Add support for QEMU VMs (based on Libvirt domain XML documents)

1 files changed, 709 insertions, 87 deletions

diff --git a/src/main/java/org/openslx/util/vm/QemuMetaData.java b/src/main/java/org/openslx/util/vm/QemuMetaData.java
index 201ffd8..1e5dd33 100644
--- a/src/main/java/org/openslx/util/vm/QemuMetaData.java
+++ b/src/main/java/org/openslx/util/vm/QemuMetaData.java
@@ -1,233 +1,855 @@
 package org.openslx.util.vm;
 
 import java.io.File;
-import java.io.FileNotFoundException;
-import java.io.IOException;
+import java.math.BigInteger;
 import java.nio.charset.StandardCharsets;
-import java.util.HashMap;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
 import java.util.List;
-import java.util.Map;
+import java.util.Map.Entry;
 
 import org.apache.log4j.Logger;
 import org.openslx.bwlp.thrift.iface.OperatingSystem;
 import org.openslx.bwlp.thrift.iface.Virtualizer;
+import org.openslx.libvirt.domain.Domain;
+import org.openslx.libvirt.domain.device.ControllerUsb;
+import org.openslx.libvirt.domain.device.Disk.BusType;
+import org.openslx.libvirt.domain.device.Disk.StorageType;
+import org.openslx.libvirt.domain.device.DiskCdrom;
+import org.openslx.libvirt.domain.device.DiskFloppy;
+import org.openslx.libvirt.domain.device.DiskStorage;
+import org.openslx.libvirt.domain.device.Graphics;
+import org.openslx.libvirt.domain.device.GraphicsSpice;
+import org.openslx.libvirt.domain.device.Interface;
+import org.openslx.libvirt.domain.device.Sound;
+import org.openslx.libvirt.domain.device.Video;
+import org.openslx.libvirt.xml.LibvirtXmlDocumentException;
+import org.openslx.libvirt.xml.LibvirtXmlSerializationException;
+import org.openslx.libvirt.xml.LibvirtXmlValidationException;
 import org.openslx.thrifthelper.TConst;
 import org.openslx.util.vm.DiskImage.ImageFormat;
-import org.openslx.util.vm.DiskImage.UnknownImageFormatException;
 
-public class QemuMetaData extends VmMetaData<VBoxSoundCardMeta, VBoxDDAccelMeta, VBoxHWVersionMeta, VBoxEthernetDevTypeMeta, VBoxUsbSpeedMeta>
+/**
+ * Metadata to describe the hardware type of a QEMU sound card.
+ * 
+ * @author Manuel Bentele
+ * @version 1.0
+ */
+class QemuSoundCardMeta
 {
+	/**
+	 * Stores the hardware model of the QEMU sound card.
+	 */
+	private final Sound.Model model;
+
+	/**
+	 * Creates metadata to describe the hardware model of a QEMU sound card.
+	 * 
+	 * @param model hardware model of the QEMU sound card.
+	 */
+	public QemuSoundCardMeta( Sound.Model model )
+	{
+		this.model = model;
+	}
 
-	private final Map<String, String> arguments = new HashMap<String, String>();
-	// the above map's elements will take the place of <args> in the config string
-	private String config;
-	private static final Logger LOGGER = Logger.getLogger( QemuMetaData.class );
+	/**
+	 * Returns hardware model of the QEMU sound card.
+	 * 
+	 * @return hardware model of the QEMU sound card.
+	 */
+	public Sound.Model getModel()
+	{
+		return this.model;
+	}
+}
 
-	private static final Virtualizer virtualizer = new Virtualizer( TConst.VIRT_QEMU, "QEMU-KVM" );
+/**
+ * Metadata to describe the hardware acceleration state of QEMU virtual graphics.
+ * 
+ * @author Manuel Bentele
+ * @version 1.0
+ */
+class QemuDDAccelMeta
+{
+	/**
+	 * Stores state of the hardware acceleration for QEMU virtual graphics.
+	 */
+	private final boolean enabled;
+
+	/**
+	 * Creates metadata to describe the hardware acceleration state of QEMU virtual graphics.
+	 * 
+	 * @param enabled state of the hardware acceleration for QEMU virtual graphics.
+	 */
+	public QemuDDAccelMeta( boolean enabled )
+	{
+		this.enabled = enabled;
+	}
 
