From nobody Mon Nov 25 06:25:20 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; arc=pass (i=1 dmarc=pass fromdomain=amd.com); dmarc=pass(p=quarantine dis=none) header.from=amd.com ARC-Seal: i=2; a=rsa-sha256; t=1717068230; cv=pass; d=zohomail.com; s=zohoarc; b=klf25xCfPLda4n2wULgSZM9px7STZTI+SDahQInrFqkQPfnssE4qgRg5QcmT68j6oWpzxBwvug2NZ9VPNtiq3WdFGSyy48oQVCr1oLG20Dcl2+i4QeHqIC2++Z1L6uSknVjnsbbXMWyy/T5m6pqShYGBAazqy4tyzU9zp242AIA= ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1717068230; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=+AsKJ/rgkkCDkjUvL6JMGrlId+MVOcgn7iEWTgFrJeo=; b=g5OrW9joHaIEkLaYORhUQ3ZpX/ZBnmW63S/jDq+xFVe+F49TPP2k6oqep3HsGfO5/Q8npPJviPATfsnjl3zXIafAogzLFE/VGPLbq91aAhHUBTe5foPkzC0ZFmIbl0zuMyBs2jMrQUgWF0FwiGlgMUStAqTTIvAOIX+McFB/NpM= ARC-Authentication-Results: i=2; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; arc=pass (i=1 dmarc=pass fromdomain=amd.com); dmarc=pass header.from= (p=quarantine dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1717068230701146.7335880395981; Thu, 30 May 2024 04:23:50 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sCdmM-0005z6-Ea; Thu, 30 May 2024 07:17:06 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sCdmK-0005ww-1k for qemu-devel@nongnu.org; Thu, 30 May 2024 07:17:04 -0400 Received: from mail-bn1nam02on20600.outbound.protection.outlook.com ([2a01:111:f403:2407::600] helo=NAM02-BN1-obe.outbound.protection.outlook.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sCdmE-0001RS-T6 for qemu-devel@nongnu.org; Thu, 30 May 2024 07:17:03 -0400 Received: from BN1PR14CA0007.namprd14.prod.outlook.com (2603:10b6:408:e3::12) by IA1PR12MB6138.namprd12.prod.outlook.com (2603:10b6:208:3ea::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7611.29; Thu, 30 May 2024 11:16:55 +0000 Received: from BN3PEPF0000B073.namprd04.prod.outlook.com (2603:10b6:408:e3:cafe::94) by BN1PR14CA0007.outlook.office365.com (2603:10b6:408:e3::12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7633.21 via Frontend Transport; Thu, 30 May 2024 11:16:55 +0000 Received: from SATLEXMB04.amd.com (165.204.84.17) by BN3PEPF0000B073.mail.protection.outlook.com (10.167.243.118) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.7633.15 via Frontend Transport; Thu, 30 May 2024 11:16:55 +0000 Received: from SATLEXMB06.amd.com (10.181.40.147) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Thu, 30 May 2024 06:16:55 -0500 Received: from SATLEXMB04.amd.com (10.181.40.145) by SATLEXMB06.amd.com (10.181.40.147) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Thu, 30 May 2024 06:16:55 -0500 Received: from pankaj-M75q.amd.