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=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 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 2C758C432C0 for ; Tue, 26 Nov 2019 20:54:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EC9CE206BF for ; Tue, 26 Nov 2019 20:54:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alien8.de header.i=@alien8.de header.b="EGWp+pR4" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726636AbfKZUyB (ORCPT ); Tue, 26 Nov 2019 15:54:01 -0500 Received: from mail.skyhub.de ([5.9.137.197]:45986 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725970AbfKZUyA (ORCPT ); Tue, 26 Nov 2019 15:54:00 -0500 Received: from zn.tnic (p200300EC2F0EC2005CA5EB7C7B4C9F6D.dip0.t-ipconnect.de [IPv6:2003:ec:2f0e:c200:5ca5:eb7c:7b4c:9f6d]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 13DAD1EC095C; Tue, 26 Nov 2019 21:53:59 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1574801639; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=0EAng0JO2Sq8Q9Mo0wZDDoOOvzDnBNYYbAsL5s1cfrE=; b=EGWp+pR4d8k4BSQEnZn0589/xZrZItrMkqNiLXZJY/yyqjhsA1kLaJ7DQiUUagaFNxjNqR DuPu921G5r0lakSMz3yERzrJk6ib4Ld1chyk2LqLhrXC5bgmb3uZE4+r8BeBgZ+SrQNwQc BwSo0Hd29gahT7daLBvDRC35WkK0Dq4= Date: Tue, 26 Nov 2019 21:53:51 +0100 From: Borislav Petkov To: Andi Kleen Cc: x86-ml , lkml Subject: Re: [RFC PATCH] x86: Filter MSR writes from luserspace Message-ID: <20191126205351.GG31379@zn.tnic> References: <20191126112234.GA22393@zn.tnic> <87zhgie6nl.fsf@linux.intel.com> <20191126203336.GF31379@zn.tnic> <20191126205028.GJ84886@tassilo.jf.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20191126205028.GJ84886@tassilo.jf.intel.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Nov 26, 2019 at 12:50:28PM -0800, Andi Kleen wrote: > You'll almost certainly violate Linus' golden rule of application > compatibility and the whole thing will be reverted in the end. We'll see. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette