On Wed, Jun 19, 2024 at 12:56:47PM +0200, Niklas Schnelle wrote: > In short, the ISM BAR 0 is stupidly large but this is intentional. It > not fitting in the VMAP is simply the least crazy filter I could come > up with to keep the ISM device from causing trouble for use of vfio-pci > mmap() for other, normal, PCI devices. Then maybe add a PCI quirk to prevent mapping it. This would also affect the sysfs resource0 file unless I'm missing something.