From: Reinette Chatre <reinette.chatre@intel.com>
To: Babu Moger <babu.moger@amd.com>, <tony.luck@intel.com>,
<bp@alien8.de>, <ben.horgan@arm.com>
Cc: <corbet@lwn.net>, <skhan@linuxfoundation.org>,
<rdunlap@infradead.org>, <x86@kernel.org>, <Dave.Martin@arm.com>,
<james.morse@arm.com>, <tglx@kernel.org>, <mingo@redhat.com>,
<dave.hansen@linux.intel.com>, <hpa@zytor.com>,
<fenghuay@nvidia.com>, <kas@kernel.org>,
<rick.p.edgecombe@intel.com>, <akpm@linux-foundation.org>,
<rppt@kernel.org>, <dapeng1.mi@linux.intel.com>,
<elver@google.com>, <enelsonmoore@gmail.com>,
<jlayton@kernel.org>, <kuba@kernel.org>, <ebiggers@kernel.org>,
<seanjc@google.com>, <ewanhai-oc@zhaoxin.com>,
<binbin.wu@linux.intel.com>, <peterz@infradead.org>,
<ashish.kalra@amd.com>, <superm1@kernel.org>,
<chang.seok.bae@intel.com>, <prathyushi.nangia@amd.com>,
<kim.phillips@amd.com>, <ackerleytng@google.com>,
<elena.reshetova@intel.com>, <naveen@kernel.org>,
<darwi@linutronix.de>, <linux-doc@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <linux-coco@lists.linux.dev>,
<kvm@vger.kernel.org>, <eranian@google.com>,
<peternewman@google.com>
Subject: Re: [PATCH v6 02/18] x86/resctrl: Add PLZA support to command-line options
Date: Thu, 15 Oct 2026 07:17:22 -0700 [thread overview]
Message-ID: <5c10567d-0092-401b-9fd4-b0b85485dc44@intel.com> (raw)
In-Reply-To: <bc2e144788fd42fdf2a3b4920e3d9a5b79c175fa.1790867441.git.babu.moger@amd.com>
Hi Babu,
On 10/1/26 8:10 AM, 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).
>
Apologies for not being clear in previous review. This changelog has a
lot of repetition. Above two paragraphs are redundant, paragraph below is
sufficient by itself. One possible change would be to spell out PLZA in
the paragraph below. Spelling PLZA out may not be necessary since it is
spelled out in the patch self, so up to you.
> Add "plza" to the rdt= command-line parameter so PLZA exposure to resctrl
> can be enabled or disabled at boot. PLZA is exposed by default when
> supported; rdt=!plza suppresses it.
>
> Signed-off-by: Babu Moger <babu.moger@amd.com>
> ---
With first two paragraphs of changelog removed:
| Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reinette
next prev parent reply other threads:[~2026-10-15 14:17 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-01 15:10 [PATCH v6 00/18] x86,fs/resctrl: Add kernel-mode (e.g., PLZA) support to the resctrl subsystem Babu Moger
2026-10-01 15:10 ` [PATCH v6 01/18] x86/cpufeatures: Support Privilege Level Zero Association (PLZA) Babu Moger
2026-10-15 14:16 ` Reinette Chatre
2026-10-01 15:10 ` [PATCH v6 02/18] x86/resctrl: Add PLZA support to command-line options Babu Moger
2026-10-15 14:17 ` Reinette Chatre [this message]
2026-10-01 15:10 ` [PATCH v6 03/18] x86/resctrl: Add PLZA configuration definitions and data structures Babu Moger
2026-10-15 14:22 ` Reinette Chatre
2026-10-01 15:10 ` [PATCH v6 04/18] fs/resctrl: Introduce kernel mode enum Babu Moger
2026-10-15 14:44 ` Reinette Chatre
2026-10-01 15:10 ` [PATCH v6 05/18] x86,arm,fs/resctrl: Introduce architecture hook to program global kernel mode Babu Moger
2026-10-15 14:30 ` Reinette Chatre
2026-10-01 15:10 ` [PATCH v6 06/18] fs/resctrl: Introduce kernel mode states for resctrl Babu Moger
2026-10-15 14:37 ` Reinette Chatre
2026-10-01 15:10 ` [PATCH v6 07/18] fs/resctrl: Introduce resctrl_set_kmode_support() to register supported modes Babu Moger
2026-10-15 14:40 ` Reinette Chatre
2026-10-01 15:10 ` [PATCH v6 08/18] x86/resctrl: Register RESCTRL_GLOBAL_ENABLE_PER_CPU when PLZA is available Babu Moger
2026-10-15 14:46 ` Reinette Chatre
2026-10-01 15:10 ` [PATCH v6 09/18] fs/resctrl: Add interface to display kernel mode status Babu Moger
2026-10-15 15:16 ` Reinette Chatre
2026-10-01 15:10 ` [PATCH v6 10/18] fs/resctrl: Add support for hidden resource group files Babu Moger
2026-10-15 15:27 ` Reinette Chatre
2026-10-01 15:10 ` [PATCH v6 11/18] fs/resctrl: Introduce kmode_cpus/kmode_cpus_list per rdtgroup Babu Moger
2026-10-15 15:31 ` Reinette Chatre
2026-10-01 15:10 ` [PATCH v6 12/18] fs/resctrl: Add CPU hotplug support for kernel mode associations Babu Moger
2026-10-15 15:33 ` Reinette Chatre
2026-10-01 15:10 ` [PATCH v6 13/18] fs/resctrl: Deactivate kernel mode associations when a group is removed Babu Moger
2026-10-15 15:43 ` Reinette Chatre
2026-10-01 15:10 ` [PATCH v6 14/18] fs/resctrl: Control visibility of global per-CPU kernel mode group files Babu Moger
2026-10-15 15:46 ` Reinette Chatre
2026-10-01 15:10 ` [PATCH v6 15/18] fs/resctrl: Reject mode changes for groups backing kernel mode Babu Moger
2026-10-15 15:49 ` Reinette Chatre
2026-10-01 15:10 ` [PATCH v6 16/18] fs/resctrl: Add interface to modify kernel mode via info/kernel_mode Babu Moger
2026-10-15 16:07 ` Reinette Chatre
2026-10-01 15:10 ` [PATCH v6 17/18] fs/resctrl: Allow user space to write kmode_cpus/kmode_cpus_list Babu Moger
2026-10-01 15:10 ` [PATCH v6 18/18] fs/resctrl: Add kernel mode documentation and examples Babu Moger
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