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RE: [Xen-devel] Linux pvops ballooning pv only?


  • To: "'Dan Magenheimer'" <dan.magenheimer@xxxxxxxxxx>, "'Xen-Devel'" <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "AP Xen" <apxeng@xxxxxxxxx>
  • Date: Tue, 15 Jun 2010 10:52:09 -0700
  • Cc: 'Jeremy Fitzhardinge' <jeremy@xxxxxxxx>
  • Delivery-date: Tue, 15 Jun 2010 10:53:09 -0700
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Ballooning does work for HVM domains. I applied Alex Bligh's patch
(http://blog.alex.org.uk/archives/23) to the stock Ubuntu 10.04 64-bit
kernel and was able to balloon up and down. There does seem to be an
accounting bug that I am debugging. The check you are talking about is of
course not present. It would be a shame if the upstream driver had that
check :(

Thanks,
AP
> -----Original Message-----
> From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-devel-
> bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Dan Magenheimer
> Sent: Monday, June 14, 2010 10:12 AM
> To: Xen-Devel (xen-devel@xxxxxxxxxxxxxxxxxxx)
> Cc: Jeremy Fitzhardinge
> Subject: [Xen-devel] Linux pvops ballooning pv only?
> 
> I was just looking at the Linux upstream balloon driver
> and noticed that balloon_init fails if !xen_pv_domain().
> Why does ballooning not work for an HVM domain?  Is
> ballooning just missing or untested functionality for
> HVM, or is there a good technical reason why it won't work?
> 
> Thanks,
> Dan
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel


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