[Qemu-discuss] Qemu memory ballooning for Windows guest

[Nguyễn Trường Sơn]

Hi all

I tried to set the ballooning for Windows guest.

My environment:

- OS: Centos 6.6

- Libvirt 1.2.14 (build from source)

- Qemu: 2.4.0.1 (build from source)

- VM :Windows 7 with installed virtio driver

Libvirt xml config contain:

<memory unit='KiB'>4524288</memory>
<currentMemory unit='KiB'>1524288</currentMemory>

<devices>
    <memballoon model='virtio'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
      <stats period='10'/>
    </memballoon>
  </devices>

But the guest actual memory is alway 1524288 (use virsh dommeminfo), vm view memory is 
4524288

And the memory for qemu process is between 1524288 and 4524288.

I see that ballooning is ok for linux:

- Acctual memory < 1524288 (ballooning)

- Current VM memory = 1524288 

- Max memory for hotplug = 4524288

Can some one show me how to run it with Windows guest.

Thanks

--

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Nguyễn Trường Sơn
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