arm64: errata: Add KRYO 2XX/3XX/4XX silver cores to Spectre BHB safe list

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commit 0c9fc6e652 upstream.

Qualcomm has confirmed that, much like Cortex A53 and A55, KRYO
2XX/3XX/4XX silver cores are unaffected by Spectre BHB. Add them to
the safe list.

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.v4.3.Iab8dbfb5c9b1e143e7a29f410bce5f9525a0ba32@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 12:06:00 -08:00 • committed by Greg Kroah-Hartman

parent 3b0f2526c8

commit 20c105f587

1 changed files with 3 additions and 0 deletions

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arch/arm64/kernel/proton-pack.c

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