linux-kernel - Re: [PATCH] arm64: tegra: Fix GIC400 missing GICH/GICV register regions

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Date:   Tue, 10 Nov 2020 18:39:11 +0100
From:   Thierry Reding <thierry.reding@...il.com>
To:     Marc Zyngier <maz@...nel.org>
Cc:     devicetree@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Jonathan Hunter <jonathanh@...dia.com>,
        Nagarjuna Kristam <nkristam@...dia.com>,
        Sowjanya Komatineni <skomatineni@...dia.com>,
        kernel-team@...roid.com
Subject: Re: [PATCH] arm64: tegra: Fix GIC400 missing GICH/GICV register
 regions

On Mon, Oct 05, 2020 at 02:32:56PM +0100, Marc Zyngier wrote:
> GIC400 has full support for virtualization, and yet the tegra186
> DT doesn't expose the GICH/GICV regions (despite exposing the
> maintenance interrupt that only makes sense for virtualization).
> 
> Add the missing regions, based on the hunch that the HW doesn't
> use the CPU build-in interfaces, but instead the external ones
> provided by the GIC. KVM's virtual GIC now works with this change.
> 
> Signed-off-by: Marc Zyngier <maz@...nel.org>
> ---
>  arch/arm64/boot/dts/nvidia/tegra186.dtsi | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)

Applied, thanks.

Thierry

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