From: Marc Zyngier <maz@kernel.org>
To: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: yee.lee@mediatek.com, linux-kernel@vger.kernel.org,
nicholas.Tang@mediatek.com, Kuan-Ying.lee@mediatek.com,
chinwen.chang@mediatek.com,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
David Brazdil <dbrazdil@google.com>,
Mark Rutland <mark.rutland@arm.com>,
Ionela Voinescu <ionela.voinescu@arm.com>,
Amit Daniel Kachhap <amit.kachhap@arm.com>,
Quentin Perret <qperret@google.com>,
Andrew Scull <ascull@google.com>,
James Morse <james.morse@arm.com>, Fuad Tabba <tabba@google.com>,
"moderated list:ARM64 PORT (AARCH64 ARCHITECTURE)"
<linux-arm-kernel@lists.infradead.org>,
"moderated list:ARM/Mediatek SoC support"
<linux-mediatek@lists.infradead.org>
Subject: Re: [PATCH 1/1] arm64/cpufeature: Add option to disable mte support
Date: Wed, 28 Jul 2021 11:05:45 +0100 [thread overview]
Message-ID: <87zgu6da86.wl-maz@kernel.org> (raw)
In-Reply-To: <88cded87-bc06-4aeb-4996-76a5faa58afe@arm.com>
On Wed, 28 Jul 2021 10:59:24 +0100,
Suzuki K Poulose <suzuki.poulose@arm.com> wrote:
>
> On 28/07/2021 10:42, yee.lee@mediatek.com wrote:
> > From: Yee Lee <yee.lee@mediatek.com>
> >
> > Add a static key to exapnd the logic of system_supports_mte().
> > This function controls mte enablement in both EL1 and EL0.
> >
> > The static key, "arm64_mte_support" is default true and can
> > be disabled via the early_param.
>
> Please could we use the id-reg override mechanism and give it
> an alias ?
>
> See :
>
> arch/arm64/kernel/idreg-override.c
>
> And could add something along the lines of :
>
> arm64.nomte
Damn, you beat me to it! :D
M.
--
Without deviation from the norm, progress is not possible.
_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek
WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <maz@kernel.org>
To: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: yee.lee@mediatek.com, linux-kernel@vger.kernel.org,
nicholas.Tang@mediatek.com, Kuan-Ying.lee@mediatek.com,
chinwen.chang@mediatek.com,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
David Brazdil <dbrazdil@google.com>,
Mark Rutland <mark.rutland@arm.com>,
Ionela Voinescu <ionela.voinescu@arm.com>,
Amit Daniel Kachhap <amit.kachhap@arm.com>,
Quentin Perret <qperret@google.com>,
Andrew Scull <ascull@google.com>,
James Morse <james.morse@arm.com>, Fuad Tabba <tabba@google.com>,
"moderated list:ARM64 PORT (AARCH64 ARCHITECTURE)"
<linux-arm-kernel@lists.infradead.org>,
"moderated list:ARM/Mediatek SoC support"
<linux-mediatek@lists.infradead.org>
Subject: Re: [PATCH 1/1] arm64/cpufeature: Add option to disable mte support
Date: Wed, 28 Jul 2021 11:05:45 +0100 [thread overview]
Message-ID: <87zgu6da86.wl-maz@kernel.org> (raw)
In-Reply-To: <88cded87-bc06-4aeb-4996-76a5faa58afe@arm.com>
On Wed, 28 Jul 2021 10:59:24 +0100,
Suzuki K Poulose <suzuki.poulose@arm.com> wrote:
>
> On 28/07/2021 10:42, yee.lee@mediatek.com wrote:
> > From: Yee Lee <yee.lee@mediatek.com>
> >
> > Add a static key to exapnd the logic of system_supports_mte().
> > This function controls mte enablement in both EL1 and EL0.
> >
> > The static key, "arm64_mte_support" is default true and can
> > be disabled via the early_param.
>
> Please could we use the id-reg override mechanism and give it
> an alias ?
>
> See :
>
> arch/arm64/kernel/idreg-override.c
>
> And could add something along the lines of :
>
> arm64.nomte
Damn, you beat me to it! :D
M.
--
Without deviation from the norm, progress is not possible.
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <maz@kernel.org>
To: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: yee.lee@mediatek.com, linux-kernel@vger.kernel.org,
nicholas.Tang@mediatek.com, Kuan-Ying.lee@mediatek.com,
chinwen.chang@mediatek.com,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
David Brazdil <dbrazdil@google.com>,
Mark Rutland <mark.rutland@arm.com>,
Ionela Voinescu <ionela.voinescu@arm.com>,
Amit Daniel Kachhap <amit.kachhap@arm.com>,
Quentin Perret <qperret@google.com>,
Andrew Scull <ascull@google.com>,
James Morse <james.morse@arm.com>, Fuad Tabba <tabba@google.com>,
"moderated list:ARM64 PORT (AARCH64 ARCHITECTURE)"
<linux-arm-kernel@lists.infradead.org>,
"moderated list:ARM/Mediatek SoC support"
<linux-mediatek@lists.infradead.org>
Subject: Re: [PATCH 1/1] arm64/cpufeature: Add option to disable mte support
Date: Wed, 28 Jul 2021 11:05:45 +0100 [thread overview]
Message-ID: <87zgu6da86.wl-maz@kernel.org> (raw)
In-Reply-To: <88cded87-bc06-4aeb-4996-76a5faa58afe@arm.com>
On Wed, 28 Jul 2021 10:59:24 +0100,
Suzuki K Poulose <suzuki.poulose@arm.com> wrote:
>
> On 28/07/2021 10:42, yee.lee@mediatek.com wrote:
> > From: Yee Lee <yee.lee@mediatek.com>
> >
> > Add a static key to exapnd the logic of system_supports_mte().
> > This function controls mte enablement in both EL1 and EL0.
> >
> > The static key, "arm64_mte_support" is default true and can
> > be disabled via the early_param.
>
> Please could we use the id-reg override mechanism and give it
> an alias ?
>
> See :
>
> arch/arm64/kernel/idreg-override.c
>
> And could add something along the lines of :
>
> arm64.nomte
Damn, you beat me to it! :D
M.
--
Without deviation from the norm, progress is not possible.
next prev parent reply other threads:[~2021-07-28 10:06 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-28 9:42 [PATCH 0/1] arm64/cpufeature: Add an option for mte support yee.lee
2021-07-28 9:42 ` yee.lee
2021-07-28 9:42 ` yee.lee
2021-07-28 9:42 ` [PATCH 1/1] arm64/cpufeature: Add option to disable " yee.lee
2021-07-28 9:42 ` yee.lee
2021-07-28 9:42 ` yee.lee
2021-07-28 9:59 ` Suzuki K Poulose
2021-07-28 9:59 ` Suzuki K Poulose
2021-07-28 9:59 ` Suzuki K Poulose
2021-07-28 10:05 ` Marc Zyngier [this message]
2021-07-28 10:05 ` Marc Zyngier
2021-07-28 10:05 ` Marc Zyngier
2021-07-28 10:04 ` Marc Zyngier
2021-07-28 10:04 ` Marc Zyngier
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