Date: Mon, 8 Jan 2018 11:01:41 +0100 (CET)
From: Thomas Gleixner <tglx@linutronix.de>
To: Linus Torvalds <torvalds@linux-foundation.org>
cc: David Woodhouse <dwmw@amazon.co.uk>,
        Andi Kleen <ak@linux.intel.com>, Paul Turner <pjt@google.com>,
        LKML <linux-kernel@vger.kernel.org>,
        Greg Kroah-Hartman <gregkh@linux-foundation.org>,
        Tim Chen <tim.c.chen@linux.intel.com>,
        Dave Hansen <dave.hansen@intel.com>,
        Kees Cook <keescook@google.com>,
        Rik van Riel <riel@redhat.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Andy Lutomirski <luto@amacapital.net>,
        Jiri Kosina <jikos@kernel.org>,
        One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>
Subject: Re: [PATCH v6 00/10] Retpoline: Avoid speculative indirect calls in
 kernel
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On Sun, 7 Jan 2018, Linus Torvalds wrote:

> On Sun, Jan 7, 2018 at 2:11 PM, David Woodhouse <dwmw@amazon.co.uk> wrote:
> > This is a mitigation for the 'variant 2' attack described in
> > https://googleprojectzero.blogspot.com/2018/01/reading-privileged-memory-with-side.html
> 
> Ok, I don't love the patches, but I see nothing horribly wrong here
> either, and I assume the performance impact of this is pretty minimal.
> 
> Thomas? I'm obviously doing rc7 today without these, but I assume the
> x86 maintainers are resigned to this all.

That seems to be the general mental state for lots of involved people.

Thanks,

	tglx