Received: by 10.223.176.5 with SMTP id f5csp3515742wra; Mon, 29 Jan 2018 14:30:16 -0800 (PST) X-Google-Smtp-Source: AH8x225F9N+ui2dYRa2lGmVk6BLGJstkAWlQ0NxlYD/mZ8pZDqPZ2CnJbBEOnYg4WOE0qKi1NSzy X-Received: by 2002:a17:902:4324:: with SMTP id i33-v6mr22943126pld.39.1517265016673; Mon, 29 Jan 2018 14:30:16 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1517265016; cv=none; d=google.com; s=arc-20160816; b=IK5slYGupmapHpdSUvqbdlNvyI6+vPVtej62aME6Om8Ue9nQYNugnGMqwWMAEPbhS6 doRa8v380DqzdSLpmUPMmHQzWWlBj6te5rNaUfg2NaMJf+6q4eJe3Zzv6SmNGFRQQ/mY fhIsHjuiBvJc/jyyEsSkyxvdn+LviNH3I0m2zpshY19bWP2cdeXkkMgBcbovP7WK3cXx LRHqQOJ8Z/71W0zuDKOgveSFHIgFtY71kte5b01Pc0QMburBlZJq1b+7A22cQ+ywX0dO 24/emT5SsnWP50y/KMdxZJFXZJ+0TRYZ2eZlgkmT4uwhRJr6PBOt24ac3up9ZR+USqEw JzaQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:content-transfer-encoding :content-id:spamdiagnosticmetadata:spamdiagnosticoutput :content-language:accept-language:message-id:date:thread-index :thread-topic:subject:cc:to:from:dkim-signature :arc-authentication-results; bh=rC7PB6t6KkZGR7Vte5hNo63yOAbEqcRotgEGP7QgSBs=; b=C/p4FAaBBhhsU72zhOkqlB9ao5DgGiqikh/TDPninIV42ExWCK+M+RGWGEk2FD8ADL L2ofK1usSIDZ3MfP35xHT/mFkyjJoXP5Cmll8EKxQQn8ArMk2CtiUdmNVDM+5Au9KijY IbxjufNjeIla4mKPTP4Z8IzOqzeLbHIlP/mH7HR1TH1pTo65TgWnrqdQBrXegyTSH+lY vIk27Ve2Vrpmyvvc5PgfLXmkU25upBi8Jroot+IALXVood6a4spvnPrWzrTCmXNts7Tz SX0JAnOl6mlJ2d8ptW4FMLSIxmfLTYLzcgoSL4LG7ssenStsc/LSBPNSfCRI3HMdgol4 xx0w== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@onevmw.onmicrosoft.com header.s=selector1-vmware-com header.b=Yb3Sc0rT; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id t10si688856pfk.153.2018.01.29.14.30.01; Mon, 29 Jan 2018 14:30:16 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@onevmw.onmicrosoft.com header.s=selector1-vmware-com header.b=Yb3Sc0rT; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751619AbeA2W3h (ORCPT + 99 others); Mon, 29 Jan 2018 17:29:37 -0500 Received: from mail-dm3nam03on0051.outbound.protection.outlook.com ([104.47.41.51]:10696 "EHLO NAM03-DM3-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751373AbeA2W3f (ORCPT ); Mon, 29 Jan 2018 17:29:35 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=onevmw.onmicrosoft.com; s=selector1-vmware-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=rC7PB6t6KkZGR7Vte5hNo63yOAbEqcRotgEGP7QgSBs=; b=Yb3Sc0rTNxE4djYtqqTyh5nPMgbPesPgPW4AzSx8MmG6mO9388N4czTRTumdqe6CXmFK+jAPD8Fknq7iIg5XrGHdBbeoKC4YedP+OAJ5kmnw2Hnl2ChaZYj9+N9/y3j6+vsepdbrRB4KPYf3ykhpP6EM/hhhos4nUf2VlHw+JVg= Received: from BN6PR05MB3458.namprd05.prod.outlook.com (10.174.232.34) by BN6PR05MB2993.namprd05.prod.outlook.com (10.173.19.11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256) id 15.20.464.6; Mon, 29 Jan 2018 22:29:28 +0000 Received: from BN6PR05MB3458.namprd05.prod.outlook.com ([10.174.232.34]) by BN6PR05MB3458.namprd05.prod.outlook.com ([10.174.232.34]) with mapi id 15.20.0464.008; Mon, 29 Jan 2018 22:29:28 +0000 From: David Dunn To: Eduardo Habkost CC: Arjan van de Ven , KarimAllah Ahmed , "Wilson, Matt" , "linux-kernel@vger.kernel.org" , Andi Kleen , Andrea Arcangeli , Andy Lutomirski , Ashok Raj , Asit Mallick , Borislav Petkov , Dan Williams , Dave Hansen , "Greg Kroah-Hartman" , "H . Peter Anvin" , Ingo Molnar , Janakarajan Natarajan , Joerg Roedel , Jun Nakajima , Laura Abbott , Linus Torvalds , Masami Hiramatsu , Paolo Bonzini , Peter Zijlstra , =?utf-8?B?UmFkaW0gS3LEjW3DocWZ?