GICD_ICPENDR
n = (reg - GICD_ICPENDR(0)) / 4;
VGIC_REGISTER_RAZ_WI(GICD_ICPENDR(0), 4, VGIC_32_BIT),
VGIC_REGISTER_RANGE(GICD_ICPENDR(32), GICD_ICPENDR(1024), 4,