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=-0.8 required=3.0 tests=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 3A2DCC43331 for ; Mon, 11 Nov 2019 02:35:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0CABA215EA for ; Mon, 11 Nov 2019 02:35:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726888AbfKKCfm (ORCPT ); Sun, 10 Nov 2019 21:35:42 -0500 Received: from mga04.intel.com ([192.55.52.120]:35111 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726805AbfKKCfm (ORCPT ); Sun, 10 Nov 2019 21:35:42 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 10 Nov 2019 18:35:41 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.68,291,1569308400"; d="scan'208";a="403673432" Received: from fmsmsx107.amr.corp.intel.com ([10.18.124.205]) by fmsmga005.fm.intel.com with ESMTP; 10 Nov 2019 18:35:41 -0800 Received: from fmsmsx157.amr.corp.intel.com (10.18.116.73) by fmsmsx107.amr.corp.intel.com (10.18.124.205) with Microsoft SMTP Server (TLS) id 14.3.439.0; Sun, 10 Nov 2019 18:35:41 -0800 Received: from shsmsx101.ccr.corp.intel.com (10.239.4.153) by FMSMSX157.amr.corp.intel.com (10.18.116.73) with Microsoft SMTP Server (TLS) id 14.3.439.0; Sun, 10 Nov 2019 18:35:41 -0800 Received: from shsmsx103.ccr.corp.intel.com ([169.254.4.60]) by SHSMSX101.ccr.corp.intel.com ([169.254.1.213]) with mapi id 14.03.0439.000; Mon, 11 Nov 2019 10:35:39 +0800 From: "Zeng, Jason" To: Deepa Dinamani CC: David Woodhouse , "joro@8bytes.org" , "linux-kernel@vger.kernel.org" , "iommu@lists.linux-foundation.org" , "Tian, Kevin" , Arnd Bergmann , "rminnich@google.com" , "Zeng, Jason" Subject: RE: [PATCH] intel-iommu: Turn off translations at shutdown Thread-Topic: [PATCH] intel-iommu: Turn off translations at shutdown Thread-Index: AQHVlgnIrRA21rplp0+PB/+PXXgW6aeA7hBA//+Ew4CAAInEMIAAXpqAgALawYCAACUFgIAAyexg Date: Mon, 11 Nov 2019 02:35:38 +0000 Message-ID: <8D8B600C3EC1B64FAD4503F0B66C61F23BC208@SHSMSX103.ccr.corp.intel.com> References: <20191107205914.10611-1-deepa.kernel@gmail.com> <1672a5861c82c2e3c0c54b5311fd413a8eee5e64.camel@infradead.org> <8D8B600C3EC1B64FAD4503F0B66C61F23BB95B@SHSMSX103.ccr.corp.intel.com> <8D8B600C3EC1B64FAD4503F0B66C61F23BBA24@SHSMSX103.ccr.corp.