1. RISC-V Linux Page Table I

    The RISC-V page table formats can be found in RISC-V Privileged ISA Specification. Current RISC-V (Document Version 20190608-Priv-MSU-Ratified) supports three types of virtual memory, Sv32 for RV32, Sv39 and Sv48 for RV64, which supports 32-bit, 39-bit and 48-bit virtual address space respectively.

    2019/10/20 RISC-V Linux Page Table

  2. linux4riscv-1: Install GNU toolchain for RISC-V

    Recently, my instructor decided to update the project of operating system course. The new project is about porting Linux 0.11 to ARM64 and RISC-V as well as rewriting its interrupt, memory management, and file system, etc. My task is on RISC-V and I have no knowledge about it before, so I am to record what I have done and what I have learned. This is the first blog of this series. However, the source code will not be open-sourced as it will be used in operating system teaching in the future. Anyway, it’s a big project and hopefully I can finish it before the final exam.

    2019/09/18 Linux for RISC-V Operating System Lab Cross Compiler

  3. Cross Compile Gcc 9.1 for ARM64 on Ubuntu 18.04

    This is a record of how I cross compile Gcc 9.1 on Ubuntu 18.04.

    2019/09/03 ARM64 Cross Compiler

  4. Hello, Jekyll

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    2019/05/24