Documentation

A-Profile Architecture Specifications

CPU (processor) architecture

The Arm Architecture Reference Manual (ArmARM) provides a definitive description of the Arm architecture. This includes the instruction set, exception model and debug architecture for both the AArch32 and AArch64 Execution states.

• Arm® Architecture Reference Manual Armv8, for Armv8-A architecture profile
• Arm® Architecture Reference Manual Supplement - The Scalable Vector Extension (SVE), for Armv8-A
• Arm® Architecture Reference Manual Supplement Memory System Resource Partitioning and Monitoring (MPAM), for Armv8-A 
• Arm® Reliability, Availability, and Serviceability (RAS) Specification - Armv8, for the Armv8-A architecture profile
• Arm® Architecture Reference Manual Armv7-A and Armv7-R edition
• Armv5 Architecture Reference Manual

Generic Interrupt Controller (GIC) architecture

• Arm® Generic Interrupt Controller Architecture Specification GIC architecture version 3.0 and 4.0
• Arm® Generic Interrupt Controller Architecture version 2.0 - Architecture Specification
• Arm® System Memory Management Unit Architecture Specification, SMMU architecture version 3.0, 3.1, and 3.2
• Arm® System Memory Management Unit Architecture Specification - SMMU architecture version 2.0

System and software specifications

• Arm® Functional Fixed Hardware Specification
• Trusted Board Boot Requirements Client (TBBR-CLIENT) Armv8-A Documentation
• Arm® Server Base Security Guide
• Arm® Paravirtualized Time for Arm-based Systems
• SMC CALLING CONVENTION (SMCCC) 
• Trusted Base System Architecture, Client (4th Edition) – System Hardware on Arm 
• Trusted Board Boot Requirements Client (TBBR-Client) Armv8-A
• SVE impact on secure firmware
 

Platform design documents

• Arm® System Control and Management Interface - Platform Design Document
• Software Delegated Exception Interface (SDEI) - Platform Design Document
• IO Remapping Table - Platform Design Document
• ACPI for CoreSight™ 1.0 Platform Design Document - Platform Design Document
• ACPI for the Armv8 RAS Extensions 1.0 - Platform Design Document