Re: [ros-dev] 2GB Boundary

"Aliberti Emanuele" <ea(a)iol.it> 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