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-version: 11.2.0.6 dlp-reaction: no-action x-ctpclassification: CTP_NT x-titus-metadata-40: eyJDYXRlZ29yeUxhYmVscyI6IiIsIk1ldGFkYXRhIjp7Im5zIjoiaHR0cDpcL1wvd3d3LnRpdHVzLmNvbVwvbnNcL0ludGVsMyIsImlkIjoiMmNhNjc0ODctNjRkOC00YTYxLTk5Y2QtYjc1MjI4OGNjMTM0IiwicHJvcHMiOlt7Im4iOiJDVFBDbGFzc2lmaWNhdGlvbiIsInZhbHMiOlt7InZhbHVlIjoiQ1RQX05UIn1dfV19LCJTdWJqZWN0TGFiZWxzIjpbXSwiVE1DVmVyc2lvbiI6IjE3LjEwLjE4MDQuNDkiLCJUcnVzdGVkTGFiZWxIYXNoIjoieUZINjZDZ2JtT2szZlowWENvOVlwa1NMTUoyNmZcL0ZYQktVY1BxQ0pQenZYSmlmMHdtMzgyRHZQOXhlMkR4SWcifQ== x-originating-ip: [10.239.127.40] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org DQo+IC0tLS0tT3JpZ2luYWwgTWVzc2FnZS0tLS0tDQo+IE9uIFN1biwgTm92IDEwLCAyMDE5IGF0 IDEwOjI0IEFNIERlZXBhIERpbmFtYW5pDQo+ID4gSSd2ZSBwb3N0ZWQgdGhlIHYyIHdpdGhvdXQg dGhlIGNvbmRpdGlvbmFsIGZvciBub3c6DQo+ID4gaHR0cHM6Ly9sb3JlLmtlcm5lbC5vcmcvcGF0 Y2h3b3JrL3BhdGNoLzExNTEyMjUvDQo+ID4NCj4gPiBBcyBhIHNpZGUgdG9waWMsIEknbSB0cnlp bmcgdG8gc3VwcG9ydCBodHRwczovL3d3dy5saW51eGJvb3Qub3JnLy4gSQ0KPiA+IGhhdmUgYSBj b3VwbGUgb2YgbW9yZSBzdWNoIGNsZWFudXBzIGNvbWluZy4gVGhlIFZNTSBsaXZlIHVwZGF0ZXMg YW5kDQo+ID4gbGludXhib290IHNlZW0gdG8gaGF2ZSBjb250cmFkaWN0aW5nIHJlcXVpcmVtZW50 cyBhbmQgdGhleSBib3RoIHVzZQ0KPiA+IGtleGVjLiBTbyBrZXhlY19pbl9wcm9ncmVzcyBkb2Vz bid0IHNlZW0gbGlrZSBhIHN1ZmZpY2llbnQgaW5kaWNhdG9yDQo+ID4gdG8gZGlzdGluZ3Vpc2gg YmV0d2VlbiB0aGUgdHdvLiBEbyB5b3UgYWxyZWFkeSBoYXZlIGFuIGlkZWEgb24gaG93IHRvDQo+ ID4gZGlzdGlndWlzaCBiZXR3ZWVuIHRoZW0/IERvZXMgYSBzZXBhcmF0ZSBzeXNfcmVib290KCkg Y29tbWFuZA0KPiA+IHBhcmFtZXRlciBzb3VuZCBvaz8gT3IsIHdlIGNvdWxkIHVzZSB0aGUgZmxh Z3MgaW4gdGhlIHN5c19rZXhlY19sb2FkKCkNCj4gPiBkZXBlbmRpbmcgb24gaG93IHRoZSBsaXZl IHVwZGF0ZSBmZWF0dXJlIGlzIGltcGxlbWVudGVkLg0KPiANCj4gQWxzbywgdGhlIEFNRCBkcml2 ZXIgZGlzYWJsZXMgaW9tbXUgYXQgc2h1dGRvd24gYWxyZWFkeS4gU28gdGhlIGxpdmUgdXBkYXRl DQo+IGZlYXR1cmUgaXMgYWxyZWFkeSBicm9rZW4gb24gQU1ELg0KPiANCg0KSGkgRGVlcGEsDQoN CkkgdGhpbmsgeW91IG1heSBub3QgbmVlZCB0byBjb25zaWRlciB0b28gbXVjaCBWTU0gbGl2ZSB1 cGRhdGUgaGVyZSAoYWx0aG91Z2ggaXQNCndvdWxkIGJlIGdvb2QgdG8gY29uc2lkZXIgcG9zc2li bGUgZnV0dXJlIGZlYXR1cmVzKSwgYWZ0ZXIgYWxsIGl0IGlzIGFuIG9uLWdvaW5nIGVmZm9ydCwN CndlIGFyZSBzdGlsbCBub3QgcXVpdGUgc3VyZSB3aGF0IGV4YWN0IG1vZGlmaWNhdGlvbnMgaXQg bmVlZHMuIFRoZSBWTU0gbGl2ZSB1cGRhdGUNCml0c2VsZiB3aWxsIGZpZ3VyZSBvdXQgd2hhdCBp cyB0aGUgYmVzdCB3YXkgdG8gbW9kaWZ5IHRoZSBjb2RlLg0KDQpUaGFua3MsDQpKYXNvbg0KDQo+ IC1EZWVwYQ0K