From patchwork Mon Dec 16 23:59:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Kalra, Ashish" X-Patchwork-Id: 13910694 X-Patchwork-Delegate: herbert@gondor.apana.org.au Received: from NAM11-DM6-obe.outbound.protection.outlook.com (mail-dm6nam11on2072.outbound.protection.outlook.com [40.107.223.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CE4A01D45F2; Mon, 16 Dec 2024 23:59:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.223.72 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734393578; cv=fail; b=GdnN2kQG1MpkxcdR3SNz5//QpgYXOZCslqAgIyBtc5quo8y4k+N7FEKhusG/VLBhIjeUjstuKDPHejuCrF+qH481Ndz9UZB3QiPF7x/bzSZANGJTF8ItS0BGbokhkID6XkSHMO09W0BTmgxmac7QvKfFTO77tEc0rQix7nvjGAQ= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734393578; c=relaxed/simple; bh=0duPIt7pde62qBFgWC4Manbp7tIa3/7JuniaJjmyW60=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=miOLvjYZJ/BPYwS2O/jNWq8wG7b2wIsLZC3kGJyuen+OY7C29GfaflEDgdWAmJ6+s4JYOhuqfKEYwRvr8+s7uzO6cfIrafMUnUYBuHvoCcF2nxiaSo3DzOmEvJbb5dpi598+GRzB/j9n669vdKS2pMAFpg9iLr68zhO6zGKK2UU= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com; spf=fail smtp.mailfrom=amd.com; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b=Bz6rIiu2; arc=fail smtp.client-ip=40.107.223.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=amd.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="Bz6rIiu2" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=vCF+bA/D7pP155iR2DytiJj7Bxvcfpe21uqLbQSo14J4JDgGeB/EE5giN6luvgZCkWAuOqRHxPVwSpVfdmQ/KHcEJfwyf12yZHUyARPPNU9pPtBN4EhDWkj5Y91UC9tVzyV1u61EHGKRhYUTLddv56Hxga8IiTQj0v5KRRey92WpKo9XWA7xqfjrNOzD6ySE5WuxDr8uUwXJhjRGZvJt4v5FfIa8/a7v3HKlGeL5H7E1MB7bDGyUV0AJ3NBEbNghDLO17aFUjqVHvLtSiLPiwvB4KefKTWy7SvVjWsBmQis6wzpjgxOsQkBD/aeQRTe4D79H7Dgliyyom4/sJKwInQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=Pq7l/AAI+sd8lDvQMzzaAAjzwqysM8JSeEe0t0Gmsxg=; b=FC39FEPMO1Re/XeWljid+4Ucs5PizDx7uGYJiNi6p4oI9KbEDS56BJ3aCZFOUmHYBQkYjgdU3cTcbYz6k92TgTXC+w4wDXeiHmotY06jZE8xGnnG8O8vkBQY7RyN0Fg0eoxbIevW9zPjRjL3PFsgDIuLgDOUyQp0PN2WnCaTA3FHJMwkKEHJcgzwmB3KzXD86mZmGgMk+VND0BSG+m7zyT+Kr0+VQaJRpAxaTgc/8gaS2DJoBMGh5YkbNzUHkcE6/UemFaKqKjK0jZw7nOueMz0/a6zS6xfzgKCuGXbDZBGEnrYnkN4h592EOqLU+k7Oja1fAklR4BOHi5o/rFkJlQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=google.com smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Pq7l/AAI+sd8lDvQMzzaAAjzwqysM8JSeEe0t0Gmsxg=; b=Bz6rIiu2/Uqsn8l/3+uUVZW/t+H5Uf4Ky1syoFZLwDlXG5qwuTUlYZ+mA28+sCBEwsvGh6UPAbNCjZNXY/5iHmjOcR6nKemnccjV2B/zmsUyCMJmQ7z+w/L+JaZphRNIUQw8tUsuM5FR+ZhsiWMn1WzWblEMTP+TwedsVI5uaFk= Received: from SJ0PR13CA0034.namprd13.prod.outlook.com (2603:10b6:a03:2c2::9) by DM4PR12MB7645.namprd12.prod.outlook.com (2603:10b6:8:107::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8251.21; Mon, 16 Dec 2024 23:59:33 +0000 Received: from SJ5PEPF00000206.namprd05.prod.outlook.com (2603:10b6:a03:2c2:cafe::27) by SJ0PR13CA0034.outlook.office365.com (2603:10b6:a03:2c2::9) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.8272.7 via Frontend Transport; Mon, 16 Dec 2024 23:59:33 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by SJ5PEPF00000206.mail.protection.outlook.com (10.167.244.39) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.8251.15 via Frontend Transport; Mon, 16 Dec 2024 23:59:33 +0000 Received: from ethanolx7e2ehost.