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:     "kirill.shutemov@linux.intel.com" <kirill.shutemov@linux.intel.com>
CC:     "bsingharora@gmail.com" <bsingharora@gmail.com>,
        "hpa@zytor.com" <hpa@zytor.com>,
        "Syromiatnikov, Eugene" <esyr@redhat.com>,
        "peterz@infradead.org" <peterz@infradead.org>,
        "rdunlap@infradead.org" <rdunlap@infradead.org>,
        "keescook@chromium.org" <keescook@chromium.org>,
        "Yu, Yu-cheng" <yu-cheng.yu@intel.com>,
        "dave.hansen@linux.intel.com" <dave.hansen@linux.intel.com>,
        "Eranian, Stephane" <eranian@google.com>,
        "linux-mm@kvack.org" <linux-mm@kvack.org>,
        "fweimer@redhat.com" <fweimer@redhat.com>,
        "nadav.amit@gmail.com" <nadav.amit@gmail.com>,
        "jannh@google.com" <jannh@google.com>,
        "dethoma@microsoft.com" <dethoma@microsoft.com>,
        "linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>,
        "kcc@google.com" <kcc@google.com>, "bp@alien8.de" <bp@alien8.de>,
        "oleg@redhat.com" <oleg@redhat.com>,
        "hjl.tools@gmail.com" <hjl.tools@gmail.com>,
        "Yang, Weijiang" <weijiang.yang@intel.com>,
        "Lutomirski, Andy" <luto@kernel.org>,
        "pavel@ucw.cz" <pavel@ucw.cz>, "arnd@arndb.de" <arnd@arndb.de>,
        "Moreira, Joao" <joao.moreira@intel.com>,
        "tglx@linutronix.de" <tglx@linutronix.de>,
        "mike.kravetz@oracle.com" <mike.kravetz@oracle.com>,
        "x86@kernel.org" <x86@kernel.org>,
        "linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
        "jamorris@linux.microsoft.com" <jamorris@linux.microsoft.com>,
        "john.allen@amd.com" <john.allen@amd.com>,
        "rppt@kernel.org" <rppt@kernel.org>,
        "mingo@redhat.com" <mingo@redhat.com>,
        "Shankar, Ravi V" <ravi.v.shankar@intel.com>,
        "corbet@lwn.net" <corbet@lwn.net>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "linux-api@vger.kernel.org" <linux-api@vger.kernel.org>,
        "gorcunov@gmail.com" <gorcunov@gmail.com>
Subject: Re: [PATCH v2 14/39] mm: Introduce VM_SHADOW_STACK for shadow stack
 memory
Thread-Topic: [PATCH v2 14/39] mm: Introduce VM_SHADOW_STACK for shadow stack
 memory
Thread-Index: AQHY1FMbbqaAdie2YkOM3C+pk0yIUK3898CAgABwSQA=
Date:   Tue, 4 Oct 2022 00:29:21 +0000
Message-ID: <d09e952d8ae696f687f0787dfeb7be7699c02913.camel@intel.com>
References: <20220929222936.14584-1-rick.p.edgecombe@intel.com>
         <20220929222936.14584-15-rick.p.edgecombe@intel.com>
         <20221003174727.vvposwdd4fmmi3hw@box.shutemov.name>
In-Reply-To: <20221003174727.vvposwdd4fmmi3hw@box.shutemov.name>
Accept-Language: en-US
Content-Language: en-US
x-ms-exchange-antispam-messagedata-chunkcount: 1
x-ms-exchange-antispam-messagedata-0: =?utf-8?B?WGVCOHkrVUs5clpoVVA2TmQ0RHlCWHZxc0R3L3lLbVNmTmZ3bVM5NVUzUkxK?=
 =?utf-8?B?dkErZnlPeEc5STF2SzBjdUo2djNuVXRXSEZJNU92UFlHYTJac29VREx0VXpP?=
 =?utf-8?B?UnV5eklwTXFhVWJubVliNGJKdk01VUd2ekVlVjdFekNJa0lZazBUZEFKK1lR?=
 =?utf-8?B?N0I2TUFnNkRUbm9mY3RmNFZQTy9BQmRsamRhYWpmek0zM29qeVFnNzNzZUZR?=
 =?utf-8?B?MHU1QnJKaUdYRFIxYTBIU3JjR2lkdVZ5dm4wTTRMNkVEdG5tYmhPRjRxUkVO?=
 =?utf-8?B?d0hFN2ZSa2Z1SEJLK2dxZmZRZlEzUVlxcklrV3MyQWVyOWdKdzRWREFtRGpJ?=