-	public QemuMetaData( List<OperatingSystem> osList, File file ) throws FileNotFoundException, IOException, UnsupportedVirtualizerFormatException
+	/**
+	 * Returns state of the hardware acceleration of QEMU virtual graphics.
+	 * 
+	 * @return state of the hardware acceleration for QEMU virtual graphics.
+	 */
+	public boolean isEnabled()
+	{
+		return this.enabled;
+	}
+}
+
+/**
+ * Metadata to describe the version of a QEMU virtual machine configuration.
+ * 
+ * @author Manuel Bentele
+ * @version 1.0
+ */
+class QemuHWVersionMeta
+{
+	/**
+	 * Stores the version of a QEMU virtual machine configuration.
+	 */
+	private final int version;
+
+	/**
+	 * Creates metadata to describe the version of a QEMU virtual machine configuration.
+	 * 
+	 * @param version version of the QEMU virtual machine configuration.
+	 */
+	public QemuHWVersionMeta( int version )
+	{
+		this.version = version;
+	}
+
+	/**
+	 * Returns version of the QEMU virtual machine configuration.
+	 * 
+	 * @return version of the QEMU virtual machine configuration.
+	 */
+	public int getVersion()
+	{
+		return this.version;
+	}
+}
+
+/**
+ * Metadata to describe the hardware type of a QEMU ethernet device.
+ * 
+ * @author Manuel Bentele
+ * @version 1.0
+ */
+class QemuEthernetDevTypeMeta
+{
+	/**
+	 * Stores the hardware model of the QEMU ethernet device.
+	 */
+	private final Interface.Model model;
+
+	/**
+	 * Creates metadata to describe the hardware type of a QEMU ethernet device.
+	 * 
+	 * @param model hardware type of the QEMU ethernet device.
+	 */
+	public QemuEthernetDevTypeMeta( Interface.Model model )
+	{
+		this.model = model;
+	}
+
+	/**
+	 * Returns the hardware type of a QEMU ethernet device.
+	 * 
+	 * @return hardware type of the QEMU ethernet device.
+	 */
+	public Interface.Model getModel()
+	{
+		return this.model;
+	}
+}
+
+/**
+ * Metadata to describe a QEMU USB controller.
+ * 
+ * @author Manuel Bentele
+ * @version 1.0
+ */
+class QemuUsbSpeedMeta
+{
+	/**
+	 * Stores the USB speed of the QEMU USB controller.
+	 */
+	private final int speed;
+
+	/**
+	 * Stores the QEMU hardware model of the USB controller.
+	 */
+	private final ControllerUsb.Model model;
+
+	/**
+	 * Creates metadata to describe a QEMU USB controller.
+	 * 
+	 * @param speed USB speed of the QEMU USB controller.
+	 * @param model QEMU hardware model of the USB controller.
+	 */
+	public QemuUsbSpeedMeta( int speed, ControllerUsb.Model model )
+	{
+		this.speed = speed;
+		this.model = model;
+	}
+
+	/**
+	 * Returns the speed of the QEMU USB controller.
+	 * 
+	 * @return speed of the QEMU USB controller.
+	 */
+	public int getSpeed()
+	{
+		return this.speed;
+	}
+
+	/**
+	 * Returns QEMU hardware model of the USB controller.
+	 * 
+	 * @return hardware model of the QEMU USB controller.
+	 */
+	public ControllerUsb.Model getModel()
+	{
+		return this.model;
+	}
+}
+
+/**
+ * Virtual machine configuration (managed by Libvirt) for the QEMU hypervisor.
+ * 
+ * @author Manuel Bentele
+ * @version 1.0
+ */
+public class QemuMetaData extends
+		VmMetaData<QemuSoundCardMeta, QemuDDAccelMeta, QemuHWVersionMeta, QemuEthernetDevTypeMeta, QemuUsbSpeedMeta>
+{
+	/**
+	 * Default bridge name of the network bridge connected to the LAN.
+	 */
+	public static final String NETWORK_DEFAULT_BRIDGE = "brBwLehrpool";
+
+	/**
+	 * Default network name of the isolated host network (host only).
+	 */
+	public static final String NETWORK_DEFAULT_HOST_ONLY = "host";
+
+	/**
+	 * Default network name of the NAT network.
+	 */
+	public static final String NETWORK_DEFAULT_NAT = "nat";
+
+	/**
+	 * Default physical CDROM drive of the hypervisor host.
+	 */
+	public static final String CDROM_DEFAULT_PHYSICAL_DRIVE = "/dev/sr0";
+
+	/**
+	 * List of supported image formats by the QEMU hypervisor.
+	 */
+	private static final List<DiskImage.ImageFormat> SUPPORTED_IMAGE_FORMATS = Collections.unmodifiableList(
+			Arrays.asList( ImageFormat.QCOW2, ImageFormat.VMDK, ImageFormat.VDI ) );
+
+	/**
+	 * Representation of a QEMU hypervisor (managed by Libvirt).
+	 */
+	private static final Virtualizer VIRTUALIZER = new Virtualizer( TConst.VIRT_QEMU, "QEMU" );
+
+	/**
+	 * Libvirt XML configuration file to modify configuration of virtual machine for QEMU.
+	 */
+	private Domain vmConfig = null;
+
+	/**
+	 * Stores current index of added HDD device to the Libvirt XML configuration file.
+	 */
+	private int vmDeviceIndexHddAdd = 0;
+
+	/**
+	 * Stores current index of added CDROM device to the Libvirt XML configuration file.
+	 */
+	private int vmDeviceIndexCdromAdd = 0;
+
+	/**
+	 * Stores current index of added ethernet device to the Libvirt XML configuration file.
+	 */
+	private int vmDeviceIndexEthernetAdd = 0;
+
+	/**
+	 * Creates new virtual machine configuration (managed by Libvirt) for the QEMU hypervisor.
+	 * 
+	 * @param osList list of operating systems.
+	 * @param file image file for the QEMU hypervisor.
+	 * @throws UnsupportedVirtualizerFormatException Libvirt XML configuration cannot be processed.
+	 */
+	public QemuMetaData( List<OperatingSystem> osList, File file ) throws UnsupportedVirtualizerFormatException
 	{
 		super( osList );
-		DiskImage di;
+
 		try {
-			di = new DiskImage( file );
-		} catch ( UnknownImageFormatException e ) {
-			di = null;
+			// read and parse Libvirt domain XML configuration document
+			this.vmConfig = new Domain( file );
+		} catch ( LibvirtXmlDocumentException e ) {
+			throw new UnsupportedVirtualizerFormatException( e.getLocalizedMessage() );
+		} catch ( LibvirtXmlSerializationException e ) {
+			throw new UnsupportedVirtualizerFormatException( e.getLocalizedMessage() );
+		} catch ( LibvirtXmlValidationException e ) {
+			throw new UnsupportedVirtualizerFormatException( e.getLocalizedMessage() );
 		}
-		if ( di == null || di.format != ImageFormat.QCOW2 ) {
-			throw new UnsupportedVirtualizerFormatException( "This is not a qcow2 disk image" );
+
+		// register virtual hardware models for graphical editing of virtual devices (GPU, sound, USB, ...)
+		this.registerVirtualHW();
+
+		// set display name of VM
+		this.displayName = vmConfig.getName();
+
+		// this property cannot be checked with the Libvirt domain XML configuration
+		// to check if machine is in a paused/suspended state, look in the QEMU qcow2 image for snapshots and machine states
+		this.isMachineSnapshot = false;
+
+		// add HDDs, SSDs to QEMU metadata
+		for ( DiskStorage storageDiskDevice : this.vmConfig.getDiskStorageDevices() ) {
+			this.addHddMetaData( storageDiskDevice );
 		}
-		config = "qemu-system-i386 <args> <image> -enable-kvm\nqemu-system-x86_64 <args> <image> -enable-kvm";
-		displayName = file.getName().substring( 0, file.getName().indexOf( "." ) );
-		setOs( "anyOs" );
-		hdds.add( new HardDisk( "anychipset", DriveBusType.IDE, file.getAbsolutePath() ) );
-		makeStartSequence();
 	}
 
