Architects' Tech Alliance
Apr 15, 2023 · Fundamentals
ARMv8‑A AArch64 Architecture Overview and Virtualization Support
This article provides a comprehensive overview of the ARMv8‑A architecture, detailing its two execution states (AArch64 and AArch32), register sets, exception levels, instruction sets, key features, and the mechanisms that enable virtualization such as hypervisor operation at EL2, stage‑2 address translation, VMID handling, and device emulation through SMMU.
ARMv8Aarch64Exception Levels
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