On Sat, Feb 22, 2025 at 07:54:02AM -0800, 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. > > Reviewed-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx> > Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx> > Signed-off-by: Nicolin Chen <nicolinc@xxxxxxxxxx> > --- > drivers/iommu/iommufd/iommufd_private.h | 82 ++++++++++ > include/linux/iommufd.h | 3 + > include/uapi/linux/iommufd.h | 82 ++++++++++ > drivers/iommu/iommufd/eventq.c | 209 +++++++++++++++++++++++- > drivers/iommu/iommufd/main.c | 7 + > drivers/iommu/iommufd/viommu.c | 2 + > 6 files changed, 384 insertions(+), 1 deletion(-) Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx> Jason
