From patchwork Thu Jun 20 18:03:18 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Brijesh Singh X-Patchwork-Id: 1119678 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=amd.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=amdcloud.onmicrosoft.com header.i=@amdcloud.onmicrosoft.com header.b="tXdiyIaA"; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 45V9WF648dz9sCJ for ; Fri, 21 Jun 2019 04:36:07 +1000 (AEST) Received: from localhost ([::1]:52096 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1he1uj-0003xt-IZ for incoming@patchwork.ozlabs.org; Thu, 20 Jun 2019 14:36:01 -0400 Received: from eggs.gnu.org ([209.51.188.92]:43355) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1he1cZ-0005MN-1l for qemu-devel@nongnu.org; Thu, 20 Jun 2019 14:17:17 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1he1PB-0003vb-2i for qemu-devel@nongnu.org; Thu, 20 Jun 2019 14:03:47 -0400 Received: from mail-eopbgr720059.outbound.protection.outlook.com ([40.107.72.59]:35920 helo=NAM05-CO1-obe.outbound.protection.outlook.com) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1he1PA-0003qK-RN for qemu-devel@nongnu.org; Thu, 20 Jun 2019 14:03:24 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amdcloud.onmicrosoft.com; s=selector1-amdcloud-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=cbpJByXe8UVRoPZUY5MWG+IL03tk3wsG/xLAPkJgKkQ=; b=tXdiyIaABtQdKw6uNgoBfm8GO3Tmx8kK3nd12frpqITnhZbg+yx3L23KNDP80fk1vXoQOZCuWGSx9s46pqhIITlIQz4rANHYdAnrLa0OWXMDtmG0zHZTNB1+VGwCJ+m+KxjzIG3Yhxoezr3O4Bkk+yUWTp2bdbf9APuOngS6ANc= Received: from DM6PR12MB2682.namprd12.prod.outlook.com (20.176.116.31) by DM6PR12MB3260.namprd12.prod.outlook.com (20.179.105.216) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1987.15; Thu, 20 Jun 2019 18:03:21 +0000 Received: from DM6PR12MB2682.namprd12.prod.outlook.com ([fe80::b9c1:b235:fff3:dba2]) by DM6PR12MB2682.namprd12.prod.outlook.com ([fe80::b9c1:b235:fff3:dba2%6]) with mapi id 15.20.1987.014; Thu, 20 Jun 2019 18:03:21 +0000 From: "Singh, Brijesh" To: "qemu-devel@nongnu.org" Thread-Topic: [RFC PATCH v1 07/12] target/i386: sev: do not create launch context for an incoming guest Thread-Index: AQHVJ5Jwr64n84eiuEmsG1k/ZeRP+g== Date: Thu, 20 Jun 2019 18:03:18 +0000 Message-ID: <20190620180247.8825-8-brijesh.singh@amd.com> References: <20190620180247.8825-1-brijesh.singh@amd.com> In-Reply-To: <20190620180247.8825-1-brijesh.singh@amd.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: DM5PR16CA0025.namprd16.prod.outlook.com (2603:10b6:4:15::11) To DM6PR12MB2682.namprd12.prod.outlook.com (2603:10b6:5:4a::31) authentication-results: spf=none (sender IP is ) smtp.mailfrom=brijesh.singh@amd.com; x-ms-exchange-messagesentrepresentingtype: 1 x-mailer: git-send-email 2.17.1 x-originating-ip: [165.204.77.1] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 6b758ffe-87fb-4739-1534-08d6f5a992ef x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0; PCL:0; RULEID:(2390118)(7020095)(4652040)(8989299)(5600148)(711020)(4605104)(1401327)(4618075)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(2017052603328)(7193020); SRVR:DM6PR12MB3260; x-ms-traffictypediagnostic: DM6PR12MB3260: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:595; x-forefront-prvs: 0074BBE012 x-forefront-antispam-report: SFV:NSPM; SFS:(10009020)(366004)(396003)(376002)(136003)(39860400002)(346002)(199004)(189003)(2351001)(53936002)(486006)(2616005)(11346002)(81156014)(8676002)(6436002)(446003)(5640700003)(50226002)(6512007)(476003)(102836004)(6916009)(99286004)(2501003)(6486002)(76176011)(8936002)(52116002)(81166006)(316002)(186003)(6506007)(26005)(478600001)(256004)(3846002)(2906002)(386003)(66066001)(14454004)(54906003)(6116002)(305945005)(25786009)(1076003)(66946007)(66556008)(73956011)(64756008)(66446008)(71190400001)(71200400001)(4744005)(68736007)(36756003)(6666004)(66476007)(5660300002)(7736002)(86362001)(4326008); DIR:OUT; SFP:1101; SCL:1; SRVR:DM6PR12MB3260; H:DM6PR12MB2682.namprd12.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; received-spf: None (protection.outlook.com: amd.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: gZ9PfAcP/H0jaHvAhsoQbNi48oMIBwYi1Gl6igBrFoMBBo1sGFgrXjDuOTCNN46Jc+YYZvRm+r1+oGgZkae3RRfmXUYNhH4rRE43WtWfkbSR6m1bd0q1PABR9qqeYR5vQpHv2ekgt079bHEcuEeDd1v0uAo/N/tUFZI+YfHqQkQfpUZBJYcNNf9a+YPC8L45bnl6zax8QOSphVmsjd0eA5RRhc0i7ZNCVuxshLaJYNN962dfjyWBhT0nZJZnJCttZRWQj2O9PwxRbik84dRS/Qsx9qJc2Dhjc+QGZqKpkW5FYUoHK9VFof9DecZHbQUAmZ3Ld/q8e5hmIHb2sZcgYMkzxJCQk/Rg4cdXvKRqWF8hDvFC1zBVLt2qvsp7FE90VZAzcTcjYKcI4l8LDBamxQOj/8KqJkNfW7ZwTGqwlZk= MIME-Version: 1.0 X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: 6b758ffe-87fb-4739-1534-08d6f5a992ef X-MS-Exchange-CrossTenant-originalarrivaltime: 20 Jun 2019 18:03:18.5922 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: sbrijesh@amd.com X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB3260 X-detected-operating-system: by eggs.gnu.org: Windows 7 or 8 [fuzzy] X-Received-From: 40.107.72.59 Subject: [Qemu-devel] [RFC PATCH v1 07/12] target/i386: sev: do not create launch context for an incoming guest X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Lendacky, Thomas" , "Singh, Brijesh" , "kvm@vger.kernel.org" Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" The LAUNCH_START is used for creating an encryption context to encrypt newly created guest, for an incoming guest the RECEIVE_START should be used. Signed-off-by: Brijesh Singh --- target/i386/sev.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/target/i386/sev.c b/target/i386/sev.c index dd3814e25f..1b05fcf9a9 100644 --- a/target/i386/sev.c +++ b/target/i386/sev.c @@ -789,10 +789,16 @@ sev_guest_init(const char *id) goto err; } - ret = sev_launch_start(s); - if (ret) { - error_report("%s: failed to create encryption context", __func__); - goto err; + /* + * The LAUNCH context is used for new guest, if its an incoming guest + * then RECEIVE context will be created after the connection is established. + */ + if (!runstate_check(RUN_STATE_INMIGRATE)) { + ret = sev_launch_start(s); + if (ret) { + error_report("%s: failed to create encryption context", __func__); + goto err; + } } ram_block_notifier_add(&sev_ram_notifier);