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=-5.3 required=3.0 tests=BAYES_00, 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 B9523C433B4 for ; Tue, 11 May 2021 15:42:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8DE0D6162B for ; Tue, 11 May 2021 15:42:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231875AbhEKPnz (ORCPT ); Tue, 11 May 2021 11:43:55 -0400 Received: from mga17.intel.com ([192.55.52.151]:18632 "EHLO mga17.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231851AbhEKPnx (ORCPT ); Tue, 11 May 2021 11:43:53 -0400 IronPort-SDR: OrpArYHUy97RlCm3sphoN8YW2P6A1lL4AZMaOYtxhIPUSSdBYDRyMAGaHA79NLuEtreh6BD0ED oc6rbSLE5DVg== X-IronPort-AV: E=McAfee;i="6200,9189,9981"; a="179736627" X-IronPort-AV: E=Sophos;i="5.82,291,1613462400"; d="scan'208";a="179736627" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 May 2021 08:42:46 -0700 IronPort-SDR: K2SCQfHgEmPmRA7D2fYVmLD3IzbIz5C1AYPo1rmfpYZlfvqmDge5ZUrWyD++URsoqaV6svMU7u N9SjR7qWARmA== X-IronPort-AV: E=Sophos;i="5.82,291,1613462400"; d="scan'208";a="434606478" 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 08:42:45 -0700 Subject: Re: [RFC v2 16/32] x86/tdx: Handle MWAIT, MONITOR and WBINVD To: Dan Williams Cc: Kuppuswamy Sathyanarayanan , Peter Zijlstra , Andy Lutomirski , Dave Hansen , Tony Luck , Kirill Shutemov , Kuppuswamy Sathyanarayanan , Raj Ashok , Sean Christopherson , Linux Kernel Mailing List References: <0e577692-101e-38f7-ebe2-2e7222016a9f@linux.intel.com> From: Andi Kleen Message-ID: Date: Tue, 11 May 2021 08:42:44 -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: 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 On 5/11/2021 8:37 AM, Dan Williams wrote: > O > Why not just drop the patch if it continues to cause people to spend > cycles on it and it addresses a problem that will never happen? We want to at least get some kind of warning if there is really a mistake. Just dropping such an ability wouldn't seem right. That's all that the patch does really. -Andi