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-rw-r--r--drivers/iommu/intel/svm.c22
1 files changed, 9 insertions, 13 deletions
diff --git a/drivers/iommu/intel/svm.c b/drivers/iommu/intel/svm.c
index 6c87c807a0ab..d386853121a2 100644
--- a/drivers/iommu/intel/svm.c
+++ b/drivers/iommu/intel/svm.c
@@ -277,20 +277,16 @@ int intel_svm_bind_gpasid(struct iommu_domain *domain, struct device *dev,
goto out;
}
+ /*
+ * Do not allow multiple bindings of the same device-PASID since
+ * there is only one SL page tables per PASID. We may revisit
+ * once sharing PGD across domains are supported.
+ */
for_each_svm_dev(sdev, svm, dev) {
- /*
- * For devices with aux domains, we should allow
- * multiple bind calls with the same PASID and pdev.
- */
- if (iommu_dev_feature_enabled(dev,
- IOMMU_DEV_FEAT_AUX)) {
- sdev->users++;
- } else {
- dev_warn_ratelimited(dev,
- "Already bound with PASID %u\n",
- svm->pasid);
- ret = -EBUSY;
- }
+ dev_warn_ratelimited(dev,
+ "Already bound with PASID %u\n",
+ svm->pasid);
+ ret = -EBUSY;
goto out;
}
} else {