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:     "kirill.shutemov@linux.intel.com" <kirill.shutemov@linux.intel.com>
CC:     "Hansen, Dave" <dave.hansen@intel.com>,
        "Christopherson,, Sean" <seanjc@google.com>,
        "x86@kernel.org" <x86@kernel.org>, "bp@alien8.de" <bp@alien8.de>,
        "peterz@infradead.org" <peterz@infradead.org>,
        "hpa@zytor.com" <hpa@zytor.com>,
        "mingo@redhat.com" <mingo@redhat.com>,
        "tglx@linutronix.de" <tglx@linutronix.de>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "pbonzini@redhat.com" <pbonzini@redhat.com>,
        "Yamahata, Isaku" <isaku.yamahata@intel.com>,
        "sathyanarayanan.kuppuswamy@linux.intel.com" 
        <sathyanarayanan.kuppuswamy@linux.intel.com>,
        "n.borisov.lkml@gmail.com" <n.borisov.lkml@gmail.com>
Subject: Re: [PATCH v3 11/12] x86/virt/tdx: Allow SEAMCALL to handle #UD and
 #GP
Thread-Topic: [PATCH v3 11/12] x86/virt/tdx: Allow SEAMCALL to handle #UD and
 #GP
Thread-Index: AQHZv7EtIX/ZgmaCwUyXvrRdv67KjK/dNoCAgADz7gCAAIAegIAALvWA
Date:   Mon, 7 Aug 2023 12:41:13 +0000
Message-ID: <c4b1ab39b8e6e03e40ca390a41c96d096325428f.camel@intel.com>
References: <cover.1690369495.git.kai.huang@intel.com>
         <659b10910c206cb4a8de314fcf7cd58814279aa6.1690369495.git.kai.huang@intel.com>
         <20230806114131.2ilofgmxhdaa2u6b@box.shutemov.name>
         <b15b45ff5dc2fcfa08dfb3171c269d9ab0349088.camel@intel.com>
         <20230807095307.l7khgiu5y55pqq22@box.shutemov.name>
In-Reply-To: <20230807095307.l7khgiu5y55pqq22@box.shutemov.name>
Accept-Language: en-US
Content-Language: en-US
user-agent: Evolution 3.48.4 (3.48.4-1.fc38) 
x-ms-exchange-antispam-messagedata-chunkcount: 1
x-ms-exchange-antispam-messagedata-0: =?utf-8?B?b3VTcWNoMS80SjJTMitsaFdxRTZkakE0anN1M0VGOWxVNVZHZUtzc3BHUkgv?=
 =?utf-8?B?ZjByWThBdWZCekMvQzArOUtDeVpwMXZ0ZHhQdkpnUTBkRmoxenhBL3BJYXUr?=
 =?utf-8?B?YnFISVNJSWl4TzZOY1RuS3JGcHNKTVphdlp0ZDl2TGNLRlR3cmJmMU1YMnV6?=
 =?utf-8?B?ai9KTWcvT3lTa3NQMGVnZkpOZmJpK252dmdPdHp4cHp6dWpFTUNsR0pRVFhT?=
 =?utf-8?B?SVd4c0hpUzQ0L2FBS2cxNlNHVzhjdlJ4NEFqbDVWUytTT1lmTGF0UlNpdzl1?=
 =?utf-8?B?REcxRHpLbEZMUjZKbHNsMFRZSTBtUlpITytHRDVIdkc3UkxvMmR5RW5GaDc3?=
 =?utf-8?B?SDVpbGdvdkExSE1sS3hDUVgrZ205a3drVXZPQnpxc2JnUkJFMU5LZFg2cHVB?=
 =?utf-8?B?dmxKaDhMbzVmS1pLOHc4SWtaWkRod1BteGNKbnFDbGMzajk2RUJKcUFBUzVI?=
 =?utf-8?B?NlJUNUlDZlBkL1h1MWliRzhldXV0MW81RzgrZTFybDlRWmw1NWh3N2pqSFhC?=
 =?utf-8?B?czFLOEh3SEQzZkJKb0NnaExqSFJjL2tzc25QZnh1TnN3ZW1DSmZwVXA4QUpk?=
 =?utf-8?B?cjROZlJNQkRBSEZHVnNoM3BLV0VhNCtqMXpwMzFBTnZYTnZrSEFvMDBHdTZB?=
