Processor Control Region

Processor Control Region (PCR) is a Windows kernel mode data structure that contains information about the current processor. It can be accessed via the fs segment register on x86 versions, or the gs segment register on x64 versions respectively.

Structure

In Windows, the PCR is known as KPCR. It contains information about the current processor.

Processor Control Block

The PCR contains a substructure called Processor Control Block (KPRCB), which contains information such as CPU step and a pointer to the thread object of the current thread.

See also

• Process Environment Block
• Process control block

References

• http://www.nirsoft.net/kernel_struct/vista/KPCR.html
• http://www.nirsoft.net/kernel_struct/vista/KPRCB.html

This article "Processor Control Region" is from Wikipedia. The list of its authors can be seen in its historical and/or the page Edithistory:Processor Control Region. Articles copied from Draft Namespace on Wikipedia could be seen on the Draft Namespace of Wikipedia and not main one.

📰 Article(s) of the same category(ies)

• Mailtraq
• QuickWin
• Help and Support Center
• Merge Module
• Program compatibility date range
• Microsoft Message Passing Interface
• Windows Installer CleanUp Utility

---