 =?utf-8?B?aldTUjNGeWtBOVlTempBZytJMXdSc0F3cENBcERsWS94WU9OMmJWWUNDMUNy?=
 =?utf-8?B?NnNjRUljMlJ1bGs4UjBoUkswbHlTUHBvSzBmdzUyQjRMVXBPQ0ZXYWZKVkNE?=
 =?utf-8?B?L3pEL084UTJldk5mOEswdFM2ZStIeGtUUTNkQXJDOWdta0lXZnJMMlBBdXk1?=
 =?utf-8?B?bmduWUxVMlJMWk1MZTQrTTJMUStQVkxpOUNjQjFmc2ozK0VDMlN5TFVFQVRn?=
 =?utf-8?B?QzlWRTR5TThxMG5vWGRtWUlZNDdGWmpTKzJidWZkYld2WUhHWDkzdkVTSlll?=
 =?utf-8?B?Uzk5Y3VkUXpobDYranZmcWRyd2M5V0QrKzAyQjMxSTMrQVRJMlo4RWs1a0JR?=
 =?utf-8?B?ZHMvcmNUdDhoTi9oTUo4R0JjRFV0QTErOGk1dkFiQlBhTGJWT2J4VUtCYkxs?=
 =?utf-8?B?S0xzSW5Jdk11ZkY4dEREV0RZS2JWUWtiMTZrR0YwQ1ByK2JIY3U2b0N0bEZV?=
 =?utf-8?B?RDB3RkNlbEVLOUpyZFF6OWhZK1VtalliTlJEbzZ6VGRBNEQ2OUZsSGdNL0dj?=
 =?utf-8?B?eGlUZ0lyUFptZXZYK2VsdUgvWTNUS3E2dElmWWdNdzR5MkFBejQrQVRlcUdy?=
 =?utf-8?B?YktBcTFTckYra3BTSzNwYXBlOU03TDlISXJtd1ZGUGdSZHZSZFRGSEd2VVdy?=
 =?utf-8?B?dUo2OXFGRittTXkrckNNY2FCdVFQenk3QWtWUGtidGYxU3dGZVFCd2lsM3Vs?=
 =?utf-8?B?SmN6OUVSR1U4VW8xOWJrYkxhOWpBWFJxY0VFb3VLZ2Y0dDY3amhMNHRFd0dN?=
 =?utf-8?B?cW5jVGFSb1Y0OGUyekd6eE04VXBvTlpGb0wvcXp2c0ExZk5iWnF0T1k1aytp?=
 =?utf-8?B?YUxpdGhnZ0d0WXpuUnZCNmE0bHB2SHpKMU1oMGl0RW9kRm9BSG1VMFpmY1hQ?=
 =?utf-8?B?WUxSWUFVNTNUMk9oMzc3d2lYS1pkZzUyek1uY3JGMDFWRTBJMDBFeWtwWEtU?=
 =?utf-8?B?Vno3c2F5TWVXZVBKdTNJZFBVUTBwTnBQTzFqUTJxa2c0UmFLa3JCOUp5S3hP?=
 =?utf-8?B?dStJbnJjVTd0ZVhtdm0wb3FjRU5ZOTMrTUliLzRJNTd3b2Jtd0FKVHorNlQ3?=
 =?utf-8?B?WmxlaGNEYWpqeWlhRkM2d3hSVklPdlFmcFhlWkJMdkNHWmh4ZEs2S25KZ2h5?=
 =?utf-8?B?Nnl4M29rdTBDWWo4Zk55cVgwOXc2TngvR3RpRSs2YzBkRG5kRnR0dHF1MnlM?=
 =?utf-8?B?SjgyZUZZS2JiRzZ6Ymg2RXc0d2lHbmwzRm1rekRhSnBySXVmSVlJdDgxWDhP?=
 =?utf-8?B?MzhrSmp0ME5neFZkUFlsclhBbHhWZnIxWTB0cG9yaUIvMDVLOWQ5eUVhTXlp?=
 =?utf-8?B?a0VZQWY5ZnpyT1JMU3EybHRieVRRL05YeTZ4MzB6KzBTTy9vRUE3eDNTY2Fa?=
 =?utf-8?B?b0MrNU54aDR5LzdmNlF3ditsNnhjbVgyL3BkSjliUWNNMGtuZ0tKMnkwTVdB?=
 =?utf-8?B?NGtFTTVkb3B6elR4ZnQzYXNxUHBRWGN6NUxUeEJPVlE4ekpUci9jcFU2QU8r?=
 =?utf-8?B?d21PdmMwNWhmLyt6SFMyWUYxOXQ3dTUrT3N6SXQ0dTVjUFh6a1pNeXB0ZFoy?=
 =?utf-8?B?bllyZG9HRzR3dCtiMjJZYnNPNFdvbEt2UG5uN0JvMS9Cbm81aGh3MG5TTEVJ?=
 =?utf-8?B?aWx1bTR2N0dSTllpcUsvWURKNG5Eb0Y5NHF1YW5ZaDVXUGY0cjFIZmhmK2Fu?=
 =?utf-8?B?T25sVkkvRHkvbDFuNEpSSFNpT2hqaXNFWERVTHVmNXppTURNTCsxYzdhQkZs?=
 =?utf-8?B?a2F6TGhKWHo2dXNwSXRqS21QQkJPL3JKQWNiSjE0Tzh0Z2hPUjFpTFA2VHlF?=
 =?utf-8?Q?e/Vuc2+5pgCVkZpX2JmJdNg=3D?=
Content-Type: text/plain; charset="utf-8"
Content-ID: <1AE133222299FB4E87A11F939B3EE146@namprd11.prod.outlook.com>
Content-Transfer-Encoding: base64
MIME-Version: 1.0
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: MWHPR11MB1392.namprd11.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 94737637-854b-4d68-4a7e-08daa59f7b46
X-MS-Exchange-CrossTenant-originalarrivaltime: 04 Oct 2022 00:29:21.2777
 (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: STeqmTcUBzl0PAiX6kxVkdrmShT/Q5Yf98DWE/cyLQ5I7N37uI7GEtdHt2ffSKN23T1DTkPXlpfEwzkwcD5VkAJg3uWGHEccYIKOKQl+lr8=
X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR11MB6574
X-OriginatorOrg: intel.com
X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,
        DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI,
        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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