Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   "Edgecombe, Rick P" <rick.p.edgecombe@intel.com>
To:     "peterz@infradead.org" <peterz@infradead.org>,
        "Yang, Weijiang" <weijiang.yang@intel.com>,
        "pbonzini@redhat.com" <pbonzini@redhat.com>,
        "Christopherson,, Sean" <seanjc@google.com>,
        "john.allen@amd.com" <john.allen@amd.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "kvm@vger.kernel.org" <kvm@vger.kernel.org>
Subject: Re: [PATCH v2 21/21] KVM:x86: Support CET supervisor shadow stack MSR
 access
Thread-Topic: [PATCH v2 21/21] KVM:x86: Support CET supervisor shadow stack
 MSR access
Thread-Index: AQHZdHFyi6vR/qt18UeCPYYHW6Q6nK9I2oYA
Date:   Wed, 3 May 2023 17:07:15 +0000
Message-ID: <175c826d59f1ac77fa588908d3768ffc2e79268e.camel@intel.com>
References: <20230421134615.62539-1-weijiang.yang@intel.com>
         <20230421134615.62539-22-weijiang.yang@intel.com>
In-Reply-To: <20230421134615.62539-22-weijiang.yang@intel.com>
Accept-Language: en-US
Content-Language: en-US
user-agent: Evolution 3.44.4-0ubuntu1 
x-ms-exchange-antispam-messagedata-chunkcount: 1
x-ms-exchange-antispam-messagedata-0: =?utf-8?B?WVIzanJWYnJtRFA2azlQZUFEdmpKd01ZTm9xSi9VMWFIOGEwMVo0S09sUmNa?=
 =?utf-8?B?cG5peXZYQ2VsYnFjelBpRnZrTGNxWDQ2WFdsNHJDTU9xeDQ3a2VaaUxhL1Ax?=
 =?utf-8?B?QmZ3d0twclJ5UDhZMElxRks0WWRNOTZJZzVTUnpoUzJPNExsazlSTktpUUt1?=
 =?utf-8?B?TTNtU0FKOWxCRmlNY0ovN3ZDUWNaR2FhcVIvbEliMWhPbDRuMGZUOWlCQW9r?=
 =?utf-8?B?QnRaTG9YT2duVDB0Zkl1UHRvSC95a0xlZmp2MlRadTIwbXF6ODRBSjloNCto?=
 =?utf-8?B?dkIwZ3ZiQ000WjNjdFNMaU80bHhsM3YxNGpNT3ovTmVFL0krVHQxRGhoTGRM?=
 =?utf-8?B?Q0VqSWk3UitlWDNCT1B3Q09IcHlUc0FPVGYyMU5sUmxaNWhiR25yTUZtb29j?=
 =?utf-8?B?VmFSMVo0VWtha3VnVGt4Rnh6bDN6UjFZTjlUZDdRQjVadXNkZEtPU0xHQ09S?=
 =?utf-8?B?WGlWNjNUMTlWNzhnTm5ydW9EZzZOeGJ1YlVpTWdXemczRFhoTkNuZVFHZ2N4?=
 =?utf-8?B?amdMVzdYNk96MmFWS3dJL0lkZWtPOUgrcmpVR1N0Z3pGNEgwVi82bjFxdThH?=
 =?utf-8?B?am1oakRqU0ZldFFsQ0dBUDZtMzcrU1o4VFZtUlhrOXFQVjY2ZTJhQkZ2WXpv?=
 =?utf-8?B?WEZhSFlMUG4reXFwY2RZUm9lbjVOSWFjUVpLTmcvZHQ5OVNzMk5aS2ZYUjVJ?=
