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| author | Lu Baolu <[email protected]> | 2021-03-30 10:11:45 +0800 |
|---|---|---|
| committer | Joerg Roedel <[email protected]> | 2021-04-07 10:41:30 +0200 |
| commit | 6c00612d0cba10f7d0917cf1f73c945003ed4cd7 (patch) | |
| tree | 609a53c28c4a3dce6c9c90f6ddc61ab50fcc81be /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 442b81836d6fdde1cf7dc5fc437a5f770c84498b (diff) | |
iommu/vt-d: Report right snoop capability when using FL for IOVA
The Intel VT-d driver checks wrong register to report snoop capablility
when using first level page table for GPA to HPA translation. This might
lead the IOMMU driver to say that it supports snooping control, but in
reality, it does not. Fix this by always setting PASID-table-entry.PGSNP
whenever a pasid entry is setting up for GPA to HPA translation so that
the IOMMU driver could report snoop capability as long as it runs in the
scalable mode.
Fixes: b802d070a52a1 ("iommu/vt-d: Use iova over first level")
Suggested-by: Rajesh Sankaran <[email protected]>
Suggested-by: Kevin Tian <[email protected]>
Suggested-by: Ashok Raj <[email protected]>
Signed-off-by: Lu Baolu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Joerg Roedel <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions