WindowsKernelOverview.pdf

Windows Kernel Internals

Overview

*David B. Probert, Ph.D.

Windows Kernel Development

Microsoft Corporation

Contributors

Neill Clift

Adrian Marinescu

Nar Ganapathy

Jake Oshins

Andrew Ritz

Jonathan Schwartz

Mark Lucovsky

Samer Arafeh

Dan Lovinger

Landy Wang

David Solomon

Ben Leis

Brian Andrew

Jason Zions

Gerardo Bermudez

Dragos Sambotin

Arun Kishan

Adrian Oney

Windows History

• Team formed in November 1988

• Less than 20 people

• Build from the ground up

– Advanced Operating System

– Designed for desktops and servers

– Secure, scalable SMP design

– All new code

• Rigorous discipline – developers wrote very detailed

design docs, reviewed/discussed each others docs and

wrote unit tests

Goals of the NT System

• Reliability – Nothing should be able to crash the

OS. Anything that crashes the OS is a bug and

we won’t ship until it is fixed

• Security – Built into the design from day one

• Portability – Support more than one processor,

avoid assembler, abstract HW dependencies.

• Extensibility – Ability to extend the OS over time

• Compatibility – Apps must run

• Performance – All of the above are more

important than raw speed!

Windows Architecture

Applications

Subsystem

servers

DLLs

System Services

Kernel32

Critical services

User32 / GDI

User-mode

ntdll / run-time library

Kernel-mode

Trap interface / LPC

Security refmon

IO Manager

Virtual memory

Procs & threads

Win32 GUI

File filters

File systems

Volume mgrs

Device stacks

FS run-time

Scheduler

Cache mgr

exec synchr

Object Manager / Configuration Management

Kernel run-time / Hardware Adaptation Layer

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