-	// initiates the arguments map with a default working sequence that will later be used in the definition array
-	public void makeStartSequence()
+	/**
+	 * Adds an existing and observed storage disk device to the HDD metadata.
+	 * 
+	 * @param storageDiskDevice existing and observed storage disk that should be added to the
+	 *           metadata.
+	 */
+	private void addHddMetaData( DiskStorage storageDiskDevice )
 	{
-		arguments.put( "cpu", "host" );
-		arguments.put( "smp", "2" );
-		arguments.put( "m", "1024" );
-		arguments.put( "vga", "std" );
+		String hddChipsetModel = null;
+		DriveBusType hddChipsetBus = QemuMetaDataUtils.convertBusType( storageDiskDevice.getBusType() );
+		String hddImagePath = storageDiskDevice.getStorageSource();
+
+		this.hdds.add( new HardDisk( hddChipsetModel, hddChipsetBus, hddImagePath ) );
 	}
 
-	private String configWithArgs()
+	@Override
+	public byte[] getFilteredDefinitionArray()
 	{
-		String tempString = "";
-		for ( String key : arguments.keySet() ) {
-			tempString += "-" + key + " " + arguments.get( key ) + " ";
-		}
-		return config.replaceAll( "<args>", tempString );
+		// remove UUID in Libvirt domain XML configuration
+		this.vmConfig.removeUuid();
+
+		// removes all specified boot order entries
+		this.vmConfig.removeBootOrder();
+
+		// removes all referenced storage files of all specified CDROMs, Floppy drives and HDDs
+		this.vmConfig.removeDiskDevicesStorage();
+
+		// removes all source networks of all specified network interfaces
+		this.vmConfig.removeInterfaceDevicesSource();
+
+		// output filtered Libvirt domain XML configuration
+		String configuration = this.vmConfig.toString();
+		return configuration.getBytes( StandardCharsets.UTF_8 );
 	}
 
 	@Override
-	public byte[] getFilteredDefinitionArray()
+	public List<DiskImage.ImageFormat> getSupportedImageFormats()
 	{
-		return configWithArgs().getBytes( StandardCharsets.UTF_8 );
+		return QemuMetaData.SUPPORTED_IMAGE_FORMATS;
 	}
 
 	@Override
 	public void applySettingsForLocalEdit()
 	{
+		// NOT implemented yet
 	}
 
