Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1754235AbeAGRXI (ORCPT <rfc822;ralf@linux-mips.org> + 1 other);
        Sun, 7 Jan 2018 12:23:08 -0500
Received: from lang.hm ([66.167.227.134]:49097 "EHLO bifrost.lang.hm"
        rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
        id S1754161AbeAGRXH (ORCPT <rfc822;linux-kernel@vger.kernel.org>);
        Sun, 7 Jan 2018 12:23:07 -0500
Date: Sun, 7 Jan 2018 09:21:44 -0800 (PST)
From: David Lang <david@lang.hm>
X-X-Sender: dlang@dlang-laptop
To: Borislav Petkov <bp@alien8.de>
cc: Willy Tarreau <w@1wt.eu>, Dave Hansen <dave.hansen@intel.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Jon Masters <jcm@redhat.com>,
        "Woodhouse, David" <dwmw@amazon.co.uk>,
        Paolo Bonzini <pbonzini@redhat.com>,
        Alan Cox <gnomes@lxorguk.ukuu.org.uk>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Andi Kleen <andi@firstfloor.org>,
        Greg Kroah-Hartman <gregkh@linux-foundation.org>,
        Tim Chen <tim.c.chen@linux.intel.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Jeff Law <law@redhat.com>, Nick Clifton <nickc@redhat.com>
Subject: Re: Avoid speculative indirect calls in kernel
In-Reply-To: <20180107141410.d6xd573s436ma5kz@pd.tnic>
Message-ID: <nycvar.QRO.7.76.6.1801070921030.418@qynat-yncgbc>
References: <e64025e6-9c4f-703d-cb69-29eeb9cc16bd@redhat.com> <20180104015920.1ad7b9d3@alans-desktop> <e3a0fa73-1328-aa42-13ea-c670c8d4ac87@redhat.com> <1515054014.12987.75.camel@amazon.co.uk> <403e65be-cfd1-fd08-0401-2e26470b63d4@redhat.com>
 <4dde456c-fd15-e768-8876-5844c8b7c455@redhat.com> <alpine.DEB.2.20.1801050153290.2127@nanos> <20180105064946.GA4007@1wt.eu> <44f1b753-47d3-82e3-9401-256b4beadd4f@intel.com> <20180105071333.GA4029@1wt.eu> <20180107141410.d6xd573s436ma5kz@pd.tnic>
User-Agent: Alpine 2.21.1 (DEB 209 2017-03-23)
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII; format=flowed
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org
Return-Path: <linux-kernel-owner@vger.kernel.org>

The point is that in many cases, if someone explits the "trusted" process, they 
already have everything that the machine is able to do anyway.