On Tue, Feb 02, 2021 at 05:06:59PM +0100, Cornelia Huck wrote: > On the other side, we have the zdev support, which both requires s390 > and applies to any pci device on s390. Is there a reason why CONFIG_VFIO_PCI_ZDEV exists? Why not just always return the s390 specific data in VFIO_DEVICE_GET_INFO if running on s390? It would be like returning data from ACPI on other platforms. It really seems like part of vfio-pci-core Jason