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Date:   Mon, 14 Jan 2019 14:01:54 +0100
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
Message-ID: <20190114130153.GC21544@amd>
References: <64efec3fda40c0758601bf9b1480a35d76d3c487.1545413988.git.tim.c.chen@linux.intel.com>
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On Mon 2019-01-14 13:06:24, Jiri Kosina wrote:
> On Mon, 14 Jan 2019, Pavel Machek wrote:
>=20
> > > > That one really is Intel-specific (not even all x86s are affectd). =
Same=20
> > > > for Meltdown.
> > >=20
> > > At least for Meltdown, your claim is simply not correct.
> >=20
> > You are right, there may be few ARM chips affected by meltdown.
>=20
> 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

--=20
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo=
g.html

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