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=-0.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, FREEMAIL_REPLYTO_END_DIGIT,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_PASS,URIBL_BLOCKED autolearn=ham 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 6E1B0C43441 for ; Mon, 19 Nov 2018 10:49:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2808A20831 for ; Mon, 19 Nov 2018 10:49:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=protonmail.ch header.i=@protonmail.ch header.b="Zc93aDoI" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2808A20831 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=protonmail.ch Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728048AbeKSVM5 (ORCPT ); Mon, 19 Nov 2018 16:12:57 -0500 Received: from mail-40133.protonmail.ch ([185.70.40.133]:64543 "EHLO mail-40133.protonmail.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727728AbeKSVM5 (ORCPT ); Mon, 19 Nov 2018 16:12:57 -0500 Date: Mon, 19 Nov 2018 10:49:32 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.ch; s=default; t=1542624575; bh=XHB77YYF/OozDjNoEgCgyfUGNJ3ohuq/u8j/uxT2WPs=; h=Date:To:From:Cc:Reply-To:Subject:In-Reply-To:References: Feedback-ID:From; b=Zc93aDoIMcKd1Sg4xYeKebwG/nQPEBv33UEdZtXFyKiChRBJ+YSVW80aWxt28NPdT 6ISjG3EcmJtseo5MbUhEt+bLwEPyPBWpnCPBwdPvltU8dR2nUMJZmUngM2XfRJbj+F YHdoI8v0qRomczGdK1ZvVCz5MkR+wAqGaMqDSVxM= To: Peter Zijlstra From: Jordan Glover Cc: Alexey Budankov , Thomas Gleixner , Kees Cook , Jann Horn , Ingo Molnar , Arnaldo Carvalho de Melo , Andi Kleen , Jonatan Corbet , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Mark Rutland , Tvrtko Ursulin , linux-kernel , "kernel-hardening@lists.openwall.com" , "linux-doc@vger.kernel.org" Reply-To: Jordan Glover Subject: Re: [PATCH v1 2/2]: Documentation/admin-guide: introduce perf-security.rst file Message-ID: In-Reply-To: <20181119104646.GB9761@hirez.programming.kicks-ass.net> References: <0ac97cd0-4773-fff6-7d4e-74c4a1f076c4@linux.intel.com> <20181119104646.GB9761@hirez.programming.kicks-ass.net> Feedback-ID: QEdvdaLhFJaqnofhWA-dldGwsuoeDdDw7vz0UPs8r8sanA3bIt8zJdf4aDqYKSy4gJuZ0WvFYJtvq21y6ge_uQ==:Ext:ProtonMail MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Monday, November 19, 2018 11:46 AM, Peter Zijlstra wrote: > On Mon, Nov 19, 2018 at 10:35:59AM +0000, Jordan Glover wrote: > > > On Monday, November 19, 2018 6:42 AM, Alexey Budankov alexey.budankov@l= inux.intel.com wrote: > > > > > +>=3D3: > > > > > > - Restrict *access* to PCL performance monitoring for unprivi= leged processes. > > > > > > > > > - This is the default on Debian and Android [7]_ , [8]_ . > > > > > > > > > > AFAIK there is no support for '+>=3D3' in mainline kernel[1]. > > Debian and Android use out-of-tree patch for that[2]. > > Maybe someone should upstream it? > > NAK still stands on that. Alternative's have been proposed but so far > nobody that cared seems to care enough to implement those. So, I guess we can't document NAKed patches :) Jordan