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 085BBC5519F for ; Wed, 18 Nov 2020 09:30:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B575921D7E for ; Wed, 18 Nov 2020 09:30:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726791AbgKRJaI (ORCPT ); Wed, 18 Nov 2020 04:30:08 -0500 Received: from eu-smtp-delivery-151.mimecast.com ([185.58.86.151]:38820 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725772AbgKRJaI (ORCPT ); Wed, 18 Nov 2020 04:30:08 -0500 Received: from AcuMS.aculab.com (156.67.243.126 [156.67.243.126]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-9-KSofn2n5Plu9KHYZHoEQkw-1; Wed, 18 Nov 2020 09:30:02 +0000 X-MC-Unique: KSofn2n5Plu9KHYZHoEQkw-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) by AcuMS.aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Wed, 18 Nov 2020 09:30:01 +0000 Received: from AcuMS.Aculab.com ([fe80::43c:695e:880f:8750]) by AcuMS.aculab.com ([fe80::43c:695e:880f:8750%12]) with mapi id 15.00.1347.000; Wed, 18 Nov 2020 09:30:01 +0000 From: David Laight To: 'Alexandre Chartre' , Borislav Petkov CC: "tglx@linutronix.de" , "mingo@redhat.com" , "hpa@zytor.com" , "x86@kernel.org" , "dave.hansen@linux.intel.com" , "luto@kernel.org" , "peterz@infradead.org" , "linux-kernel@vger.kernel.org" , "thomas.lendacky@amd.com" , "jroedel@suse.de" , "konrad.wilk@oracle.com" , "jan.setjeeilers@oracle.com" , "junaids@google.com" , "oweisse@google.com" , "rppt@linux.vnet.ibm.com" , "graf@amazon.de" , "mgross@linux.intel.com" , "kuzuno@gmail.com" Subject: RE: [RFC][PATCH v2 00/21] x86/pti: Defer CR3 switch to C code Thread-Topic: [RFC][PATCH v2 00/21] x86/pti: Defer CR3 switch to C code Thread-Index: AQHWvX4bZBmKPgi/bUuugBhHF1Bzu6nNnuFA Date: Wed, 18 Nov 2020 09:30:01 +0000 Message-ID: References: <20201116144757.1920077-1-alexandre.chartre@oracle.com> <20201116201711.GE1131@zn.tnic> <44a88648-738a-4a4b-9c25-6b70000e037c@oracle.com> <20201117165539.GG5719@zn.tnic> <890f6b7e-a268-2257-edcb-5eacc7db3d8e@oracle.com> <20201117212608.GS5719@zn.tnic> In-Reply-To: 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 RnJvbTogQWxleGFuZHJlIENoYXJ0cmUNCj4gU2VudDogMTggTm92ZW1iZXIgMjAyMCAwNzo0Mg0K PiANCj4gDQo+IE9uIDExLzE3LzIwIDEwOjI2IFBNLCBCb3Jpc2xhdiBQZXRrb3Ygd3JvdGU6DQo+ ID4gT24gVHVlLCBOb3YgMTcsIDIwMjAgYXQgMDc6MTI6MDdQTSArMDEwMCwgQWxleGFuZHJlIENo YXJ0cmUgd3JvdGU6DQo+ID4+IFNvbWUgYmVuY2htYXJrcyBhcmUgYXZhaWxhYmxlLCBpbiBwYXJ0 aWN1bGFyIGZyb20gcGhvcm9uaXg6DQo+ID4NCj4gPiBXaGF0IEkgd2FzIGV4cGVjdGluZyB3YXMg YmVuY2htYXJrcyAqeW91KiBoYXZlIHJ1biB3aGljaCBzaG93IHRoYXQNCj4gPiBwZXJmIHBlbmFs dHksIG5vdCBzb21ldGhpbmcgb25lIGNhbiBmaW5kIHF1aWNrbHkgb24gdGhlIGludGVybmV0IGFu ZA0KPiA+IHNvbWV0aGluZyBvbmUgY2Fubm90IGFsd2F5cyByZXByb2R1Y2UgaGVyLS9oaW1zZWxm Lg0KPiA+DQo+ID4gWW91IGRvIGtub3cgdGhhdCBwcmVzZW50aW5nIGNvbnZpbmNpbmcgbnVtYmVy cyB3aXRoIGEgcGF0Y2hzZXQgZ3JlYXRseQ0KPiA+IGltcHJvdmVzIGl0cyBjaGFuY2VzIG9mIGdl dHRpbmcgaXQgdXBzdHJlYW1lZCwgcmlnaHQ/DQo+ID4NCj4gDQo+IFdlbGwsIGl0IGxvb2tzIGxp a2UgSSB3cm9uZ2Z1bGx5IGFzc3VtZSB0aGF0IEtQVEkgd2FzIGEgd2VsbCBrbm93biBwZXJmb3Jt YW5jZQ0KPiBvdmVyaGVhZCBzaW5jZSBpdCB3YXMgaW50cm9kdWNlZCAoYmVjYXVzZSBpdCBhZGRz IGV4dHJhIHBhZ2UtdGFibGUgc3dpdGNoZXMpLA0KPiBidXQgeW91IGFyZSByaWdodCBJIHNob3Vs ZCBiZSBwcmVzZW50aW5nIG15IG93biBudW1iZXJzLg0KDQpJSVJDIHRoZSBwZW5hbHR5IGNvbWVz IGZyb20gdGhlIHBhZ2UgdGFibGUgc3dpdGNoLg0KRG9pbmcgaXQgYXQgYSBkaWZmZXJlbnQgdGlt ZSBpcyB1bmxpa2VseSB0byBtYWtlIG11Y2ggZGlmZmVyZW5jZS4NCg0KRm9yIHNvbWUgd29ya2xv YWRzIHRoZSBwZW5hbHR5IGlzIG1hc3NpdmUgLSBnZXR0aW5nIG9uIGZvciA1MCUuDQpXZSBhcmUg c3RpbGwgdXNpbmcgb2xkIGtlcm5lbHMgb24gQVdTLg0KDQoJRGF2aWQNCg0KLQ0KUmVnaXN0ZXJl ZCBBZGRyZXNzIExha2VzaWRlLCBCcmFtbGV5IFJvYWQsIE1vdW50IEZhcm0sIE1pbHRvbiBLZXlu ZXMsIE1LMSAxUFQsIFVLDQpSZWdpc3RyYXRpb24gTm86IDEzOTczODYgKFdhbGVzKQ0K