 =?utf-8?B?LzJaQnFvYjYrOFlWaDR2dXVXR2pYb3Y3M2hHUkozK01CNDJUUkRHaEh1Q1lN?=
 =?utf-8?B?bUJxNEFtbmpqZU1ENEdpQmtITEV5dEFmMHY4NmtDbW8rVGRxN3dOTWpzeDdu?=
 =?utf-8?B?eU1OL1QxUXJNRDFWNzlBSGl1WExlbkg3dEYxSVEzeGo1S0J3aElRMEQwOTFD?=
 =?utf-8?B?YmQ5K0daR00vODFjRUszZUNtTXB6L0x6bi9DSzl5RS8xYUU0bWowNE9Ec3Jr?=
 =?utf-8?B?R2dVdnNNTFdqZWs4K1JPVFJ3MHhsb0x5Z2VKU3VlWllMeXozN0Y1dzcyVyta?=
 =?utf-8?B?SjZpTUhuY0hYeTZMQjRDeUNyYUVsMHFxYytkWWxnditvTXRhdlVpSmRvdTFM?=
 =?utf-8?B?V1l2SnRrbkFETTc5R0c0MjZUT2NTaHNPZ2pESjE0aW5YeFlZNmx4Q1Y3L0pt?=
 =?utf-8?B?ZGZkMjExbCttQVRSNzluWHV0OE1IdjhzMlpzT3ZGcGcxbDlQZDhpQm50TUNx?=
 =?utf-8?B?ZitOc0o5dC9jMDIrRDhHa0t3REovbkRNUVhUNkxLaW1ubzJMbWUzY1l0QUFS?=
 =?utf-8?B?NFdPZWl6azBsUE1xeVVsSzlKWHRhWW14NEc4YklCeEpvMFl5OXc0RURMMjFj?=
 =?utf-8?B?dFRyY2pVSVRheEhpN2JpMjRIMVRQOWFiREZBSFpwdXFqMktTMXNZaVkxbCtF?=
 =?utf-8?B?UTNVRHh3SWRTVFRrV0RTWG9vYWFUa2lhb3B6VkwyTUxtd3R3SWFBUlNkQkpW?=
 =?utf-8?B?ZzJ1WUZqY0tWTGpYcHBEbFlLT2c0VS91Sm14T2R6Uy9mRS9vc3hlcm9xYndP?=
 =?utf-8?B?ajBmOTRKdGhIOHZtak9jRkh2YXpjMzZMYWhlU0RWVG5FOHZxZ0lLQURTUVlF?=
 =?utf-8?B?b2tkelFhaXFQUmNGNHpGV3ZiMkM3ME5rY21wWWtEbmJFd1U0NmZqUGhJQkNS?=
 =?utf-8?B?ajE3QVlPYlBmRnQvNnNqT0JxL3k2N1Z3Z1hRQ3QzWG1vVFk4Qnp2Yy90d1Y0?=
 =?utf-8?B?ZDJRNEw5aWJPYU5POGpYU3IvcFpBZkZ0ZjB3Tm1ndU8rcmlZcnBldm80TFAz?=
 =?utf-8?B?Nk9TNVBudlNIMVJPVlFoZ3B4anhLeHFBMFZLeklJZTBjRVp5ZDVmdGd1YkZj?=
 =?utf-8?B?RTZCdnJJR1FmUTV0ZE9RRTZoUFloNTFZNy8zRFBkTTQzU0dyNldyb0tuZE93?=
 =?utf-8?B?eU1tbDZ3MkRXbC9nNXp5dU5ZWExibndmQlJ5NGR0QXpDaytzeHRWMnpYZldC?=
 =?utf-8?B?Wklsb2YrN0x4Z29TbnU5VXJOeUJNTVFmRFJ2MVhSYU1WalQvUys3WUlQNUp6?=
 =?utf-8?B?dzc4SkdWRi93N0cwNjdaVXhQUXNhZW9YakZQSTk5TitKTEpiQ0xDcWtUQ1dU?=
 =?utf-8?B?c2crSUdVRFRPamtWYU9mbGFHbW5BZjFDWVV3cldzM1BMUHp3Mkh3Z0xWVVZr?=
 =?utf-8?B?Mm1NUE0xdndsaFpwVHVaekw1ejFHZlVXUGRCK2FIanVia2wrb1RldkRmUXVy?=
 =?utf-8?Q?46PkrLfT3bpPVxEi9lbJAoL9W?=
Content-Type: text/plain; charset="utf-8"
Content-ID: <CB2F968B85DE274D841C826AC1B354E2@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: f5569825-ad5f-4b14-c2e3-08db974395f9
X-MS-Exchange-CrossTenant-originalarrivaltime: 07 Aug 2023 12:41:13.7358
 (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: Id5v1IQc1WQPQO59zS/nl4050ic+uQRuS9tkFogYwXFBxywSgQIP2G+1K2Dq2z5pwej13y2dlZfZVFjFNjB6Xw==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR11MB5641
X-OriginatorOrg: intel.com
X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,
        DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,
        RCVD_IN_DNSWL_BLOCKED,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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