Just to add to my own question:

To disable HyperV enlightments you have to make sure that these options are NOT set:

"hv_time,hv_relaxed,hv_spinlocks=0x2000"

Can anyone tell me how to do / where to check that in proxmox?

MJ

On 7-11-2016 18:50, lists wrote:
Hi,

We are trying to migrate a win7 uefi machine into proxmox, and so far
we're failing. Done a lot of reading, and what seems to be the problem:

https://bugs.launchpad.net/qemu/+bug/1593605

My conclusion ius that we should be able to run win7/uefi on qemu, but
we need to disable the disable HyperV enlightments.

And this is where we're stuck now, google tells me numerous to ENABLE
them, for example:

virt-xml $VMNAME --edit --features
hyperv_relaxed=on,hyperv_vapic=on,hyperv_spinlocks=on,hyperv_spinlocks_retries=8191


But proxmox does not know virt-xml, and we need to DISABLE them, using
(what we understand) cpu flags.

Could someone help us in the right direction?

MJ
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