linux-kernel - Re: [PATCH v3 5/7] x86/resctrl: Display the RMID and COSID for resctrl groups

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <b0647255-ce4a-ff0e-016b-2868bb3d6d63@amd.com>
Date:   Wed, 22 Mar 2023 08:49:14 -0500
From:   "Moger, Babu" <babu.moger@....com>
To:     Stephane Eranian <eranian@...gle.com>
Cc:     corbet@....net, reinette.chatre@...el.com, tglx@...utronix.de,
        mingo@...hat.com, bp@...en8.de, fenghua.yu@...el.com,
        dave.hansen@...ux.intel.com, x86@...nel.org, hpa@...or.com,
        paulmck@...nel.org, akpm@...ux-foundation.org,
        quic_neeraju@...cinc.com, rdunlap@...radead.org,
        damien.lemoal@...nsource.wdc.com, songmuchun@...edance.com,
        peterz@...radead.org, jpoimboe@...nel.org, pbonzini@...hat.com,
        chang.seok.bae@...el.com, pawan.kumar.gupta@...ux.intel.com,
        jmattson@...gle.com, daniel.sneddon@...ux.intel.com,
        sandipan.das@....com, tony.luck@...el.com, james.morse@....com,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        bagasdotme@...il.com, christophe.leroy@...roup.eu,
        jarkko@...nel.org, adrian.hunter@...el.com, quic_jiles@...cinc.com,
        peternewman@...gle.com
Subject: Re: [PATCH v3 5/7] x86/resctrl: Display the RMID and COSID for
 resctrl groups

Hi Stephane,

On 3/20/23 15:59, Stephane Eranian wrote:
> On Thu, Mar 2, 2023 at 3:25 PM Babu Moger <babu.moger@....com> wrote:
>>
>> When a user creates a control or monitor group, the CLOSID or RMID
>> are not visible to the user. These are architecturally defined entities.
>> There is no harm in displaying these in resctrl groups. Sometimes it
>> can help to debug the issues.
>>
>> Add CLOSID and RMID to the control/monitor groups display in resctrl
>> interface.
>>
>> $cat /sys/fs/resctrl/clos1/closid
>> 1
>> $cat /sys/fs/resctrl/mon_groups/mon1/rmid
>> 3
>>
> Is the intent here to be x86 specific?
> How would that work on ARM?
> Shouldn't we be using more generic names such as monitoring_id,   control_id?

Yes. We can do that.
Thanks
Babu