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,DKIM_SIGNED, DKIM_VALID,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 9D585C43457 for ; Mon, 19 Oct 2020 20:49:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 466D1223FD for ; Mon, 19 Oct 2020 20:49:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=intel.onmicrosoft.com header.i=@intel.onmicrosoft.com header.b="VMime1YE" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732368AbgJSUtv (ORCPT ); Mon, 19 Oct 2020 16:49:51 -0400 Received: from mga01.intel.com ([192.55.52.88]:7627 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727715AbgJSUtv (ORCPT ); Mon, 19 Oct 2020 16:49:51 -0400 IronPort-SDR: UO+D5eve4OBVKpvf4AJQwjZVpyw3PQNqdzSzakOORa5s4hKu3xG78myT1m3aPbZ2TDF17vdBgC vbZ5E2BZP9NQ== X-IronPort-AV: E=McAfee;i="6000,8403,9779"; a="184718632" X-IronPort-AV: E=Sophos;i="5.77,395,1596524400"; d="scan'208";a="184718632" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Oct 2020 13:49:47 -0700 IronPort-SDR: w/3NM8H105BTAEvZhjkieIszbtag/knWVoeJZnHHmsqlwDrNtk8o1/AwaKLEHVHDKsqk6CcSqd IvGxy4K3dP+Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,395,1596524400"; d="scan'208";a="348020008" Received: from fmsmsx606.amr.corp.intel.com ([10.18.126.86]) by orsmga008.jf.intel.com with ESMTP; 19 Oct 2020 13:49:46 -0700 Received: from fmsmsx607.amr.corp.intel.com (10.18.126.87) by fmsmsx606.amr.corp.intel.com (10.18.126.86) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Mon, 19 Oct 2020 13:49:46 -0700 Received: from fmsmsx603.amr.corp.intel.com (10.18.126.83) by fmsmsx607.amr.corp.intel.com (10.18.126.87) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Mon, 19 Oct 2020 13:49:46 -0700 Received: from fmsedg601.ED.cps.intel.com (10.1.192.135) by fmsmsx603.amr.corp.intel.com (10.18.126.83) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5 via Frontend Transport; Mon, 19 Oct 2020 13:49:46 -0700 Received: from NAM10-BN7-obe.outbound.protection.outlook.com (104.47.70.104) by edgegateway.intel.com (192.55.55.70) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.1713.5; Mon, 19 Oct 2020 13:49:45 -0700 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=cDgVSc4Jmd6biAZhCZV8zLnLQYzOi3dYxVZqYS3K+4suYpDh3gxd6Y7HwFb0ucr1yAHbrJyInJkhLV3BhJwTd9CB3rOOUYKu7pX5LCu0GYA+JriYXiN5KdJNC6VADF7rseJ2JkNLXpTkTbkGHhvtqV4maJV0C9rSW2KB0UNijAAokkfeRI1qC7/WVSc33j0BEEVCFGItBfWKrzdeBYQTgE+hN+KmorSxra5DoSFga514wy3kdWhOJcWdXKGKWz0F2e3sMRU5fcGoatvlNsPmQdpoivFpc3o10h9QvfsORsk3do8F/rfjpbn6tJHwZw4gpVfCZmTMRyr3ZapHXIurrw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Vh033PO9nYMOrpRMU3FEichHXw34ZzcskPVajW5eWdQ=; b=bbzQuxvXoZ0OoFKyfo4lQfrRHOcuRUp5+O7vj/8VvJSj24xIk20TVFFcxdSMrQ142aQf6RTFcpkm0mHesBotYvt3HlnqN/pmFzAW7K5RvHckifsZW6Kpaxx56WHH807I4M7hLCWvLuB28MrRBkKT09cPuhiZY8qFEOrH5TeK6SmQl3wlL6yF+iOWsiGYTIW68ELmbVcRFSsgd9twxGj+qX29C84dhiQED0oWB74WPrRg7JmJK7M5X9StRqERX1IEktuxOewmJzKN+aLDpXfOFoKuKRvO+sLA39zWBscl+cTbg60xigqD0tzm+efPjuL8gLVAaJRiF0V0u8j7bxEAvA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=intel.com; dmarc=pass action=none header.from=intel.com; dkim=pass header.d=intel.