Re: [PATCH] KVM: VMX: Fix locking order in handle_invalid_guest_state

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On Thu, Jul 30, 2009 at 02:26:24PM +0300, Avi Kivity wrote:
> On 07/30/2009 02:16 PM, Gleb Natapov wrote:
>>> I think there's little reason now.  One thing we need to do is make it
>>> possible to call the injection code twice without entering the guest.  I
>>> think right now it assumes nothing has been injected.
>>>
>>>      
>> I Looked at this and it seems the current code handle this case.
>> Injection puts an event on a queue and if we haven't entered a guest
>> after this point on the next entry event is injected from the queue,
>> just like if injection failed due to IDT access.
>>
>>    
>
> Good (it was one of the goals of the original interrupt rework, ~2 years  
> ago)
>
But if we emulate an injection by playing with guest memory and
registers we have to be sure we do it only once.

--
			Gleb.
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