NHMEX_U_MSR_PMON_GLOBAL_CTL
wrmsrq(NHMEX_U_MSR_PMON_GLOBAL_CTL, NHMEX_U_PMON_GLOBAL_EN_ALL);
wrmsrq(NHMEX_U_MSR_PMON_GLOBAL_CTL, 0);
.box_ctl = NHMEX_U_MSR_PMON_GLOBAL_CTL,