 	@Override
 	public boolean addHddTemplate( File diskImage, String hddMode, String redoDir )
 	{
-		String tempS = config.replaceAll( "<image>", diskImage.getAbsolutePath() );
-		config = tempS;
-		hdds.add( new HardDisk( "anychipset", DriveBusType.IDE, diskImage.getAbsolutePath() ) );
-		return true;
+		return this.addHddTemplate( diskImage.getAbsolutePath(), hddMode, redoDir );
 	}
 
 	@Override
 	public boolean addHddTemplate( String diskImagePath, String hddMode, String redoDir )
 	{
-		String tempS = config.replaceAll( "<image>", diskImagePath );
-		config = tempS;
-		hdds.add( new HardDisk( "anychipset", DriveBusType.IDE, diskImagePath ) );
-		return true;
+		return this.addHddTemplate( this.vmDeviceIndexHddAdd++, diskImagePath, hddMode, redoDir );
+	}
+
+	/**
+	 * Adds hard disk drive (HDD) to the QEMU virtual machine configuration.
+	 * 
+	 * @param index current index of HDD to be added to the virtual machine configuration.
+	 * @param diskImagePath path to the virtual disk image for the HDD.
+	 * @param hddMode operation mode of the HDD.
+	 * @param redoDir directory for the redo log if an independent non-persistent
+	 *           <code>hddMode</code> is set.
+	 * @return result state of adding the HDD.
+	 */
+	public boolean addHddTemplate( int index, String diskImagePath, String hddMode, String redoDir )
+	{
+		ArrayList<DiskStorage> storageDiskDevices = this.vmConfig.getDiskStorageDevices();
+		DiskStorage storageDiskDevice = QemuMetaDataUtils.getArrayIndex( storageDiskDevices, index );
+
+		if ( storageDiskDevice == null ) {
+			// HDD does not exist, so create new storage (HDD) device
+			storageDiskDevice = this.vmConfig.addDiskStorageDevice();
+			storageDiskDevice.setReadOnly( false );
+			storageDiskDevice.setBusType( BusType.VIRTIO );
+			String targetDevName = QemuMetaDataUtils.createAlphabeticalDeviceName( "vd", index );
+			storageDiskDevice.setTargetDevice( targetDevName );
+			storageDiskDevice.setStorage( StorageType.FILE, diskImagePath );
+
+			// add new created HDD to the metadata of the QemuMetaData object, too
+			this.addHddMetaData( storageDiskDevice );
+		} else {
+			// HDD exists, so update existing storage (HDD) device
+			storageDiskDevice.setStorage( StorageType.FILE, diskImagePath );
+		}
+
+		return false;
 	}
 
 	@Override
 	public boolean addDefaultNat()
 	{
-		return true;
+		return this.addEthernet( EtherType.NAT );
 	}
 
 	@Override
 	public void setOs( String vendorOsId )
 	{
-		setOs( TConst.VIRT_QEMU, vendorOsId );
+		this.setOs( vendorOsId );
 	}
 
 	@Override
 	public boolean addDisplayName( String name )
 	{
-		// TODO Auto-generated method stub
-		return false;
+		this.vmConfig.setName( name );
+
+		final boolean statusName = this.vmConfig.getName().equals( name );
+
+		return statusName;
 	}
 
 	@Override
 	public boolean addRam( int mem )
 	{
-		this.arguments.put( "m", Integer.toString( mem ) );
-		return true;
+		BigInteger memory = BigInteger.valueOf( mem );
+
+		this.vmConfig.setMemory( memory );
+		this.vmConfig.setCurrentMemory( memory );
+
+		final boolean isMemorySet = this.vmConfig.getMemory().toString().equals( memory.toString() );
+		final boolean isCurrentMemorySet = this.vmConfig.getCurrentMemory().toString().equals( memory.toString() );
+
+		return isMemorySet && isCurrentMemorySet;
 	}
 
 	@Override
 	public void addFloppy( int index, String image, boolean readOnly )
 	{
-		// TODO Auto-generated method stub
-
+		ArrayList<DiskFloppy> floppyDiskDevices = this.vmConfig.getDiskFloppyDevices();
+		DiskFloppy floppyDiskDevice = QemuMetaDataUtils.getArrayIndex( floppyDiskDevices, index );
+
+		if ( floppyDiskDevice == null ) {
+			// floppy device does not exist, so create new floppy device
+			floppyDiskDevice = this.vmConfig.addDiskFloppyDevice();
+			floppyDiskDevice.setBusType( BusType.FDC );
+			String targetDevName = QemuMetaDataUtils.createAlphabeticalDeviceName( "fd", index );
+			floppyDiskDevice.setTargetDevice( targetDevName );
+			floppyDiskDevice.setReadOnly( readOnly );
+			floppyDiskDevice.setStorage( StorageType.FILE, image );
+		} else {
+			// floppy device exists, so update existing floppy device
+			floppyDiskDevice.setReadOnly( readOnly );
+			floppyDiskDevice.setStorage( StorageType.FILE, image );
+		}
 	}
 
