This is a experiment project for RISC-V(RV64) system programming.

target

• QEMU RISC-V virt
  • WIP
• K210 (on MAiXDUiNO)
  • in the future.

features

• FDT parser
• MMU driver
  • host virtual address into host physical address
• PLIC (RISC-V interrupt controller) driver
• UART driver
• VMM(WIP)
  • interrupt and exception delegation
  • MMU(guest physical address into host physical address)
• Timer controller
• SBI driver
  • for version 0.1
• virtio(WIP)
  • virtio-block(WIP)
  • virtio-net(WIP)

how to build

1. clone

$ git clone --recursive https://github.com/sux2mfgj/rv_ss

1. build toolchains(gcc, libc, gdb, ld, biutils, etc)

$ cd riscv-gnu-toolchain
$ ./configure --prefix=/home/hima/work/riscvos/../local

1. build opensbi

$ export CROSS_COMPILE=riscv64-unknown-elf-
$ make PLATFORM=qemu/virt I=../local install

1. build qemu

$ git clone git@github.com:kvm-riscv/qemu.git
$ cd qemu
$ git checkout mainline/alistair/riscv-hyp-ext-v0.4.1

1. build and run rv_ss

$ cd ${to project root}
$ make run

TODO

• Update the qemu. There is a new version of the qemu for risc-v hypervisor extension. (mainline/alistair/riscv-hyp-ext-v0.4.2)
• add the qemu as a submodule.