Pidfile

RAM_OPTS=$(echo "-m ${RAM_SIZE}" | sed 's/MB/M/g;s/GB/G/g;s/TB/T/g')

CPU_OPTS="-smp ${CPU_CORES},sockets=1,cores=${CPU_CORES},threads=1"

DEF_OPTS="-nographic -nodefaults -pidfile ${_QEMU_PID} -overcommit mem-lock=off"

DEF_OPTS="-nographic -nodefaults -overcommit mem-lock=off"

EXTRA_OPTS="-device virtio-balloon-pci,id=balloon0 -object rng-random,id=rng0,filename=/dev/urandom -device virtio-rng-pci,rng=rng0"

ARGS="${DEF_OPTS} ${CPU_OPTS} ${RAM_OPTS} ${KVM_OPTS} ${MON_OPTS} ${SERIAL_OPTS} ${NET_OPTS} ${DISK_OPTS} ${EXTRA_OPTS}"

set -m

(

  qemu-system-x86_64 ${ARGS} &

  qemu-system-x86_64 ${ARGS} & echo $! > ${_QEMU_PID}

)

set +m