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:     "jarkko@kernel.org" <jarkko@kernel.org>
CC:     "Lutomirski, Andy" <luto@kernel.org>,
        "Christopherson,, Sean" <seanjc@google.com>,
        "x86@kernel.org" <x86@kernel.org>,
        "dave.hansen@linux.intel.com" <dave.hansen@linux.intel.com>,
        "linux-sgx@vger.kernel.org" <linux-sgx@vger.kernel.org>,
        "hpa@zytor.com" <hpa@zytor.com>,
        "mingo@redhat.com" <mingo@redhat.com>,
        "tglx@linutronix.de" <tglx@linutronix.de>,
        "bp@alien8.de" <bp@alien8.de>,
        "haitao.huang@linux.intel.com" <haitao.huang@linux.intel.com>,
        "dave@sr71.net" <dave@sr71.net>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] [v2] x86/sgx: Allow enclaves to use Asynchrounous Exit
 Notification
Thread-Topic: [PATCH] [v2] x86/sgx: Allow enclaves to use Asynchrounous Exit
 Notification
Thread-Index: AQHYnGzh1nwOjOji802J3mkwYJ5zAa2V2ruAgAZYAICAC9k2AIAA95CAgAAOJ+CACw4RgA==
Date:   Thu, 18 Aug 2022 02:43:26 +0000
Message-ID: <997120b6df7d88512dff60cf8e4e05d512c7b89b.camel@intel.com>
References: <20220720191347.1343986-1-dave.hansen@linux.intel.com>
         <op.1p2k13ibwjvjmi@hhuan26-mobl1.mshome.net>
         <35d7254cafde24b722b167c6a3566592d903acd2.camel@intel.com>
         <f16af3f7887d26cde9073d443c1b796c945bc042.camel@intel.com>
         <YvRVZQKklqnbf9oQ@kernel.org>
         <BL1PR11MB59782DF6E7F3CD950FCA4319F7649@BL1PR11MB5978.namprd11.prod.outlook.com>
In-Reply-To: <BL1PR11MB59782DF6E7F3CD950FCA4319F7649@BL1PR11MB5978.namprd11.prod.outlook.com>
Accept-Language: en-US
Content-Language: en-US
user-agent: Evolution 3.44.4 (3.44.4-1.fc36) 
x-ms-exchange-antispam-messagedata-chunkcount: 1
x-ms-exchange-antispam-messagedata-0: =?utf-8?B?Ymw3L0s1NGhMN2MwUitEdGpZRVlRTUdnV0djOEprK0gyOWZGMWlPVi84MXFi?=
 =?utf-8?B?cHBNU0VFaXZDWnBydUsrZGFUWDBHbmNjekphRFp2YnA1VEVkbm9HTHVUcGtr?=
 =?utf-8?B?dkljR0Zlc1ZoemdFWDM3VGNub0kzK0k2NVdhTlUwRHBKb3JBS3AranBCREFQ?=
 =?utf-8?B?SFQ0WUdObEhBU0FMd0U2b2tSclZkZ25lTjZCSUE2TXZvRm1Ya0ZZVndUbnVB?=
 =?utf-8?B?SmNmYW4yQmNBcGZZekpERFlsRTE5Q0ZmVjVENzVnSm9mUVE0dEFTVmowd3g5?=
 =?utf-8?B?bENGdjZrK0dTQXVvSktoK0ZwMnpvQzhDWGcwQ3U0cXR5aVJXNWdTNkdmOXZP?=
 =?utf-8?B?MlY2eTNNR0IzTGVJVnhUdkJudjlYUmpNMGRsU0JPOERZUmVxaVIrbVZWc1pB?=
 =?utf-8?B?alhlcEh5d0F4eUlUbVYwRTc5RkZQUHM3ajdxc0RjK3NLMWZhUFYrcDlHeE04?=
 =?utf-8?B?Z09VcFJncVBLdXpRNmtRU2dUV3JOTlRzQ2V1VzI1OURzYXNtRHBOdHlvSW5w?=
 =?utf-8?B?QVR0aW1ZTUs0aDhkZkpwTDh2cjI1cHNTaTdDUEsrZkN5TmVockwzWm9ua1pS?=
 =?utf-8?B?ZGZjTGNLWTAzb2hDY3JBenZIdzNWNXYzMXdXL1ZiSzE4bk1wYjc3R2V1LzhR?=
