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=-5.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 6F4D4C2BA2B for ; Sun, 19 Apr 2020 05:08:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3868D206CD for ; Sun, 19 Apr 2020 05:08:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=marvell.com header.i=@marvell.com header.b="Pt3bl+9Z"; dkim=pass (1024-bit key) header.d=marvell.onmicrosoft.com header.i=@marvell.onmicrosoft.com header.b="hNqDcqvE" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725914AbgDSFIa (ORCPT ); Sun, 19 Apr 2020 01:08:30 -0400 Received: from mx0a-0016f401.pphosted.com ([67.231.148.174]:17576 "EHLO mx0b-0016f401.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725769AbgDSFIa (ORCPT ); Sun, 19 Apr 2020 01:08:30 -0400 Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 03J57iuO019262; Sat, 18 Apr 2020 22:07:44 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : references : in-reply-to : content-type : content-id : content-transfer-encoding : mime-version; s=pfpt0818; bh=Hze6eJcQaBvBwRk4Uu8GpnnohOomUk3J0gv4mNvf8vM=; b=Pt3bl+9ZC2iQrHb9khdTf2HZWKmdlnxT5TmxEFV7BH/b22Te91Jm5AMv0zlOKtW+wPpn 6rEZbYMpgmMES8N940N52JTCbx/NaKV1fwVD4FnY2Lm0XTUjLP3wQazwZKImUhxY6Shp 7No21rKp6zi3NuVBvn+4SSVrpeYpESyTzmJoY7eYrq/GdJ21wbHLbvcEVAAVuHP9X/AV oMP5svtc1+5wqRS/Ffp7Z3rRix4RsgFgAxEQjFLo8bMi0Wl655pPAwM2nYPZ4MKwZWbS PAQDcmADR/leLT+2xQVj7kxXHVtbgC6Dps2r0h/2ocUi2Kk3v58RsD/JxxyqZiB9FXpc CQ== Received: from sc-exch02.marvell.com ([199.233.58.182]) by mx0a-0016f401.pphosted.com with ESMTP id 30fxwp2s25-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Sat, 18 Apr 2020 22:07:44 -0700 Received: from SC-EXCH01.marvell.com (10.93.176.81) by SC-EXCH02.marvell.com (10.93.176.82) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sat, 18 Apr 2020 22:07:43 -0700 Received: from NAM10-MW2-obe.outbound.protection.outlook.com (104.47.55.108) by SC-EXCH01.marvell.com (10.93.176.81) with Microsoft SMTP Server (TLS) id 15.0.1497.2 via Frontend Transport; Sat, 18 Apr 2020 22:07:43 -0700 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=P0dWnN/FsBNHNEvt7xRdKmLbrpUcLZ4nwi5iR3y+tpZSaOhofebAOVwgK0xY8sw6pvam/kqNk2NLfgj/wK2qO68RXjwLqnolbxKqwbAMRIPmpbwKsXvw73gHUw4r9y4oVzW0WBMCOAY6dIQucrb3e8XDSeHutubAyRDmrQBcmPSLGMloCHAx89TxcjLgcPNW0PlyNmNxJqY+XA4hF22NiOHcZ97YucjstF+6I5pVsTffzrJ2gXp/tb/9ZAy/vO9RXzqOE+W4/KTTdyUxg6H0+ra3ESxuXNbWR4sANHG8NH6Jz4WH/i9xeM6jPtpJMFGwwTOZsvbHDGHomAwnMwBoXw== 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=Hze6eJcQaBvBwRk4Uu8GpnnohOomUk3J0gv4mNvf8vM=; b=jzzZmnbcjtmybp3lm5PY45QcULi+lzPjQ2QFK1IKxnykuAYivZkupn2l8IDj/K1kmaUH1UD1Z+bFmjfgxdDOa/lKb+r0qnA9rUoKQCE82pnWXBEKiBlXBNm9wSOqqVnrAHh+Nd1ITLcWn+lAL92Vx2RX7+alk57g3x+LKR6sEyiTI8jAfKIpUxKJ4lcIOPZEQb2Ngfu9R4UFvs7Ct7fNsgz838rPP7yJ7JGk3JWEdb6S6Kx+7jZe75+r7ZU6EGBg5Kpjw4GpRxxgFR6GcNeVgxu6zkBWjd1Zb4bvj0zX28oxmvNb1Q5QVYMDuMKilzaVeds7Tk9v9HHzv30fiD3tnA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=marvell.com; dmarc=pass action=none header.from=marvell.com; dkim=pass header.d=marvell.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.onmicrosoft.com; s=selector1-marvell-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Hze6eJcQaBvBwRk4Uu8GpnnohOomUk3J0gv4mNvf8vM=; b=hNqDcqvETGN66slKJ8iKPL2V9YAWQq/7Pbh7AP8bVmzNuCtiHxn7JlVsiAmQE5zqYMTb98cn4Pl2TCYyWntqoJN64SD4CDKQMEo40Ku+fraG+vp01ka+xadBCdetO39KNZxoMcz5uvCqloBiZuUsp0EEmXqNDsVCjgXj7WTlhZM= Received: from BYAPR18MB2535.namprd18.prod.outlook.com (2603:10b6:a03:137::17) by BYAPR18MB2933.namprd18.prod.outlook.com (2603:10b6:a03:10e::33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2921.29; Sun, 19 Apr 2020 05:07:42 +0000 Received: from BYAPR18MB2535.namprd18.prod.outlook.com ([fe80::65f8:9bfe:5fa5:1280]) by