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,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 7879CC43381 for ; Tue, 26 Mar 2019 04:53:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4078020828 for ; Tue, 26 Mar 2019 04:53:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726537AbfCZExj (ORCPT ); Tue, 26 Mar 2019 00:53:39 -0400 Received: from mga05.intel.com ([192.55.52.43]:11430 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725535AbfCZExj (ORCPT ); Tue, 26 Mar 2019 00:53:39 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 25 Mar 2019 21:53:38 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,271,1549958400"; d="scan'208";a="158406275" Received: from orsmsx105.amr.corp.intel.com ([10.22.225.132]) by fmsmga001.fm.intel.com with ESMTP; 25 Mar 2019 21:53:38 -0700 Received: from orsmsx154.amr.corp.intel.com (10.22.226.12) by ORSMSX105.amr.corp.intel.com (10.22.225.132) with Microsoft SMTP Server (TLS) id 14.3.408.0; Mon, 25 Mar 2019 21:53:37 -0700 Received: from orsmsx116.amr.corp.intel.com ([169.254.7.78]) by ORSMSX154.amr.corp.intel.com ([169.254.11.183]) with mapi id 14.03.0415.000; Mon, 25 Mar 2019 21:53:37 -0700 From: "Xing, Cedric" To: Andy Lutomirski , "Christopherson, Sean J" CC: Jarkko Sakkinen , "linux-kernel@vger.kernel.org" , "x86@kernel.org" , "linux-sgx@vger.kernel.org" , "akpm@linux-foundation.org" , "Hansen, Dave" , "nhorman@redhat.com" , "npmccallum@redhat.com" , "Ayoun, Serge" , "Katz-zamir, Shay" , "Huang, Haitao" , "andriy.shevchenko@linux.intel.com" , "tglx@linutronix.de" , "Svahn, Kai" , "bp@alien8.de" , "josh@joshtriplett.org" , "Huang, Kai" , "rientjes@google.com" , "Dave Hansen" , Haitao Huang , Jethro Beekman , "Dr . Greg Wettstein" Subject: RE: [PATCH v19,RESEND 24/27] x86/vdso: Add __vdso_sgx_enter_enclave() to wrap SGX enclave transitions Thread-Topic: [PATCH v19,RESEND 24/27] x86/vdso: Add __vdso_sgx_enter_enclave() to wrap SGX enclave transitions Thread-Index: AQHU3zmquZHDGSY4XUWmggeyxtSmi6YU12fwgACBcQD//5sEUIADt/WAgADIIJCAAMRtgP//souwgAM2LoCAAGNgAP//0r3A Date: Tue, 26 Mar 2019 04:53:36 +0000 Message-ID: <960B34DE67B9E140824F1DCDEC400C0F4E85FABF@ORSMSX116.amr.corp.intel.com> References: <20190320162119.4469-1-jarkko.sakkinen@linux.intel.com> <20190320162119.4469-25-jarkko.sakkinen@linux.intel.com> <960B34DE67B9E140824F1DCDEC400C0F4E85C484@ORSMSX116.amr.corp.intel.com> <20190320191318.GF30469@linux.intel.com> <960B34DE67B9E140824F1DCDEC400C0F4E85C5AB@ORSMSX116.amr.corp.intel.com> <20190322215903.GE12666@linux.intel.com> <960B34DE67B9E140824F1DCDEC400C0F4E85E481@ORSMSX116.amr.corp.intel.com> <960B34DE67B9E140824F1DCDEC400C0F4E85E989@ORSMSX116.amr.corp.intel.com> <20190325180349.GF31069@linux.intel.