iommufd/device: Add pasid_attach array to track per-PASID attach

Browse source

PASIDs of PASID-capable device can be attached to hwpt separately, hence
a pasid array to track per-PASID attachment is necessary. The index
IOMMU_NO_PASID is used by the RID path. Hence drop the igroup->attach.

Link: https://patch.msgid.link/r/20250321171940.7213-10-yi.l.liu@intel.com
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

...

This commit is contained in:

Yi Liu 2025-03-21 10:19:31 -07:00 • committed by Jason Gunthorpe

parent 831b40f841

commit c0e301b297

2 changed files with 41 additions and 20 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

59

drivers/iommu/iommufd/device.c

View file

2

drivers/iommu/iommufd/iommufd_private.h

View file