Re: [PATCH v10 04/16] iommu: Cleanup iopf data structure definitions

Jason Gunthorpe
2024-01-25T13:44:32Z

On Thu, Jan 25, 2024 at 07:33:45PM +0800, Baolu Lu wrote:
> > check. Is the drop intended? and if so, should we just get rid of
> > IOMMU_PAGE_RESP_PASID_VALID?
>
> In my opinion, we should keep this hardware detail in the individual
> driver. When the page fault handling framework in IOMMU and IOMMUFD
> subsystems includes a valid PASID in the fault message, the response
> message should also contain the *same* PASID value. Individual drivers
> should be responsible for deciding whether to include the PASID in the
> messages they provide for the hardware.

+1

Jason