[Qemu-devel] Re: Re: [PATCH 0/3]: Add UUID command-line option

[Sebastian Herbszt]

Anthony Liguori wrote:
> > >  I like having a configuration blob but am uncomfortable with stashing it in
> > > memory somewhere.  I would think maybe stealing a few IO ports and using
> > > that to read the rom may be nicer (albeit slower).  I think it's something
> > > that needs to be implemented fully to work out the kinks.
> > >     
> >
> > Ok, I made a new version that uses IO ports. But then you have to
> > select a port instead of address, is that any better?
> >   
>
> A lot of the BIOS code is 16-bit and accessing high memory location from 
> 16-bit code is a royal pain.  That is simplified with using IO ports.

Could put it in the 0xe000 segment, e.g. 4kb below rombios16.bin at 0xf000.

- Sebastian