linux-kernel - Re: [RFT PATCH v3 01/27] arm64: Cope with CPUs stuck in VHE mode

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Message-ID: <badbec31-0ddc-aae4-78cd-de3b6c3fef83@marcan.st>
Date:   Fri, 26 Mar 2021 16:54:24 +0900
From:   Hector Martin <marcan@...can.st>
To:     Marc Zyngier <maz@...nel.org>, Will Deacon <will@...nel.org>
Cc:     linux-arm-kernel@...ts.infradead.org,
        Rob Herring <robh@...nel.org>, Arnd Bergmann <arnd@...nel.org>,
        Olof Johansson <olof@...om.net>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Mark Kettenis <mark.kettenis@...all.nl>,
        Tony Lindgren <tony@...mide.com>,
        Mohamed Mediouni <mohamed.mediouni@...amail.com>,
        Stan Skowronek <stan@...ellium.com>,
        Alexander Graf <graf@...zon.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Mark Rutland <mark.rutland@....com>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jonathan Corbet <corbet@....net>,
        Catalin Marinas <catalin.marinas@....com>,
        Christoph Hellwig <hch@...radead.org>,
        "David S. Miller" <davem@...emloft.net>,
        devicetree@...r.kernel.org, linux-serial@...r.kernel.org,
        linux-doc@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFT PATCH v3 01/27] arm64: Cope with CPUs stuck in VHE mode

On 25/03/2021 05.00, Marc Zyngier wrote:
> I've come up with this on top of the original patch, spitting a
> warning when the right conditions are met. It's pretty ugly, but hey,
> so is the HW this runs on.

[...]

Folded into v4 and tested; works fine with `kvm-arm.mode=nvhe`, throwing 
the ugly WARN.

-- 
Hector Martin (marcan@...can.st)
Public Key: https://mrcn.st/pub