DIMM relocation on Tyan S2885
Eric W. Biederman
ebiederman at lnxi.com
Sun Jan 11 19:45:00 CET 2004
Matt Harvey <m.j.harvey at ucl.ac.uk> writes:
> I have an Opteron machine based on the Tyan K8W S2885 mainboard which is
> equipped with 8GB of RAM (8x1GB DIMM). The BIOS is mapping the PCI/AGP
> devices into the address space immediately below 4GB and so
> consequently, I am losing access to nearly an entire 1GB of RAM. I've
> spoken to Tyan about this and they acknowledged that it it is principle
> possible for the BIOS to remap the DIMM presently located at 3GB to 9GB
> but that they have no intention of including this option in their BIOS
> as it "penalizes 32-bit OS's that cannot use more than 4GB."
> So the question to the panel is: Will LinuxBIOS solve this problem for
> me? The task this machine was purchased for really does require as much
> RAM as possible.
At the present moment that is not implemented by LinuxBIOS. It is
something I would like to work on, but it has not been a priority yet.
I think I could do it a day or two a week with testing etc.
There are a couple of ways LinuxBIOS could solve this problem.
1) You have the code so you can implement that, so you are not helpless.
2) You can wait until I get around to implementing for other reasons.
3) You can pay one of the vendors doing LinuxBIOS to fix it for you.
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