 	@Override
 	public boolean addCdrom( String image )
 	{
-		// TODO Auto-generated method stub
+		return this.addCdrom( this.vmDeviceIndexCdromAdd++, image );
+	}
+
+	/**
+	 * Adds CDROM drive to the QEMU virtual machine configuration.
+	 * 
+	 * @param index current index of CDROM drive to be added to the virtual machine configuration.
+	 * @param image path to a virtual image that will be inserted as CDROM into the drive.
+	 * @return result state of adding the CDROM drive.
+	 */
+	public boolean addCdrom( int index, String image )
+	{
+		ArrayList<DiskCdrom> cdromDiskDevices = this.vmConfig.getDiskCdromDevices();
+		DiskCdrom cdromDiskDevice = QemuMetaDataUtils.getArrayIndex( cdromDiskDevices, index );
+
+		if ( cdromDiskDevice == null ) {
+			// CDROM device does not exist, so create new CDROM device
+			cdromDiskDevice = this.vmConfig.addDiskCdromDevice();
+			cdromDiskDevice.setBusType( BusType.SATA );
+			String targetDevName = QemuMetaDataUtils.createAlphabeticalDeviceName( "sd", index );
+			cdromDiskDevice.setTargetDevice( targetDevName );
+			cdromDiskDevice.setReadOnly( true );
+
+			if ( image == null ) {
+				cdromDiskDevice.setStorage( StorageType.BLOCK, CDROM_DEFAULT_PHYSICAL_DRIVE );
+			} else {
+				cdromDiskDevice.setStorage( StorageType.FILE, image );
+			}
+		} else {
+			// CDROM device exists, so update existing CDROM device
+			cdromDiskDevice.setReadOnly( true );
+
+			if ( image == null ) {
+				cdromDiskDevice.setStorage( StorageType.BLOCK, CDROM_DEFAULT_PHYSICAL_DRIVE );
+			} else {
+				cdromDiskDevice.setStorage( StorageType.FILE, image );
+			}
+		}
+
 		return false;
 	}
 
 	@Override
 	public boolean addCpuCoreCount( int nrOfCores )
 	{
-		this.arguments.put( "smp", Integer.toString( nrOfCores ) );
-		return true;
+		this.vmConfig.setVCpu( nrOfCores );
+
+		boolean isVCpuSet = this.vmConfig.getVCpu() == nrOfCores;
+
+		return isVCpuSet;
 	}
 
 	@Override
-	public void setSoundCard( VmMetaData.SoundCardType type )
+	public void setSoundCard( SoundCardType type )
 	{
+		QemuSoundCardMeta soundDeviceConfig = this.soundCards.get( type );
+		ArrayList<Sound> soundDevices = this.vmConfig.getSoundDevices();
+		Sound.Model soundDeviceModel = soundDeviceConfig.getModel();
+
+		if ( soundDevices.isEmpty() ) {
+			// create new sound device with 'soundDeviceModel' hardware
+			Sound soundDevice = this.vmConfig.addSoundDevice();
+			soundDevice.setModel( soundDeviceModel );
+		} else {
+			// update sound device model type of existing sound devices
+			for ( Sound soundDevice : soundDevices ) {
+				soundDevice.setModel( soundDeviceModel );
+			}
+		}
 	}
 
 	@Override
-	public VmMetaData.SoundCardType getSoundCard()
+	public SoundCardType getSoundCard()
 	{
-		return null;
+		ArrayList<Sound> soundDevices = this.vmConfig.getSoundDevices();
+		SoundCardType soundDeviceType = SoundCardType.DEFAULT;
+
+		if ( soundDevices.isEmpty() ) {
+			// the VM configuration does not contain a sound card device
+			soundDeviceType = SoundCardType.NONE;
+		} else {
+			// the VM configuration at least one sound card device, so return the type of the first one
+			Sound.Model soundDeviceModel = soundDevices.get( 0 ).getModel();
+			soundDeviceType = QemuMetaDataUtils.convertSoundDeviceModel( soundDeviceModel );
+		}
+
+		return soundDeviceType;
 	}
 
