On 06/14/2016 04:31 AM, qinglong.dong@horebdata.cn wrote:
Hi, all I want to modify three arguments ram, vram and vgamem in the qemu command where virtual machines are created. I found that the arguments had default values in libvirt and I wonder how to modify them. Could they be modified in a certain xml file or in a before_vm_start VDSM hook?(http://www.ovirt.org/documentation/draft/video-ram/)
Yes, hook is the way to go.
I dont't know where the xml file is or The xml is created every time you start a vm and deleted every time you shutdown a vm. A hook can change the resulting xml before start the vm.
how to write the hook.
Here some examples: https://github.com/oVirt/vdsm/tree/master/vdsm_hooks
Anyone can help? Thanks!
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