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Mon, 21 Apr 2025 08:35:23 -0700 Date: Mon, 21 Apr 2025 08:35:22 -0700 From: Nicolin Chen To: "Tian, Kevin" CC: "jgg@nvidia.com" , "corbet@lwn.net" , "will@kernel.org" , "robin.murphy@arm.com" , "joro@8bytes.org" , "thierry.reding@gmail.com" , "vdumpa@nvidia.com" , "jonathanh@nvidia.com" , "shuah@kernel.org" , "praan@google.com" , "nathan@kernel.org" , "peterz@infradead.org" , "Liu, Yi L" , "jsnitsel@redhat.com" , "mshavit@google.com" , "zhangzekun11@huawei.com" , "iommu@lists.linux.dev" , "linux-doc@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-tegra@vger.kernel.org" , "linux-kselftest@vger.kernel.org" , "patches@lists.linux.dev" Subject: Re: [PATCH v1 07/16] iommufd/viommu: Add driver-allocated vDEVICE support Message-ID: References: <349fa2c4c291488bb5bae6e4a8bc0dcbd0c51fd4.1744353300.git.nicolinc@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: X-NV-OnPremToCloud: AnonymousSubmission X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL6PEPF00020E62:EE_|BN7PPF9507C739C:EE_ X-MS-Office365-Filtering-Correlation-Id: 68e2e686-c355-464b-16af-08dd80ea2d05 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700013|1800799024|7416014|376014|82310400026; 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X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Apr 2025 15:35:42.0614 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 68e2e686-c355-464b-16af-08dd80ea2d05 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: BL6PEPF00020E62.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN7PPF9507C739C X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250421_083549_653929_5C92BD82 X-CRM114-Status: GOOD ( 10.58 ) 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 On Mon, Apr 21, 2025 at 08:00:37AM +0000, Tian, Kevin wrote: > > From: Nicolin Chen > > Sent: Friday, April 11, 2025 2:38 PM > > > > @@ -128,6 +142,9 @@ struct iommufd_viommu_ops { > > const struct iommu_user_data *user_data); > > int (*cache_invalidate)(struct iommufd_viommu *viommu, > > struct iommu_user_data_array *array); > > + struct iommufd_vdevice *(*vdevice_alloc)(struct iommufd_viommu > > *viommu, > > + struct device *dev, u64 id); > > s/id/virt_id/ would be clearer. OK. @@ -143,7 +143,8 @@ struct iommufd_viommu_ops { int (*cache_invalidate)(struct iommufd_viommu *viommu, struct iommu_user_data_array *array); struct iommufd_vdevice *(*vdevice_alloc)(struct iommufd_viommu *viommu, - struct device *dev, u64 id); + struct device *dev, + u64 virt_id); void (*vdevice_destroy)(struct iommufd_vdevice *vdev); }; Thanks Nicolin