Post-Silicon and Runtime Verification for Modern Processors by Ilya Wagner, Valeria Bertacco

By Ilya Wagner, Valeria Bertacco

Post-Silicon and Run-Time Verification for contemporary Processors surveys the state-of-the-art and evolving instructions in post-silicon and runtime verification. the quantity supplies an outline of the state-of-the-art in verification, fairly present post-silicon methodologies in use within the undefined, either for the area of processor pipeline layout and for reminiscence subsystems. there's additionally an intensive presentation of a number of new post-silicon verification recommendations aimed toward boosting the verification insurance of contemporary processors. The presentation of runtime verification recommendations follows the same procedure. this can be a space of processor layout that continues to be in its early levels of exploration and will support accomplish the final word target of entire correctness promises for microprocessor-based computation. The booklet additionally:

· Addresses a space of verification that's transforming into either in and academia

· Covers patching and blunder avoidance

· Discusses multi-core processors with try out new release and reaction evaluation

The authors finish the booklet with a glance in the direction of the way forward for late-stage verification and its transforming into position within the processor life-cycle. Post-Silicon and Run-Time Verification for contemporary Processors could be a necessary publication for researchers and engineers operating in electric engineering.

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Dedicated languages for hardware verification (HVLs), some examples of which are OpenVera [HKM01], the e language [HMN01] and SystemVerilog [IEE07]. The latter implements a unified framework for both hardware design and verification, providing an object-oriented programming model, a rich assertion specification language, and even automatic coverage collection. 3 Formal verification Formal verification encompasses a variety techniques that have one common principle: to prove with mathematical guarantees that the design abides to a certain specification under all valid input sequences.

How do we verify it? and how do we know when verification is satisfactory? Time is another important concern in this process, since designers must meet stringent schedules, so their products remain competitive in the market. Therefore, they must often forgo guarantees of full correctness for the circuit, and rely on coverage and other indirect measures of validation thoroughness and completeness. Exacerbating the process further is the fact that the design process is not a straightforward one - some modules and verification collaterals may be inherited from previous generations of the product, and some may be only available in a low level description.

Yet all of them have limitations, requiring either deep knowledge of declarative languages for specification of formal properties or being prone to exhausting memory and time resources. Consequently, processor designers, who work with extremely large and complex system descriptions, must continue to rely mostly on logic simulation for verification of their products at the pre-silicon level. The guarantees for correctness that formal techniques provide, however, have not been overlooked by the microprocessor industry, and formal tools are often deployed to verify the most critical blocks in modern processors, particularly control units.

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