Re: [PATCH] Search the LAPIC's for one that will accept a PIC interrupt.

[Avi Kivity <avi@redhat.com>]

On 06/22/2010 02:49 PM, Gleb Natapov wrote:
>
>
>> There's a slight issue in that if an interrupt happens while a vcpu
>> is turning off LVT0.ExtInt, the interrupt gets lost.  But this is
>> better than what we have now.
>>
>>      
> We can check pic output after LVT0.ExtInt is configured.
>
>    

Right.

>> btw, I think virtual wire refers to:
>>
>>    pic ->  ioapic(ExtInt) ->  (apic bus) ->  lapic
>>
>> (virtual wire since the interrupt is passed over the apic bus, not a
>> real wire)
>>
>> while our configuration is
>>
>>    pic ->  lint0 ->  lapic lvt0 (ExtInt)
>>
>>      
> I saw both referred as virtual wire, may be erroneous.
>
> How is the mode where lapic is disabled and pic interrupts are delivered
> directly to cpu is called?
>    

I'm just guessing based on the name, no idea really.

-- 
error compiling committee.c: too many arguments to function