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Thu, 24 Oct 2024 20:37:06 -0700 Date: Thu, 24 Oct 2024 20:37:05 -0700 From: Nicolin Chen To: , , CC: , , , , , , , , , , , , , , , , , , , Subject: Re: [PATCH v4 01/14] iommufd/viommu: Introduce IOMMUFD_OBJ_VDEVICE and its related struct Message-ID: References: Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY4PEPF0000EE35:EE_|SA1PR12MB9515:EE_ X-MS-Office365-Filtering-Correlation-Id: 302e74dd-c970-45f2-a173-08dcf4a6527c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700013|7416014|82310400026|376014|1800799024; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?+yzuM4q671pT7jNPb9kHaBhDr+aOVSbIi95WeN13/75jNItC5Wd8d4wjJkYP?= =?us-ascii?Q?j3CrYM291L+F6uYmM1aiUifwdhBhJwjb9JEWpJsgEGYhdMf3l4Y4T/CCbCd7?= =?us-ascii?Q?8ynwEjBkGXl+aaAmG10TJ6q8c6sS1z8uFBuns25nRvWh/y6Ri0wSOevyIKtB?= =?us-ascii?Q?xc2tLRLj8EKB53kENWzdXAPAxxvDuJ6xcPNKmDqemRkHx8YwMpwktgCpPQX1?= =?us-ascii?Q?OYkxRcuy6jQ+/Obcf0Fne2oqX18VIVAKZEME+cc60IhY9qK7qZugC3IcOXQD?= =?us-ascii?Q?gnTQiCCPQac2QD987lFl+yitYEY/WVAPqI+4wbpjKdXCEavz136szYq2M2h7?= =?us-ascii?Q?Fe4EWhaWRKCAUZkzrd247dD+VQmYAO3D2K5hO9mdvLSBg9X7wDI5PaguqRhj?= =?us-ascii?Q?/RyZSjbXFGuzgiSsBvJDutlSNb++jVDV28rG+7UjjdJzhlBItCqW0u/j1T5r?= =?us-ascii?Q?CajjAoXlyf9QaFKT/eiw37B7RWllu2rEuPmagOCik00NGAOYvuz3oGQfkmzY?= =?us-ascii?Q?I/oFpcazNEBA0sYJVW1LuvhOSQYCQYUDsgcoopQTn10KWRQxSRqQojZDghUq?= =?us-ascii?Q?QedJW5EZpavJBBvalLW12xuKJQD3xfJJql2IrlSEHElO4R80YZg9bauJOMSB?= =?us-ascii?Q?nYKyllm6QwbYOpBq6SSlCV4k1X9/COOBj3eFL4FUUWbLh76g6eV3rw0+1bNf?= =?us-ascii?Q?YF7kCIdI6ttBZPjnaKxWftq9sZgupU80i56MRz60tlc8ksnvaxZglEEOcSVV?= =?us-ascii?Q?QHFvjwEjTI0Ug36nKnZKPnenD24NnWccFjXs/ClJ5Tl8VYLvbeD9BzR2W2S0?= =?us-ascii?Q?5XJWp6QIwrwJjwwBZjKk13dZXsEnJf+CSSOn34UyXO6ji4qURCPG9khsvslU?= =?us-ascii?Q?Ycq/BudosQtJsyPLQ4fmX+czDvH7Xb8yFXcpTnBwEP3rFG8jF4YYdas+3lxl?= =?us-ascii?Q?H5rTvhgAujwNwFJvv8xzPeKuodgVV7mFjhSaoeHc6ZllWPLKdkyeW4zDAJka?= =?us-ascii?Q?1JYO4vwAQ1BwzkviuC9NqNdLbQWAUI0d4+8R4YsL01frkoRSvU4tvWQRiffH?= =?us-ascii?Q?HhGABaiP7KsFyeNHdo0ZLBfkAPYKD3y8y2/PS68l08PvVnlfqKyx/guSRZAS?= =?us-ascii?Q?DPNNyz2nlTkG+rABLa7KdxtU6l6t27SyfzOrpIPyetjd+Ha9J8fjxqgVHjDA?= =?us-ascii?Q?JUKGTvJHqqGzpfwDo+i5/sc+849ygdRTI1S12oeFitcC/Z2z+WQDtnS6oDz9?= =?us-ascii?Q?3wSrNsHRzJFup3Fk0tYavEddCM5JbFsnMdV3MWGWBqZ6Y1km++X9AQmxtfzZ?= =?us-ascii?Q?gysJ58aonWCEYZDaFvKTLAgpC6PBPSWXxQKMIqy9eTefuXa5mThVaiZaO4zL?= =?us-ascii?Q?OdRKa8LbMUhgt1vsDaW7cjJsQfSORyVfzclDV2MnWkJsKb7VUA=3D=3D?= X-Forefront-Antispam-Report: CIP:216.228.118.232;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge1.nvidia.com;CAT:NONE;SFS:(13230040)(36860700013)(7416014)(82310400026)(376014)(1800799024);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Oct 2024 03:37:16.4947 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 302e74dd-c970-45f2-a173-08dcf4a6527c X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.232];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CY4PEPF0000EE35.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA1PR12MB9515 On Mon, Oct 21, 2024 at 05:20:10PM -0700, Nicolin Chen wrote: > struct iommufd_viommu_ops { > + struct iommufd_vdevice *(*vdevice_alloc)(struct iommufd_viommu *viommu, > + struct device *dev, u64 id); > + void (*vdevice_free)(struct iommufd_vdevice *vdev); ... > +#define iommufd_vdevice_alloc(ictx, drv_struct, member) \ > + ({ \ > + static_assert( \ > + __same_type(struct iommufd_vdevice, \ > + ((struct drv_struct *)NULL)->member)); \ > + static_assert(offsetof(struct drv_struct, member.obj) == 0); \ > + container_of(_iommufd_object_alloc(ictx, \ > + sizeof(struct drv_struct), \ > + IOMMUFD_OBJ_VDEVICE), \ > + struct drv_struct, member.obj); \ > + }) Per discussion in vIRQ series [1], we might not need to expose struct iommufd_vdevice. So, dropping most of the changes here, and moving iommufd_device to the private header. [1] https://lore.kernel.org/linux-iommu/ZxlGfgfwrGZGIbeF@Asurada-Nvidia/ Nicolin