new run-virt.include for xen plugin. qemukvm modules now loaded via runlevelscript qemukvm, script added to sudoers as well. better ideas?

3 files changed, 332 insertions, 309 deletions

diff --git a/os-plugins/plugins/xen/files/hvm.include b/os-plugins/plugins/xen/files/hvm.include
new file mode 100644
index 00000000..beb9315a
--- /dev/null
+++ b/os-plugins/plugins/xen/files/hvm.include
@@ -0,0 +1,209 @@
+# This is an machine template for run-virt.include of the Xen plugin.
+# This template was taken from an example in openSUSE 11.2
+# HVM template
+
+cat <<EOF
+#  -*- mode: python; -*-
+#============================================================================
+# Python configuration setup for 'xm create'.
+# This configuration was created through $0 on $(date)
+#============================================================================
+
+import os, re
+
+arch_libdir = 'lib'
+arch = os.uname()[4]
+if os.uname()[0] == 'Linux' and re.search('64', arch):
+    arch_libdir = 'lib64'
+
+#----------------------------------------------------------------------------
+# Kernel image file.
+kernel = "/usr/lib/xen/boot/hvmloader"
+
+# The domain build function. HVM domain uses 'hvm'.
+builder='hvm'
+
+# Initial memory allocation (in megabytes) for the new domain.
+memory = ${mem}
+
+# Shadow pagetable memory for the domain, in MB.
+# If not explicictly set, xend will pick an appropriate value.  
+# Should be at least 2KB per MB of domain memory, plus a few MB per vcpu.
+#shadow_memory = 8
+
+# A name for your domain. All domains must have different names.
+name = "${vm_name}"
+
+#-----------------------------------------------------------------------------
+# The number of cpus guest platform has, default=1
+#vcpus=1
+
+# Enable/disable HVM guest PAE, default=1 (enabled)
+#pae=1
+
+# Enable/disable HVM guest ACPI, default=1 (enabled)
+#acpi=1
+
+# Enable/disable HVM APIC mode, default=1 (enabled)
+# Note that this option is ignored if vcpus > 1
+#apic=1
+
+# Enable/disable extended power management support within HVM guest, i.e., beyond
+# S3, S4, S5 within guest like exposing battery meter.
+# 0 (default option, extended power management support disabled)
+# 1 (pass-through mode; uses pass-through as needed; efficient but limited in scope)
+# 2 (non pass-through mode; extended scope, likely to work on all applicable environment
+#    but comparitively less efficient than pass-through mode)
+# xen_extended_power_mgmt=0
+
+# List of which CPUS this domain is allowed to use, default Xen picks
+#cpus = ""         # leave to Xen to pick
+#cpus = "0"        # all vcpus run on CPU0
+#cpus = "0-3,5,^1" # all vcpus run on cpus 0,2,3,5
+#cpus = ["2", "3"] # VCPU0 runs on CPU2, VCPU1 runs on CPU3
+
+#----------------------------------------------------------------------------
+# Optionally define mac and/or bridge for the network interfaces.
+# Random MACs are assigned if not given.
+#vif = [ 'type=ioemu, mac=00:16:3e:00:00:11, bridge=xenbr0, model=ne2k_pci' ]
+# type=ioemu specify the NIC is an ioemu device not netfront
+#vif = [ 'type=ioemu, bridge=xenbr0' ]
+vif = [ '${xen_vif}' ]
+
+#----------------------------------------------------------------------------
+# Define the disk devices you want the domain to have access to, and
+# what you want them accessible as.
+# Each disk entry is of the form phy:UNAME,DEV,MODE
+# where UNAME is the device, DEV is the device name the domain will see,
+# and MODE is r for read-only, w for read-write.
+#disk = [ 'phy:hda1,hda1,r' ]
+#disk = [ 'file:/var/lib/xen/images/disk.img,ioemu:hda,w', ',hdc:cdrom,r' ]
+disk = [ '${xen_disk}' ]
+
+#----------------------------------------------------------------------------
+# Configure the behaviour when a domain exits.  There are three 'reasons'
+# for a domain to stop: poweroff, reboot, and crash.  For each of these you
+# may specify:
+#   "destroy",        meaning that the domain is cleaned up as normal;
+#   "restart",        meaning that a new domain is started in place of the old
+#                     one;
+#   "preserve",       meaning that no clean-up is done until the domain is
+#                     manually destroyed (using xm destroy, for example); or
+#   "rename-restart", meaning that the old domain is not cleaned up, but is
+#                     renamed and a new domain started in its place.
+# In the event a domain stops due to a crash, you have the additional options:
+#   "coredump-destroy", meaning dump the crashed domain's core and then destroy;
+#   "coredump-restart', meaning dump the crashed domain's core and the restart.
+# The default is
+#   on_poweroff = 'destroy'
+#   on_reboot   = 'restart'
+#   on_crash    = 'restart'
+#on_poweroff = 'destroy'
+#on_reboot   = 'restart'
+#on_crash    = 'restart'
+
