Error starting domain: unsupported configuration: host doesn't support passthrough of host PCI devices

Hello everyone! I been strugglin alot with my upcomin Mac OS Catalina VM.
I finally got it running from Virtual Machine Manager, but i had some display issues like this from my last post (link)

I decided to just give my VM my integrated graphics "HD530" since im using "GTX 1060" on my Linux Manjaro HOST.
But i get this error code...

Error starting domain: unsupported configuration: host doesn't support passthrough of host PCI devices

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/asyncjob.py", line 75, in cb_wrapper
    callback(asyncjob, *args, **kwargs)
  File "/usr/share/virt-manager/virtManager/asyncjob.py", line 111, in tmpcb
    callback(*args, **kwargs)
  File "/usr/share/virt-manager/virtManager/object/libvirtobject.py", line 66, in newfn
    ret = fn(self, *args, **kwargs)
  File "/usr/share/virt-manager/virtManager/object/domain.py", line 1279, in startup
    self._backend.create()
  File "/usr/lib/python3.8/site-packages/libvirt.py", line 1234, in create
    if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self)
libvirt.libvirtError: unsupported configuration: host doesn't support passthrough of host PCI devices

i Have vt-d enabled, im running linux from nvidia gpu, multi gpu option enabled so i could select hd530 pci device from virtual machine manager devices.

How do i passtrough onboard/integrated gpu to my virtual machine?
I tried setting up IOMMU intel_iommu=on And then reboot and run dmesg | grep -i -e DMAR -e IOMMU But i get error: dmesg: read kernel buffer failed: Operation not permitted

Any help is needed <3 (Link where i started)

My specs:
i7-6700k
GTX 1060 6GB
16GB DDR4
Msi pcmate z170a
256gb SSD Windows
2TB HDD Linux, junk

Update!! now im facing no display issue.

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