boot debian-riscv64 on ubuntu by qemu

install

install u-boot-qemu and opensbi

sudo apt install u-boot-qemu opensbi

get debian-rv64

wget "https://gitlab.com/api/v4/projects/giomasce%2Fdqib/jobs/artifacts/master/download?job=convert_riscv64-virt" -O debian-rv64.zip

unzip

mkdir debian-rv
unzip debian-rv64.zip ./debian-rv

qemu-script

qemu-system-riscv64 \
    -machine virt \
    -cpu rv64 \
    -m 1G \
    -device virtio-blk-device,drive=hd \
    -drive file=image.qcow2,if=none,id=hd \
    -device virtio-net-device,netdev=net \
    -netdev user,id=net,hostfwd=tcp::2222-:22 \
    -bios /usr/lib/riscv64-linux-gnu/opensbi/generic/fw_jump.elf \
    -kernel /usr/lib/u-boot/qemu-riscv64_smode/uboot.elf \
    -object rng-random,filename=/dev/urandom,id=rng \
    -device virtio-rng-device,rng=rng \
    -append "root=LABEL=rootfs console=ttyS0" \
    -nographic

login

You can log in using either username/password:
debian debian
or
root root

ssh debian@localhost -p 2222

Or using one of the SSH keys included with the image:

chmod 600 ssh_user_ed25519_key
ssh debian@localhost -p 2222 -i ssh_user_ed25519_key