From: Greg KH <gregkh@linuxfoundation.org>
To: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Cc: catalin.marinas@arm.com, will.deacon@arm.com,
linux-arm-kernel@lists.infradead.org, stable@vger.kernel.org
Subject: Re: [PATCH stable 4.9] arm64: Save and restore OSDLR_EL1 across suspend/resume
Date: Mon, 27 May 2019 15:56:00 +0200 [thread overview]
Message-ID: <20190527135600.GA7659@kroah.com> (raw)
In-Reply-To: <20190523152733.28069-1-jean-philippe.brucker@arm.com>
On Thu, May 23, 2019 at 04:27:33PM +0100, Jean-Philippe Brucker wrote:
> commit 827a108e354db633698f0b4a10c1ffd2b1f8d1d0 upstream
>
> When the CPU comes out of suspend, the firmware may have modified the OS
> Double Lock Register. Save it in an unused slot of cpu_suspend_ctx, and
> restore it on resume.
>
> Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
> Signed-off-by: Will Deacon <will.deacon@arm.com>
> ---
> Modified for v4.9 backport: 623b476fc815 and 6d99b68933fb are missing in
> v4.9, but the conflict is easily resolved.
>
> Tested on Juno with cpuidle.
Now queued up, thanks.
greg k-h
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WARNING: multiple messages have this Message-ID (diff)
From: Greg KH <gregkh@linuxfoundation.org>
To: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Cc: stable@vger.kernel.org, will.deacon@arm.com,
catalin.marinas@arm.com, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH stable 4.9] arm64: Save and restore OSDLR_EL1 across suspend/resume
Date: Mon, 27 May 2019 15:56:00 +0200 [thread overview]
Message-ID: <20190527135600.GA7659@kroah.com> (raw)
In-Reply-To: <20190523152733.28069-1-jean-philippe.brucker@arm.com>
On Thu, May 23, 2019 at 04:27:33PM +0100, Jean-Philippe Brucker wrote:
> commit 827a108e354db633698f0b4a10c1ffd2b1f8d1d0 upstream
>
> When the CPU comes out of suspend, the firmware may have modified the OS
> Double Lock Register. Save it in an unused slot of cpu_suspend_ctx, and
> restore it on resume.
>
> Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
> Signed-off-by: Will Deacon <will.deacon@arm.com>
> ---
> Modified for v4.9 backport: 623b476fc815 and 6d99b68933fb are missing in
> v4.9, but the conflict is easily resolved.
>
> Tested on Juno with cpuidle.
Now queued up, thanks.
greg k-h
next prev parent reply other threads:[~2019-05-27 13:56 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-17 12:25 FAILED: patch "[PATCH] arm64: Save and restore OSDLR_EL1 across suspend/resume" failed to apply to 4.9-stable tree gregkh
2019-05-23 15:27 ` [PATCH stable 4.9] arm64: Save and restore OSDLR_EL1 across suspend/resume Jean-Philippe Brucker
2019-05-23 15:27 ` Jean-Philippe Brucker
2019-05-27 13:56 ` Greg KH [this message]
2019-05-27 13:56 ` Greg KH
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