From patchwork Fri Jan 27 20:04:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolin Chen X-Patchwork-Id: 13119357 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 B0204C54EAA for ; Fri, 27 Jan 2023 20:15:24 +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:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject: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=kwmX4zDmPDPViEG94on+HHq2LK8+roezTc7uU+j5c80=; b=BXN9KsVfM5APqU Fszl31WrnvS9g5eB+rmQcx+DxD3NHh2k35fMS6sPH2+DdtBeis9mlBODYs92FLZWXQTEsgFOGuUsT GYwwoWYsmNDHUt07s4Sp6x3kSy3Hgb9tWnagDH3w2IX9pNUsfWkHm7o3fhuqQsxH0NxLBYMZFHfKS WKD6W1knFUKJTwacoD0+k9+7dAJqMBYlRybUSVFkiB7aAd/0IrIRnyGPlD7Sd9wJJ7MYdxIQV/KOS gPnuNbzr7MSBor8FWZmx1KvjNTpyI+sFD3H1VgbKYj8Mee6sbxaOV8E1oQ0bHwHIdySu3Tdi1ARwb 8JZole5yYE1ExETN5hPA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pLV6W-00GL8r-3d; Fri, 27 Jan 2023 20:13:45 +0000 Received: from mail-dm3nam02on2057.outbound.protection.outlook.com ([40.107.95.57] helo=NAM02-DM3-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pLUyC-00GHx3-CX; Fri, 27 Jan 2023 20:05:10 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=j/oJ/mjzoVJ9LYtmtKqnBfT6ykKG6CCwPi1fhWIWV/ECm6Fh5Lr1nZzkAHoV4zICg9oi91ydGHYOH7ofPw7SgDDCanVZF6KTOCf1ZAYMn5X7zwDjk0CadjtxpqGvOK1+qcbJmhZzoQW7ss9249YUM8O5Kw84JDFLKdrTMEUNdTt8Hdc6YLYTW4fDSbE8eGuukPyl7rUXV6AyinsiG+t+/migr5ZcjUt8ktGi+4/pbt9xlZhu426bp1XaMpj/91O5TxcvlBCkFGrjuPP4gFGONMzRcb3gCwEJC9ZFSLbTeoUtq/ss+NMIpKeiHKKx0j0QZqISQHiEnOJFBstJEraYOw== 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=VZh7ZQsu6wXe71RiKkNG/LgBAOZ30KFVhwYqOJyWR/U=; b=ScnWR7Ko1/BRa3pJ4uQpM4pFy0H8DiFMmwgtlbmUaIPxLddQ0/sg0kG73us0Pw1rbeSFnAb4S17HdTIVkkq9xyZJsXwWTCqQlYkDvqx5njARdMI7erFm8c7S/hCtkXiK1t7nABgfZ1/g/HIJMk8sG+It9K10o03OVWmXSwEKBVEbGHNrvqJKI7CAcOGCplgBqVPfH5ZnRbRruNAGQ3YEEnHOx5W56Wbi+bq0ayqGLUmgnMi2jM9yS7+rf9U1PyoFL6mIWTqtiYVjm3s2Tz62wgkgglfj8Uv9mg1jARTLx966lE/tGtOg7PdjQ74PRGr+gvMvfP7nLfz58f8MD2hpLg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 216.228.117.161) smtp.rcpttodomain=lists.infradead.org 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=VZh7ZQsu6wXe71RiKkNG/LgBAOZ30KFVhwYqOJyWR/U=; b=ltVJGMly3csqZVMRnGuY1uGZbqFe5nFJ+c5K3UaSRuAcr+15gWbt27HHYFgQIDDUu/AG/Yu+oAVs4bTu3N5yBcMWMUvXppNG9L053v8JmPWnK3hfG1PRatZ/icnZL/zoF2FTfTdpkcGLUrWmvNWURmCewHEJWa330iHFHLk3fELr0L4W33tmhlV+yEbCqE5QHRmOu+cgi9UwIWUBm2nLWvRFX5spYvm2qP/rcUfa3XBN1wIy8vNPwDL7n9fmleAlAisdfqvbLqrnedShjun+qfNQRXXZAN3Fod3uNqq71yJTYJ80gLyVninyue4BGI8OgbXYyKbIzLX3owM9OdsZXw== Received: from BN1PR10CA0003.namprd10.prod.outlook.com (2603:10b6:408:e0::8) by SJ1PR12MB6243.namprd12.prod.outlook.com (2603:10b6:a03:456::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6043.25; Fri, 27 Jan 2023 20:05:04 +0000 Received: from BN8NAM11FT110.eop-nam11.prod.protection.outlook.com (2603:10b6:408:e0:cafe::b6) by BN1PR10CA0003.outlook.office365.com (2603:10b6:408:e0::8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6043.22 via Frontend Transport; Fri, 27 Jan 2023 20:05:03 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 216.228.117.161) 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 216.228.117.161 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.117.161; helo=mail.nvidia.com; pr=C Received: from mail.nvidia.com (216.228.117.161) by BN8NAM11FT110.mail.protection.outlook.com (10.13.176.156) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6043.22 via Frontend Transport; Fri, 27 Jan 2023 20:05:03 +0000 Received: from rnnvmail204.nvidia.com (10.129.68.6) by mail.nvidia.com (10.129.200.67) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.36; Fri, 27 Jan 2023 12:04:55 -0800 