diff --git a/kernel.conf b/kernel.conf
index 4dd75ef5..a8bbd6b6 100644
--- a/kernel.conf
+++ b/kernel.conf
@@ -5952,9 +5952,9 @@ CONFIG_IOMMU_SUPPORT=y
 # end of Generic IOMMU Pagetable Support
 
 # CONFIG_IOMMU_DEBUGFS is not set
-# CONFIG_AMD_IOMMU is not set
-# CONFIG_INTEL_IOMMU is not set
-# CONFIG_IRQ_REMAP is not set
+CONFIG_AMD_IOMMU=y
+CONFIG_INTEL_IOMMU=y
+CONFIG_IRQ_REMAP=y
 # CONFIG_VIRTIO_IOMMU is not set
 
 #