From owner-freebsd-security@freebsd.org  Tue Jan 16 09:57:40 2018
Return-Path: <owner-freebsd-security@freebsd.org>
Delivered-To: freebsd-security@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id A5AEBEB8D6E
 for <freebsd-security@mailman.ysv.freebsd.org>;
 Tue, 16 Jan 2018 09:57:40 +0000 (UTC)
 (envelope-from kostikbel@gmail.com)
Received: from kib.kiev.ua (kib.kiev.ua [IPv6:2001:470:d5e7:1::1])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id 231AB710EA
 for <freebsd-security@freebsd.org>; Tue, 16 Jan 2018 09:57:39 +0000 (UTC)
 (envelope-from kostikbel@gmail.com)
Received: from tom.home (kib@localhost [127.0.0.1])
 by kib.kiev.ua (8.15.2/8.15.2) with ESMTPS id w0G9vUDQ095248
 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO);
 Tue, 16 Jan 2018 11:57:33 +0200 (EET)
 (envelope-from kostikbel@gmail.com)
DKIM-Filter: OpenDKIM Filter v2.10.3 kib.kiev.ua w0G9vUDQ095248
Received: (from kostik@localhost)
 by tom.home (8.15.2/8.15.2/Submit) id w0G9vUSi095247;
 Tue, 16 Jan 2018 11:57:30 +0200 (EET)
 (envelope-from kostikbel@gmail.com)
X-Authentication-Warning: tom.home: kostik set sender to kostikbel@gmail.com
 using -f
Date: Tue, 16 Jan 2018 11:57:30 +0200
From: Konstantin Belousov <kostikbel@gmail.com>
To: Gordon Tetlow <gordon@tetlows.org>
Cc: freebsd-security <freebsd-security@freebsd.org>
Subject: Re: Response to Meltdown and Spectre
Message-ID: <20180116095730.GP1684@kib.kiev.ua>
References: <20180108175751.GH9701@gmail.com>
 <20180113161026.GR1684@kib.kiev.ua>
 <CAKghNw0Bnqmb7U8f_94-tLVcvqL26EuUZMtj393uo9eudwgbNQ@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <CAKghNw0Bnqmb7U8f_94-tLVcvqL26EuUZMtj393uo9eudwgbNQ@mail.gmail.com>
User-Agent: Mutt/1.9.2 (2017-12-15)
X-Spam-Status: No, score=-2.0 required=5.0 tests=ALL_TRUSTED,BAYES_00,
 DKIM_ADSP_CUSTOM_MED,FREEMAIL_FROM,NML_ADSP_CUSTOM_MED autolearn=no
 autolearn_force=no version=3.4.1
X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on tom.home
X-BeenThere: freebsd-security@freebsd.org
X-Mailman-Version: 2.1.25
Precedence: list
List-Id: "Security issues \[members-only posting\]"
 <freebsd-security.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-security>, 
 <mailto:freebsd-security-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-security/>
List-Post: <mailto:freebsd-security@freebsd.org>
List-Help: <mailto:freebsd-security-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-security>, 
 <mailto:freebsd-security-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 16 Jan 2018 09:57:40 -0000

On Mon, Jan 15, 2018 at 09:20:24PM -0800, Gordon Tetlow wrote:
> On Sat, Jan 13, 2018 at 8:10 AM, Konstantin Belousov
> <kostikbel@gmail.com> wrote:
> > On Mon, Jan 08, 2018 at 09:57:51AM -0800, Gordon Tetlow wrote:
> >> Meltdown (CVE-2017-5754)
> >> ~~~~~~~~~~~~~~~~~~~~~~~~
> >> Initial work can be tracked at https://reviews.freebsd.org/D13797.
> >> Please note this is a work in progress and some stuff is likely to be
> >> broken.
> > I consider this patch as ready for review now.
> 
> Awesome! So, what's next? Do we have some testers we can solicit to
> beat on this? I believe des@ had a test case to try out? Based on
> where we are, what needs to be done to get this into the tree?
> Secondarily, what's needed to get this in shape for 10.3/10.4/11.1?

As expected, nothing happens WRT review.

Peter tested the patch, it seems to be fine. I put shims to allow i386
to compile. My idea is to flip the default to non-PTI and commit the
patch as is today.