On Thu, Sep 28, 2023 at 12:15:23AM -0700, Yi Liu wrote: > diff --git a/include/uapi/linux/iommufd.h b/include/uapi/linux/iommufd.h > index b4ba0c0cbab6..4a7c5c8fdbb4 100644 > --- a/include/uapi/linux/iommufd.h > +++ b/include/uapi/linux/iommufd.h > @@ -347,10 +347,20 @@ struct iommu_vfio_ioas { > }; > #define IOMMU_VFIO_IOAS _IO(IOMMUFD_TYPE, IOMMUFD_CMD_VFIO_IOAS) > > +/** > + * enum iommufd_hwpt_alloc_flags - Flags for HWPT allocation > + * @IOMMU_HWPT_ALLOC_NEST_PARENT: If set, allocate a domain which can serve > + * as the parent domain in the nesting > + * configuration. I just noticed a nit here: we should probably align with other parts of this file by using "HWPT" v.s. "domain"? I.e. + * @IOMMU_HWPT_ALLOC_NEST_PARENT: If set, allocate a HWPT which can serve + * as the parent HWPT in the nesting + * configuration. Thanks Nic