Messages in this thread | | | Subject | Re: physical memory reservation | Date | Fri, 14 Jan 2000 17:48:41 +0000 (GMT) | From | Alan Cox <> |
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> 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.
Ok
> 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?
You put it in your PCI BAR registers and the BIOS will allocate you some PCI space for it
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