From patchwork Thu Mar 20 13:26:48 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tom Lendacky X-Patchwork-Id: 14023987 Received: from NAM12-BN8-obe.outbound.protection.outlook.com (mail-bn8nam12on2068.outbound.protection.outlook.com [40.107.237.68]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 95B7C2AE99; Thu, 20 Mar 2025 13:27:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.237.68 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742477234; cv=fail; b=o7VTIeW1XPeiEgKMZyTFfqirD8qQGI8uYuQ4kWhHjskxCm1vBdmzZuHy6RcCTrvolMUs9CZGkwhdHzNvDtfRFXU9t+6QwevtJt1rGSfcOhDr4QZagLrUKqunTV7Y68XP/6IJeRJK29Ib8Y8PgK12LtdTw16aVLchg6X1hP0PRA0= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742477234; c=relaxed/simple; bh=DbAbGZoH6uKpieJ96/MkgQzb+GTRVNYAvLCk3CoqRnQ=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=IJUvdpR3g5DYrasOGqcnBuyaMXzWFN9azRGpFXDJRrZ+0aSgmOdTH7Q3P7damphV/Vg3pEbTy/Mfs5i5CoDCe7Wi0ZZWwFsu+vcRS8unzUKFX8IddS1dFCSO3GTBLeRweIgLE/zDPfFCpzn7iPwYkwHbBZRRX9LytMa6iaPDcfc= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com; spf=fail smtp.mailfrom=amd.com; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b=HVnUvDCT; arc=fail smtp.client-ip=40.107.237.68 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=amd.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="HVnUvDCT" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=yP5wWxIbB1flBTfSwND2jMdgWDLaw8MygypKAq7g9jJ+Qfk1sN9NysmNyTZCqT9phFor6OPTjSaNxQaIBRLx2Tcjhvgz6V/yGEyYY1d7JVcAbdTlW8PUWW1S7oAQAOJDQ1V8mQ9bheuRLp1uHrXlDgQ9ad60lUf0KbjUOdKs3Sj4mOjmorNJhRWmmrSZWv7z1OLJ4lvKH33mpL7xbnEQ/nDwm8NwjWWpuOt1idn5hNuzxgYMFCRe6rOhQmkN5FQv4TIpmqrFuav8uX4v1ipYA+tazQoRqtwkzgSU9//HoxNmaE9bezvgYQfaknn4GMQOAnET0q/NwRlW9i9UqyWajA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; 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=hmQC4DoJnuw2BVPiRUqaw1/QRoMcwM8sbwV7Ukc4n5U=; b=L7Znt61uZ2YHbnnB42JYMMemDT0TZMG+rPDX1wZJW0BNRRe5zcmD239pjy+guMVLfc8jK2pztBdfZO2gdpu79ef6nQQdR4GmUPBUvlTsCVROeSBUWvMo4h7KqbHl1RrB95QjivwmESUJwsisOONmlhx+BIzy45aMqIjpj6UqmT2cgxH8qKLyuwPBVGdzoVOGGsiCqbD7UxIiQg+K91ni2lVfvgTND+UmDLyuCfwubhpAhnvQLIcmilYTOtS3pL5X6FMNlcwkb9v5Din5YsUGs0lnnYEEq5bfXMzUgaYKt2AqDVzwsdyrYIy1x2iYhTkMBu1Rvuks3pa+lbjTtCAqHA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=vger.kernel.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=hmQC4DoJnuw2BVPiRUqaw1/QRoMcwM8sbwV7Ukc4n5U=; b=HVnUvDCTrZCweIf59CuJG4079u8KzdidlFZpvD5+hRKtBy7mN0nnqmi0x+KNmJjaaBYtOs1tGQsE7TaQSoTt9fqzR1UPR8jID+ESfBIn4/skDnbgZOgvuL06ompj3sj2CvIC0QQEAx0GDMkVZpyo4RtGBrIut2Nuf1b0ssg3K5A= Received: from BN9PR03CA0366.namprd03.prod.outlook.com (2603:10b6:408:f7::11) by BL1PR12MB5876.namprd12.prod.outlook.com (2603:10b6:208:398::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8534.33; Thu, 20 Mar 2025 13:27:07 +0000 Received: from BL02EPF00021F69.namprd02.prod.outlook.com (2603:10b6:408:f7:cafe::14) by BN9PR03CA0366.outlook.office365.com (2603:10b6:408:f7::11) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.8534.36 via Frontend Transport; Thu, 20 Mar 2025 13:27:07 +0000 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 (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 Received: from SATLEXMB04.amd.com (165.204.84.17) by BL02EPF00021F69.mail.protection.outlook.com (10.167.249.5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.8534.20 via Frontend Transport; Thu, 20 Mar 2025 13:27:07 +0000 Received: from tlendack-t1.amd.com (10.180.168.240) 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 15.1.2507.39; Thu, 20 Mar 2025 08:27:05 -0500 From: Tom Lendacky To: , , CC: Paolo Bonzini , Sean Christopherson , Borislav Petkov , Dave Hansen , Ingo Molnar , "Thomas