diff --git a/drivers/iommu/iommufd/Kconfig b/drivers/iommu/iommufd/Kconfig
index 99d4b075df49..76656fe0470d 100644
--- a/drivers/iommu/iommufd/Kconfig
+++ b/drivers/iommu/iommufd/Kconfig
@@ -37,6 +37,7 @@ config IOMMUFD_TEST
 	depends on DEBUG_KERNEL
 	depends on FAULT_INJECTION
 	depends on RUNTIME_TESTING_MENU
+	select IOMMUFD_DRIVER
 	default n
 	help
 	  This is dangerous, do not enable unless running
diff --git a/tools/testing/selftests/iommu/config b/tools/testing/selftests/iommu/config
index 110d73917615..02a2a1b267c1 100644
--- a/tools/testing/selftests/iommu/config
+++ b/tools/testing/selftests/iommu/config
@@ -1,3 +1,5 @@
 CONFIG_IOMMUFD=y
+CONFIG_FAULT_INJECTION_DEBUG_FS=y
 CONFIG_FAULT_INJECTION=y
 CONFIG_IOMMUFD_TEST=y
+CONFIG_FAILSLAB=y