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| author | Nicolin Chen <nicolinc@nvidia.com> | 2024-11-05 23:04:20 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2024-11-12 18:46:18 +0300 |
| commit | d56d1e8405a9e154a30f4a055eb7ef55516b32b0 (patch) | |
| tree | 43779b406e16652abb8de05a73c1ff95d4327cea /tools/perf/scripts/python/stackcollapse.py | |
| parent | 6b22d562fcd6e3d1cc1c265b0596840946d16a09 (diff) | |
| download | linux-d56d1e8405a9e154a30f4a055eb7ef55516b32b0.tar.xz | |
iommufd: Verify object in iommufd_object_finalize/abort()
To support driver-allocated vIOMMU objects, it's required for IOMMU driver
to call the provided iommufd_viommu_alloc helper to embed the core struct.
However, there is no guarantee that every driver will call it and allocate
objects properly.
Make the iommufd_object_finalize/abort functions more robust to verify if
the xarray slot indexed by the input obj->id is having an XA_ZERO_ENTRY,
which is the reserved value stored by xa_alloc via iommufd_object_alloc.
Link: https://patch.msgid.link/r/334bd4dde8e0a88eb30fa67eeef61827cdb546f9.1730836219.git.nicolinc@nvidia.com
Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions