Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp1209721imu; Tue, 20 Nov 2018 13:34:26 -0800 (PST) X-Google-Smtp-Source: AJdET5dnTi3g5dR1JJ8hxg2miiBc3PwNo+UX4L0g+WYpVeTQWbQmovFaECjLV1ov0Tt3GiJtVLAr X-Received: by 2002:a62:4e49:: with SMTP id c70mr3857148pfb.167.1542749666538; Tue, 20 Nov 2018 13:34:26 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1542749666; cv=none; d=google.com; s=arc-20160816; b=RnSdzb+wvzfWgt0RYghxgM6OZjoxPmIkyhMiM+Q9C3oqUsz200aamRe8OBTj+J4rOn D0nE/C7nlg0iu2di7u8R63mrhsND6Ch+eGDLGtmrBmqL+0VFOwJwnoR4Kj4OnsD87NcU csn8awxOnw4RvLP4O4K0VkL5Hfq+zcRwph1lv/asOZNj1owxso4cHN05AGibRQytrcmj CO0rY8SsYkbQxz5SiYxz4PPXTotb0qOUAG/vJI/8vEc8qZiOMB+5yKE5nQ+/Le298XmP TNaRsw5jJNaOihs3hV3Xnv0d1trBJCJzJgFrL9o+8evfAvp21tFzBkQeM9SLGd2H1BQ0 LEFw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:content-transfer-encoding :content-id:spamdiagnosticmetadata:spamdiagnosticoutput :content-language:accept-language:in-reply-to:references:message-id :date:thread-index:thread-topic:subject:cc:to:from:dkim-signature; bh=UsWRxGU91O8CYZ7zL9rGyKpiORdPpAPFbys5/pKXYBA=; b=TCNynMb82z8vEVr3B7p7IxIODYQ3rKO1W2my5us2s4NxUmD8kqoYp+UxK44GfIP6pL SpQzdddzXT1mgwMqCm+B8UxA/jB4j4z4EPLBvgwjsRVgULo7AWRQMvhqmvn39DVpL7VH dYQCmc9xtjG1uY0s5PLc0qAOz8HUczlfJMG+CW/3IhqoBvLP1Lb3w0SbfhPVbTcJfzCZ /WtMODW7VerIVrnWf0IOergpqJt+FQAxpYXd7P/yyv22HoaRz5ZRJW9TB8fH1KfUzvbq ldLSs+/fAp9vCWRVjtuhqDGdXyEFk1lczaZXJ0pfbOYOOS7xNC9mBupXBUZMEu9yG8iX fOaA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@vmware.com header.s=selector1 header.b=Zlr8rCn5; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=vmware.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id l61si7426123plb.6.2018.11.20.13.34.11; Tue, 20 Nov 2018 13:34:26 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@vmware.com header.s=selector1 header.b=Zlr8rCn5; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=vmware.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726070AbeKUFXH (ORCPT + 99 others); Wed, 21 Nov 2018 00:23:07 -0500 Received: from mail-eopbgr790089.outbound.protection.outlook.com ([40.107.79.89]:47021 "EHLO NAM03-CO1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725885AbeKUFXH (ORCPT ); Wed, 21 Nov 2018 00:23:07 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=vmware.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=UsWRxGU91O8CYZ7zL9rGyKpiORdPpAPFbys5/pKXYBA=; b=Zlr8rCn5VVlApoMe/ZroTu92GU8KsX+jvEWdTaJMpHmlgI28w3FdJXXSOrAwOwaB70MphVEf6vSZXGZqbquG8s+V13CDXIUo6gKWaxqkeNRb04rgnRTgk9e0NgqvU+mLSIlMz2nP4ylKpykNsg3PN1DsgHSt1ORBGBPr14tH0VI= Received: from BYAPR05MB4776.namprd05.prod.outlook.com (52.135.233.146) by BYAPR05MB4966.namprd05.prod.outlook.com (20.177.229.12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1361.14; Tue, 20 Nov 2018 18:52:26 +0000 Received: from BYAPR05MB4776.namprd05.prod.outlook.com ([fe80::a1b8:a948:4c8c:747d]) by BYAPR05MB4776.namprd05.prod.outlook.com ([fe80::a1b8:a948:4c8c:747d%4]) with