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client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by DS3PEPF000099DC.mail.protection.outlook.com (10.167.17.198) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.8466.11 via Frontend Transport; Mon, 17 Feb 2025 10:23:00 +0000 Received: from gomati.amd.com (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 15.1.2507.39; Mon, 17 Feb 2025 04:22:56 -0600 From: Nikunj A Dadhania To: , , CC: , , , , Subject: [PATCH v3 2/5] crypto: ccp: Add missing member in SNP_LAUNCH_START command structure Date: Mon, 17 Feb 2025 15:52:34 +0530 Message-ID: <20250217102237.16434-3-nikunj@amd.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250217102237.16434-1-nikunj@amd.com> References: <20250217102237.16434-1-nikunj@amd.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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: DS3PEPF000099DC:EE_|PH7PR12MB7305:EE_ X-MS-Office365-Filtering-Correlation-Id: e217fc7a-6fdc-4c24-6b3a-08dd4f3d0e11 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|376014|1800799024|36860700013; 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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Feb 2025 10:23:00.3006 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e217fc7a-6fdc-4c24-6b3a-08dd4f3d0e11 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: DS3PEPF000099DC.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB7305 The sev_data_snp_launch_start structure should include a 4-byte desired_tsc_khz field before the gosvw field, which was missed in the initial implementation. As a result, the structure is 4 bytes shorter than expected by the firmware, causing the gosvw field to start 4 bytes early. Fix this by adding the missing 4-byte member for the desired TSC frequency. Fixes: 3a45dc2b419e ("crypto: ccp: Define the SEV-SNP commands") Cc: stable@vger.kernel.org Suggested-by: Tom Lendacky Signed-off-by: Nikunj A Dadhania Reviewed-by: Tom Lendacky --- include/linux/psp-sev.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/psp-sev.h b/include/linux/psp-sev.h index f3cad182d4ef..1f3620aaa4e7 100644 --- a/include/linux/psp-sev.h +++ b/include/linux/psp-sev.h @@ -594,6 +594,7 @@ struct sev_data_snp_addr { * @imi_en: launch flow is launching an IMI (Incoming Migration Image) for the * purpose of guest-assisted migration. * @rsvd: reserved + * @desired_tsc_khz: hypervisor desired mean TSC freq in kHz of the guest * @gosvw: guest OS-visible workarounds, as defined by hypervisor */ struct sev_data_snp_launch_start { @@ -603,6 +604,7 @@ struct sev_data_snp_launch_start { u32 ma_en:1; /* In */ u32 imi_en:1; /* In */ u32 rsvd:30; + u32 desired_tsc_khz; /* In */ u8 gosvw[16]; /* In */ } __packed;