diff --git a/wolfcrypt/src/cpuid.c b/wolfcrypt/src/cpuid.c
index cc360a3c1..09b265122 100644
--- a/wolfcrypt/src/cpuid.c
+++ b/wolfcrypt/src/cpuid.c
@@ -108,4 +108,19 @@
             cpuid_set_flags();
         return cpuid_flags;
     }
+
+    void cpuid_select_flags(word32 flags)
+    {
+        cpuid_flags = flags;
+    }
+
+    void cpuid_set_flag(word32 flag)
+    {
+        cpuid_flags |= flag;
+    }
+
+    void cpuid_clear_flag(word32 flag)
+    {
+        cpuid_flags &= ~flag;
+    }
 #endif
diff --git a/wolfssl/wolfcrypt/cpuid.h b/wolfssl/wolfcrypt/cpuid.h
index 912a01085..c0ca22882 100644
--- a/wolfssl/wolfcrypt/cpuid.h
+++ b/wolfssl/wolfcrypt/cpuid.h
@@ -54,6 +54,11 @@
 
     void cpuid_set_flags(void);
     word32 cpuid_get_flags(void);
+
+    /* Public APIs to modify flags. */
+    WOLFSSL_API void cpuid_select_flags(word32 flags);
+    WOLFSSL_API void cpuid_set_flag(word32 flag);
+    WOLFSSL_API void cpuid_clear_flag(word32 flag);
 #endif
 
 #ifdef __cplusplus