+#============================================================================
+# HVM specific
+#============================================================================
+# Device Model to be used
+device_model = '/usr/' + arch_libdir + '/xen/bin/qemu-dm'
+
+#-----------------------------------------------------------------------------
+# boot on floppy (a), hard disk (c), Network (n) or CD-ROM (d) 
+# default: hard disk, cd-rom, floppy
+#boot="cda"
+
+#-----------------------------------------------------------------------------
+#  write to temporary files instead of disk image files
+#snapshot=1
+
+#----------------------------------------------------------------------------
+# enable SDL library for graphics, default = 0
+sdl=0
+
+#----------------------------------------------------------------------------
+# enable OpenGL for texture rendering inside the SDL window, default = 1
+# valid only if sdl is enabled.
+opengl=1
+
+#----------------------------------------------------------------------------
+# enable VNC library for graphics, default = 1
+vnc=1
+
+#----------------------------------------------------------------------------
+# address that should be listened on for the VNC server if vnc is set.
+# default is to use 'vnc-listen' setting from /etc/xen/xend-config.sxp
+#vnclisten="127.0.0.1"
+
+#----------------------------------------------------------------------------
+# set VNC display number, default = domid
+#vncdisplay=1
+
+#----------------------------------------------------------------------------
+# try to find an unused port for the VNC server, default = 1
+#vncunused=1
+
+#----------------------------------------------------------------------------
+# set password for domain's VNC console
+# default is depents on vncpasswd in xend-config.sxp
+vncpasswd=''
+
+#----------------------------------------------------------------------------
+# no graphics, use serial port
+#nographic=0
+
+#----------------------------------------------------------------------------
+# enable stdvga, default = 0 (use cirrus logic device model)
+stdvga=0
+
+#-----------------------------------------------------------------------------
+#   serial port re-direct to pty deivce, /dev/pts/n 
+#   then xm console or minicom can connect
+serial='pty'
+
+
+#-----------------------------------------------------------------------------
+#   Qemu Monitor, default is disable
+#   Use ctrl-alt-2 to connect
+#monitor=1
+
+
+#-----------------------------------------------------------------------------
+#   enable sound card support, [sb16|es1370|all|..,..], default none
+#soundhw='sb16'
+
+
+#-----------------------------------------------------------------------------
+#    set the real time clock to local time [default=0 i.e. set to utc]
+#localtime=1
+
+
+#-----------------------------------------------------------------------------
+#    set the real time clock offset in seconds [default=0 i.e. same as dom0]
+#rtc_timeoffset=3600
+
+#-----------------------------------------------------------------------------
+#    start in full screen
+#full-screen=1   
+
+
+#-----------------------------------------------------------------------------
+#   Enable USB support (specific devices specified at runtime through the
+#			monitor window)
+#usb=1
+#   Enable USB mouse support (only enable one of the following, `mouse' for
+#			      PS/2 protocol relative mouse, `tablet' for
+#			      absolute mouse)
+#usbdevice='mouse'
+#usbdevice='tablet'
+
+#-----------------------------------------------------------------------------
+#   Set keyboard layout, default is en-us keyboard. 
+#keymap='de'
+
+#-----------------------------------------------------------------------------
+#   Enable/disable xen platform PCI device, default=1 (enabled)
+#xen_platform_pci=1
+
+#============================================================================
+EOF
diff --git a/os-plugins/plugins/xen/files/machine.include b/os-plugins/plugins/xen/files/machine.include
index 93adca75..a1573578 100644
--- a/os-plugins/plugins/xen/files/machine.include
+++ b/os-plugins/plugins/xen/files/machine.include
@@ -1,62 +1,55 @@
+# This is an machine template for run-virt.include of the Xen plugin.
+# This template was taken from an example in openSUSE 11.2
+
+cat <<EOF
 #  -*- mode: python; -*-
 #============================================================================
 # Python configuration setup for 'xm create'.
-# This script sets the parameters used when a domain is created using 'xm create'.
-# You use a separate script for each domain you want to create, or 
-# you can set the parameters for the domain on the xm command line.
+# This configuration was created through $0 on $(date)
 #============================================================================
 
 #----------------------------------------------------------------------------
 # Kernel image file and (optional) ramdisk (initrd).
-kernel = "/boot/vmlinuz-xen"
-ramdisk = "/boot/initrd-xen"
+kernel = "${xen_kernel}"
+ramdisk = "${xen_ramdisk}"
 
 # Or use domUloader instead of kernel/ramdisk to get kernel from domU FS
 #bootloader = "/usr/lib/xen/boot/domUloader.py"
-#bootentry = "hda2:/vmlinuz-xen,/initrd-xen"
+#bootentry = "hda1:/${xen_kernel},/${xen_ramdisk}"
+# TODO: check these:
+#bootargs="--entry=xvda2:/boot/vmlinuz-xen,/boot/initrd-xen"
+
+localtime=0
 
-# The domain build function. Default is 'linux'.
-#builder='linux'
+# The domain build function. Default is 'linux', HVM domain uses 'hvm'.
+builder = 'linux'
 
 # Initial memory allocation (in megabytes) for the new domain.
-#
-# WARNING: Creating a domain with insufficient memory may cause out of
-#          memory errors. The domain needs enough memory to boot kernel
-#          and modules. Allocating less than 32MBs is not recommended.
-memory = 64
+memory = ${mem}
 
 # A name for your domain. All domains must have different names.
-name = "ExampleDomain"
-
-# 128-bit UUID for the domain.  The default behavior is to generate a new UUID
-# on each call to 'xm create'.
-#uuid = "06ed00fe-1162-4fc4-b5d8-11993ee4a8b9"
+name = "${vm_name}"
 
 # List of which CPUS this domain is allowed to use, default Xen picks
 #cpus = ""         # leave to Xen to pick
 #cpus = "0"        # all vcpus run on CPU0
 #cpus = "0-3,5,^1" # run on cpus 0,2,3,5
+#cpus = "${xen_cpus}"
 
 # Number of Virtual CPUS to use, default is 1
-#vcpus = 1
+#vcpus = ${xen_vcpus}
 
 #----------------------------------------------------------------------------
 # Define network interfaces.
 
-# By default, no network interfaces are configured.  You may have one created
+# By default, no network interfaces are configured. You may have one created
 # with sensible defaults using an empty vif clause:
-#
 # vif = [ '' ]
-#
 # or optionally override backend, bridge, ip, mac, script, type, or vifname:
-#
 # vif = [ 'mac=00:16:3e:00:00:11, bridge=xenbr0' ]
-#
 # or more than one interface may be configured:
-#
 # vif = [ '', 'bridge=xenbr1' ]
-
-vif = [ '' ]
+vif = [ '${xen_vif}' ]
 
 #----------------------------------------------------------------------------
 # Define the disk devices you want the domain to have access to, and
@@ -64,40 +57,26 @@ vif = [ '' ]
 # Each disk entry is of the form phy:UNAME,DEV,MODE
 # where UNAME is the device, DEV is the device name the domain will see,
 # and MODE is r for read-only, w for read-write.
-
-disk = [ 'phy:hda1,hda1,w' ]
+# disk = [ 'phy:hda1,hda1,w' ]
+disk = [ '${xen_disk}' ]
 
