From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by mx.groups.io with SMTP id smtpd.web09.7972.1635224783922122840 for ; Mon, 25 Oct 2021 22:06:24 -0700 Authentication-Results: mx.groups.io; dkim=pass header.i=@intel.onmicrosoft.com header.s=selector2-intel-onmicrosoft-com header.b=u5MJBwDT; spf=pass (domain: intel.com, ip: 192.55.52.120, mailfrom: min.m.xu@intel.com) X-IronPort-AV: E=McAfee;i="6200,9189,10148"; a="228579750" X-IronPort-AV: E=Sophos;i="5.87,182,1631602800"; d="scan'208";a="228579750" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Oct 2021 22:06:23 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.87,182,1631602800"; d="scan'208";a="572233587" Received: from orsmsx606.amr.corp.intel.com ([10.22.229.19]) by FMSMGA003.fm.intel.com with ESMTP; 25 Oct 2021 22:06:23 -0700 Received: from orsmsx607.amr.corp.intel.com (10.22.229.20) by ORSMSX606.amr.corp.intel.com (10.22.229.19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2242.12; Mon, 25 Oct 2021 22:06:22 -0700 Received: from ORSEDG601.ED.cps.intel.com (10.7.248.6) by orsmsx607.amr.corp.intel.com (10.22.229.20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2242.12 via Frontend Transport; Mon, 25 Oct 2021 22:06:22 -0700 Received: from NAM12-BN8-obe.outbound.protection.outlook.com (104.47.55.175) by edgegateway.intel.com (134.134.137.102) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2242.12; Mon, 25 Oct 2021 22:06:22 -0700 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=Nob6Sk7TK4hHkgvGVyLWMCgTHPL3m62QLbUKNzeVZxjy0UAQHLGiANIwl3vL7n3y+/tNZx0qLssQ0GSzmY8KLEYRVtVPDbes+JF9r5fBIJcDF5lg3XyIX92q+d9m4It2xH1ArtecLUTGUcyj+1gMAKkSH2ysendV+aQV9hsIannBJPQH71X6Fizmz02IX0zlOd7Z0r8s/7jFRhzRGH3tSjCMDshp63u5sX+Qz1sLkdZQxGjJhywmatB1B87lRH5RVHn2u8nwNjo1wPm9TbER5oKtR/iTSzdtQdoK0nQC5ZRxSu3pvcWmo2PpUHknFwvGnrvnJQ3hyR3BkXbA0gzSkA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=DCVzTkLNAos6+4j5ptuD495YyzIHduamogojCtCxfBI=; b=iQgxgJX4ka3mddt8Vh6xGJbV+fMkH6qX4vfiruxjP1+DvQMqgeeyYSBnE9Q9+NEMWh4lL6m12BwtZp0dBF6mcPbw34FevfwjEo5tctouJdvI94/+pLDXeUux8dS3txPrmcl4acTGM2dxaj8YTUDzur1aKpPRI/p3bJrSw9yioVjRcavD0k/pNeZkGId0HgYbZ+qk8IBZFh4mk2U7oaU7KCfBplmIc1PXFVFP4xffZ0qhG6w1tUlFlfeVbd+t9ZsJgUIP4XLMYzCgYxmxDzCr9KKRHkQjDVWP7j8+FcYFijns0ecf3ETsctCnki1MNXLBxnL9/a318RsbXcWEbKf5Bw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=intel.com; dmarc=pass action=none header.from=intel.com; dkim=pass header.d=intel.