#!/bin/sh -x exec qemu-system-x86_64 \ -enable-kvm \ -M q35 \ -cpu host -smp "$(("$(nproc)" / 2))" \ -m "$(("$(free | grep '^Mem:\s' | awk '{ print $NF }')" / 2))K" \ -device e1000,netdev=net0 \ -device nec-usb-xhci,id=xhci \ -device ich9-intel-hda -device hda-duplex \ "$@"