diff --git a/include/arch/aarch64/arch_features.h b/include/arch/aarch64/arch_features.h
index a01dfe7..3ea08a6 100644
--- a/include/arch/aarch64/arch_features.h
+++ b/include/arch/aarch64/arch_features.h
@@ -387,10 +387,22 @@
 /*******************************************************************************
  * Function to identify the presence of FEAT_SVE (Scalable Vector Extension)
  ******************************************************************************/
-static inline bool is_armv8_2_feat_sve_present(void)
+static inline unsigned int read_feat_sve_id_field(void)
 {
-	return (((read_id_aa64pfr0_el1() >> ID_AA64PFR0_SVE_SHIFT) &
-		ID_AA64PFR0_SVE_MASK) == ID_AA64PFR0_SVE_SUPPORTED);
+	return ISOLATE_FIELD(read_id_aa64pfr0_el1(), ID_AA64PFR0_SVE);
+}
+
+static inline bool is_feat_sve_supported(void)
+{
+	if (ENABLE_SVE_FOR_NS == FEAT_STATE_DISABLED) {
+		return false;
+	}
+
+	if (ENABLE_SVE_FOR_NS == FEAT_STATE_ALWAYS) {
+		return true;
+	}
+
+	return read_feat_sve_id_field() >= ID_AA64PFR0_SVE_SUPPORTED;
 }
 
 /*******************************************************************************
diff --git a/include/lib/extensions/sve.h b/include/lib/extensions/sve.h
index 4b66cdb..1faed2d 100644
--- a/include/lib/extensions/sve.h
+++ b/include/lib/extensions/sve.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2021, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2017-2023, Arm Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -9,7 +9,16 @@
 
 #include <context.h>
 
+#if (ENABLE_SME_FOR_NS || ENABLE_SVE_FOR_NS)
 void sve_enable(cpu_context_t *context);
 void sve_disable(cpu_context_t *context);
+#else
+static inline void sve_enable(cpu_context_t *context)
+{
+}
+static inline void sve_disable(cpu_context_t *context)
+{
+}
+#endif /* ( ENABLE_SME_FOR_NS | ENABLE_SVE_FOR_NS ) */
 
 #endif /* SVE_H */