 	@Override
-	public void setDDAcceleration( VmMetaData.DDAcceleration type )
+	public void setDDAcceleration( DDAcceleration type )
 	{
+		QemuDDAccelMeta accelerationConfig = this.ddacc.get( type );
+		ArrayList<Graphics> graphicDevices = this.vmConfig.getGraphicDevices();
+		ArrayList<Video> videoDevices = this.vmConfig.getVideoDevices();
+		final boolean accelerationEnabled = accelerationConfig.isEnabled();
+
+		boolean acceleratedGraphicsAvailable = false;
+
+		if ( graphicDevices.isEmpty() ) {
+			// add new graphics device with enabled acceleration to VM configuration
+			GraphicsSpice graphicSpiceDevice = this.vmConfig.addGraphicsSpiceDevice();
+			graphicSpiceDevice.setOpenGl( true );
+			acceleratedGraphicsAvailable = true;
+		} else {
+			// enable graphic acceleration of existing graphics devices
+			for ( Graphics graphicDevice : graphicDevices ) {
+				// set hardware acceleration for SPICE based graphics output
+				// other graphic devices do not support hardware acceleration
+				if ( graphicDevice instanceof GraphicsSpice ) {
+					GraphicsSpice.class.cast( graphicDevice ).setOpenGl( true );
+					acceleratedGraphicsAvailable = true;
+				}
+			}
+		}
+
+		// only configure hardware acceleration of video card(s) if graphics with hardware acceleration is available
+		if ( acceleratedGraphicsAvailable ) {
+			if ( videoDevices.isEmpty() ) {
+				// add new video device with enabled acceleration to VM configuration
+				Video videoDevice = this.vmConfig.addVideoDevice();
+				videoDevice.setModel( Video.Model.VIRTIO );
+				videoDevice.set2DAcceleration( true );
+				videoDevice.set3DAcceleration( true );
+			} else {
+				// enable graphic acceleration of existing graphics and video devices
+				for ( Video videoDevice : videoDevices ) {
+					// set hardware acceleration for Virtio GPUs
+					// other GPUs do not support hardware acceleration
+					if ( videoDevice.getModel() == Video.Model.VIRTIO ) {
+						videoDevice.set2DAcceleration( accelerationEnabled );
+						videoDevice.set3DAcceleration( accelerationEnabled );
+					}
+				}
+			}
+		}
 	}
 
 	@Override
-	public VmMetaData.DDAcceleration getDDAcceleration()
+	public DDAcceleration getDDAcceleration()
 	{
-		return null;
+		ArrayList<Graphics> graphicsDevices = this.vmConfig.getGraphicDevices();
+		ArrayList<Video> videoDevices = this.vmConfig.getVideoDevices();
+		DDAcceleration accelerationState = DDAcceleration.OFF;
+
+		boolean acceleratedGraphicsAvailable = false;
+		boolean acceleratedVideoDevAvailable = false;
+
+		// search for hardware accelerated graphics
+		for ( Graphics graphicDevice : graphicsDevices ) {
+			// only SPICE based graphic devices support hardware acceleration
+			if ( graphicDevice instanceof GraphicsSpice ) {
+				acceleratedGraphicsAvailable = true;
+				break;
+			}
+		}
+
+		// search for hardware accelerated video devices
+		for ( Video videoDevice : videoDevices ) {
+			// only Virtio based video devices support hardware acceleration
+			if ( videoDevice.getModel() == Video.Model.VIRTIO ) {
+				acceleratedVideoDevAvailable = true;
+				break;
+			}
+		}
+
+		// hardware acceleration is available if at least one accelerated graphics and video device is available
+		if ( acceleratedGraphicsAvailable && acceleratedVideoDevAvailable ) {
+			accelerationState = DDAcceleration.ON;
+		} else {
+			accelerationState = DDAcceleration.OFF;
+		}
+
+		return accelerationState;
 	}
 
 	@Override
-	public void setHWVersion( VmMetaData.HWVersion type )
+	public void setHWVersion( HWVersion type )
 	{
+		// NOT supported by the QEMU hypervisor
 	}
 
 	@Override
-	public VmMetaData.HWVersion getHWVersion()
+	public HWVersion getHWVersion()
 	{
+		// NOT supported by the QEMU hypervisor
 		return null;
 	}
 
 	@Override
-	public void setEthernetDevType( int cardIndex, VmMetaData.EthernetDevType type )
+	public void setEthernetDevType( int cardIndex, EthernetDevType type )
 	{
+		QemuEthernetDevTypeMeta networkDeviceConfig = this.networkCards.get( type );
+		ArrayList<Interface> networkDevices = this.vmConfig.getInterfaceDevices();
+		Interface networkDevice = QemuMetaDataUtils.getArrayIndex( networkDevices, cardIndex );
+		Interface.Model networkDeviceModel = networkDeviceConfig.getModel();
+
+		if ( networkDevice != null ) {
+			networkDevice.setModel( networkDeviceModel );
+		}
 	}
 
 	@Override
-	public VmMetaData.EthernetDevType getEthernetDevType( int cardIndex )
+	public EthernetDevType getEthernetDevType( int cardIndex )
 	{
-		return null;
+		ArrayList<Interface> networkDevices = this.vmConfig.getInterfaceDevices();
+		Interface networkDevice = QemuMetaDataUtils.getArrayIndex( networkDevices, cardIndex );
+		EthernetDevType networkDeviceType = EthernetDevType.NONE;
+
+		if ( networkDevice == null ) {
+			// network interface device is not present
+			networkDeviceType = EthernetDevType.NONE;
+		} else {
+			// get model of existing network interface device
+			Interface.Model networkDeviceModel = networkDevice.getModel();
+			networkDeviceType = QemuMetaDataUtils.convertNetworkDeviceModel( networkDeviceModel );
+		}
+
+		return networkDeviceType;
 	}
 
