From patchwork Sun Apr 23 07:40:30 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolin Chen X-Patchwork-Id: 13221224 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E214BC77B73 for ; Sun, 23 Apr 2023 07:42:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=0sSWFmSITAbSqECWQl0ImwCyDy9fvoATUYqrs5P8T94=; b=Ds6Xpbp9KNDNG3 aJNM5D7CmVmrm1EJQrBN7gj0CyLPD3Dh7gtBHyelAsZhyYxIolNmQ84dFkv7hXMjl9UcbUHPoRtue vvn+dhN0tJuvqwZ9SJGl/eY0BNNPQ6G1cTB+LnM9Aoc7CUnytj082es5Z+pEUYxTYRPJvuzra65ZX GQEZr1R1eUwZA0qb5NPZHHTsF2PM3C1VTpczzsT+vgJNiERk04fgjNz8/3ai4Yf0g50ZktKMdI9sR tJd3NCMyXaUJASt524JOgf51HZhMn2aq19irM87SKw0jymkBwBD9e1rjqkpA+ttSqafkfxXoFGGzl t7sJMYaULYbf7C2mTWQw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pqULe-00DrU7-0S; Sun, 23 Apr 2023 07:41:26 +0000 Received: from mail-bn8nam12on2062c.outbound.protection.outlook.com ([2a01:111:f400:fe5b::62c] helo=NAM12-BN8-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pqULb-00DrSk-02 for linux-arm-kernel@lists.infradead.org; Sun, 23 Apr 2023 07:41:24 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=ei0BmFOC4ii1p8cyJiYcf4QWNSKFk/kBOFqJPMRUYtunuXFjiFsj6/G4qA62BtPFoWwcXkykfXuxAelwqs398s9dtftjNrreXkHsOY0NCmhhYkXzaaE2yaqWz/XpP68touwG+TORVla9dUvXmUUZU/SoelNpth51ohMUNISLToQPXyGc1T0BtgArPymYvOx0teS01rnW7BE5X9ROyJUjyPjGjqX488ZJwp1HiAsICAyjm6pjDi+hN6QXrwlphYJCbA4MSfP7f6mLK8cJ8ck/NQ41zj/TNys71VGCuFHmsqcCb8oF6GADfV/8FdzdpxkK+UGEYaRdjNCv8J67o1sfjA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; 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=4h8bFsY1cYly2esFXp36S2kufQYdt/NkN7n87TZxGBs=; b=fO0/KT1bjbuYO6hIiTJF/XGVIjJ+d6OPu7EDZiMfrNaw2evnnQRtRNiqvu5i1XWRICtBpc4EjTv1IQf4J69gURwbEZdmpA12INupKotmzCEoywrJZbDtFg0rwh9ShjPVSDMcnYv+V1FkBhbln3LYf58q2tL9SYNdU9tNBQnSBQ895iTcuL1SoypxXdnKNDZ5FIjfROqWp9cSxwZoBDMmSMRvS8Wm5hrQH3UjvuXzIVl6zn5HIz3g39XgJ/q3IMtksRYedhPV6YR6MSfTlI46neVYptLsOoKXwcFOiPG+vf/WvOj200KKg0HTbib8eg7TghIVcRcLXCRlUDzDnGeKvw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 216.228.117.160) smtp.rcpttodomain=intel.com smtp.mailfrom=nvidia.com; dmarc=pass (p=reject sp=reject pct=100) action=none header.from=nvidia.com; dkim=none (message not signed); arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=4h8bFsY1cYly2esFXp36S2kufQYdt/NkN7n87TZxGBs=; b=nAZTOhEVs0ZSCS0wEWlPaD0CtnoDmWgQo5XPJZedxU2LDFFrGMHCE9MvqTEbWBxOPW8r06PSMEKw8S5IApZiGDplwCxe/MEkFKgFZKG6toGUIqpkpUSV4aA3hbGdYfCS3rLg3OLwnnK/R70W2dV8DumWmTTeOlpV918d829aNJUAozQGvzdGIk5/bsCCqjXfzsWG05VG6jgbEE0MojOwAWdSUp9gNcZ54dqNxVfy0u4SFxFI90hhJ+4garlg57e0xqeNG2y2Zh92nj/Q/uTeec3wUUWra985PWYGt9W5LlxVyT7doMId+j3d9NVQ8YeQberjw/rimLAMUvrayiELJg== Received: from BN9PR03CA0499.namprd03.prod.outlook.com (2603:10b6:408:130::24) by PH7PR12MB7355.namprd12.prod.outlook.com (2603:10b6:510:20e::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6319.32; Sun, 23 Apr 2023 07:41:17 +0000 Received: from BN8NAM11FT105.eop-nam11.prod.protection.outlook.com (2603:10b6:408:130:cafe::3c) by BN9PR03CA0499.outlook.office365.com (2603:10b6:408:130::24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6319.32 via Frontend Transport; Sun, 23 Apr 2023 07:41:16 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 216.228.117.160) smtp.mailfrom=nvidia.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=nvidia.com; Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates 216.228.117.160 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.117.160; helo=mail.nvidia.com; pr=C Received: from mail.nvidia.com (216.228.117.160) by BN8NAM11FT105.mail.protection.outlook.com (10.13.176.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6340.18 via Frontend Transport; Sun, 23 Apr 2023 07:41:16 +0000 Received: from rnnvmail204.nvidia.com (10.129.68.6) by mail.nvidia.com (10.129.200.