Re: passing back the unused memory pointer

[Rogelio Serrano]

Groman wrote:

> I'd like to second that. That would be great. Especially if it would also
> come with the size of that unused memory segment...
>
>
>
> > Can we pass the pointer to the first unused memory to the kernel being
> > booted by GRUB? That way i have to avoid reading all the pointers from
> > the multiboot struct to look for the first usable memory after
> > everything to avoid overwriting anything important. maybe we push it
> > into the bootstack before booting or extend the multiboot_info structto
> > include this pointer.
It would save me a lot code n my boot stub because i have to initialize 

paging in assembly and i need to put all the tables in a contiguous block of memory. 
currently i have a presreserved area in bss and i map only the first 4 M 
just to start VM. Then i look for the the first unused memory to place 
the rest of the paging structures in.