[SeaBIOS] Xen HVM Support

Kevin O'Connor kevin at koconnor.net
Mon Jun 6 03:20:54 CEST 2011

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.


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