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-titus-metadata-40: eyJDYXRlZ29yeUxhYmVscyI6IiIsIk1ldGFkYXRhIjp7Im5zIjoiaHR0cDpcL1wvd3d3LnRpdHVzLmNvbVwvbnNcL0ludGVsMyIsImlkIjoiYTA4OWJlMWItN2NmYS00Zjc4LThkOWMtZDcxZDIxOWZlNDAwIiwicHJvcHMiOlt7Im4iOiJDVFBDbGFzc2lmaWNhdGlvbiIsInZhbHMiOlt7InZhbHVlIjoiQ1RQX05UIn1dfV19LCJTdWJqZWN0TGFiZWxzIjpbXSwiVE1DVmVyc2lvbiI6IjE3LjEwLjE4MDQuNDkiLCJUcnVzdGVkTGFiZWxIYXNoIjoiTUkxQ2F0dGs4YkowXC9LSENrRWlwWjVPTjg1ZGZscjhsMXJCXC9XQnJ2R09ldGcxWExrV3BNcTNhMXlLZHQxajdqIn0= x-ctpclassification: CTP_NT dlp-product: dlpe-windows dlp-version: 11.0.400.15 dlp-reaction: no-action x-originating-ip: [10.22.254.138] Content-Type: text/plain; charset="utf-8" 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 PiBPbiBNb24sIE1hciAyNSwgMjAxOSBhdCAxMTowMyBBTSBTZWFuIENocmlzdG9waGVyc29uDQo+ IDxzZWFuLmouY2hyaXN0b3BoZXJzb25AaW50ZWwuY29tPiB3cm90ZToNCj4gPg0KPiA+IE9uIFN1 biwgTWFyIDI0LCAyMDE5IGF0IDAxOjU5OjQ4QU0gLTA3MDAsIFhpbmcsIENlZHJpYyB3cm90ZToN Cj4gPiA+IEFzIHNhaWQgaW4gbXkgcHJldmlvdXMgZW1haWwsIHRoaXMgdkRTTyBBUEkgaXNuJ3Qg ZXZlbiBjb21wbGlhbnQgdG8NCj4gPiA+IHg4Nl82NCBBQkkgYW5kIGlzIGFic29sdXRlbHkgTk9U IGZvciBhdmVyYWdlIGRldmVsb3BlcnMuIEluc3RlYWQsDQo+ID4gPiBob3N0L2VuY2xhdmUgY29t bXVuaWNhdGlvbnMgYXJlIGV4cGVjdGVkIHRvIGJlIGhhbmRsZWQgYnkgU0RLcyBhbmQNCj4gPiA+ IHRob3NlIGRldmVsb3BlcnMgd2lsbCBiZSB2ZXJ5IGF3YXJlIG9mIHRoZSBsaW1pdGF0aW9ucyBv ZiB0aGVpcg0KPiA+ID4gdGFyZ2V0ZWQgZW52aXJvbm1lbnRzLCBhbmQgd2lsbCBuZWVkIHRoZSBm cmVlZG9tIHRvIGRlcGxveSBvcHRpbWFsDQo+IHNvbHV0aW9ucy4NCj4gDQo+ID4gSSBmdWxseSBy ZWFsaXplIHRoYXQgdGhlIGFib3ZlIGFwcHJvYWNoIHNhZGRsZXMgQ2VkcmljIGFuZCB0aGUgU0RL DQo+ID4gdGVhbSB3aXRoIHRoZSBleHRyYSB0YXNrIG9mIGp1c3RpZnlpbmcgdGhlIG5lZWQgZm9y IHR3byB2RFNPDQo+ID4gaW50ZXJmYWNlcywgYW5kIGxpa2VseSByZWR1Y2VzIHRoZSBwcm9iYWJp bGl0eSBvZiB0aGVpciBwcm9wb3NhbCBiZWluZw0KPiA+IGFjY2VwdGVkLiAgQnV0LCB3ZSBkb24n dCAqZm9yY2UqIHRoZSBTREsgdG8gYmUgcmV3cml0dGVuLCBhbmQgd2UgZ2Fpbg0KPiA+IGEgdkRT TyBpbnRlcmZhY2UgdGhhdCBtYW55IHBlb3BsZSB3YW50IGFuZCBpcyBhY2NlcHRhYmxlIHRvIHRo ZQ0KPiA+IG1haW50YWluZXJzICh1bmxlc3MgSSd2ZSBob3JyaWJseSBtaXNyZWFkIEFuZHkncyBw