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ACRN Hypervisor Release Version 3.2

By August 8, 2023Blog

We are pleased to announce the release of ACRN™ hypervisor version 3.2.

What’s New in v3.2

In this v3.2 release, we’ve enabled a new generation of Intel® processors, added configuration of processor performance (frequency) policy, updated how ACRN is packaged for target installation, and updated to the latest LTS version of Ubuntu used as the Service VM.

If you have feedback on these changes or other aspects of ACRN, please share them on the ACRN users mailing list.

Enabling New Generation Intel® Processors

ACRN v3.2 release now supports 12th Generation Intel® Atom N-Series Processors (formerly code-named Alder Lake N) and 13th Generation Intel® Core™ Mobile and Desktop Processors (formerly code-named Raptor Lake) with real-time SKUs.

Hypervisor-Managed Processor Performance Policy Controls

The ACRN hypervisor Configurator now provides processor performance policy control for CPU frequency if the system supports hardware-controlled performance states (HWP). This ensures that loaded CPUs can run at least at their guaranteed frequency level. Read more in the ACRN Configurator Tool and Scenario Configuration Options documents.

New Debianization Solution for ACRN

The v3.2 release provides a standardized approach for ACRN debianization. We provide an option to build each component as a separate Debian package and allow users to select the binary to deploy at package installation time. Users can also reselect the binary by reconfiguring the installed package.

Service VM Upgraded to use Ubuntu 22.04

The v3.2 release upgrades the Service VM OS from Ubuntu 20.04 to 22.04.

See the full v3.2 release notes and documentation for more information about this release, including fixed and known issues.