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Mon, 21 Oct 2024 17:20:33 -0700 From: Nicolin Chen To: , , CC: , , , , , , , , , , , , , , , , , , , Subject: [PATCH v4 05/14] iommufd/hw_pagetable: Enforce cache invalidation op on vIOMMU-based hwpt_nested Date: Mon, 21 Oct 2024 17:20:14 -0700 Message-ID: X-Mailer: git-send-email 2.43.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL02EPF0001A101:EE_|CH2PR12MB4231:EE_ X-MS-Office365-Filtering-Correlation-Id: 8e1b31bb-5586-43ba-979a-08dcf22f62a1 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|36860700013|1800799024|82310400026; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?XtleWZAdQbBFx8GbESclpaYFe0LPxtvVQv2J3ULamReC74jeH5vF8H9fPxDb?= =?us-ascii?Q?uA88JCGbTlxTawGu93ymMMrPz53dVN3YyUZMmgp7asHxDVAKu3K9j36jvcQX?= =?us-ascii?Q?XYcfCkN71rH3Ouf04vfphwEXY5cJOqK+j1IV2EzKVL0Hbgnqna/p3e7iXQor?= =?us-ascii?Q?C04u9CmiHoD83Ee6WaDW099fWjQc7U+/yWvA4EU/uANK+iRY6CcUnNBgTPCJ?= =?us-ascii?Q?lRG8a9E4MoD2j4ttgFpW2xA/wYrd2R5CfhV2hKTqE7BKIFkwyAv43s1SUYNY?= =?us-ascii?Q?lGprdtkuu5y3adWwEsCnSOH6bn9lNvQ5Cg2oflR/oFO/GyL8ovROC33PMQV3?= =?us-ascii?Q?zmWU46zKfzgh3RrBKgoSpJ1IyH90mtoCzGR70U/62h4xse1+PRmUYGTlLrxW?= =?us-ascii?Q?wYcmFlQwvT+Xj4IXErplpMLPdM7RfH3kIYIBkqFiHeFkot0uvC6LNUPUIhFl?= =?us-ascii?Q?Scm44vpVNBwU5v8Ow43bBL3u0g51uq6Z7yF0jKM03tgRRcjLHHiMcEJHRkcL?= =?us-ascii?Q?JzsuklOK+dLrCF3XVQonWPlvWPfSjG7CwZkLj5hNhup6qZThg2q+6RE4nKNX?= =?us-ascii?Q?7haStd/lGpFaXXogzWcfBxsa+qokFAxvF/z8qQrMv0VJuPQWXZQdMiX9nM8u?= =?us-ascii?Q?Zk4KAH1aZcLSVdHrRZsiAfLGRajQ3TKZmjGs7DNSojrNdaV8t6+r8IBorqmi?= =?us-ascii?Q?tbxfvw1AeBDyPjCjofLoVd+cnj64+LFpoecPEHOb77kHz2MEUa+IP5PGP7po?= =?us-ascii?Q?QR/XoWSUYcc/VKOSqa3SOIFFQJpYlb0nMX3e/HzeeJ90uvwDAiAYtAgQDRzL?= =?us-ascii?Q?NdgXOJ/4Qu6M8k1hAz3mb7bzu0hOk7pCccW9GJx8hDNRfqqXfO+eejoeglFc?= =?us-ascii?Q?D/oPQfu4kGItXk+TSFqRLKRa25Vi5Vgo1/z2HnY6wWabW+oYb11sQ+wewyzC?= =?us-ascii?Q?Qwj/kkbVS3BYUJEvrTDgmWjeB2pSrsppOHjQlE9azsXJnFZfswouuwakVKVg?= =?us-ascii?Q?jZfizScCzoNPAUeTzF7hJ1iIpCijmge9Mj+iyAdhORykaJMzPW4dKdPsxlOl?= =?us-ascii?Q?O4tq6YT0Vjuq1Hk/DfJys+jWyk3x1PmnRxr9nGQYq6FwFUQPy4j45CZlwjJn?= =?us-ascii?Q?Dsd18/1nbjTzklYDp344E98Fex5gqFCrzB85IypfX2kfrwNuD+WXY3dHpkpz?= =?us-ascii?Q?HGrmOD0kwTsCAbcBJGrsZUpbSG3XoxMDOHah/GLGPUJBouaz0GAgeyHSYarb?= =?us-ascii?Q?00Vmk/x2O+ZIZTl5F29JBLdp573e2CjsMpgH5e6N6xBAJ+EZBJSfyuTr4nlB?= =?us-ascii?Q?ck0qM+V/ozuCGIw0bl091ek4WLP0NxAX3ox+mCQRUkunLOtMy1nE9Eg2FmZ+?= =?us-ascii?Q?ymU2pGDE6WSoOxmfG1416G57Dhcz1SDgUh9U0g7DZFECfTKasA=3D=3D?= 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:(13230040)(376014)(7416014)(36860700013)(1800799024)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Oct 2024 00:20:50.9878 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 8e1b31bb-5586-43ba-979a-08dcf22f62a1 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: BL02EPF0001A101.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH2PR12MB4231 Content-Type: text/plain; charset="utf-8" A vIOMMU-based hwpt_nested requires a cache invalidation op too, either using the one in iommu_domain_ops or the one in viommu_ops. Enforce that upon the allocated hwpt_nested. Signed-off-by: Nicolin Chen --- drivers/iommu/iommufd/hw_pagetable.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/iommu/iommufd/hw_pagetable.c b/drivers/iommu/iommufd/h= w_pagetable.c index 5314cd486ddb..7af6cbe6dbf2 100644 --- a/drivers/iommu/iommufd/hw_pagetable.c +++ b/drivers/iommu/iommufd/hw_pagetable.c @@ -300,7 +300,9 @@ iommufd_hwpt_nested_alloc_for_viommu(struct iommufd_vio= mmu *viommu, } hwpt->domain->owner =3D viommu->iommu_dev->ops; =20 - if (WARN_ON_ONCE(hwpt->domain->type !=3D IOMMU_DOMAIN_NESTED)) { + if (WARN_ON_ONCE(hwpt->domain->type !=3D IOMMU_DOMAIN_NESTED || + (!viommu->ops->cache_invalidate && + !hwpt->domain->ops->cache_invalidate_user))) { rc =3D -EINVAL; goto out_abort; } --=20 2.43.0