grep REISER4_FS .config
grep TMEM .config
grep TUN .config

        #grep CONFIG_NF_TABLES_INET .config
        #grep NETFILTER_ADVANCED .config
        #grep NETFILTER_NETLINK_QUEUE .config
        #grep CONFIG_NFT_CT .config

print KVM GUEST AND VIRTIO
cat >> .config <<EOF9
CONFIG_KVM=y
CONFIG_BLK_MQ_VIRTIO=y
CONFIG_MEMORY_BALLOON=y
CONFIG_BALLOON_COMPACTION=y
CONFIG_PAGE_REPORTING=y
CONFIG_FAILOVER=y
CONFIG_VIRTIO_BLK=y
CONFIG_SCSI_LOWLEVEL=y
CONFIG_SCSI_VIRTIO=y
CONFIG_VIRTIO_NET=y
CONFIG_NET_FAILOVER=y
CONFIG_HW_RANDOM_VIRTIO=y
CONFIG_VIRTIO=y
CONFIG_VIRTIO_PCI_LIB=y
CONFIG_VIRTIO_PCI=y
CONFIG_VIRTIO_BALLOON=y
EOF9
make olddefconfig && print done\\n

#grep VXLAN .config
#grep OVERLAY_FS .config

https://cateee.net/lkddb/web-lkddb/BALLOON_COMPACTION.html
https://www.kernel.org/doc/Documentation/networking/tuntap.txt
https://cateee.net/lkddb/web-lkddb/PARAVIRT_SPINLOCKS.html

https://cateee.net/lkddb/web-lkddb/KVM.html
https://www.kernelconfig.io/config_kvm

#[[ -z `grep ^CONFIG_KVM .config` ]] && bomb failed to setup KVM
#[[ -z `grep ^CONFIG_VIRTIO .config` ]] && bomb failed to setup VIRTIO