On Mon, May 12, 2003 at 10:44:08AM -0700, Jun Sun wrote:
> On Mon, May 12, 2003 at 11:56:41AM +0100, Ladislav Michl wrote:
> > Could anyone tell me where is space for exception vectors reserved? Many
> > boards
> > (for example Alchemy Pb1000, Galileo EV96100 or Galileo EV64120A) simply
> > registers all available RAM with add_memory_region call, but I didn't find
> > code
> > which reserves first 0x200 (on most CPUs) for exceptions vectors anywhere.
> > I'd
> > guess there is something obvious what I'm missing. Can you help me to see
> > it?
> Kernel only uses memory after the end of kernel image. In that sense, all
> memory before LOADADDR (see arch/mips/Makefile) is reserved.
I'm afraid, I didn't find any code which does what you're describing here.
But in arch/mips/mm/init.c is function setup_zero_pages which allocates
first (or first eight if CPU has VCE) page(s). Does it do the trick?