tjh.dev / kernel
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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>

authored by

Jinqian Yang and committed by
Will Deacon e3baa5d4 8f0b4cce

+1
+1
arch/arm64/kernel/proton-pack.c
··· 887 887 MIDR_ALL_VERSIONS(MIDR_CORTEX_X2), 888 888 MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2), 889 889 MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V1), 890 + MIDR_ALL_VERSIONS(MIDR_HISI_TSV110), 890 891 {}, 891 892 }; 892 893 static const struct midr_range spectre_bhb_k24_list[] = {