[libvirt-users] Libvirt supported qemu-ga commands

[procmem]

Where can I find the full list of libvirt supported qemu-ga commands?
The docs [0] imply virDomainQemuAgentCommand bypasses libvirt and is not
recommended.

I am looking to pass suspend/resume events from the host to the guest
and then have the guest act on this internally. Your help is appreciated.


[0] https://wiki.libvirt.org/page/Qemu_guest_agent

[procmem]

Post by procmem
Where can I find the full list of libvirt supported qemu-ga commands?
The docs [0] imply virDomainQemuAgentCommand bypasses libvirt and is not
recommended.
I am looking to pass suspend/resume events from the host to the guest
and then have the guest act on this internally. Your help is appreciated.
[0] https://wiki.libvirt.org/page/Qemu_guest_agent

Did some RTFMing [1], I guess if I go by the shutdown example I can
suspend/resume via guest agent with these commands?

virsh suspend --mode=agent
virsh resume --mode=agent



[1]
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/virtualization_deployment_and_administration_guide/sect-using_the_qemu_guest_virtual_machine_agent_protocol_cli-libvirt_commands

[Daniel P. Berrangé]

Post by procmem
Where can I find the full list of libvirt supported qemu-ga commands?
The docs [0] imply virDomainQemuAgentCommand bypasses libvirt and is not
recommended.
I am looking to pass suspend/resume events from the host to the guest
and then have the guest act on this internally. Your help is appreciated.

By suspend/resume, do you mean ACPI S3 suspend-to-ram events ?

If so, that doesn't require guest agent involvement at all. Just requires

virsh dompmsuspend
virsh dompmwakeup

Regards,
Daniel

[procmem]

Post by Daniel P. Berrangé

Post by procmem
Where can I find the full list of libvirt supported qemu-ga commands?
The docs [0] imply virDomainQemuAgentCommand bypasses libvirt and is not
recommended.
I am looking to pass suspend/resume events from the host to the guest
and then have the guest act on this internally. Your help is appreciated.

By suspend/resume, do you mean ACPI S3 suspend-to-ram events ?
If so, that doesn't require guest agent involvement at all. Just requires
virsh dompmsuspend
virsh dompmwakeup
Regards,
Daniel

I see. Thats simpler but will the guest be "sentient" about the fact
that it had just been resumed? I need it to know so that it triggers
specific events in this case.

[Daniel P. Berrangé]

Post by procmem

Post by Daniel P. Berrangé

Post by procmem
Where can I find the full list of libvirt supported qemu-ga commands?
The docs [0] imply virDomainQemuAgentCommand bypasses libvirt and is not
recommended.
I am looking to pass suspend/resume events from the host to the guest
and then have the guest act on this internally. Your help is appreciated.

By suspend/resume, do you mean ACPI S3 suspend-to-ram events ?
If so, that doesn't require guest agent involvement at all. Just requires
virsh dompmsuspend
virsh dompmwakeup
Regards,
Daniel

I see. Thats simpler but will the guest be "sentient" about the fact
that it had just been resumed? I need it to know so that it triggers
specific events in this case.

This works the same way as it does on physical hardware.


Regards,
Daniel