#virt-install -n vmWinXP -r 512 -f /var/lib/libvirt/images/vmWinXP.img -s 10 -c /kvm/WinXP.iso --accelerate --os-type=windows --os-variant=winxp -v --vnc --nonetwork --noacpi

## virsh dumpxml vmWinXP
<domain type='kvm'>
  <name>vmWinXP</name>
  <uuid>f5c5b8df-3975-9e0a-9a5c-a8238091fa9a</uuid>
  <memory>524288</memory>
  <currentMemory>524288</currentMemory>
  <vcpu>1</vcpu>
  <os>
    <type arch='i686' machine='pc-0.12'>hvm</type>
    <boot dev='hd'/>
  </os>
  <features>
    <apic/>
    <pae/>
  </features>
  <clock offset='localtime'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
  <devices>
    <emulator>/usr/bin/kvm</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='raw'/>
      <source file='/kvm/vmWinXP.img'/>
      <target dev='hda' bus='ide'/>
      <address type='drive' controller='0' bus='0' unit='0'/>
    </disk>
    <disk type='file' device='cdrom'>
      <driver name='qemu' type='raw'/>
      <source file='/kvm/WinXP.iso'/>
      <target dev='hdc' bus='ide'/>
      <readonly/>
      <address type='drive' controller='0' bus='1' unit='0'/>
    </disk>
    <controller type='ide' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
    </controller>
    <serial type='pty'>
      <target port='0'/>
    </serial>
    <console type='pty'>
      <target type='serial' port='0'/>
    </console>
    <input type='tablet' bus='usb'/>
    <input type='mouse' bus='ps2'/>
    <graphics type='vnc' port='-1' autoport='yes' keymap='en-us'/>
    <video>
      <model type='vga' vram='9216' heads='1'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </video>
    <memballoon model='virtio'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </memballoon>
  </devices>
</domain>

Sep 23 12:45:57 libvirtd: 12:45:57.694: warning : qemudParsePCIDeviceStrs:1422 : Unexpected exit status '1', qemu probably failed
Sep 23 12:46:35 libvirtd: 12:46:35.266: warning : qemudParsePCIDeviceStrs:1422 : Unexpected exit status '1', qemu probably failed
Sep 23 12:46:39 libvirtd: 12:46:39.570: warning : qemudParsePCIDeviceStrs:1422 : Unexpected exit status '1', qemu probably failed
# virsh start vmWinXP;virsh list --all;netstat -nap | grep 5900;
Domain vmWinXP started

 Id Name                 State
----------------------------------
 14 vmWinXP              running

tcp        0      0 127.0.0.1:5900          0.0.0.0:*               LISTEN      2365/kvm
# virsh -c qemu:///system list --all
 Id Name                 State
----------------------------------
  - vmWinXP              shut off

# uname -a
Linux 2.6.26-2-686 #1 SMP Thu Jan 27 00:28:05 UTC 2011 i686 GNU/Linux