From patchwork Tue Apr 8 11:23:57 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shivank Garg X-Patchwork-Id: 14042887 Received: from NAM12-DM6-obe.outbound.protection.outlook.com (mail-dm6nam12on2059.outbound.protection.outlook.com [40.107.243.59]) (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 E7C5E268C61; Tue, 8 Apr 2025 11:25:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.243.59 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744111508; cv=fail; b=AWKTf6FA92m6u9yAOQGC6e4aOnYCFzBDhurfaoixN+iS7mi9Naw/K9Sckpu9cMvm7ifDz01sTLgrYThT5I8YYNFumwuNIv+hy+BzzJAlCagXTbHJhUvGmgeJT1izp24lfC707KJ+jWonBJliLAN5FXFNQte1dXpS/k4W4fPFNY0= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744111508; c=relaxed/simple; bh=aAG1b2xEtAYKL34AheW09dcHsdsergw+mkvhYgy9jYk=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=POWJsQJn7s9+9f4oJwGhevlTvEJlSBOssGyLvwckHhc1beuwZqU1i0fHT3hVy/m0/2ezb+9QCkeqwWFmOBxwrRNotVtYxqyS17kJ3+GH1vzNu/3vkgbu3reKq60lkYnncYT304l8HKHk8FYXt3+MorGZ9/vWfPqzeTFVyEDISQU= 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=sVqyJoI3; arc=fail smtp.client-ip=40.107.243.59 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="sVqyJoI3" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=g+8eqQcwvkhoZ+ULoCanRLe72JPxtTWUM0zzjSdylZ79q+n1JUYH+fZN/pV7qJsomh8pmENq15X+3vFtocd0L2eD0KkLTmMy8f4wgD7gRGmcjydBv/apOJj1ZeUGd24T/nsWLgV5uMAKtHyLvaVWEZsC//E6FOOQEbZQHvna0ve9ZMsuPqkuPhxT9lLMUTygBdp+3eSKrRIg3hcUN7QtbMHcEFYURQWxlgAbsGRbiSFqAqyd4JtS8Tu7jIGO+GsXo1LMJ8zFi84CHR5GTJ/7d+4a4GtnHHFhkRGYWVPXMbmFwyTS3qd6cpi8vmcLGaSknNq8IRoG9QbSvlewW5zZlw== 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=sYHq9jnSXndSvuTqlUZsfvxk1dzgclFuAnLBjLJpGB4=; b=g0sJpEZOIQ05dWHQF8UU96MuMJkp2oRF2NBCOCc9nvbjvimYH7wAec2LCc4sf9GkIRvspe+5AEWeUtm4lHF7YsXjbmpj0O4noR+FATr/vGfaaZvsVk5b/7h7uOPv3/5Qz9WjinZxhyv0GC1/rje3405ZHdEVCoWlakKjo9q457BTDU9332ReprXnotlyxIsTy56b8PDbX0OYmzJx6SbSExg3Cten2vB/6hzxr/eOv0Rn2DVtXaCJUXuHy97EWjqvnHcvKncNm+KLH6PUGCoS5ZH9OYdYDxVRg+wvE1Dij9PGon22bbzDUWefsLDKCCyUlFiXaEAcCJ/KrfJVoNr7BQ== 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=sYHq9jnSXndSvuTqlUZsfvxk1dzgclFuAnLBjLJpGB4=; b=sVqyJoI3autnWi1Ro5LcMY2srDh17clyt2logF/WFtB3HYUjwX/7m/ihNHZE3+3EKyOfs8yskiPifUwVz/MxFK03M2gL+Ppu8FrkKrMR4SzKFj9Fg7i1KT/8157CDgvkEC5NaqfB+s9kaTQo4g3dv97svrmDUzqQxViN/sT8JgE= Received: from BY3PR05CA0004.namprd05.prod.outlook.com (2603:10b6:a03:254::9) by SJ0PR12MB8613.namprd12.prod.outlook.com (2603:10b6:a03:44d::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8583.46; Tue, 8 Apr 2025 11:25:02 +0000 Received: from SN1PEPF000397AF.namprd05.prod.outlook.com (2603:10b6:a03:254:cafe::c1) by BY3PR05CA0004.outlook.office365.com (2603:10b6:a03:254::9) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.8632.10 via Frontend Transport; Tue, 8 Apr 2025 11:25:02 +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 SN1PEPF000397AF.mail.protection.outlook.com (10.167.248.53) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.8632.13 via Frontend Transport; Tue, 8 Apr 2025 11:25:02 +0000 Received: from kaveri.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; Tue, 8 Apr 2025 06:24:53 -0500 From: Shivank Garg To: , , , , , , CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH RFC v7 3/8] security: Export security_inode_init_security_anon for KVM guest_memfd Date: Tue, 8 Apr 2025 11:23:57 +0000 Message-ID: <20250408112402.181574-4-shivankg@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250408112402.181574-1-shivankg@amd.com> References: <20250408112402.181574-1-shivankg@amd.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SN1PEPF000397AF:EE_|SJ0PR12MB8613:EE_ X-MS-Office365-Filtering-Correlation-Id: 867ce280-46c1-4e7e-852f-08dd76900135 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|7416014|376014|1800799024|36860700013; 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)(7416014)(376014)(1800799024)(36860700013);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 08 Apr 2025 11:25:02.3506 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 867ce280-46c1-4e7e-852f-08dd76900135 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: SN1PEPF000397AF.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR12MB8613 KVM guest_memfd is implementing its own inodes to store metadata for backing memory using a custom filesystem. This requires the ability to initialize anonymous inode using security_inode_init_security_anon(). As guest_memfd currently resides in the KVM module, we need to export this symbol for use outside the core kernel. In the future, guest_memfd might be moved to core-mm, at which point the symbols no longer would have to be exported. When/if that happens is still unclear. Signed-off-by: Shivank Garg --- security/security.c | 1 + 1 file changed, 1 insertion(+) diff --git a/security/security.c b/security/security.c index fb57e8fddd91..097283bb06a5 100644 --- a/security/security.c +++ b/security/security.c @@ -1877,6 +1877,7 @@ int security_inode_init_security_anon(struct inode *inode, return call_int_hook(inode_init_security_anon, inode, name, context_inode); } +EXPORT_SYMBOL(security_inode_init_security_anon); #ifdef CONFIG_SECURITY_PATH /**