Xen 4.3 Feature List

This is a work in progress

Other Xen Releases

See Xen Release Features for a comparison of the featureset of different Xen releases.

To Do: Fill these out based on Xen_Roadmap/4.3 and Xen_4.3_Release_Notes

High Level features

• Toolstack integrations
  • Open vSwitch toostack integration
  • Allow multiple USB devices to be specified in the config-file

• Usability improvements
  • Install into /usr/local by default

• Default to QEMU upstream
  • pci pass-thru
  • enable dirtybit tracking during migration
  • xl cd-{insert,eject}

• Support for ARM Servers
  • ARM v7 server port (basic)
  • ARM v8 server port (basic)

• Security:
  • vTPM updates
  • Allow XSM to override IS_PRIV checks in the hypervisor

• Scalability:
  • 16TiB of RAM

• Performance
  • NUMA scheduler affinity
  • Persistent grants for blk - Linux and QEMU
  • CPUID-based idle (don't rely on ACPI info f/ dom0)

• Tools
  • Serial console supports EHCI debug ports

Detailed List

To Do: This needs to be fleshed out

Also See

• Category:Xen 4.3 - Contains articles and tutorials related to new functionality in Xen 4.3