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CONFIG_QCOM_FALKOR_ERRATUM_1003: Falkor E1003: Incorrect translation due to ASID change

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The Linux kernel configuration item CONFIG_QCOM_FALKOR_ERRATUM_1003:

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.



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