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server id 15.1.2507.35 via Frontend Transport; Thu, 30 May 2024 06:16:54 -0500 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=fSzBCIsil9SHOHRU93RJmulD0zkSk2HgBz7j3mcWevowwczEMpZ/+kemd0B3iQCgrALPEDUnI3leS+CG8mInGTEuSJ6r18cPfOAsWn1Axi++Oeh0VYJ+BpJD3zAXUi94+GpXcj+fxCG/aXaLNNxTOOBFAifcEQIDwyfPQZwWJ8FgdxBJcBT660S6aboFwY6bSO7VuL95VbzdEju43SPfJHf+MbJ9nEfwsBcccyUyywxblG5O9iWAK/ugcMhmdbulovJvRwGB4qCeDUsgk7jiWsUAYF8SPRJ9hI8Uj10zlqF4X5MziCRyHr0ZmHXLQU6beWk23L1x+GR9vCVkXgEToQ== 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=+AsKJ/rgkkCDkjUvL6JMGrlId+MVOcgn7iEWTgFrJeo=; b=YTXRWw51uW2tUD4G1+lgornRfaEbzS+YLSC4djn0X5x4oxs/7Za45JaLaoaAUxht9rLFuAFpXFTxmviVehz271OIDf4NmrdDXr8aaeE2UUY2oEughwHLaTH+PbD9FsujjU91D2nEg7pNawsP6XF8Z9YiwZbLafMb9/Zj4v6nlxUYrtwAzeNEyEnQi1Q7TN/m4TuZnqSEqudQUegqArVFQJ+GY+HUJcel8Dz+bC6xjl41StuNyGWNfrvzi8WwL+XaxFPfoCw7sOJ39NwIzNfqtrQnPz4W9Xxj+ktWdMOD+fN3IgtCqbgClVFiEYv9+qiTHhN8L4akD9/fbmX9egjzDQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=nongnu.org smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=+AsKJ/rgkkCDkjUvL6JMGrlId+MVOcgn7iEWTgFrJeo=; b=ecg5kFXktMShrHUJxoapTgNyFjG/CrjXp5kQVzw2DUat+Eq2Hc2jP9OJOPMnZ0Fd2byRcyVDwBJBZlLn04xpPxg2GwuqrblkKX2HupB2jhv2z36VolCYvTOeTSRCgH8/gTQFI51HQzcBmuBS6tUhrbc0apHqIk7K3OdytJ5S2Ic= X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C From: Pankaj Gupta To: CC: , , , , , , , , , , , Subject: [PATCH v4 17/31] i386/sev: Set CPU state to protected once SNP guest payload is finalized Date: Thu, 30 May 2024 06:16:29 -0500 Message-ID: <20240530111643.1091816-18-pankaj.gupta@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240530111643.1091816-1-pankaj.gupta@amd.com> References: <20240530111643.1091816-1-pankaj.gupta@amd.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN3PEPF0000B073:EE_|IA1PR12MB6138:EE_ X-MS-Office365-Filtering-Correlation-Id: 6d4fcfdd-5688-4ebe-1e4c-08dc809a03df X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230031|1800799015|82310400017|376005|36860700004; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?DxorTXMApDvWirNZOeVL2LgXvZCO9EWNaMqu1PLJP3iCeug+lFTide30Tb+o?= =?us-ascii?Q?lPAJBjz6wTxepBBWfwY0pbn67qEIcx9/6dax9yjNIPtMnV5Ne3hPqZYs61c7?= =?us-ascii?Q?xVla2Ug1AJAvMC4XlvUkLTcZYhRfNxf3inO5d6u6QxYuGvbtxUf2koeflu6z?= =?us-ascii?Q?ASoGLZeW1kIhJXtWKMpITYwFZs6stI6UgtlSGkotG83m0KcwQeUtuCXzi9da?= =?us-ascii?Q?H15wGm/urAIfJZeLjfaQRf6Msf+12bL6JjkCP0YvMgFJ0C3YMd0IjhRO2EME?= =?us-ascii?Q?LWgH/mDpWxUxFzZFKgr4q23lXyPO7zQUrEIIt/O3jlKCk8fAHzaSNojxFCbn?= =?us-ascii?Q?wKO1dctTaDSxv44SS2KtOxoe1mr0uzerMzGXIwGRpkGYdAI20BQrrvIA4MJD?= =?us-ascii?Q?14wP6CrK3G5fZ6s2MVUAbk8W3MdhPODadAz35bWRcPzV65BzgVWWJMl1u5eA?= =?us-ascii?Q?pvrjojhEYwxmLPVK340vUiJbtFh9lvaO1O5GXfEBTidnsWjjvn1hwH+WOOKJ?= =?us-ascii?Q?GE/KI4uA2RPv/OYIDplzBTIgD2skRRxmOjpSf37ZnLOvD8VouNDjbLzwq4+r?