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Wed, 28 Oct 2026 08:30:47 +0000 Date: Wed, 28 Oct 2026 08:30:46 +0000 Message-ID: <86pkwuxm4p.wl-maz@kernel.org> From: Marc Zyngier To: Tim Pambor Cc: Frank.Li@nxp.com, afaerber@suse.de, alim.akhtar@samsung.com, andersson@kernel.org, angelogioacchino.delregno@collabora.com, baolin.wang@linux.alibaba.com, bst-upstream@bstai.top, catalin.marinas@arm.com, conor+dt@kernel.org, daniel.lezcano@kernel.org, devicetree@vger.kernel.org, dinguyen@kernel.org, eleanor.lin@realtek.com, festevam@gmail.com, gordon.ge@bst.ai, guohanjun@huawei.com, heiko@sntech.de, ivo.ivanov.ivanov1@gmail.com, jbrunet@baylibre.com, jernej.skrabec@gmail.com, jesper.nilsson@axis.com, jonathanh@nvidia.com, kernel@pengutronix.de, khilman@baylibre.com, konradybcio@kernel.org, krzk+dt@kernel.org, lars.persson@axis.com, linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, lpieralisi@kernel.org, mark.rutland@arm.com, martin.blumenstingl@googlemail.com, matthias.bgg@gmail.com, michal.simek@amd.com, neil.armstrong@linaro.org, orsonzhai@gmail.com, rafael@kernel.org, robh@kernel.org, s.hauer@pengutronix.de, samuel@sholland.org, shawn.lin@rock-chips.com, sudeep.holla@kernel.org, tglx@kernel.org, thierry.reding@kernel.org, wens@kernel.org, will@kernel.org Subject: Re: [PATCH v3 11/17] arm64: dts: mediatek: Add EL2 virtual timer interrupt In-Reply-To: <20261028081716.75598-1-timpambor@gmail.com> References: <20260523140242.586031-12-maz@kernel.org> <20261028081716.75598-1-timpambor@gmail.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/30.1 (aarch64-unknown-linux-gnu) MULE/6.0 (HANACHIRUSATO) X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; 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SAEximRunCond expanded to false On Wed, 28 Oct 2026 08:17:16 +0000, Tim Pambor wrote: > > On Sat, 23 May 2026 15:02:36 +0100, Marc Zyngier wrote: > > The ARMv8.1+ based CPUs used in a number of Mediatek SoCs are missing > > the EL2 virtual timer interrupt. Add it. > > This patch doesn't seem to have been applied along with the rest of > the series. That's the SoC maintainers' responsibility. I only look after the driver code, and rely on people spotting the warning! ;-) The fact that this has been there for two kernel releases show you how deeply these maintainers care. > After updating to v7.2.11 on an MT8195 board I see: > > arch_timer: [Firmware Bug]: VHE-capable CPU without EL2 virtual timer interrupt > > With this patch applied, the warning is gone and the EL2 virtual timer > is used as expected: > > arch_timer: cp15 timer running at 13.00MHz (hyp-virt). > > Reviewed-by: Tim Pambor > Tested-by: Tim Pambor Thanks! M. -- Without deviation from the norm, progress is not possible.