> From: Nicolin Chen <nicolinc@xxxxxxxxxx> > Sent: Saturday, October 26, 2024 7:51 AM > > With a vIOMMU object, use space can flush any IOMMU related cache that > can > be directed via a vIOMMU object. It is similar to the > IOMMU_HWPT_INVALIDATE > uAPI, but can cover a wider range than IOTLB, e.g. device/desciprtor cache. > > Allow hwpt_id of the iommu_hwpt_invalidate structure to carry a viommu_id, > and reuse the IOMMU_HWPT_INVALIDATE uAPI for vIOMMU invalidations. > Drivers > can define different structures for vIOMMU invalidations v.s. HWPT ones. > > Update the uAPI, kdoc, and selftest case accordingly. > > Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx> > Signed-off-by: Nicolin Chen <nicolinc@xxxxxxxxxx> Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
