From nobody Sun Feb 8 19:24:45 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of groups.io designates 66.175.222.12 as permitted sender) smtp.mailfrom=bounce+27952+56190+1787277+3901457@groups.io; arc=fail (BodyHash is different from the expected one) Received: from web01.groups.io (web01.groups.io [66.175.222.12]) by mx.zohomail.com with SMTPS id 1585071690538124.78520141356489; Tue, 24 Mar 2020 10:41:30 -0700 (PDT) Return-Path: X-Received: by 127.0.0.2 with SMTP id BtnQYY1788612xdimWXZJHeo; Tue, 24 Mar 2020 10:41:30 -0700 X-Received: from NAM12-MW2-obe.outbound.protection.outlook.com (NAM12-MW2-obe.outbound.protection.outlook.com [40.107.244.71]) by mx.groups.io with SMTP id smtpd.web11.1228.1585071688349182851 for ; Tue, 24 Mar 2020 10:41:28 -0700 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=N6SlMoUEXRlE1ZNvTn6wtk937pUXFG1T2xZWAqScJLxqnswUFPpFuWP1Wtp5fxxYYeStIHjax+rSoyJkItABLbfcw4Z2/yJKNHI3NcMX8m3VRVF6B9EukN0Q2EkUBKb90d4AUa3cZhkGEQSe3i4NI4ZGsNU7cly6hSKMJCqmOTJYlZLAoupUikGdN02/q9pDLuZkYEkk0pGzJr04wVzgFBeakfTMAAkrwVRJ/VEN0y7sbJOSmodpl3RI5SVtMxtKJeM+M/zsr5oiURiWHWEA9ZlieqFua9fGxhi+JU5QKLDjCuReScHNlzaGrcOb+ZgcsS08W+F6S+rltbaW+Ke4yQ== 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=A0gL+27tK8J5tqENRzvsBcL5QM5Av5CYAd0wa/1wUFs=; b=B/bp3OlmpNNsnMnsKy9se8+6EOpBFaujrGK6kjyN+YQJRSkE1LuQE1a7kDJL3e/iW7Ve2ImOXpdV4KMHTA8uEMFCrv6FxLTH2A3udrAPi/3Y22f1Vcax6SWVUceTD+p6lZXBhuida8wPLBxPfpFZ6EdKGQuqih0TPLjmhBVhw4MpCUePC3VquNRbyBZXEf3BTfPlxumYej2cJi7Vwm/5A7+t0Y55/7lH+/gKrsYKF/MmU8fVoyj3+Pe4ZJ5qAECRvPNXObsYT+sHQm2ejWyWMbNjQC7RUrV7zDTk7YDy6Z5unz0Nyse84JXIXzCbWx1ol+qzEWf00UFxWTdnIBpxXQ== 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 X-Received: from DM6PR12MB3163.namprd12.prod.outlook.com (2603:10b6:5:15e::26) by DM6PR12MB3915.namprd12.prod.outlook.com (2603:10b6:5:1c4::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2835.22; Tue, 24 Mar 2020 17:41:27 +0000 X-Received: from DM6PR12MB3163.namprd12.prod.outlook.com ([fe80::f0f9:a88f:f840:2733]) by DM6PR12MB3163.namprd12.prod.outlook.com ([fe80::f0f9:a88f:f840:2733%7]) with mapi id 15.20.2835.023; Tue, 24 Mar 2020 17:41:27 +0000 From: "Lendacky, Thomas" To: devel@edk2.groups.io Cc: Jordan Justen , Laszlo Ersek , Ard Biesheuvel , Michael D Kinney , Liming Gao , Eric Dong , Ray Ni , Brijesh Singh Subject: [edk2-devel] [PATCH v6 18/42] UefiCpuPkg/CpuExceptionHandler: Add support for RDPMC NAE events Date: Tue, 24 Mar 2020 12:40:32 -0500 Message-Id: In-Reply-To: References: X-ClientProxiedBy: DM5PR06CA0025.namprd06.prod.outlook.com (2603:10b6:3:5d::11) To DM6PR12MB3163.namprd12.prod.outlook.com (2603:10b6:5:15e::26) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-Received: from tlendack-t1.amd.com (165.204.77.1) by DM5PR06CA0025.namprd06.prod.outlook.com (2603:10b6:3:5d::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2835.19 via Frontend Transport; Tue, 24 Mar 2020 17:41:26 +0000 X-Originating-IP: [165.204.77.1] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: 305acabe-c125-4eee-73b1-08d7d01a9403 X-MS-TrafficTypeDiagnostic: DM6PR12MB3915:|DM6PR12MB3915: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:2000; Received-SPF: pass (zohomail.com: domain of groups.io designates 66.175.222.12 as permitted sender) client-ip=66.175.222.12; envelope-from=bounce+27952+56190+1787277+3901457@groups.io; helo=web01.groups.io; Received-SPF: None (protection.outlook.com: amd.com does not designate permitted sender hosts) X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam-Message-Info: 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 X-MS-Exchange-AntiSpam-MessageData: 5bgVr0cEyHutDPisfistRkQOHcIOHqEnHFe+5c+d+RRvg3yqtW1GK6dDXjd2Kowtc9eVWhY0VOIlxYrPU8DTjgDdz6cJuD9Gf3pX5DX7hdfQ5UK7Bnfck0mfdZELC3zOHhyoLIsoJZP8lJc8DAApIQ== X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: 305acabe-c125-4eee-73b1-08d7d01a9403 X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Mar 2020 17:41:27.0324 (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: iOiVLKSpggcKF77xDgxMs9quW38qNVxZFF8qQnwSvmlPeJbcgSPmGp7S+ONRjHGfiozlpvP7Rm2KBIBJQqtlWA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB3915 Precedence: Bulk List-Unsubscribe: Sender: devel@edk2.groups.io List-Id: Mailing-List: list devel@edk2.groups.io; contact devel+owner@edk2.groups.io Reply-To: devel@edk2.groups.io,thomas.lendacky@amd.com X-Gm-Message-State: gNh3oDexFly5qsw9GBIYntTYx1787277AA= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=groups.io; q=dns/txt; s=20140610; t=1585071690; bh=hDXcieD/F8mrlpjL8JG9srW8jzTGQdDWqTfkjiUrok4=; h=Cc:Content-Type:Date:From:Reply-To:Subject:To; b=YGhofmbHDeegzxEb4dJCawZIGfGXkWF69m8zgNatyMQIWVO2P1wx1PcIeDYwK5uAsPO Pc+M+raU0ffALgvmt0qRXkFVUg1Bwz1DzplycyyM4tiVfJ2SN47uFtlalfPCe8EqEzikC gWz+pmT/7d/u7wEnmca9P0LlVhpFeY0YghQ= X-ZohoMail-DKIM: pass (identity @groups.io) Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 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: Eric Dong Cc: Ray Ni Cc: Laszlo Ersek Signed-off-by: Tom Lendacky --- .../X64/ArchAMDSevVcHandler.c | 32 +++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ArchAMDSevVcHand= ler.c b/UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ArchAMDSevVcHandler.c index 9de04f6d31f6..ea67648d12ff 100644 --- a/UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ArchAMDSevVcHandler.c +++ b/UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ArchAMDSevVcHandler.c @@ -894,6 +894,34 @@ CpuidExit ( return 0; } =20 +STATIC +UINT64 +RdpmcExit ( + GHCB *Ghcb, + EFI_SYSTEM_CONTEXT_X64 *Regs, + SEV_ES_INSTRUCTION_DATA *InstructionData + ) +{ + UINT64 Status; + + Ghcb->SaveArea.Rcx =3D Regs->Rcx; + GhcbSetRegValid (Ghcb, GhcbRcx); + + Status =3D VmgExit (Ghcb, SvmExitRdpmc, 0, 0); + if (Status) { + 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; +} + STATIC UINT64 RdtscExit ( @@ -939,6 +967,10 @@ DoVcCommon ( NaeExit =3D RdtscExit; break; =20 + case SvmExitRdpmc: + NaeExit =3D RdpmcExit; + break; + case SvmExitCpuid: NaeExit =3D CpuidExit; break; --=20 2.17.1 -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#56190): https://edk2.groups.io/g/devel/message/56190 Mute This Topic: https://groups.io/mt/72522868/1787277 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [importer@patchew.org] -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-