#GRUB_CMDLINE_LINUX_DEFAULT="modprobe.blacklist=nouveau modprobe.blacklist=nvidiafb"
#GRUB_CMDLINE_LINUX="intel_iommu=on iommu=pt rd.driver.pre=vfio-pci video=efifb:off vfio_iommu_type1.allow_unsafe_interrupts=1"

#GRUB_CMDLINE_LINUX="kvm_iommu=on iommu=pt"
GRUB_CMDLINE_LINUX="intel_iommu=on iommu=pt pci-stub.ids=10de:1b81,10de:10f1 video=efifb:off"