$ ovp6/wrlinux-6/wrlinux/configure --enable-board=intel-x86-64 --enable-kernel=preempt-rt --enable-rootfs=ovp-kvm --enable-addons=wr-ovp --with-layer=wr-kvm-binary-guest-images --with-rcpl-version=0007 $ make ... | cp: cannot stat `${PREBUILT_GUEST_KERNEL}': No such file or directory ...
As documentation mentions (_prj/layers/wr-kvm-binary-guest-images/README), use of --with-layer=wr-kvm-binary-guest-images must be in combination with --with-kvm-guest-kernel=<ABS path to kernel .bin file> and --with-kvm-guest-img=<ABS path to rootfs image/initramfs>