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=-0.9 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 0897AC67839 for ; Fri, 14 Dec 2018 13:39:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B687820675 for ; Fri, 14 Dec 2018 13:39:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729967AbeLNNjY (ORCPT ); Fri, 14 Dec 2018 08:39:24 -0500 Received: from eu-smtp-delivery-151.mimecast.com ([207.82.80.151]:32232 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728881AbeLNNjW (ORCPT ); Fri, 14 Dec 2018 08:39:22 -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-4-5MAOICzyOhqJ1pr0r7imnw-1; Fri, 14 Dec 2018 13:39:18 +0000 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b::d117) by AcuMS.aculab.com (fd9f:af1c:a25b::d117) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Fri, 14 Dec 2018 13:39:30 +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; Fri, 14 Dec 2018 13:39:30 +0000 From: David Laight To: 'Borislav Petkov' , Andy Lutomirski CC: Tom Lendacky , LKML , X86 ML , "H. Peter Anvin" , Josh Poimboeuf , Peter Zijlstra , John Stultz Subject: RE: [RFC PATCH 4/4] x86/TSC: Use RDTSCP Thread-Topic: [RFC PATCH 4/4] x86/TSC: Use RDTSCP Thread-Index: AQHUkkrWNSwtnyiO9kCe7sX2n/ihoKV+PuKQ Date: Fri, 14 Dec 2018 13:39:30 +0000 Message-ID: References: <20181211222326.14581-1-bp@alien8.de> <20181211222326.14581-5-bp@alien8.de> <59aad362-4a5b-dd8b-642f-0dc3f83cf7ee@amd.com> <20181211233901.GV27375@zn.tnic> <20181212100814.GB6653@zn.tnic> <20181212184459.GE6653@zn.tnic> In-Reply-To: <20181212184459.GE6653@zn.tnic> 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: 5MAOICzyOhqJ1pr0r7imnw-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 RnJvbTogIEJvcmlzbGF2IFBldGtvdg0KPiBTZW50OiAxMiBEZWNlbWJlciAyMDE4IDE4OjQ1DQou Li4NCj4gPiBUaGUgcHJvcGVydHkgSSB3YW50IGZvciBSRFRTQyBvcmRlcmluZyBpcyBtdWNoIHdl YWtlcjogSSB3YW50IGl0IHRvIGJlDQo+ID4gb3JkZXJlZCBsaWtlIGEgbG9hZC4gIEltYWdpbmUg dGhhdCwgaW5zdGVhZCBvZiBhbiBvbi1jaGlwIFRTQywgdGhlIFRTQw0KPiA+IGlzIGxpdGVyYWxs eSBhIGxvY2F0aW9uIGluIG1haW4gbWVtb3J5IHRoYXQgZ2V0cyBpbmNyZW1lbnRlZCBieSBhbg0K PiA+IGV4dHJhIGRlZGljYXRlZCBDUFUgZXZlcnkgbmFub3NlY29uZCBvciBzby4gIEkgd2FudCB1 c2VycyBvZiBSRFRTQyB0bw0KPiA+IHdvcmsgYXMgaWYgdGhleSB3ZXJlIHJlYWRpbmcgc3VjaCBh IGxvY2F0aW9uIGluIG1lbW9yeSB1c2luZyBhbg0KPiA+IG9yZGluYXJ5IGxvYWQuICBJIGJlbGll dmUgdGhpcyBnaXZlcyB0aGUgcmVhbCBkZXNpcmVkIHByb3BlcnR5IHRoYXQgaXQNCj4gPiBzaG91 bGQgYmUgaW1wb3NzaWJsZSB0byBvYnNlcnZlIHRoZSBUU0MgZ29pbmcgYmFja3dhcmRzLiAgVGhp cyBpcyBhDQo+ID4gbXVjaCB3ZWFrZXIgZm9ybSBvZiBzZXJpYWxpemF0aW9uLg0KPiANCj4gV2Vs bCwgaW4gdGhhdCBjYXNlIHlvdSBuZWVkIHNvbWV0aGluZyBuZXcuDQo+IA0KPiBCZWNhdXNlLCB0 aGUgbW9tZW50IHlvdSBoYXZlIGEgUkRUU0MgaW4gZmxpZ2h0IGFuZCBhIHNlY29uZCBSRFRTQyBj b21lcw0KPiBpbiBhbmQgdGhhdCBzZWNvbmQgUkRUU0MgbXVzdCAqbm90KiBieXBhc3MgdGhlIGZp cnN0IG9uZSBhbmQgZXhlY3V0ZQ0KPiBlYXJsaWVyIGR1ZSB0byBPb08sIHlvdSBuZWVkIHRvIGlt cG9zZSBzb21lIG9yZGVyaW5nLiBBbmQgdGhhdCdzIHByZXR0eQ0KPiBtdWNoIHVhcmNoLWRlcGVu ZGVudCwgSSdkIHNheS4NCj4gDQo+IEFuZCBJIGd1ZXNzIG9uIEFNRCB0aGUgd2F5IHRvIGRvIHRo YXQgaXMgdG8gc3RvcCBkaXNwYXRjaCB1bnRpbCB0aGUNCj4gZmlyc3QgUkRUU0MgcmV0aXJlcy4N Cj4gDQo+IENhbiBpdCBiZSBkb25lIGZhc3Rlcj8gU3VyZS4gQW5kIEknbSBwcmV0dHkgc3VyZSB0 aGVyZSdzIGEgbG90IG9mIHBlc2t5DQo+IGxpdHRsZSBodyBkZXRhaWxzIHdlJ3JlIG5vdCBldmVu IGhlYXJpbmcgb2YsIHdoaWNoIGdldCBpbiB0aGUgd2F5Lg0KDQpJU1RSIG9uZSBvZiB0aGUgcHJv YmxlbXMgd2l0aCBSRFRTQyBzZXJpYWxpc2luZyBpcyB0aGF0IGl0IGlzIHVzZWQNCmZvciBtaWNy by1iZW5jaG1hcmtzLg0KU28geW91IHdhbnQgdG8gdGltZSBhbGwgdGhlIGluc3RydWN0aW9ucyBi ZXR3ZWVuIGEgcGFpciBvZiBSRFRTQy4NClRoaXMgZG9lc24ndCB3b3JrIHdlbGwgaWYgUkRUU0Mg ZG9lc24ndCB3YWl0IGZvciBhbGwgaW5zdHJ1Y3Rpb25zDQp0byBoYXZlIGV4ZWN1dGVkLg0KVGhl IHNlcmlhbGlzYXRpb24gcmVxdWlyZW1lbnRzIGZvciBzcGVjdHJlIG1pdGlnYXRpb24gYXJlIGRp ZmZlcmVudC4NCg0KCURhdmlkDQoNCi0NClJlZ2lzdGVyZWQgQWRkcmVzcyBMYWtlc2lkZSwgQnJh bWxleSBSb2FkLCBNb3VudCBGYXJtLCBNaWx0b24gS2V5bmVzLCBNSzEgMVBULCBVSw0KUmVnaXN0 cmF0aW9uIE5vOiAxMzk3Mzg2IChXYWxlcykNCg==