BYAPR18MB2535.namprd18.prod.outlook.com ([fe80::65f8:9bfe:5fa5:1280%3]) with mapi id 15.20.2921.027; Sun, 19 Apr 2020 05:07:41 +0000 From: Alex Belits To: "luto@amacapital.net" CC: "mingo@kernel.org" , "davem@davemloft.net" , "linux-api@vger.kernel.org" , "rostedt@goodmis.org" , "peterz@infradead.org" , "linux-arch@vger.kernel.org" , Prasun Kapoor , "catalin.marinas@arm.com" , "frederic@kernel.org" , "tglx@linutronix.de" , "will@kernel.org" , "linux-kernel@vger.kernel.org" , "netdev@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" Subject: Re: [PATCH v3 04/13] task_isolation: userspace hard isolation from kernel Thread-Topic: [PATCH v3 04/13] task_isolation: userspace hard isolation from kernel Thread-Index: AQHWFgh0Cq6Sp1qrB0WB/pY8n1YWIQ== Date: Sun, 19 Apr 2020 05:07:41 +0000 Message-ID: References: <58995f108f1af4d59aa8ccd412cdff92711a9990.camel@marvell.com> <915489BC-B2C9-4D47-A205-FC597FC68B98@amacapital.net> In-Reply-To: <915489BC-B2C9-4D47-A205-FC597FC68B98@amacapital.net> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [173.228.7.197] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: a76721a9-0958-463b-db22-08d7e41f96b0 x-ms-traffictypediagnostic: BYAPR18MB2933: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:6790; x-forefront-prvs: 0378F1E47A x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:BYAPR18MB2535.namprd18.prod.outlook.com;PTR:;CAT:NONE;SFTY:;SFS:(10009020)(4636009)(366004)(136003)(396003)(346002)(39850400004)(376002)(316002)(66476007)(26005)(66446008)(64756008)(76116006)(66556008)(66946007)(186003)(478600001)(2616005)(6916009)(7416002)(966005)(54906003)(6506007)(5660300002)(8676002)(6486002)(8936002)(81156014)(71200400001)(6512007)(2906002)(4744005)(4326008)(36756003)(86362001);DIR:OUT;SFP:1101; received-spf: None (protection.outlook.com: marvell.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 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 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-Network-Message-Id: a76721a9-0958-463b-db22-08d7e41f96b0 X-MS-Exchange-CrossTenant-originalarrivaltime: 19 Apr 2020 05:07:41.8407 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 70e1fb47-1155-421d-87fc-2e58f638b6e0 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: MfbkLB4IQWWoIfrbGP9p9M9GYlXjMGkWZ7tLbQ7fl75JGvjUefZs/cOaR+R6jyReTTyF2iaoDZpHIB7GfDqIzA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR18MB2933 X-OriginatorOrg: marvell.com X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.676 definitions=2020-04-18_10:2020-04-17,2020-04-18 signatures=0 Sender: linux-api-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-api@vger.kernel.org DQpPbiBUaHUsIDIwMjAtMDQtMDkgYXQgMTE6MDAgLTA3MDAsIEFuZHkgTHV0b21pcnNraSB3cm90 ZToNCj4gDQo+ID4gDQo+ID4gT25jZSB0aGUgdGFzayBoYXMgcmV0dXJuZWQgdG8gdXNlcnNwYWNl IGFmdGVyIGlzc3VpbmcgdGhlIHByY3RsKCksDQo+ID4gaWYgaXQgZW50ZXJzIHRoZSBrZXJuZWwg YWdhaW4gdmlhIHN5c3RlbSBjYWxsLCBwYWdlIGZhdWx0LCBvciBhbnkNCj4gPiBvdGhlciBleGNl cHRpb24gb3IgaXJxLCB0aGUga2VybmVsIHdpbGwga2lsbCBpdCB3aXRoIFNJR0tJTEwuDQo+IA0K PiBJIGNvdWxkIGVhc2lseSBpbWFnaW5lIG15c2VsZiB1c2luZyB0YXNrIGlzb2xhdGlvbiwgYnV0 IG5vdCB3aXRoIHRoZQ0KPiBTSUdLSUxMIHNlbWFudGljcy4gU0lHS0lMTCBjYXVzZXMgZGF0YSBs b3NzLiBQbGVhc2UgYXQgbGVhc3QgbGV0DQo+IHVzZXJzIGNob29zZSB3aGF0IHNpZ25hbCB0byBz ZW5kLg0KDQpUaGlzIGlzIGFscmVhZHkgZG9uZSwgZXZlbiB0aG91Z2ggdGhlIGRvY3VtZW50YXRp b24gaXMgbm90IHVwZGF0ZWQuDQpUaGVyZSBpcyBldmVuIGEgdXNlcnNwYWNlIGxpYnJhcnkgdGhh dCBkZWFscyB3aXRoIHRoaXMgd2hpbGUNCmNvbXBlbnNhdGluZyBmb3IgcG9zc2libGUgcmFjZSBj b25kaXRpb25zIG9uIGlzb2xhdGlvbiBlbnRyeSBhbmQNCmF1dG9tYXRpYyByZS1lbnRyeSBhZnRl ciBpc29sYXRpb24gaXMgYnJva2VuOiANCmh0dHBzOi8vZ2l0aHViLmNvbS9hYmVsaXRzL2xpYnRt Yw0KDQotLSANCkFsZXgNCg==