Hello Nathan,

On Wed, Dec 04, 2019 at 04:24:31PM -0600, Nathan Lynch wrote:
> "Gautham R. Shenoy" <e...@linux.vnet.ibm.com> writes:
> > @@ -1067,6 +1097,8 @@ static int __init topology_init(void)
> >                     register_cpu(c, cpu);
> >  
> >                     device_create_file(&c->dev, &dev_attr_physical_id);
> > +                   if (firmware_has_feature(FW_FEATURE_SPLPAR))
> > +                           create_idle_purr_spurr_sysfs_entry(&c->dev);
> 
> Architecturally speaking PURR/SPURR aren't strongly linked to the PAPR
> SPLPAR option, are they? I'm not sure it's right for these attributes to
> be absent if the platform does not support shared processor mode.

Doesn't FW_FEATURE_SPLPAR refer to all Pseries guests ? It is perhaps
incorrectly named, but from the other uses in the kernel, it seems to
indicate that we are running as a guest instead of on a bare-metal
system.

--
Thanks and Regards
gautham.

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