On Wed, Apr 14, 2021 at 02:22:09PM +0800, Lu Baolu wrote: > I still worry about supervisor pasid allocation. > > If we use iommu_sva_alloc_pasid() to allocate a supervisor pasid, which > mm should the pasid be set? I've ever thought about passing &init_mm to > iommu_sva_alloc_pasid(). But if you add "mm != current->mm", this seems > not to work. Or do you prefer a separated interface for supervisor pasid > allocation/free?
Without a mm_struct it is not SVA, so don't use SVA APIs for whatever a 'supervisor pasid' is Jason _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
