I’m spinning up a VM using qemu-system-x86_64 where I’m passing the VM ~500 interfaces. Watching the boot process I see that the PCI probing/boot phase itself takes 10s of minutes. I see multiple qemu processes running extensively (eg at 200% and 100%). The VM has 14 vcpu and 24GB of RAM.
I don’t have PCI clue and so I’m wondering what is actually happening during this phase that would take so long? Besides reducing the number of interfaces, is there a way to reduce the time the VM takes to boot during this PCI phase? Thanks