From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: Mapping guest memory from another process?
Date: Mon, 09 Sep 2013 12:01:26 +0200
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To: Cutter 409 <cutter409@gmail.com>
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Il 04/09/2013 19:10, Cutter 409 ha scritto:
> Thanks, I'll try that. Do you know of any way to get at the VCPU
> structure from another process? I'm looking to have an event triggered
> from the guest which will notify my application. In Xen I use an event
> channel, and then I can call a function to retrieve the relevant VCPU
> context.

I think you could use the ivshmem device.

http://lwn.net/Articles/380869/

To QEMU, your application would look like a shared memory server.

Paolo