Microsoft Virtual PC for VFP Developers
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Effective Virtual CPU Configuration with QEMU and Libvirt
Effective Virtual CPU Configuration with QEMU and libvirt Kashyap Chamarthy <[email protected]> Open Source Summit Edinburgh, 2018 1 / 38 Timeline of recent CPU flaws, 2018 (a) Jan 03 • Spectre v1: Bounds Check Bypass Jan 03 • Spectre v2: Branch Target Injection Jan 03 • Meltdown: Rogue Data Cache Load May 21 • Spectre-NG: Speculative Store Bypass Jun 21 • TLBleed: Side-channel attack over shared TLBs 2 / 38 Timeline of recent CPU flaws, 2018 (b) Jun 29 • NetSpectre: Side-channel attack over local network Jul 10 • Spectre-NG: Bounds Check Bypass Store Aug 14 • L1TF: "L1 Terminal Fault" ... • ? 3 / 38 Related talks in the ‘References’ section Out of scope: Internals of various side-channel attacks How to exploit Meltdown & Spectre variants Details of performance implications What this talk is not about 4 / 38 Related talks in the ‘References’ section What this talk is not about Out of scope: Internals of various side-channel attacks How to exploit Meltdown & Spectre variants Details of performance implications 4 / 38 What this talk is not about Out of scope: Internals of various side-channel attacks How to exploit Meltdown & Spectre variants Details of performance implications Related talks in the ‘References’ section 4 / 38 OpenStack, et al. libguestfs Virt Driver (guestfish) libvirtd QMP QMP QEMU QEMU VM1 VM2 Custom Disk1 Disk2 Appliance ioctl() KVM-based virtualization components Linux with KVM 5 / 38 OpenStack, et al. libguestfs Virt Driver (guestfish) libvirtd QMP QMP Custom Appliance KVM-based virtualization components QEMU QEMU VM1 VM2 Disk1 Disk2 ioctl() Linux with KVM 5 / 38 OpenStack, et al. libguestfs Virt Driver (guestfish) Custom Appliance KVM-based virtualization components libvirtd QMP QMP QEMU QEMU VM1 VM2 Disk1 Disk2 ioctl() Linux with KVM 5 / 38 libguestfs (guestfish) Custom Appliance KVM-based virtualization components OpenStack, et al. -
Windows 7 Operating Guide
Welcome to Windows 7 1 1 You told us what you wanted. We listened. This Windows® 7 Product Guide highlights the new and improved features that will help deliver the one thing you said you wanted the most: Your PC, simplified. 3 3 Contents INTRODUCTION TO WINDOWS 7 6 DESIGNING WINDOWS 7 8 Market Trends that Inspired Windows 7 9 WINDOWS 7 EDITIONS 10 Windows 7 Starter 11 Windows 7 Home Basic 11 Windows 7 Home Premium 12 Windows 7 Professional 12 Windows 7 Enterprise / Windows 7 Ultimate 13 Windows Anytime Upgrade 14 Microsoft Desktop Optimization Pack 14 Windows 7 Editions Comparison 15 GETTING STARTED WITH WINDOWS 7 16 Upgrading a PC to Windows 7 16 WHAT’S NEW IN WINDOWS 7 20 Top Features for You 20 Top Features for IT Professionals 22 Application and Device Compatibility 23 WINDOWS 7 FOR YOU 24 WINDOWS 7 FOR YOU: SIMPLIFIES EVERYDAY TASKS 28 Simple to Navigate 28 Easier to Find Things 35 Easy to Browse the Web 38 Easy to Connect PCs and Manage Devices 41 Easy to Communicate and Share 47 WINDOWS 7 FOR YOU: WORKS THE WAY YOU WANT 50 Speed, Reliability, and Responsiveness 50 More Secure 55 Compatible with You 62 Better Troubleshooting and Problem Solving 66 WINDOWS 7 FOR YOU: MAKES NEW THINGS POSSIBLE 70 Media the Way You Want It 70 Work Anywhere 81 New Ways to Engage 84 INTRODUCTION TO WINDOWS 7 6 WINDOWS 7 FOR IT PROFESSIONALS 88 DESIGNING WINDOWS 7 8 WINDOWS 7 FOR IT PROFESSIONALS: Market Trends that Inspired Windows 7 9 MAKE PEOPLE PRODUCTIVE ANYWHERE 92 WINDOWS 7 EDITIONS 10 Remove Barriers to Information 92 Windows 7 Starter 11 Access -
Para-Virtualization
Large-Scale Data & Systems Group Virtualization Jana Giceva [email protected] PeterDepartment R. Pietzuch of Computing Imperial College London [email protected]://lsds.doc.ic.ac.uk Fall 2018 Intro to Virtualization 2 Why do we need virtualizaton? • Recall previous lecture… 3 What is virtualization? • Broadly speaking… Virtualization: simulate or emulate a function of a resource (object) in software, identical to that of the physical one. Abstraction to make software look and behave like hardware. • Recall – virtual memory • Computer software gains access to more memory than it is physically installed, via the background swapping of data to disk storage. • Similarly, virtualization techniques can be applied to other IT infrastructure layers, including networks, storage, laptop or server hardware, OSs and applications. 