Tracing a Crafted NS-EL1 Request Through an Upstream TF-A/QEMU Secure Boot Chain
A technical execution-trace analysis of crafted NS-EL1 requests, Trusted Firmware-A state transitions, QEMU exception tracing, and EL3-to-Secure-boundary memory-corruption primitives.
A deep technical walkthrough of how a crafted request moves from a non-secure guest into Trusted Firmware-A, where security-boundary checks can fail, and how QEMU tracing exposes the exact transition.
- NS-EL1 to EL3 execution flow
- TF-A and QEMU Secure Boot states
- Exception traces and memory-corruption primitives
- Verification boundaries and defensive testing
Best for: Firmware engineers, security researchers, reverse engineers, and advanced students