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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?J4a1aQRgLjZ5/r26PRlRMaaHhrCGdlCbZp35fspBBVVnMh7y54gEbSVd/AU7?= =?us-ascii?Q?1vQToPd2jbCn0D7VLlT9MPpvVhBuMMe97WI1nnGFWbkcja5/mTAdtawoxjwz?= =?us-ascii?Q?kqlTKNy76G+lhid9bILkQ2NGb9j3KMIJK1xl3opNuMblg448W30hwu/M2St3?= =?us-ascii?Q?+zL6k12S3xV7e8U7vVE9pzsFozCaKljtIJ/JDC2zKm1FgvhdjPqqd4upqwUT?= =?us-ascii?Q?u4nrsk6k5xR5su1hKuF3T9M4c/N/fHxsJ0YcpdDx/wt+6J8q37S8LB+ig/WL?= =?us-ascii?Q?ZJII6R73LIQ4Oi3vGWkvCoBoKOVSocN3orzQckiZkFualWmHJ+XiC9xIbTlg?= =?us-ascii?Q?nt8ePpOY/1x+GRmfmRaZ+0vBYx+j+6U9fn19csL3JSb2rGKR1MQ0iyVWkZPf?= =?us-ascii?Q?hLIgwhwsOajL0tsK8X/geaYZnir1RRZUwZlBdSvubTLP61H6q4egLoOPagmq?= =?us-ascii?Q?sMuwmhSi9T8KAQb7EMS3UikHHeHhWmw5pOB1+aycyFrNCb1Gqbrff2mJmZp4?= =?us-ascii?Q?hiRkCIM3rEWfZhy+HAApV85fjCe3NuqEggRUN0w26VgKLHVsu2uefkuFOdVy?= =?us-ascii?Q?47RYGWNY6c0zmCWrlWjcidmSVcWyytA8K1GT2kOicUQShwRmf1/6dfTsJt6K?= =?us-ascii?Q?SFGgrmcHxLbk4FoKmUFPxc2KrWtGfrC5B9kq0xebLEW4zUxgzlhIUuHY0zu8?= =?us-ascii?Q?qb88YrlhEfmu32nDk7p1X/coW0P0JY8quJl3SfwWjW1j9RMyXWqn0FEwRLwb?= =?us-ascii?Q?lUjuxgkVDE3eAstXmOfXEL9qicQ3STOXosXZUxX+bc3vxBSi1Mrw/5MD422S?= =?us-ascii?Q?U8R1syjMxPQQubp+PHvrzaoXgpBrV9xkoeTLlQJ13TEDwz+WtzrNapAaVuy8?= =?us-ascii?Q?K2LNl/Qwci5+EZj3rrqF4Cjjte/OZsCT+3lTMDUrZ0BgXASH2rVWAMyuFE1k?= =?us-ascii?Q?eBlhC2iuVbMMa67/D8DL6zcNGV7v3hVpVUB77KnBq1rR5OeYwiC080nDP6+u?= =?us-ascii?Q?EvcZXi6SXXF8rMlS/v1KJfaogj1x59w9JfCzUUPl+fZiP/CYaXAuKpXTO1ab?= =?us-ascii?Q?lO6qbxre3Vk+g2xRrh6Sjz8yNc9tuEj0nN/K6fr4gWyxIg8taADZDeJkm8YF?= =?us-ascii?Q?rUuHOzaGGfmdXT/TCE8ME8JmwZUubkAmq+8uoy5lUyjogAyZQSijVvqMtlXA?= =?us-ascii?Q?d7UmfNN091ato5wK6maGUGCTGEfFozXtH5cCtWpbNbPXFWOwPwrI1jgP6Nk9?= =?us-ascii?Q?3aerrb15S0YWYthYVKdKEfiWMPlWKa7mXF1sWqe5PkgUzWeprUkn0CPlsOci?= =?us-ascii?Q?21K04qYXgFhWLbyYAdmWuIBjo0D9UPmPdiTTzhNNUjvkw+hf0yR2kgkxH0K8?= =?us-ascii?Q?oW/ud5lC8fntV1Zc6caY8yYTNHHj+nIPhi9BSGJIB09rNm90AfK66kLM7IZ6?= =?us-ascii?Q?B2vqS4BZc3SUbBO7HHF2i3pZMtZ+A7EHduxRDkl3lNTjuz6mhboa3/9D+fIT?= =?us-ascii?Q?evWNGg47zKhbAaaPMPXxPk5A1QeF4MJLeYrmrQZGXuUf58k0swB9Y0xI+BCq?= =?us-ascii?Q?UqgGU/NGKgUo6eokbA3CwdgQBvXkgT9olE7a9uC7?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 6e4e5986-3fc8-4acd-343e-08dcb22de0fc X-MS-Exchange-CrossTenant-AuthSource: CH3PR12MB7763.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 Aug 2024 13:28:49.8616 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: wm8YqeIxAwGFyWAKOt0kQMh8uIaaV8n7ySkX8JK0Hzg1KSB7dWVYxMzPf52Miq20 X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN0PR12MB5786 On Wed, Jul 31, 2024 at 11:23:24AM -0700, Nicolin Chen wrote: > > If we really want to go this route I wonder whether a per-IOMMU > > get_resv_regions() API should first exist then there is a clear definition > > what types are per-IOMMU and what are not. > > Probably it'd be necessary. But domains can cross IOMMU's as well, it is not per-iommu you are after but hardwired per-IOMMU driver type. What was the issue with trying to fix this on the nesting attach side? Jason