iommufd: Add iommufd_group

When the hwpt to device attachment is fairly static we could get away with
the simple approach of keeping track of the groups via a device list. But
with replace this is infeasible.

Add an automatically managed struct that is 1:1 with the iommu_group
per-ictx so we can store the necessary tracking information there.

Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Lu Baolu <[email protected]>
Reviewed-by: Kevin Tian <[email protected]>
Tested-by: Nicolin Chen <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>

0 files changed, 0 insertions, 0 deletions