= , Thomas Gleixner , Tim Chen , Tom Lendacky , "kvm@vger.kernel.org" , "x86@kernel.org" , "Dr. David Alan Gilbert" , Fred Jacobs , Jim Mattson , David Woodhouse Subject: Re: [RFC,05/10] x86/speculation: Add basic IBRS support infrastructure Thread-Topic: [RFC,05/10] x86/speculation: Add basic IBRS support infrastructure Thread-Index: AQHTmVCgOXQhw5p0hkWXEZIqJN2wLQ== Date: Mon, 29 Jan 2018 22:29:28 +0000 Message-ID: <7EB9643C-D2DD-477A-90DE-05DC653D2D4B@vmware.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [67.148.5.86] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;BN6PR05MB2993;7:ytVvse5gyPPkH2AnA8nV+eCbor6TtLKdFL7oQWwNlkei6KE3rDeIlDDyuiqLblJFDNTAVrzMo2eQtgt8GRbahX+l++U3FymBDS4St+ZZD68TchQ2upaWQUPOQVurouFWi2kN+USLwAN+8uiv5XvOGdmSZ9DFOnZ1WQVEW0N5PS2olDik19tD9wcYz7pi8VfWNFpUvQqGtC287FyR2zpNUyg6IkSfz3p4jAVR4kn3l7HzfL106w9PDXXGHyeiZTgI;20:SfXkRopL+8+Ww5z6yBxHOWS3Zt6O8X7I4CGakgXgKd9D3xKISOjdQl0VJgHXV0a0LplPP/YHG7toNkRvcF0n0WF+j6vYxi1pH1aYZcsltOJeLC1ua0RKCEwSrfD+P+juYGBp97Brau+YrnlRMlBoVakOl8IlV/zxrD1eJlQLVTU= x-ms-office365-filtering-correlation-id: af6d27d8-683f-4f7a-c319-08d56767c2ac x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(4534165)(4627221)(201703031133081)(201702281549075)(5600026)(4604075)(3008032)(2017052603307)(7153060)(7193020);SRVR:BN6PR05MB2993; x-ms-traffictypediagnostic: BN6PR05MB2993: authentication-results: spf=none (sender IP is ) smtp.mailfrom=ddunn@vmware.com; x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:; x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(6040501)(2401047)(5005006)(8121501046)(93006095)(93001095)(3002001)(3231101)(944501161)(10201501046)(6041288)(20161123564045)(20161123558120)(20161123562045)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123560045)(6072148)(201708071742011);SRVR:BN6PR05MB2993;BCL:0;PCL:0;RULEID:;SRVR:BN6PR05MB2993; x-forefront-prvs: 0567A15835 x-forefront-antispam-report: SFV:NSPM;SFS:(10009020)(396003)(376002)(346002)(39860400002)(39380400002)(366004)(377424004)(199004)(189003)(99286004)(77096007)(3280700002)(26005)(186003)(36756003)(82746002)(8936002)(8676002)(81156014)(81166006)(68736007)(105586002)(14454004)(2900100001)(83716003)(86362001)(6116002)(3846002)(66066001)(54906003)(6916009)(3660700001)(316002)(2906002)(5660300001)(6436002)(6512007)(33656002)(8666007)(305945005)(229853002)(7736002)(106356001)(478600001)(6246003)(97736004)(53936002)(6486002)(59450400001)(102836004)(6506007)(25786009)(7416002)(4326008)(7406005);DIR:OUT;SFP:1101;SCL:1;SRVR:BN6PR05MB2993;H:BN6PR05MB3458.namprd05.prod.outlook.com;FPR:;SPF:None;PTR:InfoNoRecords;A:1;MX:1;LANG:en; received-spf: None (protection.outlook.com: vmware.