[coreboot] Allow payloads to write over Coreboot tables, add a warning

[Myles Watson]

> -----Original Message-----
> From: Stefan Reinauer [mailto:stepan at coresystems.de]
> Sent: Wednesday, May 21, 2008 4:03 PM
> To: Myles Watson
> Cc: 'Coreboot'
> Subject: Re: [coreboot] Allow payloads to write over Coreboot tables, add
> a warning
> 
> Myles Watson wrote:
> >
> >> -----Original Message-----
> >> From: Stefan Reinauer [mailto:stepan at coresystems.de]
> >> Sent: Wednesday, May 21, 2008 3:57 PM
> >> To: Myles Watson
> >> Cc: Coreboot
> >> Subject: Re: [coreboot] Allow payloads to write over Coreboot tables,
> add
> >> a warning
> >>
> >> Myles Watson wrote:
> >>
> >>> This is a simple patch which allows payloads to be placed in memory in
> >>> the range of 0xf0000-0x100000, where the Coreboot tables live in v2.
> >>> As long as the payload doesn't need the tables, it seems harmless, so
> >>> why not just print a warning?
> >>>
> >> It will definitely break your interrupt routing ... While I agree this
> >> is OK for testing, we have to find a better solution for this.
> >>
> >
> > Yes.
> >
> > As soon as we decide how we want to pass information to legacybios, it
> > should be clear what the better solution is.
> >
> > One solution is a libpayload-based loader that copies the information
> and
> > passes the relevant parts to legacybios.  Until legacybios uses any of
> that
> > information, though, it might as well be copied over.
> >
> 
> It'll be fine for testing and doesn't really break anything that did
> work before...
> 
> Acked-by: Stefan Reinauer <stepan at coresystems.de>

Rev 3343.
Thanks,
Myles