AMD SEV-SNP: A Confidential Computing Primer

Computer Science > Cryptography and Security [Submitted on 3 Aug 2026] AMD SEV-SNP: A Confidential Computing Primer Amean Asad, Patrick McClurg, Patrick Woodhead This paper is a technical primer on AMD Secure Encrypted Virtualization with Secure Nested Paging (SEV-SNP), a hardware confidential computing implementation that provides Trusted Execution Environments (TEEs) for virtual machines. SEV-SNP treats the hypervisor as adversarial. It encrypts guest memory and register state with keys the hypervisor never possesses, detects any tampering with guest memory at the point of access, and lets a guest prove to a remote verifier exactly what code it is running. The paper constructs each of these guarantees from the hardware up. It opens with the threat model that drives the design and the hardware that enforces it, the AMD Secure Processor and the encryption engine in the memory controller. It then develops the mechanisms that make a confidential guest practical. The Reverse Map Table provides memory integrity against an adversary who controls the page tables. The privilege and communication machinery (VM Privilege Levels, the encrypted VM Save Area, and the GHCB protocol) lets the guest cooperate with a hypervisor it does not trust. The attestation pipeline binds a hardware-signed measurement of the guest's initial state to AMD's certificate chain, so a remote verifier can confirm independently what is running. Comments: 46 pages, 22 figures Subjects: Cryptography and Security (cs.CR) ACM classes: D.4.6; K.6.5 Cite as: arXiv:2608.04039 [cs.CR]   (or arXiv:2608.04039v1 [cs.CR] for this version)   https://doi.org/10.48550/arXiv.2608.04039 Focus to learn more Submission history From: Amean Asad [view email] [v1] Mon, 3 Aug 2026 20:59:25 UTC (61 KB) Access Paper: HTML (experimental) view license Current browse context: cs.CR < prev   |   next > new | recent | 2026-08 Change to browse by: cs References & Citations NASA ADS Google Scholar Semantic Scholar Export BibTeX Citation Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer (What is the Explorer?) Connected Papers Toggle Connected Papers (What is Connected Papers?) Litmaps Toggle Litmaps (What is Litmaps?) scite.ai Toggle scite Smart Citations (What are Smart Citations?) Code, Data, Media Demos Related Papers About arXivLabs Which authors of this paper are endorsers? | Disable MathJax (What is MathJax?)