RE: [RFC PATCH 0/8] vfio/pci: Support dynamic allocation of MSI-X interrupts

From: Tian, Kevin
Date: Thu Mar 16 2023 - 19:52:41 EST


> From: Chatre, Reinette <reinette.chatre@xxxxxxxxx>
> Sent: Friday, March 17, 2023 7:38 AM
>
> > Based on above, there really can never be an error if we expect the
> > device to work, so I think there's a misread of the current status.
> > Dynamic MSI-X support should simply reduce the disruption and chance
> > of lost interrupts at the device, but the points where we risk that
> > the host cannot provide the configuration we need are the same.
>
> Thank you very much Alex. In this case, please do consider this
> submission as a submission for inclusion. I'd be happy to resubmit
> without the "RFC" prefix if that is preferred.
>

With that do we still want to keep the error behavior for MSI?

If no patch5 can be simplified e.g. no need of vfio_irq_ctx_range_allocated()
and MSI/MSI-X error behaviors become consistent.