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:   "Huang, Kai" <kai.huang@intel.com>
To:     "kvm@vger.kernel.org" <kvm@vger.kernel.org>,
        "Hansen, Dave" <dave.hansen@intel.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
CC:     "Luck, Tony" <tony.luck@intel.com>,
        "bagasdotme@gmail.com" <bagasdotme@gmail.com>,
        "ak@linux.intel.com" <ak@linux.intel.com>,
        "Wysocki, Rafael J" <rafael.j.wysocki@intel.com>,
        "kirill.shutemov@linux.intel.com" <kirill.shutemov@linux.intel.com>,
        "Christopherson,, Sean" <seanjc@google.com>,
        "Chatre, Reinette" <reinette.chatre@intel.com>,
        "pbonzini@redhat.com" <pbonzini@redhat.com>,
        "linux-mm@kvack.org" <linux-mm@kvack.org>,
        "Yamahata, Isaku" <isaku.yamahata@intel.com>,
        "peterz@infradead.org" <peterz@infradead.org>,
        "Shahar, Sagi" <sagis@google.com>,
        "imammedo@redhat.com" <imammedo@redhat.com>,
        "Gao, Chao" <chao.gao@intel.com>,
        "Brown, Len" <len.brown@intel.com>,
        "sathyanarayanan.kuppuswamy@linux.intel.com" 
        <sathyanarayanan.kuppuswamy@linux.intel.com>,
        "Huang, Ying" <ying.huang@intel.com>,
        "Williams, Dan J" <dan.j.williams@intel.com>
Subject: Re: [PATCH v7 03/20] x86/virt/tdx: Disable TDX if X2APIC is not
 enabled
Thread-Topic: [PATCH v7 03/20] x86/virt/tdx: Disable TDX if X2APIC is not
 enabled
Thread-Index: AQHY/T2/qiNrCEbeGka7t7fkot0Cyq5KDH+AgAAMRIA=
Date:   Tue, 22 Nov 2022 00:30:30 +0000
Message-ID: <f9918596c4013444428899aca2cfa73b1f18c703.camel@intel.com>
References: <cover.1668988357.git.kai.huang@intel.com>
         <c5f484c1a87ee052597fd5f539cf021f158755b9.1668988357.git.kai.huang@intel.com>
         <87e17024-755d-e195-d9ea-ef62a4de6aa8@intel.com>
In-Reply-To: <87e17024-755d-e195-d9ea-ef62a4de6aa8@intel.com>
Accept-Language: en-US
Content-Language: en-US
user-agent: Evolution 3.44.4 (3.44.4-2.fc36) 
x-ms-exchange-antispam-messagedata-chunkcount: 1
x-ms-exchange-antispam-messagedata-0: =?utf-8?B?bXY1SFNjak1ENmJRbnRrL2p1L2RTYWV2RjFkN0thTktDcUNIZWIzbDhTeXRh?=
 =?utf-8?B?T0NzZEljaGlnYmJqdmxYa2VCUU1LbDlBRGkyK0Erb0hlUjA4SEkzZmR0MXY2?=
 =?utf-8?B?REpWUWJXeFUrTitiQXVRb2FnWkJ4MjlPemNwM041MEI0VXNIQ1A5VWdkMmNl?=
 =?utf-8?B?VG81SmxQa3JWVUw5NTRucXRTK3B1dE9GSVhadW1ER2hldEFOU0pRc1JYajZI?=
 =?utf-8?B?Sy9VeFZScXpweHpSajRXOXBxUkw5M1RPMWllN0RlZnlxcXkxQmNtSm1sY2Vl?=
 =?utf-8?B?ZmpGZGhMZ0pwZVpNS3FQZmZzcDlKcklmczV1bUtma0hrWTBrVEV0Ky9JUURN?=
 =?utf-8?B?ZzhHRjVMazAvemJBdTJVazZvcTdOMEtMU2JpdWpnTno4MTBRTWhiUC8xNTV2?=
 =?utf-8?B?aTZKazhJY3VTZ3NuN1BvQXpWZngwSC9kcThzV2Raa0NqQXVrWm1MK3FwUVlB?=
 =?utf-8?B?UWlhVHZKMDVsSkx4clcxU0NCRzgrL1BUWmFzdng2eVV0VXhxTkdsSU1jcitk?=
 =?utf-8?B?d0duZDQrbHRRb1BSa1d5YUVmVzRNd0dPbEV3RWhpZ25KVEVmdmgvVlFPT2oz?=
 =?utf-8?B?ZUFDL3pRNjJkbVVRUUdBMFFDdmVjaUhSVUJLMnhoNXRjNDlzcVJvaXk0R3JM?=
