On Fri, May 13, 2022 at 03:14:57PM -0400, Matthew Rosato wrote: > diff --git a/drivers/vfio/pci/Kconfig b/drivers/vfio/pci/Kconfig > index 4da1914425e1..ac1290d484e1 100644 > +++ b/drivers/vfio/pci/Kconfig > @@ -44,6 +44,17 @@ config VFIO_PCI_IGD > To enable Intel IGD assignment through vfio-pci, say Y. > endif > > +config VFIO_PCI_ZDEV_KVM > + bool "VFIO PCI extensions for s390x KVM passthrough" > + depends on S390 && KVM > + default y > + help > + Support s390x-specific extensions to enable support for enhancements > + to KVM passthrough capabilities, such as interpretive execution of > + zPCI instructions. > + > + To enable s390x KVM vfio-pci extensions, say "say Y"