[libvirt] CLZERO support for AMD

Hi : I see a commit in qemu that adds support for CLZERO but in CPUIDs. : commit e900135dcfb676a4019dc206395e02db5d1de0d6 Author: Sebastian Andrzej Siewior <bigeasy(a)linutronix.de&gt; Date: Wed Sep 25 23:49:48 2019 +0200 i386: Add CPUID bit for CLZERO and XSAVEERPTR The CPUID bits CLZERO and XSAVEERPTR are availble on AMD's ZEN platform and could be passed to the guest. Signed-off-by: Sebastian Andrzej Siewior <bigeasy(a)linutronix.de&gt; Signed-off-by: Paolo Bonzini <pbonzini(a)redhat.com&gt; Is there a corresponding change in libvirt adding this capability? Libvirt complains when I add it manually in the vm xml: # virsh create newvm.xml error: Failed to create domain from newvm.xml error: unsupported configuration: unknown CPU feature: clzero # grep clzero newvm.xml <feature policy='require' name='clzero'/> Should we add it? thanks ani