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_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 DF526C4646D for ; Mon, 1 Jul 2019 19:22:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C9C252183F for ; Mon, 1 Jul 2019 19:22:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726673AbfGATW6 (ORCPT ); Mon, 1 Jul 2019 15:22:58 -0400 Received: from mga18.intel.com ([134.134.136.126]:41177 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726076AbfGATW6 (ORCPT ); Mon, 1 Jul 2019 15:22:58 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 01 Jul 2019 12:22:57 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.63,440,1557212400"; d="scan'208";a="163779368" Received: from orsmsx106.amr.corp.intel.com ([10.22.225.133]) by fmsmga008.fm.intel.com with ESMTP; 01 Jul 2019 12:22:56 -0700 Received: from orsmsx116.amr.corp.intel.com ([169.254.7.97]) by ORSMSX106.amr.corp.intel.com ([169.254.1.191]) with mapi id 14.03.0439.000; Mon, 1 Jul 2019 12:22:56 -0700 From: "Xing, Cedric" To: Andy Lutomirski , "Christopherson, Sean J" CC: Jarkko Sakkinen , "linux-sgx@vger.kernel.org" , LSM List , "selinux@vger.kernel.org" , "Roberts, William C" , "Schaufler, Casey" , James Morris , "Hansen, Dave" , Jethro Beekman , "Dr . Greg Wettstein" , Stephen Smalley Subject: RE: [RFC PATCH v4 04/12] x86/sgx: Require userspace to define enclave pages' protection bits Thread-Topic: [RFC PATCH v4 04/12] x86/sgx: Require userspace to define enclave pages' protection bits Thread-Index: AQHVJu27XnLeOL4jVkKHLIzqsJHQ+6a2lScA//+fsZA= Date: Mon, 1 Jul 2019 19:22:55 +0000 Message-ID: <960B34DE67B9E140824F1DCDEC400C0F6551D70B@ORSMSX116.amr.corp.intel.com> References: <20190619222401.14942-1-sean.j.christopherson@intel.com> <20190619222401.14942-5-sean.j.christopherson@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: eyJDYXRlZ29yeUxhYmVscyI6IiIsIk1ldGFkYXRhIjp7Im5zIjoiaHR0cDpcL1wvd3d3LnRpdHVzLmNvbVwvbnNcL0ludGVsMyIsImlkIjoiMjVjNTVhZTctZDhiOC00NzE2LThhMzYtZDhjZTllZTFjMTc0IiwicHJvcHMiOlt7Im4iOiJDVFBDbGFzc2lmaWNhdGlvbiIsInZhbHMiOlt7InZhbHVlIjoiQ1RQX05UIn1dfV19LCJTdWJqZWN0TGFiZWxzIjpbXSwiVE1DVmVyc2lvbiI6IjE3LjEwLjE4MDQuNDkiLCJUcnVzdGVkTGFiZWxIYXNoIjoiRWY2clpqQWZwTkFtVHQ2MDQzbEZSc1g5RHZsQkxiamlIbTlVSFdIYjB0T3NwdXFWdGVxaTA2c04rZGlXRktNViJ9 x-ctpclassification: CTP_NT dlp-product: dlpe-windows dlp-version: 11.2.0.6 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: selinux-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: selinux@vger.kernel.org PiBGcm9tOiBBbmR5IEx1dG9taXJza2kgW21haWx0bzpsdXRvQGtlcm5lbC5vcmddDQo+IFNlbnQ6 