https://blog.wongcw.com/2021/11/19/linux%e5%b7%b2%e5%81%9a%e5%a5%bd%e9%83%a8%e7%bd%b2x86-cpu%e3%80%8c%e7%9b%b4%e7%b7%9a%e6%8e%a8%e6%b8%ac%e3%80%8d%e6%bc%8f%e6%b4%9e%e7%b7%a9%e8%a7%a3%e6%8e%aa%e6%96%bd%e7%9a%84%e6%ba%96%e5%82%99/