Features/GuestAgent - QEMU
wiki.qemu.org › Features › GuestAgentThis support is targeted for a future QAPI-based rework of QMP, however, so currently, for QEMU 0.15, the guest agent is exposed to the host via a separate QEMU chardev device (generally, a unix socket) that communicates with the agent using the QMP wire protocol (minus the negotiation) over a virtio-serial or isa-serial channel to the guest.
Qemu guest agent - Libvirt Wiki
https://wiki.libvirt.org/page/Qemu_guest_agent16.07.2018 · QEMU Guest Agent It is a daemon program running inside the domain which is supposed to help management applications with executing functions which need assistance of the guest OS. For example, freezing and thawing filesystems, entering suspend. However, guest agent (GA) is not bullet proof, and hostile guest OS can send spurious replies.
Qemu-guest-agent - Proxmox VE
pve.proxmox.com › wiki › Qemu-guest-agentapt-get install qemu-guest-agent and on Redhat based systems (with yum): yum install qemu-guest-agent Depending on the distribution, the guest agent might not start automatically after the installation. Start it either directly with systemctl start qemu-guest-agent (should work for most distributions) or reboot the guest. Windows
Features/GuestAgent - QEMU
https://wiki.qemu.org/Features/GuestAgentqemu-ga uses the guest-sync or guest-sync-delimited command to address the problem of re-sync'ing the channel after [re-]connection or client-side timeouts. These are described below. guest-sync The guest-sync request/response exchange is simple. The client provides a unique numerical token, the agent sends it back in a response: