FM / parameters

/sys/module/vfio_pci/parameters

Name	Size	Mode	Actions
disable_idle_d3	4096	0644	edit dl rm
disable_vga	4096	0444	edit dl rm
nointxmask	4096	0644	edit dl rm

Edit: /sys/module/vfio_pci/parameters/nointxmask (4096B)