linux-kernel - Re: [PATCH] x86/split_lock: Enumerate split lock feature on Sapphire Rapids

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Message-ID: <20200716201325.GB66451@romley-ivt3.sc.intel.com>
Date:   Thu, 16 Jul 2020 13:13:26 -0700
From:   Fenghua Yu <fenghua.yu@...el.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Borislav Petkov <bp@...en8.de>, Ingo Molnar <mingo@...hat.com>,
        Tony Luck <tony.luck@...el.com>,
        Ashok Raj <ashok.raj@...el.com>,
        Ravi V Shankar <ravi.v.shankar@...el.com>,
        x86 <x86@...nel.org>, linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86/split_lock: Enumerate split lock feature on Sapphire
 Rapids

Hi, Peter,

On Thu, Jul 16, 2020 at 09:50:10PM +0200, Peter Zijlstra wrote:
> On Thu, Jul 16, 2020 at 12:37:00PM -0700, Fenghua Yu wrote:
> > Hi, Thomas, Boris, Ingo,
> > 
> > On Fri, Jun 26, 2020 at 02:55:34PM -0700, Fenghua Yu wrote:
> The only comment I have is that us needing it is ludicrous :/ What's the
> bloody point of having it 'enumerated' if you then still have to use FMS
> lists.
> 
> There's nowhere near enough cursing in the comment that goes with that
> list.

Tony answered Thomas' similar question at
https://lore.kernel.org/lkml/20200416223335.GA23759@agluck-desk2.amr.corp.intel.com/

Is that sufficient enough to answer your question?

Thanks.

-Fenghua