 #----------------------------------------------------------------------------
 # Define frame buffer device.
-#
 # By default, no frame buffer device is configured.
-#
 # To create one using the SDL backend and sensible defaults:
-#
 # vfb = [ 'type=sdl' ]
-#
 # This uses environment variables XAUTHORITY and DISPLAY.  You
 # can override that:
-#
 # vfb = [ 'type=sdl,xauthority=/home/bozo/.Xauthority,display=:1' ]
-#
 # To create one using the VNC backend and sensible defaults:
-#
 # vfb = [ 'type=vnc' ]
-#
 # The backend listens on 127.0.0.1 port 5900+N by default, where N is
 # the domain ID.  You can override both address and N:
-#
 # vfb = [ 'type=vnc,vnclisten=127.0.0.1,vncdisplay=1' ]
-#
 # Or you can bind the first unused port above 5900:
-#
 # vfb = [ 'type=vnc,vnclisten=0.0.0.0,vnunused=1' ]
-#
 # You can override the password:
-#
 # vfb = [ 'type=vnc,vncpasswd=MYPASSWD' ]
-#
 # Empty password disables authentication.  Defaults to the vncpasswd
 # configured in xend-config.sxp.
 
@@ -123,16 +102,16 @@ disk = [ 'phy:hda1,hda1,w' ]
 # variables used by custom rc scripts (e.g. VMID=, usr= ).
 
 # Set if you want dhcp to allocate the IP address.
-#dhcp="dhcp"
+dhcp="${xen_dhcp}"
 # Set netmask.
 #netmask=
 # Set default gateway.
 #gateway=
 # Set the hostname.
-#hostname= "vm%d" % vmid
+hostname= "${hostname}"
 
-# Set root device.
-root = "/dev/hda1"
+# Set root device (eg. /dev/hda1).
+root = "${xen_root}"
 
 # Root device for nfs.
 #root = "/dev/nfs"
@@ -142,13 +121,13 @@ root = "/dev/hda1"
 #nfs_root   = '/full/path/to/root/directory'
 
 # Extra arguments to pass to the kernel.
-extra = ""
+# Eg: set runlevel
+extra = "${xen_extra}"
 
 #----------------------------------------------------------------------------
 # Configure the behaviour when a domain exits.  There are three 'reasons'
 # for a domain to stop: poweroff, reboot, and crash.  For each of these you
 # may specify:
-#
 #   "destroy",        meaning that the domain is cleaned up as normal;
 #   "restart",        meaning that a new domain is started in place of the old
 #                     one;
@@ -156,34 +135,33 @@ extra = ""
 #                     manually destroyed (using xm destroy, for example); or
 #   "rename-restart", meaning that the old domain is not cleaned up, but is
 #                     renamed and a new domain started in its place.
-#
 # In the event a domain stops due to a crash, you have the additional options:
-#
 #   "coredump-destroy", meaning dump the crashed domain's core and then destroy;
 #   "coredump-restart', meaning dump the crashed domain's core and the restart.
-#
 # The default is
-#
 #   on_poweroff = 'destroy'
 #   on_reboot   = 'restart'
 #   on_crash    = 'restart'
-#
-# For backwards compatibility we also support the deprecated option restart
-#
-# restart = 'onreboot' means on_poweroff = 'destroy'
-#                            on_reboot   = 'restart'
-#                            on_crash    = 'destroy'
-#
-# restart = 'always'   means on_poweroff = 'restart'
-#                            on_reboot   = 'restart'
-#                            on_crash    = 'restart'
-#
-# restart = 'never'    means on_poweroff = 'destroy'
-#                            on_reboot   = 'destroy'
-#                            on_crash    = 'destroy'
-
 #on_poweroff = 'destroy'
 #on_reboot   = 'restart'
 #on_crash    = 'restart'
 
