diff --git a/ArmPkg/Include/Library/ArmLib.h b/ArmPkg/Include/Library/ArmLib.h
index 8a364f2ca9..c2ed72112b 100644
--- a/ArmPkg/Include/Library/ArmLib.h
+++ b/ArmPkg/Include/Library/ArmLib.h
@@ -733,4 +733,21 @@ ArmHasGicSystemRegisters (
   VOID
   );
 
+#ifdef MDE_CPU_ARM
+///
+/// AArch32-only ID Register Helper functions
+///
+/**
+  Check whether the CPU supports the Security extensions
+
+  @return   Whether the Security extensions are implemented
+
+**/
+BOOLEAN
+EFIAPI
+ArmHasSecurityExtensions (
+  VOID
+  );
+#endif // MDE_CPU_ARM
+
 #endif // __ARM_LIB__
diff --git a/ArmPkg/Library/ArmLib/Arm/ArmV7Lib.c b/ArmPkg/Library/ArmLib/Arm/ArmV7Lib.c
index 3faada3a65..9f81a72237 100644
--- a/ArmPkg/Library/ArmLib/Arm/ArmV7Lib.c
+++ b/ArmPkg/Library/ArmLib/Arm/ArmV7Lib.c
@@ -87,3 +87,18 @@ ArmHasGicSystemRegisters (
 {
   return ((ArmReadIdPfr1 () & ARM_PFR1_GIC) != 0);
 }
+
+/**
+  Check whether the CPU supports the Security extensions
+
+  @return   Whether the Security extensions are implemented
+
+**/
+BOOLEAN
+EFIAPI
+ArmHasSecurityExtensions (
+  VOID
+  )
+{
+  return ((ArmReadIdPfr1 () & ARM_PFR1_SEC) != 0);
+}