Trait devices::bus::HotPlugBus

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pub trait HotPlugBus: Send {
    // Required methods
    fn hot_plug(&mut self, addr: PciAddress) -> Result<Option<Event>>;
    fn hot_unplug(&mut self, addr: PciAddress) -> Result<Option<Event>>;
    fn is_match(&self, host_addr: PciAddress) -> Option<u8>;
    fn get_address(&self) -> Option<PciAddress>;
    fn get_secondary_bus_number(&self) -> Option<u8>;
    fn add_hotplug_device(
        &mut self,
        hotplug_key: HotPlugKey,
        guest_addr: PciAddress
    );
    fn get_hotplug_device(&self, hotplug_key: HotPlugKey) -> Option<PciAddress>;
    fn is_empty(&self) -> bool;
    fn get_hotplug_key(&self) -> Option<HotPlugKey>;
}

Expand description

Trait for devices that notify hotplug event into guest

Required Methods§

source

fn hot_plug(&mut self, addr: PciAddress) -> Result<Option<Event>>

Request hot plug event. Returns error if the request is not sent. Upon success, optionally returns an event, which is triggerred once when the guest OS completes the request (by sending PCI_EXP_SLTCTL_CCIE). Returns None if no such mechanism is provided.

‘addr’ - the guest pci address for hotplug in device

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fn hot_unplug(&mut self, addr: PciAddress) -> Result<Option<Event>>

Request hot unplug event. Returns error if the request is not sent. Upon success, optionally returns an event, which is triggerred once when the guest OS completes the request (by sending PCI_EXP_SLTCTL_CCIE). Returns None if no such mechanism is provided.