QEMU Console forwarding

qemu_console_forward.md

Why

To programatically interact with the workload inside the container. But how can we differentiate stdout and stderr

(based on http://nairobi-embedded.org/qemu_serial_terminal_redirection.html)

QEMU Command line

qemu-system-x86_64 \
    -enable-kvm \
    -bios OVMF.fd \
    -smp sockets=1,cpus=4,cores=2 -cpu host \
    -m 1024 \
    -vga none -nographic \
    -drive file="$IMAGE",if=virtio,aio=threads,format=raw \
    -chardev socket,host=localhost,port=4555,server,nowait,id=gnc0 \
    -device isa-serial,chardev=gnc0 \
    -monitor stdio \
    -debugcon file:debug.log -global isa-debugcon.iobase=0x402 $@

On the host

nc localhost 4555