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel.onmicrosoft.com; s=selector2-intel-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Vh033PO9nYMOrpRMU3FEichHXw34ZzcskPVajW5eWdQ=; b=VMime1YEV+qfQJIOf9sOcslNe7eTqaalwqhCqq1nDZgluKTV5pYM72dWRp54EZXRO9r0XhMH83vkjet/JzlDkuuYpG8QoJ6tiW9LnypSNoGGV97sUfxvDPDokBq2iEEi4ig87buLg1ACuhsi8S2BrOtYWzbdKl95DmDDsGYTexo= Received: from SN6PR11MB3184.namprd11.prod.outlook.com (2603:10b6:805:bd::17) by SA2PR11MB4810.namprd11.prod.outlook.com (2603:10b6:806:116::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3477.23; Mon, 19 Oct 2020 20:49:44 +0000 Received: from SN6PR11MB3184.namprd11.prod.outlook.com ([fe80::b901:8e07:4340:6704]) by SN6PR11MB3184.namprd11.prod.outlook.com ([fe80::b901:8e07:4340:6704%7]) with mapi id 15.20.3477.028; Mon, 19 Oct 2020 20:49:44 +0000 From: "Edgecombe, Rick P" To: "linux-kernel@vger.kernel.org" , "kvm@vger.kernel.org" , "bgardon@google.com" CC: "kernellwp@gmail.com" , "jmattson@google.com" , "Christopherson, Sean J" , "vkuznets@redhat.com" , "peterx@redhat.com" , "yulei.kernel@gmail.com" , "pshier@google.com" , "pfeiner@google.com" , "cannonmatthews@google.com" , "xiaoguangrong.eric@gmail.com" , "pbonzini@redhat.com" , "junaids@google.com" Subject: Re: [PATCH v2 07/20] kvm: x86/mmu: Support zapping SPTEs in the TDP MMU Thread-Topic: [PATCH v2 07/20] kvm: x86/mmu: Support zapping SPTEs in the TDP MMU Thread-Index: AQHWolfRezmt0QLaq0i752J87u6M5amfbg0A Date: Mon, 19 Oct 2020 20:49:43 +0000 Message-ID: References: <20201014182700.2888246-1-bgardon@google.com> <20201014182700.2888246-8-bgardon@google.com> In-Reply-To: <20201014182700.2888246-8-bgardon@google.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Evolution 3.30.1 (3.30.1-1.fc29) authentication-results: vger.kernel.org; dkim=none (message not signed) header.d=none;vger.kernel.org; dmarc=none action=none header.from=intel.com; x-originating-ip: [192.55.55.45] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 6684e87b-1290-4b0f-d659-08d874708218 x-ms-traffictypediagnostic: SA2PR11MB4810: x-ld-processed: 46c98d88-e344-4ed4-8496-4ed7712e255d,ExtAddr x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:9508; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: