ACRN v2.1 (Aug 2020)¶
We are pleased to announce the release of the Project ACRN hypervisor version 2.1.
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 What Is ACRN 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 v2.1 GitHub release page) or use Git clone and checkout commands:
git clone https://github.com/projectacrn/acrn-hypervisor cd acrn-hypervisor git checkout v2.1
The project’s online technical documentation is also tagged to correspond with a specific release: generated v2.1 documents can be found at https://projectacrn.github.io/2.1/. Documentation for the latest under-development branch is found at https://projectacrn.github.io/latest/.
ACRN v2.1 requires Ubuntu 18.04. Follow the instructions in the Getting Started Guide to get started with ACRN.
We recommend that all developers upgrade to ACRN release v2.1.
What’s New in v2.1¶
Preempt-RT Linux has been validated as a pre-launched realtime VM. See Pre-Launched Preempt-RT Linux Mode in ACRN for more details.
A Trusted Platform Module (TPM) MMIO device can be passthroughed to a pre-launched VM (with some limitations discussed in MMIO Device Passthrough). Previously passthrough was only supported for PCI devices.
Open Virtual Machine Firmware (OVMF) now uses a Local Advanced Programmable Interrupt Controller (LAPIC) timer as its local time instead of the High Precision Event Timer (HPET). This provides the working timer service for the realtime virtual machine (RTVM) booting process.
Grub is the recommended bootloader for ACRN. For more information, see Using GRUB to Boot ACRN.
Improvements, updates, and corrections have been made throughout our documentation, including these:
Fixed Issues Details¶
4047 - [WHL][Function][WaaG] passthru usb, Windows will hang when reboot it
4691 - [WHL][Function][RTVM]without any virtio device, with only pass-through devices, RTVM can’t boot from SATA
4711 - [WHL][Stabilty][WaaG]Failed to boot up WaaG with core dumped in WaaG reboot test in GVT-d & CPU sharing env.
4897 - [WHL][Yocto][GVT-d]WaaG reboot failed due to USB mediator trouble in WaaG reboot stability test.
4937 - [EHL][Yocto] Fail to boot ACRN on Yocto
4958 - cleanup spin lock in hypervisor
4989 - [WHL][Yocto][acrn-configuration-tool] Fail to generate board xml on Yocto build
4991 - [WHL][acrn-configuration-tool] vuart1 of VM1 does not change correctly
4994 - Default max MSIx table is too small
5013 - [TGL][Yocto][YaaG] Can’t enter console #1 via HV console
5015 - [EHL][TGL][acrn-configuration-tool] default industry xml is only support 2 user vms
5016 - [EHL][acrn-configuration-tool] Need update pci devices for ehl industry launch xmls
5029 - [TGL][Yocto][GVT] can not boot and login waag with GVT-D
5039 - [acrn-configuration-tool]minor fix for launch config tool
5041 - Pre-Launched VM boot not successful if SR-IOV PF is passed to
5049 - [WHL][Yocto][YaaG] Display stay on openembedded screen when launch YaaG with GVT-G
5056 - [EHL][Yocto]Can’t enable SRIOV on EHL SOS
5062 - [EHL] WaaG cannot boot on EHL when CPU sharing is enabled
5066 - [WHL][Function] Fail to launch YaaG with usb mediator enabled
5067 - [WHL][Function][WaaG] passthru usb, Windows will hang when reboot it
5085 - [EHL][Function]Can’t enable SRIOV when add memmap=64M$0xc0000000 in cmdline on EHL SOS
5091 - [TGL][acrn-configuration-tool] generate tgl launch script fail
5092 - [EHL][acrn-config-tool]After WebUI Enable CDP_ENABLED=y ,build hypervisor fail
5094 - [TGL][acrn-configuration-tool] Board xml does not contain SATA information
5095 - [TGL][acrn-configuration-tool] Missing some default launch script xmls
5107 - Fix size issue used for memset in create_vm
5115 - [REG][WHL][WAAG] Shutdown waag fails under CPU sharing status
5122 - [WHL][Stabilty][WaaG][GVT-g & GVT-d]Failed to boot up SOS in cold boot test.
4313 - [WHL][VxWorks] Failed to ping when VxWorks passthru network
5150 - [REG][WHL][[Yocto][Passthru] Launch RTVM fails with usb passthru
5151 - [WHL][VxWorks] Launch VxWorks fails due to no suitable video mode found
5152 - [WHL][Yocto][Hybrid] in hybrid mode ACRN HV env, can not shutdown pre-lanuched RTVM
5154 - [TGL][Yocto][PM] 148213_PM_SystemS5 with life_mngr fail
5157 - [build from source] during build HV with XML, “TARGET_DIR=xxx” does not work