148 lines
6.5 KiB
ReStructuredText
148 lines
6.5 KiB
ReStructuredText
.. _release_notes_2.2:
|
|
|
|
ACRN v2.2 (Sep 2020)
|
|
####################
|
|
|
|
We are pleased to announce the release of the Project ACRN
|
|
hypervisor version 2.2.
|
|
|
|
ACRN is a flexible, lightweight reference hypervisor that is built with
|
|
real-time and safety-criticality in mind. It is optimized to streamline
|
|
embedded development through an open source platform. Check out the
|
|
:ref:`introduction` introduction for more information. All project ACRN
|
|
source code is maintained in the
|
|
https://github.com/projectacrn/acrn-hypervisor repository and includes
|
|
folders for the ACRN hypervisor, the ACRN device model, tools, and
|
|
documentation. You can either download this source code as a zip or
|
|
tar.gz file (see the `ACRN v2.2 GitHub release page
|
|
<https://github.com/projectacrn/acrn-hypervisor/releases/tag/v2.2>`_) or
|
|
use Git clone and checkout commands::
|
|
|
|
git clone https://github.com/projectacrn/acrn-hypervisor
|
|
cd acrn-hypervisor
|
|
git checkout v2.2
|
|
|
|
The project's online technical documentation is also tagged to
|
|
correspond with a specific release: generated v2.2 documents can be
|
|
found at https://projectacrn.github.io/2.2/. Documentation for the
|
|
latest under-development branch is found at
|
|
https://projectacrn.github.io/latest/.
|
|
|
|
ACRN v2.2 requires Ubuntu 18.04. Follow the instructions in the
|
|
:ref:`rt_industry_ubuntu_setup` to get started with ACRN.
|
|
|
|
|
|
What's New in v2.2
|
|
******************
|
|
|
|
Elkhart Lake and Tiger Lake processor support.
|
|
At `Intel Industrial iSummit 2020
|
|
<https://newsroom.intel.com/press-kits/intel-industrial-summit-2020>`_,
|
|
Intel announced the latest additions to their
|
|
enhanced-for-IoT Edge portfolio: the Intel |reg| Atom |reg| x6000E Series, Intel |reg|
|
|
Pentium |reg| and Intel |reg| Celeron |reg| N and J Series (all codenamed Elkhart Lake),
|
|
and 11th Gen Intel |reg| Core |trade| processors (codenamed Tiger Lake-UP3). The ACRN
|
|
team is pleased to announce that this ACRN v2.2 release already supports
|
|
these processors.
|
|
|
|
* Support for time deterministic applications with new features, e.g.,
|
|
Time Coordinated Computing and Time Sensitive Networking
|
|
* Support for functional safety with new features, e.g., Intel Safety Island
|
|
|
|
On Elkhart Lake, ACRN can boot using Slim Bootloader
|
|
`Slim Bootloader <https://slimbootloader.github.io/>`_ is an
|
|
alternative bootloader to UEFI firmware.
|
|
|
|
Shared memory based inter-VM communication (ivshmem) is extended
|
|
ivshmem now supports all kinds of VMs including pre-launched VM, Service VM, and
|
|
other User VMs. (See :ref:`ivshmem-hld`)
|
|
|
|
**CPU sharing supports pre-launched VM.**
|
|
|
|
**RTLinux with preempt-RT Linux kernel 5.4 is validated both as a pre-launched and post-launched VM.**
|
|
|
|
**ACRN hypervisor can emulate MSI-X based on physical MSI with multiple vectors.**
|
|
|
|
Staged removal of deprivileged boot mode support.
|
|
ACRN has supported deprivileged boot mode to ease the integration of
|
|
Linux distributions such as Clear Linux. Unfortunately, deprivileged boot
|
|
mode limits ACRN's scalability and is unsuitable for ACRN's hybrid
|
|
hypervisor mode. In ACRN v2.2, deprivileged boot mode is no longer the default
|
|
and will be completely removed in ACRN v2.3. We're focusing instead
|
|
on using multiboot2 boot (via Grub). Multiboot2 is not supported in
|
|
Clear Linux though, so we have chosen Ubuntu (and Yocto Project) as the
|
|
preferred Service VM OSs moving forward.
