Re: [Qemu-discuss] send command into guest OS through QEMU

[Mike Lovell]

On 02/08/2012 11:35 PM, Wayne Huang wrote:
>                I'm running varieties of OS on QEMU.
>
>                When I need to execute some command in guest OS
>
>                I need to connect to every guest separately, it take
> efforts to do these actions
>
>                so I wondered if there have a way that I can send
> command from the Host to guest OS in QEMU (like a remote shell through
> QEMU)
>
>                or any ideas that I can add this function to my QEMU ?
>
>                Thanks

i don't think any mechanism distributed with qemu that will do this. the 
best place to look for coding something to do it would probably be to 
look at qemu-ga, the guest agent that is part of qemu. qemu-ga runs as a 
process in the guest and communicates over a virtio-serial connection. 
there has been some talk recently on the qemu-dev mailing list about 
features for qemu-ga but i don't remember if this was one of the items 
discussed. (it was mainly about merging qemu-ga with agents from ovirt 
and spice). http://wiki.qemu.org/Features/QAPI/GuestAgent is a qemu wiki 
page about the guest agent.

i hope that is enough to get you pointed in the right direction.

mike