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: pcWioMdbLbAGBmCb45q8RlizdUhk/gkarjWm/Ongw31d2oWvbXr6t+Dr9ZhneC98wbej7tc9E+40NmX2HGlPQg== spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="utf-8" Content-ID: <6DEC18E7AAFEFB418C9525183618C883@namprd05.prod.outlook.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: vmware.com X-MS-Exchange-CrossTenant-Network-Message-Id: af6d27d8-683f-4f7a-c319-08d56767c2ac X-MS-Exchange-CrossTenant-originalarrivaltime: 29 Jan 2018 22:29:28.7250 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: b39138ca-3cee-4b4a-a4d6-cd83d9dd62f0 X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN6PR05MB2993 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org T24gTW9uLCAyMDE4LTAxLTI5IGF0IDEzOjQ1OjA3IC0wODAwLCBFZHVhcmRvIEhhYmtvc3Qgd3Jv dGU6DQoNCj4gTWF5YmUgYSBnZW5lcmljICJmYW1pbHkvbW9kZWwvc3RlcHBpbmcvbWljcm9jb2Rl IHJlYWxseSBtYXRjaGVzDQo+IHRoZSBDUFUgeW91IGFyZSBydW5uaW5nIG9uIiBiaXQgd291bGQg YmUgdXNlZnVsLiAgVGhlIGJpdCBjb3VsZA0KPiBiZSBlbmFibGVkIG9ubHkgb24gaG9zdC1wYXNz dGhyb3VnaCAoYWthICItY3B1IGhvc3QiKSBtb2RlLg0KPiANCj4gSWYgd2UgcmVhbGx5IHdhbnQg dG8gYmUgYWJsZSB0byBtaWdyYXRlIHRvIGhvc3Qgd2l0aCBkaWZmZXJlbnQNCj4gQ1BVIG1vZGVs cyAoZXhjZXB0IFNreWxha2UpLCB3ZSBjb3VsZCBhZGQgYSBtb3JlIHNwZWNpZmljICJ3ZQ0KPiBw cm9taXNlIHRoZSBob3N0IENQVSBpcyBuZXZlciBnb2luZyB0byBiZSBTa3lsYWtlIiBiaXQuDQo+ IA0KPiBOb3csIGlmIHRoZSBoeXBlcnZpc29yIGlzIG5vdCBwcm92aWRpbmcgYW55IG9mIHRob3Nl IGJpdHMsIEkNCj4gd291bGQgYWR2aXNlIGFnYWluc3QgdHJ1c3RpbmcgZmFtaWx5L21vZGVsL3N0 ZXBwaW5nL21pY3JvY29kZQ0KPiB1bmRlciBhIGh5cGVydmlzb3IuICBVc2luZyBhIHByZS1kZWZp bmVkIENQVSBtb2RlbCAodGhhdCBkb2Vzbid0DQo+IG5lY2Vzc2FyaWx5IG1hdGNoIHRoZSBob3N0 KSBpcyB2ZXJ5IGNvbW1vbiB3aGVuIHVzaW5nIEtWTSBWTQ0KPiBtYW5hZ2VtZW50IHN0YWNrcy4N Cj4gDQoNCkVkdWFyZG8sDQoNCkkgZG9uJ3Qgc2VlIGhvdyB0aGlzIGlzIHBvc3NpYmxlIGluIGEg bW9kZXJuIHZpcnR1YWxpemF0aW9uIGVudmlyb25tZW50Lg0KIA0KVW5kZXIgVk13YXJlLCBhIFZN IHdpbGwgYmUgbWlncmF0ZWQgdG8gU2t5TGFrZSBpZiBvbmUgaXMgaW4gdGhlIGNsdXN0ZXIgYW5k IHN1cHBvcnRzIHRoZSBmZWF0dXJlcyBleHBvc2VkIHRvIHRoZSBWTS4gIFRoaXMgY2FuIG9jY3Vy IGZvciBzdXNwZW5kL3Jlc3VtZSBhcyB3ZWxsLg0KDQpUaGUgbWlncmF0aW9uIHBvb2wgaXNuJ3Qg YSBjb25zdGFudC4gIEhvc3RzIGNhbiBiZSBhZGRlZCB0byBhIGNsdXN0ZXIgYW5kIFZNcyBjYW4g YmUgaW5zdHJ1Y3RlZCB0byBtb3ZlIGFjcm9zcyBjbHVzdGVycy4gIFNvIHRoZXJlIGRvZXNuJ3Qg bmVlZCB0byBiZSBhIFNreUxha2UgYXJvdW5kIHdoZW4gdGhlIFZNIHBvd2VycyBvbiBpbiBvcmRl ciBmb3IgaXQgdG8gZXZlbnR1YWxseSBlbmQgdXAgb24gYSBTa3lMYWtlLg0KDQpFdmVuIGlmIHdl IGV4cG9zZSBiaXQgdG8gaW5kaWNhdGUgdGhhdCBGTVMgbWF0Y2hlcyB0aGUgdW5kZXJseWluZyBo b3N0LCB3aGVuIGRvZXMgdGhlIGd1ZXN0IGtub3cgdG8gcXVlcnkgdGhhdD8gIFRoZSBWTSBjYW4g YmUgbW92ZWQgYXQgYW55IHBvaW50IGluIHRpbWUsIGluY2x1ZGluZyBhZnRlciB0aGUgZ3Vlc3Qg YXNrcyBpZiBGTVMgbWF0Y2hlcyBob3N0Lg0KDQpNeSBhcG9sb2dpZXMgZm9yIHBvc3Rpbmcgb250 byB0aGUgbWFpbGluZyBsaXN0IG91dCBvZiB0aGUgYmx1ZS4gIFNvbWVvbmUgYXNrZWQgbXkgb3Bp bmlvbiBvbiB0aGlzIHN1Z2dlc3Rpb24uICBJJ20gZGVmaW5pdGVseSBpbnRlcmVzdGVkIGluIGZp Z3VyaW5nIG91dCB3aGV0aGVyIExpbnV4IGNhbiBmdWxseSBtaXRpZ2F0ZSB0aGUgU2t5TGFrZSBS U0IgcHJvYmxlbSBpbiB2aXJ0dWFsIGVudmlyb25tZW50cywgYnV0IGl0J3Mgbm90IGNsZWFyIGhv dyBiZXN0IHRvIGFjaGlldmUgdGhhdC4NCg0KVGhhbmtzLA0KDQpEYXZpZCBEdW5uDQoNCg==