 =?utf-8?B?eEVHdnRHWXRHUEtPaUpISElDQ0oxa3RtWkRkejRwYjBDUGdGbWxKMTFUeStu?=
 =?utf-8?B?MmtjRzczQVBlMGlET0VHZWxBQVU4WmlFYk5PT05IRi9NN255WHk0aGlxUGZ3?=
 =?utf-8?B?MXN6WnBYeWJ0Vk1GVG93OGpBOHFGTFdzU2VRalZtQ1BRNlJTMG83aU5hK3Js?=
 =?utf-8?B?bFlTeUdjN1R0ZE9OY0xBNVl5ZUlnQkQzNXV0Y2k0NTNYRWhVMkI0b3hXTUlz?=
 =?utf-8?B?am00VGV5MjNMVjBUZkQ1TDR1eklGZ2Mzb0pRdWV2amtOVjlIeW9BU1lvZmUx?=
 =?utf-8?B?ZG9JOUhHbkNJU0F5MmhUU0k1MnJ1bXlkZlFSWnp6RnJnMWxkdmNiRG1zOEFx?=
 =?utf-8?B?MS9DN1E3M3I1Rk5kbG9weHh5OEJDcG13VjlXcUtibkZzN09TWC9BRjM5M1R5?=
 =?utf-8?B?ZDM3aVB1dUd6V1IrNEpRRHNPRVJROEl1TVBROUtRb09aS1QwWDl3bTBYVUtJ?=
 =?utf-8?B?NHRvNWxTb3FLdlhEODFBUTNiOE5LNElPcEhVQjJDcWhOUmZNZnRHdFV5SUhX?=
 =?utf-8?B?b0dmQnAyQTc3LzdYUnBBa3g1bklsM204TW5rL2U0NEUxaUZHTW5nY1FTSCt3?=
 =?utf-8?B?QlIxZkNBQVcxUFJIR21EZjA2cStsL3R1cGJGaUxLazE1Qlc4dEZGOVpLMWMr?=
 =?utf-8?B?cVdrRlBHb0taUlVvUTRIdk91eWlQOTdCc3FLOVJHaHFQZ3haSDhxbjE5WUY0?=
 =?utf-8?B?ZVFVSG5haGY0ZUx2YnFKcHFCSjNZQ0RrZ0taRWRqK21URHJRTVdLNjU5cUoz?=
 =?utf-8?B?OFFhT3h1MitLYjZnc0ZjcU9ja3pZRmdqVWRYQWY1SlZvQmtOaHBVcU8rNnVi?=
 =?utf-8?B?U0dGSHN0QmR1VDNxRXUwN0JQNkRybGIyUjIzeDZldTY0S2VHR2FHdjRiV3Rt?=
 =?utf-8?B?VFVYa2hIR0U5aVF2ajdrNkRtRW9GRXJpeVYvckhHc2gxZnNydG5jVkpaZGRG?=
 =?utf-8?B?YWx6akU4cnl4Wm5PTmk3OWhuNHEzaGJlSGlZRVFEUkJNazVsc09LZDhVK0xp?=
 =?utf-8?B?c0M1VWFaNUJ5akVNKzFoOXBXT205aHV3Q3BYcDN0TUVqVEVGYmp0Nm96M0Jm?=
 =?utf-8?B?d0RoWlhobUJYWC9IOHA1bVZKcWloSUR4b0d2VytGdGtFKyt0eUQzdHI0Z2xn?=
 =?utf-8?B?dytmZkxBU3FmeTBvVXhURFF5TkwrRHVvKzJkeTZZQ1RnTGV5VjFLekV4MGxP?=
 =?utf-8?B?alpqZG02NHFOTzJybjNFUWtVUkJSRHZIZm1MMkt4UXRWWGxrakJQTTJPTzBw?=
 =?utf-8?B?YllCVUF2UmhmN0RMbkd2SGdyblNQd0s2aXZZQUlvRzRkbEdQMCszV1JzQkhm?=
 =?utf-8?B?SGgvdjlsd3d5T2RoTXdHWFAwNDNDWk5ZU1JWdjhLYm5HVjU4WTdyRVVScVFL?=
 =?utf-8?B?Ty9ubVUzajF3ZWQxLzExWFIydVducmZnOFFhN25XajlBZG5JSXNaYXRIVVYv?=
 =?utf-8?B?Q3FBcm1yWjhrMDZCSGZlOTRpVEtTYWN3U3kxYzllZWxPcFNJeEFmYkdUNGtL?=
 =?utf-8?B?SlE9PQ==?=
Content-Type: text/plain; charset="utf-8"
Content-ID: <9A8E9F4B36AC1E40AC30F0792672C522@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: 73eede9a-5054-48fe-c1f4-08da80c36d69
X-MS-Exchange-CrossTenant-originalarrivaltime: 18 Aug 2022 02:43:26.8815
 (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: S5WjRcAnuBl0gNqSy0HU2pmIC4Nqud7ai1EF4zYeuAGlMj/6wY0bKlgYoDf5LoesFIaMuZpyNtpNHdRpcwckpw==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY8PR11MB7035
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,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
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=