/etc/init.d/qemu-kvm is in qemu-system-common 1:2.5+dfsg-5ubuntu10.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38  | #! /bin/sh
### BEGIN INIT INFO
# Provides:          qemu-system-x86
# Required-Start:    mountkernfs
# Required-Stop:     
# Should-Start:      udev devfsd
# Should-Stop:       
# Default-Start:     S
# Default-Stop:      
# Short-Description: QEMU KVM module loading script
# Description:       This script loads the kernel modules needed by QEMU KVM
### END INIT INFO
PATH=/sbin:/bin:/usr/sbin:/usr/bin
. /lib/lsb/init-functions
test -x /usr/share/qemu/init/qemu-kvm-init || exit 5
start() {
    log_daemon_msg "Configuring kvm" "qemu-kvm"
    /usr/share/qemu/init/qemu-kvm-init start
    log_end_msg $?
}
case "$1" in
  start|restart|force-reload)
    start
    ;;
  stop)
    ;;
  *)
    echo "Usage: $0 {start|stop|restart|force-reload}" >&2
    exit 3
    ;;
esac
:
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