test/run-qemu

   1 #!/bin/bash
   2 # Check which virtualization technology to use
   3 # We prefer kvm, kqemu, userspace in that order.
   4
   5 export PATH=/usr/sbin:/usr/bin:/sbin:/bin
   6 ARCH="${ARCH-$(uname -m)}"
   7 QEMU_CPU="${QEMU_CPU:-max}"
   8
   9 [[ -x /usr/bin/qemu ]] && BIN=/usr/bin/qemu && ARGS=(-cpu "$QEMU_CPU")
  10 (lsmod | grep -q '^kqemu ') && BIN=/usr/bin/qemu && ARGS=(-kernel-kqemu -cpu host)
  11 [[ -c /dev/kvm && -x /usr/bin/kvm ]] && BIN=/usr/bin/kvm && ARGS=(-cpu host)
  12 [[ -c /dev/kvm && -x /usr/bin/qemu-kvm ]] && BIN=/usr/bin/qemu-kvm && ARGS=(-cpu host)
  13 [[ -c /dev/kvm && -x /usr/libexec/qemu-kvm ]] && BIN=/usr/libexec/qemu-kvm && ARGS=(-cpu host)
  14 [[ -x "/usr/bin/qemu-system-${ARCH}" ]] && BIN="/usr/bin/qemu-system-${ARCH}" && ARGS=(-cpu "$QEMU_CPU")
  15 [[ -c /dev/kvm && -x "/usr/bin/qemu-system-${ARCH}" ]] && BIN="/usr/bin/qemu-system-${ARCH}" && ARGS=(-enable-kvm -cpu host)
  16
  17 [[ $BIN ]] || {
  18     echo "Could not find a working KVM or QEMU to test with!" >&2
  19     echo "Please install kvm or qemu." >&2
  20     exit 1
  21 }
  22
  23 # Provide rng device sourcing the hosts /dev/urandom and other standard parameters
  24 ARGS+=(-M q35 -smp 2 -m 1024 -nodefaults -vga none -display none -no-reboot -device virtio-rng-pci)
  25
  26 if ! [[ $* == *-daemonize* ]] && ! [[ $* == *-daemonize* ]]; then
  27     ARGS+=(-serial stdio)
  28 fi
  29
  30 KVERSION=${KVERSION-$(uname -r)}
  31
  32 VMLINUZ="/lib/modules/${KVERSION}/vmlinuz"
  33
  34 if ! [ -f "$VMLINUZ" ]; then
  35     [[ -f /etc/machine-id ]] && read -r MACHINE_ID < /etc/machine-id
  36
  37     if [[ $MACHINE_ID ]] && { [[ -d /boot/${MACHINE_ID} ]] || [[ -L /boot/${MACHINE_ID} ]]; }; then
  38         VMLINUZ="/boot/${MACHINE_ID}/$KVERSION/linux"
  39     else
  40         VMLINUZ="/boot/vmlinuz-${KVERSION}"
  41     fi
  42 fi
  43
  44 # only set -kernel if -initrd is specified
  45 if [[ $* == *-initrd* ]]; then
  46     ARGS+=(-kernel "$VMLINUZ")
  47 fi
  48
  49 echo "${0##*/}: $BIN ${ARGS[*]@Q} ${*@Q}"
  50 exec "$BIN" "${ARGS[@]}" "$@"