Received: by 2002:a05:6a10:206:0:0:0:0 with SMTP id 6csp3739120pxj; Tue, 11 May 2021 10:50:17 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyNOhhppD/ylmrPMdZGpKV1xAPZvyOSoK4w6BzfPwIRO60BzrkqzeI0zF55nsZs1MxH11lW X-Received: by 2002:a4a:be86:: with SMTP id o6mr6798769oop.67.1620755417002; Tue, 11 May 2021 10:50:17 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1620755416; cv=none; d=google.com; s=arc-20160816; b=p49AK9W8F8z4AMPSnXVp9Byq2Csy8+1KUazhnKtQPnDygPs8+hh/TzK+oGRat8BNiQ n6z6N90aIyq0Rcs1XWYefkznQEmwI9ztu98Pff+jxkJJsBKiBuWzyTdx7Pt9eOsSmV8z EEqYHwjZGoNhQjnEntoHM6PB4FmLTVVidJp1Q+uSStcqDefqQSeLujaZBH1FTakUkAEe NcGPvp98L31m4fTFMP2U/RuEW/OMKdmdwfvljOc5tZ2wZPPvh/cGUj7+U//viTdSaDwn oQ3n+IS0oAo+jZmftzBZFWCTZt4ViDgLV4oUuBtDcLRKxuI4zc/pFF62v04ApKCycEqN FkpQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-language:content-transfer-encoding :in-reply-to:mime-version:user-agent:date:message-id:from:references :cc:to:subject:ironport-sdr:ironport-sdr; bh=HujJ1U34CZ9jhZJOHhNFSAZc0+A2UuL60Hda3xjdx98=; b=RrT3w0jW53SLNTkRD417kX6lPvcK41IMSrVPQGem2n3G9+weIihUxq/C7QdBwqqVhS aPazrej4Ck6vCrRbPr6KV/OXShK0kBSUxDZGCWMM9QTQcOMn0qll33nZRCWZbqm7N/OT vHAqX5THb/5EDsBHa5WJaCBSjSl4T/R66bXRVJB0f8yilQVAlTEu0jaOD5zYTWk4H5Fo dUirBKiPBHc76GBtGRR5QHpS5Gbm92CKwfn5l2skdAGdtv0yqwCh2EhSLp5cEGnrlxxV M2BitgbBRj51Rpf0qhPKwRw6596tIKlI7VPd6ZcI4G3DmOGvMkEWungo41sAkrkHucHU DOEw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id f67si19727869otf.15.2021.05.11.10.50.03; Tue, 11 May 2021 10:50:16 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231839AbhEKRt5 (ORCPT + 99 others); Tue, 11 May 2021 13:49:57 -0400 Received: from mga14.intel.com ([192.55.52.115]:49851 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231329AbhEKRtz (ORCPT ); Tue, 11 May 2021 13:49:55 -0400 IronPort-SDR: 8jauGyadY6V+E0devMv0uF8u4vO4CfxyeOmmsqpsoqFO++phs/iBXB/YuhscetadyCKnPlWqvt uMpQxlbdgTYg== X-IronPort-AV: E=McAfee;i="6200,9189,9981"; a="199185957" X-IronPort-AV: E=Sophos;i="5.82,291,1613462400"; d="scan'208";a="199185957" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 May 2021 10:48:48 -0700 IronPort-SDR: 72faQjpAY4lKRNahWBGfO9AC6niJ6R39iKz6fqXAImoeSwx0a8EHZxde2uQdH8GICoxa+Rm0ML UAMeiwGSs5fA== X-IronPort-AV: E=Sophos;i="5.82,291,1613462400"; d="scan'208";a="434704547" Received: from akleen-mobl1.amr.corp.intel.com (HELO [10.212.131.161]) ([10.212.131.161]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 May 2021 10:48:47 -0700 Subject: Re: [RFC v2 16/32] x86/tdx: Handle MWAIT, MONITOR and WBINVD To: Dave Hansen , Dan Williams Cc: Kuppuswamy Sathyanarayanan , Peter Zijlstra , Andy Lutomirski , Tony Luck , Kirill Shutemov , Kuppuswamy Sathyanarayanan , Raj Ashok , Sean Christopherson , Linux Kernel Mailing List References: <0e577692-101e-38f7-ebe2-2e7222016a9f@linux.intel.com> <43e0a5cc-721a-04f1-50b6-b1319da10bac@intel.com> <01b0e007-6af6-ca2e-2a0d-7ff4ca2a2927@linux.intel.com> <4456b0d0-c392-4691-2963-c349369158c3@intel.com> <497d9293-9111-5d2e-2d19-7343467ff9cd@linux.intel.com> <55fd7fbe-4d36-1c1d-532b-bfa876542cd7@intel.com> From: Andi Kleen Message-ID: <37ad50ca-f568-4c62-56e2-9e9b1f34084c@linux.intel.com> Date: Tue, 11 May 2021 10:48:46 -0700 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.10.1 MIME-Version: 1.0 In-Reply-To: <55fd7fbe-4d36-1c1d-532b-bfa876542cd7@intel.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > Is there a good reason for the enduring "general protection fault..." > message other than an aversion to refactoring the code? You're the first ever to think it's a problem. We're assuming that kernel developers are smart enough to understand this. Please I implore everyone to move on from this patch. This is my last email on this topic. -Andi