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What are the typical use cases for the Guest VM to talk to Hypervisor? I see 2 use cases mentioned on the Proxmox link (https://pve.proxmox.com/wiki/Qemu-guest-
by sthustfo 9d ago
What are the typical use cases for the Guest VM to talk to Hypervisor? I see 2 use cases mentioned on the Proxmox link (https://pve.proxmox.com/wiki/Qemu-guest-agent https://pve.proxmox.com/wiki/Qemu-guest-agent)
1. shutdown the guest
2. freeze the guest system during backup/snapshot
Just curious about other possible use cases.
- donmcronald 9d agoI think it would be useful for backup testing. Lots of VM backup software will boot a restored VM and screenshot the login screen. That’s useless IMO because you could be screenshotting an outdated restore without realizing. I think you could boot a network disconnected VM and communicate over vsock to assess the guest health. You’d need an agent in the VM, but I think it'd be worth it.
- teravor 9d agosome VMMs just straight up translate vsock from the guest to UDS on the host.
- touisteur 9d agoBuilding micromvs with no network support helps with isolation and (more) kernel surface reduction.
- orielhaim 9d ago[dead]
- remijouannet 8d agoaws is using it for aws nitro enclave, one of the use case for vsock is communication between guests on the same host