Re: [PATCH v6 2/9] x86/resctrl: Require 64-bit x86 for resctrl support

[Reinette Chatre]

Hi Chenyu,

On 7/25/26 2:22 AM, Chen Yu wrote:
> All known hardware that supports Intel RDT or AMD QoS is 64-bit. Future
> enhancements like MMIO-based Enhanced RDT (ERDT) monitoring require
> readq()/writeq() which are only available on 64-bit. There is also no
> realistic use case for users to build a 32-bit kernel on a server and
> enable resctrl.
> 
> Drop 32-bit support by changing the X86_CPU_RESCTRL dependency from X86
> to X86_64.
> 
> Since X86_CPU_RESCTRL now implies X86_64, remove the redundant X86_64
> dependency from X86_CPU_RESCTRL_INTEL_AET.
> 
> Signed-off-by: Chen Yu <yu.c.chen@xxxxxxxxx>
> Tested-by: Hongyu Ning <hongyu.ning@xxxxxxxxxxxxxxx>
> ---

Reviewed at:
https://lore.kernel.org/lkml/d97deaa1-f42c-4fce-8ca8-5ccf8d822cd2@xxxxxxxxx/

Reinette