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=-8.5 required=3.0 tests=BAYES_00,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 0D38CC2D0A3 for ; Thu, 12 Nov 2020 11:24:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ADD7F221FE for ; Thu, 12 Nov 2020 11:24:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727790AbgKLLYo (ORCPT ); Thu, 12 Nov 2020 06:24:44 -0500 Received: from mail-wm1-f68.google.com ([209.85.128.68]:33631 "EHLO mail-wm1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727646AbgKLLYm (ORCPT ); Thu, 12 Nov 2020 06:24:42 -0500 Received: by mail-wm1-f68.google.com with SMTP id p19so5962582wmg.0; Thu, 12 Nov 2020 03:24:39 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=jZ5qGZHSgIjwkaDJ8p8YP7dQhAIcyyCjHjwZ8A7ti1g=; b=VOpVAe4g470PXJq6G4AlUwyk9aBrncBf2KtHo8dn0YpiXotGLpyF0gcU+j+HP9ayJD 0DViuqESedB5Xv2xFJYFDi8ocgPPLFWM3zgsvAsQDxjHpOT3yh+MuX65M2e4JgjRgvib QHkJnbidU+2euWy/vtGRUL91beUOFLlpKYvMk98TULSdSJuXVvnsOxAhJ7VQ9hS6e1G3 DUP44bbJBvsfNCrNd5XiR8Psmcy+0N5t+w33JGsmACZz25PzAW9njXb0VCGVw7RovgLH yX7BlJezYfFvMP/ARi2L4uhv0DkKOkoaVLXf17pENHwld9+ihhyasGXA2sxEFVm6tBxZ mKtQ== X-Gm-Message-State: AOAM532PKF0agpIMV/l0ASJvOYBDQwo2lp+nfiRu7GdPL7Wgn01pLufL E7TiM3T/yOcB11QcAlBM7N0= X-Google-Smtp-Source: ABdhPJzznTh5VjKbLDAHt3xTgAw03O5uYFfXGg/Igyib5PwA378/95uYyIA+Xgq0NiqWbzJ37R+rOw== X-Received: by 2002:a7b:c841:: with SMTP id c1mr9017268wml.31.1605180279306; Thu, 12 Nov 2020 03:24:39 -0800 (PST) Received: from liuwe-devbox-debian-v2 ([51.145.34.42]) by smtp.gmail.com with ESMTPSA id d3sm6455313wre.91.2020.11.12.03.24.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 12 Nov 2020 03:24:38 -0800 (PST) Date: Thu, 12 Nov 2020 11:24:37 +0000 From: Wei Liu To: Daniel Lezcano Cc: Wei Liu , Linux on Hyper-V List , virtualization@lists.linux-foundation.org, Linux Kernel List , Michael Kelley , Vineeth Pillai , Sunil Muthuswamy , Nuno Das Neves , "K. Y. Srinivasan" , Haiyang Zhang , Stephen Hemminger , Thomas Gleixner Subject: Re: [PATCH v2 05/17] clocksource/hyperv: use MSR-based access if running as root Message-ID: <20201112112437.lt3g5bhpjym3evu5@liuwe-devbox-debian-v2> References: <20201105165814.29233-1-wei.liu@kernel.org> <20201105165814.29233-6-wei.liu@kernel.org> <3527e98a-faab-2360-f521-aa04bbe92edf@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3527e98a-faab-2360-f521-aa04bbe92edf@linaro.org> User-Agent: NeoMutt/20180716 Precedence: bulk List-ID: X-Mailing-List: linux-hyperv@vger.kernel.org On Thu, Nov 12, 2020 at 10:56:17AM +0100, Daniel Lezcano wrote: > On 05/11/2020 17:58, Wei Liu wrote: > > Signed-off-by: Wei Liu > > --- > > I would like to apply this patch but the changelog is too short (one line). > > Please add a small paragraph (no need to resend just answer here, I will > amend the log myself. Please don't apply this to your tree. It is dependent on a previous patch. I expect this series to go through the hyperv tree. I will add in this small paragraph in a later version: When Linux runs as the root partition, the setup required for TSC page is different. Luckily Linux also has access to the MSR based clocksource. We can just disable the TSC page clocksource if Linux is the root partition. If you're happy with the description, I would love to have an ack from you. I will funnel the patch via the hyperv tree. Wei.