On 1/4/25 03:43, Nicolin Chen wrote:
The fault object was designed exclusively for hwpt's IO page faults (PRI). But its queue implementation can be reused for other purposes too, such as hardware IRQ and event injections to user space.
Meanwhile, a fault object holds a list of faults. So it's more accurate to call it a "fault queue". Combining the reusing idea above, abstract a new iommufd_eventq as a common structure embedded into struct iommufd_fault, similar to hwpt_paging holding a common hwpt.
Add a common iommufd_eventq_ops and iommufd_eventq_init to prepare for an IOMMUFD_OBJ_VEVENTQ (vIOMMU Event Queue).
Also, add missing xa_destroy and mutex_destroy in iommufd_fault_destroy().
Signed-off-by: Nicolin Chennicolinc@nvidia.com
drivers/iommu/iommufd/iommufd_private.h | 52 ++++++--- drivers/iommu/iommufd/fault.c | 142 +++++++++++++++--------- drivers/iommu/iommufd/hw_pagetable.c | 6 +- 3 files changed, 130 insertions(+), 70 deletions(-)
Reviewed-by: Lu Baolu baolu.lu@linux.intel.com