diff options
| author | Lu Baolu <[email protected]> | 2018-03-16 12:31:36 +0800 |
|---|---|---|
| committer | Joerg Roedel <[email protected]> | 2018-03-20 13:43:27 -0500 |
| commit | 971401015d14dfbb483aa6385f8bddc1afad0c32 (patch) | |
| tree | 4d22aeb82c9ffb239c9c3b61325fa50531e6d2b6 /lib/lockref.c | |
| parent | bbe4b3af9d9e3172fb9aa1f8dcdfaedcb381fc64 (diff) | |
iommu/vt-d: Use real PASID for flush in caching mode
If caching mode is supported, the hardware will cache
none-present or erroneous translation entries. Hence,
software should explicitly invalidate the PASID cache
after a PASID table entry becomes present. We should
issue such invalidation with the PASID value that we
have changed. PASID 0 is not reserved for this case.
Cc: Jacob Pan <[email protected]>
Cc: Kevin Tian <[email protected]>
Cc: Sankaran Rajesh <[email protected]>
Suggested-by: Ashok Raj <[email protected]>
Signed-off-by: Liu Yi L <[email protected]>
Signed-off-by: Lu Baolu <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>
Diffstat (limited to 'lib/lockref.c')
0 files changed, 0 insertions, 0 deletions