ARMv8 | BestHub

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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ARMv8‑A AArch64 Architecture Overview and Virtualization Support

Architects' Tech Alliance

Mar 8, 2023 · Fundamentals

Overview of ARMv8 Architecture and the Transition from 32‑bit to 64‑bit

This article provides a comprehensive overview of the ARMv8 architecture, describing its 32‑bit (AArch32) and 64‑bit (AArch64) execution states, the benefits of larger registers and address spaces, and detailed specifications of Cortex‑A53, Cortex‑A57, and Cortex‑A73 processors.

64-bitARMv8Aarch64

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Overview of ARMv8 Architecture and the Transition from 32‑bit to 64‑bit

OPPO Kernel Craftsman

Apr 30, 2020 · Fundamentals

Detailed Explanation of ARMv8 Exception Handling Process

The article provides a thorough walkthrough of ARMv8 exception handling, describing the four exception levels (EL0‑EL3) and their dedicated stack and status registers, distinguishing synchronous and asynchronous faults, and detailing the vector table, entry routine, ESR‑based type decoding, handling steps such as do_mem_abort, and context restoration, illustrated with a Data Abort case.

ARMv8ELRESR

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Detailed Explanation of ARMv8 Exception Handling Process