pub struct VirtioMmioDevice {
Show 15 fields device: Box<dyn VirtioDevice>, device_activated: bool, interrupt: Option<Interrupt>, interrupt_evt: Option<IrqEdgeEvent>, async_intr_status: bool, queues: Vec<QueueConfig>, queue_evts: Vec<Event>, mem: GuestMemory, device_feature_select: u32, driver_feature_select: u32, queue_select: u16, driver_status: u8, mmio_base: u64, irq_num: u32, config_generation: u32,
}
Expand description

Implements the MMIO transport for virtio devices.

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§device: Box<dyn VirtioDevice>§device_activated: bool§interrupt: Option<Interrupt>§interrupt_evt: Option<IrqEdgeEvent>§async_intr_status: bool§queues: Vec<QueueConfig>§queue_evts: Vec<Event>§mem: GuestMemory§device_feature_select: u32§driver_feature_select: u32§queue_select: u16§driver_status: u8§mmio_base: u64§irq_num: u32§config_generation: u32

Implementations§

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impl VirtioMmioDevice

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pub fn new( mem: GuestMemory, device: Box<dyn VirtioDevice>, async_intr_status: bool ) -> Result<Self>

Constructs a new MMIO transport for the given virtio device.

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pub fn ioevents(&self) -> Vec<(&Event, u64, Datamatch)>

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fn is_driver_ready(&self) -> bool

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fn is_reset_requested(&self) -> bool

Determines if the driver has requested the device reset itself

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fn device_type(&self) -> u32

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fn activate(&mut self) -> Result<()>

Activates the underlying VirtioDevice. assign_irq has to be called first.

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fn read_mmio(&self, info: BusAccessInfo, data: &mut [u8])

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fn write_mmio(&mut self, info: BusAccessInfo, data: &[u8])

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fn with_queue<U, F>(&self, f: F) -> Option<U>
where F: FnOnce(&QueueConfig) -> U,

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fn with_queue_mut<F>(&mut self, f: F)
where F: FnOnce(&mut QueueConfig),

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pub fn allocate_regions( &mut self, resources: &mut SystemAllocator ) -> Result<Vec<(u64, u64)>, Error>

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pub fn assign_irq(&mut self, irq_evt: &IrqEdgeEvent, irq_num: u32)

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pub fn keep_rds(&self) -> Vec<RawDescriptor>

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fn on_device_sandboxed(&mut self)

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pub fn generate_acpi(&mut self, sdts: Vec<SDT>) -> Option<Vec<SDT>>

Trait Implementations§

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impl Aml for VirtioMmioDevice

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fn to_aml_bytes(&self, bytes: &mut Vec<u8>)

Translate an ACPI object into AML code and append to the vector buffer. Read more
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impl BusDevice for VirtioMmioDevice

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fn debug_label(&self) -> String

Returns a label suitable for debug output.
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fn device_id(&self) -> DeviceId

Returns a unique id per device type suitable for metrics gathering.
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fn read(&mut self, info: BusAccessInfo, data: &mut [u8])

Reads at offset from this device
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fn write(&mut self, info: BusAccessInfo, data: &[u8])

Writes at offset into this device
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fn on_sandboxed(&mut self)

Invoked when the device is sandboxed.
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fn config_register_write( &mut self, reg_idx: usize, offset: u64, data: &[u8] ) -> ConfigWriteResult

Sets a register in the configuration space. Only used by PCI. Read more
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fn config_register_read(&self, reg_idx: usize) -> u32

Gets a register from the configuration space. Only used by PCI. Read more
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fn init_pci_config_mapping( &mut self, shmem: &SharedMemory, base: usize, len: usize ) -> bool

Provides a memory region to back MMIO access to the configuration space. If the device can keep the memory region up to date, then it should return true, after which no more calls to config_register_read will be made. Otherwise the device should return false. Read more
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fn virtual_config_register_write(&mut self, reg_idx: usize, value: u32)

Sets a register in the virtual config space. Only used by PCI. Read more
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fn virtual_config_register_read(&self, reg_idx: usize) -> u32

Gets a register from the virtual config space. Only used by PCI. Read more
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fn get_ranges(&self) -> Vec<(BusRange, BusType)>

Gets a list of all ranges registered by this BusDevice.
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fn destroy_device(&mut self)

Invoked when the device is destroyed
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fn is_bridge(&self) -> Option<u8>

Returns the secondary bus number if this bus device is pci bridge
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impl BusDeviceObj for VirtioMmioDevice

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impl Suspendable for VirtioMmioDevice

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fn snapshot(&mut self) -> Result<Value>

Save the device state in an image that can be restored.
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fn restore(&mut self, _data: Value) -> Result<()>

Load a saved snapshot of an image.
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fn sleep(&mut self) -> Result<()>

Stop all threads related to the device. Sleep should be idempotent.
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fn wake(&mut self) -> Result<()>

Create/Resume all threads related to the device. Wake should be idempotent.

Auto Trait Implementations§

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impl<T> Any for T
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fn type_id(&self) -> TypeId

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Calls U::from(self).

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