Virtualization. Pradipta De
|
|
- Shavonne Payne
- 6 years ago
- Views:
Transcription
1 Virtualization Pradipta De
2 Today s Topic Virtualization Basics System Virtualization Techniques CSE506: Ext Filesystem 2
3 Virtualization? A virtual machine (VM) is an emulation of a particular computer system Why is it useful? Server Workload Consolidation Security and isolation Migration Executing legacy software systems A virtual machine is implemented as a combination of a real machine and virtualizing software. What does the virtualizing software virtualize?
4 Basic Definitions Process Perspective System Perspective Application Binary Interface Instruction Set Architecture (ISA) interface
5 Process Virtual Machine Process Virtual Machine: Process VM can support the execution of a process developed for a different OS and a different ISA Virtualizing software placed at ABI interface, and emulates user level instructions and OS calls. A guest program developed for a machine (ISA and OS) other than the user s host system can be used in the same way as all other programs in the host system
6 System Virtual Machine System Virtual Machine: System VM provides a complete system environment Virtualizing software emulates the hardware ISA so that conventional software sees a different ISA than the one supported by hardware. The virtualizing software is often referred to as virtual machine monitor (VMM) or hypervisor.
7 Types of Process VMs Multiprogramming OS provides a replicated process level VM for each of concurrently executing applications Emulators and Dynamic Binary Translators Support program binaries compiled to a different ISA to run on a host with different ISA Interpretation: fetches, decodes and emulates the execution of each instruction Binary translation: blocks of source program are translated into target instructions
8 Types of Process VMs Conventional System HLL VM Environment High level language VM Designed to minimize dependence on hardware and OS specific features Uses an abstract ISA to generate intermediate code
9 System VM on same ISA Classic VM Architecture: Type-I VMM runs on H/W Good performance VMware ESXi Hosted VM Architecture: Type-II VMM runs on host OS Ease of installation VMware Workstation
10 Taxonomy
11 Another taxonomy The focus is on different system virtualization techniques Source:
12 History of Virtual Machine 1970s: for running multiple single user OS on IBM mainframes Drop in hardware cost, and development of multi-user OS loss in interest for VM How did the classical VM technology work? It used full virtualization supported by hardware ( trap-and-emulate technique) What virtualization techniques are commonly used since VMware re-introduced virtualization?
13 Which resources are virtualized? Processor Ex: Register states Memory Ex: Page tables I/O devices, platform, peripherals Disk, network interface Interrupt controller, timer, bus
14 Processor Virtualization (1/4) Trap-and-Emulate Guest OS runs in unprivileged state, while VMM is in privileged state Privileged instructions in guest OS traps to VMM VMM emulates the execution on real hardware Unprivileged instructions can run directly on the processor (called direct execution) Does all architectures support trap on privileged instructions when executed from unprivileged state? Many modern architectures do not, including x86
15 Processor Virtualization (2/4) Binary Translation Replace instructions that do not trap with trap instruction VMM emulates original instruction in trap handler Use Dynamic Binary translation Translate till the next jmp instruction
16 Processor Virtualization (3/4) Paravirtualization Guest OS kernel makes explicit calls to the VMM Modify OS kernel to replace non-virtualizable instructions with hypercalls Hypercalls are interfaces to the hypervisor Poor compatibility and portability since OS is modified Xen is an example of paravirtualization
17 Processor Virtualization (4/4) Hardware Assisted Virtualization Hardware support for virtualization increasing Intel-VT and AMD-V allows new CPU execution mode where VMM runs in a more privileged state (special root mode) than CPL=0 Privileged and sensitive calls automatically trap to VMM Kernel Virtual Machines (KVM) uses hardware assisted virtualization
18 Processor Virtualization Summary Binary Translation Paravirtualization Hardware Assisted
