start.sh

#!/bin/bash
if ! type -p qemu-system-x86_64 > /dev/null;then
    echo "qemu-system-x86_64 not found"
    exit 1
fi

kernel=vmlinuz-5.10.162
initrd=rootfs.cpio
if [ -e /dev/kvm ];then
    kvm="-enable-kvm"
fi
vga=0x344
cmdline=""
smp=4
memory=1024
for i in "${@}";do
    case "${i}" in
        tcg)
            kvm=
            ;;
        vga_ask)
            vga=ask
            ;;
        efi)
            efi="-drive if=pflash,format=raw,readonly=on,file=/usr/share/edk2/x64/OVMF.fd"
            ;;
        curses)
            display="-display curses"
            vga=0xf00
            ;;
        *)
            echo "Unknown option: ${i}"
            exit 1
            ;;
    esac
done
cmdline+=" vga=${vga}"
echo "Starting QEMU..."
qemu-system-x86_64 ${kvm} \
    ${efi} \
    -kernel "${kernel}" \
    -initrd "${initrd}" \
    -m "${memory}" \
    -append "${cmdline}" \
    -smp "${smp}" \
    ${display} \