CONFIG_QCOM_FALKOR_ERRATUM_1003: Falkor E1003: Incorrect translation due to ASID change

General informations

The Linux kernel configuration item CONFIG_QCOM_FALKOR_ERRATUM_1003:

• prompt: Falkor E1003: Incorrect translation due to ASID change
• type: bool
• depends on: (none)
• defined in arch/arm64/Kconfig
• found in Linux kernels: 4.11–4.20, 5.0–5.19, 6.0–6.8, 6.9-rc+HEAD

Help text

On Falkor v1, an incorrect ASID may be cached in the TLB when ASID and BADDR are changed together in TTBRx_EL1. Since we keep the ASID in TTBR1_EL1, this situation only occurs in the entry trampoline and then only for entries in the walk cache, since the leaf translation is unchanged. Work around the erratum by invalidating the walk cache entries for the trampoline before entering the kernel proper.

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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