https://blog.wongcw.com/2022/03/12/spectre-bhi%e6%96%b0%e8%a3%9c%e4%b8%81%e6%88%96%e8%ae%93%e7%8f%be%e4%bb%a3intel-cpu%e7%9a%84%e6%80%a7%e8%83%bd%e6%9a%b4%e9%99%8d36/