Boards for RISC-V Processors by MIPS

RISC-V processors developed by MIPS support Boston-aia board model. The board model supports up to 64 harts with MIPS CPS, MIPS GCR, MIPS CPC, AIA plic, and AIA clint devices. The model can create boot code, if there is no -bios parameter. Also, we can specify -smp x,cores=y,thread=z.

Running Linux kernel

For example, to use 4 cores and 2 threads with each core to have 8 smp cpus, that runs on the mips-p8700 CPU, run qemu as follows:

.. code-block:: bash

qemu-system-riscv64 -cpu mips-p8700
-m 2G -M boston-aia
-smp 8,cores=4,threads=2 -kernel fw_payload.bin
-drive file=rootfs.ext2,format=raw -serial stdio