+#-----------------------------------------------------------------------------
+#   Configure PVSCSI devices:
+#   PDEV   gives physical SCSI device to be attached to specified guest
+#          domain by one of the following identifier format.
+#          - XX:XX:XX:XX (4-tuples with decimal notation which shows
+#                          "host:channel:target:lun")
+#          - /dev/sdxx or sdx
+#          - /dev/stxx or stx
+#          - /dev/sgxx or sgx
+#          - result of 'scsi_id -gu -s'.
+#            ex. # scsi_id -gu -s /block/sdb
+#                  36000b5d0006a0000006a0257004c0000
+#   VDEV   gives virtual SCSI device by 4-tuples (XX:XX:XX:XX) as 
+#          which the specified guest domain recognize.
+#vscsi = [ 'PDEV, VDEV' ]
+#vscsi = [ '/dev/sdx, 0:0:0:0' ]
+
 #============================================================================
+EOF
diff --git a/os-plugins/plugins/xen/files/run-virt.include b/os-plugins/plugins/xen/files/run-virt.include
index beba0bb6..aeadf68e 100644
--- a/os-plugins/plugins/xen/files/run-virt.include
+++ b/os-plugins/plugins/xen/files/run-virt.include
@@ -30,261 +30,97 @@ fi
 ### Declaration of default variables
 ################################################################################
 
