contain either host or guest CPU definition. The host CPU definition is the
<cpu> element and its contents as printed by B<capabilities> command. The
guest CPU definition is the <cpu> element and its contents from domain XML
-definition. For more information on guest CPU definition see:
+definition. In addition to the <cpu> element itself, this command accepts
+full domain or capabilities XML containing the <cpu> element. For more
+information on guest CPU definition see:
L<https://libvirt.org/formatdomain.html#elementsCPU>. If I<--error> is
specified, the command will return an error when the given CPU is
incompatible with host CPU and a message providing more details about the