REAL-TIME CODE AND DATA PROTECTION VIA CPU TRANSACTIONAL MEMORY SUPPORT

摘要

A technique allows for memory bounds checking for dynamically generated code by using transactional memory support in a processor. The memory bounds checking includes creating output code, identifying read-only memory regions in the output code and creating a map that is provided to a security monitoring thread. The security monitoring thread executes as a transaction and determines if a transactional conflict occurs to the read-only memory region during parallel execution of a monitored thread in the output code.

主权项

1. A machine readable medium, on which are stored instructions, comprising instructions that when executed cause a machine to:
create output code from input code; identify read-only memory regions to be accessed during execution of the output code; create a memory map for the read-only regions in shared memory; and monitor the read-only regions for a transactional conflict; wherein the read-only regions include one or more guard memory regions in the shared memory.