linux-kernel - Re: [PATCH 0/2] Add support for Gunyah Watchdog

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Message-ID: <20260113164744.6lwz6oox6pdlxn7z@hu-mojha-hyd.qualcomm.com>
Date: Tue, 13 Jan 2026 22:17:44 +0530
From: Mukesh Ojha <mukesh.ojha@....qualcomm.com>
To: Alexander Koskovich <AKoskovich@...me>
Cc: Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
        Pavan Kondeti <pavan.kondeti@....qualcomm.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        hrishabh.rajput@....qualcomm.com,
        Konrad Dybcio <konradybcio@...nel.org>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, linux-arm-msm@...r.kernel.org,
        linux-watchdog@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/2] Add support for Gunyah Watchdog

On Tue, Jan 13, 2026 at 04:09:13PM +0000, Alexander Koskovich wrote:
> On Tuesday, January 13th, 2026 at 10:59 AM, Mukesh Ojha <mukesh.ojha@....qualcomm.com> wrote:
> 
> > Are you trying to modify hyp dtb here ? how ?
> > 
> > blair is very old SoC and may not be running with Gunyah at all.
> 
> No, don't have the means to modify hyp dtb. Was just guessing at reasons why this issue occurs.
> 
> Was just using blair since it's the only secure boot off platform I had on hand so only one I could flash ABL on, but if it's using a different hypervisor than not really a relevant test then.
> 

Just to clarify you said, there is no issue if you just use dtb and not use dtbo ?
And issue happen when you start using a dtbo, even a dummy one, right ?

-Mukesh

> Alex

-- 
-Mukesh Ojha