diff --git a/src/cpu_map/x86_features.xml b/src/cpu_map/x86_features.xml
index fa28656d4c..69b13cb957 100644
--- a/src/cpu_map/x86_features.xml
+++ b/src/cpu_map/x86_features.xml
@@ -689,6 +689,11 @@
     <cpuid eax_in='0x8000000a' edx='0x10000000'/>
   </feature>
 
+  <!-- cpuid level 0x80000021 ecx 0x0 features -->
+  <feature name='auto-ibrs'>
+    <cpuid eax_in='0x80000021' eax='0x00000100'/>
+  </feature>
+
   <!-- IA32_ARCH_CAPABILITIES features -->
   <feature name='rdctl-no'>
     <msr index='0x10a' edx='0x00000000' eax='0x00000001'/>