[LinuxBIOS] LinuxBIOSv3 lgdt and gdtptr patch

[Myles Watson]

> > > > It was submitted (but not in patch form) by Brendan Trotter
> > > > http://www.mail-archive.com/linuxbios@linuxbios.org/msg08771.html
> > > >
> > > > Here it is in patch form.
> > > > -	data32	lgdt %cs:gdtptr
> > > > +	movl	$gdtptr, %ebx
> > > > +	lgdt	%cs:(%bx)
> > > >
> > > > It removes the first line, which causes some compilers to give a
> > > > "truncated gdtptr" error, and replaces it with an intermediate load
> > > > step. I think it should be tested by someone with the "working"
> > > > compiler, to compare the output.
> > >
> > > Please repost with a Signed-off-by.
> >
> > I was hoping Brendan Trotter would supply that, since it was his work.
> It
> > could be considered trivial, though, if the compiler output is the same.
> 
> Yes, I guess this is trivial enough so you can post it with your
> Signed-off-by, but if Brendan (CC'd) can re-send with a Signed-off-by
> that's fine too, of course.

I tried it on a different compiler (4.1.1) and the patch builds, but won't
boot on qemu.  Without the patch it builds and boots.

I'll just upgrade my compiler.

Myles