Risc64 Virt Usage

Works perfectly:

$ make boot V=1

$ make boot SHARE=1

$ make boot ROOTDEV=/dev/nfs

Buildroot provides rootfs config and toolchain, mainline linux provides the official kernel config, everything goes well. Qemu v4.0.0 has the risc64 board support.

The only difference is riscv64 requires a proxy kernel to do some prepare before running the real linux kernel. and the proxy kernel currently is replaced by the opensbi project.

References

• Qemu RISCV Documentation
• RISCV Software Status
• RV8: RISC-V simulator for x86-64 (Another simulator)
• RISC-V Debian
• Running 64- and 32-bit RISC-V Linux on QEMU
• RISC-V GNU Compiler Toolchain
• Prebuilt GNU Toolchain
• RISC-V Proxy Kernel and Boot Loader
• RISC-V Open Source Supervisor Binary Interface
• buildroot/configs/qemu_riscv64_virt_defconfig
• buildroot/board/qemu/riscv64-virt/