Android Solutions
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Android Solutions © 2009 Open Kernel Labs, Inc. All rights reserved. This presentation has been prepared by Open Kernel Labs (OK). It contains certain proprietary and confidential information about OK’s core competencies, personnel, and product offerings. OK does not authorize its dissemination in whole or in part to any unauthorized parties, potential partners or competitors.
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Transcript of Android Solutions
Android Solutions
© 2009 Open Kernel Labs, Inc. All rights reserved. This presentation has been prepared by Open Kernel Labs (OK). It contains certain proprietary and confidential information about OK’s core competencies, personnel, and product offerings. OK does not authorize its dissemination in whole or in part to any unauthorized parties, potential partners or competitors.
> World’s leading provider of mobile phone virtualization solutions > Founded in 2006 following 15+ years R&D; > $25MM invested > Delivers OKL4 Microvisor; in more than 300 million devices > IP commercialization with National ICT Australia > OK developer community surpasses 1,000 members > Solutions for Android, Symbian, Linux, and more > Growing mobile-to-enterprise market with investor/partner Citrix
© 2009 Open Kernel Labs, Inc. All rights reserved. ok-labs.com
Open Kernel Labs Mobile Virtualization –
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2009 Finalist
Open Kernel Labs is the global leader in open source virtualization software for mobile devices, consumer electronics, and embedded systems. Backed by the largest, independent team of microkernel developers, the OKL4 embedded hypervisor is deployed on more than 300 million mobile phones worldwide. Semiconductor suppliers, handset OEMs, and mobile network operators depend on OK Labs to deliver high performance solutions that decrease BOM cost, reduce complexity, and speed time-to-market.
What is Mobile Virtualization? OKL4 Microvisor with Secure HyperCell Technology > Goes well beyond the classical hypervisor
model
> Enables virtualization and componentization • VM = OS plus its applications in a cell • Lightweight execution environments • Drivers • HW enforced isolation between cells
> Control over communication between cells • Required for mandatory access control
> Fast context switching and high performance inter-cell communication
> Highly trustworthy privileged code • Small, clean, open source
© 2009 Open Kernel Labs, Inc. All rights reserved.
Secure HyperCell Technology
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© 2009 Open Kernel Labs, Inc. All rights reserved.
> : a truly game-changing platform for mobile devices • Complete set of software: operating system, middleware, key applications • Completely open for end users and developers • Feature-rich software development kit and open App Market
> Significant opportunity! But significant challenges • How to integrate such an all-encompassing platform? • How to maintain existing development and technology investment? • How to differentiate?
> The Solution is OK:Android
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The Android Revolution – OK:Android
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© 2009 Open Kernel Labs, Inc. All rights reserved.
> In OK:Android, OK Labs supplies an OS support package for Android, enabled for use as a guest OS of the OKL4 mobile virtualization platform. OK:Android simplifies and streamlines the process of creating new Android phones
> OK:Android provides a standard Android environment, where existing Android applications can run without modification and new applications can be developed using standard Android development tools
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OK:Android – Architecture
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Privileged
De-privileged
Android Middleware
Application Software Baseband
Software
Android Linux Kernel
RTOS
Legacy Components
Example: Multimedia Framework
ARM Processor
OKL4 Microvisor
© 2009 Open Kernel Labs, Inc. All rights reserved.
> Using OK:Android to create a virtual machine (VM) with an Android guest OS adds to the benefits associated with the use of Android in the following ways:
• Android applications can run on the same processor side by side with legacy applications and legacy OSes. This co-location eliminates the need for either multiprocessor hardware or porting the legacy system to Android.
• OKL4 native cells can complement the Android VM by providing an execution environment with better real-time properties and stronger security.
• OKL4 native cells are well-suited to hosting real-time OSes, easing implementation of latency-sensitive functions without sacrificing the rich ecosystem support available for Android.
• The OKL4 Microvisor makes it possible to dynamically and efficiently utilize system resources such as computing power, electrical power, and memory on single core and multicore designs.
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OK:Android – Solutions
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> Microvisor partitions and multiplexes hardware between guests
> Microvisor is in complete control of all resources • Completely abstracts SoC implementation from
OKL4 kernel
> Virtual machines access virtual resources • Mapped to physical resources by microvisor
> Guest OS executes at lesser privilege • Only microvisor runs in most privileged mode • Essential to ensure microvisor has control over
resources • Guest OS should not run in the most privileged
mode
• Microvisor schedules virtual machines • Performs world switch between VMs • Each guest OS schedules its apps
© 2009 Open Kernel Labs, Inc. All rights reserved.
RAM
Privileged
De-privileged
OKL4 Microvisor Memory Region Memory Region
Guest OS
Applications
Virtual RAM
Guest OS
Applications
Virtual RAM
VM 1 VM 2
Virtualizing Android: The role of the Microvisor
Secure HyperCell Technology
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> Minimally-invasive paravirtualization • Introduces the OKL4 architecture to the Linux/arch
directory (roughly 8 kLOC) • No modifications to architecture-independent Linux
> OKL4 is the only software in privileged mode • Receives interrupts, syscalls, and exceptions • “Trampolines” to Linux using IPC • OKL4 architecture in Linux just decodes IPC • Past that point, it’s just standard Linux
> All Linux applications (including Android middleware) are fully binary compatible
> OK:Android is distributed as a simple patch against a kernel.org kernel tree
• Simple to virtualize any Linux distribution
© 2009 Open Kernel Labs, Inc. All rights reserved.
Virtualizing Android: The paravirtualization approach
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Syscall delivered via “Trampolined” IPC
Privileged
De-privileged
OKL4 Microvisor
Android Middleware
Applications
Android Linux Kernel
ARM Processor
OKL4 Architecture
IPC
Syscall
> Similar paravirtualization approach for communications RTOS
> OKL4 is fully real-time capable • Will maintain all RTOS RT guarantees • Example: < 3us interrupt delivery on all
platforms
> Maintain the same API for application stack to use
• Simply implement a small translation layer using IPC
> Typical effort: one engineer-week
> Several RTOSes already exist
© 2009 Open Kernel Labs, Inc. All rights reserved.
Virtualizing the Communications Stack
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Privileged
De-privileged
OKL4 Microvisor
Communications Applications
RTOS
ARM Processor
OKL4 Architecture
Syscall delivered via “Trampolined” IPC
API Communications API delivered via IPC
IPC
Syscall
© 2009 Open Kernel Labs, Inc. All rights reserved.
> The OKL4 Microvisor creates systems that are easier to develop, easier to maintain, more secure, and more reliable. The OKL4 building block approach combines, connects, and manages VMs, native OKL4 subsystems, and device drivers.
> OK:Android adds ready-to-use Android VMs to the standard set of building blocks available to developers.
> For a more detailed explanation of benefits and uses, watch the webinar Android Migration at the Speed of Light with Rob McCammon
> Contact [email protected] or call +1 312 924 1445 for more information
ok-labs.com
Conclusion
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Rob McCammon Vice President, Product Management [email protected] +1 312 924 1445
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