1.1.1 64-bit Arm (aarch64) architecture

With Unbreakable Enterprise Kernel Release 5 Update 1, Oracle continues to deliver kernel modifications to enable support for 64-bit Arm (aarch64) architecture. These changes are built and tested against existing Arm hardware and provide support for Oracle Linux for Arm. Features described in this document are available for Arm insofar as the hardware is capable of supporting the feature that is described. Limitations and items beyond the scope of current development work for Arm are described in more detail in Section 3.1, “Unusable or Unavailable Features for Arm”.

Where specific changes have been made for Arm architecture, these are usually noted through this document. Particular effort has gone into updating and improving DTrace features to include support for the 64-bit Arm (aarch64) architecture, see Section 1.1.3, “DTrace” for more information.