-exit
-#PLUGINCONFVIRTUALBOX="${PLUGINCONFROOT}/${self}"
+PLUGINCONFXEN="${PLUGINCONFROOT}/${self}"
 # create TMPDIR for all users
-#mkdir -m 1777 /tmp/${self} 2>/dev/null
+mkdir -m 1777 /tmp/${self} 2>/dev/null
 # dir for configs
-#confdir="/tmp/${self}/${USER}/${VM_ID}"
-# use alternate configuration directory instead of $HOME/.VirtualBox
-#export VBOX_USER_HOME=${confdir}
+confdir="/tmp/${self}/${USER}/${VM_ID}"
+# use vm_shortname for VM name since vm_name can be very long
+vm_name=${vm_shortname}
+conffile=${confdir}/${vm_name}
 # define dirs and files which can be removed after exit, be carefull!
-#RMDIRS="${snapshotdir} ${confdir} /tmp/.vbox-${USER}-ipc" 2>/dev/null
-#rm -rf ${RMDIRS} 2>/dev/null
-#machfolder="${VBOX_USER_HOME}/Machines"
-# imgname is the name of the virtual image file
-# use vm_shortname since vm_name can be very long
-#vm_shortname=$(echo ${imgname%.*} | sed -e "s, ,-,g")
-#machconfig="${machfolder}/${vm_shortname}/${vm_shortname}.xml"
-#diskfolder="${VBOX_USER_HOME}/HardDisks"
-#snapshotdir=${machfolder}/${vm_shortname}/Snapshots
-#diskfile="${diskfolder}/${imgname}"
-#mkdir -p ${diskfolder} ${snapshotdir} 2>/dev/null
-#ln -sf ${vmpath} ${diskfile}
-#
-# check the file type
-#if echo ${imgname} | grep -iE "vdi" >/dev/null 2>&1; then #vmdk|vhd
-#  imgtype=$(echo ${imgname#*.} | tr [a-z] [A-Z])
-#else
-#  writelog "${imgname} is not a valid image type (vdi), exiting!" #vmdk|vhd
-#  exit 1
-#fi
-#
-# TODO: maybe rewrite, to reduce checks, merge it with network option,
-# so we can have a "compatibility to vmware config" section
-#case "${vmostype}" in
-#  winxp*)
-#    vmostype="WindowsXP"
-#  ;;
-#  winvista*)
-#    vmostype="WindowsVista"
-#  ;;
-#  Windows7*)
-#    vmostype="Windows7"
-#  ;;
-#  linux*)
-#    vmostype="Linux26"
-#  ;;
-#esac
-#
-#writelog "Directories:"
-#writelog "\tConfig dir:\t\t$confdir"
-#writelog "\tMachines dir:\t\t$machfolder"
-#writelog "\tMachine config:\t\t$machconfig"
-#writelog "\tHardDisks dir:\t\t$diskfolder"
-#
+RMDIRS="${confdir}" 2>/dev/null
+rm -rf ${RMDIRS} 2>/dev/null
+
+# TODO: read from XML file
+xen_kernel=/boot/vmlinuz-xen
+xen_ramdisk=/initrd-xen
+xen_root=/dev/sda1
+xen_extra=3
+xen_disk="file:${vmpath},sda1,r"
+xen_vif="mac=$macaddr, bridge=xenbr0"
+xen_dhcp="dhcp" # off
+
+writelog "Directories:"
+writelog "\tConfig dir:\t\t$confdir"
+
 ################################################################################
 ### Hardware checks
 ################################################################################
-#
-# remove ':' from MAC addr for vbox
-#macaddr=$(echo ${macaddr} | sed 's/://g')
-#
-# machine UUID, MAC addr part of it
-#machineuuid="00000000-0000-0000-0000-${macaddr}"
-# cosmetical, since UUID in lower case
-#machineuuid=$(echo ${machineuuid} | tr [A-Z] [a-z])
-# get UUID of VBox image
-#diskuuid=$(VBoxManage -q showvdiinfo ${diskfile} | grep UUID | \
-#  awk '{print $2}')
-# snapshot UUID is static
-#snapshotuuid="88bc8b6d-f248-468a-95fe-318084904f8b"
-#
+
 # memory part equal to vmware plugin
 # percentage of memory to use for virtualbox in standard case
-#if [ -n "${forcemem}" ]; then
-#  mem="${forcemem}"
-#else
-#  permem=30
-#  if [ "${totalmem}" -ge "1600" ]; then
-#    permem=40
-#  fi
-#  # check if /tmp is on harddisk
-#  if grep -qe "/dev/.* /tmp " /proc/mounts ; then
-#    permem=60
-#    id44="1"
-#    # Hack, if more than 2,5G RAM use 40% of Ram and write vmem into Ram as well
-#    # (40% vmware | 40% confdir(vmem...) | 20% host
-#    # VMplayer 2+ issue
-#    # TODO: makes this sense for vbox?
-#    #if [ "${totalmem}" -ge "2500" ]; then
-#      #permem=40
-#      #rmdir ${snapshotdir}
-#      #snapshotdirold=${snapshotdir}
-#      #snapshotdir=/dev/shm/${self}/${USER}/${VM_ID}
-#      #mkdir -p ${snapshotdir}
