Install the qemu-full package (or qemu-base for the version without GUI) and below optional packages for your needs: When used as a virtualizer, QEMU achieves near native performances by executing the guest code directly on the host CPU. QEMU can use other hypervisors like Xen or KVM to use CPU extensions ( HVM) for virtualization. By using dynamic translation, it achieves very good performance. an ARM board) on a different machine (e.g. When used as a machine emulator, QEMU can run OSes and programs made for one machine (e.g. Retrieved from 'Http:// to the QEMU about page, 'QEMU is a generic and open source machine emulator and virtualizer.' Fortunately, it is already distributed as RPM, so all one needs to doing is: However, guest must has the GA installed. One thing have been already mentioned-the domain configuration for virtio serial port. If You don't change the name, you'll need to the it to Qemu GA as well: Vir_domain_shutdown_default = 0,vir_domain_shutdown_acpi_power_btn = (1 For example, virDomainShutdownFlags supports: Meanwhile, the guest agent May is used internally by several supported Libvirt APIs, often by passing flags to request its Use. If you don't mind using libvirt-qemu.so, you can use the virDomainQemuAgentCommand API (exposed by Virsh Qemu-agent-command) Aware that's unsupported, and any changes your make to the agent that's change state behind Libvirt's back may cause Li Bvirt to misbehave. Libvirt does not guarantee any, the guest agent of direct use.

' attribute of the element, and Libvirt would m Anage things automatically on your behalf. If you use Libvirt 1.0.6 or newer, you can omit the path= '.

In other words, one needs to add the his/her domain XML under : To is able to use GA users needs to create Virtio serial port with special name _agent.0. There is some attempts to allow applications to use QEMU Monitor for communication with GA, but virtio serial port should remain supported. However, guest agent (GA) is not bullet proof, and hostile guest OS can send spurious replies.Ĭurrently, QEMU exposes GA via Virtio serial port. For example, freezing and thawing filesystems, entering suspend. It is a daemon program running inside the domain which are supposed to help management applications with executing function s which need assistance of the guest OS.

Qemu guest agent tutorial