Re: [PATCH 25/32] vfio/pci: re-introduce CONFIG_VFIO_PCI_ZDEV

[Matthew Rosato]

On 12/17/21 11:49 AM, Christian Borntraeger wrote:
> Am 07.12.21 um 21:57 schrieb Matthew Rosato:
> > This was previously removed as unnecessary; while that was true, 
> > subsequent
> > changes will make KVM an additional required component for vfio-pci-zdev.
> > Let's re-introduce CONFIG_VFIO_PCI_ZDEV as now there is actually a reason
> > to say 'n' for it (when not planning to CONFIG_KVM).
> >
> > Signed-off-by: Matthew Rosato <mjrosato@xxxxxxxxxxxxx>
> > ---
> >   drivers/vfio/pci/Kconfig      | 11 +++++++++++
> >   drivers/vfio/pci/Makefile     |  2 +-
> >   include/linux/vfio_pci_core.h |  2 +-
> >   3 files changed, 13 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/vfio/pci/Kconfig b/drivers/vfio/pci/Kconfig
> > index 860424ccda1b..fedd1d4cb592 100644
> > --- a/drivers/vfio/pci/Kconfig
> > +++ b/drivers/vfio/pci/Kconfig
> > @@ -42,5 +42,16 @@ config VFIO_PCI_IGD
> >         and LPC bridge config space.
> >         To enable Intel IGD assignment through vfio-pci, say Y.
> > +
> > +config VFIO_PCI_ZDEV
> > +    bool "VFIO PCI extensions for s390x KVM passthrough"
> > +    depends on S390 && KVM
>
> does this also depend on vfio-pci?

Yes - but this config statement is already contained within an 'if 
VFIO_PCI' block along with config VFIO_PCI_VGA and config VFIO_PCI_IGD.