diff a/src/hotspot/cpu/aarch64/vm_version_aarch64.cpp b/src/hotspot/cpu/aarch64/vm_version_aarch64.cpp
--- a/src/hotspot/cpu/aarch64/vm_version_aarch64.cpp
+++ b/src/hotspot/cpu/aarch64/vm_version_aarch64.cpp
@@ -499,11 +499,11 @@
     if (FLAG_IS_DEFAULT(MaxVectorSize)) {
       MaxVectorSize = _initial_sve_vector_length;
     } else if (MaxVectorSize < 16) {
       warning("SVE does not support vector length less than 16 bytes. Disabling SVE.");
       UseSVE = 0;
-    } else if (MaxVectorSize % 16 == 0) {
+    } else if ((MaxVectorSize % 16) == 0 && is_power_of_2(MaxVectorSize)) {
       int new_vl = prctl(PR_SVE_SET_VL, MaxVectorSize);
       _initial_sve_vector_length = new_vl;
       // If MaxVectorSize is larger than system largest supported SVE vector length, above prctl()
       // call will set task vector length to the system largest supported value. So, we also update
       // MaxVectorSize to that largest supported value.
@@ -519,10 +519,28 @@
     } else {
       vm_exit_during_initialization(err_msg("Unsupported MaxVectorSize: %d", (int)MaxVectorSize));
     }
   }
 
+  if (UseSVE == 0) {  // NEON
+    int min_vector_size = 8;
+    int max_vector_size = 16;
+    if (!FLAG_IS_DEFAULT(MaxVectorSize)) {
+      if (!is_power_of_2(MaxVectorSize)) {
+        vm_exit_during_initialization(err_msg("Unsupported MaxVectorSize: %d", (int)MaxVectorSize));
+      } else if (MaxVectorSize < min_vector_size) {
+        warning("MaxVectorSize must be at least %i on this platform", min_vector_size);
+        FLAG_SET_DEFAULT(MaxVectorSize, min_vector_size);
+      } else if (MaxVectorSize > max_vector_size) {
+        warning("MaxVectorSize must be at most %i on this platform", max_vector_size);
+        FLAG_SET_DEFAULT(MaxVectorSize, max_vector_size);
+      }
+    } else {
+      FLAG_SET_DEFAULT(MaxVectorSize, 16);
+    }
+  }
+
   if (FLAG_IS_DEFAULT(OptoScheduling)) {
     OptoScheduling = true;
   }
 
   if (FLAG_IS_DEFAULT(AlignVector)) {