CentOS7 KVM windows虚拟机 io优化

windows 挂载virtio-win-0.1.141.iso

更新存储控制器/网络适配器驱动：viostor/NetKVM

编辑xml

<features>
<acpi/>
<pae/>
<hyperv>
<relaxed state='on'/>
<vapic state='on'/>
</hyperv>
</features>
<clock offset='localtime'>
<timer name='hypervclock' present='yes'/>
</clock>