On 1/4/25 03:43, Nicolin Chen wrote:
Introduce a new IOMMUFD_OBJ_VEVENTQ object for vIOMMU Event Queue that provides user space (VMM) another FD to read the vIOMMU Events.
Allow a vIOMMU object to allocate vEVENTQs, with a condition that each vIOMMU can only have one single vEVENTQ per type.
Add iommufd_veventq_alloc() with iommufd_veventq_ops for the new ioctl.
Signed-off-by: Nicolin Chennicolinc@nvidia.com
drivers/iommu/iommufd/iommufd_private.h | 58 +++++++++++ include/linux/iommufd.h | 3 + include/uapi/linux/iommufd.h | 31 ++++++ drivers/iommu/iommufd/eventq.c | 129 ++++++++++++++++++++++++ drivers/iommu/iommufd/main.c | 7 ++ drivers/iommu/iommufd/viommu.c | 2 + 6 files changed, 230 insertions(+)
Reviewed-by: Lu Baolu baolu.lu@linux.intel.com