Download Xen 4.6 RC3

Xen is a “virtual machine hypervisor” for the x86 and ARM platforms, allowing multiple operating systems to run simultaneously on a single system without drastically impacting performance. For more information about Xen and its community, please refer to this one and this one page. Currently, only Linux, NetBSD, and FreeBSD are supported as host systems, but work is underway to fully support other operating systems as well. The developers have released Xen 4.6 RC3 with the following completed features in the roadmap to be mentioned:

hypervisor

• New Migration (v2)
• Clean-up of mem-event subsystem

Hypervisor x86

• HVM guest NUMA (SRAT) (good) See vNUMA in Xen toolstack
• Regression in PCI passthrough of INTx legacy devices can trigger list corruption

Hypervisor Intel

• Intel memory bandwidth monitoring for VMs
• Intel Cache Allocation Technology
• Intel PML (Page Modification Logging) for Xen
• Enable vTPM subsystem on TPM 2.0

Hypervisor ARM

• Mem_access for ARM
• ARM – SMMU resync of Linux’s one
• ARM – passthrough or non-PCI
• ARM – SMMU resync of Linux’s one
• ARM: reenable support 32-bit userspace running in 64-bit guest

Hypervisor ARM / SoC Support

• ThunderX platform support
• Add support for Huawei hip04-d01 platform
• Add support for Xilinx ZynqMP SoC

Hypervisor ARM / Automotive

• arm: introduce basic Renesas R-Car Gen2 platform support (done)

Xen tool stack

• libxl: add qxl vga interface support for upstream qemu
• SPICE support improvement
• vNUMA in Xen tool stack
• Display IO topology when PXM data is available

Other OSes (MiniOS, QNX)

• Splitting off mini os

OVMF

• OVMF on ARM
• Update Xen tree to use upstream OVMF

Quality

• Set up independent Xen Project test lab
• setup CI loop for OpenStack
• Significant new Test Cases added to OSSTEST