19 Memory Virtualization Address Translation Guest virtual address (virtual address) Guest Physical address (physical address) Guest Physical address Host Physical Address (machine address) VMM manages physical memory by swapping guest real pages into and out of its own swap space Shadow page tables maintained by VMM to reduce one level of address translation Virtual <--> machine
20 Putting It Together Virtualization Terminology and Background Virtualization Techniques CSE506: Ext Filesystem 20
The Challenges of X86 Hardware Virtualization. GCC- Virtualization: Rajeev Wankar 36
The Challenges of X86 Hardware Virtualization GCC- Virtualization: Rajeev Wankar 36 The Challenges of X86 Hardware Virtualization X86 operating systems are designed to run directly on the bare-metal hardware,
More informationThe Architecture of Virtual Machines Lecture for the Embedded Systems Course CSD, University of Crete (April 29, 2014)
The Architecture of Virtual Machines Lecture for the Embedded Systems Course CSD, University of Crete (April 29, 2014) ManolisMarazakis (maraz@ics.forth.gr) Institute of Computer Science (ICS) Foundation
More informationLearning Outcomes. Extended OS. Observations Operating systems provide well defined interfaces. Virtual Machines. Interface Levels
Learning Outcomes Extended OS An appreciation that the abstract interface to the system can be at different levels. Virtual machine monitors (VMMs) provide a lowlevel interface An understanding of trap
More informationVirtual Machines. Jinkyu Jeong Computer Systems Laboratory Sungkyunkwan University
Virtual Machines Jinkyu Jeong (jinkyu@skku.edu) Computer Systems Laboratory Sungkyunkwan University http://csl.skku.edu Today's Topics History and benefits of virtual machines Virtual machine technologies
More informationVirtual Machines. Part 2: starting 19 years ago. Operating Systems In Depth IX 1 Copyright 2018 Thomas W. Doeppner. All rights reserved.
Virtual Machines Part 2: starting 19 years ago Operating Systems In Depth IX 1 Copyright 2018 Thomas W. Doeppner. All rights reserved. Operating Systems In Depth IX 2 Copyright 2018 Thomas W. Doeppner.
More informationVirtualization. Virtualization
Virtualization Virtualization Memory virtualization Process feels like it has its own address space Created by MMU, configured by OS Storage virtualization Logical view of disks connected to a machine
More informationreferences Virtualization services Topics Virtualization
references Virtualization services Virtual machines Intel Virtualization technology IEEE xplorer, May 2005 Comparison of software and hardware techniques for x86 virtualization ASPLOS 2006 Memory resource
More informationModule 1: Virtualization. Types of Interfaces
Module 1: Virtualization Virtualization: extend or replace an existing interface to mimic the behavior of another system. Introduced in 1970s: run legacy software on newer mainframe hardware Handle platform
More informationCloud Computing Virtualization
Cloud Computing Virtualization Anil Madhavapeddy anil@recoil.org Contents Virtualization. Layering and virtualization. Virtual machine monitor. Virtual machine. x86 support for virtualization. Full and
More informationCOMPUTER ARCHITECTURE. Virtualization and Memory Hierarchy
COMPUTER ARCHITECTURE Virtualization and Memory Hierarchy 2 Contents Virtual memory. Policies and strategies. Page tables. Virtual machines. Requirements of virtual machines and ISA support. Virtual machines:
More informationAn overview of virtual machine architecture
An overview of virtual machine architecture Outline History Standardized System Components Virtual Machine Basics Process VMs System VMs Virtualizing Process Summary and Taxonomy History In ancient times:
More informationSpring 2017 :: CSE 506. Introduction to. Virtual Machines. Nima Honarmand
Introduction to Virtual Machines Nima Honarmand Virtual Machines & Hypervisors Virtual Machine: an abstraction of a complete compute environment through the combined virtualization of the processor, memory,
More informationChapter 5 C. Virtual machines
Chapter 5 C Virtual machines Virtual Machines Host computer emulates guest operating system and machine resources Improved isolation of multiple guests Avoids security and reliability problems Aids sharing
More informationVirtualization. Operating Systems, 2016, Meni Adler, Danny Hendler & Amnon Meisels
Virtualization Operating Systems, 2016, Meni Adler, Danny Hendler & Amnon Meisels 1 What is virtualization? Creating a virtual version of something o Hardware, operating system, application, network, memory,
More informationOS Virtualization. Why Virtualize? Introduction. Virtualization Basics 12/10/2012. Motivation. Types of Virtualization.
