This field make the requests snoop processor caches irrespective of
other attributes in the request or other fields in paging structure
entries used to translate the request.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/iommu/intel/svm.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/iommu/intel/svm.c b/drivers/iommu/intel/svm.c
index 23a38763c1d1..c720d1be992d 100644
--- a/drivers/iommu/intel/svm.c
+++ b/drivers/iommu/intel/svm.c
@@ -391,9 +391,12 @@ static struct iommu_sva *intel_svm_bind_mm(struct
intel_iommu *iommu,
}
/* Setup the pasid table: */
- sflags = (flags & SVM_FLAG_SUPERVISOR_MODE) ?
- PASID_FLAG_SUPERVISOR_MODE : 0;
- sflags |= cpu_feature_enabled(X86_FEATURE_LA57) ? PASID_FLAG_FL5LP : 0;
+ sflags = PASID_FLAG_PAGE_SNOOP;
+ if (flags & SVM_FLAG_SUPERVISOR_MODE)
+ sflags |= PASID_FLAG_SUPERVISOR_MODE;
+ if (cpu_feature_enabled(X86_FEATURE_LA57))
+ sflags |= PASID_FLAG_FL5LP;
+
spin_lock_irqsave(&iommu->lock, iflags);
ret = intel_pasid_setup_first_level(iommu, dev, mm->pgd, mm->pasid,
FLPT_DEFAULT_DID, sflags);
--
2.25.1
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