commit 07aaced4e6ea6db8b27f44636f51cafa6f1847a8
Author: Jiri Denemark <jdenemar@redhat.com>
Date:   Thu Dec 12 15:12:05 2019 +0100

    cpu_map: Add TAA_NO bit for IA32_ARCH_CAPABILITIES MSR
    
    CVE-2019-11135
    
    CPUs with TAA_NO bit of IA32_ARCH_CAPABILITIES MSR set to 1 are not
    vulnerable to TSX Asynchronous Abort and passing this bit to a guest
    may avoid unnecessary mitigations.
    
    Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
    Reviewed-by: Ján Tomko <jtomko@redhat.com>

Index: libvirt-5.10.0/src/cpu_map/x86_features.xml
===================================================================
--- libvirt-5.10.0.orig/src/cpu_map/x86_features.xml
+++ libvirt-5.10.0/src/cpu_map/x86_features.xml
@@ -502,4 +502,7 @@
   <feature name='mds-no'>
     <msr index='0x10a' edx='0x00000000' eax='0x00000020'/>
   </feature>
+  <feature name='taa-no'>
+    <msr index='0x10a' edx='0x00000000' eax='0x00000100'/>
+  </feature>
 </cpus>