MASK_LVTOFF_HI
mce_threshold_block_init(b, (high & MASK_LVTOFF_HI) >> 20);
int msr = (hi & MASK_LVTOFF_HI) >> 20;
hi &= ~MASK_LVTOFF_HI;
new = (misc_high & MASK_LVTOFF_HI) >> 20;