X-HYP Professional edition

Professionnal Hypervisor for ARM

Unlike X-Hyp-Free which is licensed with a GPL-v2 license, Xhyp Pro is licensed with a commercial license. Xhyp Pro includes a lot of improvements against the free version.

• More schedulers: EDF and CBS schedulers.
• Precises timers, with up to nano seconds precision depending on architecture.
  Precision do not mean you can trigger a timer every nanoseconds, this, depends on hardware, configuration, scheduler etc. , but nanoseconds is the precision you can use to schedule a domain or triger a timer inside of a scheduled domain.
  X-HYP guarantee this precision as long as the hardware timer is precise enough, getting rid of software, bus and caching overhead.
• Enhanced cache control, leading to a reduced domain switch jitter
• Enhanced cache control, leading to a reduced interrupt latency
• Enhanced MMU support for GPOS allowing Linux or BSD paravirtualization

Like Xhyp Free, it has been ported to different ARM architectures:

• ARMv4 : ARM926ejs processor with MMU, a general purpose processor largelly used in embedded systems.
• ARMv7: Cortex A8 processor with MMU, the new generation of ARM processor with enhanced security (trustzone).
• ARMv7: Cortex M3 processor with MPU the new embedded oriented ARM core

Xhyp-pro drivers

Xhyp-Pro can be packaged with driver domains on demands. Pre-defined drivers may include:

• A console driver domain for PL011 serial UART
• A network driver domain for LAN91C111 ethernet controller

Xhyp-pro realtime behaviors

X-HYP can be build with different realtime schedulers:

• POSIX: confirming to POSIX 1003.1b with 32 levels of priority and FIFO and Round Robin classes. Allowing multiple POSIX realtime partitions and multiple GPOS partitions.
  This scheduler is targetting control-command applications.
• ARINC: partially conforming to ARINC 653 with dynamic plan modification including large and small frames. Allowing multiple ARINC realtime partitions and a ARINC partition manager.
  This scheduler is targetting aero-space applications.
• Sproradic: to respond quickly on a single dedicated realtime partition. Allowing a single realtime partition and multiple GPOS partitions.
  This scheduler is targetting phones applications.
• EDF: Earliest Deadline First scheduler. With per partition budget and deadline and a dedicated domain for EDF scheduling issues.
  This scheduler is targetting robotics applications.
• CBS: EDF based Constant Bandwidth Scheduler to insure a domain gets scheduled for a defined time slot on a defined period.
  This scheduler is targetting multi-media applications.

Xhyp pro includes an application builder

Xhyp pro application builders allows you inside a semi-graphic dialog menu to:

• Choose partitions sizes
• Incorporate your para virtualised guest with Xhyp
• Choose the scheduling scheme you want to use, POSIX, ARINC, EDF, CBS or Sporadic
• Define the priorities associated to each partition for POSIX scheme
• Define ARINC major and minor frames and periods
• Define ARINC, EDF or CBS control domains.

Dual licensing

X-HYP is available under two different license:

• A GPL-v2 license available for Universities and testing purpose
• Commercial license for product embedding

For more information consult our licensing page.