Virtualization platform supports ARMv6

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Jun. 20, 2007

Trango has added support for ARM Ltd.'s ARMv6 CPU architecture to its virtualization platform for embedded systems and mobile devices. The company says that this update to its "Hypervisor" was motivated by customer requirements for enhanced connectivity, richer multimedia content, and increased security capabilities, while meeting tight cost constraints.

Trango says that on the ARMv6 architecture, its Hypervisor allows an MMU-enabled ARM11 family processor to run up to 256 "virtual processors" securely and simultaneously. Each virtual processor can execute a rich operating system, such as Windows CE or Linux; a real-time operating system; or a standalone driver or application.

According to ARM, the ARMv6 instruction set architecture (ISA) features a number of improvements over earlier ARM ISAs, including memory system enhancements, improved exception handling, and better support for multiprocessing environments. v6 also includes multimedia instructions that offer Single Instruction Multiple Data (SIMD) execution, and are optimized for a broad range of A/V codecs and offer claimed performance increases of up to four times. ARMv6 family processors include the ARM1136J(F)-S, ARM1156T2(F)-S, and ARM1176JZ(F)-S, among others.

Trango lists several benefits of using its Hypervisor, including:

Isolating proprietary code from code released under the GPL (GNU General Public License) or other open-source licenses -- software in different partitions behaves as though on separate processors, the company claims
Running a "rich OS" such as Windows CE or Linux in parallel with performance- or security-critical applications and services, such as DRM, with the latter being "fully isolated and protected against hardware and software attacks"
Leveraging the enhanced performance of an ARMv6 CPU core, by integrating functions traditionally executed on two or more processors onto a single processor

NTT DoCoMo OSTI profile using Hypervisor
Source: Trango
Trango claims its Hypervisor enables smartphone designers to create smartphones that have BOM (bill of materials) costs comparable to those of typical feature phones, by integrating both baseband/modem and application processing functions onto a single processor.

Trango expects to release the new version of Hypervisor with support for ARM's ARMv6 architecture next month. The software currently runs on ARMv5, MIPS32, and MIPS64 processors.

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