is there a way to communicate running elf in Spike(RISC-V emulator) with host machine?

I'm trying to make an communication between elf( compiled by riscv64-unknown-elf-gcc) in Spike and host machine. I want to ask..

1. Is there any shared memory region between running binary in Spike and host?

2. or is there any functions in riscv64-unknown-elf-gcc for binary to access host machine.

Thanks!