virsh edit vm-name
添加如下参数：
<cputune>
<vcpupin vcpu='0' cpuset='2'/>
<vcpupin vcpu='1' cpuset='3'/>
<vcpupin vcpu='2' cpuset='4'/>
<vcpupin vcpu='3' cpuset='5'/>
<vcpupin vcpu='4' cpuset='6'/>
<vcpupin vcpu='5' cpuset='7'/>
<vcpupin vcpu='6' cpuset='8'/>
<vcpupin vcpu='7' cpuset='9'/>
<vcpupin vcpu='8' cpuset='10'/>
<vcpupin vcpu='9' cpuset='11'/>
<vcpupin vcpu='10' cpuset='12'/>
<vcpupin vcpu='11' cpuset='13'/>
<vcpupin vcpu='12' cpuset='14'/>
<vcpupin vcpu='13' cpuset='15'/>
<vcpupin vcpu='14' cpuset='16'/>
<vcpupin vcpu='15' cpuset='17'/>
<emulatorpin cpuset='0-15'/>
</cputune>
修改后重启虚拟机，在物理机查看亲和性
Virsh vcpupin vm-name
