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>
Cc: <x86@kernel.org>, <linux-kernel@vger.kernel.org>,
<patches@lists.linux.dev>
Subject: Re: [PATCH v8 24/32] x86/resctrl: Add energy/perf choices to rdt boot option
Date: Thu, 14 Aug 2025 14:51:57 -0700 [thread overview]
Message-ID: <bb85b3e9-d10c-4b6a-a02e-e67a439b5a29@intel.com> (raw)
In-Reply-To: <20250811181709.6241-25-tony.luck@intel.com>
Hi Tony,
On 8/11/25 11:16 AM, Tony Luck wrote:
> Legacy resctrl features are enumerated by X86_FEATURE_* flags. These
> may be overridden by quirks to disable features in the case of errata.
>
> Users can use kernel command line options to either disable a feature,
> or to force enable a feature that was disabled by a quirk.
>
> Provide similar functionality for hardware features that do not have an
> X86_FEATURE_* flag.
>
> Unlike other features that are tied to X86_FEATURE_* flags, these must be
> queried by name. Add rdt_is_feature_enabled() to check whether quirks
> or kernel command line have disabled a feature. Just like the legacy
> features the command line enable overrides quirk disable.
I am not able to parse the last sentence.
>
> Signed-off-by: Tony Luck <tony.luck@intel.com>
> ---
Reinette
next prev parent reply other threads:[~2025-08-14 21:52 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-11 18:16 [PATCH v8 00/32] x86,fs/resctrl telemetry monitoring Tony Luck
2025-08-11 18:16 ` [PATCH v8 01/32] x86,fs/resctrl: Consolidate monitor event descriptions Tony Luck
2025-08-11 18:16 ` [PATCH v8 02/32] x86,fs/resctrl: Replace architecture event enabled checks Tony Luck
2025-08-11 18:16 ` [PATCH v8 03/32] x86/resctrl: Remove 'rdt_mon_features' global variable Tony Luck
2025-08-11 18:16 ` [PATCH v8 04/32] x86,fs/resctrl: Prepare for more monitor events Tony Luck
2025-08-11 18:16 ` [PATCH v8 05/32] x86,fs/resctrl: Improve domain type checking Tony Luck
2025-08-14 3:57 ` Reinette Chatre
2025-08-11 18:16 ` [PATCH v8 06/32] x86/resctrl: Move L3 initialization into new helper function Tony Luck
2025-08-14 3:58 ` Reinette Chatre
2025-08-11 18:16 ` [PATCH v8 07/32] x86,fs/resctrl: Refactor domain_remove_cpu_mon() ready for new domain types Tony Luck
2025-08-14 3:59 ` Reinette Chatre
2025-08-11 18:16 ` [PATCH v8 08/32] x86/resctrl: Clean up domain_remove_cpu_ctrl() Tony Luck
2025-08-14 3:59 ` Reinette Chatre
2025-08-11 18:16 ` [PATCH v8 09/32] x86,fs/resctrl: Use struct rdt_domain_hdr instead of struct rdt_mon_domain Tony Luck
2025-08-14 4:06 ` Reinette Chatre
2025-08-11 18:16 ` [PATCH v8 10/32] x86,fs/resctrl: Rename struct rdt_mon_domain and rdt_hw_mon_domain Tony Luck
2025-08-14 4:09 ` Reinette Chatre
2025-08-11 18:16 ` [PATCH v8 11/32] x86,fs/resctrl: Rename some L3 specific functions Tony Luck
2025-08-14 4:10 ` Reinette Chatre
2025-08-11 18:16 ` [PATCH v8 12/32] fs/resctrl: Make event details accessible to functions when reading events Tony Luck
2025-08-14 4:11 ` Reinette Chatre
2025-08-11 18:16 ` [PATCH v8 13/32] x86,fs/resctrl: Handle events that can be read from any CPU Tony Luck
2025-08-14 4:12 ` Reinette Chatre
