KVM的windows ballooning配置

1. for guest xml desc:

 

<memballoon model='virtio'/>

一定要设置<currentMemory>，这个bollon没有起作用

 

2. 在windows guest里面安装ballooning驱动：

  a) 下载并安装devcon, http://support.microsoft.com/kb/311272

  b) devcon install BALLOON.inf "PCI\VEN_1AF4&DEV_1002&SUBSYS_00051AF4&REV_00"

 

3. 重启guest, 使用qemu monitor测试:

virsh # qemu-monitor-command winxp --hmp "info balloon"

balloon: actual=1024

 

virsh # qemu-monitor-command winxp --hmp "balloon 512"

 

virsh # qemu-monitor-command winxp --hmp "info balloon"

balloon: actual=512