> I wish to be able to tell linux with a command line parameter (much like you
> can for IO ports with "region=0x1000,128") that it shouldn't allocate this 1M
> to anything itself but allow access to it from ring 0. Maybe by configuring
> paging system in some way.
I'd like to second this. It is often usefull to exclude some areas of
memory. (For example if you are hunting bug in CPU ;-).
PS: Patch is easy to do. If you convince Linus to include it, I
volunteer to write it.
Pavel
-- I'm really pavel@atrey.karlin.mff.cuni.cz. Pavel Look at http://atrey.karlin.mff.cuni.cz/~pavel/ ;-).