Re: [SeaBIOS] [PATCH v2] Make pci memory window configurable.

[Gerd Hoffmann]

Hi,
> > Is there any reason why there is a fixed split, other than making the
> > code simpler (i.e. need only one instead of two passes over all pci
> > devices)?
>
> Because pci-to-pci bridge handles memory access and preferchable memory
> access differently.

Sure.  The reason for the two regions is clear.  But we could still 
calculate the size at runtime I think.  i.e. do one pass, figure how 
much bars with which sizes we have for each type, calculate the window 
sizes we'll need, then do a second pass and map the pci regions.  That 
would also allow to pack the regions better.

cheers,
   Gerd