How do I manage xen-hypervisor using virt-manager client?

I’ve installed xen-hypervisor 4.11 on my debian 10 desktop. But, when I add xen connection to my virt-manager it shows this error.

Unable to connect to libvirt xen:///.

Failed to connect socket to '/var/run/libvirt/libvirt-sock': Connection refused

Verify that:
 - A Xen host kernel was booted
 - The Xen service has been started

Libvirt URI is: xen:///

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/", line 1012, in _do_open, self)
  File "/usr/share/virt-manager/virtinst/", line 138, in open
  File "/usr/lib/python3/dist-packages/", line 104, in openAuth
    if ret is None:raise libvirtError('virConnectOpenAuth() failed')
libvirt.libvirtError: Failed to connect socket to '/var/run/libvirt/libvirt-sock': Connection refused

Do I need a IOMMU compatible motherboard to use Xen-hypervisor? or something else?

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Author: Michael Mosot