Re: [ros-dev] 2GB Boundary

"Aliberti Emanuele" [e-mail] wrote:
> > I agree! But I think we should move the ntoskrnl base address to

0x80100000
> > and map the first MB of physical memory to 0x80000000 - 0x800FFFFF in

order
> > to simplify BIOS calls.
>
> Does that conflict with the statement I read in some books about
> completely skipping the low 64k physical address range for ease of
> detecting NULL pointers?

This is not 100% correct. The lowest 64k of the process _virtual_ address
space is is reserved and protected in order to detect NULL pointer access.

Regards,
Eric