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Tue, 23 Jul 2024 04:01:18 +0000 Message-ID: <859fc583-6aca-4311-ad9c-ffbea68c5b17@intel.com> Date: Tue, 23 Jul 2024 12:05:30 +0800 User-Agent: Mozilla Thunderbird Subject: =?UTF-8?Q?Re=3A_FW=3A_About_the_patch_=E2=80=9Dhttps=3A//lore=2Eker?= =?UTF-8?Q?nel=2Eorg/linux-iommu/20240412082121=2E33382-1-yi=2El=2Eliu=40int?= =?UTF-8?Q?el=2Ecom/_=E2=80=9C_for_help?= To: XueMei Yue , "iommu@lists.linux.dev" , "alex.williamson@redhat.com" , "robin.murphy@arm.com" , "eric.auger@redhat.com" , "nicolinc@nvidia.com" , "kvm@vger.kernel.org" , "chao.p.peng@linux.intel.com" , "baolu.lu@linux.intel.com" , "joro@8bytes.org" , Suravee Suthikulpanit References: <903517d3-7a65-4269-939c-6033d57f2619@intel.com> Content-Language: en-US From: Yi Liu In-Reply-To: Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 8bit X-ClientProxiedBy: SI1PR02CA0014.apcprd02.prod.outlook.com (2603:1096:4:1f7::9) To DS0PR11MB7529.namprd11.prod.outlook.com (2603:10b6:8:141::20) Precedence: bulk X-Mailing-List: iommu@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS0PR11MB7529:EE_|CH3PR11MB8657:EE_ X-MS-Office365-Filtering-Correlation-Id: b929ffcd-bca8-44b5-41eb-08dcaacc1b25 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|376014|7416014|366016|921020|220923002; 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BTW. A heads up: you are looping the mailing list, so you'd better use the plain text format and avoid including pictures if it can be expressed by text. > " I don't think the AMD iommu driver has supported the set_dev_pasid callback for the non-SVA domains." > ------ xuemei : So if I want to use the PASID to test PCIE ATS request messages,could you give some suggestions ? usr SVA domain can solve thie issue ? You should not mix ATS with PASID, ATS does not rely on PASID. You should be able to test ATS without PASID. ATS is a performance feature, so if you want to test it in system level, you need a benchmark to do it. Or you can test it in pci transaction level, you would need tools for it then. It's up to you. -- Regards, Yi Liu