[PATCH v2 02/19] iommufd/viommu: Add IOMMUFD_OBJ_VIOMMU and IOMMU_VIOMMU_ALLOC ioctl

[Jason Gunthorpe]

On Wed, Sep 11, 2024 at 08:39:57PM -0700, Nicolin Chen wrote:

> You mentioned that actually only the iommufd selftest might hit such
> a corner case, so perhaps we should do something in the selftest code
> v.s. the iommu core. What do you think?

Maybe, if there were viommu allocation callbacks maybe those can pin
the memory in the selftest..

Jason