diff --git a/target/linux/x86/config-4.14 b/target/linux/x86/config-4.14
index 184d11c8ca..fa0595c28e 100644
--- a/target/linux/x86/config-4.14
+++ b/target/linux/x86/config-4.14
@@ -314,7 +314,10 @@ CONFIG_M586MMX=y
 # CONFIG_MFD_INTEL_LPSS_PCI is not set
 # CONFIG_MGEODEGX1 is not set
 # CONFIG_MGEODE_LX is not set
-# CONFIG_MICROCODE is not set
+CONFIG_MICROCODE=y
+CONFIG_MICROCODE_AMD=y
+CONFIG_MICROCODE_INTEL=y
+CONFIG_MICROCODE_OLD_INTERFACE=y
 # CONFIG_MK6 is not set
 # CONFIG_MK7 is not set
 # CONFIG_MK8 is not set
diff --git a/target/linux/x86/config-4.9 b/target/linux/x86/config-4.9
index 9bc1d9f22c..af4c5e9e3c 100644
--- a/target/linux/x86/config-4.9
+++ b/target/linux/x86/config-4.9
@@ -292,7 +292,10 @@ CONFIG_M586MMX=y
 # CONFIG_MFD_INTEL_LPSS_PCI is not set
 # CONFIG_MGEODEGX1 is not set
 # CONFIG_MGEODE_LX is not set
-# CONFIG_MICROCODE is not set
+CONFIG_MICROCODE=y
+CONFIG_MICROCODE_AMD=y
+CONFIG_MICROCODE_INTEL=y
+CONFIG_MICROCODE_OLD_INTERFACE=y
 # CONFIG_MK6 is not set
 # CONFIG_MK7 is not set
 # CONFIG_MK8 is not set