Re: [PATCH v2 0/4] vfio-pci support pasid attach/detach

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On Fri, Aug 16, 2024 at 05:31:31PM +0530, Vasant Hegde wrote:
> > I see. So AMD side also has a gap. Is it easy to make it suit Jason's
> > suggestion in the above?
> 
> We can do that. We can enable ATS, PRI and PASID capability during probe time
> and keep it enabled always.

I don't see a downside to enabling PASID at probe time, it exists to
handshake with the device if the root complex is able to understand
PASID TLPs.

SMMU3 calls 
 arm_smmu_probe_device
  arm_smmu_enable_pasid
   pci_enable_pasid

So it looks Ok

Jason




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