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=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham 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 0520AC4360F for ; Thu, 4 Apr 2019 15:09:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CA89020882 for ; Thu, 4 Apr 2019 15:09:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728992AbfDDPJq (ORCPT ); Thu, 4 Apr 2019 11:09:46 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([207.82.80.151]:23915 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727212AbfDDPJq (ORCPT ); Thu, 4 Apr 2019 11:09:46 -0400 Received: from AcuMS.aculab.com (156.67.243.126 [156.67.243.126]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-16-40f3dLdxNiGOFZQ8W49SUA-1; Thu, 04 Apr 2019 16:09:42 +0100 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; Thu, 4 Apr 2019 16:10:49 +0100 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; Thu, 4 Apr 2019 16:10:49 +0100 From: David Laight To: 'Andy Lutomirski' , Sebastian Andrzej Siewior CC: "linux-kernel@vger.kernel.org" , "x86@kernel.org" , Paolo Bonzini , =?utf-8?B?UmFkaW0gS3LEjW3DocWZ?= , "kvm@vger.kernel.org" , "Jason A. Donenfeld" , Rik van Riel , Dave Hansen Subject: RE: [PATCH v9 00/27] x86: load FPU registers on return to userland Thread-Topic: [PATCH v9 00/27] x86: load FPU registers on return to userland Thread-Index: AQHU6jzQfWf8irPe1UiHuip9snecjKYsB0gwgAAJdsKAAAlSEA== Date: Thu, 4 Apr 2019 15:10:49 +0000 Message-ID: References: <20190403164156.19645-1-bigeasy@linutronix.de> <20190404141409.upfk5z4re3pyvxzn@linutronix.de> In-Reply-To: Accept-Language: en-GB, en-US Content-Language: 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 X-MC-Unique: 40f3dLdxNiGOFZQ8W49SUA-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org RnJvbTogU2ViYXN0aWFuIEFuZHJ6ZWogU2lld2lvcg0KPiBGcm9tOiBBbmR5IEx1dG9taXJza2kg W21haWx0bzpsdXRvQGtlcm5lbC5vcmddDQo+IFNlbnQ6IDA0IEFwcmlsIDIwMTkgMTU6MjcNCj4g DQo+IE9uIFRodSwgQXByIDQsIDIwMTkgYXQgNzoxNCBBTSBTZWJhc3RpYW4gQW5kcnplaiBTaWV3 aW9yDQo+IDxiaWdlYXN5QGxpbnV0cm9uaXguZGU+IHdyb3RlOg0KPiA+DQo+ID4gT24gMjAxOS0w NC0wNCAxNDowMTo0MyBbKzAwMDBdLCBEYXZpZCBMYWlnaHQgd3JvdGU6DQo+ID4gPiBGcm9tOiBT ZWJhc3RpYW4gQW5kcnplaiBTaWV3aW9yDQo+ID4gPiA+IFNlbnQ6IDAzIEFwcmlsIDIwMTkgMTc6 NDENCj4gPiA+IC4uLg0KPiA+ID4gPiBUbyBhY2Nlc3MgdGhlIEZQVSByZWdpc3RlcnMgaW4ga2Vy bmVsIHdlIG5lZWQ6DQo+ID4gPiA+IC0gZGlzYWJsZSBwcmVlbXB0aW9uIHRvIGF2b2lkIHRoYXQg dGhlIHNjaGVkdWxlciBzd2l0Y2hlcyB0YXNrcy4gQnkNCj4gPiA+ID4gICBkb2luZyBzbyBpdCB3 b3VsZCBzZXQgVElGX05FRURfRlBVX0xPQUQgYW5kIHRoZSBGUFUgcmVnaXN0ZXJzIHdvdWxkIGJl DQo+ID4gPiA+ICAgbm90IHZhbGlkLg0KPiA+ID4gPiAtIGRpc2FibGUgQkggYmVjYXVzZSB0aGUg c29mdGlycSBtaWdodCB1c2Uga2VybmVsX2ZwdV9iZWdpbigpIGFuZCB0aGVuDQo+ID4gPiA+ICAg