Thomas Gleixner writes:
> On Thu, Jun 15 2023 at 17:46, Laurent Dufour wrote:
>>
>> -if (ctrlval != cpu_smt_control) {
>> +orig_threads = cpu_smt_num_threads;
>> +cpu_smt_num_threads = num_threads;
>> +
>> +if (num_threads > orig_threads) {
>> +ret = cpuhp_smt_enable(
On Thu, Jun 15 2023 at 17:46, Laurent Dufour wrote:
>
> - if (ctrlval != cpu_smt_control) {
> + orig_threads = cpu_smt_num_threads;
> + cpu_smt_num_threads = num_threads;
> +
> + if (num_threads > orig_threads) {
> + ret = cpuhp_smt_enable();
> + } else if (num_thr
From: Michael Ellerman
Add support to the /sys/devices/system/cpu/smt/control interface for
enabling a specified number of SMT threads per core, including partial
SMT states where not all threads are brought online.
The current interface accepts "on" and "off", to enable either 1 or all
SMT thre
