Re: [patch][rfc]flattened device tree: Passing a dtb (blob) to Linux.

[Michael Ellerman <michaelellerman@internode.on.net>]

On Thu, 2006-04-13 at 09:19 -0400, Jimi Xenidis wrote:
> Actually, is this even an issue? can the LMB handle repeated  
> reservations?

It can, but we were thinking about adding code to check and warn if
reservations overlap, because it usually indicates a bug. Although
that's probably ok in this case, as long as dtc gets fixed eventually.
Another option would be to not warn for identical reservations.

cheers

> On Apr 13, 2006, at 7:07 AM, Michael Ellerman wrote:
> 
> > On Thu, 2006-04-13 at 06:37 -0400, Jimi Xenidis wrote:
> >> On Apr 13, 2006, at 1:36 AM, Michael Neuling wrote:
> >>
> >>> Hey Jimi,
> >>>
> >>>>> NOTE: that the dtc must also not generate the blob reservation
> >>>>> entry.
> >>>>
> >>>> This reservation is only generated for "asm" dtc targets so it is
> >>>> only that case that need to be changed.
> >>>
> >>> The user space kexec tools create a reserve map entry for the  
> >>> blob as
> >>> well.
> >> good point, but I thought the kexec tools used dtc, no?
> >
> > No, but they should.
> >
> >> looking passed my own world I see:
> >>    - iSeries: not reserving the blob at all
> >
> > That sounds right. I think having the kernel do it is definitely the
> > right option.
> >
> > cheers
> >
> > -- 
> > Michael Ellerman
> > IBM OzLabs
> >
> > wwweb: http://michael.ellerman.id.au
> > phone: +61 2 6212 1183 (tie line 70 21183)
> >
> > We do not inherit the earth from our ancestors,
> > we borrow it from our children. - S.M.A.R.T Person
> >
> 
-- 
Michael Ellerman
IBM OzLabs

wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)

We do not inherit the earth from our ancestors,
we borrow it from our children. - S.M.A.R.T Person