mapi id 15.20.1361.013; Tue, 20 Nov 2018 18:52:26 +0000 From: Nadav Amit To: Peter Zijlstra CC: Ingo Molnar , "linux-kernel@vger.kernel.org" , "x86@kernel.org" , "H. Peter Anvin" , Thomas Gleixner , Borislav Petkov , Dave Hansen , "linux_dti@icloud.com" , "linux-integrity@vger.kernel.org" , "linux-security-module@vger.kernel.org" Subject: Re: [PATCH v5 00/10] x86/alternative: text_poke() fixes Thread-Topic: [PATCH v5 00/10] x86/alternative: text_poke() fixes Thread-Index: AQHUe48LR19TRX3+q0WdrGHXr4DmHKVYpeQAgABnWIA= Date: Tue, 20 Nov 2018 18:52:25 +0000 Message-ID: <05F89744-E7B7-4670-82E8-161CB84821A7@vmware.com> References: <20181113130730.44844-1-namit@vmware.com> <20181120124232.GK2131@hirez.programming.kicks-ass.net> In-Reply-To: <20181120124232.GK2131@hirez.programming.kicks-ass.net> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=namit@vmware.com; x-originating-ip: [66.170.99.1] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;BYAPR05MB4966;20:faYVM143eadIDJ7QKdT1sj4iK/PBWk4UkxCwD/jUiYzGND+tEhV2GR1fyYMig0Tcdgl4il9p/7dhXWhOnjaU2BANAhFjPF+cOxTTtqF2bF5QztfuEAt6/d4XnHvAHKNISuJkXSQk6vTCsCYy9dbkl7urKihB/LnWZ+BMotkKnhE= x-ms-exchange-antispam-srfa-diagnostics: SOS; x-ms-office365-filtering-correlation-id: e73ece9a-40d6-4a62-0786-08d64f195067 x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390098)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600074)(711020)(2017052603328)(7153060)(7193020);SRVR:BYAPR05MB4966; x-ms-traffictypediagnostic: BYAPR05MB4966: x-microsoft-antispam-prvs: x-ms-exchange-senderadcheck: 1 x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(8211001083)(6040522)(2401047)(8121501046)(5005006)(3231442)(944501410)(52105112)(10201501046)(3002001)(93006095)(93001095)(148016)(149066)(150057)(6041310)(20161123562045)(20161123558120)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123560045)(20161123564045)(201708071742011)(7699051)(76991095);SRVR:BYAPR05MB4966;BCL:0;PCL:0;RULEID:;SRVR:BYAPR05MB4966; x-forefront-prvs: 08626BE3A5 x-forefront-antispam-report: SFV:NSPM;SFS:(10009020)(39860400002)(396003)(346002)(376002)(136003)(366004)(199004)(189003)(68736007)(476003)(6916009)(2616005)(305945005)(486006)(229853002)(33656002)(6436002)(6486002)(256004)(14444005)(97736004)(8936002)(8676002)(7416002)(82746002)(106356001)(81166006)(105586002)(25786009)(4326008)(2900100001)(5660300001)(478600001)(53546011)(66066001)(186003)(11346002)(446003)(7736002)(76176011)(6506007)(14454004)(2906002)(99286004)(102836004)(26005)(54906003)(86362001)(53936002)(81156014)(36756003)(39060400002)(3846002)(6512007)(6116002)(316002)(83716004)(6246003)(71200400001)(71190400001);DIR:OUT;SFP:1101;SCL:1;SRVR:BYAPR05MB4966;H:BYAPR05MB4776.namprd05.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1; received-spf: None (protection.outlook.com: vmware.