---Submitted by linuxosa --

Now I am able to mount an NFS fold from Android-x86 running as a KVM guest (VNC as 
display). The steps I did:

1. Using eeepc-20090820.iso and install it;
2. Boot to debug mode;
3. modprobe sunrpc lockd nfs;
4. netcfg eth0 dhcp;
5. mount -t nfs -o nolock 192.168.xx.xxx:/path/nfs /sdcard, must use the busybox 
mount here, toolbox mount doesn't work in my case, always report "Invalid argument". 
I don't know why.
6. then exit the shell so you enter android;
7. Alt+F1 to enter shell again;
8. again: netcfg eth0 dhcp;
9. setprop net.dns1 your-dns-server;
10. route add default gw your-default-gw;

At this point, I am able to browser internet and use OI file manager to access the 
files in the nfs shared folder. 

The virsh xml file for the VM:

<domain type='kvm'>
  <name>Android</name>
  <memory>524288</memory>
  <currentMemory>524288</currentMemory>
  <vcpu>2</vcpu>
  <os>
    <type arch='i686' machine='pc'>hvm</type>
    <boot dev='hd'/>
    <boot dev='cdrom'/>
  </os>
  <features>
    <acpi/>
    <pae/>
  </features>
  <clock offset='localtime'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>preserve</on_crash>
  <devices>
    <emulator>/usr/bin/kvm</emulator>
    <!--disk type='file' device='cdrom'>
      <source file='/home/linuxosa/VM/eeepc-20090820.iso'/>
      <target dev='hdc' bus='ide'/>
    </disk-->
    <disk type='file' device='disk'>
      <source file='/home/linuxosa/VM/android.img'/>
      <target dev='hda' bus='ide'/>
    </disk>
    <interface type='bridge' model='rtl8139' >
      <model type='rtl8139' />
      <source bridge='br0'/>
      <target dev='vnet0'/>
    </interface>
    <input type='mouse' bus='ps2' />
    <graphics type='vnc' port='-1' autoport='yes' listen="0.0.0.0" />
    <video>
      <model type='vga' vram='9216' heads='1'/>
    </video>
    <sound model='ac97'/>
  </devices>
</domain>