Hi,

I can't get our Windows 7 VM (Ultimate x64) to run with more than one vCPU enabled.

 

Installation attempts failed until I left it pinned to the last vCPU. Now, with a working, running installation, if I enable any other cores, it crashes while booting Windows or hangs while trying Windows startup repair. It's an i7-2600 which should have VT-d.

 

Please help! This has completely stalled our NVR project.

 

 <vcpu placement='static'>1</vcpu>
  <cputune>
    <vcpupin vcpu='0' cpuset='7'/>
  </cputune>
  <resource>
    <partition>/machine</partition>
  </resource>
  <os>
    <type arch='x86_64' machine='pc-i440fx-3.0'>hvm</type>
    <loader readonly='yes' type='pflash'>/usr/share/qemu/ovmf-x64/OVMF_CODE-pure-efi.fd</loader>
    <nvram>/etc/libvirt/qemu/nvram/2b9ece6b-b771-dd20-11ed-3106f614c562_VARS-pure-efi.fd</nvram>
  </os>
  <features>
    <acpi/>
    <apic/>
    <hyperv>
      <relaxed state='on'/>
      <vapic state='on'/>
      <spinlocks state='on' retries='8191'/>
      <vendor_id state='on' value='none'/>
    </hyperv>
  </features>
  <cpu mode='host-passthrough' check='none'>
    <topology sockets='1' cores='1' threads='1'/>
  </cpu>

 

bump!

bump, similar issue...

Thats why to virtualize seriously use xenserver. Unraid and proxmox are both faulty when it comes to windows VMs. Or go for win10 which seams to work in unraid.