= =?us-ascii?Q?Dczg5vtCIkrJ6AcD9XLFl93Yp7jb5Qkedg9tdr+cDRCnrhD+qGObq8DfnzdX?= =?us-ascii?Q?Mw5/po556NgCIqZUiVktiMQfpyMj9cF16tVXhpOQyZOYZhyKPsj/di3SccTA?= =?us-ascii?Q?frL3Z3iKWVbptUhH2X2G1H803phqRIIZvOkHji7bgZwk+09EPWYKhQcLxGmg?= =?us-ascii?Q?sQSjrwEEEQj9vEes7ZlFf+rXFHpyzISEEDhFKuE1XJutyWbxIGo0Fb1ISah9?= =?us-ascii?Q?mhnW95K3bMo8qQ7wfO8e9Oz4MuAE3brpYxXyOIhd4vV+p1JcvxIV1LuyAiQ2?= =?us-ascii?Q?9HyWSqWkfOVCAaQlGIXNuqk7UBieGtJcVM1fHc8pP7Y2OURPpLLrCWNfTKJi?= =?us-ascii?Q?Lf8UI7OdEoXJR15aruYrzdSPw1cjqTDoZvpqv1SKy9NIPTV+YZU0z4O4BV7M?= =?us-ascii?Q?Hh2Jgn5ws1mwDLAXNKq6qaBdmgtJ0WHaTwUTu3iW6SwzlcFURHcqg1UHCDrX?= =?us-ascii?Q?zT1cG97wBFujwyvivi9LK6DikQa/oNVUXlwG4fDnYlEfbLtweMTFuX5hOiwU?= =?us-ascii?Q?kamcblcO3BMmKJewS0eqWdmmgXzZJCx4L+O93tGfHBg7Lh6+0Hl6AbFNVBmV?= =?us-ascii?Q?GqJEYoiSZYysKdX4tze+rVeHWfQ8qj7s9cKFHVQ+0igf/rbHV4yhirxOafoQ?= =?us-ascii?Q?fvm+PbwxQXK1t3azQmyNBLc3r10R0YE8NQvbSeWYeiTuyGCRSHxTKy56eL/p?= =?us-ascii?Q?/LUKq1By48RPWglP/VqPZdL2v2s8UVDqnCrnfxZ2TaaZTAiL+4x0Z/f6GmRf?= =?us-ascii?Q?YL16OMjvS0qaj70lBP1AMTC/P5eI?= X-Forefront-Antispam-Report: CIP:165.204.84.17; CTRY:US; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:SATLEXMB04.amd.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230031)(1800799015)(82310400017)(376005)(36860700004); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 May 2024 11:16:55.7571 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 6d4fcfdd-5688-4ebe-1e4c-08dc809a03df X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BN3PEPF0000B073.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA1PR12MB6138 Received-SPF: permerror client-ip=2a01:111:f403:2407::600; envelope-from=Pankaj.Gupta@amd.com; helo=NAM02-BN1-obe.outbound.protection.outlook.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.085, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @amd.com) X-ZM-MESSAGEID: 1717068231825100003 Content-Type: text/plain; charset="utf-8" From: Michael Roth Once KVM_SNP_LAUNCH_FINISH is called the vCPU state is copied into the vCPU's VMSA page and measured/encrypted. Any attempt to read/write CPU state afterward will only be acting on the initial data and so are effectively no-ops. Set the vCPU state to protected at this point so that QEMU don't continue trying to re-sync vCPU data during guest runtime. Signed-off-by: Michael Roth Signed-off-by: Pankaj Gupta --- target/i386/sev.c | 1 + 1 file changed, 1 insertion(+) diff --git a/target/i386/sev.c b/target/i386/sev.c index cd47c195cd..2ca9a86bf3 100644 --- a/target/i386/sev.c +++ b/target/i386/sev.c @@ -1011,6 +1011,7 @@ sev_snp_launch_finish(SevCommonState *sev_common) exit(1); } =20 + kvm_mark_guest_state_protected(); sev_set_guest_state(sev_common, SEV_STATE_RUNNING); =20 /* add migration blocker */ --=20 2.34.1