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76 lines
2.6 KiB
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76 lines
2.6 KiB
ReStructuredText
.. _release_notes_2.1:
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ACRN v2.1 (August 2020)
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#######################
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We are pleased to announce the release of the Project ACRN
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hypervisor version 2.1.
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ACRN is a flexible, lightweight reference hypervisor that is built with
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real-time and safety-criticality in mind. It is optimized to streamline
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embedded development through an open source platform. Check out
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:ref:`introduction` introduction for more information. All project ACRN
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source code is maintained in the
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https://github.com/projectacrn/acrn-hypervisor repository and includes
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folders for the ACRN hypervisor, the ACRN device model, tools, and
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documentation. You can either download this source code as a zip or
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tar.gz file (see the `ACRN v2.1 GitHub release page
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<https://github.com/projectacrn/acrn-hypervisor/releases/tag/v2.1>`_) or
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use Git clone and checkout commands::
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git clone https://github.com/projectacrn/acrn-hypervisor
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cd acrn-hypervisor
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git checkout v2.1
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The project's online technical documentation is also tagged to
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correspond with a specific release: generated v2.1 documents can be
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found at https://projectacrn.github.io/2.1/. Documentation for the
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latest under-development branch is found at
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https://projectacrn.github.io/latest/.
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ACRN v2.1 requires Ubuntu 18.04. Follow the instructions in the
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:ref:`rt_industry_ubuntu_setup` to get started with ACRN.
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We recommend that all developers upgrade to ACRN release v2.1.
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What's new in v2.1
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******************
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* Preempt-RT Linux has been validated as a pre-launched realtime VM.
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* A Trusted Platform Module (TPM) MMIO device can be passthroughed to a
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pre-launched VM (with some limitations discussed in
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:ref:`mmio-device-passthrough`). Previously passthrough was only
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supported for PCI devices.
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* Open Virtual Machine Firmware (OVMF) now uses a Local Advanced
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Programmable Interrupt Controller (LAPIC) timer as its local time
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instead of the High Precision Event Timer (HPET).
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Improvements, updates, and corrections have been made throughout our documentation,
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including these:
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* :ref:`contribute_guidelines`
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* :ref:`hv_rdt`
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* :ref:`ivshmem-hld`
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* :ref:`mmio-device-passthrough`
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* :ref:`virtio-net`
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* :ref:`getting-started-building`
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* :ref:`acrn_configuration_tool`
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* :ref:`pre_launched_rt`
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* :ref:`rdt_configuration`
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* :ref:`using_hybrid_mode_on_nuc`
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* :ref:`using_partition_mode_on_nuc`
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* :ref:`using_windows_as_uos`
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* :ref:`debian_packaging`
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Fixed Issues Details
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********************
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.. comment Issues should be carefully formatted like this
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- :acrn-issue:`3715` - Add support for multiple RDT resource allocation and fix L3 CAT config overwrite by L2
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Known Issues
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************
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