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[2620:137:e000::1:20]) by mx.google.com with ESMTP id bx10-20020a05651c198a00b0026392faf534si244655ljb.534.2022.09.09.05.47.04; Fri, 09 Sep 2022 05:47:34 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=U2EZzPQc; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231689AbiIIMN3 (ORCPT + 99 others); Fri, 9 Sep 2022 08:13:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51498 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231637AbiIIMNG (ORCPT ); Fri, 9 Sep 2022 08:13:06 -0400 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6F1A0226; Fri, 9 Sep 2022 05:11:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1662725471; x=1694261471; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=rAXi6+HHAZMlDHGDkaj3u78qfSW8KSCFPrkKbWOqt/M=; b=U2EZzPQc1su34kIwmaObh4Sf7F/ABMiMgFU5UAEppu7MHfqadND+F9NY 7TCfUaVD90mz4sudvoIHY6/ATe2kHwEszkXsvki8pygUYuw91RQ0dhbNB ltlZNhnUWI8urU3/1Zgkrd7Hd/h28WVFJH4ZiFOjIjNlVjUU1rfmttUGn lEjEdB5Y3LX0Cyd7Uuq3nx6XroPYa/QjU6BxcTkqhPVZli91WCaHcdFW9 T3BJgp0Q01qc10n3XYRNXrH7z/RGiqAKMXtRyx/i/FdZb3AAAMeet+H0b qQcYUEDTVQpj3VmrHsB2FIlern/LX410tiw0l6GGXOFbwhdOhAAewmPHQ Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10464"; a="323668276" X-IronPort-AV: E=Sophos;i="5.93,303,1654585200"; d="scan'208";a="323668276" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Sep 2022 05:11:10 -0700 X-IronPort-AV: E=Sophos;i="5.93,303,1654585200"; d="scan'208";a="615252318" Received: from omeier-mobl1.ger.corp.intel.com (HELO [10.209.54.138]) ([10.209.54.138]) by orsmga002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Sep 2022 05:11:09 -0700 Message-ID: <8d7a22f3-6677-1438-84d2-68a56211ad11@intel.com> Date: Fri, 9 Sep 2022 05:11:09 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Subject: Re: [PATCH] x86/intel: Clear SGX bit if both SGX driver and KVM SGX are not enabled Content-Language: en-US To: Kai Huang , linux-sgx@vger.kernel.org Cc: dave.hansen@linux.intel.com, seanjc@google.com, jarkko@kernel.org, linux-kernel@vger.kernel.org References: <20220909080853.547058-1-kai.huang@intel.com> From: Dave Hansen In-Reply-To: <20220909080853.547058-1-kai.huang@intel.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-9.2 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,NICE_REPLY_A, RCVD_IN_DNSWL_HI,RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE, SPF_NONE,T_SCC_BODY_TEXT_LINE 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 On 9/9/22 01:08, Kai Huang wrote: > Currently on platform which has SGX enabled, if CONFIG_X86_SGX is not > enabled, the X86_FEATURE_SGX is not cleared, resulting in /proc/cpuinfo > shows "sgx" feature. This is not desired. Why is it not desired?