Re: [ros-dev] APIC support on uniprocessor machines

[Hartmut Birr]

James Tabor wrote:

>   Hi!
>  Hartmut Birr wrote:
>
> >   Hi,  
> >  if your machine can run M$ windows in APIC mode, you can use the SMP
> >  build. For using the apic mode, the bios must provide an MP structure.
> >  The acpi structures doesn't contain the wiring between the apic and the
> >  physical interrupt lines. But sharing of interrupts in non apic mode
> >  should also work. I've a test machine which does share one interrupt
> >  with two scsi controllers and one network card. The scsi cards work
> >  perfectly. The nic driver is loaded, but it didn't work properly. I
> >  think this has nothing to do with the interrupt.
> >
> >  - Hartmut
> >  
>  I'm run Linux with APIC uniprocessor compiled w/o smp support. But would
>  that make a difference?  
No, that is the same. Sorry, If I assumed that you are using windows. :-)

>   I'll try compiling smp to see.
>  
I think, it is possible to use the smp hal with the non smp kernel to
enable the apic support. There are only some little changes in
ntoskrnl\ke\i386\irq.c necessary.

- Hartmut