ARM errata: A12: sequence of VMOV to core registers might lead to a dead lock
configname: CONFIG_ARM_ERRATA_821420
Linux Kernel Configuration
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System Type
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ARM errata: A12: sequence of VMOV to core registers might lead to a dead lock
This option enables the workaround for the 821420 Cortex-A12
(all revs) erratum. In very rare timing conditions, a sequence
of VMOV to Core registers instructions, for which the second
one is in the shadow of a branch or abort, can lead to a
deadlock when the VMOV instructions are issued out-of-order.
(all revs) erratum. In very rare timing conditions, a sequence
of VMOV to Core registers instructions, for which the second
one is in the shadow of a branch or abort, can lead to a
deadlock when the VMOV instructions are issued out-of-order.