-09 1:11 ` Alexei Starovoitov
2019-01-09 1:41 ` Tim Chen
2019-01-09 2:42 ` Alexei Starovoitov
2018-12-28 17:34 ` Jonathan Corbet
2019-01-08 21:18 ` Tim Chen
2019-01-13 23:10 ` Pavel Machek
2019-01-13 23:12 ` Jiri Kosina
2019-01-14 12:01 ` Pavel Machek
2019-01-14 12:06 ` Jiri Kosina
2019-01-14 13:01 ` Pavel Machek [this message]
2019-01-14 13:06 ` Jiri Kosina
2019-01-14 14:39 ` Arjan van de Ven
2019-01-30 0:12 ` Thomas Gleixner
2019-02-12 12:00 ` Thomas Gleixner
2019-02-12 17:36 ` Tim Chen
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