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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 DM5PR12MB1355.namprd12.prod.outlook.com (2603:10b6:3:6e::7) by DM5PR12MB1354.namprd12.prod.outlook.com (2603:10b6:3:7a::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3066.20; Fri, 5 Jun 2020 13:28:10 +0000 X-Received: from DM5PR12MB1355.namprd12.prod.outlook.com ([fe80::4ce1:9947:9681:c8b1]) by DM5PR12MB1355.namprd12.prod.outlook.com ([fe80::4ce1:9947:9681:c8b1%10]) with mapi id 15.20.3066.019; Fri, 5 Jun 2020 13:28:10 +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: [edk2-devel] [PATCH v9 21/46] OvmfPkg/VmgExitLib: Add support for INVD NAE events Date: Fri, 5 Jun 2020 08:27:12 -0500 Message-Id: <58971fe415e5088ffa61f532034368e49481fe9b.1591363657.git.thomas.lendacky@amd.com> In-Reply-To: References: X-ClientProxiedBy: DM5PR19CA0060.namprd19.prod.outlook.com (2603:10b6:3:116::22) To DM5PR12MB1355.namprd12.prod.outlook.com (2603:10b6:3:6e::7) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-Received: from tlendack-t1.amd.com (165.204.77.1) by DM5PR19CA0060.namprd19.prod.outlook.com (2603:10b6:3:116::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3066.18 via Frontend Transport; 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contact devel+owner@edk2.groups.io Reply-To: devel@edk2.groups.io,thomas.lendacky@amd.com X-Gm-Message-State: wXuFmGw2cauP1aFWecCJRl1Mx1787277AA= Content-Transfer-Encoding: quoted-printable DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=groups.io; q=dns/txt; s=20140610; t=1591363693; bh=upopOmnb5PuMCOqrvKKMLvWT13+fRNHLtQYUEqlPUc8=; h=Cc:Content-Type:Date:From:Reply-To:Subject:To; b=rSTxzAH9b3dyIDyMZFTOnUB2EgdMv42tKDWfEaPqTYAckZ5ehejQrYmydBhRuGUITxm Vv1skdrt+U1PwvVGMfmHk6LAV5IIplAWmjQGk0k6lnyeyV1vxx+gbck/Ew3eLhzv768ve CZqlJvLAEJKsViDgmMB5AC6vl9xaOlvMOuw= X-ZohoMail-DKIM: pass (identity @groups.io) Content-Type: text/plain; charset="utf-8" BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3D2198 Under SEV-ES, a INVD 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 | 29 ++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/OvmfPkg/Library/VmgExitLib/VmgExitVcHandler.c b/OvmfPkg/Librar= y/VmgExitLib/VmgExitVcHandler.c index 0dbb10eee85c..9419651fea2e 100644 --- a/OvmfPkg/Library/VmgExitLib/VmgExitVcHandler.c +++ b/OvmfPkg/Library/VmgExitLib/VmgExitVcHandler.c @@ -1164,6 +1164,31 @@ IoioExit ( return 0; } =20 +/** + Handle a INVD event. + + Use the VMGEXIT instruction to handle a INVD 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 + + @return 0 Event handled successfully + @return Others New exception value to propagate + +**/ +STATIC +UINT64 +InvdExit ( + IN OUT GHCB *Ghcb, + IN OUT EFI_SYSTEM_CONTEXT_X64 *Regs, + IN SEV_ES_INSTRUCTION_DATA *InstructionData + ) +{ + return VmgExit (Ghcb, SVM_EXIT_INVD, 0, 0); +} + /** Handle a CPUID event. =20 @@ -1356,6 +1381,10 @@ VmgExitHandleVc ( NaeExit =3D CpuidExit; break; =20 + case SVM_EXIT_INVD: + NaeExit =3D InvdExit; + break; + case SVM_EXIT_IOIO_PROT: NaeExit =3D IoioExit; break; --=20 2.27.0 -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- Groups.io Links: You receive all messages sent to this group. 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