fn create_pure_virtual_pcie_root_port(
sys_allocator: &mut SystemAllocator,
irq_control_tubes: &mut Vec<Tube>,
devices: &mut Vec<(Box<dyn BusDeviceObj>, Option<Minijail>)>,
hp_bus_count: u8
) -> Result<HotPlugStub>Expand description
Creates PCIE root port with only virtual devices.
user doesn’t specify host pcie root port which link to this virtual pcie rp, find the empty bus and create a total virtual pcie rp