Virtualization Basics Motivation OS Virtualization CSC 456 Final Presentation Brandon D. Shroyer Types of Virtualization Process virtualization (Java) System virtualization (classic, hosted) Emulation
More informationIntroduction to Virtual Machines
Introduction to Virtual Machines abstraction and interfaces virtualization Vs. abstraction computer system architecture process virtual machines system virtual machines Abstraction Abstraction is a mechanism
More informationSystem Virtual Machines
System Virtual Machines Outline Need and genesis of system Virtual Machines Basic concepts User Interface and Appearance State Management Resource Control Bare Metal and Hosted Virtual Machines Co-designed
More informationCS5460: Operating Systems. Lecture: Virtualization. Anton Burtsev March, 2013
CS5460: Operating Systems Lecture: Virtualization Anton Burtsev March, 2013 Traditional operating system Virtual machines A bit of history Virtual machines were popular in 60s-70s Share resources of mainframe
More informationOverview of System Virtualization: The most powerful platform for program analysis and system security. Zhiqiang Lin
CS 6V81-05: System Security and Malicious Code Analysis Overview of System Virtualization: The most powerful platform for program analysis and system security Zhiqiang Lin Department of Computer Science
More informationSystem Virtual Machines
System Virtual Machines Outline Need and genesis of system Virtual Machines Basic concepts User Interface and Appearance State Management Resource Control Bare Metal and Hosted Virtual Machines Co-designed
More informationVirtualization and Virtual Machines. CS522 Principles of Computer Systems Dr. Edouard Bugnion
Virtualization and Virtual Machines CS522 Principles of Computer Systems Dr. Edouard Bugnion Virtualization and Virtual Machines 2 This week Introduction, definitions, A short history of virtualization
More informationVirtualization and memory hierarchy
Virtualization and memory hierarchy Computer Architecture J. Daniel García Sánchez (coordinator) David Expósito Singh Francisco Javier García Blas ARCOS Group Computer Science and Engineering Department
More informationConcepts. Virtualization
Concepts Virtualization Concepts References and Sources James Smith, Ravi Nair, The Architectures of Virtual Machines, IEEE Computer, May 2005, pp. 32-38. Mendel Rosenblum, Tal Garfinkel, Virtual Machine
More informationCS 550 Operating Systems Spring Introduction to Virtual Machines
CS 550 Operating Systems Spring 2018 Introduction to Virtual Machines 1 How to share a physical computer Operating systems allows multiple processes/applications to run simultaneously Via process/memory
More information24-vm.txt Mon Nov 21 22:13: Notes on Virtual Machines , Fall 2011 Carnegie Mellon University Randal E. Bryant.
24-vm.txt Mon Nov 21 22:13:36 2011 1 Notes on Virtual Machines 15-440, Fall 2011 Carnegie Mellon University Randal E. Bryant References: Tannenbaum, 3.2 Barham, et al., "Xen and the art of virtualization,"
More informationOperating Systems 4/27/2015
Virtualization inside the OS Operating Systems 24. Virtualization Memory virtualization Process feels like it has its own address space Created by MMU, configured by OS Storage virtualization Logical view
More informationΠποχωπημένη Κατανεμημένη Υπολογιστική
Πποχωπημένη Κατανεμημένη Υπολογιστική ΗΥ623 Διδάζκων Δημήηριος Καηζαρός @ Τμ. ΗΜΜΥ Πανεπιστήμιο Θεσσαλίαρ Διάλεξη 3η 1 Virtualization Concepts Definitions Virtualization A layer mapping its visible interface
More informationNested Virtualization and Server Consolidation
Nested Virtualization and Server Consolidation Vara Varavithya Department of Electrical Engineering, KMUTNB varavithya@gmail.com 1 Outline Virtualization & Background Nested Virtualization Hybrid-Nested
More informationIntroduction to Virtual Machines. Carl Waldspurger (SB SM 89 PhD 95) VMware R&D
Introduction to Virtual Machines Carl Waldspurger (SB SM 89 PhD 95) VMware R&D Overview Virtualization and VMs Processor Virtualization Memory Virtualization I/O Virtualization Typesof Virtualization Process
More informationLinux and Xen. Andrea Sarro. andrea.sarro(at)quadrics.it. Linux Kernel Hacking Free Course IV Edition
Linux and Xen Andrea Sarro andrea.sarro(at)quadrics.it Linux Kernel Hacking Free Course IV Edition Andrea Sarro (andrea.sarro(at)quadrics.it) Linux and Xen 07/05/2008 1 / 37 Introduction Xen and Virtualization
More informationVirtualization. Starting Point: A Physical Machine. What is a Virtual Machine? Virtualization Properties. Types of Virtualization
Starting Point: A Physical Machine Virtualization Based on materials from: Introduction to Virtual Machines by Carl Waldspurger Understanding Intel Virtualization Technology (VT) by N. B. Sahgal and D.
