TrustWeave: Integrity Measurement and Attestation For Multi-Cloud LLMs

Multi-cloud deployed multi-agent systems powered by Large Language Models (LLMs) introduce critical security challenges. While Intel Trust Domain Extensions (TDX)-based Confidential Virtual Machines (CVMs) provide strong isolation and boot-time attestation, they lack dynamic runtime integrity verification, a capability essential for trusted agent systems that frequently load new models and coordinate across distributed services. We present TrustWeave, a runtime integrity measurement and attestation framework that extends the Linux Integrity Measurement Architecture (IMA) with support for Intel TDX's Runtime Measurement Registers (RTMRs). TrustWeave enables userspace attestation of dynamically loaded agent components throughout their life-cycle, providing runtime trust guarantees for secure and scalable LLM agent deployments.