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=-7.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 EB20BC2B9F7 for ; Fri, 28 May 2021 16:58:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B8961611C9 for ; Fri, 28 May 2021 16:58:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236920AbhE1Q7i (ORCPT ); Fri, 28 May 2021 12:59:38 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:49769 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230337AbhE1Q70 (ORCPT ); Fri, 28 May 2021 12:59:26 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1622221071; 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:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=nsUDfVx6kw1QKKH4CSV+8SNh91THtBJmewd0AtxZsM0=; b=c2skMdoTMJRIkLkofoNFXOg/9jGRnjy0WqJLJcdFjO/FOf/+o6fO2rHr6N0JUug472zvbt FHU+cjnVfekV4WmmwbLtPCBFhott69xdXmHxL5JddunocdKQ7QW2eIkKfyIfHg2nkX4hJy XnkqHJ4iLMFZt65u26Qg03QYOodf9Go= Received: from mail-ej1-f72.google.com (mail-ej1-f72.google.com [209.85.218.72]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-220-p_NMhzPdPYKhaiJWeflKjg-1; Fri, 28 May 2021 12:57:46 -0400 X-MC-Unique: p_NMhzPdPYKhaiJWeflKjg-1 Received: by mail-ej1-f72.google.com with SMTP id qk29-20020a170906d9ddb02903e6eb7046f6so1267960ejb.4 for ; Fri, 28 May 2021 09:57:45 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=nsUDfVx6kw1QKKH4CSV+8SNh91THtBJmewd0AtxZsM0=; b=qiGz16jEI1w5tCtGsRfBJaCUOJn/rEIJ+WUl2oHCZ0K+6AyNb+VcUkrv5atCu3Fz2I prgHPk5Xr6BaxMwOlvEMFY4D9YRGpN3HgucEFeN9DrDAQ1Zi2KwkMbrNJ1sJuu1ZRA+N X6hxVM8mHEUL4bCUGKYlkhFYjsctyz2qBVyZb9outTVUX6rwte/bThYwIKuxmEMhd96E Z5JUALKzwoHEmFladCGTLaV/SbDo5EGZdxIDM1Bg4VYY1DAW8HFEhWXalWQt9aQzJQXm wYNZe61MpbJ+Pxx9mGxj5NyqV7BnRHz3R6YpuA5R22x/rUjOKDugc1dOa6nPQCUsFlad 405w== X-Gm-Message-State: AOAM533M0GGNGoaaM38MyUm9EtW7N1ZcnI5DDLJNxuB2RAOql278F8XR l6YGpMrEMcBYvY0Qy/cb0suXRQEFSpp24WQW6S6osWvDebabIVWjICJAj8zHi19tOTZms4023mP +QEuo8P6gu1RzXWPUkxNrw+9n X-Received: by 2002:a17:906:a88c:: with SMTP id ha12mr10040289ejb.129.1622221064241; Fri, 28 May 2021 09:57:44 -0700 (PDT) X-Google-Smtp-Source: ABdhPJz7sI8kp8yuGAgJ1e35LlzT33u7gefY6svEG8stz3Z+BamOigP5rdwUT8mplASzQlfiImy/Jw== X-Received: by 2002:a17:906:a88c:: with SMTP id ha12mr10040273ejb.129.1622221064030; Fri, 28 May 2021 09:57:44 -0700 (PDT) Received: from ?IPv6:2001:b07:6468:f312:c8dd:75d4:99ab:290a? ([2001:b07:6468:f312:c8dd:75d4:99ab:290a]) by smtp.gmail.com with ESMTPSA id l19sm2197864edw.58.2021.05.28.09.57.42 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 28 May 2021 09:57:43 -0700 (PDT) Subject: Re: [PATCH] Move VMEnter and VMExit tracepoints closer to the actual event To: Dario Faggioli , Sean Christopherson , Stefano De Venuto Cc: linux-kernel@vger.kernel.org, vkuznets@redhat.com, wanpengli@tencent.com, jmattson@google.com, x86@kernel.org, hpa@zytor.com, kvm@vger.kernel.org, rostedt@goodmis.org, y.karadz@gmail.com References: <20210519182303.2790-1-stefano.devenuto99@gmail.com> From: Paolo Bonzini Message-ID: Date: Fri, 28 May 2021 18:57:42 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 28/05/21 18:55, Dario Faggioli wrote: > So, Paolo, just to be sure, when you said "the tracepoint on SVM could > match the clgi/stgi region", did you mean they should be outside of > this region (i.e., trace_kvm_enter() just before clgi() and > trace_kvm_exit() after stgi())? Or vice versa?:-) Just outside, yes. Paolo