IE1vbmRheSwgSnVseSAwMSwgMjAxOSAxMTowMCBBTQ0KPiANCj4gT24gV2VkLCBKdW4gMTksIDIw MTkgYXQgMzoyNCBQTSBTZWFuIENocmlzdG9waGVyc29uDQo+IDxzZWFuLmouY2hyaXN0b3BoZXJz b25AaW50ZWwuY29tPiB3cm90ZToNCj4gPiAgc3RhdGljIGludCBzZ3hfbW1hcChzdHJ1Y3QgZmls ZSAqZmlsZSwgc3RydWN0IHZtX2FyZWFfc3RydWN0ICp2bWEpICB7DQo+ID4gICAgICAgICBzdHJ1 Y3Qgc2d4X2VuY2wgKmVuY2wgPSBmaWxlLT5wcml2YXRlX2RhdGE7DQo+ID4gKyAgICAgICB1bnNp Z25lZCBsb25nIGFsbG93ZWRfcnd4Ow0KPiA+ICAgICAgICAgaW50IHJldDsNCj4gPg0KPiA+ICsg ICAgICAgYWxsb3dlZF9yd3ggPSBzZ3hfYWxsb3dlZF9yd3goZW5jbCwgdm1hKTsNCj4gPiArICAg ICAgIGlmICh2bWEtPnZtX2ZsYWdzICYgKFZNX1JFQUQgfCBWTV9XUklURSB8IFZNX0VYRUMpICYN Cj4gfmFsbG93ZWRfcnd4KQ0KPiA+ICsgICAgICAgICAgICAgICByZXR1cm4gLUVBQ0NFUzsNCj4g PiArDQo+ID4gICAgICAgICByZXQgPSBzZ3hfZW5jbF9tbV9hZGQoZW5jbCwgdm1hLT52bV9tbSk7 DQo+ID4gICAgICAgICBpZiAocmV0KQ0KPiA+ICAgICAgICAgICAgICAgICByZXR1cm4gcmV0Ow0K PiA+DQo+ID4gKyAgICAgICBpZiAoIShhbGxvd2VkX3J3eCAmIFZNX1JFQUQpKQ0KPiA+ICsgICAg ICAgICAgICAgICB2bWEtPnZtX2ZsYWdzICY9IH5WTV9NQVlSRUFEOw0KPiA+ICsgICAgICAgaWYg KCEoYWxsb3dlZF9yd3ggJiBWTV9XUklURSkpDQo+ID4gKyAgICAgICAgICAgICAgIHZtYS0+dm1f ZmxhZ3MgJj0gflZNX01BWVdSSVRFOw0KPiA+ICsgICAgICAgaWYgKCEoYWxsb3dlZF9yd3ggJiBW TV9FWEVDKSkNCj4gPiArICAgICAgICAgICAgICAgdm1hLT52bV9mbGFncyAmPSB+Vk1fTUFZRVhF QzsNCj4gPiArDQo+IA0KPiBJJ20gd2l0aCBDZWRyaWMgaGVyZSAtLSB0aGlzIGlzIG5vIGdvb2Qu ICBUaGUgcmVhc29uIEkgdGhpbmsgd2UNCj4gbmVlZCAubWF5X21wcm90ZWN0IG9yIHNpbWlsYXIg aXMgZXhhY3RseSB0byBhdm9pZCBkb2luZyB0aGlzLg0KPiANCj4gbW1hcCgpIGp1c3QgbmVlZHMg dG8gbWFrZSB0aGUgc2FtZSB0eXBlIG9mIFZNQSByZWdhcmRsZXNzIG9mIHRoZSBwYWdlcw0KPiBp biB0aGUgcmFuZ2UuDQoNCkluc3RlYWQgb2YgbWFraW5nIGRlY2lzaW9ucyBvbiBpdHMgb3duLCBh IG1vcmUgZ2VuZXJpYyBhcHByb2FjaCBpcyBmb3IgU0dYIHN1YnN5c3RlbS9tb2R1bGUgdG8gYXNr IExTTSBmb3IgYSBkZWNpc2lvbiwgYnkgY2FsbGluZyBzZWN1cml0eV9maWxlX21wcm90ZWN0KCkg LSBhcyBhIG5ldyBtYXBwaW5nIGNvdWxkIGJlIGNvbnNpZGVyZWQgYXMgY2hhbmdpbmcgcHJvdGVj dGlvbiBmcm9tIFBST1RfTk9ORSB0byAodm1hLT52bV9mbGFncyAmIChWTV9SRUFEIHwgVk1fV1JJ VEUgfCBWTV9FWEVDKSkuDQoNCi5tYXlfbXByb3RlY3QoKSBhbHNvIHNvbHZlcyBwYXJ0IG9mIHRo ZSBwcm9ibGVtIC0gaS5lLiBWTUFzIHdpbGwgYmUgY3JlYXRlZCBjb25zaXN0ZW50bHkgYnV0IG5v bi1leGlzdGVudCBwYWdlcyBzdGlsbCBjYW5ub3QgYmUgbWFwcGVkLCB3aGljaCBob3dldmVyIGlz IG5lY2Vzc2FyeSBmb3IgI1BGIGRyaXZlbiBFQVVHIGluIFNHWDIuIEdpdmVuIHRoYXQgc2VjdXJp dHlfZmlsZV9tcHJvdGVjdCgpIGlzIGludm9rZWQgYnkgbXByb3RlY3QoKSBzeXNjYWxsLCBpdCBs b29rcyB0byBtZSBhIG1vcmUgc3RyZWFtbGluZWQgc29sdXRpb24gdG8gY2FsbCB0aGUgc2FtZSBo b29rIChzZWN1cml0eV9maWxlX21wcm90ZWN0KSBmcm9tIGJvdGggcGxhY2VzIChtbWFwIGFuZCBt cHJvdGVjdCkuIA0K