| News & PressGreen Hills Software to Showcase Secure Guest
      Operating System Virtualization on Platform for Secure Networking at Interop  
  INTEROP 2009 LAS VEGAS, SANTA BARBARA, CA—May 14, 2009 — Green
        Hills Software, Inc., the world leader in certified safe and secure real-time
        operating systems (RTOS), will be holding private demonstrations of its
        secure guest OS virtualization architecture in combination with the Green
        Hills GateD® Layer 3 routing and Layer 2 switching software. Secure Virtualization Architecture (SVA) Green Hills Software's processor-independent approach to system virtualization
          enables a complete guest operating system and its applications' ecosystem
          to securely and seamlessly coexist with the performance, reliability-critical,
          and real-time portions of the networking devices — all on a single
          general purpose microprocessor. System availability is increased by
          eliminating non-critical application failures or corruption in the
          guest operating system by compromising the critical real-time packet
          traffic for applications and services running on the INTEGRITY® RTOS.
 INTEGRITY, the world's first Common Criteria EAL6+ certified operating
        system technology, assures high availability and secure isolation between
        networking subsystems. The INTEGRITY advanced security architecture prevents
        denial-of-service attacks while guaranteeing optimal real-time performance
        for packet processing applications. Demonstration Information: 
        
          | When: | Tuesday and Wednesday (May 19-20, 2009)
            9a.m. – 5p.m. PDT |  
          | Where: | Mandalay Bay Hotel – Las Vegas, NV |  
          | What: | Secure Virtualization Demonstration |  
          | Synopsis: | Green Hills Software will demonstrate the application of its Platform
                for Secure Networking on a standard reference design — the
                Fulcrum Microsystems "Vegas" 48-port 1-Gigabit Ethernet
                switch chip reference system. The Vegas reference platform consists
                of the Green Hills Platform for Secure Networking, including
                INTEGRITY, secure guest OS virtualization, GHNet™ IPv4/v6
                routing stack, and GateD® — the industry's
                benchmark solution for commercial-grade routing and switching
                software. Using Green Hills Software's secure virtualization
                architecture, a standard Linux operating system will execute
                on the Freescale MPC8548 general purpose processor of the Fulcrum
                reference platform, providing system management functionality
                and other services. Green Hills Software's INTEGRITY RTOS provides
                the secure isolation of the Linux environment from the real-time
                routing and packet processing functions, which execute as native
                INTEGRITY applications on the same general purpose processor.
                In addition, the ultra-fast interprocess communications (IPC)
                of the INTEGRITY RTOS enable the Linux and INTEGRITY applications
                to rapidly exchange management information. |  
          | To Attend: | Call or email Karen McConnell (+1 734-222-1644, kmcconnell@ghs.com)
            to confirm available meeting times and to get details on the Mandalay
            Bay suite number and location. |   About Green Hills SoftwareFounded in 1982, Green Hills Software, Inc. is the technology leader
        in device software optimization (DSO) and real-time operating systems
        (RTOS) for 32- and 64-bit embedded systems. In 2008, the Green Hills
        INTEGRITY-178B RTOS was the first and only operating system to be certified
        by the NSA to EAL6+ High Robustness, the highest level of security ever
        achieved. Our INTEGRITY® and velOSity™ real-time
        operating systems, µ-velOSity™ microkernel, compilers, IPv6-ready
        TCP/IP networking stacks, GateD® Layer 2 switching
        and Layer 3 routing, MULTI® and AdaMULTI™ integrated
        development environments, DoubleCheck™ integrated
        static analyzer and TimeMachine™ tool
        suite offer a complete development solution that addresses both deeply
        embedded and high-reliability applications. Green Hills Software is headquartered
        in Santa Barbara, CA, with European headquarters in the United Kingdom.
        Visit Green Hills Software at www.ghs.com.
   | 
  
    | North American Sales Contact:Green Hills Software, Inc.
 30 West Sola Street,
 Santa Barbara, CA 93101,
 Tel: 805-965-6044
 Fax: 805-965-6343
 Website: www.ghs.com
 Email: sales@ghs.com
 Media Contacts: Green Hills Software, Inc.
 Barbel French
 Tel: 805-965-6044
 Email: bfrench@ghs.com
 
 | International Sales Contact:Green Hills Software Ltd
 Fleming Business Centre
 Leigh Road
 Eastleigh
 Hampshire SO50 9PD
 UNITED KINGDOM
 Tel: +44 (0)2380 649660
 Fax: +44 (0)2380 649661
 Email: mktg-europe@ghs.com
 |