Re: [PATCH] Use a table to dispatch IO requests in kvmctl

[Anthony Liguori <aliguori-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>]

Avi Kivity wrote:
> Anthony Liguori wrote:
>>>
>>>>
>>>> QEMU uses an array for PIO but a table for MMIO.  I figured it 
>>>> would be best to just use the same table.
>>>
>>> Or the same array?
>>
>> Indexed by the address or just sorted and searchable?  MMIO addresses 
>> are rather sparse so the former seems like the only sane thing.  
>
> I'm betting that a plain unsorted array will beat anything else with 
> less than 50 entries.  Also that the difference will be swamped by 
> vmexit costs and by the actual emulation costs.
>
>> It also has to support subpage granularity.
>
> My patent pending unsorted array supports that out of the box.

heh :-)  Okay, I'll make the change.

Regards,

Anthony LIguori


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