From mboxrd@z Thu Jan  1 00:00:00 1970
From: Avi Kivity <avi@redhat.com>
Subject: Re: Guest to host communication in kvm
Date: Thu, 09 Jun 2011 11:17:33 +0300
Message-ID: <4DF0819D.5050704@redhat.com>
References: <BANLkTi=cyi+iSZmbthnxAAdzoTn9uowOJg@mail.gmail.com>
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Cc: kvm@vger.kernel.org
To: Vaibhav Nipunage <sysprocoder@gmail.com>
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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