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Removed white space at the end of the line, and fixed a sentence that did not have a space after the period. Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
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.. _release_notes_0.2:
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ACRN v0.2 (Sep 2018) DRAFT
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##########################
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We are pleased to announce the release of Project ACRN version 0.2.
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ACRN is a flexible, lightweight reference hypervisor, built with
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real-time and safety-criticality in mind, optimized to streamline
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embedded development through an open source platform. Check out the
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:ref:`introduction` for more information.
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The project ACRN reference code can be found on GitHub in
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https://github.com/projectacrn. It includes the ACRN hypervisor, the
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ACRN device model, and documentation.
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Version 0.2 new features
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************************
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VT-x, VT-d
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================
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Based on Intel VT-x virtualization technology, ACRN emulates a virtual
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CPU with core partition and simple schedule. VT-d provides hardware
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support for isolating and restricting device accesses to the owner of
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the partition managing the device. It allows assigning I/O devices to a VM,
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and extending the protection and isolation properties of VMs for I/O operations.
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PIC/IOAPIC/MSI/MSI-X/PCI/LAPIC
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================================
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ACRN hypervisor supports virtualized APIC-V/EPT/IOAPIC/LAPIC functionality.
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Ethernet
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================
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ACRN hypervisor supports virtualized Ethernet functionality. Ethernet Mediator is
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executed in the Service OS and provides packet forwarding between the physical
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networking devices (Ethernet, Wi-Fi, etc.) and virtual devices in the Guest
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VMs(also called "User OS"). Virtual Ethernet device could be shared by Linux,
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Android, and Service OS guests for regular (i.e. non-AVB) traffic. All hypervisor
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para-virtualized I/O is implemented using the VirtIO specification Ethernet pass-through.
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Storage (eMMC)
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================
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ACRN hypervisor supports virtualized non-volatile R/W storage for the Service
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OS and Guest OS instances, supporting VM private storage and/or storage shared
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between Guest OS instances.
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USB (xDCI)
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================
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ACRN hypervisor supports virtualized assignment of all USB xHCI and/or xDCI
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controllers to a Guest OS from the platform.
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USB Mediator (xHCI and DRD)
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===========================
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ACRN hypervisor supports a virtualized USB Mediator.
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CSME
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================
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ACRN hypervisor supports a CSME to a single Linux, Android, or RTOS guest or
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the Service OS even when in a virtualized environment.
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WiFi
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================
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ACRN hypervisor supports the passthrough assignment of the WiFi subsystem to the IVI,
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enables control of the WiFi as an in-vehicle hotspot for 3rd party devices,
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provides 3rd party device applications access to the vehicle,
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and provides access of 3rd party devices to the TCU provided connectivity.
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IPU (MIPI-CS2, HDMI-in)
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========================
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ACRN hypervisor supports passthrough IPU assignment to Service OS or
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guest OS, without sharing.
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Bluetooth
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================
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ACRN hypervisor supports bluetooth controller passthrough to a single Guest OS (IVI).
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GPU – Preemption
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==================
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GPU Preemption is one typical automotive use case which requires
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the system to preempt GPU resources occupied by lower priority
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workloads. This is done to ensure performance of the most critical
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workload can be achieved. Three different schedulers for the GPU
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are involved: i915 UOS scheduler, Mediator GVT scheduler, and
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i915 SOS scheduler.
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GPU – display surface sharing via Hyper DMA
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============================================
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Surface sharing is one typical automotive use case which requires
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that the SOS accesses an individual surface or a set of surfaces
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from the UOS without having to access the entire frame buffer of
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the UOS. Hyper DMA Buffer sharing extends the Linux DMA buffer
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sharing mechanism where one driver is able to share its pages
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with another driver within one domain.
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S3
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================
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ACRN hypervisor supports S3 feature, partially enabled in LaaG.
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Fixed Issues
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************
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:acrn-issue:`663` - Black screen displayed after booting SOS/UOS
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:acrn-issue:`676` - Hypervisor and DM version numbers incorrect
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:acrn-issue:`1126` - VPCI coding style and bugs fixes for partition mode
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:acrn-issue:`1125` - VPCI coding style and bugs fixes found in integration testing for partition mode
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:acrn-issue:`1101` - missing acrn_mngr.h
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:acrn-issue:`1071` - hypervisor cannot boot on skylake i5-6500
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:acrn-issue:`1003` - CPU: cpu info is not correct
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:acrn-issue:`971` - acrncrashlog funcitons need to be enhance
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:acrn-issue:`843` - ACRN boot failure
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:acrn-issue:`721` - DM for IPU mediation
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:acrn-issue:`707` - Issues found with instructions for using Ubuntu as SOS
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:acrn-issue:`706` - Invisible mouse cursor in UOS
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:acrn-issue:`424` - ClearLinux desktop GUI of SOS fails to launch
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Known Issues
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************
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.. comment
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Use the syntax:
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:acrn-issue:`663` - Black screen displayed after booting SOS/UOS
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The ``weston`` display server, window manager, and compositor used by ACRN
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(from Clear Linux) may not have been properly installed and started.
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**Workaround** is described in ACRN GitHub issue :acrn-issue:`663`.
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Change Log
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**********
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These commits have been added to the acrn-hypervisor repo since the v0.1
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release in July 2018 (click on the CommitID link to see details):
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.. comment
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This list is obtained from the command:
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git log --pretty=format:'- :acrn-commit:`%h` %s' --after="2018-03-01"
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