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Tue, 24 Mar 2020 17:41:12 +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 02/42] MdePkg: Add the MSR definition for the GHCB register Date: Tue, 24 Mar 2020 12:40:16 -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 17:41:11 +0000 X-Originating-IP: [165.204.77.1] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: a17f84a5-ec15-41c7-2ace-08d7d01a8b25 X-MS-TrafficTypeDiagnostic: DM6PR12MB4027:|DM6PR12MB4027: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:4941; 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contact devel+owner@edk2.groups.io Reply-To: devel@edk2.groups.io,thomas.lendacky@amd.com X-Gm-Message-State: mej6s7WgyFGrQNaJwMRZMGCxx1787277AA= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=groups.io; q=dns/txt; s=20140610; t=1585071676; bh=wkqVyED7T2EmJ3f0k8Vcz4YWhExfcqhe+r56zlpVQ/c=; h=Cc:Content-Type:Date:From:Reply-To:Subject:To; b=lOye2a96NX1f0rKMRTWO0vV84KEjF3KD4DoS3iwdnSm9wddSFlRMjhyJdgzva6clrSp ewVUIkXvcAHX0xvXqspUTRQDMOMH9v1OCliRreK/8CBbryUjOTcBEI8ybd+CNtOPtqpzi LUeFkHI6NxhRlvDbKrOIyyXqe79BLWHQzso= 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 For SEV-ES, the GHCB page address is stored in the GHCB MSR register (0xc0010130). Define the register and the format used for register during GHCB protocol negotiation. Cc: Michael D Kinney Cc: Liming Gao Signed-off-by: Tom Lendacky --- MdePkg/Include/Register/Amd/Fam17Msr.h | 42 ++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/MdePkg/Include/Register/Amd/Fam17Msr.h b/MdePkg/Include/Regist= er/Amd/Fam17Msr.h index 6ef45a9b21d3..466a3143599c 100644 --- a/MdePkg/Include/Register/Amd/Fam17Msr.h +++ b/MdePkg/Include/Register/Amd/Fam17Msr.h @@ -17,6 +17,48 @@ #ifndef __FAM17_MSR_H__ #define __FAM17_MSR_H__ =20 +/** + Secure Encrypted Virtualization - Encrypted State (SEV-ES) GHCB register + +**/ +#define MSR_SEV_ES_GHCB 0xc0010130 + +/** + MSR information returned for #MSR_SEV_ES_GHCB +**/ +typedef union { + struct { + UINT64 Function:12; + } GhcbInfo; + + struct { + UINT8 Reserved[3]; + UINT8 SevEncryptionBitPos; + UINT16 SevEsProtocolMin; + UINT16 SevEsProtocolMax; + } GhcbProtocol; + + struct { + UINT64 Function:12; + UINT64 ReasonCodeSet:4; + UINT64 ReasonCode:8; + } GhcbTerminate; + + VOID *Ghcb; + + UINT64 GhcbPhysicalAddress; +} MSR_SEV_ES_GHCB_REGISTER; + +#define GHCB_INFO_SEV_INFO 1 +#define GHCB_INFO_SEV_INFO_GET 2 +#define GHCB_INFO_CPUID_REQUEST 4 +#define GHCB_INFO_CPUID_RESPONSE 5 +#define GHCB_INFO_TERMINATE_REQUEST 256 + +#define GHCB_TERMINATE_GHCB 0 +#define GHCB_TERMINATE_GHCB_GENERAL 0 +#define GHCB_TERMINATE_GHCB_PROTOCOL 1 + /** Secure Encrypted Virtualization (SEV) status register =20 --=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. 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