System for binary translation version protection
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United States of America Patent
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Dec 25, 2018
Grant Date -
Dec 29, 2016
app pub date -
Jun 26, 2015
filing date -
Jun 26, 2015
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present disclosure is directed to a system for binary translation version protection. Activity occurring in a device that may potentially cause native code to be altered may cause the device to prevent binary translations corresponding to the native code from being executed until a determination is made as to whether the binary translation needs to be regenerated. The native code may be stored in a memory page having an access permission that does not permit writes. Attempts to alter the native code would require the access permission of the memory page to be set to writable, which may cause a binary translation (BT) module to be notified of the potential change. The BT module may mark any binary translations corresponding to the native code as stale, and may cause a page permission control module to update memory pages including the binary translations to have an access permission of non-executable.
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