[Qemu-devel] Re: qemu-kvm-0.11 regression, crashes on older guests with virtio network

[Avi Kivity]

On 10/29/2009 02:23 PM, Michael S. Tsirkin wrote:
> On Thu, Oct 29, 2009 at 09:16:43AM +0000, Mark McLoughlin wrote:
>    
> > I agree we shouldn't exit in this scenario
> >      
> virtio in qemu generally seems to handle guest errors
> by calling exit(2). This probably makes it easier to notice
> the problems, but is likely not the right thing to do.
>    

Right, the thinking was the guest is shooting itself in the foot and 
hitting, but a guest can delegate control of a device to unprivileged 
code (for example device assignment in kvm), which would allow this 
unprivileged code to kill the guest.

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