 	@Override
-	public byte[] getDefinitionArray()
+	public void setMaxUsbSpeed( UsbSpeed speed )
 	{
-		return configWithArgs().getBytes( StandardCharsets.UTF_8 );
+		QemuUsbSpeedMeta usbControllerConfig = this.usbSpeeds.get( speed );
+		ArrayList<ControllerUsb> usbControllerDevices = this.vmConfig.getUsbControllerDevices();
+		ControllerUsb.Model usbControllerModel = usbControllerConfig.getModel();
+
+		if ( usbControllerDevices.isEmpty() ) {
+			// add new USB controller with specified speed 'usbControllerModel'
+			ControllerUsb usbControllerDevice = this.vmConfig.addControllerUsbDevice();
+			usbControllerDevice.setModel( usbControllerModel );
+		} else {
+			// update model of all USB controller devices to support the maximum speed
+			for ( ControllerUsb usbControllerDevice : usbControllerDevices ) {
+				usbControllerDevice.setModel( usbControllerModel );
+			}
+		}
 	}
 
 	@Override
-	public boolean addEthernet( VmMetaData.EtherType type )
+	public UsbSpeed getMaxUsbSpeed()
 	{
-		return false;
+		ArrayList<ControllerUsb> usbControllerDevices = this.vmConfig.getUsbControllerDevices();
+		UsbSpeed maxUsbSpeed = VmMetaData.UsbSpeed.NONE;
+		int maxUsbSpeedNumeric = 0;
+
+		for ( ControllerUsb usbControllerDevice : usbControllerDevices ) {
+			ControllerUsb.Model usbControllerModel = usbControllerDevice.getModel();
+
+			for ( Entry<UsbSpeed, QemuUsbSpeedMeta> usbSpeedEntry : this.usbSpeeds.entrySet() ) {
+				QemuUsbSpeedMeta usbSpeed = usbSpeedEntry.getValue();
+				if ( usbSpeed.getSpeed() > maxUsbSpeedNumeric && usbSpeed.getModel() == usbControllerModel ) {
+					maxUsbSpeed = usbSpeedEntry.getKey();
+					maxUsbSpeedNumeric = usbSpeed.getSpeed();
+				}
+			}
+		}
+
+		return maxUsbSpeed;
 	}
 
 	@Override
-	public Virtualizer getVirtualizer()
+	public byte[] getDefinitionArray()
 	{
-		return virtualizer;
+		String configuration = this.vmConfig.toString();
+
+		if ( configuration == null ) {
+			return null;
+		} else {
+			// append newline at the end of the XML content to match the structure of an original Libvirt XML file
+			configuration += System.lineSeparator();
+			return configuration.getBytes( StandardCharsets.UTF_8 );
+		}
 	}
 
 	@Override
-	public boolean tweakForNonPersistent()
+	public boolean addEthernet( EtherType type )
+	{
+		return this.addEthernet( this.vmDeviceIndexEthernetAdd++, type );
+	}
+
+	/**
+	 * Adds an ethernet card to the QEMU virtual machine configuration.
+	 * 
+	 * @param index current index of the ethernet card to be added to the virtual machine
+	 *           configuration.
+	 * @param type card model of the ethernet card.
+	 * @return result state of adding the ethernet card.
+	 */
+	public boolean addEthernet( int index, EtherType type )
 	{
+		QemuEthernetDevTypeMeta defaultNetworkDeviceConfig = this.networkCards.get( EthernetDevType.AUTO );
+		ArrayList<Interface> interfaceDevices = this.vmConfig.getInterfaceDevices();
+		Interface interfaceDevice = QemuMetaDataUtils.getArrayIndex( interfaceDevices, index );
+
+		final Interface.Model defaultNetworkDeviceModel = defaultNetworkDeviceConfig.getModel();
+
+		if ( interfaceDevice == null ) {
+			// network interface device does not exist, so create new network interface device
+			switch ( type ) {
+			case BRIDGED:
+				// add network bridge interface device
+				interfaceDevice = this.vmConfig.addInterfaceBridgeDevice();
+				interfaceDevice.setModel( defaultNetworkDeviceModel );
+				interfaceDevice.setSource( QemuMetaData.NETWORK_DEFAULT_BRIDGE );
+				break;
+			case HOST_ONLY:
+				// add network interface device with link to the isolated host network
+				interfaceDevice = this.vmConfig.addInterfaceNetworkDevice();
+				interfaceDevice.setModel( defaultNetworkDeviceModel );
+				interfaceDevice.setSource( QemuMetaData.NETWORK_DEFAULT_HOST_ONLY );
+				break;
+			case NAT:
+				// add network interface device with link to the NAT network
+				interfaceDevice = this.vmConfig.addInterfaceNetworkDevice();
+				interfaceDevice.setModel( defaultNetworkDeviceModel );
+				interfaceDevice.setSource( QemuMetaData.NETWORK_DEFAULT_NAT );
+				break;
+			}
+		} else {
+			// network interface device exists, so update existing network interface device
+			switch ( type ) {
+			case BRIDGED:
+				interfaceDevice.setType( Interface.Type.BRIDGE );
+				interfaceDevice.setSource( QemuMetaData.NETWORK_DEFAULT_BRIDGE );
+				break;
+			case HOST_ONLY:
+				interfaceDevice.setType( Interface.Type.NETWORK );
+				interfaceDevice.setSource( QemuMetaData.NETWORK_DEFAULT_HOST_ONLY );
+				break;
+			case NAT:
+				interfaceDevice.setType( Interface.Type.NETWORK );
+				interfaceDevice.setSource( QemuMetaData.NETWORK_DEFAULT_NAT );
+				break;
+			}
+		}
+
 		return false;
 	}
 
