Re: [Qemu-devel] SR-IOV PF reset and QEMU VFs VFIO passthrough

[Benoît Canet]

> >to a guest will the consequences of a PF FLR be handled fine by QEMU and the
> >guest ?
> >
> the reset occurs long before the device is passed to the guest.

I was asking this because the PF driver should reset the PF while the VF are
used by VFIO/QEMU when the PF doesn't respond anymore.

> The PF driver doesn't do the config space restore -- it's done in PCI core 
> code.
> >files used by QEMU disappear and reappear messing the QEMU VFIO passthrough 
> >or
> As stated above, the devices don't disappear from the device tree, so they 
> don't
> get removed/added to the /sys(/bus/pci/...) files.
> 
> >will it goes smoothly ?
> >
> it goes smoothly today.... :-/

Happy to read that thanks for the answer.

Best regards

Benoît Canet