|
|
|
|
Document Updates
|
|
****************
|
|
|
|
New and updated reference documents are available, including:
|
|
|
|
.. rst-class:: rst-columns2
|
|
|
|
* :ref:`develop_acrn`
|
|
* :ref:`asm_coding_guidelines`
|
|
* :ref:`c_coding_guidelines`
|
|
* :ref:`contribute_guidelines`
|
|
* :ref:`hv-cpu-virt`
|
|
* :ref:`IOC_virtualization_hld`
|
|
* :ref:`hv-startup`
|
|
* :ref:`hv-vm-management`
|
|
* :ref:`ivshmem-hld`
|
|
* :ref:`virtio-i2c`
|
|
* :ref:`sw_design_guidelines`
|
|
* :ref:`faq`
|
|
* :ref:`getting-started-building`
|
|
* :ref:`introduction`
|
|
* :ref:`acrn_configuration_tool`
|
|
* :ref:`enable_ivshmem`
|
|
* :ref:`setup_openstack_libvirt`
|
|
* :ref:`using_grub`
|
|
* :ref:`using_partition_mode_on_nuc`
|
|
* :ref:`connect_serial_port`
|
|
* :ref:`using_yp`
|
|
* :ref:`acrn-dm_parameters`
|
|
* :ref:`hv-parameters`
|
|
* :ref:`acrnctl`
|
|
|
|
Because we're dropping deprivileged boot mode support in the next v2.3
|
|
release, we're also switching our Service VM of choice away from Clear
|
|
Linux. We've begun this transition in the v2.2 documentation and removed
|
|
some Clear Linux-specific tutorials. Deleted documents are still
|
|
available in the `version-specific v2.1 documentation
|
|
<https://projectacrn.github.io/v2.1/>`_.
|
|
|
|
|
|
Fixed Issues Details
|
|
********************
|
|
- :acrn-issue:`5008` - Slowdown in UOS (Zephyr)
|
|
- :acrn-issue:`5033` - SOS decode instruction failed in hybrid mode
|
|
- :acrn-issue:`5038` - [WHL][Yocto] SOS occasionally hangs/crashes with a kernel panic
|
|
- :acrn-issue:`5048` - iTCO_wdt issue: can't request region for resource
|
|
- :acrn-issue:`5102` - Can't access shared memory base address in ivshmem
|
|
- :acrn-issue:`5118` - GPT ERROR when write preempt img to SATA on NUC7i5BNB
|
|
- :acrn-issue:`5148` - dm: support to provide ACPI SSDT for UOS
|
|
- :acrn-issue:`5157` - [build from source] during build HV with XML, "TARGET_DIR=xxx" does not work
|
|
- :acrn-issue:`5165` - [WHL][Yocto][YaaG] No UI display when launch Yaag gvt-g with acrn kernel
|
|
- :acrn-issue:`5215` - [UPsquared N3350 board] Solution to Bootloader issue
|
|
- :acrn-issue:`5233` - Boot ACRN failed on Dell-OptiPlex 5040 with Intel i5-6500T
|
|
- :acrn-issue:`5238` - acrn-config: add hybrid_rt scenario XML config for ehl-crb-b
|
|
- :acrn-issue:`5240` - passthrough DHRD-ignored device
|
|
- :acrn-issue:`5242` - acrn-config: add pse-gpio to vmsix_on_msi devices list
|
|
- :acrn-issue:`4691` - hv: add vgpio device model support
|
|
- :acrn-issue:`5245` - hv: add INTx mapping for pre-launched VMs
|
|
- :acrn-issue:`5426` - hv: add vgpio device model support
|
|
- :acrn-issue:`5257` - hv: support PIO access to platform hidden devices
|
|
- :acrn-issue:`5278` - [EHL][acrn-configuration-tool]: create a new hybrid_rt based scenario for P2SB MMIO pass-thru use case
|
|
- :acrn-issue:`5304` - Cannot cross-compile - Build process assumes build system always hosts the ACRN hypervisor
|
|
|
|
Known Issues
|
|
************
|
|
- :acrn-issue:`5150` - [REG][WHL][[Yocto][Passthru] Launch RTVM fails with USB passthru
|
|
- :acrn-issue:`5151` - [WHL][VxWorks] Launch VxWorks fails due to no suitable video mode found
|
|
- :acrn-issue:`5154` - [TGL][Yocto][PM] 148213_PM_SystemS5 with life_mngr fail
|
|
- :acrn-issue:`5368` - [TGL][Yocto][Passthru] Audio does not work on TGL
|
|
- :acrn-issue:`5369` - [TGL][qemu] Cannot launch qemu on TGL
|
|
- :acrn-issue:`5370` - [TGL][RTVM][PTCM] Launch RTVM failed with mem size smaller than 2G and PTCM enabled
|
|
- :acrn-issue:`5371` - [TGL][Industry][Xenomai]Xenomai post launch fail
|