[libvirt-users] Windows 7 guest not starting with HyperV features enabled

Aleksei alex3kov at zoho.com
Mon Oct 10 16:43:38 UTC 2016


I have a Windows 7 SP1 Pro 64-bit VM which works fine on libvirt 2.3.0 
and Qemu 2.7.0.

If I enable HyperV features 
(https://libvirt.org/formatdomain.html#elementsFeatures) like "relaxed", 
"spinlocks" etc - VM doesn't boot. "Starting Windows" text appears for 
~2 seconds (no flying dots, no logo) and then it just goes to black 
screen. If I switch HyperV features back off, it boots normally again.

Running VM with debuggging enabled (virsh --log win7_hyperv.log --debug 
1 start win7) doesn't produce any errors in the log. There are no logs 
for that attempted boot in the guest either - apparently it doesn't get 
to the point when Windows starts logging.

Attaching VM xml definition (with HyperV features enabled).

/--Regards, Aleksei/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/libvirt-users/attachments/20161010/ff62b3d8/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: win7.xml
Type: text/xml
Size: 5947 bytes
Desc: not available
URL: <http://listman.redhat.com/archives/libvirt-users/attachments/20161010/ff62b3d8/attachment.xml>

More information about the libvirt-users mailing list