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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6A759C433F5 for ; Mon, 25 Oct 2021 14:36:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4697560720 for ; Mon, 25 Oct 2021 14:36:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231302AbhJYOjC (ORCPT ); Mon, 25 Oct 2021 10:39:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41732 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232263AbhJYOiS (ORCPT ); Mon, 25 Oct 2021 10:38:18 -0400 Received: from mail-pf1-x429.google.com (mail-pf1-x429.google.com [IPv6:2607:f8b0:4864:20::429]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 26DDCC061745 for ; Mon, 25 Oct 2021 07:35:56 -0700 (PDT) Received: by mail-pf1-x429.google.com with SMTP id l203so6228856pfd.2 for ; Mon, 25 Oct 2021 07:35:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=unr/hPV1LRtaLFGvElzu8J0G2Us0ndUhxKDwst/EiBY=; b=LAlUCiUiThQLZqtR7k3VnyoObMeALAS0ZF9AaHeUoiJS1guNshz6Ho9BFs5fGeESUF q2uQw8bg3OcuTvEaIKGTbCG74e1HYpHPSEZChn9Fui/OXyFCbVB6QffuLlZuyQC4/uQf dGmSKBnuqEZd0HOd9FWNHYt0CKXWl00V4xD0baZyEsJC9VPu3MlxhGJT2M9rNeXhmm5W UWGLfI/FJZIrNea7hGz9eDiHhGcAJZad6ccR6CGhZCEbW+61HPcmiywR2MfrWgoOFoet tTXPL9wIOxueZy8L6p1PVSiKxbew7wnvCvbqwTi/QRy9OUhSavq7f0H9GFeEPT+vkdJT 8pbg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=unr/hPV1LRtaLFGvElzu8J0G2Us0ndUhxKDwst/EiBY=; b=lRR8KGjxAo0b1kZhv7b7kZBxmMAltnP7LdESul44+StzXjGQsVcvemsJWOiMWH//Vo 7VWyiihVXG4H+8OzbdZVdkvsKFlWQzRpJ+NvR9yqDSysGbI7GDeWjgFMFY/hb/HcZq6Q IllqnMCV5q4/7h7gRvjWdGNKq5OuC1K0Eyx+Ds0KVCEpouJCy3G1NJwQhKnR0qzvHWhQ aYVfwa3eq0Vfs78DFFyBaySoP/OHRjoARIFTSg4Uf6b/XDrUJElz/qq4MbbI/SAasg2e LkpHxbsORofD80RpD7mK4zhsOpLI7hGCo0OMQM9uSIQQuwak5R6etEbhPBHlL5oFuheO r21A== X-Gm-Message-State: AOAM533LVstS0z4UjtUm4N362fF2FQGxztU3vmZcO7EX2e9O2A9vX6+a DuZlPMMp7pqTTQGvuB7H3k+BMQ== X-Google-Smtp-Source: ABdhPJyb/BEP9mJoL1RpL20RH+Q8i1MKzoGl1tSo55m13uMQcZrHOrIVQIJiC/lW0QvegrL/3HqJkw== X-Received: by 2002:a65:6a4b:: with SMTP id o11mr13582903pgu.278.1635172555538; Mon, 25 Oct 2021 07:35:55 -0700 (PDT) Received: from google.com (157.214.185.35.bc.googleusercontent.com. [35.185.214.157]) by smtp.gmail.com with ESMTPSA id cm16sm984666pjb.56.2021.10.25.07.35.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Oct 2021 07:35:54 -0700 (PDT) Date: Mon, 25 Oct 2021 14:35:50 +0000 From: Sean Christopherson To: Paolo Bonzini Cc: Maxim Levitsky , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , kvm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 0/4] KVM: x86: APICv cleanups Message-ID: References: <20211022004927.1448382-1-seanjc@google.com> <23d9b009-2b48-d93c-3c24-711c4757ca1b@redhat.com> <9c159d2f23dc3957a2fda0301b25fca67aa21b30.camel@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Fri, Oct 22, 2021, Paolo Bonzini wrote: > So yeah, I think you're right. Yep. The alternative would be to explicitly check for a pending APICv update. I don't have a strong opinion, I dislike both options equally :-) Want me to type up a v3 comment?