user/kernel KVA sizing at boot.

[Alan Evans]

Hi All,
    I would like to know if user/kernel VA can be
adjusted during boot? I would like to provide 2G for
user
and 2G for kernel. This will change the load address
of
the kernel. Does FreeBSD allow for doing this
dynamically? If not, what needs to be changed to
achieve this. 


Thanks very much.


Alan.