APIC_EILVT_LVTOFF_IBS  304 arch/x86/kernel/apic_32.c #define APIC_EILVT_LVTOFF_IBS 1
APIC_EILVT_LVTOFF_IBS  316 arch/x86/kernel/apic_64.c #define APIC_EILVT_LVTOFF_IBS 1