diff --git a/tests/qtest/arm-cpu-features.c b/tests/qtest/arm-cpu-features.c
index 8252b85bb8..90a87f0ea9 100644
--- a/tests/qtest/arm-cpu-features.c
+++ b/tests/qtest/arm-cpu-features.c
@@ -473,6 +473,19 @@ static void test_query_cpu_model_expansion(const void *data)
         assert_has_feature_enabled(qts, "cortex-a57", "pmu");
         assert_has_feature_enabled(qts, "cortex-a57", "aarch64");
 
+        assert_has_feature_enabled(qts, "a64fx", "pmu");
+        assert_has_feature_enabled(qts, "a64fx", "aarch64");
+        /*
+         * A64FX does not support any other vector lengths besides those
+         * that are enabled by default(128bit, 256bits, 512bit).
+         */
+        assert_has_feature_enabled(qts, "a64fx", "sve");
+        assert_sve_vls(qts, "a64fx", 0xb, NULL);
+        assert_error(qts, "a64fx", "cannot enable sve384",
+                     "{ 'sve384': true }");
+        assert_error(qts, "a64fx", "cannot enable sve640",
+                     "{ 'sve640': true }");
+
         sve_tests_default(qts, "max");
         pauth_tests_default(qts, "max");