diff --git a/drivers/iommu/iommufd/hw_pagetable.c b/drivers/iommu/iommufd/hw_pagetable.c
index 7de6e914232e7..268315b1d8bc0 100644
--- a/drivers/iommu/iommufd/hw_pagetable.c
+++ b/drivers/iommu/iommufd/hw_pagetable.c
@@ -126,6 +126,9 @@ iommufd_hwpt_paging_alloc(struct iommufd_ctx *ictx, struct iommufd_ioas *ioas,
 	if ((flags & IOMMU_HWPT_ALLOC_DIRTY_TRACKING) &&
 	    !device_iommu_capable(idev->dev, IOMMU_CAP_DIRTY_TRACKING))
 		return ERR_PTR(-EOPNOTSUPP);
+	if ((flags & IOMMU_HWPT_FAULT_ID_VALID) &&
+	    (flags & IOMMU_HWPT_ALLOC_NEST_PARENT))
+		return ERR_PTR(-EOPNOTSUPP);
 
 	hwpt_paging = __iommufd_object_alloc(
 		ictx, hwpt_paging, IOMMUFD_OBJ_HWPT_PAGING, common.obj);
diff --git a/tools/testing/selftests/iommu/iommufd.c b/tools/testing/selftests/iommu/iommufd.c
index a1b2b657999dc..618c03bb6509b 100644
--- a/tools/testing/selftests/iommu/iommufd.c
+++ b/tools/testing/selftests/iommu/iommufd.c
@@ -439,6 +439,10 @@ TEST_F(iommufd_ioas, alloc_hwpt_nested)
 				    &test_hwpt_id);
 		test_err_hwpt_alloc(EINVAL, self->device_id, self->device_id, 0,
 				    &test_hwpt_id);
+		test_err_hwpt_alloc(EOPNOTSUPP, self->device_id, self->ioas_id,
+				    IOMMU_HWPT_ALLOC_NEST_PARENT |
+						IOMMU_HWPT_FAULT_ID_VALID,
+				    &test_hwpt_id);
 
 		test_cmd_hwpt_alloc(self->device_id, self->ioas_id,
 				    IOMMU_HWPT_ALLOC_NEST_PARENT,