[PATCH v4] arm64: Add override for MPAM

[Marc Zyngier]

On Mon, 02 Jun 2025 05:33:21 +0100,
Xi Ruoyao <xry111 at xry111.site> 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.
> 
> Cc: James Morse <james.morse at arm.com>
> Cc: Marc Zyngier <maz at kernel.org>
> Cc: Will Deacon <will at kernel.org>
> Cc: Shameer Kolothum <shameerali.kolothum.thodi at huawei.com>
> Cc: Mingcong Bai <jeffbai at aosc.io>
> Cc: Shaopeng Tan <tan.shaopeng at fujitsu.com>
> Cc: Ben Horgan <ben.horgan at arm.com>
> Signed-off-by: Xi Ruoyao <xry111 at xry111.site>

Reviewed-by: Marc Zyngier <maz at kernel.org>

	M.

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