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From: Thomas Gleixner <tglx@linutronix.de>
To: Linda Knippers <linda.knippers@hp.com>
Cc: linux-kernel@vger.kernel.org, x86@kernel.org, mingo@redhat.com,
	hpa@zytor.com
Subject: Re: [PATCH] arch/x86/mm/srat: Print non-volatile flag in SRAT
Date: Tue, 1 Sep 2015 21:26:06 +0200 (CEST)	[thread overview]
Message-ID: <alpine.DEB.2.11.1509012125310.15006@nanos> (raw)
In-Reply-To: <55E5FB21.5050406@hp.com>

On Tue, 1 Sep 2015, Linda Knippers wrote:
> On 9/1/2015 3:17 PM, Thomas Gleixner wrote:
> > On Tue, 1 Sep 2015, Linda Knippers wrote:
> >> Nobody checks this flag but it would be interesting to know if it's being
> >> set on any platforms.
> > 
> > What you're omitting to explain, is WHY it would be interesting.
> 
> With the addition of NVDIMM support, a question came up as to whether
> NVDIMM ranges should be in the SRAT with this bit set.  I think the
> consensus was no because the ranges are in the NFIT with proximity
> domain information there.
> 
> ACPI is not clear on the meaning of this bit in the SRAT.
> If someone is setting it, we might want to ask them what they expect
> to happen with it.
> 
> Right now this bit is only printed if all the ACPI debug information is
> turned on.
> 
> Sorry, I should have explained more.

Indeed. And that explanation wants to be in the changelog. Care to resend?

Thanks,

	tglx

      reply	other threads:[~2015-09-01 19:26 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-01 16:21 Linda Knippers
2015-09-01 19:17 ` Thomas Gleixner
2015-09-01 19:23   ` Linda Knippers
2015-09-01 19:26     ` Thomas Gleixner [this message]

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