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=-2.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, USER_AGENT_MUTT 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 EBE9EC43381 for ; Fri, 22 Mar 2019 16:43:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B71FA21902 for ; Fri, 22 Mar 2019 16:43:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alien8.de header.i=@alien8.de header.b="mptJgUEo" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727927AbfCVQnh (ORCPT ); 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.