From: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
To: speck@linutronix.de
Subject: [MODERATED] Re: [PATCH v4 04/10] TAAv4 4
Date: Mon, 23 Sep 2019 15:25:53 -0700 [thread overview]
Message-ID: <20190923222553.GA2473@guptapadev.amr> (raw)
In-Reply-To: <20190923191312.GB161280@kroah.com>
On Mon, Sep 23, 2019 at 09:13:12PM +0200, speck for Greg KH wrote:
> > >
> > > $ ls /sys/devices/cpu/
> > > allow_tsx_force_abort format power type
> > > caps freeze_on_smi rdpmc uevent
> > > events perf_event_mux_interval_ms subsystem
> > >
> > > Oh look, a tsx-specific cpu sysfs file on my laptop...
> >
> > Yes, but these are PMU attributes.
> > https://elixir.bootlin.com/linux/v5.3-rc8/source/arch/x86/events/core.c#L2211
> > https://elixir.bootlin.com/linux/v5.3-rc8/source/arch/x86/events/core.c#L1831
>
> Ick, ok, then no, you are back to putting it in /sys/devices/system/cpu/
> then.
>
> But that "feels" wrong given there really isn't anything else in that
> directory for cpu features like this, they are all buried in the
> individual cpuX directories, right?
>
> Is there any other cpu feature you can turn on/off like this today in
> the system that is controlled in sysfs? If so, where is it at?
I don't know if it counts, but there is one for turning SMT on/off.
$ echo off > /sys/devices/system/cpu/smt/control
Thanks,
Pawan
next prev parent reply other threads:[~2019-09-23 22:31 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1567543894.git.pawan.kumar.gupta@linux.intel.com>
2019-09-23 12:47 ` [MODERATED] Re: [PATCH v4 01/10] TAAv4 1 Borislav Petkov
[not found] ` <20190904060028.GD7212@kroah.com>
[not found] ` <20190906072835.GD13480@guptapadev.amr>
[not found] ` <20190906092727.GA16843@kroah.com>
[not found] ` <20190910184223.GA7543@guptapadev.amr>
[not found] ` <20190910223334.GA21301@kroah.com>
[not found] ` <20190910233449.GA10041@agluck-desk2.amr.corp.intel.com>
2019-09-23 19:10 ` [MODERATED] Re: [PATCH v4 04/10] TAAv4 4 Greg KH
[not found] ` <20190911023223.GA8305@guptapadev.amr>
2019-09-23 19:13 ` Greg KH
2019-09-23 22:25 ` Pawan Gupta [this message]
2019-09-24 5:04 ` Greg KH
2019-09-24 10:48 ` Jiri Kosina
2019-09-24 13:31 ` Greg KH
2019-09-24 13:38 ` Jiri Kosina
2019-09-24 13:47 ` Greg KH
2019-09-24 23:25 ` Pawan Gupta
2019-09-27 7:01 ` Greg KH
2019-09-25 21:10 ` [MODERATED] Re: [PATCH v4 06/10] TAAv4 6 Kanth Ghatraju
2019-09-25 21:11 ` [MODERATED] [AUTOREPLY] [AUTOREPLY] Automatic reply: " Hatle, Mark
2019-09-26 1:15 ` [MODERATED] " Pawan Gupta
[not found] ` <20190904055711.GC7212@kroah.com>
[not found] ` <nycvar.YFH.7.76.1909040759580.31470@cbobk.fhfr.pm>
[not found] ` <20190904061155.GI7212@kroah.com>
[not found] ` <20190904075846.GD1321@guptapadev.amr>
[not found] ` <20190904084306.GA4925@kroah.com>
[not found] ` <20190904112758.GP3838@dhcp22.suse.cz>
2019-09-25 22:05 ` [MODERATED] Re: ***UNCHECKED*** Re: [PATCH v4 03/10] TAAv4 3 Josh Poimboeuf
2019-10-01 0:20 ` [MODERATED] " Pawan Gupta
2019-10-02 14:55 ` Borislav Petkov
2019-10-05 5:16 ` Pawan Gupta
2019-10-08 2:59 ` Josh Poimboeuf
2019-10-08 6:15 ` Pawan Gupta
2019-10-08 18:06 ` Dave Hansen
2019-10-08 18:36 ` [MODERATED] Re: ***UNCHECKED*** " Jiri Kosina
[not found] ` <20190904055406.GA7212@kroah.com>
[not found] ` <20190904074326.GB1321@guptapadev.amr>
[not found] ` <bfe6f7e0-22db-ce4d-ac3a-875482b43489@intel.com>
2019-09-25 22:13 ` [MODERATED] Re: [PATCH v4 02/10] TAAv4 2 Josh Poimboeuf
2019-09-26 0:46 ` Pawan Gupta
2019-09-25 22:30 ` Josh Poimboeuf
2019-09-30 23:26 ` Pawan Gupta
2019-09-30 23:32 ` [MODERATED] [AUTOREPLY] [MODERATED] [AUTOREPLY] Automatic reply: " James, Hengameh M
[not found] ` <5b6df5ee-a5b7-c281-de29-af6544b8abb6@intel.com>
[not found] ` <20190906074645.GE13480@guptapadev.amr>
2019-09-25 22:48 ` [MODERATED] Re: [PATCH v4 03/10] TAAv4 3 Josh Poimboeuf
2019-09-25 23:12 ` Dave Hansen
2019-09-25 23:22 ` Andrew Cooper
2019-09-26 1:13 ` Pawan Gupta
2019-09-26 2:34 ` Josh Poimboeuf
2019-09-26 7:15 ` Pawan Gupta
2019-09-26 13:54 ` Josh Poimboeuf
2019-09-26 17:57 ` Pawan Gupta
[not found] ` <d6fd9ad7-79f7-aab9-db31-a9a2ca03aa10@intel.com>
[not found] ` <20190906080828.GF13480@guptapadev.amr>
[not found] ` <00170736-0d97-4a48-2141-ffba4bb67199@intel.com>
2019-09-25 22:58 ` [MODERATED] Re: [PATCH v4 04/10] TAAv4 4 Josh Poimboeuf
2019-09-26 0:48 ` Pawan Gupta
2019-09-25 23:06 ` [MODERATED] Re: [PATCH v4 06/10] TAAv4 6 Josh Poimboeuf
2019-09-30 23:00 ` Pawan Gupta
2019-10-01 18:26 ` [MODERATED] Re: [PATCH v4 05/10] TAAv4 5 Pawan Gupta
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