Guest to host communication in kvm

Guest to host communication in kvm

[Vaibhav Nipunage]

Hello,

I am trying to understand the kvm code. I am writing simple code in
which I want to send some message or notification from the guest to
host (qemu-kvm).

I thought of implementing some hypercalls in which, on some condition
this hypercall will get called and it get handled in qemu-kvm. But I
didn't understand how to handle this in qemu-kvm.

Or is there any other better way to do this?

Please help me.

Thanks in advance.

Thanks,
Vaibhav

Re: Guest to host communication in kvm

[Avi Kivity]

On 06/08/2011 06:27 AM, Vaibhav Nipunage wrote:
> Hello,
>
> I am trying to understand the kvm code. I am writing simple code in
> which I want to send some message or notification from the guest to
> host (qemu-kvm).
>
> I thought of implementing some hypercalls in which, on some condition
> this hypercall will get called and it get handled in qemu-kvm. But I
> didn't understand how to handle this in qemu-kvm.
>
> Or is there any other better way to do this?

Look at

   cpu_register_io_memory()
   cpu_register_physical_memory()

or

   ioport_register()

-- 
error compiling committee.c: too many arguments to function