Received: by 2002:a05:7412:37c9:b0:e2:908c:2ebd with SMTP id jz9csp636432rdb; Tue, 19 Sep 2023 06:11:52 -0700 (PDT) X-Google-Smtp-Source: AGHT+IG4LJEf5Slipz4eILKdsIdJT4i3sU5ZhQz0H2jmrrFq5u/+SnExotCVcB+/ma5iUljSFSwk X-Received: by 2002:a05:6a20:7fa6:b0:140:3aa:e2ce with SMTP id d38-20020a056a207fa600b0014003aae2cemr17194599pzj.42.1695129112480; Tue, 19 Sep 2023 06:11:52 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1695129112; cv=none; d=google.com; s=arc-20160816; b=HP3sGwv6HWHnPwKvQFrvwMuC1xQ6fvsvpmY6mhOji/PsWNJMzu/XUzC7fQjaIooLdT ZgtIvdwkvhCA19gfDVT2rtKBcagsHQ8TP1m0RRqNP0lsqKgsgkVTk/PpnTMsIBT1vYwg M0z8XTCxlf8q8+4uv2+KF9BtgGLQ5BVOQ52adsI/EpxHEMDmldlpv1YbWbkJPmfZJon2 r1uYeSw52zquuqnH23TRLq448qtxpg6BkNLGK2Llbxo/tlxTSHc+peaDNIeIUGlHDxPA igRPYTyBbs8QsL+v+q3HdfxEAs8L0QGiGt6/XpMJHCtJOI1uNVGkOcm+b/QYUDhhaP1A TuNw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:in-reply-to :organization:content-language:references:cc:to:subject:reply-to :user-agent:mime-version:date:message-id:from:dkim-signature; bh=wsOUbToZQ1AdP+t85PWWVZhgYd99YzCsWjDsvb5/YKs=; fh=9bPEuN7TT9mnkTfeH79+NLs/sGmzYKoTQpTPo50xDws=; b=ALeZYd5YJrIKL/DjXW2gJ2frBKXi8zOr5dV6ss0mxHkDa4g7Xv8LkmKKcsNCZrdt58 rssyWEs8b1XRECU/QIg3fQcGLB/89sgtEDpQFdur2Wb9/uB1ukKnr6O7XHvMpO7cJfLw wSgzTcvEmOX8u1G596U0+zCBxUWJU1n4Z9UlQE32rXP+wiikmPf5x756nbSNoNP6CK4n oU0+2LyAxUnhAojShCNOCgLVexGzVeNrbbQ31yjba+9eS0vxXNM+eZ7EukqiBGMe5r/k BG2g4POAI8eIaAJqfDVJ75UjP3opYs/9zRsx8j9f3VixT9G+CfQUU97tMH5PE3cgafTz CIpQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20230601 header.b=k0BBwEps; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:7 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Return-Path: Received: from snail.vger.email (snail.vger.email. [2620:137:e000::3:7]) by mx.google.com with ESMTPS id p10-20020a056a000b4a00b0068e39cd7acdsi9933729pfo.83.2023.09.19.06.11.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 Sep 2023 06:11:52 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:7 as permitted sender) client-ip=2620:137:e000::3:7; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20230601 header.b=k0BBwEps; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:7 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by snail.vger.email (Postfix) with ESMTP id 0BC9981A7AFD; Tue, 19 Sep 2023 01:48:36 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at snail.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230071AbjISIsi (ORCPT + 99 others); Tue, 19 Sep 2023 04:48:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48912 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229690AbjISIsh (ORCPT ); Tue, 19 Sep 2023 04:48:37 -0400 Received: from mail-wr1-x430.google.com (mail-wr1-x430.google.com [IPv6:2a00:1450:4864:20::430]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9E0D5E6; Tue, 19 Sep 2023 01:48:31 -0700 (PDT) Received: by mail-wr1-x430.google.com with SMTP id ffacd0b85a97d-3200bc30666so2146515f8f.2; Tue, 19 Sep 2023 01:48:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1695113310; x=1695718110; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:organization:content-language :references:cc:to:subject:reply-to:user-agent:mime-version:date :message-id:from:from:to:cc:subject:date:message-id:reply-to; bh=wsOUbToZQ1AdP+t85PWWVZhgYd99YzCsWjDsvb5/YKs=; b=k0BBwEpsCVAZpLkuWGJtr6JljdguGgFXdf4oVzuZkwj6ugDyQ21Z+j5dSeQ+y78p4B sk2qZ0SgQONT9NOFWpt9PTAb/WrSPlVODSiHW/3dvNTHsaVe5AdzUuv5V+/zy1wQdd64 h6t68egqjVLgX4z8La7BILlWk8JE6LCuzuu9fgGyoXQSe2RFKliCbvwsdz8syXU+/3rd p5L0uHffBTFJ2e5fju94KDHBm4wo8eSRbcOMoADLG9hEBC0Zsys1QPGzfUSP72ddNGUO XiclTY/MUHQI2ExLPdPGaojOtoye69hp/WfgAdYJJRg1M5MHVreMB34K1jsZ1Gvo6N1p 199A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1695113310; x=1695718110; h=content-transfer-encoding:in-reply-to:organization:content-language :references:cc:to:subject:reply-to:user-agent:mime-version:date :message-id:from:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=wsOUbToZQ1AdP+t85PWWVZhgYd99YzCsWjDsvb5/YKs=; b=aHKKQagIVzrxiWApDb/jFrAWfQNxstR9l+/NKPl1MAGTB8hUrIX/3DPTTdxo505KJU msCfYkjV14cYMBPj3rfX0uf4gN+5/Mwj0PFpZ8EdhgEBsiggylWBv3zkUtHorL2FaQ08 UYwfvc+d+pyzwwmL4XOGQ8NDJCG10pflI3zfV91tPw93zocLdThuVC1zmL3yuBmxF3Wv H1NTeBE8eqs1/r8sQWT5iBCLX5hbnttSMK0dv3/2wNUE1791WolbTy06ZNUhMVVCTKrg AekZPXsY/lRVJ/ewMIxD3lCb0gr36YjibE0xhR4bcrksoDTxWo7qwplLSW1sj89v7b7Z rK2Q== X-Gm-Message-State: AOJu0Yzpb7Wo+Nb1hXjNKwuilnb0rtZXfimbSI7uIX7vJlxSsBhLr6yC B3bzCV+p1ZgDR/nTS7mn/2o= X-Received: by 2002:adf:a301:0:b0:321:6833:b930 with SMTP id c1-20020adfa301000000b003216833b930mr894608wrb.16.1695113309897; Tue, 19 Sep 2023 01:48:29 -0700 (PDT) Received: from [192.168.4.177] (54-240-197-234.amazon.com. [54.240.197.234]) by smtp.gmail.com with ESMTPSA id q11-20020adff50b000000b0031c71693449sm14994344wro.1.2023.09.19.01.48.28 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 19 Sep 2023 01:48:29 -0700 (PDT) From: Paul Durrant X-Google-Original-From: Paul Durrant Message-ID: <196a645c-f41d-8f35-d854-f30b66aff2a6@xen.org> Date: Tue, 19 Sep 2023 09:48:28 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.15.1 Reply-To: paul@xen.org Subject: Re: [PATCH v3 00/13] KVM: xen: update shared_info and vcpu_info handling To: Sean Christopherson , David Woodhouse Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Paul Durrant , "H. Peter Anvin" , Borislav Petkov , Dave Hansen , Ingo Molnar , Paolo Bonzini , Thomas Gleixner , x86@kernel.org References: <20230918144111.641369-1-paul@xen.org> <8527f707315812d9ac32201b37805256fab4a0a1.camel@infradead.org> Content-Language: en-US Organization: Xen Project In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-3.6 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM,NICE_REPLY_A, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (snail.vger.email [0.0.0.0]); Tue, 19 Sep 2023 01:48:36 -0700 (PDT) On 18/09/2023 18:12, Sean Christopherson wrote: [snip] > > Tag them RFC, explain your expectations, goals, and intent in the cover letter, > don't copy+paste cover letters verbatim between versions, and summarize the RFC(s) > when you get to a point where you're ready for others to jump in. The cover > letter is *identical* from v1=>v2=>v3, how is anyone supposed to understand what > on earth is going on unless they happened to be in the same room as ya'll on > Friday? The cover letter is indeed identical because the purpose of the series has not changed. Each individual patch has a commit comment summarizing what changed from version to version or whether it is new in a perticular version. I thought this would be enough for any reviewer to be able to see what is going on. In future I will also roll these up into the cover letter. > > Doing rapid-fire, early review on beta-quality patches is totally fine, so long > as it's clear that others can effectively ignore the early versions unless they > are deeply interested or whatever. > > A disclaimer at the top of the cover letter, e.g. > > This series is a first attempt at an idea David had to improve performance > of the pfncache when KVM is emulating Xen. David and I are still working out > the details, it's probably not necessary for other folks to review this right > now. > > along with a summary of previous version and a transition from RFC => non-RFC > makes it clear when I and others are expected to get involved. > > In other words, use tags and the cover letter to communicate, don't just view the > cover letter as a necessary evil to get people to care about your patches. That was not the intention at all; I put all the detailed explanation in the commit comments because I thought that would make review *easier*. Paul