> > What advantage does it have over skipping the per-domain list and > > just providing a single value for all domains? You clearly expect this > > will be a common user request since you implemented the "*" means > > apply to all domains. > > > > We started with a global assignment by applying assignment across all the > domains initially. > > But we wanted give a generic approach which allows both the options(domain > specific assignment and global assignment with '*"). It is also matches > with other managements (RMID/CLOSID management) we are doing in resctrl > right now. Also, there is an extra IPI for each domain if user is only > interested in on domain. > > Some of the discussions are here. > https://lore.kernel.org/lkml/f7dac996d87b4144e4c786178a7fd3d218eaebe8.1711674410.git.babu.moger@xxxxxxx/#r My summary of that: Peter: Complex, don't need per-domain. Reinette: Maybe some architecture might want per-domain. Since you seem to want to keep the flexibility for a possible future where per-domain is needed. The "available_mbm_cntrs" file suggested in another thread would need to list available counters on each domain to avoid ABI problems should that future arrive. $ cat num_mbm_counters 32 $ cat available_mbm_cntrs 0=12;1=9 Current implementation would show same number for all domains. -Tony
