Resource Allocation for Option Rom

Stefan Reinauer stepan at
Sat May 29 04:38:00 CEST 2004

* Eric W. Biederman <ebiederman at> [040529 05:29]:
> Stefan Reinauer <stepan at> writes:
> > indeed true. But for x86 hardware, putting all of the x86 emulator in
> > rom is less elegant than vm86 stuff, even though I have no clue about
> > the later.
> Last I heard some Option Roms switch to 32bit mode.  You can't do
> that in vm86 mode.  In general using vm86 is a way to put your fate
> in someone else's hands.
Uh, this was the kind of thing I was scared would be the case. what
happens in such a case? Is there any way to trap this and at least
safely state that the device can't be supported?

> We could possibly call the option roms directly but unless the space
> cost is high an open source emulator is a good choice.

So the goal should rather be to reduce the size of the emulator than to
introduce different code paths for different platforms it seems.


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