能够使用如下元素指定CPU「型号」、「特征」、「拓扑」。socket
<cpu match='exact'> <model fallback='allow'>core2duo</model> <vendor>Intel</vendor> <topology sockets='1' cores='2' threads='1'/> <cache level='3' mode='emulate'/> <feature policy='disable' name='lahf_lm'/> </cpu>
<cpu mode='host-model'> <model fallback='forbid'/> <topology sockets='1' cores='2' threads='1'/> </cpu>
<cpu mode='host-passthrough'> <cache mode='passthrough'/> <feature policy='disable' name='lahf_lm'/> ...
若是不须要对CPU「型号」及其「特征」进行限制,能够简单的使用一个cpu元素:ide
<cpu> <topology sockets='1' cores='2' threads='1'/> </cpu>
一个完整的结构以下:it
<cpu match="minimum/exact/strict" check="none/partial/full" mode="custom/host-model/host-passthrough"> <model /> <vendor /> <topology sockets='1' cores='2' threads='1'/> <feature /> <cache /> <numa> <cell id="" cpus="" memory="" unit="" memAccess="" discard=""> <distances> <sibling id='' value=''/> </distances> </cell> </numa> </cpu>
KVM cpu配置模式分类class