4 Virtual infrastructure • Allows multiple VMs with different OSs and applications to run in isolation, side by side on the same physical machine. • VMs can be provisioned to any system. • Machine independence of OS and applications. • Can manage an application and its OS as a unit, encapsulating them in a single VM. src: VMWare whitepaper -- Virtualization 5 Properties of Virtual Machines • Key properties of VMs: • 1. Partitioning – Run multiple OS on one physical machine – Divide system resources between VMs • 2. Isolation – Provide fault and security isolation at the hardware level – Preserve performance with advanced resource controls • 3. Encapsulation – Save the entire state of a VM to files – Move and copy VMs as easily as copying and moving files • 4. Hardware independence – Provision or migrate any VM to any physical server 6 Virtualization – Definitions and Terms Virtual Machine (VM): a tightly isolated software container with an operating system (OS) and an application inside. -
A Virtual Machine Environment for Real Time Systems Laboratories
AC 2007-904: A VIRTUAL MACHINE ENVIRONMENT FOR REAL-TIME SYSTEMS LABORATORIES Mukul Shirvaikar, University of Texas-Tyler MUKUL SHIRVAIKAR received the Ph.D. degree in Electrical and Computer Engineering from the University of Tennessee in 1993. He is currently an Associate Professor of Electrical Engineering at the University of Texas at Tyler. He has also held positions at Texas Instruments and the University of West Florida. His research interests include real-time imaging, embedded systems, pattern recognition, and dual-core processor architectures. At the University of Texas he has started a new real-time systems lab using dual-core processor technology. He is also the principal investigator for the “Back-To-Basics” project aimed at engineering student retention. Nikhil Satyala, University of Texas-Tyler NIKHIL SATYALA received the Bachelors degree in Electronics and Communication Engineering from the Jawaharlal Nehru Technological University (JNTU), India in 2004. He is currently pursuing his Masters degree at the University of Texas at Tyler, while working as a research assistant. His research interests include embedded systems, dual-core processor architectures and microprocessors. Page 12.152.1 Page © American Society for Engineering Education, 2007 A Virtual Machine Environment for Real Time Systems Laboratories Abstract The goal of this project was to build a superior environment for a real time system laboratory that would allow users to run Windows and Linux embedded application development tools concurrently on a single computer. These requirements were dictated by real-time system applications which are increasingly being implemented on asymmetric dual-core processors running different operating systems. A real time systems laboratory curriculum based on dual- core architectures has been presented in this forum in the past.2 It was designed for a senior elective course in real time systems at the University of Texas at Tyler that combines lectures along with an integrated lab. -
Network Virtualization for Open Cloud
Πανεπιστήμιο Δυτικής Αττικής Τμήμα Μηχανικών Πληροφορικής και Υπολογιστών ΠΤΥΧΙΑΚΗ ΕΡΓΑΣΙΑ της ΣΟΥΒΑΛΙΩΤΗ ΜΑΡΙΑΣ Επιβλέπων Καθηγητής: Ξυδάς Ιωάννης Επίκουρος Καθηγητής ΠΑ.Δ.Α. Αθήνα, Σεπτέμβριος, 2018 Περιεχόμενα Περίληψη ...............................................................................................................................................9 Αbstract...................................................................................................................................................9 Ευχαριστίες.............................................................................................................................................10 ΚΕΦΑΛΑΙΟ 1 – Εισαγωγή ..................................................................................................................11 1.1. Περίληψη Κεφαλαίου..................................................................................................................11 1.2. Virtualization ...............................................................................................................................11 1.2.1. Hypervisor – Virtual Machine Manager................................................................................12 1.2.1.1. Ενσωματωμένοι Hypervisors.........................................................................................13 1.2.2. Network Virtualization..........................................................................................................13 1.2.2.1. Συνδυασμοί Network Virtualization...............................................................................14 -
