Received: by 2002:ac0:bc90:0:0:0:0:0 with SMTP id a16csp844686img; Fri, 22 Mar 2019 09:44:27 -0700 (PDT) X-Google-Smtp-Source: APXvYqwnXVdf1aHkebACShAgbxUekuektcAeLzjoKziHkdynK4GDo/dM2X94N4uattJxeA+dFD4R X-Received: by 2002:a65:60ca:: with SMTP id r10mr9379288pgv.429.1553273067207; Fri, 22 Mar 2019 09:44:27 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1553273067; cv=none; d=google.com; s=arc-20160816; b=zb6Igh6HxkmOoocI/pJDnvYqW2Ygovn0Y0YkZUPBFke7nvRIDODOaFApNMT752VXd5 48xGq3R7z7wCcu7RSoAxfDhFwkpzh/eg5YMNfwQXWpl+5HKVEB69ozbo/M5dKVDCmp2j 1M0odgWvVgUozNaH/55bGhToQUVxwXFZS+ZccLqgDB0IVEtTxT086f+C4ab4yg1jK8+F m5IXFE4HSrPzMzhsgo9V+RYGBvgUeTFEv1izngCfzIdpPFAtqBmsxUFL1U2RjbbAENem Zpu0RxYt6nFMaIW3dNOYxQb9PFkyEtvRdwU8EwTl1GXj4Rpn/CSqgqNCcaNyzYr7F46y k9XA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature; bh=T3Uzp6YrKkjvY8xI/Y90lTGfnCuI7MJNbKhaktKC8Zo=; b=vS/A3gEcEamEz1d5rPJGHAxKHx+81uhhzi4Xf+JkBStkn3D8QWTwVyUr8aO46oUXOe ZQVXcFA35P/sezqs4nVcKCq/sZNcnvclTcywl2fhveWnkpXttx3yauIObCFwNSgQNSuN qP+HyOjpI7LGvwvWezEtoI0hOgt5uPHoqpeI2hzC5XZDkSU2awFpry/xrLpSG22mKydQ BAU60YU5pKXubiE1BCHjTERC1MYZJFQRmbolX5QxhXtFjLr+KbAuA6nN9ZbNbCgG+xfY BOWnLE+a26UyyTGTvps3OKdoS8rfAeEk9QTIZyfZazoAPjNlqjE9aIJbNBdCLeq8K/le tjLQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@alien8.de header.s=dkim header.b=mptJgUEo; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id q20si7117752pgi.499.2019.03.22.09.44.12; Fri, 22 Mar 2019 09:44:27 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@alien8.de header.s=dkim header.b=mptJgUEo; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727848AbfCVQnh (ORCPT + 99 others); Fri, 22 Mar 2019 12:43:37 -0400 Received: from mail.skyhub.de ([5.9.137.197]:59136 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727526AbfCVQnh (ORCPT ); Fri, 22 Mar 2019 12:43:37 -0400 Received: from zn.tnic (p200300EC2F098000329C23FFFEA6A903.dip0.t-ipconnect.de [IPv6:2003:ec:2f09:8000:329c:23ff:fea6:a903]) (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 CF8D41EC09F1; Fri, 22 Mar 2019 17:43:35 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1553273015; 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=T3Uzp6YrKkjvY8xI/Y90lTGfnCuI7MJNbKhaktKC8Zo=; b=mptJgUEoxaJ+PLNQb7lzmL5mdo1UZ4582fjk8K0I7HH63jDuEbuOYcc/cvfDLglFDcSVRX IoJzZgKmOUK3cUNHGckHSgVmhmzDwtPIdB92LErcvADlxRVXyZJQxofdEfU4z722N5iccW xC03QSms7YggF8mbjKhww3Ad4lib/zQ= Date: Fri, 22 Mar 2019 17:43:39 +0100 From: Borislav Petkov To: Thomas Renninger Cc: "Rafael J. Wysocki" , x86 , LKML , Len Brown , Linux PM , Srinivas Pandruvada , Laura Abbott , Thomas Gleixner , Peter Zijlstra , Ingo Molnar , Simon Schricker , Hannes Reinecke Subject: Re: [PATCH 1/2] PM / arch: x86: Rework the MSR_IA32_ENERGY_PERF_BIAS handling Message-ID: <20190322164339.GF12472@zn.tnic> References: <1637073.gl2OfxWTjI@aspire.rjw.lan> <1605148.8jT99SsvVP@aspire.rjw.lan> <2431307.7efAn4P022@house> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <2431307.7efAn4P022@house> 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 Fri, Mar 22, 2019 at 05:27:43PM +0100, Thomas Renninger wrote: > Thanks Rafael for your quick look at and all the time you spend for this! > > A /sys userspace knob will certainly not be enough for us. > You'll need a tool installed fixing this. We won't pick up the second patch converting to the sysfs interface of course - only the first one. The second patch is beginning the slow phasing out of the direct /dev/msr access. -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.