Kconfig

 1config VBOXSF_FS
 2	tristate "VirtualBox guest shared folder (vboxsf) support"
 3	depends on (ARM64 || X86) && VBOXGUEST
 4	select NLS
 5	help
 6	  VirtualBox hosts can share folders with guests, this driver
 7	  implements the Linux-guest side of this allowing folders exported
 8	  by the host to be mounted under Linux.
 9
10	  If you want to use shared folders in VirtualBox guests, answer Y or M.