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: 3NAwqN7G90R74vrpt1PgFN2OUqyWZItoryhiFh3VFIYVNK+pE4zclqIt5f4V7w0CpzB/QUC6A45kalczjdVpAkpqmJKCfZtmsw7o8rC28IDGxULrwaBdwNeoeCFAUL5UYziK1RobHLMPfkLwRnapJODmkgkKlOzK0f9yrHn24TAk43N0cqwZJvJQnqEkHopLhp6ZQWS3ASbunmZdeNFXP0i7lBSaenPvNjDMheCjRMMPWImptj1brLF/9kLpymmQPnS1KRa6aSzorHCgoSXBT0BdZse6VgfPpwErZeFAY+p/Q29BZwT0a5yh12tbwmjwd3I1I/8LPooBVI/lVhFNloAUeIEiMvvW4K9KyIDvJTE= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: vmware.com X-MS-Exchange-CrossTenant-Network-Message-Id: e73ece9a-40d6-4a62-0786-08d64f195067 X-MS-Exchange-CrossTenant-originalarrivaltime: 20 Nov 2018 18:52:25.9538 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: b39138ca-3cee-4b4a-a4d6-cd83d9dd62f0 X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR05MB4966 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org PiBPbiBOb3YgMjAsIDIwMTgsIGF0IDQ6NDIgQU0sIFBldGVyIFppamxzdHJhIDxwZXRlcnpAaW5m cmFkZWFkLm9yZz4gd3JvdGU6DQo+IA0KPiBPbiBUdWUsIE5vdiAxMywgMjAxOCBhdCAwNTowNzoy MEFNIC0wODAwLCBOYWRhdiBBbWl0IHdyb3RlOg0KPj4gdjQtPnY1Og0KPj4gLSBGaXggWGVuIGJy ZWFrYWdlIFtEYW1pYW4gVG9tZXR6a2ldDQo+PiAtIEJVR19PTigpIHdoZW4gcG9raW5nX21tIGlu aXRpYWxpemF0aW9uIGZhaWxzIFtQZXRlclpdDQo+PiAtIEJldHRlciBjb21tZW50cyBvbiAieDg2 L21tOiB0ZW1wb3JhcnkgbW0gc3RydWN0Ig0KPj4gLSBDbGVhbmVyIHJlbW92YWwgb2YgdGhlIGN1 c3RvbSBwb2tlcg0KPiANCj4gSSdsbCByZS1pdGVyYXRlIG15IHBvc2l0aW9uOiBpdCBpcyBpbXBv c3NpYmxlIGZvciB0aGUgdGV4dCBub3QgdG8gbWF0Y2gsDQo+IGFuZCBpZiBpdCBzb21laG93IGRv ZXMgbm90IG1hdGNoLCBzb21ldGhpbmcgd2VudCBzaWRld2F5cyBpbiBhbg0KPiB1bnJlY292ZXJh Ymx5IGZhc2hpb24uDQo+IA0KPiB0ZXh0X3Bva2UoKSBtdXN0IG5vdCBmYWlsLCBldmVyLiBJZiBp dCBkb2VzLCBvdXIgdGV4dCBpcyBpbmNvbnNpc3RlbnQNCj4gYW5kIHdlIG11c3QgYWJvcnQvcGFu aWMvYnVnLg0KPiANCj4gVGhlIG9ubHkgd2F5IEkgd2lsbCBhY2NlcHQgYW55dGhpbmcgZWxzZSBp cyBpZiBzb21lb25lIGNhbiBjb21lIHVwIHdpdGgNCj4gYSBzZW5zaWJsZSBzY2VuYXJpbyBvZiB0 ZXh0X3Bva2UoKSBmYWlsaW5nIGFuZCByZWNvdmVyaW5nIGZyb20gaXQuDQo+IEFGQUlDVCB0aGVy ZSBpcyBubyBwb3NzaWJsZSB3YXkgdG8gZ3JhY2VmdWxseSByZWNvdmVyLg0KPiANCj4gQ29uc2lk ZXIgYSBqdW1wIGxhYmVsIHdpdGggbXVsdGlwbGUgcGF0Y2ggc2l0ZXM7IHdlIHBhdGNoIHRoZSBm aXJzdCwNCj4gdGhlbiBmYWlsLiBJbiBvcmRlciB0byByZXN0b3JlIHRvIGEgc2FuZSBzdGF0ZSwg d2UgbXVzdCB1bmRvIHRoZQ0KPiBwYXRjaGluZyBvZiB0aGUgZmlyc3QsIGJ1dCB1bmRvaW5nIHRl eHRfcG9rZSgpIGZhaWxzIGFnYWluLiBUaGVuDQo+IHdoYXQ/DQo+IA0KPiBBbGxvd2luZyB0ZXh0 X3Bva2UoKSB0byBmYWlsIG9ubHkgY3JlYXRlcyBhbiB1bmZpeGFibGUgbWVzcy4gRXNwLiBzaW5j ZQ0KPiB0aGVyZSBpcyBubyBzYW5lIHNjZW5hcmlvIHVuZGVyIHdoaWNoIGlzIGNhbiBmYWlsLg0K DQpPaywgb2suLi4gSSB0cmllZCB0byBzdGFuZCBteSBncm91bmQsIGJ1dCBJIGd1ZXNzIEkgZmFp bGVkLiBJIGRvbuKAmXQgZmVlbA0KdGhhdCBzdHJvbmdseSBhYm91dCB0aGlzIGFzc2VydGlvbiB0 byBhcmd1ZSB3aXRoIHlvdS4gSeKAmW0ganVzdCB0aGUg4oCcY2hpY2tlbuKAnQ0Ka2luZCBvZiBn dXkuDQoNCllldCwgdGFrZSBpbnRvIGNvbnNpZGVyYXRpb24gdGhhdCBJIHdpbGwgbmVlZCB0byB1 c2UgeW91IGFzIG15IOKAnHZlc3TigJ0gb25jZSBJDQpnZXQgYmVpbmcg4oCcc2hvdOKAnSBmb3Ig YWRkaW5nIEJVR19PTigpLiA7LSkNCg0KSSB3aWxsIHNlbmQgYW5vdGhlciB2ZXJzaW9uIHRvbmln aHQsIGFzc3VtaW5nIG5vIG5ldyBpc3N1ZXMgYXJlIHJhaXNlZC4NCg0KUmVnYXJkcywNCk5BZGF2