b3NpdGlvbikuDQo+IA0KPiBJIGRvbid0IHRoaW5rIHlvdSd2ZSBob3JyaWJseSBtaXNyZWFkIGl0 LiAgSSB3b3VsZCBsaWtlIHRvIGtlZXAgdGhlDQo+IHN0dWZmIGluIHRoZSB2RFNPIGFzIG1pbmlt YWwgYXMgcG9zc2libGUuICBJZiB3ZSBuZWVkIHRvIGFkZCBhIGZhbmNpZXINCj4gaW50ZXJmYWNl IGRvd24gdGhlIGxpbmUsIHRoZW4gdGhhdCdzIGZpbmUuDQoNCkFuZHksIEkgZG9uJ3Qga25vdyAi bWFueSBwZW9wbGUiIGlzIGhvdyBtYW55IGluIFNlYW4ncyBlbWFpbC4gSSBjb3VsZG4ndCB0ZWxs IHlvdSBob3cgbG9uZyBpdCB0b29rIHVzIHRvIHNldHRsZSBvbiB0aGUgY3VycmVudCBTR1ggSVNB IGJlY2F1c2UgeW91IHdvdWxkIGp1c3QgTEFVR0ghIFdoeT8gQmVjYXVzZSBpdCB0b29rIGluc2Fu ZWx5IHJpZGljdWxvdXNseSBsb25nLiBXaHkgdGhhdCBsb25nPyBCZWNhdXNlIHRoZSBoL3cgYW5k IHUtY29kZSB0ZWFtcyB3b3VsZCBsaWtlIHRvIHRyaW0gZG93biB0aGUgSVNBIGFzIG11Y2ggYXMg cG9zc2libGUuIFRoZSBmYWN0IGlzLCB3aGF0ZXZlciBuZXcgaXMgcmVsZWFzZWQsIEludGVsIHdp bGwgaGF2ZSB0byBtYWludGFpbiBpdCBvbiBhbGwgZnV0dXJlIHByb2Nlc3NvcnMgRk9SRVZFUiEg VGhhdCBtZWFucyBzaWduaWZpY2FudC9vbi1nb2luZyBjb3N0IHRvIEludGVsLiBTbyBhbnkgYWRk aXRpb24gdG8gSVNBIGhhcyB0byB1bmRlcmdvIGV4dGVuc2l2ZSByZXZpZXdzIHRoYXQgaW52b2x2 ZSBhbGwga2luZHMgb2YgZXhwZXJ0cyBmcm9tIGJvdGggd2l0aGluIEludGVsIGFuZCBleHRlcm5h bGx5LCBhbmQgd291bGQgdXN1YWxseSB0YWtlIHllYXJzLCBiZWZvcmUgeW91IGNhbiBzZWUgd2hh dCB5b3UgYXJlIHNlZWluZyB0b2RheS4gQXMgSSBzYWlkIGluIG15IGVhcmxpZXIgZW1haWxzLCBS QlAgaXMgTk9UIG5lZWRlZCBmb3IgaW50ZXJydXB0L2V4Y2VwdGlvbiBoYW5kbGVycywgdGhlbiBo b3cgZGlkIFJCUCBlbmQgdXAgYmVpbmcgcmVzdG9yZWQgYXQgQUVYPyBZb3UgY2FuIGd1ZXNzIGhv dyBtYW55IHBlb3BsZSB3ZXJlIHN0YW5kaW5nIGJlaGluZCBpdCEgU2VhbiBoYXMgbm8gY2x1ZSEg SSBjYW4gYXNzdXJlIHlvdSENCg0KR3Vlc3Mgd2UndmUgdGFsa2VkIGVub3VnaCBvbiB0aGUgdGVj aG5pY2FsIGZyb250LiBTbyBsZXQncyB0YWxrIGFib3V0IGl0IG9uIHRoZSBidXNpbmVzcyBmcm9u dC4gTGV0IG1lIHRha2UgYSBzdGVwIGJhY2suIExldCdzIHNheSB5b3UgYXJlIHJpZ2h0LCBhbGwg ZW5jbGF2ZXMgd291bGQgZXZlbnR1YWxseSBiZSBjb2RlZCBpbiB0aGUgd2F5IHlvdSB3YW50LiBX ZSAoSW50ZWwgU0RLIHRlYW0pIHdlcmUgY29udmluY2VkIHRvIGZvbGxvdyB5b3VyIGFwcHJvYWNo LiBCdXQgdGhlcmUgd2VyZSBleGlzdGluZyBlbmNsYXZlcyBhbmQgYSBtaWdyYXRpb24gcGF0aCB3 b3VsZCBiZSBuZWVkZWQuIFdvdWxkIHlvdSBsaWtlIHRvIHN1cHBvcnQgdXM/IEl0J2QgYmUgb25s eSA5IExPQyBvbiB5b3VyIHNpZGUgYnV0IGhvdyBtdWNoIHdvdWxkIGluY3VyIG9uIG91ciBzaWRl PyBJZiB5b3UgYmVsaWV2ZSB5b3UgYXJlIGRvaW5nIHJpZ2h0IHRoaW5nLCB0aGVuIGFjY2VwdGFu Y2UgaXMgdGhlIG5leHQgdGhpbmcgeW91IHNob3VsZCB0aGluayBvZi4gWW91IHNob3VsZCBvZmZl ciBhbiBlYXN5IHBhdGggZm9yIHRob3NlIHdobyBkaWQgIndyb25nIiB0byBnZXQgb24geW91ciAi cmlnaHQiIGJvYXQuIERvbid0IHlvdSB0aGluayBzbz8NCg0KLUNlZHJpYw0K