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From: Reinette Chatre <reinette.chatre@intel.com>
To: Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghuay@nvidia.com>,
	"Maciej Wieczor-Retman" <maciej.wieczor-retman@intel.com>,
	Peter Newman <peternewman@google.com>,
	James Morse <james.morse@arm.com>,
	Babu Moger <babu.moger@amd.com>,
	Drew Fustini <dfustini@baylibre.com>,
	Dave Martin <Dave.Martin@arm.com>, Chen Yu <yu.c.chen@intel.com>,
	David E Box <david.e.box@intel.com>, <x86@kernel.org>
Cc: <linux-kernel@vger.kernel.org>, <patches@lists.linux.dev>
Subject: Re: [PATCH v4 2/7] x86/resctrl: Drop setting of event_group::force_off when insufficient RMIDs
Date: Fri, 3 Apr 2026 17:01:24 -0700	[thread overview]
Message-ID: <f509e705-3585-48e0-9fda-4ab2bd7b9ceb@intel.com> (raw)
In-Reply-To: <20260330214322.96686-3-tony.luck@intel.com>

Hi Tony,

On 3/30/26 2:43 PM, Tony Luck wrote:
> Setting the force_off flag does not matter when AET features are only
> enumerated once (on first mount).

Missing motivation here. Consider for example:
Enumerating AET features multiple times is needed because ... ?

> 
> In preparation for enumeration on every mount, drop this because it
> overrides user request with rdt= boot option to force enable a feature.

Missing answer to:
event_group::force_off is intended to reflect both the user and architecture's
opinion. This removes the architecture setting entirely. This is safe because ...

Missing:
Change definition of event_group::force_off.

Reinette

  reply	other threads:[~2026-04-04  0:01 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-30 21:43 [PATCH v4 0/7] Allow AET to use PMT/TPMI as loadable modules Tony Luck
2026-03-30 21:43 ` [PATCH v4 1/7] platform/x86/intel/pmt: Export PMT enumeration functions as GPL Tony Luck
2026-04-04  0:00   ` Reinette Chatre
2026-04-06 18:07     ` David Box
2026-04-08  5:07   ` Christoph Hellwig
2026-04-08 17:01     ` Luck, Tony
2026-04-09  5:41       ` Christoph Hellwig
2026-03-30 21:43 ` [PATCH v4 2/7] x86/resctrl: Drop setting of event_group::force_off when insufficient RMIDs Tony Luck
2026-04-04  0:01   ` Reinette Chatre [this message]
2026-03-30 21:43 ` [PATCH v4 3/7] fs/resctrl: Add interface to disable a monitor event Tony Luck
2026-04-04  0:03   ` Reinette Chatre
2026-04-06 18:35     ` Luck, Tony
2026-04-06 21:13       ` Reinette Chatre
2026-04-07 18:40         ` Luck, Tony
2026-04-07 23:10           ` Reinette Chatre
2026-03-30 21:43 ` [PATCH v4 4/7] fs,x86/resctrl: Add architecture hooks for every mount/unmount Tony Luck
2026-04-04  0:52   ` Reinette Chatre
2026-04-06 20:35     ` Luck, Tony
2026-04-06 21:16       ` Reinette Chatre
2026-04-09 20:35         ` Luck, Tony
2026-04-10 15:16           ` Reinette Chatre
2026-04-10 18:59             ` Luck, Tony
2026-04-10 21:21               ` Reinette Chatre
2026-04-10 23:03                 ` Luck, Tony
2026-03-30 21:43 ` [PATCH v4 5/7] x86/resctrl: Resolve PMT and TPMI symbols at runtime Tony Luck
2026-04-04  0:56   ` Reinette Chatre
2026-04-07 18:13     ` Luck, Tony
2026-04-07 18:40       ` Reinette Chatre
2026-04-07 20:33         ` Luck, Tony
2026-03-30 21:43 ` [PATCH v4 6/7] x86/resctrl: Delete intel_aet_exit() Tony Luck
2026-03-30 21:43 ` [PATCH v4 7/7] x86/resctrl: Downgrade dependency of AET on INTEL_PMT Tony Luck

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