Anyone successful yet in passing through Intel iGPU to a KVM-based hackintosh?

I successfully installed Catalina on a qemu-kvm based vm using Proxmox VE 6 and the Intel iGPU has been bound to the vfio-pci.

But when I tied the iGPU to the macOS guest, all I got was a lot of retries before the vm eventually rebooted, and here's the screenshot. I tried with both lilu.kext+whatevergreen.kext and the config.plist (added a few patches as instructed from this tutorial: How to Fix Intel UHD 630 Graphics Catalina Hackintosh | 2020)

https://preview.redd.it/r3tfmunbfko41.png?width=1920&format=png&auto=webp&s=ed396cc6552f51585d50b280a265a8220f682ed4

And here's how my pve configuration goes:

args: -device isa-applesmc,osk="ourhardworkbythesewordsguardedpleasedontsteal(c)AppleComputerInc" -smbios type=2 -cpu Penryn,kvm=on,vendor=GenuineIntel,+kvm_pv_unhalt,+kvm_pv_eoi,+invtsc,vmware-cpuid-freq=on,+pcid,+ssse3,+sse4.2,+popcnt,+avx,+aes,+xsave,+xsaveopt,check -device usb-kbd,bus=ehci.0,port=2 balloon: 0 bios: ovmf boot: cdn bootdisk: sata0 cores: 4 cpu: Penryn efidisk0: local:102/vm-102-disk-1.qcow2,size=128K hostpci0: 00:02,pcie=1,rombar=0,x-vga=1 machine: q35 memory: 8192 name: macOS net0: vmxnet3=A6:A3:4A:79:1B:32,bridge=vmbr0,firewall=1 numa: 0 ostype: other sata0: local:102/vm-102-disk-0.qcow2,backup=0,cache=unsafe,discard=on,size=64G,ssd=1 scsihw: virtio-scsi-pci smbios1: uuid=7d14a319-47dd-49eb-b0c1-4d744aee04db snaptime: 1585027577 sockets: 1 vga: vmware vmgenid: 76a2c353-07d5-497f-be05-c41afa003e5c 

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https://preview.redd.it/p2f7mp28gko41.png?width=791&format=png&auto=webp&s=350850d6a695e90d8187035afde8abd7d72b94d7

Does any one has a clue how to make a successful integrated graphics passthrough to hackintosh, please be kind to tell me. Thanks!