diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index d57f3104e1..bdbd446b88 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -18,6 +18,7 @@
  */
 
 #include "qemu/osdep.h"
+#include "qemu/units.h"
 #include "qemu/cutils.h"
 #include "qemu/bitops.h"
 
@@ -65,9 +66,6 @@ struct CPUID2CacheDescriptorInfo {
     int associativity;
 };
 
-#define KiB 1024
-#define MiB (1024 * 1024)
-
 /*
  * Known CPUID 2 cache descriptors.
  * From Intel SDM Volume 2A, CPUID instruction