 =?utf-8?B?NldIeWZLN3FUWFVLL2dzVHc5U3dDM2kwQm5pSWhWMW9URUNTUEVKcTlML0Fi?=
 =?utf-8?B?ZUh1ZkFaWW9KdkZvU0lqbFIySm1FcEdIeVBUZDVPelNSbUNtZWpneENrT0hU?=
 =?utf-8?B?aDlBdHg3UmNuS2dqb0pkamQveUNVb1BXNmQyeUFQQy8vVjdrOTh3T2JQc3dP?=
 =?utf-8?B?dzVQMCsxOWZlY3RsdStPNWxRZ0RhbUFYM1FicmhFVlhRUGlxZXpVb3hrQUN3?=
 =?utf-8?B?c2xIdFp1Tmk2bXpTbDYwbXR4RXNlL3RXM3h0anJQSnZOeDJrSEJiQ1YvZFlz?=
 =?utf-8?B?VXAzL0k2RXpOS2IydHE3Y01CNWl0elpyZWFidko4MGw3bjJaSGJZbGNEaUVS?=
 =?utf-8?B?UEdpN1VNZXZtMWYzemVDc01TRUhFYjNTV1BxUk8vQnJFNm53VG5RK251NXNi?=
 =?utf-8?B?MGpNM2ZFWC90ajZ4cWRZTDZPOTZOUkdyM2h3eHhzVTF5eFBac0t4NFBGbm16?=
 =?utf-8?B?WTZ4cFRtUTUrNWFtdklNdzR0OVhsd2RINHdFZWhoeC96TllpKzZmS05jNVFI?=
 =?utf-8?B?cTN5TTZlRkhlK3NmRk5QbCtPaDlGQUpBVGJDNGIrc0RmRVhFdTFMUjJrVm5I?=
 =?utf-8?B?S09RT0JFeUNmcjVGaDE2UFhjYlNOY1ZpeGV5Wk5aUXMzcnNLS2FnVzBhaVpO?=
 =?utf-8?B?QzE5UXd6TU56VEZKNllCNVBHMGppem5qcGJ5bjJqdFgyVUlPcTBFbWVHN0xX?=
 =?utf-8?B?YTBMSE53YUowVkJwLzJVTlNLRStvalBIeGx4b2w4MkdmcExwcmdIWGx0alY1?=
 =?utf-8?B?Sm9QTVJrM3ZlWlBlYjBTSDNMT2Yreld0VnRKc2dYVGVNaXhNOXJoUGNhNFBF?=
 =?utf-8?B?OGF5NExyTEdZUHN2OW5ySWN2QnNoelU1WStTZ3d6aGFHcnFScUI1dWtQVWVR?=
 =?utf-8?B?T3FUVnZ0NnBnSkdqL0Q0MkxPUFFFazNLak5xWC9rUnVYdzhRMmNhWEhLZGwv?=
 =?utf-8?B?eVNQdE04YUxhWUhBOU8va0RLNkNxVkVPQnJ6MVZnK2h2MWU0a3pRbzZkWmNZ?=
 =?utf-8?B?ZGVrSDlQajc2SlVXZDNNamZQK2dpRWp4RjNtQ1FXNXByMUE2K2Y4bmlnWnZP?=
 =?utf-8?B?Q1RRa2p1aFV4N2tHUHMxTnQxZlc2VU9qQjZlVHFydXB6YmNFam5tbEJncFFz?=
 =?utf-8?B?YnZsN2gzTUkxOGF1bWpaNy9PVUdjQVRBT05rSzdYc2RwRVM5ZjM3SCtLenNu?=
 =?utf-8?B?ckdjNnhuV3ZDMmQ4dFVHZUVkV0tocHZBZ2dlWDAzN1pjOXBDV1Zwbk41bEFK?=
 =?utf-8?B?amx2Ny9WbVBxeWZJWnlrRU5JMkZPcm1sTk5aOEpWL0dUb09lU0VpbnRORDE1?=
 =?utf-8?B?eFQycDA3QTd4VUxmZytkSXFQOGhiV1lKTTJRKzZDK2JhdHduVkI3L3J6QTJ1?=
 =?utf-8?B?dXVZT3BML2RiR0xBS1FRZ2cyYVdQQUtoTVJCemh5RENJZzdTQUhzMUlCZnMx?=
 =?utf-8?B?MFRPZDNLNWU4Yi8xcnV3cWxrbWZTUnVlTVhPOEd1NGNHQVVreW1aYUp6SWtW?=
 =?utf-8?B?NUE9PQ==?=
Content-Type: text/plain; charset="utf-8"
Content-ID: <7467893DBB91C74CB72A3BF00080311D@namprd11.prod.outlook.com>
Content-Transfer-Encoding: base64
MIME-Version: 1.0
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: BL1PR11MB5978.namprd11.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 12c2b05b-3b96-41d0-5fff-08dacc20c317
X-MS-Exchange-CrossTenant-originalarrivaltime: 22 Nov 2022 00:30:31.0142
 (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: 4a+zyY4D1c6FIQp2W/R+MMG2BECnxxDiz/sG+2Ouu+bNTQjnwuk/kRvpC4ctTn5uWzaMInNoXoyfp+2QwkpS2A==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: CO6PR11MB5570
X-OriginatorOrg: intel.com
X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,
        DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,
        SPF_HELO_NONE,SPF_NONE 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
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