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| author | Jacob Pan <jacob.jun.pan@linux.intel.com> | 2021-03-02 02:14:00 -0800 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2021-03-18 11:42:46 +0100 |
| commit | 396bd6f3d9f659d7ce324806bf3cd6677385f8fd (patch) | |
| tree | bd780180080d07da2a72fe0759663c3fbecf4490 /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | 78a523fe73b81b4447beb2d6c78c9fafae24eebb (diff) | |
iommu/vt-d: Calculate and set flags for handle_mm_fault
Page requests are originated from the user page fault. Therefore, we
shall set FAULT_FLAG_USER.
FAULT_FLAG_REMOTE indicates that we are walking an mm which is not
guaranteed to be the same as the current->mm and should not be subject
to protection key enforcement. Therefore, we should set FAULT_FLAG_REMOTE
to avoid faults when both SVM and PKEY are used.
References: commit 1b2ee1266ea6 ("mm/core: Do not enforce PKEY permissions on remote mm access")
Reviewed-by: Raj Ashok <ashok.raj@intel.com>
Acked-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Link: https://lore.kernel.org/r/1614680040-1989-5-git-send-email-jacob.jun.pan@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions