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ContentsContents
Virtualization Guide
  1. Preface
  2. I Introduction
    1. 1 Virtualization technology
    2. 2 Virtualization scenarios
    3. 3 Introduction to Xen virtualization
    4. 4 Introduction to KVM virtualization
    5. 5 Virtualization tools
    6. 6 Installation of virtualization components
    7. 7 Virtualization limits and support
  3. II Managing virtual machines with libvirt
    1. 8 Starting and stopping libvirtd
    2. 9 Preparing the VM Host Server
    3. 10 Guest installation
    4. 11 Basic VM Guest management
    5. 12 Connecting and authorizing
    6. 13 Advanced storage topics
    7. 14 Configuring virtual machines with Virtual Machine Manager
    8. 15 Configuring virtual machines with virsh
    9. 16 Managing virtual machines with Vagrant
    10. 17 Xen to KVM migration guide
  4. III Hypervisor-independent features
    1. 18 Disk cache modes
    2. 19 VM Guest clock settings
    3. 20 libguestfs
    4. 21 QEMU guest agent
    5. 22 Software TPM emulator
  5. IV Managing virtual machines with Xen
    1. 23 Setting up a virtual machine host
    2. 24 Virtual networking
    3. 25 Managing a virtualization environment
    4. 26 Block devices in Xen
    5. 27 Virtualization: configuration options and settings
    6. 28 Administrative tasks
    7. 29 XenStore: configuration database shared between domains
    8. 30 Xen as a high-availability virtualization host
    9. 31 Xen: converting a paravirtual (PV) guest into a fully virtual (FV/HVM) guest
  6. V Managing virtual machines with QEMU
    1. 32 QEMU overview
    2. 33 Setting up a KVM VM Host Server
    3. 34 Guest installation
    4. 35 Running virtual machines with qemu-system-ARCH
    5. 36 Virtual machine administration using QEMU monitor
  7. Glossary
  8. A Virtual machine drivers
  9. B Configuring GPU Pass-Through for NVIDIA cards
  10. C XM, XL toolstacks, and the libvirt framework
  11. D GNU licenses
Navigation
Applies to SUSE Linux Enterprise Server 15 SP3

Part I Introduction

1 Virtualization technology

Virtualization is a technology that provides a way for a machine (Host) to run another operating system (guest virtual machines) on top of the host operating system.

2 Virtualization scenarios

Virtualization provides several useful capabilities to your organization: more efficient hardware use, support for legacy software, operating system isolation, live migration, disaster recovery, and load balancing.

3 Introduction to Xen virtualization

This chapter introduces and explains the components and technologies you need to understand to set up and manage a Xen-based virtualization environment.

4 Introduction to KVM virtualization

5 Virtualization tools

libvirt is a library that provides a common API for managing popular virtualization solutions, among them KVM and Xen. The library provides a normalized management API for these virtualization solutions, allowing a stable, cross-hypervisor interface for higher-level management tools. The library also provides APIs for management of virtual networks and storage on the VM Host Server. The configuration of each VM Guest is stored in an XML file.

With libvirt you can also manage your VM Guests remotely. It supports TLS encryption, x509 certificates and authentication with SASL. This enables managing VM Host Servers centrally from a single workstation, alleviating the need to access each VM Host Server individually.

Using the libvirt-based tools is the recommended way of managing VM Guests. Interoperability between libvirt and libvirt-based applications has been tested and is an essential part of SUSE's support stance.

6 Installation of virtualization components

You can install the virtualization tools required to run a VM Host Server in two ways:

7 Virtualization limits and support

Currently, SUSE supports KVM full virtualization on AMD64/Intel 64, Arm AArch64, IBM Z, and LinuxONE hosts.

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