Re: VMX ideas

Avi Kivity
2008-11-02T10:28:11Z

Gerd Hoffmann wrote:
>> 3. Create a root mode bloat framework
>>
>
> 4. Enter vmx root mode when the first user opens /dev/kvm and leave it
> when nobody uses it any more?
>
> Also note that there has been some discussion on lkml to move vmx-root
> on/off out of the kvm module into the kernel. There are a few places
> where it would be useful for the kernel to handle that without the kvm
> module being involved, crashdump kexec for example. With that and some
> locking in place (so only one can use vmx-root at a time) and
> hypervisors being friendly to each other and grab vmx-root only when
> they have a guest to run we should be set

That means that although kvm is loaded it may be unable to service
/dev/kvm... something I'd like to avoid.

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