[PATCH 2/2] virtio reset support

Anthony Liguori aliguori at us.ibm.com
Mon Jan 28 14:47:55 PST 2008


Avi Kivity wrote:
> Anthony Liguori wrote:
>>
>> PCI-e has a common reset concept (warm and cold).  I've been looking 
>> around and I can't seem to find any common reset mechanism for PCI.  
>> Is FLR something that is per-device or a standard PCI mechanism?  If 
>> it's the former, than we've basically implemented FLR using this bit 
>> in the config space.
>>
>
> I believe it is a standard mechanism, albeit new, so perhaps many 
> devices don't implement it.

I don't have a copy of the PCI specification handy.  Can you dig up how 
it's implemented?  I don't see any references in my local documentation 
and I couldn't find anything in Linux that referenced it at the PCI level.

Regards,

Anthony Liguori




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