request memory from kernel

Sat Nov 3 10:02:36 EDT 2012

HI
I would like to reserve some of the system memory for our kernel modules.
After some googling there seems to be there are different ways of doing this but still I am not clear.
My question is if I want to put aside some portion of the our platform memory (about 300 Mbytes) for couple of our kernel modules, how could I achieve this and how to access the dedicated memory for those modules at the run time.

Many thanks in advance,
B
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