linux-kernel - Re: [PATCH v4] arm64: Add override for MPAM

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Message-Id: <174886855062.2951814.2307723986328064576.b4-ty@kernel.org>
Date: Mon,  2 Jun 2025 14:42:05 +0100
From: Will Deacon <will@...nel.org>
To: James Morse <james.morse@....com>,
	Marc Zyngier <maz@...nel.org>,
	Anshuman Khandual <anshuman.khandual@....com>,
	Ben Horgan <ben.horgan@....com>,
	Xi Ruoyao <xry111@...111.site>
Cc: catalin.marinas@....com,
	kernel-team@...roid.com,
	Will Deacon <will@...nel.org>,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Shameer Kolothum <shameerali.kolothum.thodi@...wei.com>,
	Mingcong Bai <jeffbai@...c.io>,
	Shaopeng Tan <tan.shaopeng@...itsu.com>
Subject: Re: [PATCH v4] arm64: Add override for MPAM

On Mon, 02 Jun 2025 12:33:21 +0800, Xi Ruoyao wrote:
> As the message of the commit 09e6b306f3ba ("arm64: cpufeature: discover
> CPU support for MPAM") already states, if a buggy firmware fails to
> either enable MPAM or emulate the trap as if it were disabled, the
> kernel will just fail to boot.  While upgrading the firmware should be
> the best solution, we have some hardware of which the vendor have made
> no response 2 months after we requested a firmware update.  Allow
> overriding it so our devices don't become some e-waste.
> 
> [...]

Applied to arm64 (for-next/core), thanks!

[1/1] arm64: Add override for MPAM
      https://git.kernel.org/arm64/c/10f885d63a0e

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev