diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index e45b5cb7fe..2e6153c540 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -4048,6 +4048,11 @@ static inline bool isar_feature_aa64_mte(const ARMISARegisters *id)
     return FIELD_EX64(id->id_aa64pfr1, ID_AA64PFR1, MTE) >= 2;
 }
 
+static inline bool isar_feature_aa64_sme(const ARMISARegisters *id)
+{
+    return FIELD_EX64(id->id_aa64pfr1, ID_AA64PFR1, SME) != 0;
+}
+
 static inline bool isar_feature_aa64_pmu_8_1(const ARMISARegisters *id)
 {
     return FIELD_EX64(id->id_aa64dfr0, ID_AA64DFR0, PMUVER) >= 4 &&