Re: [RESEND PATCH v4 02/15] x86/resctrl: Add PLZA support to command-line options

[Babu Moger]

Hi Reinette,

On 8/10/26 21:53, Reinette Chatre wrote:
> Hi Babu,
>
> On 7/7/26 2:50 PM, Babu Moger wrote:
> > Add a kernel command-line parameter to enable or disable the exposure of
> > the PLZA (Privilege Level Zero Association) feature to resctrl.
> >
> > This allows administrators to control PLZA visibility at boot time via the
> > rdt= option (e.g. rdt=plza or rdt=!plza).
>
> nit: Since this provides examples of the only two supported usages it may be helpful
> to make clear when these options are required since users should not need to always
> boot with rdt=plza to use this feature.
Will add text:

On systems that support PLZA, resctrl exposes kernel-mode PLZA control
by default without requiring any explicit rdt= option. The rdt=!plza
parameter can be used to disable PLZA exposure to resctrl, while
rdt=plza explicitly enables it.

Thanks
Babu