DragonFly BSD on machines >= 4GB RAM

[Damian Lubosch <dl@xxxxxxxx>]

Hello!

How is it possible to configure DragonFly BSD (2.0.1) to use more than  
3GB of RAM? The BIOS and a test-Linux are capable to use all installed  
4 GB of RAM but when I boot to DFly top shows only 3GB available. I  
know the about the 32-Bit limitation. Is the DFly 64 bit version  
somehow available?

(I googled for about an hour now and did not find any satisfying  
answers)

Regards,
Damian