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=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 31922C48BCD for ; Wed, 9 Jun 2021 17:32:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 14F00613CB for ; Wed, 9 Jun 2021 17:32:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230410AbhFIReB (ORCPT ); Wed, 9 Jun 2021 13:34:01 -0400 Received: from mga12.intel.com ([192.55.52.136]:28399 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229792AbhFIRd7 (ORCPT ); Wed, 9 Jun 2021 13:33:59 -0400 IronPort-SDR: mEKs28w6UBW7Oo6FoXwVJCPRaOnA+doNMP2nmpaJRcGtb76NQU9PW4+N/DTeu4EaQ3nrLnzOuv reMst7XWqXLQ== X-IronPort-AV: E=McAfee;i="6200,9189,10010"; a="184812891" X-IronPort-AV: E=Sophos;i="5.83,261,1616482800"; d="scan'208";a="184812891" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Jun 2021 10:32:04 -0700 IronPort-SDR: 4Rnrd8b1FkD/0HaDpgwKDf+Yq0H9EQocm4DL4mk+Hhy2NEs8YmvvgDl6n4UBiaz+wLEElgHjrH d+zRPy5rH40Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.83,261,1616482800"; d="scan'208";a="485806690" Received: from fmsmsx604.amr.corp.intel.com ([10.18.126.84]) by fmsmga002.fm.intel.com with ESMTP; 09 Jun 2021 10:32:04 -0700 Received: from fmsmsx610.amr.corp.intel.com (10.18.126.90) by fmsmsx604.amr.corp.intel.com (10.18.126.84) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2242.4; Wed, 9 Jun 2021 10:32:03 -0700 Received: from fmsmsx610.amr.corp.intel.com (10.18.126.90) by fmsmsx610.amr.corp.intel.com (10.18.126.90) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2242.4; Wed, 9 Jun 2021 10:32:03 -0700 Received: from fmsmsx610.amr.corp.intel.com ([10.18.126.90]) by fmsmsx610.amr.corp.intel.com ([10.18.126.90]) with mapi id 15.01.2242.008; Wed, 9 Jun 2021 10:32:03 -0700 From: "Luck, Tony" To: Andy Lutomirski , Thomas Gleixner , Borislav Petkov CC: "Yu, Fenghua" , linux-kernel , x86 , "iommu@lists.linux-foundation.org" , "Ingo Molnar" , H Peter Anvin , "Jean-Philippe Brucker" , Christoph Hellwig , Peter Zijlstra , David Woodhouse , Lu Baolu , "Hansen, Dave" , Randy Dunlap , "Raj, Ashok" , "Pan, Jacob jun" , "Jiang, Dave" , "Mehta, Sohil" , "Shankar, Ravi V" Subject: RE: [PATCH] x86/cpufeatures: Force disable X86_FEATURE_ENQCMD and remove update_pasid() Thread-Topic: [PATCH] x86/cpufeatures: Force disable X86_FEATURE_ENQCMD and remove update_pasid() Thread-Index: AQHXVGt3asHLaBFynUG7zSoQX2rt5Kr9vnIAgAAaOACAA1lTUIAB1x8AgAj4W/A= Date: Wed, 9 Jun 2021 17:32:02 +0000 Message-ID: <7d8788a9e04d4901a03bcea11e8e842b@intel.com> References: <1600187413-163670-1-git-send-email-fenghua.yu@intel.com> <1600187413-163670-10-git-send-email-fenghua.yu@intel.com> <87mtsd6gr9.ffs@nanos.tec.linutronix.de> <87y2bv438p.ffs@nanos.tec.linutronix.de> <36866b38ec92425b879881a88acf547b@intel.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-product: dlpe-windows dlp-reaction: no-action dlp-version: 11.5.1.3 x-originating-ip: [10.1.200.100] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Pj4gSSd2ZSB0b2xkIEZlbmdodWEgdG8gZGlnIG91dCB0aGUgcHJldmlvdXMgaXRlcmF0aW9uIG9m IHRoaXMgcGF0Y2ggd2hlcmUNCj4+IHRoZSBwbGFuIHdhcyB0byBsYXppbHkgZml4IHRoZSBQQVNJ RF9NU1IgaW4gb3RoZXIgdGhyZWFkcyBpbiB0aGUgI0dQDQo+PiBoYW5kbGVyLg0KPg0KPiBCbGVj aC4gIEFsc28gdGhpcyB3b24ndCB3b3JrIGZvciBvdGhlciBQQVNJRC1saWtlIGZlYXR1cmVzLg0K Pg0KPiBJIGhhdmUgYSBoYWxmLXdyaXR0ZW4gcGF0Y2ggdG8gZml4IHRoaXMgdXAgZm9yIHJlYWwu ICBTdGF5IHR1bmVkLg0KDQpBbmR5OiBBbnkgdXBkYXRlIG9uIHRoaXM/DQoNCi1Ub255DQo=