From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from NAM11-CO1-obe.outbound.protection.outlook.com (NAM11-CO1-obe.outbound.protection.outlook.com [40.107.220.50]) by mx.groups.io with SMTP id smtpd.web10.9821.1597325182778608732 for ; Thu, 13 Aug 2020 06:26:22 -0700 Authentication-Results: mx.groups.io; dkim=fail reason="body hash did not verify" header.i=@amdcloud.onmicrosoft.com header.s=selector2-amdcloud-onmicrosoft-com header.b=MEp4he0B; spf=none, err=SPF record not found (domain: amd.com, ip: 40.107.220.50, mailfrom: thomas.lendacky@amd.com) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=CrCctozb3HBI2EiSVFbpUWOtRw1Lt8j9sFo3WUIFEzyUq3pKJRyZ5/4uEdOmh7qSVS85X2WZMUaQq5vR0r/2gZSpQzkpQIzf3iJfnQ7ngkocGyko2/JDkbxynhvb6wa1P3KSwrYTwy2WA1YlbDoMJSQN0YK6juozCbhPttve99tN0pxNdy3WdkHh+AYdYGNhhriI0i/RTEB2V3UwthHAIeBRs7W06/Rbe/XcfzhrKkq5Rt4GAJxtVD6iDRYf6/iNwVIld8pv02CoqbxaPnmyvQcBq/CSCRRN8zMagoP5P9/b+tpCiV2vmow/i59m0X2XsHCDlOAI++CdLomkBalAKg== 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-SenderADCheck; bh=uUuP+GGttyhypt0feXyktQjEGeKQu7CERusqjkFblY4=; b=OK1SxqGFOYV2FC4hkSyLloKT+RnXEKntoTwXRiMp61b4Vb921baSl3T72HXHXxkK+bQ3TNE5VnsZNZycrMxc6HFiuuNRstmubBXZ0sYPj+kmcIKx2OjY7NFBW2pr7j/WKIJk5I3Hm6uCNjW041UH8+tY7C1qhLqCRxQnOFUH/+rKM5CKiI3Jl/rXmeR4TAiFnpuo/6vfesJZr27m0kuD4W/jUdv9MtwEDXc9wQf9e2rMt4sYNGcgJrrs4e/zFp7vIvPWwVRavPKvzmO5pNq1lH/HYg1WjK3T2Sk3Px+6/nYCpZfbGZf2EY87o9dYKoA/BRfaGh3B9IXRympELJED3g== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=amd.com; dmarc=pass action=none header.from=amd.com; dkim=pass header.d=amd.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amdcloud.onmicrosoft.com; s=selector2-amdcloud-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=uUuP+GGttyhypt0feXyktQjEGeKQu7CERusqjkFblY4=; b=MEp4he0BJzth0w4a5Tokli7lRKnTuW77ej8MMNKBUt9BaOV3nh4ShcK+zWhUjndJZwpzLCj/AJgeh4Pjox3zL/Z761YSXGan49CK3ElHfRCqXLd0WfDpr20N5BYsRCWj8LeW18fKjWMj2JqoeVN42lDUSiJlIm+0lrLv/Bgo1hs= Authentication-Results: edk2.groups.io; dkim=none (message not signed) header.d=none;edk2.groups.io; dmarc=none action=none header.from=amd.com; Received: from DM5PR12MB1355.namprd12.prod.outlook.com (2603:10b6:3:6e::7) by DM5PR1201MB0026.namprd12.prod.outlook.com (2603:10b6:4:52::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3261.20; Thu, 13 Aug 2020 13:26:21 +0000 Received: from DM5PR12MB1355.namprd12.prod.outlook.com ([fe80::25ec:e6ba:197c:4eb0]) by DM5PR12MB1355.namprd12.prod.outlook.com ([fe80::25ec:e6ba:197c:4eb0%8]) with mapi id 15.20.3261.025; Thu, 13 Aug 2020 13:26:21 +0000 From: "Lendacky, Thomas" To: devel@edk2.groups.io CC: Brijesh Singh , Ard Biesheuvel , Eric Dong , Jordan Justen , Laszlo Ersek , Liming Gao , Michael D Kinney , Ray Ni Subject: [PATCH v15 20/46] OvmfPkg/VmgExitLib: Add support for RDPMC NAE events Date: Thu, 13 Aug 2020 08:23:07 -0500 Message-ID: X-Mailer: git-send-email 2.28.0 In-Reply-To: References: X-ClientProxiedBy: DM3PR12CA0096.namprd12.prod.outlook.com (2603:10b6:0:55::16) To DM5PR12MB1355.namprd12.prod.outlook.com (2603:10b6:3:6e::7) Return-Path: thomas.lendacky@amd.com MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from tlendack-t1.amd.com (165.204.77.1) by DM3PR12CA0096.namprd12.prod.outlook.com (2603:10b6:0:55::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3283.16 via Frontend Transport; Thu, 13 Aug 2020 13:26:20 +0000 X-Mailer: git-send-email 2.28.0 X-Originating-IP: [165.204.77.1] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: 