Dell LATITUDE D620 User Manual page 78

Dell - Latitude™ D620 - Printer-Friendly Format
The operating system code is executed
in Rings 1–3, causing faults
Intel split Ring 0 into Ring 0P and 0D. Ring OP contains the VMM, and Ring 0D contains the operating system code. The
result is a more stable platform that can run multiple operating systems simultaneously with fewer faults.
Printed 2/22/2010 11:17:19 AM
Expires 2/23/2010 11:17:19 AM
https://dcse.dell.com/SelfStudy/Foundations_2007/Foundations_2007_Portables/Portable...
With Intel's Virtualization Technology, a new ring
is created (0D) to run the operating system code
Latitude™ D620
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22/02/2010