On 2023/12/22 14:04, Tian, Kevin wrote:
From: Liu, Yi L <yi.l.liu@xxxxxxxxx>
Sent: Thursday, December 21, 2023 11:40 PM
From: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
This makes the pasid based cache invalidation to return QI faults to callers.
it's not just for pasid cache invalidation, e.g. there is also change on
qi_flush_dev_iotlb().
yes, it is. May be as below:
This makes the pasid based cache invalidation and device TLB invalidation
to return QI faults to callers.
Then the subject may be:
iommu/vt-d: Convert stage-1 cache invalidation to return QI fault
This is needed when usersapce wants to invalidate cache after modifying the
stage-1 page table used in nested translation.
Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
Signed-off-by: Yi Liu <yi.l.liu@xxxxxxxxx>
Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
--
Regards,
Yi Liu
