[ubuntu] KVM guest display not detected

Hi all,

Host ubuntu 14.04
Guest ubuntu 14.04
KVM

Guest couldn't have the right driver for display which couldn't be detected, only showing "unknow display"

Please advise how to fix it. Is there some like "guest addition" on KVM?

Daemon to access to guest virtual machine through virtio serial - Not installed

Guest-side qemu-system agent, qemu-guest-agent - not installed

Regards
satimis