Received: from rnnvmail205.nvidia.com (10.129.68.10) 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 15.2.986.36; Fri, 27 Jan 2023 12:04:54 -0800 Received: from Asurada-Nvidia.nvidia.com (10.127.8.12) by mail.nvidia.com (10.129.68.10) with Microsoft SMTP Server id 15.2.986.36 via Frontend Transport; Fri, 27 Jan 2023 12:04:53 -0800 From: Nicolin Chen To: , , , , , , , , , , , , Subject: [PATCH 0/4] iommu: Reject drivers with broken_unmanaged_domain Date: Fri, 27 Jan 2023 12:04:16 -0800 Message-ID: X-Mailer: git-send-email 2.39.1 MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN8NAM11FT110:EE_|SJ1PR12MB6243:EE_ X-MS-Office365-Filtering-Correlation-Id: e9962505-562e-442e-2012-08db00a1c760 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:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230025)(4636009)(39860400002)(136003)(376002)(396003)(346002)(451199018)(40470700004)(46966006)(36840700001)(7696005)(26005)(186003)(6666004)(478600001)(2616005)(2906002)(336012)(966005)(47076005)(426003)(4326008)(110136005)(316002)(83380400001)(70586007)(8676002)(70206006)(54906003)(41300700001)(7416002)(8936002)(5660300002)(36860700001)(356005)(40460700003)(7636003)(82740400003)(921005)(82310400005)(86362001)(36756003)(40480700001);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Jan 2023 20:05:03.5726 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e9962505-562e-442e-2012-08db00a1c760 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN8NAM11FT110.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ1PR12MB6243 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230127_120508_661380_D1665316 X-CRM114-Status: GOOD ( 10.72 ) 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: , Cc: kvm@vger.kernel.org, iommu@lists.linux.dev, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, jonathanh@nvidia.com, linux-mediatek@lists.infradead.org, linux-tegra@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi all, Both IOMMU_DOMAIN_UNMANAGED and IOMMU_DOMAIN_DMA require the support of __IOMMU_DOMAIN_PAGING capability, i.e. iommu_map/unmap. However, some older iommu drivers do not fully support that, and these drivers also do not advertise support for dma-iommu.c via IOMMU_DOMAIN_DMA, or use arm_iommu_create_mapping(), so largely their implementations of IOMMU_DOMAIN_UNMANAGED are untested. This means that a user like vfio/iommufd does not likely work with them. Thus, mark all these drivers as having "broken" UNAMANGED domains and add a new device_iommu_unmanaged_supported() API for vfio/iommufd and dma-iommu to refuse to work with these drivers. These are preparatory changes for a new IOMMU API that will be used by iommufd. Having this flag allows us to prevent any use of the new API in iommufd, to keep things clean. You can also find this series on Github: https://github.com/nicolinc/iommufd/commits/broken_unmanaged_domain Thank you Nicolin Chen Nicolin Chen (4): iommu: Add a broken_unmanaged_domain flag in iommu_ops iommu/dma: Do not init domain if broken_unmanaged_domain iommufd: Do not allocate device object if broken_unmanaged_domain vfio: Do not allocate domain if broken_unmanaged_domain drivers/iommu/dma-iommu.c | 3 +++ drivers/iommu/fsl_pamu_domain.c | 1 + drivers/iommu/iommu.c | 24 ++++++++++++++++++++++++ drivers/iommu/iommufd/device.c | 3 +++ drivers/iommu/msm_iommu.c | 1 + drivers/iommu/mtk_iommu_v1.c | 1 + drivers/iommu/omap-iommu.c | 1 + drivers/iommu/tegra-gart.c | 1 + drivers/iommu/tegra-smmu.c | 1 + drivers/vfio/vfio_iommu_type1.c | 5 ++++- include/linux/iommu.h | 11 +++++++++++ 11 files changed, 51 insertions(+), 1 deletion(-)