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Typical automotive persistence requirements :
(to be met by the entire system, i.e. from App to persistence system on Guest, through drivers, HV, to hardware)
1) Ability to write some specific data items, for which it is guaranteed to be stored (within reasonable and bounded time),
i.e. "Write Through mode" (seen from the perspective of the user space program in the guest) while the majority of data is written in "Cached mode"
(Optionally: Ability to do this using file system, i.e. mount something which guarantees this on a VFS path)
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