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel.onmicrosoft.com; s=selector2-intel-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=DCVzTkLNAos6+4j5ptuD495YyzIHduamogojCtCxfBI=; b=u5MJBwDT48JU7Ocjw7OeTx2zrIK/T9tp392fqLVr7WO+KfiuCGFC0F9knXV4x32hIlogiDwP6tU4gpLqDYl2apwXJZwZ5v75/4CbWOZQAe0Rz/9OIjMogexk6hAHNROeMHmVm49MGAP6L9I4Q7JKoyOsyXF5WvVayM9V2VJi4nI= Received: from PH0PR11MB5064.namprd11.prod.outlook.com (2603:10b6:510:3b::15) by PH0PR11MB5189.namprd11.prod.outlook.com (2603:10b6:510:3d::23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4628.15; Tue, 26 Oct 2021 05:06:21 +0000 Received: from PH0PR11MB5064.namprd11.prod.outlook.com ([fe80::7deb:6c36:73c2:f0d4]) by PH0PR11MB5064.namprd11.prod.outlook.com ([fe80::7deb:6c36:73c2:f0d4%4]) with mapi id 15.20.4649.014; Tue, 26 Oct 2021 05:06:21 +0000 From: "Min Xu" To: "devel@edk2.groups.io" , "kraxel@redhat.com" CC: Brijesh Singh , Erdem Aktas , James Bottomley , "Yao, Jiewen" , Tom Lendacky , "Dong, Eric" , "Ni, Ray" , "Kumar, Rahul1" , "Xu, Min M" Subject: Re: [edk2-devel] [PATCH V2 12/28] UefiCpuPkg/CpuExceptionHandler: Add base support for the #VE exception Thread-Topic: [edk2-devel] [PATCH V2 12/28] UefiCpuPkg/CpuExceptionHandler: Add base support for the #VE exception Thread-Index: AQHXuZrEZaTymLGmdUC5iTq/+VuJ36vPND8AgBWluZA= Date: Tue, 26 Oct 2021 05:06:21 +0000 Message-ID: References: <24d3a351f21bff1a4b20490313d039e403b1453c.1633401643.git.min.m.xu@intel.com> <20211012102716.wr6bao42f5hviz5z@sirius.home.kraxel.org> In-Reply-To: <20211012102716.wr6bao42f5hviz5z@sirius.home.kraxel.org> Accept-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-product: dlpe-windows dlp-reaction: no-action dlp-version: 11.6.200.16 authentication-results: edk2.groups.io; dkim=none (message not signed) header.d=none;edk2.groups.io; dmarc=none action=none header.from=intel.com; x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 3a7728eb-769b-4f30-4482-08d9983e59ef x-ms-traffictypediagnostic: PH0PR11MB5189: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:8882; x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 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 x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PH0PR11MB5064.namprd11.prod.outlook.com;PTR:;CAT:NONE;SFS:(366004)(38100700002)(5660300002)(186003)(82960400001)(8676002)(71200400001)(316002)(6506007)(64756008)(2906002)(86362001)(122000001)(8936002)(66446008)(66556008)(66476007)(26005)(76116006)(66946007)(7696005)(9686003)(55016002)(107886003)(54906003)(110136005)(33656002)(83380400001)(52536014)(4326008)(4744005)(508600001)(38070700005);DIR:OUT;SFP:1102; x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?us-ascii?Q?0V+2Lr1Jw0/Irltr/Ee8t9m1j+WadURucoxCe4yRYThr76qn+CVP1iBcl9q0?= =?us-ascii?Q?rw+3dhFbKRIJnaDFOfKZY9X+mWGvZRezQgoLSIgy+/2+tH7azIHPKN6Ijwhj?= =?us-ascii?Q?B/nck+St3LHGIjvY0Q0FiRYs1LNJRdOr847f/eF/5Lb3wsWXfhXlUCU6vuQV?= =?us-ascii?Q?URXl3AeI6g/JkbqBqkEy/kQbAsZMgQQ9K1bhtDScfgVNLIirUo2SLzej2P5v?= =?us-ascii?Q?CfYHlvNLJ8LmoVfLfpDZHh2vMxdUSQCaWQ+j1o0ciXzS1m2f+PEXkIfcHXHG?