More informationVirtual Machine Security
Virtual Machine Security CSE443 - Spring 2012 Introduction to Computer and Network Security Professor Jaeger www.cse.psu.edu/~tjaeger/cse443-s12/ 1 Operating System Quandary Q: What is the primary goal
More informationVirtual machine architecture and KVM analysis D 陳彥霖 B 郭宗倫
Virtual machine architecture and KVM analysis D97942011 陳彥霖 B96902030 郭宗倫 Virtual machine monitor serves as an interface between hardware and software; no matter what kind of hardware under, software can
More informationI/O and virtualization
I/O and virtualization CSE-C3200 Operating systems Autumn 2015 (I), Lecture 8 Vesa Hirvisalo Today I/O management Control of I/O Data transfers, DMA (Direct Memory Access) Buffering Single buffering Double
More informationVirtualization. ! Physical Hardware Processors, memory, chipset, I/O devices, etc. Resources often grossly underutilized
Starting Point: A Physical Machine Virtualization Based on materials from: Introduction to Virtual Machines by Carl Waldspurger Understanding Intel Virtualization Technology (VT) by N. B. Sahgal and D.
More informationECE 331 Hardware Organization and Design. UMass ECE Discussion 11 4/12/2018
ECE 331 Hardware Organization and Design UMass ECE Discussion 11 4/12/2018 Today s Discussion Topics Hamming Codes For error detection and correction Virtual Machines Virtual Memory The Hamming SEC Code
More informationCSCI 8530 Advanced Operating Systems. Part 19 Virtualization
CSCI 8530 Advanced Operating Systems Part 19 Virtualization Virtualization This is a very old idea It appears in many different forms A variety of commercial products exist The idea has become hot again
More informationCSE 120 Principles of Operating Systems
CSE 120 Principles of Operating Systems Spring 2018 Lecture 16: Virtual Machine Monitors Geoffrey M. Voelker Virtual Machine Monitors 2 Virtual Machine Monitors Virtual Machine Monitors (VMMs) are a hot
More informationCS 350 Winter 2011 Current Topics: Virtual Machines + Solid State Drives
CS 350 Winter 2011 Current Topics: Virtual Machines + Solid State Drives Virtual Machines Resource Virtualization Separating the abstract view of computing resources from the implementation of these resources
More informationIntroduction to Virtual Machines. Michael Jantz
Introduction to Virtual Machines Michael Jantz Acknowledgements Slides adapted from Chapter 1 in Virtual Machines: Versatile Platforms for Systems and Processes by James E. Smith and Ravi Nair Credit to
More informationCSC 5930/9010 Cloud S & P: Virtualization
CSC 5930/9010 Cloud S & P: Virtualization Professor Henry Carter Fall 2016 Recap Network traffic can be encrypted at different layers depending on application needs TLS: transport layer IPsec: network
More informationVirtualization. Michael Tsai 2018/4/16
Virtualization Michael Tsai 2018/4/16 What is virtualization? Let s first look at a video from VMware http://www.vmware.com/tw/products/vsphere.html Problems? Low utilization Different needs DNS DHCP Web
More informationChapter 5 B. Large and Fast: Exploiting Memory Hierarchy
Chapter 5 B Large and Fast: Exploiting Memory Hierarchy Dependability 5.5 Dependable Memory Hierarchy Chapter 6 Storage and Other I/O Topics 2 Dependability Service accomplishment Service delivered as
More informationCSE 237B Fall 2009 Virtualization, Security and RTOS. Rajesh Gupta Computer Science and Engineering University of California, San Diego.
