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Subject[PATCH v2 0/2] iommu: Fix domain check on release (part 1/2)
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This is a follow-up to the discussion thread here:

https://lore.kernel.org/linux-iommu/20240221154012.GC13491@ziepe.ca/

It fixes a NULL pointer dereference issue in the Intel iommu driver and
strengthens the iommu core to possibly prevent similar failures in other
iommu drivers.

There are two parts of this topic:
[x] Introduce release_domain and fix a kernel NULL pointer dereference
issue in the intel iommu driver.
[ ] A follow-up series to cleanup intel iommu driver.

Best regards,
baolu

Change log:

v2:
- The scalable mode context entry should be removed in the release path
as it's not part of the blocking domain.

v1: https://lore.kernel.org/linux-iommu/20240223051302.177596-1-baolu.lu@linux.intel.com/

Lu Baolu (2):
iommu: Add static iommu_ops->release_domain
iommu/vt-d: Fix NULL domain on device release

include/linux/iommu.h | 1 +
drivers/iommu/intel/pasid.h | 1 +
drivers/iommu/intel/iommu.c | 31 +++-----------
drivers/iommu/intel/pasid.c | 83 +++++++++++++++++++++++++++++++++++++
drivers/iommu/iommu.c | 19 +++++++--
5 files changed, 106 insertions(+), 29 deletions(-)

--
2.34.1


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