On Wed, 13 Aug 2025 10:08:18 -0700 Farhan Ali <alifm@xxxxxxxxxxxxx> wrote: > diff --git a/include/uapi/linux/vfio_zdev.h b/include/uapi/linux/vfio_zdev.h > index 77f2aff1f27e..bcd06f334a42 100644 > --- a/include/uapi/linux/vfio_zdev.h > +++ b/include/uapi/linux/vfio_zdev.h > @@ -82,4 +82,9 @@ struct vfio_device_info_cap_zpci_pfip { > __u8 pfip[]; > }; > > +struct vfio_device_zpci_err_region { > + __u16 pec; > + int pending_errors; > +}; > + > #endif If this is uapi it would hopefully include some description, but if this is the extent of what can be read from the device specific region, why not just return it via a DEVICE_FEATURE ioctl? Thanks, Alex