Memory management for graphics processors

Later GPUs such as Intel 965 and up, and ATI r500, and Nvidia g80, have page table support
that can be leverage at a hw level...

However we can mostly protect things using the kernel with the TTM layer described above. It
won't let you access video ram directly everything must go through a buffer object which has
basic sharing permissions.

In the future we hope to implement better permission models and maybe even some sort of
SELinux integration.