#!/bin/bash
# Check which virtualization technology to use
# We prefer kvm, kqemu, userspace in that order.
export PATH=/sbin:/bin:/usr/sbin:/usr/bin

[[ -x /usr/bin/qemu ]] && BIN=/usr/bin/qemu && ARGS=""
$(lsmod | grep -q '^kqemu ') && BIN=/usr/bin/qemu && ARGS="-kernel-kqemu "
[[ -c /dev/kvm && -x /usr/bin/kvm ]] && BIN=/usr/bin/kvm && ARGS=""
[[ -c /dev/kvm && -x /usr/bin/qemu-kvm ]] && BIN=/usr/bin/qemu-kvm && ARGS=""
[[ -c /dev/kvm && -x /usr/libexec/qemu-kvm ]] && BIN=/usr/libexec/qemu-kvm && ARGS=""

[[ $BIN ]] || {
   echo "Could not find a working KVM or QEMU to test with!" >&2
   echo "Please install kvm or qemu." >&2
   exit 1
}
exec sudo $BIN $ARGS "$@"
