Re: Graphics pass-through

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On 2011-05-11 13:25, Avi Kivity wrote:
> On 05/09/2011 06:48 PM, Alex Williamson wrote:
>>>  That's an interesting trace! We'll check this here, but I bet it
>>>  contributes to the problems. Our FX 3800 has 1G memory...
>>
>> Yes, qemu leaves far too little MMIO space to think about assigning
>> graphics cards.  Both of my cards have 512MB and I hacked qemu to leave
>> a bigger gap via something like:
>>
> 
> What about 64-bit BARs?

Aren't they backward compatible? Or do you think some guest drivers may
assume to find their 64-bit capable bars also registered as such and get
upset when seeing them as 32-bit ones?

Jan

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Corporate Competence Center Embedded Linux
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