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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED 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 AE3C4C46475 for ; Thu, 25 Oct 2018 23:03:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6E234207DD for ; Thu, 25 Oct 2018 23:03:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6E234207DD Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727593AbeJZHiK (ORCPT ); Fri, 26 Oct 2018 03:38:10 -0400 Received: from mga01.intel.com ([192.55.52.88]:31300 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726863AbeJZHiJ (ORCPT ); Fri, 26 Oct 2018 03:38:09 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 25 Oct 2018 16:03:35 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,425,1534834800"; d="scan'208";a="98762463" Received: from fmsmsx107.amr.corp.intel.com ([10.18.124.205]) by fmsmga002.fm.intel.com with ESMTP; 25 Oct 2018 16:03:35 -0700 Received: from fmsmsx154.amr.corp.intel.com (10.18.116.70) by fmsmsx107.amr.corp.intel.com (10.18.124.205) with Microsoft SMTP Server (TLS) id 14.3.319.2; Thu, 25 Oct 2018 16:03:35 -0700 Received: from crsmsx102.amr.corp.intel.com (172.18.63.137) by FMSMSX154.amr.corp.intel.com (10.18.116.70) with Microsoft SMTP Server (TLS) id 14.3.319.2; Thu, 25 Oct 2018 16:03:34 -0700 Received: from crsmsx101.amr.corp.intel.com ([169.254.1.85]) by CRSMSX102.amr.corp.intel.com ([169.254.2.244]) with mapi id 14.03.0415.000; Thu, 25 Oct 2018 17:03:32 -0600 From: "Bae, Chang Seok" To: Andy Lutomirski CC: Boris Ostrovsky , Juergen Gross , xen-devel , Ingo Molnar , Thomas Gleixner , "H. Peter Anvin" , Andi Kleen , Dave Hansen , "Metzger, Markus T" , "Shankar, Ravi V" , LKML Subject: Re: [v3 04/12] x86/fsgsbase/64: Enable FSGSBASE instructions in the helper functions Thread-Topic: [v3 04/12] x86/fsgsbase/64: Enable FSGSBASE instructions in the helper functions Thread-Index: AQHUawBO9chRqp+c5EKJrUo1DG8ZGaUvKsMAgADNk4CAAQNRgIAAANKA Date: Thu, 25 Oct 2018 23:03:31 +0000 Message-ID: <6CD573FD-3B38-45B1-9DC6-B5F0E9087FB4@intel.com> References: <20181023184234.14025-1-chang.seok.bae@intel.com> <20181023184234.14025-5-chang.seok.bae@intel.com> <1EE75BE7-12C6-4BD9-9D31-E9C396D2015B@intel.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.144.152.7] Content-Type: text/plain; charset="utf-8" Content-ID: <31D47EBD5DD6A34F9903BC9DAD28C9F5@intel.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org DQoNCj4gT24gT2N0IDI1LCAyMDE4LCBhdCAxNjowMCwgQW5keSBMdXRvbWlyc2tpIDxsdXRvQGtl cm5lbC5vcmc+IHdyb3RlOg0KPiANCj4gT24gVGh1LCBPY3QgMjUsIDIwMTggYXQgMTI6MzIgQU0g QmFlLCBDaGFuZyBTZW9rDQo+IDxjaGFuZy5zZW9rLmJhZUBpbnRlbC5jb20+IHdyb3RlOg0KPj4g DQo+PiANCj4+PiBPbiBPY3QgMjQsIDIwMTgsIGF0IDEyOjE2LCBBbmR5IEx1dG9taXJza2kgPGx1 dG9Aa2VybmVsLm9yZz4gd3JvdGU6DQo+Pj4gDQo+Pj4gT24gVHVlLCBPY3QgMjMsIDIwMTggYXQg MTE6NDMgQU0gQ2hhbmcgUy4gQmFlIDxjaGFuZy5zZW9rLmJhZUBpbnRlbC5jb20+IHdyb3RlOg0K Pj4+PiB2b2lkIHg4Nl9mc2Jhc2Vfd3JpdGVfY3B1KHVuc2lnbmVkIGxvbmcgZnNiYXNlKQ0KPj4+ PiB7DQo+Pj4+IC0gICAgICAgLyoNCj4+Pj4gLSAgICAgICAgKiBTZXQgdGhlIHNlbGVjdG9yIHRv IDAgYXMgYSBub3Rpb24sIHRoYXQgdGhlIHNlZ21lbnQgYmFzZSBpcw0KPj4+PiAtICAgICAgICAq IG92ZXJ3cml0dGVuLCB3aGljaCB3aWxsIGJlIGNoZWNrZWQgZm9yIHNraXBwaW5nIHRoZSBzZWdt ZW50IGxvYWQNCj4+Pj4gLSAgICAgICAgKiBkdXJpbmcgY29udGV4dCBzd2l0Y2guDQo+Pj4+IC0g ICAgICAgICovDQo+Pj4+IC0gICAgICAgbG9hZHNlZyhGUywgMCk7DQo+Pj4+IC0gICAgICAgd3Jt c3JsKE1TUl9GU19CQVNFLCBmc2Jhc2UpOw0KPj4+PiArICAgICAgIGlmIChzdGF0aWNfY3B1X2hh cyhYODZfRkVBVFVSRV9GU0dTQkFTRSkpIHsNCj4+Pj4gKyAgICAgICAgICAgICAgIHdyZnNiYXNl KGZzYmFzZSk7DQo+Pj4+ICsgICAgICAgfSBlbHNlIHsNCj4+Pj4gKyAgICAgICAgICAgICAgIC8q DQo+Pj4+ICsgICAgICAgICAgICAgICAgKiBTZXQgdGhlIHNlbGVjdG9yIHRvIDAgYXMgYSBub3Rp b24sIHRoYXQgdGhlIHNlZ21lbnQgYmFzZSBpcw0KPj4+PiArICAgICAgICAgICAgICAgICogb3Zl cndyaXR0ZW4sIHdoaWNoIHdpbGwgYmUgY2hlY2tlZCBmb3Igc2tpcHBpbmcgdGhlIHNlZ21lbnQg bG9hZA0KPj4+PiArICAgICAgICAgICAgICAgICogZHVyaW5nIGNvbnRleHQgc3dpdGNoLg0KPj4+ PiArICAgICAgICAgICAgICAgICovDQo+Pj4+ICsgICAgICAgICAgICAgICBsb2Fkc2VnKEZTLCAw KTsNCj4+Pj4gKyAgICAgICAgICAgICAgIHdybXNybChNU1JfRlNfQkFTRSwgZnNiYXNlKTsNCj4+ Pj4gKyAgICAgICB9DQo+Pj4+IH0NCj4+Pj4gDQo+Pj4+IHZvaWQgeDg2X2dzYmFzZV93cml0ZV9j cHVfaW5hY3RpdmUodW5zaWduZWQgbG9uZyBnc2Jhc2UpDQo+Pj4+IHsNCj4+Pj4gLSAgICAgICAv KiBTZXQgdGhlIHNlbGVjdG9yIHRvIDAgZm9yIHRoZSBzYW1lIHJlYXNvbiBhcyAlZnMgYWJvdmUu ICovDQo+Pj4+IC0gICAgICAgbG9hZHNlZyhHUywgMCk7DQo+Pj4+IC0gICAgICAgd3Jtc3JsKE1T Ul9LRVJORUxfR1NfQkFTRSwgZ3NiYXNlKTsNCj4+Pj4gKyAgICAgICBpZiAoc3RhdGljX2NwdV9o YXMoWDg2X0ZFQVRVUkVfRlNHU0JBU0UpKSB7DQo+Pj4+ICsgICAgICAgICAgICAgICB3cl9pbmFj dGl2ZV9nc2Jhc2UoZ3NiYXNlKTsNCj4+Pj4gKyAgICAgICB9IGVsc2Ugew0KPj4+PiArICAgICAg ICAgICAgICAgLyogU2V0IHRoZSBzZWxlY3RvciB0byAwIGZvciB0aGUgc2FtZSByZWFzb24gYXMg JWZzIGFib3ZlLiAqLw0KPj4+PiArICAgICAgICAgICAgICAgbG9hZHNlZyhHUywgMCk7DQo+Pj4+ ICsgICAgICAgICAgICAgICB3cm1zcmwoTVNSX0tFUk5FTF9HU19CQVNFLCBnc2Jhc2UpOw0KPj4+ IA0KPj4+IEkgc3RpbGwgZG9uJ3QgZ2V0IHdoYXQgdGhpcyBjb2RlIGlzIHRyeWluZyB0byBkby4g IFNlZSBvdGhlciBlbWFpbC4gIEkNCj4+PiB0aGluayBpdCB3aWxsIHN0cmFpZ2h0IHVwIGNyYXNo IHRoZSBrZXJuZWwgb24gc29tZSBDUFVzLCBzaW5jZSB3cml0aW5nDQo+Pj4gMCB0byAlJWdzIHdp bGwgemVybyBvdXQgdGhlICphY3RpdmUqIGJhc2Ugb24gc29tZSBDUFVzLg0KPj4+IA0KPj4gDQo+ PiBPbiB0aG9zZSBDUFVzLCBob3cgdGhlIG9sZCBkb19hcmNoX3ByY3RsXzY0KCkgd29ya2VkPw0K Pj4gbG9hZHNlZyhHUywgMCkgZXZlbnR1YWxseSBoaXRzIHRoZSBuYXRpdmVfbG9hZF9nc19pbmRl eCBlbnRyeSwgd2hlcmUgYWN0dWFsDQo+PiBtb3Yg4oCmLCAlZ3MgaXMgd3JhcHBlZCBieSB0d28g U1dBUEdTZXMuIFNvLCBpdCB3b27igJl0IGNhdXNlIHRoZSBzaWRlIGVmZmVjdA0KPj4gb2Ygb3Zl cndyaXRpbmcgdGhlICphY3RpdmUqIGJhc2UsIEkgdGhpbmsuDQo+PiANCj4+PiBJIHRoaW5rIHRo YXQsIGlmIHlvdSByZWFsbHkgd2FudCBzb21lIGZhbmN5IG9wdGltaXphdGlvbiBmb3IgdGhlDQo+ Pj4gbm9uLUZTR1NCQVNFIGNhc2UsIHlvdSBuZWVkIHRvIHB1bGwgdGhhdCBvdXQgaW50byB0aGUg Y2FsbGVycyBvZiB0aGVzZQ0KPj4+IGhlbHBlcnMuDQo+PiANCj4gDQo+IEkgd2FzIHRoaW5raW5n IG9mIGxvYWRzZWdtZW50LCBub3QgbG9hZHNlZy4gIFNvcnJ5IQ0KDQpObyBwcm9ibGVtISAgQXBw cmVjaWF0ZSB5b3VyIHJldmlld3MuDQoNCkNoYW5nDQoNCg==