Understanding Full Virtualization, Paravirtualization, and Hardware Assist
VMware Understanding Full Virtualization, Paravirtualization, and Hardware Assist Contents Introduction .................................................................................................................1 Overview of x86 Virtualization..................................................................................2 CPU Virtualization .......................................................................................................3 The Challenges of x86 Hardware Virtualization ...........................................................................................................3 Technique 1 - Full Virtualization using Binary Translation......................................................................................4 Technique 2 - OS Assisted Virtualization or Paravirtualization.............................................................................5 Technique 3 - Hardware Assisted Virtualization ..........................................................................................................6 Memory Virtualization................................................................................................6 Device and I/O Virtualization.....................................................................................7 Summarizing the Current State of x86 Virtualization Techniques......................8 Full Virtualization with Binary Translation is the Most Established Technology Today..........................8 Hardware Assist is the Future of Virtualization, but the Real Gains Have -
Manage Your Virtual Environments with Virtual Machine Manager 2008
Virtualisation In this article, I will examine VMM 2008 The red box on the upper-left represents At a glance: and the new features it brings to IT adminis- the Virtual Machine Manager 2008 server Support for VMware VMs trators. I’ll then look at the requirements and service. Above it are the different interfaces Windows PowerShell- based scripting and the steps involved with a VMM installation. into the service: the Administrator Console, automation Finally, I’ll take a closer look at how to use the Windows PowerShell interface, and the Consolidated, centralised some of the new features of VMM 2008. management Installation procedures An introduction to Virtual Machine There are significantly Manager 2008 System Center Virtual Machine Manager more interfaces to 2008 is a standalone application that provides centralised, enterprise-class management of the VMM system in virtual machines running under Microsoft Virtual Server 2005 R2 SP1, Windows Serv- VMM 2008 er 2008 Hyper-V, Microsoft Hyper-V Server Manage your virtual 2008 and VMware Infrastructure 3 (ESX/ ESXi) servers. Together with other System Self-Service Web Portal with delegated user Center products, VMM provides end-to-end access. Windows PowerShell forms the basis physical and virtual infrastructure manage- for all access to the VMM server. The VMM environments with ment. Figure 1 shows the architectural lay- Admin Console is built entirely on Win- out of Virtual Machine Manager. dows PowerShell, so you can simply create As those familiar with VMM 2007 will Windows PowerShell scripts that the VMM note, there are significantly more interfaces server service runs. Thus, the public API for Virtual Machine to the VMM system in VMM 2008 (see Fig- VMM 2008 is Windows PowerShell, and any ure 1). -
Locating and Extracting Digital Evidence from Hosted Virtual Desktop Infrastructures: Cloud Context
