Re: FW: About the patch ”https://lore.kernel.org/linux-iommu/20240412082121.33382-1-yi.l.liu@xxxxxxxxx/ “ for help

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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




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