Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934395AbeAHP4n convert rfc822-to-8bit (ORCPT + 1 other); Mon, 8 Jan 2018 10:56:43 -0500 Received: from smtp-16.smcloud.com ([198.36.167.16]:1774 "HELO smtp-16.smcloud.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S933979AbeAHP4m (ORCPT ); Mon, 8 Jan 2018 10:56:42 -0500 From: "Tim Mouraveiko" Organization: IPCopper, Inc. To: Pavel Machek Date: Mon, 08 Jan 2018 07:58:33 -0800 MIME-Version: 1.0 Subject: Re: Bricked x86 CPU with software? CC: linux-kernel@vger.kernel.org Message-ID: <5A539529.10290.130FABDC@tim.ml.ipcopper.com> In-reply-to: <20180106101918.GA22756@amd> References: <5A4D7986.2138.FDC590CF@tim.ml.ipcopper.com>, <5A50217E.7689.593D738@tim.ml.ipcopper.com>, <20180106101918.GA22756@amd> X-mailer: Pegasus Mail for Windows (4.52) Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Content-description: Mail message body Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Return-Path: > Hi! > > > > Is the sequence available from ring 3, or does it need ring 0? > > > > > > Can we get the code? Extraordinary claims and all that... > > > > > > > I did not test privilege level. Are you suggesting that I put the code out there for everyone to > > see or what? > > Yes, that's what I'm suggesting. > That would be neither prudent nor practical. Perhaps you did not consider the consequences. What if it is compatible with your processor? Would you send me a handwritten thank you card if that processor stops processing? Would you be a happy replacement-sale customer of Intel? I think you did not put much thought into why we are talking about it a year later or at all. Unlike the now-oh-so-scary feature that was in existence for decades, that is only so scary because of a "clever" idea to "cloud" host different customers on bare metal, without any consideration to their security, this could affect real people not just oh-so-clever computer farmers.