Firmware Allocation of PCI Device Resources in Windows
Updated: October 26, 2006
File name: PCI-rsc.doc
About This Download
As the amount of system RAM, the number of PCI and PCIe devices in a system, and the size of memory resources that PCI devices require continue to increase, allocating sufficient memory resources below 4 GB becomes increasingly problematic. This paper describes how different versions of the Windows operating system handle PCI memory resource allocation, details the changes introduced with Windows Vista, and suggests strategies and best practices for system firmware designers to ensure that their platforms perform optimally on Window Vista and earlier versions of Microsoft Windows.
This information applies to the following operating systems:
In this white paper: