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Wed, 24 Jul 2024 02:47:32 +0000 Received: from DS0PR11MB7529.namprd11.prod.outlook.com ([fe80::d244:15cd:1060:941a]) by DS0PR11MB7529.namprd11.prod.outlook.com ([fe80::d244:15cd:1060:941a%3]) with mapi id 15.20.7784.017; Wed, 24 Jul 2024 02:47:32 +0000 Message-ID: <034e27df-e67f-410f-93ce-ac7f3d05ded0@intel.com> Date: Wed, 24 Jul 2024 10:51:44 +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> <859fc583-6aca-4311-ad9c-ffbea68c5b17@intel.com> Content-Language: en-US From: Yi Liu In-Reply-To: Content-Type: text/plain; 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As I mentioned, the AMD driver does not support it yet. > -----Original Message----- > From: Yi Liu > Sent: 2024年7月23日 12:06 > 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 > Subject: Re: FW: About the patch ”https://lore.kernel.org/linux-iommu/20240412082121.33382-1-yi.l.liu@intel.com/ “ for help > > CAUTION: This email originated from outside of PetaIO. Do not click on links or open attachments unless you recognize the sender and know that the content is safe. > > > On 2024/7/23 11:22, XueMei Yue wrote: >> Thank you for your reply！ >> My pc has the PASID capability, See the attachment. > > ok. > > 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 -- Regards, Yi Liu