A look at AMD's Pacifica - part three

Posted on Friday, Jun 10 2005 @ 06:21 CEST by Thomas De Maesschalck
The Inquirer published the last part of its trilogy on AMD's virtualization technology. Here's a snip:
NESTED PAGE Tables (NPT) takes this a step further, and fully implements a virtualised CR3 in hardware. What NPT does is to give each guest its own CR3 that is loaded and saved on each VM entrance and exit. Since each guest has its own CR3 that is separate from the other guest's CR3s, it can do whatever it wants to the register, and the MMU works out the details in hardware.


About the Author

Thomas De Maesschalck

Thomas has been messing with computer since early childhood and firmly believes the Internet is the best thing since sliced bread. Enjoys playing with new tech, is fascinated by science, and passionate about financial markets. When not behind a computer, he can be found with running shoes on or lifting heavy weights in the weight room.



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