zephyr/boards/riscv32/qemu_riscv32/board.cmake

set(EMU_PLATFORM qemu)

set(QEMU_CPU_TYPE_${ARCH} riscv32)

set(QEMU_FLAGS_${ARCH}
  -m ${CONFIG_RISCV_RAM_SIZE_MB}
  -nographic
  -machine sifive
  )

set(DEBUG_SCRIPT qemu.sh)