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From: Drew Fustini <fustini@kernel.org>
To: Reinette Chatre <reinette.chatre@intel.com>
Cc: Ben Horgan <ben.horgan@arm.com>, Tony Luck <tony.luck@intel.com>,
	James Morse <james.morse@arm.com>,
	Dave Martin <Dave.Martin@arm.com>,
	Babu Moger <babu.moger@amd.com>, Fenghua Yu <fenghuay@nvidia.com>,
	Chen Yu <yu.c.chen@intel.com>, Borislav Petkov <bp@alien8.de>,
	Thomas Gleixner <tglx@linutronix.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	Peter Newman <peternewman@google.com>,
	"x86@kernel.org" <x86@kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [RFC] mpam,x86,fs/resctrl: Generic schema description Proof of Concept
Date: Tue, 9 Jun 2026 21:31:04 -0700	[thread overview]
Message-ID: <aijoiKwzPqBHltgY@thelio> (raw)
In-Reply-To: <a84af037-6439-4362-be07-d45143e06309@intel.com>

On Tue, Jun 09, 2026 at 08:28:09AM -0700, Reinette Chatre wrote:
> - I see that the default of zero for the MIN control can be appropriate. For the 
>   usage of resctrl_get_default_ctrlval() when creating a new control group this
>   could be ok as a general setting since the user is expected to, after creating
>   the resource group, adjust control values as required by the workloads it will
>   contain. I need to make sure about this from all architectures and if 0 is not
>   ok then we could use Drew's suggestion of architecture providing a specific reset
>   value.

Unfortunately, 0 will not work for the default value for Reserved
bandwidth Blocks (Rbwb) in RISC-V CBQRI as it is required by the spec to
be at least 1.

Thanks,
Drew

  parent reply	other threads:[~2026-06-10  4:31 UTC|newest]

Thread overview: 66+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-29 18:06 [RFC] mpam,x86,fs/resctrl: Generic schema description Proof of Concept Reinette Chatre
2026-06-02 20:23 ` Babu Moger
2026-06-02 22:56   ` Reinette Chatre
2026-06-03  1:14     ` Moger, Babu
2026-06-03  3:55       ` Reinette Chatre
2026-06-03 14:40         ` Babu Moger
2026-06-02 23:32 ` Chen, Yu C
2026-06-03  3:45   ` Reinette Chatre
2026-06-03 11:53     ` Chen, Yu C
2026-06-04 16:37       ` Reinette Chatre
2026-06-05 15:43         ` Chen, Yu C
2026-06-05 16:20           ` Reinette Chatre
2026-06-03 15:15 ` Ben Horgan
2026-06-03 19:34   ` Drew Fustini
2026-06-04 11:24     ` Ben Horgan
2026-06-04 17:38       ` Drew Fustini
2026-06-12  1:30         ` Shaopeng Tan (Fujitsu)
2026-06-17 15:29           ` Reinette Chatre
2026-06-19  1:42             ` Shaopeng Tan (Fujitsu)
2026-06-22 16:10               ` Reinette Chatre
2026-06-23  5:04                 ` Shaopeng Tan (Fujitsu)
2026-06-04 21:05     ` Reinette Chatre
2026-06-05 19:35       ` Drew Fustini
2026-06-06  5:10         ` Drew Fustini
2026-06-06  5:23           ` Drew Fustini
2026-06-04 17:43   ` Reinette Chatre
2026-06-05 14:53     ` Ben Horgan
2026-06-05 15:39       ` Reinette Chatre
2026-06-05 16:37         ` Ben Horgan
2026-06-08 16:16           ` Reinette Chatre
2026-06-09 10:10             ` Ben Horgan
2026-06-09 15:28               ` Reinette Chatre
2026-06-09 16:37                 ` Ben Horgan
2026-06-09 17:41                   ` Reinette Chatre
2026-06-10  7:09                     ` Chen, Yu C
2026-06-10 14:27                       ` Chen, Yu C
2026-06-10 16:13                         ` Reinette Chatre
2026-06-10 17:57                           ` Chen, Yu C
2026-06-10 18:10                             ` Reinette Chatre
2026-06-10 15:59                       ` Reinette Chatre
2026-06-10 18:05                         ` Chen, Yu C
2026-06-11  3:26                         ` Chen, Yu C
2026-06-11 15:45                           ` Reinette Chatre
2026-06-26 15:46                             ` Chen, Yu C
2026-07-02 14:27                               ` Ben Horgan
2026-07-03  9:01                                 ` Chen, Yu C
2026-06-10  4:31                 ` Drew Fustini [this message]
2026-06-10 15:14                   ` Reinette Chatre
2026-06-03 18:46 ` Luck, Tony
2026-06-04 10:02   ` Ben Horgan
2026-06-04 21:42   ` Reinette Chatre
2026-07-08 12:56     ` Chen, Yu C
2026-06-03 22:14 ` Drew Fustini
2026-06-04 21:47   ` Reinette Chatre
2026-06-05 19:48     ` Drew Fustini
2026-06-15 21:05 ` Moger, Babu
2026-06-17 17:18   ` Reinette Chatre
2026-06-17 20:29     ` Babu Moger
2026-06-24 19:08 ` Fenghua Yu
2026-06-24 22:22   ` Reinette Chatre
2026-06-25  1:26     ` Fenghua Yu
2026-06-25 15:43       ` Reinette Chatre
2026-07-10 20:59         ` Fenghua Yu
2026-07-02 13:37       ` Ben Horgan
2026-07-02 15:16         ` Fenghua Yu
2026-07-03 13:42           ` Ben Horgan

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