Re: [PATCH v1] s390/vfio-ap: Signal eventfd when guest AP configuration is changed

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On Wed, Feb 05, 2025 at 12:47:55PM -0500, Anthony Krowiak wrote:
> > > How this patch is synchronized with the mentioned QEMU series?
> > > What is the series status, especially with the comment from Cédric
> > > Le Goater [1]?
> > > 
> > > 1. https://lore.kernel.org/all/20250107184354.91079-1-rreyes@xxxxxxxxxxxxx/T/#mb0d37909c5f69bdff96289094ac0bad0922a7cce
...
> > Hey Alex, sorry for the long delay. This patch is synchronized with the
> > QEMU series by registering an event notifier handler to process AP
> > configuration
> > 
> > change events. This is done by queuing the event and generating a CRW.
> > The series status is currently going through a v2 RFC after implementing
> > changes
> > 
> > requested by Cedric and Tony.
> > 
> > Let me know if there's anything else you're concerned with
> > 
> > Thanks!
> 
> I don't think that is what Alex was asking. I believe he is asking how the
> QEMU and kernel patch series are going to be synchronized.
> Given the kernel series changes a value in vfio.h which is used by QEMU, the
> two series need to be coordinated since the vfio.h file
> used by QEMU can not be updated until the kernel code is available. So these
> two sets of code have
> to be merged upstream during a merge window. which is different for the
> kernel and QEMU. At least I think that is what Alex is asking.

Correct.
Thanks for the clarification, Anthony!




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