juav2Ezj/BDEHspFVX1LC+FS5qNSApQTLG7gQLxekwK3kJH9mpd/bm3DTRnpTvBiVv7sYRdx3cjPBigaaVaszhwdH3ewiOC+FNLlvgasNOKqLtHMfvooDXX2kIBVAQZpLa7gokPdvowNOEgKLymPedr2gZoD/Jo/5a0QDOBpI3pt2x/LIYJL9MpqlX2KDkSD/9EKLkGqsbaO6YWXLMYCQj3ecSWsyptJLOe4+J7gH1/k/3RaWEeH9ama8Ggu6op7xf84qa7s7HnGfGeTM6XnBUaKQT9Di/Oz9jvgBZqRfjJ7LZKAWasd66cwkYeH2UdFgwRAokAgDnyofGkv7FA+MA== x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:SN6PR11MB3184.namprd11.prod.outlook.com;PTR:;CAT:NONE;SFS:(4636009)(39860400002)(136003)(346002)(376002)(366004)(396003)(71200400001)(478600001)(83380400001)(86362001)(186003)(2906002)(26005)(6506007)(6486002)(2616005)(54906003)(6512007)(4326008)(110136005)(64756008)(316002)(5660300002)(4001150100001)(8936002)(66556008)(7416002)(66476007)(8676002)(36756003)(76116006)(91956017)(66946007)(66446008);DIR:OUT;SFP:1102; x-ms-exchange-antispam-messagedata: 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 Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: SN6PR11MB3184.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 6684e87b-1290-4b0f-d659-08d874708218 X-MS-Exchange-CrossTenant-originalarrivaltime: 19 Oct 2020 20:49:43.7991 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: K1XL26KvXZRlhb1ScqxkH42k1vqF+cSImWSh5geCrCg5es5R3in5zHwCc57yF3tc7Oje8XuUN6HTF6gohQF3eg1q8viZ/qllR7nqWpdnKOM= X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA2PR11MB4810 X-OriginatorOrg: intel.com Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org T24gV2VkLCAyMDIwLTEwLTE0IGF0IDExOjI2IC0wNzAwLCBCZW4gR2FyZG9uIHdyb3RlOg0KPiBA QCAtNTgyNyw2ICs1ODMxLDcgQEAgdm9pZCBrdm1femFwX2dmbl9yYW5nZShzdHJ1Y3Qga3ZtICpr dm0sIGdmbl90DQo+IGdmbl9zdGFydCwgZ2ZuX3QgZ2ZuX2VuZCkNCj4gICAgICAgICBzdHJ1Y3Qg a3ZtX21lbXNsb3RzICpzbG90czsNCj4gICAgICAgICBzdHJ1Y3Qga3ZtX21lbW9yeV9zbG90ICpt ZW1zbG90Ow0KPiAgICAgICAgIGludCBpOw0KPiArICAgICAgIGJvb2wgZmx1c2g7DQo+ICANCj4g ICAgICAgICBzcGluX2xvY2soJmt2bS0+bW11X2xvY2spOw0KPiAgICAgICAgIGZvciAoaSA9IDA7 IGkgPCBLVk1fQUREUkVTU19TUEFDRV9OVU07IGkrKykgew0KPiBAQCAtNTg0Niw2ICs1ODUxLDEy IEBAIHZvaWQga3ZtX3phcF9nZm5fcmFuZ2Uoc3RydWN0IGt2bSAqa3ZtLCBnZm5fdA0KPiBnZm5f c3RhcnQsIGdmbl90IGdmbl9lbmQpDQo+ICAgICAgICAgICAgICAgICB9DQo+ICAgICAgICAgfQ0K PiAgDQo+ICsgICAgICAgaWYgKGt2bS0+YXJjaC50ZHBfbW11X2VuYWJsZWQpIHsNCj4gKyAgICAg ICAgICAgICAgIGZsdXNoID0ga3ZtX3RkcF9tbXVfemFwX2dmbl9yYW5nZShrdm0sIGdmbl9zdGFy dCwNCj4gZ2ZuX2VuZCk7DQo+ICsgICAgICAgICAgICAgICBpZiAoZmx1c2gpDQo+ICsgICAgICAg ICAgICAgICAgICAgICAgIGt2bV9mbHVzaF9yZW1vdGVfdGxicyhrdm0pOw0KPiArICAgICAgIH0N Cj4gKw0KPiAgICAgICAgIHNwaW5fdW5sb2NrKCZrdm0tPm1tdV9sb2NrKTsNCj4gIH0NCg0KSGks DQoNCkknbSBqdXN0IGdvaW5nIHRocm91Z2ggdGhpcyBsb29raW5nIGF0IGhvdyBJIG1pZ2h0IGlu dGVncmF0ZSBzb21lIG90aGVyDQpNTVUgY2hhbmdlcyBJIGhhZCBiZWVuIHdvcmtpbmcgb24uIEJ1 dCBhcyBsb25nIGFzIEkgYW0sIEknbGwgdG9zcyBvdXQNCmFuIGV4dHJlbWVseSBzbWFsbCBjb21t ZW50IHRoYXQgdGhlICJmbHVzaCIgYm9vbCBzZWVtcyB1bm5lY2Vzc2FyeS4NCg0KSSdtIGFsc28g d29uZGVyaW5nIGEgYml0IGFib3V0IHRoaXMgZnVuY3Rpb24gaW4gZ2VuZXJhbC4gSXQgc2VlbXMg dGhhdA0KdGhpcyBjaGFuZ2UgYWRkcyBhbiBleHRyYSBmbHVzaCBpbiB0aGUgbmVzdGVkIGNhc2Us IGJ1dCB0aGlzIG9wZXJhdGlvbg0KYWxyZWFkeSBmbHVzaGVkIGZvciBlYWNoIG1lbXNsb3QgaW4g b3JkZXIgdG8gZmFjaWxpdGF0ZSB0aGUgc3BpbiBicmVhay4NCklmIHNsb3RfaGFuZGxlX2xldmVs X3JhbmdlKCkgdG9vayBzb21lIGV4dHJhIHBhcmFtZXRlcnMgaXQgY291bGQgbWF5YmUNCmJlIGF2 b2lkZWQuIE5vdCBzdXJlIGlmIGl0J3Mgd29ydGggaXQuDQoNClJpY2sNCg==