Hi @Icenowy,
Thanks for explanations and the dev is really nice :).
I have rebuilt from scratch my buildroot + adding PCIUTILS but rtw PCI drivers is still not working properly :/.
buildroot branch used: https://github.com/clementperon/buildroot/commits/beelink_gs1_pcie_wrapped
linux patches are taken from kernel : https://github.com/clementperon/linux/commits/h6_pcie_wrapped
Output of lspci -vv
I have also try to rebuild from my previous work (your old PCIe stash + AW dirty patches) but can't make it works neither :'(.
https://github.com/clementperon/linux/commits/h6_pcie
Just sayin' that because I'm now convinced the issue is coming from my setup and not from the virtualization layer.
Regards,
Clement