Posted Nov 18, 2005 21:20 UTC (Fri) by tyhik
In reply to: Question
Parent article: Fragmentation avoidance
Heh, not sure you happen to read it any more ...
Yes, you can access that "upper" memory. I have used it on one of my embedded systems. I'm keeping framebuffer in the upper MB of the memory and inform kernel through the mem= option like it didn't have that upper MB. This avoids messing up framebuffer during kernel boot, where the boot loader has already nicely set up a boot logo. Yes, I had to tweak the framebuffer driver to support accessing that memory.
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