= =?us-ascii?Q?f1sKAt5TG80xKp915iVWYhJdk1+PCAASPd/xi0iQQjGw0yDPEHI6wNycv5LD?= =?us-ascii?Q?0jdjI6Jn3GiALl96tsf75Xh042dlLmLhG09dboPjs6OWk0dE132kU/hn3S7D?= =?us-ascii?Q?DQBzZd4gkPEZCqrfCM0tvk6oaYpLWGaFM0kGW+msngJm9yTAOAut2SsiuJ1P?= =?us-ascii?Q?W1gVZsbAOsL4eUqPA0XbyEaAHp+PpSBpwRrjJAxXfxShiaa/ALrnpcqjcohh?= =?us-ascii?Q?y0K6dKM2EpuePaz0y1pkRvKV880d21FZ+IyhtTW3o1RLQscR2qQwXqo6C9u+?= =?us-ascii?Q?D6Uk0e880uIkp97/XmYnGrmt0fIm/lOPbsCdHoyDn0eKW89CYPisC5A3+nQU?= =?us-ascii?Q?ix5M6hHg7tzokGSaOtNVGxfCBiY58CYs/yA6NDGYBuwjuPNC0nsAwA25Qbv4?= =?us-ascii?Q?HsYTNt6x1f4NWnSvB6/DW1Tt+8Hco7gqp+MRJwYG1DTMvzwjzrhyX7m2FHW3?= =?us-ascii?Q?xRVPdvYyVWl7jtq4pHp3l4L5kQFnm91ZIPYEwVq3FYB7wkBsRROP1sKcj7IX?= =?us-ascii?Q?45jbQgk9W1ipka2wyub6cKSPeyPrJIs0rEPGdNGhJd5L5E0+dhbK9qrdz77w?= =?us-ascii?Q?ZvMo/+8J+oew4ftFwuCOTIvykUEMAg2pUNeM+rhkOVr0KuM4P896MgERy/DU?= =?us-ascii?Q?emgRf6qNFsOi+5L8YKTZzmm5QhFF5iKH2aCe8gqmcYRpPYJTMuT0P+y81aUx?= =?us-ascii?Q?C+HJWWnsjcdGuGp6dLLlMzF9GFKD1oOVYWzhr7z/U9BswBbM6+YVefDLa4Iy?= =?us-ascii?Q?NcVs44640QNK0izBr8faMAa0p7Kl6WLVmYYxP5BxYWvxK3hTGFWG8JVUJXHD?= =?us-ascii?Q?jN6TVyCI2M62+ylMx0LzvyX7evvT/nM8Wcm5vSyfHxf5cw2oW2Svs7uXb+Jm?= =?us-ascii?Q?hlmSwOJThYKmggbyFwsovZMpmqJrXU5ke1bqc19uMZVJIJ+Q3Uk5f11n8yCK?= =?us-ascii?Q?29RBMeuZkemsVwDXlSMYJ7MusoZdv4pY7W/ubY+UaIIYK4MYPm//a4/+Skue?= =?us-ascii?Q?h1uPbnkJOfXAJ9qagFultP7UXuuY6h9mJgMDyo6ND02FvoR1WDxZr9Ile2xV?= =?us-ascii?Q?p5mZHdlq2+3hEfmH0nj5VOVwFSFwQBmz8u5VMrS23JqDYG6XC4wg6KAO1E3s?= =?us-ascii?Q?1RkPOqnjiPB4jEhgrRXsJcj5MNEDJSlNnBMz4zea9Joxyd/SmzIXqB6a6708?= =?us-ascii?Q?fZ8pfZ3S6oRgUGr5aejGU1Vz507inapsg1wJmkzNkrUsmQ+skNK/QeeKV02S?= =?us-ascii?Q?X4ECKyeiuUGluMxulwqlnSwliIsd4hg5JOaKpu3yJEzy6rd5TQAQ49/KOUky?= =?us-ascii?Q?K2tqtkNhCgR/VpsGdqNrEUM=3D?= MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: PH0PR11MB5064.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 3a7728eb-769b-4f30-4482-08d9983e59ef X-MS-Exchange-CrossTenant-originalarrivaltime: 26 Oct 2021 05:06:21.1971 (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: hES3EAjlzrqJK3N9zLP2xWvDD5VniOO2mzg6+D9bzmcDJm/2QS+0+uMrJdwDE/AgluMxlIvOT3GZBB6Hpv5wtA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR11MB5189 Return-Path: min.m.xu@intel.com X-OriginatorOrg: intel.com Content-Language: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable On October 12, 2021 6:27 PM, Gerd Hoffmann wrote: > > + if (ExceptionType =3D=3D VE_EXCEPTION) { > > + EFI_STATUS Status; > > + // > > + // #VE needs to be handled immediately upon enabling exception han= dling > > + // and therefore can't use the RegisterCpuInterruptHandler() inter= face. >=20 > Can please you explain in more detail why this is the case? >=20 VE Exception may happen before a component registers exception. So it has t= o be implemented inside the exception lib. Thanks. Min