arm64: errata: Add QCOM_KRYO_4XX_GOLD to the spectre_bhb_k24_list

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commit ed1ce84124 upstream.

Qualcomm Kryo 400-series Gold cores have a derivative of an ARM Cortex
A76 in them. Since A76 needs Spectre mitigation via looping then the
Kyro 400-series Gold cores also need Spectre mitigation via looping.

Qualcomm has confirmed that the proper "k" value for Kryo 400-series
Gold cores is 24.

Fixes: 558c303c97 ("arm64: Mitigate spectre style branch history side channels")
Cc: stable@vger.kernel.org
Cc: Scott Bauer <sbauer@quicinc.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Trilok Soni <quic_tsoni@quicinc.com>
Link: https://lore.kernel.org/r/20250107120555.v4.1.Ie4ef54abe02e7eb0eee50f830575719bf23bda48@changeid
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Douglas Anderson 2025-01-07 12:05:58 -08:00 • committed by Greg Kroah-Hartman

parent 2ab5389f9d

commit e03cc3e607

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arch/arm64/kernel/proton-pack.c

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