WhitePaper: Configuration Examples and Troubleshooting for VMDirectPath

by Patrick Redknap on December 28, 2010

While reading through articles on Virtualization.info today I came across this article detailing the release of a new VMware whitepaper.

The paper is called “Configuration Examples and Troubleshooting for VMDirectPath“, and details over 5 pages configuration examples on how to configure direct access to an I/O device within ESX using VMDirectPath (VMDirectPath allows you to connect up to two passthrough devices to a virtual machine improving performance for ESX systems that utilize high-speed I/O devices.).
The paper also documents the steps needed to enable VMDirectPath, by enabling the functionality in the BIOS, verifying that IOMMU is enabled within ESX and editing the VMX file for advanced configuration. The paper also details some potential problems, like device assignment dependencies, virtual IRQ sharing and physical IRQ sharing.

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