[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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