-#      #ln -sf ${snapshotdir} ${snapshotdirold}
-#    #fi
-#  fi
-#  mem=$(expr ${totalmem} / 100 \* ${permem})
-#  if [ "${id44}" = "1" ]; then
-#    memhost=$(expr ${totalmem} - ${mem})
-#  else
-#    memhost=$(expr ${totalmem} - ${mem} - ${mem})
-#  fi
-#  #permem=40
-#  #mem=$(expr ${totalmem} * ${permem})
-#  if [ "${mem}" -lt "256" ] || [ "${memhost}" -lt "256" ]; then
-#    writelog "Memory out of range: ${mem} MB (guest) / ${memhost} MB (host)!"
-#    writelog "Min. 256 MB for host and guest!"
-#    exit 1
-#  fi
-#fi
-#
-# translate network cards
-#if [ "${network_card}" = "e1000" ]; then
-#  vb_network_card="82540EM"
-#else
-#  network_card="pcnet"
-#  vb_network_card="Am79C973"
-#fi
-#
-# translate network kinds (nat, bridged, host-only)
-#case "${network_kind}" in
-#  bridged)
-#    network_kind='BridgedInterface name="br0"'
-#  ;;
-#  hostonly|host-only)
-#    network_kind='HostOnlyInterface name="vboxnet0"'
-#  ;;
-#  *)
-#    network_kind="NAT"
-#  ;;
-#esac
-#
-# external GUI
-#vrdpport="590${VM_ID}"
-#
-# TODO: nur bei vmchooser
-# TODO: most of the following does not make much sense yet ...
-# virtual fd/cd/dvd and drive devices, floppy b: for configuration
-# if $floppy_0 from run-virt.include set then fdtest="TRUE"
-#fdtest=
-#fdtest=${floppy_0:+"TRUE"}
-# if $fdtest not set floppy0="FALSE", else "TRUE"
-#floppy0=${fdtest:-"FALSE"}
-#floppy1="TRUE"
-#floppy1name="/var/lib/virt/vmchooser/loopimg/fd.img"
-# if $cdrom_0 from run-virt.include set then cdtest="TRUE"
-#cdtest=
-#cdtest=${cdrom_0:+"TRUE"}
-# if $cdtest not set cdrom0="FALSE", else "TRUE"
-#cdrom0=${cdtest:-"FALSE"}
-# if $cdrom_1 from run-virt.include set then cdtest="TRUE"
-#cdtest=
-#cdtest=${cdrom_1:+"TRUE"}
-# if $cdtest not set cdrom1="FALSE", else "TRUE"
-#cdrom1=${cdtest:-"FALSE"}
-# ide is expected default, test for the virtual disk image type should
-# be done while creating the runscripts ...
-#ide="TRUE"
-#hddrv="ide"
-#
-#writelog "\tSnapshots dir:\t\t$snapshotdir"
-#writelog "Diskimage:"
-#writelog "\tDisk type:\t\t$imgtype"
-#writelog "\tDisk file:\t\t$diskfile"
-#writelog "\tVMostype:\t\t$vmostype"
-#writelog "\tMachine UUID:\t\t$machineuuid"
-#writelog "\tDisk UUID:\t\t$diskuuid"
-#writelog "\tSnapshot UUID:\t\t$snapshotuuid"
-#writelog "Virtual Hardware:"
-#writelog "\tGuest RAM:\t\t${mem} MB"
+if [ -n "${forcemem}" ]; then
+  mem="${forcemem}"
+else
+  permem=30
+  if [ "${totalmem}" -ge "1600" ]; then
+    permem=40
+  fi
+  # check if /tmp is on harddisk
+  if grep -qe "/dev/.* /tmp " /proc/mounts ; then
+    permem=60
+    id44="1"
+    # Hack, if more than 2,5G RAM use 40% of Ram and write vmem into Ram as well
+    # (40% vmware | 40% confdir(vmem...) | 20% host
+    # VMplayer 2+ issue
+    # TODO: makes this sense for vbox?
+    #if [ "${totalmem}" -ge "2500" ]; then
+      #permem=40
+      #rmdir ${snapshotdir}
+      #snapshotdirold=${snapshotdir}
+      #snapshotdir=/dev/shm/${self}/${USER}/${VM_ID}
+      #mkdir -p ${snapshotdir}
+      #ln -sf ${snapshotdir} ${snapshotdirold}
+    #fi
+  fi
+  mem=$(expr ${totalmem} / 100 \* ${permem})
+  if [ "${id44}" = "1" ]; then
+    memhost=$(expr ${totalmem} - ${mem})
+  else
+    memhost=$(expr ${totalmem} - ${mem} - ${mem})
+  fi
+  #permem=40
+  #mem=$(expr ${totalmem} * ${permem})
+  if [ "${mem}" -lt "256" ] || [ "${memhost}" -lt "256" ]; then
+    writelog "Memory out of range: ${mem} MB (guest) / ${memhost} MB (host)!"
+    writelog "Min. 256 MB for host and guest!"
+    exit 1
+  fi
+fi
+
+writelog "Diskimage:"
+writelog "\tMachine diskfile:\t\t$vmpath"
+writelog "Virtual Hardware:"
+writelog "\tGuest RAM:\t\t${mem} MB"
 # echo nur wenn memhost gesetzt
-#[ -n "${memhost}" ] && writelog "\tHost RAM:\t\t${memhost} MB"
-#writelog "\tMAC address:\t\t$macaddr"
