Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753550AbeAJSrM (ORCPT + 1 other); Wed, 10 Jan 2018 13:47:12 -0500 Received: from mga05.intel.com ([192.55.52.43]:32167 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753238AbeAJSrL (ORCPT ); Wed, 10 Jan 2018 13:47:11 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.46,341,1511856000"; d="scan'208";a="193808861" From: "Van De Ven, Arjan" To: Peter Zijlstra , Tim Chen CC: Thomas Gleixner , Andy Lutomirski , Linus Torvalds , Greg KH , "Hansen, Dave" , Andrea Arcangeli , Andi Kleen , David Woodhouse , "Williams, Dan J" , Paolo Bonzini , "Raj, Ashok" , "linux-kernel@vger.kernel.org" Subject: RE: [PATCH v3 3/5] x86/enter: Use IBRS on syscall and interrupts Thread-Topic: [PATCH v3 3/5] x86/enter: Use IBRS on syscall and interrupts Thread-Index: AQHTib1fQtcVoQQhBUyeY+QTiXFYZaNtZ5GAgACJSgCAAAOFAP//fn7A Date: Wed, 10 Jan 2018 18:47:08 +0000 Message-ID: <0575AF4FD06DD142AD198903C74E1CC87A572A2C@ORSMSX103.amr.corp.intel.com> References: <20180110100457.GA29822@worktop.programming.kicks-ass.net> <26d015ef-c5d4-b529-5c81-97115ec02f48@linux.intel.com> <20180110182856.GQ6176@hirez.programming.kicks-ass.net> In-Reply-To: <20180110182856.GQ6176@hirez.programming.kicks-ass.net> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-product: dlpe-windows dlp-version: 11.0.0.116 dlp-reaction: no-action x-originating-ip: [10.22.254.139] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Return-Path: PiBPbiBTS0wrIHJldHBvbGluZSBpcyBtb3N0bHkgdGhlcmUsIGJ1dCBoYXMgYSBmZXcgZGlua3kg aG9sZXMgaW4gYW5kIGl0DQo+IF9taWdodF8gbWFrZSBzZW5zZSB0byB1c2UgSUJSUy4NCj4gDQo+ IEJ1dCBJIGZlZWwgaXQgbmVlZHMgZXhwbGFpbmluZyB3aGF0IHRoZSBleGFjdCBob2xlcyBhcmUg KHBqdCBhbmQgZHdtdzINCj4gaGFkIGEgZmFpciBlbnVtZXJhdGlvbiBJSVJDKSBzdWNoIHRoYXQg cGVvcGxlIGNhbiBqdWRnZSB0aGUgcmlzay4NCg0KeW91IGFyZSBjb3JyZWN0IHRvIG5lZWQgYW5k IHdhbnQgdGhpcy4NCg0KdGhlIHByb2JsZW0gaXMgb25lIG9mIHBhdGNoIHNlcXVlbmNpbmcgYSBi aXQ7DQoNCmFzIHJldHBvbGluZSBpcyBub3cgaXQgaGFzIG1vcmUgb2YgdGhlc2UgZGlua3kgaG9s ZXMsIGluIHRoZSBuZXh0IGZldyBkYXlzDQpwYXRjaGVzIHdpbGwgZmxvdyB0aGF0IHdpbGwgZml4 IGEgYnVuY2ggb2YgdGhlc2UuDQoNCkkgd291bGQgbGlrZSB0byBzdWdnZXN0IHdlIGRvIHRoZSBk b2N1bWVudGF0aW9uIHBhcnQgYWZ0ZXIgYSBmZXcgZGF5cyBvbmNlIA0Kd2Uga25vdyBob3cgbXVj aCBvZiB0aGVzZSB3ZSBjYW4gcmVhc29uYWJsZSBwcmUtcGx1Zy4NCg0KYnV0IHllcyB3ZSBtdXN0 IGRvIHRoaXMgdHJhZGVvZmYgZG9jdW1lbnRhdGlvbi4NCg0K