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Jinqian Yangwilldeacon
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arm64: Add support for TSV110 Spectre-BHB mitigation
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>
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arch/arm64/kernel/proton-pack.c

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@@ -887,6 +887,7 @@ static u8 spectre_bhb_loop_affected(void)
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MIDR_ALL_VERSIONS(MIDR_CORTEX_X2),
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MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
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MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V1),
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MIDR_ALL_VERSIONS(MIDR_HISI_TSV110),
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{},
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};
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static const struct midr_range spectre_bhb_k24_list[] = {

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