Re: [Qemu-devel] [PATCH] IRQ sharing in PCI bus

[Fabrice Bellard]

Paul Brook wrote:
> On Saturday 23 September 2006 18:38, Fabrice Bellard wrote:
>
> > andrzej zaborowski wrote:
> >
> > > This allows multiple PCI devices on a bus to use the same IRQ lines.
> > > The signals from all devices are ORed. It will only work if the guest
> > > OS'es drivers supports that.
> > >
> > > Linux guest required that to have scsi disks and usb devices working
> > > at the same time on an emulated Versatile PB machine.
> >
> > PCI IRQ sharing is already implemented, at least for piix3. You should
> > look at that code and try to fix the related code in other PCI controllers.
>
>
> Seems silly to implement this several times rather than once in generic code.

Right. My comment did not exclude that :-)

Fabrice.