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Communication Dans Un Congrès Année : 2023

From the Standards to Silicon : Formally Proved Memory Controllers

Résumé

Recent research in both academia and industry has successfully used deductive verification to design hardware and prove its correctness. While tools and languages to write formally proved hardware have been proposed, applications and use cases are often overlooked. In this work, we focus on Dynamic Random Access Memories (DRAM) controllers and the DRAM itself – which has its expected temporal and functional behaviours described in the standards written by the Joint Electron Device Engineering Council (JEDEC). Concretely, we associate an existing Coq DRAM controller framework – which can be used to write DRAM scheduling algorithms that comply with a variety of correctness criteria – to a back-end system that generates proved logically equivalent hardware. This makes it possible to simultaneously enjoy the trustworthiness provided by the Coq framework and use the generated synthesizable hardware in real systems. We validate the approach by using the generated code as a plug-in replacement in an existing DDR4 controller implementation, which includes a host interface (AXI), a physical layer (PHY) from Xilinx, and a model of a memory part Micron MT40A1G8WE-075E:D. We simulate and synthesise the full system.
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Dates et versions

hal-04337961 , version 1 (12-12-2023)

Identifiants

Citer

Felipe Lisboa Malaquias, Mihail Asavoae, Florian Brandner. From the Standards to Silicon : Formally Proved Memory Controllers. NFM 2023 : NASA Formal Methods Symposium, NASA Formal Methods, May 2023, Houston (TX), United States. pp.295-311, ⟨10.1007/978-3-031-33170-1_18⟩. ⟨hal-04337961⟩
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