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| author | Jacob Pan <[email protected]> | 2021-03-02 02:13:58 -0800 |
|---|---|---|
| committer | Joerg Roedel <[email protected]> | 2021-03-18 11:42:46 +0100 |
| commit | bb0f61533dfd6aa815a2719720c77d13f840b683 (patch) | |
| tree | 2f4f9591d4551afb362fefa75bdf0b8d48a6cb66 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | f68c7f539b6e9712e941212ab95a1feb5a0bf3b3 (diff) | |
iommu/vt-d: Enable write protect propagation from guest
Write protect bit, when set, inhibits supervisor writes to the read-only
pages. In guest supervisor shared virtual addressing (SVA), write-protect
should be honored upon guest bind supervisor PASID request.
This patch extends the VT-d portion of the IOMMU UAPI to include WP bit.
WPE bit of the supervisor PASID entry will be set to match CPU CR0.WP bit.
Signed-off-by: Sanjay Kumar <[email protected]>
Signed-off-by: Jacob Pan <[email protected]>
Acked-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