THIS IS AWESOME!
http://www.omgubuntu.co.uk/2018/01/virtualbox-guest-additions-linux-kernelWork to add features in VirtualBox Guest Additions to the Linux kernel is underway by kernel developers. The first fruits of their labor will appear in Linux 4.16.
These additional features are licensed under the GPL and sit in the kernel tree. That means no additional proprietary code or binary blobs are loaded on your system
Why does this matter?
Well, it means the next time you boot a Linux distribution with the Linux 4.16 (or later) kernel, VirtualBox Guest Additions will be already installed. You won’t need to enable, add, install or tweak anything (in theory).
Basic system integration features like seamless mode and copy and paste between guest and host will “just work”. Devs even plan to support shared folders out of the box in a future kernel release.
