Re: [PATCH v9 02/12] x86/resctrl: Require 64-bit x86 for resctrl support

[Chen Yu <yu.c.chen@intel.com>]

Hi Reinette,

On Fri, Oct 23, 2026 at 04:46:22PM -0700, Reinette Chatre wrote:
> Hi Chenyu,
> 
> On 10/13/26 7:58 PM, Chen Yu wrote:
> > From: Tony Luck <tony.luck@intel.com>
> > 
> > Intel Application Energy Telemetry (AET) provides event counts in 64-bit
> > registers in MMIO space. For accurate results these should be read with a
> > single 64-bit load operation from the CPU.
> > 
> > In preparation for the removal of the separate CONFIG_X86_CPU_RESCTRL_INTEL_AET
> > configuration option, move the X86_64 dependency to X86_CPU_RESCTRL.
> > 
> > This is in line with Dave Hansen's proposal[1] for an addition to Linux
> > documentation that details reduced 32-bit x86 support.
> > 
> > Signed-off-by: Tony Luck <tony.luck@intel.com>
> > Signed-off-by: Chen Yu <yu.c.chen@intel.com>
> > Link: https://lore.kernel.org/all/c6ab0c24-8931-4f0d-9be6-23498ab4c38b@intel.com/ # [1]
> > ---
> > Changes since v8:
> > - Pick up the latest version of this patch from the AET series so that
> >   both series carry identical versions. Changelog wording only, no code
> 
> Please do continue to keep a note in patch changelog explaining that this is
> picked from the AET work to help explain why the changelog is unrelated to rest of
> the series.
>

Sure, I will keep that note in v10's changelog.

> Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
>

Thanks!

thanks,
Chenyu