c2V0IFRJRl9ORUVEX0ZQVV9MT0FEIGluc3RlYWQgbG9hZGluZyB0aGUgRlBVIHJlZ2lzdGVycyBv biBjb21wbGV0aW9uLg0KPiA+ID4NCj4gPiA+IElzIHRoZXJlIGEgcG9zc2libGUgb3B0aW1pc2F0 aW9uIGhlcmUgZm9yIGtlcm5lbCB0aHJlYWRzPw0KPiA+ID4gU2luY2UgdGhlcmUgaXMgbm8gJ3Vz ZXIgRlAgc3RhdGUnIHRoZSAna2VybmVsIEZQIHN0YXRlJyBjYW4NCj4gPiA+IGJlIHNhdmVkIGJ5 IGEgdGFzayBzd2l0Y2ggb3Igc29mdGlycS4NCj4gPg0KPiA+IFRoZXJlIGlzIG5vIHN1Y2ggdGhp bmcgYXMgImtlcm5lbCBGUCBzdGF0ZSIgdGhhdCBpcyBzYXZlZC4NCj4gPg0KPiANCj4gSSB0aGlu ayB0aGF0IERhdmlkIHdhcyBhc2tpbmcgd2hldGhlciB3ZSBjb3VsZCBtYWtlIGtlcm5lbF9mcHVf YmVnaW4oKQ0KPiByZWdpb25zIHNvbWV0aW1lcyBiZSBwcmVlbXB0aWJsZS4gIFRoZSBhbnN3ZXIg aXMgcHJlc3VtYWJseSB5ZXMsIGJ1dCBJDQo+IHRoaW5rIHRoYXQgc2hvdWxkIGJlIGEgc2VwYXJh dGUgZWZmb3J0LCBhbmQgaXQgc2hvdWxkIGJlIGp1c3RpZmllZA0KPiB3aXRoIGltcHJvdmVkIHBl cmZvcm1hbmNlIGFib3ZlIGFuZCBiZXlvbmQgd2hhdCB3ZSBnZXQgd2l0aCBKYXNvbidzDQo+IHNp bWRfZ2V0KCkgc3R1ZmYuDQoNClllcC4uLg0KDQotIEFjdHVhbGx5IHRoZXJlIGFyZSBzb21lIGxv b3BzIHRoYXQgcHJvY2VzcyBtb3JlIG9yIGxlc3MgYXJiaXRyYXJ5DQotIGFtb3VudHMgb2YgZGF0 YS4gQnV0IGFsbCBvZiB0aG9zZSBzb21ld2hhdCBtYW51YWxseSBicmVhayB0aGF0IHVwDQotIGlu dG8gcGFnZSBzaXplIGNodW5rcyBiZWZvcmUgY2hlY2tpbmcgaWYgd2UndmUgZGlzYWJsZWQgcHJl ZW1wdGlvbg0KLSBmb3IgdG9vIGxvbmcsIGFuZCB0aGVuIGlmIHNvLCBkbyBhIGVuZCgpYmVnaW4o KSBzZXF1ZW5jZSBiZWZvcmUNCi0gc3RhcnRpbmcgdGhlIG5leHQgY2h1bmsuIE15IHNpbWRfcmVs YXggdGFrZXMgY2FyZSBvZiB0aGF0LCBmb3INCi0gZXhhbXBsZS4gR2l2ZW4gdGhhdCBhIGxvbmcg dGVybSBwdXJwb3NlIG9mIHRoaXMgcGF0Y2hzZXQgaXMgdG8NCi0gb2Jzb2xldGUgdGhlIHNpbWRf Z2V0L3B1dC9yZWxheCBBUEkgSSd2ZSBwcm9wb3NlZCwgaXQgc2VlbXMgbGlrZQ0KLSBpdCBtaWdo dCBiZSBuaWNlIHRvIGFsc28gZG8gYXdheSB3aXRoIHRoZSBtYW51YWwgcmVsYXhhdGlvbg0KLSBy ZXF1aXJlbWVudCwgaWYgdGhhdCdzIHNvbWVob3cgcG9zc2libGUuDQoNClRoZSBhZHZhbnRhZ2Ug b2YgYSAncmVsYXgnIChvciBrZXJuZWxfZnB1X2VuZCgpL2JlZ2luKCkgcGFpcikNCmlzIHRoYXQg dGhlIGtlcm5lbCByZWdpc3RlcnMgbmV2ZXIgbmVlZCBzYXZpbmcuDQpPVE9IIGFsbG93aW5nIGFy Yml0cmFyeSBjb250ZXh0IHN3aXRjaGVzIGlzIChwcm9iYWJseSkgYmV0dGVyDQpmb3IgbGF0ZW5j eS4gDQoNCkFzIHdlbGwgYXMga2VybmVsIHRocmVhZHMgYmVpbmcgYWJsZSB0byB1c2UgdGhlIHRh c2tzICdub3JtYWwnIGZwdQ0Kc2F2ZSBhcmVhLCBpdCBvdWdodCB0byBiZSBwb3NzaWJsZSB0byBw YXNzIGFuICdmcHUgc2F2ZSBhcmVhJw0KdG8ga2VybmVsX2ZwdV9iZWdpbigpIHNvIHRoYXQgYSBu b24ta2VybmVsIHRocmVhZCBjYW4gYmUgcHJlLWVtcHRlZA0Kd2hpbGUgdXNpbmcgdGhlIGZwdS4N Cg0KQWN0dWFsbHkgeW91IGNvdWxkIChwcm9iYWJseSkganVzdCBwYXNzIHRoZSBhZGRyZXNzIG9m IGEgbG9jYXRpb24NCndoZXJlIHRoZSBhZGRyZXNzIG9mIGEga21hbGxvYygpZWQgc2F2ZSBhcmVh IHdvdWxkIGJlIHdyaXR0ZW4NCndlcmUgb25lIG5lZWRlZCBhbmQgYWxsb2NhdGUgdGhlIHN0cnVj dHVyZSB0aGUgZmlyc3QgdGltZSBpdA0KaXMgbmVlZGVkIChhbHRob3VnaCBrbWFsbG9jKCkgaW4g dGhhdCBjb2RlIHBhdGggbWlnaHQgYmUgaGFyZC4pDQoNCglEYXZpZA0KDQotDQpSZWdpc3RlcmVk IEFkZHJlc3MgTGFrZXNpZGUsIEJyYW1sZXkgUm9hZCwgTW91bnQgRmFybSwgTWlsdG9uIEtleW5l cywgTUsxIDFQVCwgVUsNClJlZ2lzdHJhdGlvbiBObzogMTM5NzM4NiAoV2FsZXMpDQo=