CSE 237B Fall 2009 Virtualization, Security and RTOS Rajesh Gupta Computer Science and Engineering University of California, San Diego. Overview What is virtualization? Types of virtualization and VMs
More informationCLOUD COMPUTING IT0530. G.JEYA BHARATHI Asst.Prof.(O.G) Department of IT SRM University
CLOUD COMPUTING IT0530 G.JEYA BHARATHI Asst.Prof.(O.G) Department of IT SRM University What is virtualization? Virtualization is way to run multiple operating systems and user applications on the same
More informationIntroduction to Cloud Computing and Virtualization. Mayank Mishra Sujesha Sudevalayam PhD Students CSE, IIT Bombay
Introduction to Cloud Computing and Virtualization By Mayank Mishra Sujesha Sudevalayam PhD Students CSE, IIT Bombay Talk Layout Cloud Computing Need Features Feasibility Virtualization of Machines What
More information1 Virtualization Recap
1 Virtualization Recap 2 Recap 1 What is the user part of an ISA? What is the system part of an ISA? What functionality do they provide? 3 Recap 2 Application Programs Libraries Operating System Arrows?
More informationCS370 Operating Systems
CS370 Operating Systems Colorado State University Yashwant K Malaiya Fall 2017 Lecture 27 Virtualization Slides based on Various sources 1 1 Virtualization Why we need virtualization? The concepts and
More informationVirtual Machines. To do. q VM over time q Implementation methods q Hardware features supporting VM q Next time: Midterm?
Virtual Machines To do q VM over time q Implementation methods q Hardware features supporting VM q Next time: Midterm? *Partially based on notes from C. Waldspurger, VMware, 2010 and Arpaci-Dusseau s Three
More informationCHAPTER 16 - VIRTUAL MACHINES
CHAPTER 16 - VIRTUAL MACHINES 1 OBJECTIVES Explore history and benefits of virtual machines. Discuss the various virtual machine technologies. Describe the methods used to implement virtualization. Show
More informationVirtual Machine Virtual Machine Types System Virtual Machine: virtualize a machine Container: virtualize an OS Program Virtual Machine: virtualize a process Language Virtual Machine: virtualize a language
More informationServer Virtualization Approaches
Server Virtualization Approaches Virtual Machine Applications Emulation Replication Composition Emulation: Mix-and-match cross-platform portability Replication: Multiple VMs on single platform Composition:
More informationCS-580K/480K Advanced Topics in Cloud Computing. VM Virtualization II
CS-580K/480K Advanced Topics in Cloud Computing VM Virtualization II 1 How to Build a Virtual Machine? 2 How to Run a Program Compiling Source Program Loading Instruction Instruction Instruction Instruction
More informationVirtualization History and Future Trends
Virtualization History and Future Trends Christoffer Dall - Candidacy Exam - January 2013 Columbia University - Computer Science Department IBM Mainframe VMs VMware Workstation x86 Hardware Support Virtual
More informationCSCE 410/611: Virtualization!
CSCE 410/611: Virtualization! Definitions, Terminology! Why Virtual Machines?! Mechanics of Virtualization! Virtualization of Resources (Memory)! Some slides made available Courtesy of Gernot Heiser, UNSW.!
More informationVirtualization. Dr. Yingwu Zhu
Virtualization Dr. Yingwu Zhu Virtualization Definition Framework or methodology of dividing the resources of a computer into multiple execution environments. Types Platform Virtualization: Simulate a
More informationVirtual Machines. Virtual Machines
Virtual Machines Virtual Machines What is a virtual machine? Examples? Benefits? 1 Virtualization Creation of an isomorphism that maps a virtual guest system to a real host: Maps guest state S to host
More informationCS370: Operating Systems [Spring 2017] Dept. Of Computer Science, Colorado State University
Frequently asked questions from the previous class survey CS 370: OPERATING SYSTEMS [VIRTUALIZATION] Shrideep Pallickara Computer Science Colorado State University CPU vs Disk I/O contention Local/Global:
More informationCSCE 410/611: Virtualization
CSCE 410/611: Virtualization Definitions, Terminology Why Virtual Machines? Mechanics of Virtualization Virtualization of Resources (Memory) Some slides made available Courtesy of Gernot Heiser, UNSW.
