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Tue, 15 Jul 2025 12:03:58 -0700 Date: Tue, 15 Jul 2025 12:03:56 -0700 From: Nicolin Chen To: Xu Yilun CC: , , , , , , , , , , , , , Subject: Re: [PATCH v5 7/8] iommufd/selftest: Add coverage for vdevice tombstone Message-ID: References: <20250715063245.1799534-1-yilun.xu@linux.intel.com> <20250715063245.1799534-8-yilun.xu@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@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: <20250715063245.1799534-8-yilun.xu@linux.intel.com> X-NV-OnPremToCloud: AnonymousSubmission X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1PEPF000044F7:EE_|MN6PR12MB8515:EE_ X-MS-Office365-Filtering-Correlation-Id: d2601fc2-c3d1-4cc2-525a-08ddc3d264fa X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|36860700013|1800799024|7416014|376014|7053199007; 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X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Jul 2025 19:04:15.8134 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: d2601fc2-c3d1-4cc2-525a-08ddc3d264fa 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: CO1PEPF000044F7.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN6PR12MB8515 On Tue, Jul 15, 2025 at 02:32:44PM +0800, Xu Yilun wrote: > This tests the flow to tombstone vdevice when idevice is to be unbound > before vdevice destruction. The expected results of the tombstone are: > > - The vdevice ID can't be reused anymore (not tested in this patch). > - Even ioctl(IOMMU_DESTROY) can't free the vdevice ID. > - iommufd_fops_release() can still free everything. > > Signed-off-by: Xu Yilun Reviewed-by: Nicolin Chen