Can't understand /proc/interrupts output for GICv3 case

Peter Maydell peter.maydell at
Mon Apr 11 10:32:23 EDT 2022

On Mon, 11 Apr 2022 at 15:22, Chan Kim <ckim at> wrote:
> > > > What bus type is your driver written for?
> > > >
> > > That sounds very logical. In my case I added it to system bus.
> >
> > What exactly do you mean by "system bus"?
> >
> I meant 'sysbus' in qemu code that I showed in the qemu code.
> And I think it's the CPU bus.

The 'sysbus' is just QEMU's abstraction for "devices mapped into
memory at a fixed physical address", ie simple MMIO devices that
aren't on a complex bus like PCI or USB or SPI.

-- PMM

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