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-rw-r--r--drivers/iommu/intel/pasid.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/iommu/intel/pasid.c b/drivers/iommu/intel/pasid.c
index 06ddb3c927f5..8f92b92f3d2a 100644
--- a/drivers/iommu/intel/pasid.c
+++ b/drivers/iommu/intel/pasid.c
@@ -336,6 +336,15 @@ static inline void pasid_set_fault_enable(struct pasid_entry *pe)
}
/*
+ * Setup the WPE(Write Protect Enable) field (Bit 132) of a
+ * scalable mode PASID entry.
+ */
+static inline void pasid_set_wpe(struct pasid_entry *pe)
+{
+ pasid_set_bits(&pe->val[2], 1 << 4, 1 << 4);
+}
+
+/*
* Setup the P(Present) field (Bit 0) of a scalable mode PASID
* entry.
*/