Gleixner" , Michael Roth Subject: [PATCH 0/5] Provide SEV-ES/SEV-SNP support for decrypting the VMSA Date: Thu, 20 Mar 2025 08:26:48 -0500 Message-ID: X-Mailer: git-send-email 2.46.2 Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL02EPF00021F69:EE_|BL1PR12MB5876:EE_ X-MS-Office365-Filtering-Correlation-Id: 80d10ec9-8669-44ad-b223-08dd67b2e97a X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|1800799024|376014|36860700013|13003099007; X-Microsoft-Antispam-Message-Info: a/KZGW/B7tBifGYbzA8tY15cRb0J/I7517HXqQfo6+zGUU2ZWe0sJLNaiTIkDnwvAfjI0lGKSs5T8KEkJab70kGaBD3uygkSeESkxDN5ny8vspZ3JWyXWvUW++oBBkmKD80PTFu8UQ0YefzxLUAOHGOQfRKOmxKF6ufjLfqQH2vv2BNrrABSkJRWwRecv+L1P/OCOyampu0S4eju8E8H8A+y1aaALPicNLJLbfYpKQ7ke9IDIcnxJNx1AMs6azTv8INVt73X/QNPFkuXQN/9mK8xO3c9NONMqVhT4dUwz6KBwCm8ALBDW0+T0zvepHK8LJ/HDWgjUcSDwIy35uNVuThuJyyoAVUdtlh3FAEL1YwOCRbiF4CS/Sco4j8QPB6fdxNLxFlcxKKtlzDw2jfZGsEkUCfnpbWpKS2jxCsMHktZ6elTKl4x3IvCdrYYJrwcoH/vHIYfLmHi2xO1Ki/WCxNNMHJQ+egm6vqBbzem0labWu5MqbyhxPwdKWSjUtRlK6osM3/WSd///K7X3212kogTpTonOHrRJ1bnOT8rZdSVI83adzpXCCenmqd4TBommicAfEf4Yef9ZXTfBYcZ5egH1Ekm7K5tzoQORpJUTLzOpbcvbgMwUn6rDhiIOiqvo/AQbBbGT9hIJlDLza+ge3PT7CWFKXmoMBkxa50NSR9fk71NyS1nBPUr1YqWal5MPHSdJHWxt4k1PdnpH2LA3bh95SaAqdXvuokamjcS7hqcxWl9ChSfBYW7xdjiLQTLzuJ5dBaI4T3yw55dBc3qg/JLTq8dcqvnFtBlPAtFR6tBqqakFq/Tu4CaPWnptiPEkmtt399IkKGRPghrwcejklDRuu3DEl8VDQjqJEuSn+XM8znPzE23hUgkdoczaSnktIfMIgVZgbBlKQ2GXH8jMmgwsW2wW+dyiWSQmhI/Nvw/EaSAR77aGTIodzA0/UDSshVcMxFCgwY43yUON8WU04g5/MmLqun85/LM5NoQ4caAB3VZxeAkhVNYZd1sPsI7G+BagIzOA/t0rj+SDaznbLf2CCxRB00hdAuEJJgap56KkcpChvBA0F3pahG8QX4fxQ02EN9GDcUXzXywKQXRNTxcrfrislJoOMbmZCzoU4u8oByXKDZHi8A+QIkVKI7rlLzfFH1n5LL05/6mRIR+1WcQDkKZrLyOG2UtBnBBJ60dywtpHPMi3lY+AHWISQYJIQQ3YHw/wISWl0E8VDYYcgLf3NNGPh3GE9voQh3pdE8KqtZVC065n+hXw3deOn7t3go2HkJR473zhBv5hZ4BwZIiCPF0KaSy4dUJMsWzQQUog7Hg+bWbj5pcJANkXIMBo80HkLb1RIe4UbNM+JkXFoTgpjUk2JSzlqskprBgoulYVuzbrkWPXLgLNmMNLMn1zH6AhXU5qfdQxuR0KEppVSkNpFsb7OYRla/l5ZrMP01ilIqp+sop4jtdLk0MqzSMnZlPqyd7tIWDrvo8fxHHg3c6odPx2OzqhgFmyVSScw0= 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:(13230040)(82310400026)(1800799024)(376014)(36860700013)(13003099007);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 Mar 2025 13:27:07.4981 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 80d10ec9-8669-44ad-b223-08dd67b2e97a 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: BL02EPF00021F69.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL1PR12MB5876 This series adds support for decrypting an SEV-ES/SEV-SNP VMSA in dump_vmcb() when the guest policy allows debugging. It also contains some updates to dump_vmcb() to dump additional guest register state, print the type of guest, print the vCPU id, and adds a mutex to prevent interleaving of the dump_vmcb() messages when multiple vCPU threads call dump_vmcb(). These last patches can be dropped if not desired. The series is based off of and tested against the KVM tree: https://git.kernel.org/pub/scm/virt/kvm/kvm.git next e335300095c3 ("Merge tag 'loongarch-kvm-6.15' of git://git...") Tom Lendacky (5): KVM: SVM: Decrypt SEV VMSA in dump_vmcb() if debugging is enabled KVM: SVM: Dump guest register state in dump_vmcb() KVM: SVM: Add the type of VM for which the VMCB/VMSA is being dumped KVM: SVM: Include the vCPU ID when dumping a VMCB KVM: SVM: Add a mutex to dump_vmcb() to prevent concurrent output arch/x86/kvm/svm/sev.c | 98 ++++++++++++++++++++++++++++++++++++++++++ arch/x86/kvm/svm/svm.c | 80 +++++++++++++++++++++++++++++++++- arch/x86/kvm/svm/svm.h | 11 +++++ 3 files changed, 187 insertions(+), 2 deletions(-) base-commit: e335300095c370149aada9783df2d7bf5b0db7c7 Acked-by: Borislav Petkov (AMD) Tested-by: Kim Phillips