The initial goal is to write a mini OS in Rust with multi-core support. More specifically, it would start from the post of the [Writing an OS in Rust](http://os.phil-opp.com) series, then reimplement [xv6-x86_64](https://github.com/jserv/xv6-x86_64) in Rust style.
In fact, it's more complicated than we expected to write an OS starting from scratch. So by the end of OS course, we only finished rewriting [ucore_os_lab](https://github.com/chyyuu/ucore_os_lab), without multi-core support. Then as a part of [CECS project](https://github.com/riscv-and-rust-and-decaf), we ported it from x86_64 to RISCV32I, and made it work on our FPGA CPU.