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Thu, 1 Dec 2022 02:37:59 +0000 X-Received: from aiemdeew.1.ozlabs.ru (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 15.1.2375.34; Wed, 30 Nov 2022 20:37:53 -0600 From: "Alexey Kardashevskiy via groups.io" To: CC: Ard Biesheuvel , Jiewen Yao , Jordan Justen , "Gerd Hoffmann" , Brijesh Singh , "Erdem Aktas" , James Bottomley , Min Xu , Tom Lendacky , "Alexey Kardashevskiy" Subject: [edk2-devel] [PATCH ovmf 5/5] OvmfPkf: Enable AMD SEV-ES DebugSwap for DXE Date: Thu, 1 Dec 2022 13:35:21 +1100 Message-ID: <20221201023521.10028-6-aik@amd.com> In-Reply-To: <20221201023521.10028-1-aik@amd.com> References: <20221201023521.10028-1-aik@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS1PEPF0000B075:EE_|SJ0PR12MB6926:EE_ X-MS-Office365-Filtering-Correlation-Id: c358fdeb-a5ba-450f-220d-08dad3450f8c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam-Message-Info: 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 X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 Dec 2022 02:37:59.2611 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c358fdeb-a5ba-450f-220d-08dad3450f8c 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: DS1PEPF0000B075.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR12MB6926 Precedence: Bulk List-Unsubscribe: List-Subscribe: List-Help: 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,aik@amd.com X-Gm-Message-State: TqyQqJjLoY61FDge54UBUydXx1787277AA= Content-Transfer-Encoding: quoted-printable DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=groups.io; q=dns/txt; s=20140610; t=1669872366; bh=arlOrnzdeXYtyqSBFjKyluTEWtWxsPsmRfsbPIw9aM4=; h=CC:Content-Type:Date:From:Reply-To:Subject:To; b=ShuOnpuybJmD5rTLxoBHJikpdM8JbAfHNbFjWxic70PZMHeTj/gIrogh3bACeek5y7q RwLm6Lr1d4xgTuJ2TaVImAqSLiL1Bh2W7z+WZXS5SVpdo201KhlnX1AVaY/4IvcXrBu7n 1Jjdr/bgOnao5SFpSLDkj6V+q1BVn1V06yg= X-ZohoMail-DKIM: pass (identity @groups.io) X-ZM-MESSAGEID: 1669872367757100005 Content-Type: text/plain; charset="utf-8" This writes the feature bit into PcdConfidentialComputingGuestAttr and enables DebugSwap for the DXE stage too. Signed-off-by: Alexey Kardashevskiy --- OvmfPkg/PlatformPei/AmdSev.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/OvmfPkg/PlatformPei/AmdSev.c b/OvmfPkg/PlatformPei/AmdSev.c index e1b9fd9b7f68..479f898adff4 100644 --- a/OvmfPkg/PlatformPei/AmdSev.c +++ b/OvmfPkg/PlatformPei/AmdSev.c @@ -324,6 +324,7 @@ AmdSevInitialize ( ) { UINT64 EncryptionMask; + UINT64 CCGuestAttr; RETURN_STATUS PcdStatus; =20 // @@ -407,13 +408,19 @@ AmdSevInitialize ( // technology is active. // if (MemEncryptSevSnpIsEnabled ()) { - PcdStatus =3D PcdSet64S (PcdConfidentialComputingGuestAttr, CCAttrAmdS= evSnp); + CCGuestAttr =3D CCAttrAmdSevSnp; } else if (MemEncryptSevEsIsEnabled ()) { - PcdStatus =3D PcdSet64S (PcdConfidentialComputingGuestAttr, CCAttrAmdS= evEs); + CCGuestAttr =3D CCAttrAmdSevEs; } else { - PcdStatus =3D PcdSet64S (PcdConfidentialComputingGuestAttr, CCAttrAmdS= ev); + CCGuestAttr =3D CCAttrAmdSev; } =20 + if (MemEncryptSevEsDebugSwapIsEnabled ()) { + CCGuestAttr |=3D CCAttrAmdSevFeatureDebugSwap; + } + + PcdStatus =3D PcdSet64S (PcdConfidentialComputingGuestAttr, CCGuestAttr); + ASSERT_RETURN_ERROR (PcdStatus); } =20 --=20 2.38.1 -=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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