[SeaBIOS] Xen HVM Support

[Kevin O'Connor]

On Mon, Jun 06, 2011 at 09:54:54AM +0100, Ian Campbell wrote:
> On Mon, 2011-06-06 at 02:20 +0100, Kevin O'Connor wrote:
> > On Wed, Jun 01, 2011 at 10:59:10AM +0100, Ian Campbell wrote:
> > > The following enables support for running SeaBIOS as the virtual BIOS
> > > in a Xen HVM (fully-virtualised) guest.
> > > 
> > > In this series SeaBIOS is loaded by hvmloader (the Xen early firmware)
> > > rather than directly as was previously tried. This approach turned out
> > > to be far less intrusive on the SeaBIOS side and leaves knowledge of
> > > the virtual hardware setup encapsulated within hvmloader which is
> > > updated in lock step with the hypervisor and associated tools.
> > > 
> > > BIOS tables are built by hvmloader and passed to SeaBIOS via a simple
> > > in memory data structure. The tables are identified by scanning for
> > > their signatures which is hopefully extensible enough but the core
> > > structure can also be extended as necessary.
> > 
> > It looks okay to me.
> 
> Thanks.
> 
> All the Xen side pieces are in place already (although not set in stone
> if you find something you would like done different).

I've committed this.

Thanks,
-Kevin