A couple additional sysfs entries for intel-iommu. The number of
domains supported and superpages available can all be picked from the
value of the VT-d capability register that we already print, but it's
much more accessible when split out to human readable values. The
domain IDs usage makes testing for leaks far more accessible. Older
hardware that only supports an 8-bit domain ID might stumble over
some leaks in testing, but newer hardware with 16-bit domain IDs may
hide issues for a long time. Besides, it's interesting, geeky data.
Thanks,
Alex
---
Alex Williamson (2):
iommu/vt-d: Report domain usage in sysfs
iommu/vt-d: Report superpage support in sysfs
drivers/iommu/intel-iommu.c | 43 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 43 insertions(+)
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