physical memory reservation

[Anandvel]

I'm writing a driver for a PCI device, which also has an External I/O
(XIO) Bus Interface. I need to reserve some memory from the PC 's address
space to be used by the XIO Interface.

How do i find out a 'memory hole' which could be used, & how do i
'reserve' this memory range, so that it doesn't get allocated/used by any
other device? 

Anand. 

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Anandavel P,
Silicon Automation Systems, HAL IIIrd Stage,
Bangalore 560 075. Phone: [phone] extn 4065
 
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