 =?utf-8?B?QVZ6dGhaRzRIbFBnODRYR3p3RWNleER0LzNMQWo3am9QTC9IcHhUN0M5OHVr?=
 =?utf-8?B?TzRvaU9uUVl3WnRYOWdQTGpYZHc0SjdpWlN6WXRLSmRlaWwrVi9tWnZtRml5?=
 =?utf-8?B?SHVnRE0rSXpaclhkOUNJaTFGVjhKMlR6SjF5dzk4RndvV3JWRUNiOGE4eS93?=
 =?utf-8?B?TXZ4N2g5MktzZ1d3bFk3REtFWTBiSnB0Z29vd0pGWmdRclBqaUFxSVFtdFQ2?=
 =?utf-8?B?ZW9VS1RkcE1tWVc3VmVmQXBaaVdQYXBqMVBaOGFkbE9HQUdwOEdyVFM2SXNa?=
 =?utf-8?B?cHVOZXhLTm14OFVHSGNyWXM2c29DUCtsTENUSWR1UkltaFdYd0trc2dyY2FN?=
 =?utf-8?B?TTE1QnZhemdQcjZ5b2RzWTFKeWVweXEvdzJZdGlRR3hNM0dlaVBLc3IrdHJj?=
 =?utf-8?B?ZnhBeGVqMjk1WXdKWFVPWTlOcHNwNVAzbW5VbkFkUSs3RUFlOFBrYlZLMngr?=
 =?utf-8?B?bE0zbzRkN05YTTFiNFU2aGZ5SlpHMTBLZVR5TlVuOVhqSXgyOFhWV21HZDFT?=
 =?utf-8?B?aEd2OEJ2eTlXZFdFTUpmSlRWOTlyOHNZTFkyNW5BUTNNQWRKaE1PS21tdkQz?=
 =?utf-8?B?MjRoNjlVODEwcUhjeGpEVUJtMEdCSGE5SmNkNWU1NjkxTlBXN09ndm5aSlh2?=
 =?utf-8?B?a01kd0VnMkZjaGFQVk5TL2lmdHdRWk5OWnZNU1JNMWo4L2VoQ0s5MmVDMFh4?=
 =?utf-8?B?UThobjdZd0xiS014Y0NDMTdpZEhaWUN4Ykx6LzRmVTJnSmM1ekh6TzJ5ZzdT?=
 =?utf-8?B?VUtCeEFwV1lYUmYzTDNDamE0SGltZGgrTG11THNSdFM4NzJBaVdVY0NSWXpF?=
 =?utf-8?B?dXJ5OFpBb3NCVS85U1k5WnMwWG95SWhFYkcvV1hmL0E3MDBoLzZiRFRubFo1?=
 =?utf-8?B?YXRQbStmNUZJVDdrMW9vdDlWVDZvNEJTcldHcC9vd1RrZ0ZhMmg1L1NKb1l2?=
 =?utf-8?B?TmIrTS9oeEVlUHpIUEMxY3A3cENlYldJZFcvaGdtUXh4V0pPaUVBOVlnSDQ1?=
 =?utf-8?B?QWE1cEdSbE93KzRXbkg2ZEtIOEJ4MjlaMTg5ZjVhQi9yT1lxYSthcEVwZjlT?=
 =?utf-8?B?SlZXOStBVDlyYVRLMTZOdkZJNzA0V244dHBSUXBzamFIWFFpNDZTM0ZRem9L?=
 =?utf-8?B?NmN0SE5rZmZ2TDVGRDk1ZDBLeGxwSXFPcGdBM0VHNnVwNDFhU1Q3SFhUbUd1?=
 =?utf-8?B?bElmWkVGSVp5WTNRWXFIc0RjcHVoK0dYdFRVZXl6bUUzMnBJR1JDT05VQnE3?=
 =?utf-8?B?U00wd0ZON01sOC9VN0ZyLytkancycU1FNVh6Y2VjSkZYM1R4cXE1R0hJMytn?=
 =?utf-8?B?dWo5S3FZUm5paTk0RXNqeVhHblArb2dReU1OQis2cUdXWWpvWkVtYlVoTk0z?=
 =?utf-8?B?TExWcFl5UStjQ2NwRHZaV0c0UjdzSmlhemJCQ1ZQT2paazNZKzkwamU2U0dF?=
 =?utf-8?B?QkE9PQ==?=
Content-Type: text/plain; charset="utf-8"
Content-ID: <E1EFAB63CFB0F142B51D794A130D48CF@namprd11.prod.outlook.com>
Content-Transfer-Encoding: base64
MIME-Version: 1.0
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: MN0PR11MB5963.namprd11.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 85c9b918-363c-45ad-ad9d-08db4bf8d838
