Hi Gabriel,
I'm personally not familiar with any code :) but that is the reaason my
colegues are in CC here.
What I believe I miss here (please correct me if I'm wrong) is the same
hyperV relaxed feature for also "Windows 7" OS type (although not that
important) but also for "Windows PV" OS type, since we run our customers
VMs with virtio, and we need to choose "Windows PV" to actually use virtio
paravirtalization on KVM side.
Thanks a lot for the specific code, I believe this is a good starting point
for us - and please feel free to correct me in my opinions.
Thanks again,
Andrija
On 5 October 2016 at 14:59, Gabriel Beims Bräscher <gabrasc...@gmail.com>
wrote:
> Hi Andrija,
>
> Seems that this issue has been forgotten for a while, thanks for bringing
> it back.
>
> I did a fast review on the code (current Apache CloudStack master) and
> found something that might be useful.
> The method
> com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.
> createVMFromSpec(VirtualMachineTO)
> has some commented lines when adding features (lines 1947-1953), those
> lines were supposed to set the HyperV relaxed feature in case of Windows
> Server 2008.
>
> /*
> * if (vmTO.getOs().contains("Windows Server 2008") &&
> hostOsVersion != null && ((hostOsVersion.first() == 6 &&
> hostOsVersion.second() >= 5) || (hostOsVersion.first() >= 7))) {
> * LibvirtVMDef.HyperVEnlightenmentFeatureDef hyv = new
> LibvirtVMDef.HyperVEnlightenmentFeatureDef();
> * hyv.setRelaxed(true);
> * features.addHyperVFeature(hyv);
> * }
> */
>
>
> Would it be a starting point? Are you familiar with this code?
>
> Cheers,
> Gabriel.
>
> 2016-10-04 5:52 GMT-03:00 Andrija Panic <andrija.pa...@gmail.com>:
>
> > Hi,
> >
> > may I please get anyones opinion on this:
> > https://issues.apache.org/jira/browse/CLOUDSTACK-8353
> >
> > We woul like to solve it internally and comit to comunity - just need
> some
> > opinions or advices.
> >
> > "There is a bug in KVM that causes a BSOD for Windows 2008 R2 and 7 or
> > earlier. fix was added in libvirt 1.1.1 The fix requires enabling the
> > "hv_relaxed" option for the affected VMs.
> > "
> >
> > thanks
> >
> > Andrija Panić
> >
>
--
Andrija Panić
