Re: Jan Kiszka to maintain kvm-kmod

[Jan Kiszka <jan.kiszka@siemens.com>]

Avi Kivity wrote:
> On 10/26/2009 07:51 PM, Jan Kiszka wrote:
>> That forecast already promises the next rain
> 
> That would be me.  I think it's easily fixable, either by emulating user 
> return notifiers using preempt notifiers (sched_out -> on_user_return), 
> or by noping out user return notifiers completely and hooking the kvm 
> sched_out callback to call kvm_on_user_return.  Of course, we won't see 
> the performance gain, but that's expected.

I was playing with such an approach already. But something goes wrong
(GPF in kvm_set_shared_msr) when booting Win7. Will check without
kvm-kmod next.

Jan

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