Locating and Extracting Digital Evidence from Hosted virtual desktop Infrastructures: Cloud Context NIRBHAY JAWALE B.C.I.S (AUT University) New Zealand A thesis submitted to the graduate faculty of Design and Creative Technologies AUT University in partial fulfilment of the Requirements for the degree of Master of Forensic Information Technology School of Computing and Mathematical Sciences Auckland, New Zealand 2010 II Declaration I hereby declare that this submission is my own work and that, to the best of my knowledge and belief, it contains no material previously published or written by another person nor material which to a substantial extent has been accepted for the qualification of any other degree or diploma of a University or other institution of higher learning, except where due acknowledgement is made in the acknowledgements. ........................... Signature III Acknowledgements This thesis was conducted at the Faculty of Design and Creative Technologies in the school of Computing and Mathematical Sciences at AUT University, New Zealand. During the course of writing this thesis, I have received a valuable support from many people. Firstly, I would like to thank my family for their blessings, encouragement and believing that I could get through this study. Secondly, I am deeply thankful and honored by having Professor Ajit Narayanan as my thesis supervisor. This thesis would not have been possible without his guidance, encouragement and interest; he took to supervise my thesis topic. I very much enjoyed the critical discussions and comments on my research topic with Professor Ajit Narayanan, this thesis would not have been in the present form without his valuable contribution. -
Introduction to Virtualization Virtualization
Introduction to Virtualization Prashant Shenoy Computer Science CS691D: Hot-OS Lecture 2, page 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 diversity by running apps in VMs – Portability and flexibility Computer Science CS691D: Hot-OS Lecture 2, page 2 Types of Interfaces • Different types of interfaces – Assembly instructions – System calls – APIs • Depending on what is replaced /mimiced, we obtain different forms of virtualization Computer Science CS691D: Hot-OS Lecture 2, page 3 Types of Virtualization • Emulation – VM emulates/simulates complete hardware – Unmodified guest OS for a different PC can be run • Bochs, VirtualPC for Mac, QEMU • Full/native Virtualization – VM simulates “enough” hardware to allow an unmodified guest OS to be run in isolation • Same hardware CPU – IBM VM family, VMWare Workstation, Parallels,… Computer Science CS691D: Hot-OS Lecture 2, page 4 Types of virtualization • Para-virtualization – VM does not simulate hardware – Use special API that a modified guest OS must use – Hypercalls trapped by the Hypervisor and serviced – Xen, VMWare ESX Server • OS-level virtualization – OS allows multiple secure virtual servers to be run – Guest OS is the same as the host OS, but appears isolated • apps see an isolated OS – Solaris Containers, BSD Jails, Linux Vserver • Application level virtualization – Application is gives its own copy of components that are not shared • (E.g., own registry files, global objects) - VE prevents conflicts – JVM Computer Science CS691D: Hot-OS Lecture 2, page 5 Examples • Application-level virtualization: “process virtual machine” • VMM /hypervisor Computer Science CS691D: Hot-OS Lecture 2, page 6 The Architecture of Virtual Machines J Smith and R. -
Vmware Converter Enterprise-Class Migration Tool for Converting Physical Machines, Virtual Machines Or Other Third-Party Image Formats to Vmware Virtual Machines
PRODUCT DATASHEET VMware Converter Enterprise-class migration tool for converting physical machines, virtual machines or other third-party image formats to VMware virtual machines What Is VMware Converter? How Does VMware Converter Work? VMware® Converter is a highly robust and scalable enterprise-class VMware Converter is managed through a simple, task based UI that migration tool that reduces the time that IT managers spend convert- enables customers to convert physical machines, other VMware ing physical machines to VMware virtual machines. Using a snapshot- product formats or other third-party formats to VMware virtual based cloning mechanism that is extremely fast and reliable, VMware machines in three easy steps: Converter enables remote conversions without disrupting the source • Step 1: Specify the source physical server, virtual machine or third- server during the conversion process. party format to convert. VMware Converter provides a full range of physical-to-virtual and • Step 2: Specify the destination format, virtual machine name, and virtual-to-virtual conversions, allowing users to: location for the new virtual machine to be created. • Convert physical machines