https://blog.wongcw.com/2021/01/07/zen%e6%9e%b6%e6%a7%8b%e4%b9%8b%e7%88%b6jim-keller%e9%9b%a2%e8%81%b7intel%e5%be%8c%e8%bd%89%e6%88%b0ai%e5%85%ac%e5%8f%b8%ef%bc%9a%e6%8a%95%e8%ba%abrisc-v%e8%99%95%e7%90%86%e5%99%a8/