iommufd/selftest: Add some tests for the dmabuf flow

Basic tests of establishing a dmabuf and revoking it. The selftest kernel
side provides a basic small dmabuf for this testing.

Link: https://patch.msgid.link/r/9-v2-b2c110338e3f+5c2-iommufd_dmabuf_jgg@nvidia.com
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Jason Gunthorpe 2025-11-21 11:51:06 -04:00
commit d2041f1f11
6 changed files with 254 additions and 0 deletions