fi
fi
- [ "$QEMU_SMP" ] || QEMU_SMP=1
+ # If QEMU_SMP was not explicitly set, try to determine the value 'dynamically'
+ # i.e. use the number of online CPUs on the host machine. If the nproc utility
+ # is not installed or there's some other error when calling it, fall back
+ # to the original value (QEMU_SMP=1).
+ if ! [ "$QEMU_SMP" ]; then
+ if ! QEMU_SMP=$(nproc); then
+ dwarn "nproc utility is not installed, falling back to QEMU_SMP=1"
+ QEMU_SMP=1
+ fi
+ fi
find_qemu_bin || return 1