More informationVirtualization. Darren Alton
Virtualization Darren Alton A brief introduction... In general, virtualization means emulating computer hardware* with software**. Virtual machine (VM) can mean a couple of things: A process virtual machine
More informationIntroduction to Virtualization
Introduction to Virtualization Reference Virtual Machines: Versatile Platforms for Systems and Processes by Jim Smith, Ravi Nair Publisher: Morgan Kaufmann (2005) ISBN-10: 1558609105-2- Abstraction Computer
More informationVirtualization (II) SPD Course 17/03/2010 Massimo Coppola
Virtualization (II) SPD Course 17/03/2010 Massimo Coppola The players The Hypervisor (HV) implements the virtual machine emulation to run a Guest OS Provides resources and functionalities to the Guest
More informationLIA. Large Installation Administration. Virtualization
LIA Large Installation Administration Virtualization 2 Virtualization What is Virtualization "a technique for hiding the physical characteristics of computing resources from the way in which other systems,
More informationLecture 4: Extensibility (and finishing virtual machines) CSC 469H1F Fall 2006 Angela Demke Brown
Lecture 4: Extensibility (and finishing virtual machines) CSC 469H1F Fall 2006 Angela Demke Brown Announcements First assignment out tomorrow Today s tutorial looks at some of the tools you will need to
More informationMechanisms and constructs for System Virtualization
Mechanisms and constructs for System Virtualization Content Outline Design goals for virtualization General Constructs for virtualization Virtualization for: System VMs Process VMs Prevalent trends: Pros
More informationVirtual Machines Disco and Xen (Lecture 10, cs262a) Ion Stoica & Ali Ghodsi UC Berkeley February 26, 2018
Virtual Machines Disco and Xen (Lecture 10, cs262a) Ion Stoica & Ali Ghodsi UC Berkeley February 26, 2018 Today s Papers Disco: Running Commodity Operating Systems on Scalable Multiprocessors, Edouard
More informationVirtual Machine Monitors!
ISA 673 Operating Systems Security Virtual Machine Monitors! Angelos Stavrou, George Mason University! Virtual Machine Monitors 2! Virtual Machine Monitors (VMMs) are everywhere! Industry commitment! Software:
More informationVirtual Virtual Memory
Virtual Virtual Memory Jason Power 3/20/2015 With contributions from Jayneel Gandhi and Lena Olson 4/17/2015 UNIVERSITY OF WISCONSIN 1 Virtual Machine History 1970 s: VMMs 1997: Disco 1999: VMWare (binary
More informationVirtualization. Part 1 Concepts & XEN
Part 1 Concepts & XEN Concepts References and Sources James Smith, Ravi Nair, The Architectures of Virtual Machines, IEEE Computer, May 2005, pp. 32-38. Mendel Rosenblum, Tal Garfinkel, Virtual Machine
More informationCOS 318: Operating Systems. Virtual Machine Monitors
COS 318: Operating Systems Virtual Machine Monitors Prof. Margaret Martonosi Computer Science Department Princeton University http://www.cs.princeton.edu/courses/archive/fall11/cos318/ Announcements Project
More informationCIS Operating Systems CPU Mode. Professor Qiang Zeng Spring 2018
CIS 3207 - Operating Systems CPU Mode Professor Qiang Zeng Spring 2018 CPU Modes Two common modes Kernel mode The CPU has to be in this mode to execute the kernel code User mode The CPU has to be in this
More informationVIRTUALIZATION: IBM VM/370 AND XEN
1 VIRTUALIZATION: IBM VM/370 AND XEN CS6410 Hakim Weatherspoon IBM VM/370 Robert Jay Creasy (1939-2005) Project leader of the first full virtualization hypervisor: IBM CP-40, a core component in the VM
More informationCOLORADO, USA; 2 Usov Aleksey Yevgenyevich - Technical Architect, RUSSIAN GOVT INSURANCE, MOSCOW; 3 Kropachev Artemii Vasilyevich Manager,
MAIN ASPECTS OF THE MODERN INFORMATION SYSTEMS HARDWARE RESOURCES VIRTUALIZATION METHODOLOGY Zuev D.O. 1, Usov A.Y. 2, Kropachev A.V. 3, Mostovshchikov D.N. 4 1 Zuev Denis Olegovich - Independent Consultant,
More informationECE331: Hardware Organization and Design
