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Re: [Xen-devel] Should 'xm save' work, when using PCI pass through?

To: Tom Rotenberg <tom.rotenberg@xxxxxxxxx>
Subject: Re: [Xen-devel] Should 'xm save' work, when using PCI pass through?
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Wed, 23 Sep 2009 14:02:50 +0100
Cc: Ian Pratt <Ian.Pratt@xxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
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Well, you could try removing the warning check from xend and see what
happens...

 -- Keir

On 23/09/2009 13:51, "Tom Rotenberg" <tom.rotenberg@xxxxxxxxx> wrote:

> Why? if i send the domain to S3, and then save the PCI config space -
> isn't it enough?
> 
> On Wed, Sep 23, 2009 at 3:49 PM, Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
> wrote:
>> I'm not sure xend can save/restore passthrough state. In which case your
>> only option is to hot-unplug the PCI devices from the guest first.
>> 
>>  -- Keir
>> 
>> On 23/09/2009 12:16, "Tom Rotenberg" <tom.rotenberg@xxxxxxxxx> wrote:
>> 
>>> Well, i just tried sending the domain to S3, and then saving it's
>>> state, but i got an error saying, that 'migration isn't allowed with
>>> pass-through devices'.
>>> How can i workaround this?
>>> 
>>> On Wed, Sep 23, 2009 at 1:45 PM, Ian Pratt <Ian.Pratt@xxxxxxxxxxxxx> wrote:
>>>>> I have a domain with PCI pass-through, and i would like to save it,
>>>>> and restore it later (maybe even after rebooting the dom0). Is it
>>>>> possible to do this using 'xm save' & 'xm restore', although my domain
>>>>> has PCI pass through?
>>>> 
>>>> You'll need to make sure the physical devices are shutdown. The best way of
>>>> doing this is to hot unplug them. You could also achieve this by putting
>>>> the
>>>> VM into S3 sleep before doing the save.
>>>> 
>>>> Ian
>>>> 
>>> 
>>> _______________________________________________
>>> Xen-devel mailing list
>>> Xen-devel@xxxxxxxxxxxxxxxxxxx
>>> http://lists.xensource.com/xen-devel
>> 
>> 
>> 



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