395fe65f-9f83-4ebe-a6e3-08d83f8c77d6 X-MS-TrafficTypeDiagnostic: DM5PR1201MB0026: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:6430; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: IiugxoAGk9rlBvuCC5zXe4VpcJ0JvfmoloIKj6WGWraLzpO18QGr3NU1ZRS2SIc4nHF3dtRd8S1w2KCOI54mvyGto4ZjJm5JOCAHu8ZeLE/0fo0XRbgoxa5J1ZTs0iXxwuUwUqhzbg0xHX6eUyBnZmTc212RbTF19K4lW/y6RjwdZF51JfQq2kDZwV31FgceagrhZzu7LPMNcUo1mCZA8WK/TP/0uLUUgSrncCeN05Pr0+weynhx6dOdRghUcMEo8HjBmrAJYfq3A4hGkGLC7HasdUJbmC/WGGvOujQIhHHMaz3yx18Nj/rQpoBKejbwbZ7b6jHQc0Rsg4ZVKWpYonyf0s35/A2yJFH54IIQCYbG2BbbFvwSlwCs6SgwvJaObxiQ8MtVClDkYzKqLxspOhJiFoZ61BItcHbD2FS79tj7eZXBc7RDBApzkSUkmXWnVvVhntKz5+RiK1cYoavQlw== X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DM5PR12MB1355.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFTY:;SFS:(4636009)(376002)(136003)(346002)(396003)(366004)(39860400002)(316002)(8936002)(5660300002)(83380400001)(54906003)(8676002)(6486002)(2906002)(6666004)(6916009)(956004)(2616005)(4326008)(66476007)(26005)(52116002)(7696005)(66556008)(16526019)(36756003)(966005)(478600001)(66946007)(86362001)(186003)(136400200001);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: 395fe65f-9f83-4ebe-a6e3-08d83f8c77d6 X-MS-Exchange-CrossTenant-AuthSource: DM5PR12MB1355.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Aug 2020 13:26:21.3621 (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: JdkjxKcMJqKW2qyLj9f2UnteTTTIxkoxActxap3EI754tK+AUR+NW9mZbj69RhLXgvYEGit6roDv1mJ9ZhU+tw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR1201MB0026 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable From: Tom Lendacky BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3D2198 Under SEV-ES, a RDPMC intercept generates a #VC exception. VMGEXIT must be used to allow the hypervisor to handle this intercept. Cc: Jordan Justen Cc: Laszlo Ersek Cc: Ard Biesheuvel Acked-by: Laszlo Ersek Signed-off-by: Tom Lendacky --- OvmfPkg/Library/VmgExitLib/VmgExitVcHandler.c | 46 ++++++++++++++++++++ 1 file changed, 46 insertions(+) diff --git a/OvmfPkg/Library/VmgExitLib/VmgExitVcHandler.c b/OvmfPkg/Librar= y/VmgExitLib/VmgExitVcHandler.c index aa1e78f35735..0dd119fdecb1 100644 --- a/OvmfPkg/Library/VmgExitLib/VmgExitVcHandler.c +++ b/OvmfPkg/Library/VmgExitLib/VmgExitVcHandler.c @@ -1223,6 +1223,48 @@ CpuidExit ( return 0; } =20 +/** + Handle a RDPMC event. + + Use the VMGEXIT instruction to handle a RDPMC event. + + @param[in, out] Ghcb Pointer to the Guest-Hypervisor Communi= cation + Block + @param[in, out] Regs x64 processor context + @param[in] InstructionData Instruction parsing context + + @retval 0 Event handled successfully + @return New exception value to propagate + +**/ +STATIC +UINT64 +RdpmcExit ( + IN OUT GHCB *Ghcb, + IN OUT EFI_SYSTEM_CONTEXT_X64 *Regs, + IN SEV_ES_INSTRUCTION_DATA *InstructionData + ) +{ + UINT64 Status; + + Ghcb->SaveArea.Rcx =3D Regs->Rcx; + GhcbSetRegValid (Ghcb, GhcbRcx); + + Status =3D VmgExit (Ghcb, SVM_EXIT_RDPMC, 0, 0); + if (Status !=3D 0) { + return Status; + } + + if (!GhcbIsRegValid (Ghcb, GhcbRax) || + !GhcbIsRegValid (Ghcb, GhcbRdx)) { + return UnsupportedExit (Ghcb, Regs, InstructionData); + } + Regs->Rax =3D Ghcb->SaveArea.Rax; + Regs->Rdx =3D Ghcb->SaveArea.Rdx; + + return 0; +} + /** Handle a RDTSC event. =20 @@ -1310,6 +1352,10 @@ VmgExitHandleVc ( NaeExit =3D RdtscExit; break; =20 + case SVM_EXIT_RDPMC: + NaeExit =3D RdpmcExit; + break; + case SVM_EXIT_CPUID: NaeExit =3D CpuidExit; break; --=20 2.28.0