ICH_VTR_ID_BITS_SHIFT  569 include/linux/irqchip/arm-gic-v3.h #define ICH_VTR_ID_BITS_MASK		(7 << ICH_VTR_ID_BITS_SHIFT)
ICH_VTR_ID_BITS_SHIFT  299 virt/kvm/arm/vgic/vgic-v3.c 					   ICH_VTR_ID_BITS_SHIFT;