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xen-devel
Re: [Xen-devel] Assigning contiguous memory to a driver domain
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To: |
Jeremy Fitzhardinge <jeremy@xxxxxxxx> |
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Subject: |
Re: [Xen-devel] Assigning contiguous memory to a driver domain |
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From: |
Tim Deegan <Tim.Deegan@xxxxxxxxxx> |
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Date: |
Tue, 21 Sep 2010 09:04:19 +0100 |
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Cc: |
Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Joanna Rutkowska <joanna@xxxxxxxxxxxxxxxxxxxxxx>, Wilk <konrad.wilk@xxxxxxxxxx>, Jan Beulich <JBeulich@xxxxxxxxxx>, Konrad, Rafal Wojtczuk <rafal@xxxxxxxxxxxxxxxxxxxxxx> |
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Tue, 21 Sep 2010 01:05:08 -0700 |
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At 01:45 +0100 on 21 Sep (1285033549), Jeremy Fitzhardinge wrote:
> > I may be too far behind on this thread, but aren't we only talking about
> > driver domains with passthrough? Is it even possible to migrate
> > driver domains yet?
>
> Not with devices attached. But there should be no problem in principle
> with detaching all the devices, migrating, the reattaching everything.
But would you want to? :)
If you did, you'd have to have a hook post-migrate for the kernel to try
and reconstitute contiguous areas that it cares about. At the moment
there's no way for the tools to know whether PFNs are contiguous by
chance or on purpose.
Tim.
--
Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Principal Software Engineer, XenServer Engineering
Citrix Systems UK Ltd. (Company #02937203, SL9 0BG)
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- Re: [Xen-devel] Assigning contiguous memory to a driver domain, (continued)
- Re: [Xen-devel] Assigning contiguous memory to a driver domain, Rafal Wojtczuk
- Re: [Xen-devel] Assigning contiguous memory to a driver domain, Jan Beulich
- Re: [Xen-devel] Assigning contiguous memory to a driver domain, Rafal Wojtczuk
- Re: [Xen-devel] Assigning contiguous memory to a driver domain, Jan Beulich
- Re: [Xen-devel] Assigning contiguous memory to a driver domain, Konrad Rzeszutek Wilk
- Re: [Xen-devel] Assigning contiguous memory to a driver domain, Jeremy Fitzhardinge
- Re: [Xen-devel] Assigning contiguous memory to a driver domain, Konrad Rzeszutek Wilk
- Re: [Xen-devel] Assigning contiguous memory to a driver domain, Jeremy Fitzhardinge
- RE: [Xen-devel] Assigning contiguous memory to a driver domain, Dan Magenheimer
- Re: [Xen-devel] Assigning contiguous memory to a driver domain, Jeremy Fitzhardinge
- Re: [Xen-devel] Assigning contiguous memory to a driver domain,
Tim Deegan <=
- Re: [Xen-devel] Assigning contiguous memory to a driver domain, Joanna Rutkowska
- Re: [Xen-devel] Assigning contiguous memory to a driver domain, Konrad Rzeszutek Wilk
- Re: [Xen-devel] Assigning contiguous memory to a driver domain, Goswin von Brederlow
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