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Re: [libvirt] [PATCH RESENT 02/12] libxl: PCI passthrough support



On 22.05.2013 16:33, Jim Fehlig wrote:
> Jim Fehlig wrote:
>> Daniel P. Berrange wrote:
>>   
>>> On Wed, Apr 10, 2013 at 04:44:43AM +0200, Marek Marczykowski wrote:
>>>   
>>>     
>>>> ---
>>>>  src/libxl/libxl_conf.c | 72 ++++++++++++++++++++++++++++++++++++++++++++++++++
>>>>  src/libxl/libxl_conf.h |  2 ++
>>>>  2 files changed, 74 insertions(+)
>>>>     
>>>>       
>>> This needs todo more than just create the config. You need to use
>>> the libvirt PCI APIs to validate that it is safe to assign the
>>> devices requested, and track which devices are given to which
>>> guest, to avoid concurrent assignemnt to 2 guests. Basically I'd
>>> expect this to borrow all the code currently in the QMEU driver
>>> related to the 'activePciHostdevs' and 'inactivePciHostdevs'
>>> data structures.
>>>   
>>>     
>>
>> Right.  Chunyan already posted such a patch series [1], but Laine noted
>> that it would be useful to maintain the state of PCI device assignment
>> for coordination among multiple drivers.  Chunyan posted a design [2]
>> for a "hostdev passthrough driver", and IIRC she has started coding
>> after receiving feedback from the list.
>>   
> 
> I see that Chunyan has now posted patches for this work
> 
> https://www.redhat.com/archives/libvir-list/2013-May/msg01162.html
> 
> Could you can help review and test those?

Sure, will look at it tomorrow.

-- 
Best Regards,
Marek Marczykowski
Invisible Things Lab

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