下载QEMU源代码：
https://gitee.com/giggle-haha/qemu/tree/master/Source
编译：
./configure --prefix=/opt/qemu --target-list=arm-softmmu,arm-linux-user,riscv64-linux-user,riscv64-softmmu,riscv32-linux-user,riscv32-softmmu
make -j
make install
原文：https://www.cnblogs.com/zhandezheng/p/14526226.html