2025-08-11 18:16 ` [PATCH v8 14/32] x86,fs/resctrl: Support binary fixed point event counters Tony Luck
2025-08-14 4:13 ` Reinette Chatre
2025-08-11 18:16 ` [PATCH v8 15/32] x86,fs/resctrl: Add an architectural hook called for each mount Tony Luck
2025-08-14 21:37 ` Reinette Chatre
2025-08-11 18:16 ` [PATCH v8 16/32] x86,fs/resctrl: Add and initialize rdt_resource for package scope monitor Tony Luck
2025-08-14 21:38 ` Reinette Chatre
2025-08-11 18:16 ` [PATCH v8 17/32] x86/resctrl: Discover hardware telemetry events Tony Luck
2025-08-14 21:39 ` Reinette Chatre
2025-08-11 18:16 ` [PATCH v8 18/32] x86/resctrl: Count valid telemetry aggregators per package Tony Luck
2025-08-14 21:41 ` Reinette Chatre
2025-08-11 18:16 ` [PATCH v8 19/32] x86/resctrl: Complete telemetry event enumeration Tony Luck
2025-08-14 21:42 ` Reinette Chatre
2025-08-11 18:16 ` [PATCH v8 20/32] x86,fs/resctrl: Fill in details of events for guid 0x26696143 and 0x26557651 Tony Luck
2025-08-14 21:42 ` Reinette Chatre
2025-08-11 18:16 ` [PATCH v8 21/32] x86,fs/resctrl: Add architectural event pointer Tony Luck
2025-08-14 21:43 ` Reinette Chatre
2025-08-11 18:16 ` [PATCH v8 22/32] x86/resctrl: Read telemetry events Tony Luck
2025-08-14 21:50 ` Reinette Chatre
2025-08-11 18:16 ` [PATCH v8 23/32] x86/resctrl: Handle domain creation/deletion for RDT_RESOURCE_PERF_PKG Tony Luck
2025-08-14 21:51 ` Reinette Chatre
2025-08-11 18:16 ` [PATCH v8 24/32] x86/resctrl: Add energy/perf choices to rdt boot option Tony Luck
2025-08-14 21:51 ` Reinette Chatre [this message]
2025-08-11 18:16 ` [PATCH v8 25/32] x86/resctrl: Handle number of RMIDs supported by telemetry resources Tony Luck
2025-08-14 21:54 ` Reinette Chatre
2025-08-11 18:17 ` [PATCH v8 26/32] fs/resctrl: Move allocation/free of closid_num_dirty_rmid Tony Luck
2025-08-14 21:54 ` Reinette Chatre
2025-08-11 18:17 ` [PATCH v8 27/32] fs,x86/resctrl: Compute number of RMIDs as minimum across resources Tony Luck
2025-08-14 21:55 ` Reinette Chatre
2025-08-11 18:17 ` [PATCH v8 28/32] fs/resctrl: Move RMID initialization to first mount Tony Luck
2025-08-14 21:58 ` Reinette Chatre
2025-08-11 18:17 ` [PATCH v8 29/32] x86/resctrl: Enable RDT_RESOURCE_PERF_PKG Tony Luck
2025-08-14 21:57 ` Reinette Chatre
2025-08-11 18:17 ` [PATCH v8 30/32] fs/resctrl: Provide interface to create architecture specific debugfs area Tony Luck
2025-08-14 21:57 ` Reinette Chatre
2025-08-11 18:17 ` [PATCH v8 31/32] x86/resctrl: Add debugfs files to show telemetry aggregator status Tony Luck
2025-08-14 21:59 ` Reinette Chatre
2025-08-11 18:17 ` [PATCH v8 32/32] x86,fs/resctrl: Update Documentation for package events Tony Luck
2025-08-14 22:01 ` Reinette Chatre
2025-08-14 3:55 ` [PATCH v8 00/32] x86,fs/resctrl telemetry monitoring Reinette Chatre
2025-08-14 15:44 ` Luck, Tony
2025-08-14 16:14 ` Reinette Chatre
2025-08-14 23:57 ` Reinette Chatre
2025-08-15 15:47 ` Luck, Tony
2025-08-25 22:20 ` Luck, Tony
2025-08-28 16:45 ` Reinette Chatre
2025-08-28 20:14 ` Luck, Tony
2025-08-28 22:05 ` Reinette Chatre
2025-08-28 23:49 ` Luck, Tony
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