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RE: [Xen-devel] Integrate kqemu emulation into xen hypervisor possible?

To: "Samuel Thibault" <samuel.thibault@xxxxxxxxxxxxx>
Subject: RE: [Xen-devel] Integrate kqemu emulation into xen hypervisor possible?
From: "Ross S. W. Walker" <rwalker@xxxxxxxxxxxxx>
Date: Tue, 1 Apr 2008 11:41:24 -0400
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Thread-topic: [Xen-devel] Integrate kqemu emulation into xen hypervisor possible?
Samuel Thibault wrote:
> Ross S. W. Walker, le Tue 01 Apr 2008 11:19:35 -0400, a écrit :
> > I was wondering if now that the kqemu source has been GPL'd if it was
> > possible if it's functionality could be incorporated into the Xen
> > hypervisor to provide full virtualization on hardware that doesn't
> > support it?
> What would be the benefit, compared to just running qemu in 
> user space?

A higher performance of the VM as opposed to running it strictly
in full emulation mode in user space.

Here is the technical page of the project:


Maybe it just can't be done, I don't know the internal architecture
of the hypervisor to make that call.

At a minimum how about putting back in the full emulation features
of qemu so one can run and manage a fully emulated VM in Xen
without having to make any changes to the system. Then maybe
some brilliant mind can figure a way to make it run better.


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