ICH_VTR_EL2_PRIBITS_SHIFT
#define ICH_VTR_EL2_PRIBITS_MASK (0x7 << ICH_VTR_EL2_PRIBITS_SHIFT)
((((x) & ICH_VTR_EL2_PRIBITS_MASK) >> ICH_VTR_EL2_PRIBITS_SHIFT) + 1)