Re: [PATCH v2 1/1] iommu/vt-d: Drain PRQs when domain removed from RID

[Yi Liu]

On 2024/11/1 12:55, Lu Baolu wrote:
> As this iommu driver now supports page faults for requests without
> PASID, page requests should be drained when a domain is removed from
> the RID2PASID entry.
>
> This results in the intel_iommu_drain_pasid_prq() call being moved to
> intel_pasid_tear_down_entry(). This indicates that when a translation
> is removed from any PASID entry and the PRI has been enabled on the
> device, page requests are drained in the domain detachment path.
>
> The intel_iommu_drain_pasid_prq() helper has been modified to support
> sending device TLB invalidation requests for both PASID and non-PASID
> cases.
>
> Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
> ---
>   drivers/iommu/intel/iommu.c |  1 -
>   drivers/iommu/intel/pasid.c |  1 +
>   drivers/iommu/intel/prq.c   | 26 +++++++++-----------------
>   3 files changed, 10 insertions(+), 18 deletions(-)

Reviewed-by: Yi Liu <yi.l.liu@xxxxxxxxx>

--
Regards,
Yi Liu