-#writelog "\tNetwork card:\t\t${vb_network_card}"
-#writelog "\tNetwork kind:\t\t${network_kind}"
-# TODO: server start activate via xml, etc...
-#writelog "\tGuest VRDP port:\t${vrdpport}"
-#writelog "\tCD-ROM1:\t${cdrom0}"
-#writelog "\tCD-ROM2:\t${cdrom1}"
-#writelog "\tFloppy_A:\t${floppy0}"
-#writelog "\tFloppy_B:\t${floppy1}"
-#writelog "\tShared Folders 'home':\t/home/${USER}"
-#
+[ -n "${memhost}" ] && writelog "\tHost RAM:\t\t${memhost} MB"
+writelog "\tMAC address:\t\t$macaddr"
+
 ################################################################################
 ### Pepare and configure virtual machine and disk image
 ################################################################################
-#
-# TODO: date wichtig?
-#date="$(date +%Y-%m-%dT%H:%M:%SZ)"
-#. ${PLUGINCONFVIRTUALBOX}/virtualbox.include >"${VBOX_USER_HOME}/VirtualBox.xml"
-#
-# shortened date YYYY-MM-DD
-#date=${date%T*}
-#. ${PLUGINCONFVIRTUALBOX}/machine.include >"${machconfig}"
-#
-# add rw share to vm, if existing
-#if [ -n "${rwshare}" ]; then
-#  sharedf='<SharedFolder name="share"'
-#  sharedf="${sharedf} hostPath=\"${rwshare}\" writable=\"true\"/>"
-#  sed -i "s,</SharedFolders>,  ${sharedf}\n      </SharedFolders>," \
-#    "${machconfig}"
-#  writelog "\tShared Folders 'share':\t${rwshare}"
-#fi
-#
-# add ssh port if linux and NAT
-#if [ "${vmostype}" = "Linux26" ] && [ "${network_kind}" = "NAT" ]; then
-#  vmsshport="220${VM_ID}"
-#  extradataitem='<ExtraDataItem name="VBoxInternal/Devices' \
-#  extradataitem="${extradataitem}/${network_card}/0/LUN#0/Config/ssh/"
-#  extradataguestport='GuestPort" value="22"/>'
-#  extradatahostport="HostPort\" value=\"${vmsshport}\"/>"
-#  extradataprotocol='Protocol" value="TCP"/>'
-#  sed -i "s,</ExtraData>,  ${extradataitem}${extradataguestport}\n\
-#      ${extradataitem}${extradatahostport}\n\
-#      ${extradataitem}${extradataprotocol}\n\
-#    </ExtraData>," "${machconfig}"
-#  writelog "\tGuest SSH port:\t\t${vmsshport}"
-#fi
-#
-#cat ${OPENSLX_DEFAULT_DIR}/plugin-repo/virtualbox/empty-diff.vdi.gz | \
-#  gunzip > "${snapshotdir}/{${snapshotuuid}}.vdi"
-#
+
+. ${PLUGINCONFXEN}/machine.include > ${conffile}
+
 ################################################################################
 ### finally set env for run-virt.sh
 ################################################################################
-#
-# wait for a certain command to settle
-# get the PID of the right process
-# TODO: not very good! But seems to work
-# TODO: not needed? KILL!!!
-#VBMANPID=$(pstree -p | grep VBoxXPCOMIPCD | grep -ivE "VirtualBox|VBoxHeadless"\
-  | sed -e "s/.*VBoxXPCOMIPCD(\(.*\)).*/\1/")
-#for i in $(echo ${VBMANPID}); do
-#  kill -9 ${VBMANPID} >/dev/null 2>&1
-#done
-# TODO: OLD Version, NOW: KILL process
-#VBMANPID=$(pstree -p | grep VBoxXPCOMIPCD | grep -ivE "VirtualBox|VBoxHeadless"\
-#  | sed -e "s/.*VBoxXPCOMIPCD(\(.*\)).*/\1/" | tail -n 1)
-#for i in {0..999}; do
-#  ps aux | grep -v grep | grep VBoxXPCOMIPCD | grep -q " ${VBMANPID} " || break
-#  if [ $i -eq 999 ]; then
-#    kill -9 ${VBMANPID} >/dev/null 2>&1
-#    writelog "Process ID ${VBMANPID} did not finish, killing!"
-#  fi
-#done
-#
+
 # set the variables appropriately (several interfaces with different names)
-#VIRTCMD=$(which VirtualBox 2>/dev/null)
-#VIRTCMDOPTS="--startvm ${machineuuid} --start-running"
-#
-# SDL tests
-#VIRTCMDSDL=$(which VBoxSDL 2>/dev/null)
-#VIRTCMDOPTSSDL="--startvm ${machineuuid} --fullscreen --hwvirtex --memory 1024 \
-#  --fixedmode 1680 1050 24 --hostkey 302 0"
-#
+VIRTCMD=$(which xm 2>/dev/null)
+VIRTCMDOPTS="create ${conffile}"
+
 # set headless mode
-#VIRTCMDHL=$(which VBoxHeadless 2>/dev/null)
-#VIRTCMDOPTSHL="-s ${machineuuid}"
+VIRTCMDHL=$(which xm 2>/dev/null)
+VIRTCMDOPTSHL="create ${conffile}"