CONFIG_CAVIUM_ERRATUM_27456: Cavium erratum 27456: Broadcast TLBI instructions may cause icache corruption

General informations

The Linux kernel configuration item CONFIG_CAVIUM_ERRATUM_27456:

• prompt: Cavium erratum 27456: Broadcast TLBI instructions may cause icache corruption
• type: bool
• depends on: (none)
• defined in arch/arm64/Kconfig
• found in Linux kernels: 4.6–4.20, 5.0–5.19, 6.0–6.8, 6.9-rc+HEAD

Help text

On ThunderX T88 pass 1.x through 2.1 parts, broadcast TLBI instructions may cause the icache to become corrupted if it contains data for a non-current ASID. The fix is to invalidate the icache when changing the mm context.

If unsure, say Y.

Hardware

LKDDb

Raw data from LKDDb:

• (none)

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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