X-MS-Exchange-CrossTenant-originalarrivaltime: 03 May 2023 17:07:15.4584
 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 46c98d88-e344-4ed4-8496-4ed7712e255d
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: s7P/spM/L4bUzvcZwsl0uPfa/4VpbATDn+ik2dmNC3J5Z8mvty2s+GWIWyPMoDodkVEvKLCemA66hQgoPU0r7J0owvM+o1DsOqPdzZF0UF0=
X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH0PR11MB5394
X-OriginatorOrg: intel.com
X-Spam-Status: No, score=-4.6 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,
        DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,
        RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE,
        T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no
        version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on
        lindbergh.monkeyblade.net
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

T24gRnJpLCAyMDIzLTA0LTIxIGF0IDA5OjQ2IC0wNDAwLCBZYW5nIFdlaWppYW5nIHdyb3RlOg0K
PiArDQo+ICvCoMKgwqDCoMKgwqDCoGluY3B0ID0gIWlzX2NldF9zdGF0ZV9zdXBwb3J0ZWQodmNw
dSwNCj4gWEZFQVRVUkVfTUFTS19DRVRfS0VSTkVMKTsNCj4gK8KgwqDCoMKgwqDCoMKgaW5jcHQg
fD0gIWd1ZXN0X2NwdWlkX2hhcyh2Y3B1LCBYODZfRkVBVFVSRV9TSFNUSyk7DQo+ICsNCj4gK8Kg
wqDCoMKgwqDCoMKgdm14X3NldF9pbnRlcmNlcHRfZm9yX21zcih2Y3B1LCBNU1JfSUEzMl9JTlRf
U1NQX1RBQiwNCj4gTVNSX1RZUEVfUlcsIGluY3B0KTsNCj4gK8KgwqDCoMKgwqDCoMKgdm14X3Nl
dF9pbnRlcmNlcHRfZm9yX21zcih2Y3B1LCBNU1JfSUEzMl9QTDBfU1NQLA0KPiBNU1JfVFlQRV9S
VywgaW5jcHQpOw0KPiArwqDCoMKgwqDCoMKgwqB2bXhfc2V0X2ludGVyY2VwdF9mb3JfbXNyKHZj
cHUsIE1TUl9JQTMyX1BMMV9TU1AsDQo+IE1TUl9UWVBFX1JXLCBpbmNwdCk7DQo+ICvCoMKgwqDC
oMKgwqDCoHZteF9zZXRfaW50ZXJjZXB0X2Zvcl9tc3IodmNwdSwgTVNSX0lBMzJfUEwyX1NTUCwN
Cj4gTVNSX1RZUEVfUlcsIGluY3B0KTsNCj4gwqB9DQoNCldoeSBpcyB0aGlzIHRpZWQgdG8gWEZF
QVRVUkVfTUFTS19DRVRfS0VSTkVMPyBJIGRvbid0IGtub3cgaG93IHRoZSBTVk0NCnNpZGUgd29y
a3MsIGJ1dCB0aGUgaG9zdCBrZXJuZWwgZG9lc24ndCB1c2UgdGhpcyB4ZmVhdHVyZS4gSnVzdCBu
b3QNCmNsZWFyIG9uIHdoYXQgdGhlIGludGVudGlvbiBpcy4gV2h5IG5vdCB1c2UNCmt2bV9jZXRf
a2VybmVsX3Noc3RrX3N1cHBvcnRlZCgpIGFnYWluPw0K