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 AC626C433B4 for ; Wed, 12 May 2021 09:31:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 66A3D611BE for ; Wed, 12 May 2021 09:31:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230185AbhELJcf (ORCPT ); Wed, 12 May 2021 05:32:35 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([185.58.86.151]:47608 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230379AbhELJcZ (ORCPT ); Wed, 12 May 2021 05:32:25 -0400 Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-79-oLFw4AwlPEex5jOXqlFBlw-1; Wed, 12 May 2021 10:31:12 +0100 X-MC-Unique: oLFw4AwlPEex5jOXqlFBlw-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:994c:f5c2:35d6:9b65) by AcuMS.aculab.com (fd9f:af1c:a25b:0:994c:f5c2:35d6:9b65) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 12 May 2021 10:31:10 +0100 Received: from AcuMS.Aculab.com ([fe80::994c:f5c2:35d6:9b65]) by AcuMS.aculab.com ([fe80::994c:f5c2:35d6:9b65%12]) with mapi id 15.00.1497.015; Wed, 12 May 2021 10:31:10 +0100 From: David Laight To: 'Juergen Gross' , 'Joerg Roedel' CC: "x86@kernel.org" , Hyunwook Baek , Joerg Roedel , "stable@vger.kernel.org" , "hpa@zytor.com" , Andy Lutomirski , Dave Hansen , Peter Zijlstra , Jiri Slaby , Dan Williams , Tom Lendacky , Kees Cook , David Rientjes , Cfir Cohen , Erdem Aktas , Masami Hiramatsu , Mike Stunes , Sean Christopherson , Martin Radev , Arvind Sankar , "linux-coco@lists.linux.dev" , "linux-kernel@vger.kernel.org" , "kvm@vger.kernel.org" , "virtualization@lists.linux-foundation.org" Subject: RE: [PATCH 3/6] x86/sev-es: Use __put_user()/__get_user Thread-Topic: [PATCH 3/6] x86/sev-es: Use __put_user()/__get_user Thread-Index: AQHXRwQswpicLJM6a0eoGXhfP+3kQqrfe29ggAAQd36AAAai8A== Date: Wed, 12 May 2021 09:31:10 +0000 Message-ID: <8cdbb6928c7144c6b065c3ff68f03aee@AcuMS.aculab.com> References: <20210512075445.18935-1-joro@8bytes.org> <20210512075445.18935-4-joro@8bytes.org> <0496626f018d4d27a8034a4822170222@AcuMS.aculab.com> <92244e37-4443-98bd-24aa-bf59548aab47@suse.com> In-Reply-To: <92244e37-4443-98bd-24aa-bf59548aab47@suse.com> Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=C51A453 smtp.mailfrom=david.laight@aculab.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org RnJvbTogSnVlcmdlbiBHcm9zcw0KPiBTZW50OiAxMiBNYXkgMjAyMSAwOTo1OA0KPiANCj4gT24g MTIuMDUuMjEgMTA6NTAsICdKb2VyZyBSb2VkZWwnIHdyb3RlOg0KPiA+IE9uIFdlZCwgTWF5IDEy LCAyMDIxIGF0IDEwOjE2OjEyQU0gKzAyMDAsIEp1ZXJnZW4gR3Jvc3Mgd3JvdGU6DQo+ID4+IFlv dSB3YW50IHNvbWV0aGluZyBsaWtlIHhlbl9zYWZlX1tyZWFkfHdyaXRlXV91bG9uZygpLg0KPiA+ DQo+ID4gIEZyb20gYSBmaXJzdCBnbGFuY2UgSSBjYW4ndCBzZWUgaXQsIHdoYXQgaXMgdGhlIGRp ZmZlcmVuY2UgYmV0d2VlbiB0aGUNCj4gPiB4ZW5fc2FmZV8qX3Vsb25nKCkgZnVuY3Rpb25zIGFu ZCBfX2dldF91c2VyKCkvX19wdXRfdXNlcigpPyBUaGUgb25seQ0KPiA+IGRpZmZlcmVuY2UgSSBj YW4gc2VlIGlzIHRoYXQgX19nZXQvX19wdXRfdXNlcigpIHN1cHBvcnQgZGlmZmVyZW50IGFjY2Vz cw0KPiA+IHNpemVzLCBidXQgbmVpdGhlciBvZiB0aG9zZSBkaXNhYmxlcyBwYWdlLWZhdWx0cyBi eSBpdHNlbGYsIGZvciBleGFtcGxlLg0KPiA+DQo+ID4gQ291bGRuJ3QgdGhlc2UgeGVuLXNwZWNp ZmljIGZ1bmN0aW9ucyBub3QgYWxzbyBiZSByZXBsYWNlcyBieQ0KPiA+IF9fZ2V0X3VzZXIoKS9f X3B1dF91c2VyKCk/DQo+IA0KPiBObywgdGhvc2Ugd2VyZSB1c2VkIGJlZm9yZSwgYnV0IGNvbW1p dCA5ZGEzZjJiNzQwNTQ0MCBicm9rZSBYZW4ncyB1c2UNCj4gY2FzZS4gVGhhdCBpcyB3aHkgSSBk aWQgY29tbWl0IDE0NTdkOGNmNzY2NGYuDQoNCkkndmUganVzdCBsb29rZWQgYXQgOWRhM2YyYjc0 MDU0NDAuDQoNCkl0IGRvZXNuJ3QgbG9vayByaWdodCB0byBtZSAtIHdyb25nIHJldHVybiB2YWx1 ZSBmb3IgYSBsb3Qgb2YgY2FzZXMuDQpPVE9IIGl0IGlzbid0IGluIG15IG5ld2VzdCB0cmVlIGF0 IGFsbC4NCg0KSWYgYm9ndXNfdWFjY2VzcygpIGlzIG5vdyBlbHNld2hlcmUgSSBjYW4ndCBzZWUg aG93ICh3aXRob3V0IGNoYW5nZXMpDQppdCB3b3VsZCBhbGxvdyB0aHJvdWdoIHRoZXNlIGZhdWx0 cy4NCg0KCURhdmlkDQoNCi0NClJlZ2lzdGVyZWQgQWRkcmVzcyBMYWtlc2lkZSwgQnJhbWxleSBS b2FkLCBNb3VudCBGYXJtLCBNaWx0b24gS2V5bmVzLCBNSzEgMVBULCBVSw0KUmVnaXN0cmF0aW9u IE5vOiAxMzk3Mzg2IChXYWxlcykNCg==