Re: qemu oddness with isolinux vesamenu.c32

H. Peter Anvin
2008-07-20T01:45:33Z

> Yes, although simulating the memory "pre-shadowed" works just as well;
> then it should be marked readonly by the BIOS immediately prior to
> running INT 19h.
>

On top of this, getting proper DDIM support and PCI expansion ROM into
the BIOS would be a good thing. A PCI expansion ROM is attached to a
PCI device as a BAR and mapped into high memory, it is then copied to
shadowed RAM by the BIOS and its initialization stub is run. This is
done one device at a time, so that the initialization code can be
discarded, per the DDIM spec.

-hpa