ECE331: Hardware Organization and Design Lecture 28: System Dependability, Error Correction Codes and Virtual Machines Adapted from Computer Organization and Design, Patterson & Hennessy, UCB Overview
More informationLINUX Virtualization. Running other code under LINUX
LINUX Virtualization Running other code under LINUX Environment Virtualization Citrix/MetaFrame Virtual desktop under Windows NT. aka Windows Remote Desktop Protocol VNC, Dameware virtual console. XWindows
More informationVirtual Machine Monitors (VMMs) are a hot topic in
CSE 120 Principles of Operating Systems Winter 2007 Lecture 16: Virtual Machine Monitors Keith Marzullo and Geoffrey M. Voelker Virtual Machine Monitors Virtual Machine Monitors (VMMs) are a hot topic
More informationAdvanced Operating Systems (CS 202) Virtualization
Advanced Operating Systems (CS 202) Virtualization Virtualization One of the natural consequences of the extensibility research we discussed What is virtualization and what are the benefits? 2 Virtualization
More informationBjörn Döbel. Microkernel-Based Operating Systems. Exercise 3: Virtualization
Faculty of Computer Science Institute for System Architecture, Operating Systems Group Björn Döbel Microkernel-Based Operating Systems Exercise 3: Virtualization Emulation Virtualization Emulation / Simulation
More informationW4118: virtual machines
W4118: virtual machines Instructor: Junfeng Yang References: Modern Operating Systems (3 rd edition), Operating Systems Concepts (8 th edition), previous W4118, and OS at MIT, Stanford, and UWisc Virtual
More informationA Survey on Virtualization Technologies
A Survey on Virtualization Technologies Virtualization is HOT Microsoft acquires Connectix Corp. EMC acquires VMware Veritas acquires Ejascent IBM, already a pioneer Sun working hard on it HP picking up
More informationVirtualization. Application Application Application. MCSN - N. Tonellotto - Distributed Enabling Platforms OPERATING SYSTEM OPERATING SYSTEM
Virtualization lication lication lication lication lication lication OPERATING SYSTEM OPERATING SYSTEM VIRTUALIZATION 1 Basic Idea Observation Hardware resources are typically under-utilized Hardware resources
More informationLecture 5: February 3
CMPSCI 677 Operating Systems Spring 2014 Lecture 5: February 3 Lecturer: Prashant Shenoy Scribe: Aditya Sundarrajan 5.1 Virtualization Virtualization is a technique that extends or replaces an existing
More informationVirtual Memory. Lecture for CPSC 5155 Edward Bosworth, Ph.D. Computer Science Department Columbus State University
Virtual Memory Lecture for CPSC 5155 Edward Bosworth, Ph.D. Computer Science Department Columbus State University Precise Definition of Virtual Memory Virtual memory is a mechanism for translating logical
More informationChapter 5 (Part II) Large and Fast: Exploiting Memory Hierarchy. Baback Izadi Division of Engineering Programs
Chapter 5 (Part II) Baback Izadi Division of Engineering Programs bai@engr.newpaltz.edu Virtual Machines Host computer emulates guest operating system and machine resources Improved isolation of multiple
More informationOriginally prepared by Lehigh graduate Greg Bosch; last modified April 2016 by B. Davison
Virtualization Originally prepared by Lehigh graduate Greg Bosch; last modified April 2016 by B. Davison I. Introduction to Virtualization II. Virtual liances III. Benefits to Virtualization IV. Example
More informationBackground. IBM sold expensive mainframes to large organizations. Monitor sits between one or more OSes and HW
Virtual Machines Background IBM sold expensive mainframes to large organizations Some wanted to run different OSes at the same time (because applications were developed on old OSes) Solution: IBM developed
More informationFast access ===> use map to find object. HW == SW ===> map is in HW or SW or combo. Extend range ===> longer, hierarchical names
