From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C1568C43331 for ; Fri, 3 Apr 2020 21:50:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 701222078C for ; Fri, 3 Apr 2020 21:50:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728371AbgDCVuA convert rfc822-to-8bit (ORCPT ); Fri, 3 Apr 2020 17:50:00 -0400 Received: from Galois.linutronix.de ([193.142.43.55]:41071 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726460AbgDCVuA (ORCPT ); Fri, 3 Apr 2020 17:50:00 -0400 Received: from p5de0bf0b.dip0.t-ipconnect.de ([93.224.191.11] helo=nanos.tec.linutronix.de) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1jKUC0-0004hE-F0; Fri, 03 Apr 2020 23:49:36 +0200 Received: by nanos.tec.linutronix.de (Postfix, from userid 1000) id BEA49103A01; Fri, 3 Apr 2020 23:49:35 +0200 (CEST) From: Thomas Gleixner To: Andy Lutomirski Cc: Peter Zijlstra , Jessica Yu , Rasmus Villemoes , LKML , x86@kernel.org, "Kenneth R. Crudup" , Paolo Bonzini , Fenghua Yu , Xiaoyao Li , Nadav Amit , Thomas Hellstrom , Sean Christopherson , Tony Luck , Steven Rostedt , Greg Kroah-Hartman , jannh@google.com, keescook@chromium.org, vbox-dev@virtualbox.org Subject: Re: [patch 1/2] x86,module: Detect VMX modules and disable Split-Lock-Detect In-Reply-To: <737F6739-9B8B-4C73-91D3-B873D5780F5E@amacapital.net> References: <87o8s8l7t3.fsf@nanos.tec.linutronix.de> <737F6739-9B8B-4C73-91D3-B873D5780F5E@amacapital.net> Date: Fri, 03 Apr 2020 23:49:35 +0200 Message-ID: <87a73skzo0.fsf@nanos.tec.linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Andy Lutomirski writes: >> On Apr 3, 2020, at 11:54 AM, Thomas Gleixner wrote: >> Peter Zijlstra writes: >> Enough vented, but that still does not solve the SLD problem in any >> sensible way. > > Could we unexport set_memory_x perhaps? And maybe try to make > virtualbox break in as many ways as possible? set_memory_x() is not exported anymore, but they found new ways of circumvention. set_memory_x() is only used on really old kernels. Thanks, tglx