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, 16 Dec 2024 17:59:31 -0600 From: Ashish Kalra To: , , , , , , , , , , , CC: , , , , , Subject: [PATCH v2 7/9] crypto: ccp: Add new SEV/SNP platform initialization API Date: Mon, 16 Dec 2024 23:59:23 +0000 Message-ID: X-Mailer: git-send-email 2.34.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-crypto@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: SJ5PEPF00000206:EE_|DM4PR12MB7645:EE_ X-MS-Office365-Filtering-Correlation-Id: 5c67cd06-5a33-49e7-7f8a-08dd1e2db040 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|1800799024|7416014|376014|36860700013|921020; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(82310400026)(1800799024)(7416014)(376014)(36860700013)(921020);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Dec 2024 23:59:33.4294 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 5c67cd06-5a33-49e7-7f8a-08dd1e2db040 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: SJ5PEPF00000206.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR12MB7645 From: Ashish Kalra Add new SNP platform initialization API to allow separate SEV and SNP initialization. Signed-off-by: Ashish Kalra --- drivers/crypto/ccp/sev-dev.c | 15 +++++++++++++++ include/linux/psp-sev.h | 17 +++++++++++++++++ 2 files changed, 32 insertions(+) diff --git a/drivers/crypto/ccp/sev-dev.c b/drivers/crypto/ccp/sev-dev.c index 001e7a401a6d..53c438b2b712 100644 --- a/drivers/crypto/ccp/sev-dev.c +++ b/drivers/crypto/ccp/sev-dev.c @@ -1375,6 +1375,21 @@ int sev_platform_init(struct sev_platform_init_args *args) } EXPORT_SYMBOL_GPL(sev_platform_init); +int sev_snp_platform_init(struct sev_platform_init_args *args) +{ + int rc; + + if (!psp_master || !psp_master->sev_data) + return -ENODEV; + + mutex_lock(&sev_cmd_mutex); + rc = __sev_snp_init_locked(&args->error); + mutex_unlock(&sev_cmd_mutex); + + return rc; +} +EXPORT_SYMBOL_GPL(sev_snp_platform_init); + static int __sev_platform_shutdown_locked(int *error) { struct psp_device *psp = psp_master; diff --git a/include/linux/psp-sev.h b/include/linux/psp-sev.h index 335b29b31457..e50643aef8a9 100644 --- a/include/linux/psp-sev.h +++ b/include/linux/psp-sev.h @@ -828,6 +828,21 @@ struct sev_data_snp_commit { */ int sev_platform_init(struct sev_platform_init_args *args); +/** + * sev_snp_platform_init - perform SNP INIT command + * + * @args: struct sev_platform_init_args to pass in arguments + * + * Returns: + * 0 if the SEV successfully processed the command + * -%ENODEV if the SNP support is not enabled + * -%ENOMEM if the SNP range list allocation failed + * -%E2BIG if the HV_Fixed list is too big + * -%ETIMEDOUT if the SEV command timed out + * -%EIO if the SEV returned a non-zero return code + */ +int sev_snp_platform_init(struct sev_platform_init_args *args); + /** * sev_platform_status - perform SEV PLATFORM_STATUS command * @@ -955,6 +970,8 @@ sev_platform_status(struct sev_user_data_status *status, int *error) { return -E static inline int sev_platform_init(struct sev_platform_init_args *args) { return -ENODEV; } +static inline int sev_snp_platform_init(struct sev_platform_init_args *args) { return -ENODEV; } + static inline int sev_guest_deactivate(struct sev_data_deactivate *data, int *error) { return -ENODEV; }