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Mon, 17 Nov 2025 22:53:29 -0800 Date: Mon, 17 Nov 2025 22:53:28 -0800 From: Nicolin Chen To: Baolu Lu CC: "Tian, Kevin" , "joro@8bytes.org" , "afael@kernel.org" , "bhelgaas@google.com" , "alex@shazbot.org" , "jgg@nvidia.com" , "will@kernel.org" , "robin.murphy@arm.com" , "lenb@kernel.org" , "linux-arm-kernel@lists.infradead.org" , "iommu@lists.linux.dev" , "linux-kernel@vger.kernel.org" , "linux-acpi@vger.kernel.org" , "linux-pci@vger.kernel.org" , "kvm@vger.kernel.org" , "patches@lists.linux.dev" , "Jaroszynski, Piotr" , "Sethi, Vikram" , "helgaas@kernel.org" , "etzhao1900@gmail.com" Subject: Re: [PATCH v5 5/5] pci: Suspend iommu function prior to resetting a device Message-ID: References: <4eeda61a-c71d-4ad1-8ac7-a14942f7a864@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: <4eeda61a-c71d-4ad1-8ac7-a14942f7a864@linux.intel.com> X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MWH0EPF000A6733:EE_|LV3PR12MB9268:EE_ X-MS-Office365-Filtering-Correlation-Id: f2de03f8-b0ce-41f4-4208-08de266f38fe X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|82310400026|376014|7416014|36860700013; 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X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Nov 2025 06:53:47.1575 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f2de03f8-b0ce-41f4-4208-08de266f38fe 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: MWH0EPF000A6733.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV3PR12MB9268 On Tue, Nov 18, 2025 at 01:38:40PM +0800, Baolu Lu wrote: > The VT-d driver enables ATS in the iommu probe_finalize() path (for > scalable mode). .. > iommu_enable_pci_ats() will eventually call pci_enable_ats() after some > necessary checks. Oh, I missed that one. Thanks! Nicolin