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.5; Sun, 23 Apr 2023 00:41:08 -0700 Received: from rnnvmail203.nvidia.com (10.129.68.9) by rnnvmail204.nvidia.com (10.129.68.6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.37; Sun, 23 Apr 2023 00:41:07 -0700 Received: from Asurada-Nvidia.nvidia.com (10.127.8.11) by mail.nvidia.com (10.129.68.9) with Microsoft SMTP Server id 15.2.986.37 via Frontend Transport; Sun, 23 Apr 2023 00:41:07 -0700 From: Nicolin Chen To: , CC: , , , , , , , , , , Subject: [PATCH RFC v3 0/4] Add set_dev_data and unset_dev_data support Date: Sun, 23 Apr 2023 00:40:30 -0700 Message-ID: X-Mailer: git-send-email 2.40.0 MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN8NAM11FT105:EE_|PH7PR12MB7355:EE_ X-MS-Office365-Filtering-Correlation-Id: bf4dc375-25e1-4d69-c21c-08db43ce1ef7 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230028)(4636009)(396003)(136003)(39860400002)(376002)(346002)(451199021)(46966006)(36840700001)(40470700004)(966005)(26005)(40480700001)(336012)(426003)(2616005)(34020700004)(36756003)(83380400001)(36860700001)(47076005)(186003)(40460700003)(7636003)(356005)(82740400003)(70206006)(70586007)(478600001)(86362001)(8936002)(8676002)(54906003)(7416002)(110136005)(5660300002)(7696005)(41300700001)(2906002)(82310400005)(4326008)(6666004)(316002);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Apr 2023 07:41:16.2903 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: bf4dc375-25e1-4d69-c21c-08db43ce1ef7 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN8NAM11FT105.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB7355 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230423_004123_077368_296EC672 X-CRM114-Status: UNSURE ( 9.89 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Changelog v3: * Reverted the data in VFIO BIND ioctl to a set of new iommufd ioctls * Replaced the iommu_device_data_size array with a dev_user_data_len variable in the iommu_ops structure. * Added has_dev_data check and locking protection * Added selftest coverage v2: https://lore.kernel.org/all/cover.1681976394.git.nicolinc@nvidia.com/ * Integrated the uAPI into VFIO_DEVICE_BIND_IOMMUFD call * Renamed the previous set_rid_user to set_dev_data, to decouple from the PCI regime. v1: https://lore.kernel.org/all/cover.1680762112.git.nicolinc@nvidia.com/ This is a pair of new uAPI/ops for user space to set an iommu specific device data for a passthrough device. This is primarily used by SMMUv3 driver for now, to link the vSID and the pSID of a device that's behind the SMMU. The link (lookup table) will be used to verify any ATC_INV command from the user space for that device, and then replace the SID field (virtual SID) with the corresponding physical SID. This series is available on Github: https://github.com/nicolinc/iommufd/commits/set_dev_data-rfc-v3 Thanks! Nicolin Nicolin Chen (4): iommu: Add set/unset_dev_user_data ops iommufd: Add IOMMUFD_CMD_DEVICE_SET_DATA and IOMMUFD_CMD_DEVICE_UNSET_DATA iommufd/selftest: Add IOMMU_TEST_OP_DEV_CHECK_DATA iommufd/selftests: Add coverage for IOMMU_DEVICE_SET/UNSET_DATA drivers/iommu/iommufd/device.c | 81 +++++++++++++++++++ drivers/iommu/iommufd/iommufd_private.h | 3 + drivers/iommu/iommufd/iommufd_test.h | 15 ++++ drivers/iommu/iommufd/main.c | 4 + drivers/iommu/iommufd/selftest.c | 42 ++++++++++ include/linux/iommu.h | 13 +++ include/uapi/linux/iommufd.h | 32 ++++++++ tools/testing/selftests/iommu/iommufd.c | 20 +++++ tools/testing/selftests/iommu/iommufd_utils.h | 59 ++++++++++++++ 9 files changed, 269 insertions(+)