Re: [Qemu-devel] qvm86, kqemu and video speed

[Struan Bartlett <struan@praguespringpeople.org>]

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Struan Bartlett wrote:

> This has come up before, and it will come up again. Apparently, we 
> don't know whether Diego's BochsVGA source is open. However we do know 
> Filip Navarra's is (and I've posted what I have on 
> http://www.praguespringpeople.org/Struan/Software/QEMU/Drivers/ for 
> the interested).

P.S. I'm no expert Windows programmer - does anyone know what tools you 
need to compile this?

> Paul Brook wrote:
>
>>On Monday 11 April 2005 16:01, James Mastros wrote:
>>  
>>
>>>After that, I think the best thing to do is to move from emulating a
>>>standard video card to defining our own that maps from the operations
>>>that the OS calls its video driver on to the operations that SDL
>>>implements, leaving any that do not map simply for the OS to emulate, on
>>>the theory that it probably knows how to better then we do.  However,
>>>this is a much larger undertaking, as it requires learning the driver
>>>model of the guest OSes.
>>>    
>>>
>>
>>I agree that emulating a "custom" driver model should give better performance 
>>than emulating real hardware (VMware does this). However I think you should 
>>provide all the functionality you possibly can, even if the host doesn't 
>>provide native acceleration for it. It's always going to be faster to do 
>>something in software on the host than it is on the guest.
>>
>>Paul
>>
>>
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>>  
>>
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