http://xiongchao902.com/blog/study/kvm.html

https://blog.csdn.net/jiangliqing1234/article/details/119217235

<video>
  <model type='qxl' ram='65536' vram='65536' vgamem='65536' heads='1' primary='yes'/>
  <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
</video>