Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7F9E7C433EF for ; Fri, 7 Jan 2022 22:27:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231187AbiAGW1V (ORCPT ); Fri, 7 Jan 2022 17:27:21 -0500 Received: from eu-smtp-delivery-151.mimecast.com ([185.58.86.151]:48847 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230394AbiAGW1U (ORCPT ); Fri, 7 Jan 2022 17:27:20 -0500 Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id uk-mta-219-GzmGcsiPPsqXIUsDuFKxjQ-1; Fri, 07 Jan 2022 22:27:18 +0000 X-MC-Unique: GzmGcsiPPsqXIUsDuFKxjQ-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 15.0.1497.26; Fri, 7 Jan 2022 22:27:17 +0000 Received: from AcuMS.Aculab.com ([fe80::994c:f5c2:35d6:9b65]) by AcuMS.aculab.com ([fe80::994c:f5c2:35d6:9b65%12]) with mapi id 15.00.1497.026; Fri, 7 Jan 2022 22:27:17 +0000 From: David Laight To: 'Mathieu Desnoyers' , Florian Weimer CC: Peter Zijlstra , linux-kernel , Thomas Gleixner , paulmck , Boqun Feng , "H. Peter Anvin" , Paul Turner , linux-api , Christian Brauner , carlos Subject: RE: [RFC PATCH] rseq: x86: implement abort-at-ip extension Thread-Topic: [RFC PATCH] rseq: x86: implement abort-at-ip extension Thread-Index: AdgEFboSAErst/O1Thaz4M9J8smUeQ== Date: Fri, 7 Jan 2022 22:27:17 +0000 Message-ID: <701ff3888b3f42f4a6a1dded84b79078@AcuMS.aculab.com> References: <20220107170302.8325-1-mathieu.desnoyers@efficios.com> <87a6g7ny0j.fsf@mid.deneb.enyo.de> <1968088162.13310.1641584935813.JavaMail.zimbra@efficios.com> <1300078200.13848.1641590867024.JavaMail.zimbra@efficios.com> In-Reply-To: <1300078200.13848.1641590867024.JavaMail.zimbra@efficios.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: linux-kernel@vger.kernel.org PiBUaGF0IGJlaW5nIHNhaWQsIHRoZXJlIG1pZ2h0IGJlIGFuIGFyY2hpdGVjdHVyZSBhZ25vc3Rp YyBhbHRlcm5hdGl2ZSBhdmFpbGFibGUuDQo+IE9uIGFib3J0IG9mIGEgUlNFUV9DU19GTEFHX0FC T1JUX0FUX0lQIGNyaXRpY2FsIHNlY3Rpb24sIHdlIGNvdWxkIGxldCB0aGUga2VybmVsDQo+IGRl Y3JlbWVudC9pbmNyZW1lbnQgdGhlIHN0YWNrIHBvaW50ZXIgdG8gbWFrZSByb29tIGZvciBhIHBv aW50ZXIgKGRlcGVuZGluZyBpZiB0aGUNCj4gc3RhY2sgZ3Jvd3MgZG93biBvciB1cCkuIEl0IHdv dWxkIHRoZW4gc3RvcmUgdGhlIGFib3J0LWF0LWlwIHZhbHVlIGF0IHRoZSB0b3Agb2YNCj4gc3Rh Y2suDQoNClN0YWNrIHJlZHpvbmUgaW4gYSBsZWFmIGZ1bmN0aW9uPw0KDQotDQpSZWdpc3RlcmVk IEFkZHJlc3MgTGFrZXNpZGUsIEJyYW1sZXkgUm9hZCwgTW91bnQgRmFybSwgTWlsdG9uIEtleW5l cywgTUsxIDFQVCwgVUsNClJlZ2lzdHJhdGlvbiBObzogMTM5NzM4NiAoV2FsZXMpDQo=