MSR_UNCORE_RATIO_LIMIT
wrmsrq_on_cpu(data->control_cpu, MSR_UNCORE_RATIO_LIMIT,
ret = rdmsrq_on_cpu(data->control_cpu, MSR_UNCORE_RATIO_LIMIT, &cap);
ret = rdmsrq_on_cpu(data->control_cpu, MSR_UNCORE_RATIO_LIMIT, &cap);
ret = wrmsrq_on_cpu(data->control_cpu, MSR_UNCORE_RATIO_LIMIT, cap);