arm64: Add support for TSV110 Spectre-BHB mitigation

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[ Upstream commit e3baa5d4b3 ]

The TSV110 processor is vulnerable to the Spectre-BHB (Branch History
Buffer) attack, which can be exploited to leak information through
branch prediction side channels. This commit adds the MIDR of TSV110
to the list for software mitigation.

Signed-off-by: Jinqian Yang <yangjinqian1@huawei.com>
Reviewed-by: Zenghui Yu <zenghui.yu@linux.dev>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Jinqian Yang 2025-12-27 17:24:48 +08:00 • committed by Sasha Levin

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commit 5dbe1f1435

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arch/arm64/kernel/proton-pack.c

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