Define Linux system memory

[Clint Thomas]

To anybody who has done this before or understands how to do this, I was
wondering if you know how to "tell" the kernel how much memory there is
in the system. An example would be if I have 512MB of RAM, but only want
the system to know that there is about 500MB in RAM, so that 12MB does
not exist to the OS/kernel. Would this require mucking about in U-boot?
or can I just define this in the kernel source? Thanks
 
Clinton Thomas
 
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