Issue with acpi hotplug on pcie root ports in case of q35 + ovmf + machine type 6.1

[lma]

Hi list,

Have you experienced any acpi hotplugging issue while using q35 + ovmf + 
machine type 6.1?
According to the error message in guest kernel,  It seems qemu with ovmf 
doesn't prepare
enough resource in PCI space for acpi hotplugging on multifunction 
bridges.

Please refer to issue#705 for details:
https://gitlab.com/qemu-project/qemu/-/issues/705

Thanks,
Lin