Jungo Announces WinDriver™ v7.00 for Linux WinDriver v7.00 for Linux offers enhanced support for x86 64-bit processors: AMD64 and Intel EM64T on Linux 2.6.x kernels. Support for Linux kernels 2.6.x is now also included in WinDriver Linux v7.00 for PowerPC processors.
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ClearSpeed and Jungo Use the AMD Opteron™ Processor Platform to Develop 64-Bit Linux Drivers Jungo and ClearSpeed Announced collaboration to offer the 64-bit version of WinDriver for Linux, optimized for the AMD Opteron™ Processor Platform.
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Support for 64-bit x86 Architectures on Linux Now Available The new 7.00 version of WinDriver for Linux supports driver development on the AMD64 and Intel Extended Memory 64 Technology (EM64T) x86 64-bit architectures (known as x86_64). The 64-bit architectures provide improved performance and larger run-time memory, rendering them ideal for development of high-performance and large, memory-consuming, applications, such as database and graphical applications.
For information regarding AMD64 click here.
For information regarding EM64T click here.

Tutorial: Correct Implementation of DMA and Memory Access in Windows NT Drivers This article, by the NT Insider, covers correct implementation of DMA and memory access in Windows NT drivers, including systems with more than 4GB of physical memory. Main issues discusses:
- x86 Platforms are not created equal and thus differ from each other.
- Use Hardware Abstraction Layer (HAL) and never assume anything about the actual layout of address space on an x86 system.
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http://www.osronline.com/article.cfm?id=178