'ssbd', # See parse_spectre_v4_param() in arch/arm64/kernel/proton-pack.c
'slub_debug', # See setup_slub_debug() in mm/slub.c
'iommu', # See iommu_setup() in arch/x86/kernel/pci-dma.c
'ssbd', # See parse_spectre_v4_param() in arch/arm64/kernel/proton-pack.c
'slub_debug', # See setup_slub_debug() in mm/slub.c
'iommu', # See iommu_setup() in arch/x86/kernel/pci-dma.c