running Windows operating systems 1 to • Step 3: Automate the virtual machine creation and conversion pro- VMware virtual machines cess with VMware Converter. • Import older VMware virtual machine formats to new VMware virtual machine formats What are Benefits and Applications of VMware • Convert third-party formats such as Symantec Backup Exec System Converter? Recovery (formerly Symantec LiveState Recovery) and Microsoft Vir- tual Server/Virtual PC to VMware virtual machines Customers often want to convert a large number of physical servers to VMware virtual machines, for example, during a server consoli- • Populate new virtual machine environments quickly from large direc- dation project. -
Oracle® Linux Virtualization Manager Getting Started Guide
Oracle® Linux Virtualization Manager Getting Started Guide F25124-11 September 2021 Oracle Legal Notices Copyright © 2019, 2021 Oracle and/or its affiliates. This software and related documentation are provided under a license agreement containing restrictions on use and disclosure and are protected by intellectual property laws. Except as expressly permitted in your license agreement or allowed by law, you may not use, copy, reproduce, translate, broadcast, modify, license, transmit, distribute, exhibit, perform, publish, or display any part, in any form, or by any means. Reverse engineering, disassembly, or decompilation of this software, unless required by law for interoperability, is prohibited. The information contained herein is subject to change without notice and is not warranted to be error-free. If you find any errors, please report them to us in writing. If this is software or related documentation that is delivered to the U.S. Government or anyone licensing it on behalf of the U.S. Government, then the following notice is applicable: U.S. GOVERNMENT END USERS: Oracle programs (including any operating system, integrated software, any programs embedded, installed or activated on delivered hardware, and modifications of such programs) and Oracle computer documentation or other Oracle data delivered to or accessed by U.S. Government end users are "commercial computer software" or "commercial computer software documentation" pursuant to the applicable Federal Acquisition Regulation and agency-specific supplemental regulations. As such, the use, reproduction, duplication, release, display, disclosure, modification, preparation of derivative works, and/or adaptation of i) Oracle programs (including any operating system, integrated software, any programs embedded, installed or activated on delivered hardware, and modifications of such programs), ii) Oracle computer documentation and/or iii) other Oracle data, is subject to the rights and limitations specified in the license contained in the applicable contract. -
Vmware Converter User's Manual: Vmware Converter 3
VMware Converter User’s Manual VMware Converter 3 VMware Converter User’s Manual VMware Converter User’s Manual Version: 3.0.2 Revision: 20071018 Item: VMC-ENG-Q407-281 You can find the most up-to-date technical documentation on our Web site at http://www.vmware.com/support/ The VMware Web site also provides the latest product updates. If you have comments about this documentation, submit your feedback to: [email protected] © 2006-2007 VMware, Inc. All rights reserved. Protected by one or more of U.S. Patent Nos. 6,397,242, 6,496,847, 6,704,925, 6,711,672, 6,725,289, 6,735,601, 6,785,886, 6,789,156, 6,795,966, 6,880,022, 6,944,699, 6,961,806, 6,961,941, 7,069,413, 7,082,598, 7,089,377, 7,111,086, 7,111,145, 7,117,481, 7,149,843, 7,155,558, 7,222,221, 7,260,815, 7,260,820, and 7,269,683; patents pending. VMware, the VMware “boxes” logo and design, Virtual SMP and VMotion are registered trademarks or trademarks of VMware, Inc. in the United States and/or other jurisdictions. All other marks and names mentioned herein may be trademarks of their respective companies. VMware, Inc. 3401 Hillview Ave. Palo Alto, CA 94304 www.vmware.com 2 VMware, Inc. Contents Preface 7 1 Introduction to VMware Converter 9 Migration with VMware Converter 9 VMware Converter Editions 10 Cloning and System Reconfiguration of Physical Machines 10 Hot and Cold Cloning 11 Local and Remote Cloning 11 Example of Remote Hot Cloning 11 Example of Local Cold Cloning 13 Cloning Modes 14 Volume‐Based Cloning 14 Disk‐Based Cloning 15 Migrating Existing Virtual Machines