 	@Override
-	public void registerVirtualHW()
+	public Virtualizer getVirtualizer()
 	{
+		return QemuMetaData.VIRTUALIZER;
 	}
 
 	@Override
-	public void setMaxUsbSpeed( VmMetaData.UsbSpeed speed )
+	public boolean tweakForNonPersistent()
 	{
-		// TODO: Actual speed setting?
-		if ( speed == null || speed == VmMetaData.UsbSpeed.NONE ) {
-			arguments.remove( "usb" );
-		} else {
-			arguments.put( "usb", "" );
-		}
+		// NOT implemented yet
+		return false;
 	}
 
 	@Override
-	public VmMetaData.UsbSpeed getMaxUsbSpeed()
+	public void registerVirtualHW()
 	{
-		if ( arguments.containsKey( "usb" ) )
-			return VmMetaData.UsbSpeed.USB2_0; // TODO
-		return VmMetaData.UsbSpeed.NONE;
+		// @formatter:off
+		soundCards.put( VmMetaData.SoundCardType.NONE,          new QemuSoundCardMeta( null ) );
+		soundCards.put( VmMetaData.SoundCardType.DEFAULT,       new QemuSoundCardMeta( Sound.Model.ICH9 ) );
+		soundCards.put( VmMetaData.SoundCardType.SOUND_BLASTER, new QemuSoundCardMeta( Sound.Model.SB16 ) );
+		soundCards.put( VmMetaData.SoundCardType.ES,            new QemuSoundCardMeta( Sound.Model.ES1370 ) );
+		soundCards.put( VmMetaData.SoundCardType.AC,            new QemuSoundCardMeta( Sound.Model.AC97 ) );
+		soundCards.put( VmMetaData.SoundCardType.HD_AUDIO,      new QemuSoundCardMeta( Sound.Model.ICH9 ) );
+
+		ddacc.put( VmMetaData.DDAcceleration.OFF, new QemuDDAccelMeta( false ) );
+		ddacc.put( VmMetaData.DDAcceleration.ON,  new QemuDDAccelMeta( true ) );
+
+		hwversion.put( VmMetaData.HWVersion.DEFAULT, new QemuHWVersionMeta( 0 ) );
+
+		networkCards.put( VmMetaData.EthernetDevType.NONE,      new QemuEthernetDevTypeMeta( null ) );
+		networkCards.put( VmMetaData.EthernetDevType.AUTO,      new QemuEthernetDevTypeMeta( Interface.Model.VIRTIO_NET_PCI ) );
+		networkCards.put( VmMetaData.EthernetDevType.PCNETPCI2, new QemuEthernetDevTypeMeta( Interface.Model.PCNET ) );
+		networkCards.put( VmMetaData.EthernetDevType.E1000,     new QemuEthernetDevTypeMeta( Interface.Model.E1000 ) );
+		networkCards.put( VmMetaData.EthernetDevType.E1000E,    new QemuEthernetDevTypeMeta( Interface.Model.E1000E ) );
+		networkCards.put( VmMetaData.EthernetDevType.VMXNET3,   new QemuEthernetDevTypeMeta( Interface.Model.VMXNET3 ) );
+		networkCards.put( VmMetaData.EthernetDevType.PARAVIRT,  new QemuEthernetDevTypeMeta( Interface.Model.VIRTIO_NET_PCI ) );
+
+		usbSpeeds.put( VmMetaData.UsbSpeed.NONE,   new QemuUsbSpeedMeta( 0, ControllerUsb.Model.NONE ) );
+		usbSpeeds.put( VmMetaData.UsbSpeed.USB1_1, new QemuUsbSpeedMeta( 1, ControllerUsb.Model.ICH9_UHCI1 ) );
+		usbSpeeds.put( VmMetaData.UsbSpeed.USB2_0, new QemuUsbSpeedMeta( 2, ControllerUsb.Model.ICH9_EHCI1 ) );
+		usbSpeeds.put( VmMetaData.UsbSpeed.USB3_0, new QemuUsbSpeedMeta( 3, ControllerUsb.Model.QEMU_XHCI ) );
+		// @formatter:on
 	}
-
 }