Xen project, a project hosted by the Linux Foundation, has announced the release of Xen project 4.7. The release would reduce downtime and improve the user experience with patching security without interruption, and includes security enhancements for embedded, use cases of car safety, and new IoT. The new version also adds support for the latest hardware features in Intel and ARM.
Xen Hypervisor 4.7 project is equipped with Living Patching , a technology that enables deployment without re-boot security patches to minimize disruption and downtime during security upgrades for system administrators and practitioners Devops.
Xen Project 4.7 implements version 1 Hypervisor live Patcher specification, which is designed to encode the vast majority of patches security (0%) as payloads live patching. This version comes with a live patching enabled the hypervisor tools and deployment of the payload and is available as a technology preview.
Security IoT
To security, the case of the automobile and the IoT use embedded Xen project introduced the ability to remove kernel Xen hypervisor has at compile time via kconfig . This capability creates a lightweight hypervisor and eliminates additional attack surfaces that are beneficial in environments of safety first, architectures and environments that have needs for compliance and certification heavy, as Microservice automobile.
"The Xen hypervisor project is innovative in all areas and continues to evolve to meet new needs of cloud computing and computing infrastructures," said Lars Kurth, president of the Xen Advisory Board project . "Xen project 4.7 is a testament to the incredible collaboration that goes on in the community, and a continuation of our shorter release cycle."
the Xen project more powers 10 million users in enterprise and cloud computing, in addition to embedded and mobile systems. first to market with Intel and ARM features, many of the largest companies in the world and service providers use and invest in the Xen Project.
softwarethe main contributions of this press release from AMD, ARM, Bitdefender, Bosch, Broadcom, Citrix, Fujitsu, GlobalLogic, Huawei, Intel, Linaro, Netflix, Novetta, NOS , Oracle, Red Hat, Star Lab, SUSE, Xilinx and a number of universities and individuals.
The of new features and capabilities are available in Xen project Hypervisor 4.7:
- usability improvement - in Xen 4.7, a new command line interface to manage XL PVUSB devices has been introduced to manage PVUSB devices for PV guests. The new XL commands also allows hot plugging of USB devices and QEMU disk backends such as drbd, iscsi, and HVM guests. This new feature allows users to add and delete disk backends to virtual machines without having to restart the client. In addition, the soft reset for HVM guests allows a graceful shutdown and restart of the HVM guest
- Support for a wider range of workloads and applications -. The restriction limiting PV invited 512GB has been removed to allow the creation of huge PV fields in the range of tuberculosis. TB size VMs, coupled with the existing support for Xen project 512 vCPUs per VM, enable the execution of memory and compute intensive workloads such as large data analysis workloads and memory databases
- improved support for Live Migration. - CPU leveling ID enables the migration of virtual machines between a larger number of non-identical hosts that previously supported
- improved development with ARM -. Xen project now supports booting hosts exhibiting ACPI 6.0 (and later) information. Basic requirements start ARM server (SBBR) stipulate that compliant systems need to express with ACPI hardware resources; and this support will be very useful for ARM servers. This effort was made by Shannon Zhao Linaro with minor spots Julien Grall ARM.
In addition, HPIC 1.0 compatibility allows the project Xen software to run on systems that expose PCSI 1.0 methods. Now all 1.x versions of HPIC will be compatible with the Xen Project software.
Intel Xeon Processor
- New feature support for Intel Xeon family treatment products - Xen 4.7 supports Project load VT-d Posted interruptions, which provides an acceleration in hardware to increase the efficiency of virtualization interrupt. It reduces latency and improves the user experience through performance improvements, especially for front-end workloads interrupt-intensive such as Web servers.
Xen Project 4.7 is the first to include Code and prioritization of data (CDP) , part of the guidelines Intel Technology Resource (TDR) and an extension memory allocation technology Cache (CAT), first introduced in Xen Project 4.6. The introduction of CDP allows the isolation of code / data in the shared L3 cache for multi-tenant environments, reducing conflicts and improving the performance
Additional features specific to the processor family Intel Xeon Project in Xen 4.7 include :. VMX TSC Scaling, which allows easier migration between machines with different frequencies and support for key memory protection, a new security feature for curing the software stack CPU.
"Intel is focused on enabling the widespread adoption of cloud and works in the industry to offer the best architecture for current and future needs of computing, storage and networking "said Susie Li, director of virtualization, Intel Open Source Technology Center and project Xen Advisory Board member ." the work of the Xen project community has reached underlies many of the largest and more prosperous world data centers in the world, setting the standard for performance, safety and capacity. Xen Project 4.7 is developed with the latest Intel platform features to make it easier to deploy and clouds scale, so that companies can provide services to their customers faster and more securely. "
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