Fast access ===> use map to find object HW == SW ===> map is in HW or SW or combo Extend range ===> longer, hierarchical names How is map embodied: --- L1? --- Memory? The Environment ---- Long Latency
More informationDistributed Systems COMP 212. Lecture 18 Othon Michail
Distributed Systems COMP 212 Lecture 18 Othon Michail Virtualisation & Cloud Computing 2/27 Protection rings It s all about protection rings in modern processors Hardware mechanism to protect data and
More informationEE 660: Computer Architecture Cloud Architecture: Virtualization
EE 660: Computer Architecture Cloud Architecture: Virtualization Yao Zheng Department of Electrical Engineering University of Hawaiʻi at Mānoa Based on the slides of Prof. Roy Campbell & Prof Reza Farivar
More informationThe Future of Virtualization
The "anyos" paradigm and its implications through virtualization 30 December 2005 22c3 Berlin Introduction Tools The Future Introduction Application Area Theorie What is Virtualization? Virtualization
More informationIntel Virtualization Technology Roadmap and VT-d Support in Xen
Intel Virtualization Technology Roadmap and VT-d Support in Xen Jun Nakajima Intel Open Source Technology Center Legal Disclaimer INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL PRODUCTS.
More informationCHAPTER 16 - VIRTUAL MACHINES
CHAPTER 16 - VIRTUAL MACHINES 1 OBJECTIVES Explore history and bene ts of virtual machines. Discuss the various virtual machine technologies. Describe the methods used to implement virtualization. Show
More informationLecture 5. KVM for ARM. Christoffer Dall and Jason Nieh. 5 November, Operating Systems Practical. OSP Lecture 5, KVM for ARM 1/42
Lecture 5 KVM for ARM Christoffer Dall and Jason Nieh Operating Systems Practical 5 November, 2014 OSP Lecture 5, KVM for ARM 1/42 Contents Virtualization KVM Virtualization on ARM KVM/ARM: System architecture
More informationLecture 7. Xen and the Art of Virtualization. Paul Braham, Boris Dragovic, Keir Fraser et al. 16 November, Advanced Operating Systems
Lecture 7 Xen and the Art of Virtualization Paul Braham, Boris Dragovic, Keir Fraser et al. Advanced Operating Systems 16 November, 2011 SOA/OS Lecture 7, Xen 1/38 Contents Virtualization Xen Memory CPU
More informationCS370: Operating Systems [Spring 2017] Dept. Of Computer Science, Colorado State University
Frequently asked questions from the previous class survey CS 370: OPERATING SYSTEMS [VIRTUALIZATION] Shrideep Pallickara Computer Science Colorado State University Difference between physical and logical
More informationThe only open-source type-1 hypervisor
Monika Danikáková What is Xen? The only open-source type-1 hypervisor For Unix and Unix-like OS Linux, NetBSD and OpenSolaris From ancient greek term Xenos (ξένος), guest-friends Developed by the University
More informationVirtualization. Adam Belay
Virtualization Adam Belay What is a virtual machine Simulation of a computer Running as an application on a host computer Accurate Isolated Fast Why use a virtual machine? To run multiple
More informationVirtual Leverage: Server Consolidation in Open Source Environments. Margaret Lewis Commercial Software Strategist AMD
Virtual Leverage: Server Consolidation in Open Source Environments Margaret Lewis Commercial Software Strategist AMD What Is Virtualization? Abstraction of Hardware Components Virtual Memory Virtual Volume
More informationMultiprocessor Scheduling. Multiprocessor Scheduling
Multiprocessor Scheduling Will consider only shared memory multiprocessor or multi-core CPU Salient features: One or more caches: cache affinity is important Semaphores/locks typically implemented as spin-locks:
More informationCS252 Spring 2017 Graduate Computer Architecture. Lecture 18: Virtual Machines
CS252 Spring 2017 Graduate Computer Architecture Lecture 18: Virtual Machines Lisa Wu, Krste Asanovic http://inst.eecs.berkeley.edu/~cs252/sp17 WU UCB CS252 SP17 Midterm Topics ISA -- e.g. RISC vs. CISC
More information