Re: [SeaBIOS] Running out of space in e/f-segments

[Avi Kivity]

On 08/22/2010 02:15 PM, Gleb Natapov wrote:
> > 4 - Have the entry points switch immediately to 32-bit mode and call
> > 32-bit unpaged code in 4G-2M+.  Everything, for example the INT 13
> > code, would run in 32-bit mode from high memory.
>
> IIRC this was discussed already. Some applications call BIOS from vm16
> mode so switch to 32-bin is impossible.

Ugh.  We could use the old 286 trick and reset the CPU to escape to real 
mode, but this isn't a viable solution (for example, how would we get back?)