linux-kernel - Re: [PATCH] KVM: arm/arm64: show halt poll counters in debugfs

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Message-ID: <86lft3yhn1.wl-maz@kernel.org>
Date:   Tue, 29 Oct 2019 10:23:46 +0000
From:   Marc Zyngier <maz@...nel.org>
To:     Christian Borntraeger <borntraeger@...ibm.com>
Cc:     James Morse <james.morse@....com>,
        Julien Thierry <julien.thierry.kdev@...il.com>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        kvmarm@...ts.cs.columbia.edu, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] KVM: arm/arm64: show halt poll counters in debugfs

On Sun, 27 Oct 2019 08:19:50 +0000,
Christian Borntraeger <borntraeger@...ibm.com> wrote:

Hi Christian,

> ARM/ARM64 has counters halt_successful_poll, halt_attempted_poll,
> halt_poll_invalid, and halt_wakeup but never exposed those in debugfs.
> 
> Signed-off-by: Christian Borntraeger <borntraeger@...ibm.com>
> ---
> This patch is untested

Seems to do the right thing on arm64:

halt_attempted_poll:8106331
halt_poll_invalid:0
halt_successful_poll:1440219
halt_wakeup:21835894

Applied to -next.

Thanks,

	M.

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