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vmm: vm, device_manager: Trigger a power button notification via ACPI
Use the ACPI GED device to trigger a notitifcation of type POWER_BUTTON_CHANGED which will ultimately lead to the guest being notified. Signed-off-by: Rob Bradford <robert.bradford@intel.com>
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@ -366,6 +366,9 @@ pub enum DeviceManagerError {
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/// Missing virtio-balloon, can't proceed as expected.
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/// Missing virtio-balloon, can't proceed as expected.
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MissingVirtioBalloon,
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MissingVirtioBalloon,
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/// Failed to do power button notification
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PowerButtonNotification(io::Error),
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}
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}
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pub type DeviceManagerResult<T> = result::Result<T, DeviceManagerError>;
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pub type DeviceManagerResult<T> = result::Result<T, DeviceManagerError>;
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@ -3177,6 +3180,18 @@ impl DeviceManager {
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pub fn device_tree(&self) -> Arc<Mutex<DeviceTree>> {
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pub fn device_tree(&self) -> Arc<Mutex<DeviceTree>> {
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self.device_tree.clone()
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self.device_tree.clone()
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}
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}
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#[cfg(feature = "acpi")]
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pub fn notify_power_button(&self) -> DeviceManagerResult<()> {
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return self
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.ged_notification_device
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.as_ref()
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.unwrap()
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.lock()
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.unwrap()
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.notify(AcpiNotificationFlags::POWER_BUTTON_CHANGED)
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.map_err(DeviceManagerError::PowerButtonNotification);
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}
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}
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}
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#[cfg(feature = "acpi")]
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#[cfg(feature = "acpi")]
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@ -234,6 +234,12 @@ pub enum Error {
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/// Cannot activate virtio devices
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/// Cannot activate virtio devices
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ActivateVirtioDevices(device_manager::DeviceManagerError),
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ActivateVirtioDevices(device_manager::DeviceManagerError),
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/// Power button not supported
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PowerButtonNotSupported,
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/// Error triggering power button
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PowerButton(device_manager::DeviceManagerError),
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}
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}
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pub type Result<T> = result::Result<T, Error>;
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pub type Result<T> = result::Result<T, Error>;
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@ -1762,6 +1768,18 @@ impl Vm {
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.activate_virtio_devices()
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.activate_virtio_devices()
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.map_err(Error::ActivateVirtioDevices)
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.map_err(Error::ActivateVirtioDevices)
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}
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}
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pub fn power_button(&self) -> Result<()> {
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#[cfg(feature = "acpi")]
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return self
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.device_manager
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.lock()
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.unwrap()
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.notify_power_button()
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.map_err(Error::PowerButton);
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#[cfg(not(feature = "acpi"))]
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Err(Error::PowerButtonNotSupported)
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}
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}
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}
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impl Pausable for Vm {
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impl Pausable for Vm {
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