[one-users] V4.4: KVM Hyper-V Enlightenments

[Shankhadeep Shome]

Thanks Michael, this is really useful for our deployment, we have a mix of
windows and Linux VMs and this would certainly help, I'm sure the vapic
feature will be especially useful considering the wonky way windows handles
apic shutdown calls at the moment.


On Fri, Dec 13, 2013 at 6:21 AM, Ruben S. Montero
<rsmontero at opennebula.org>wrote:

> Hi Michael,
>
> Thanks for your contribution!!!. I've filled a bug for this:
>
> http://dev.opennebula.org/issues/2567
>
> Cheers Ruben,
>
> PS: Probably the dev mailing list is better to discuss this.
>
>
> On Fri, Dec 13, 2013 at 11:26 AM, Michael Kutzner <
> michael.kutzner at virtion.de> wrote:
>
>> Hi,
>>
>> another small patch I would like to share.
>>
>> Newer versions of libvirt and kvm support the cpu feature
>>   hv_spinlocks, hv_relaxe
>> (e.g. see here http://wiki.qemu.org/ChangeLog/1.1)
>>
>> To make that work in ON4.4 I attached a small patch, so you can configure
>> that
>> in sunstone (Templates -> OS-Booting -> Features)
>> and the XML is added to the features section of deployment.xml
>>
>> It adds:
>>         <features>
>>                 …
>>                 <hyperv>
>>                         <relaxed state='on'/>
>>                         <vapic state='on'/>
>>                         <spinlocks state='on' retries='4096'/>
>>                 </hyperv>
>>         </features>
>>
>> Beware that you need a current libvirt and qemu before activating that
>> feature.
>> (Dont know, if that is already supported in e.g. RH6.x but I suppose so).
>>
>> See also here:
>> http://www.linux-kvm.org/wiki/images/0/0a/2012-forum-kvm_hyperv.pdf
>>
>>
>> Best, Michael
>>
>>
>> _______________________________________________
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>> Users at lists.opennebula.org
>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>
>>
>
>
> --
> --
> Ruben S. Montero, PhD
> Project co-Lead and Chief Architect
> OpenNebula - Flexible Enterprise Cloud Made Simple
> www.OpenNebula.org | rsmontero at opennebula.org | @OpenNebula
>
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>
>
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