SA_CTRL_DP_LBP_R
prot->lbp_r = (dp_page->prot_bits & SA_CTRL_DP_LBP_R) ? 1 :0;
if (dp_changeable->prot_bits & SA_CTRL_DP_LBP_R) {
dp_page->prot_bits |= SA_CTRL_DP_LBP_R;
dp_page->prot_bits &= ~SA_CTRL_DP_LBP_R;