[coreboot] Coreboot patches for v2 with SeaBIOS

[yhlu]

On Tue, Jan 20, 2009 at 6:12 PM, Stefan Reinauer <stepan at coresystems.de> wrote:
>
> Kevin O'Connor wrote:
>
> >>
> >> -#if HAVE_MP_TABLE==1
> >> +#if HAVE_MP_TABLE == 1
> >>          /* Don't write anything in the traditional x86 BIOS data segment,
> >>           * for example the linux kernel smp need to use 0x467 to pass reset vector
> >>           * or use 0x40e/0x413 for EBDA finding...
> >>
> >
> > I think the above "#if HAVE_MP_TABLE" branch doesn't make any sense.
> > Currently, coreboot tries to put the mptable in the first 1KiB of ram.
> > If it can't fit, it will put it into the 0xf0000 segment.  This
> > complexity doesn't make any sense, because there is no reason why we
> > can't always put the mptable in the 0xf0000 segment.
> >
> > That is, in the HAVE_LOW_TABLES case, we can use:
> >
> >       rom_table_end = write_smp_table(rom_table_end);
> >       rom_table_end = (rom_table_end+1023) & ~1023;
> >
> > and completely remove the HAVE_MP_TABLE case.
> I think YhLu added that for some side case... Yinghai.. mind to share
> the insight?

should be ok. just need to make sure not mess up with 0x467 and ebda stuff.

YH