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| author | Lu Baolu <baolu.lu@linux.intel.com> | 2021-03-20 10:54:13 +0800 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2021-04-07 11:55:47 +0200 |
| commit | c0474a606ecb9326227b4d68059942f9db88a897 (patch) | |
| tree | 4fda2b0c23bf96050e1faaac328b951a94327e64 /tools/perf/scripts/python/flamegraph.py | |
| parent | eea53c5816889ee8b64544fa2e9311a81184ff9c (diff) | |
iommu/vt-d: Invalidate PASID cache when root/context entry changed
When the Intel IOMMU is operating in the scalable mode, some information
from the root and context table may be used to tag entries in the PASID
cache. Software should invalidate the PASID-cache when changing root or
context table entries.
Suggested-by: Ashok Raj <ashok.raj@intel.com>
Fixes: 7373a8cc38197 ("iommu/vt-d: Setup context and enable RID2PASID support")
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20210320025415.641201-4-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'tools/perf/scripts/python/flamegraph.py')
0 files changed, 0 insertions, 0 deletions