uCat

A uCore OS for System on Cat, ported from the RISC-V 64 version (http://os.cs.tsinghua.edu.cn/oscourse/OS2018spring/projects/g08).

Ucore for risc-v 64bit

Run:

NOTICE: If you want run ucore risc-v 64 in SMP, please checkout to smp branch. (master branch is not the newest, because we are debugging.

1. Configure:

  make menuconfig ARCH=riscv_64

or

  make ARCH=riscv_64 defconfig

We temporarily use NUMA settings in menuconfig to set the SMP config. (We can't enable NUMA in risc-v.) If you want to enable SMP, make sure the CPU number in NUMA settings is N (default is 1), which means the number of processors.

2. Create file system

  make sfsimg
  make sfsimg2

Here we use sfsimg2 for SFAT file system, which is an example to prove the correctness of our LKM in risc-v.

3. (Optional) create swap file If you define "Support for paging of anonymous memory(swap)" in menuconfig, then run:

  make swapimg

4. Create kernel

  make

5. Run ucore

  ./uCore_run -c -d obj

6. (Optional) Test ucore

  ./uCore_test -d obj

Note: Support for Darwin (macOS) has been added to the test script. Note however, that macOS by default ships the BSD sed, which is not supported by the test script. To run the test script, you need to install the GNU sed. Instructions:

  brew install gnu-sed
  SED=gsed ./uCore_test -d obj

学习笔记

• LKM: https://github.com/riscv-labs/OS2018spring-projects-g08/blob/master/docs/lkm.md
• RISC-V pk/BBL: https://github.com/riscv-labs/OS2018spring-projects-g08/blob/master/docs/pk_bbl.md
• ucore+ i386, ucore diff: https://github.com/riscv-labs/OS2018spring-projects-g08/blob/master/docs/ucore%2B%20i386%20vs%20ucore.md
• ucore+ rv64 porting: https://github.com/riscv-labs/OS2018spring-projects-g08/blob/master/docs/ucore%2B_rv64_porting.md
• RISC-V ISA: https://github.com/riscv-labs/OS2018spring-projects-g08/blob/master/docs/riscv_priv1.10.md, https://github.com/riscv-labs/OS2018spring-projects-g08/blob/master/docs/riscv_spec2.2.md
• SMP: https://github.com/riscv-labs/OS2018spring-projects-g08/blob/master/docs/smp.md

参考

• RISC-V specifications (http://riscv.org)
  • User-level ISA specifications
  • Privileged ISA specifications
• ucore for RISC-V 64 (https://gitee.com/shzhxh/ucore_os_lab)
• ucore+ (https://github.com/chyyuu/ucore_os_plus)
• bbl-ucore (https://ring00.github.io/bbl-ucore/)
• RISC-V Proxy Kernel and Boot Loader (https://github.com/riscv/riscv-pk)
• ucore SMP in x86 (http://os.cs.tsinghua.edu.cn/oscourse/OS2013/projects/U01)
• ''The Scalable Commutativity Rule''
  • commuter (https://pdos.csail.mit.edu/archive/commuter/)
  • sv6 (https://github.com/aclements/sv6)
• 蓝昶ucore+ LKM (http://os.cs.tsinghua.edu.cn/oscourse/OS2012/projects/U06)