Struct VirtioPciDevice 

pub struct VirtioPciDevice {
    pub bar_address: u64,
    /* private fields */
}

Fields

bar_address: u64

Implementations

impl VirtioPciDevice

pub fn allocate_bars(&mut self, mmio64_allocator: &mut AddressAllocator)

Allocate the PCI BAR for the VirtIO device and its associated capabilities.

This must happen only during the creation of a brand new VM. When a VM is restored from a known state, the BARs are already created with the right content, therefore we don’t need to go through this codepath.

pub fn new( id: String, memory: GuestMemoryMmap, device: Arc<Mutex<dyn VirtioDevice>>, msix_vectors: Arc<MsixVectorGroup>, pci_device_bdf: u32, ) -> Result<Self, VirtioPciDeviceError>

Constructs a new PCI transport for the given virtio device.

pub fn new_from_state( id: String, vm: &Arc<Vm>, device: Arc<Mutex<dyn VirtioDevice>>, state: VirtioPciDeviceState, ) -> Result<Self, VirtioPciDeviceError>

pub fn config_bar_addr(&self) -> u64

pub fn virtio_device(&self) -> Arc<Mutex<dyn VirtioDevice>>

pub fn register_notification_ioevent(&self, vm: &Vm) -> Result<(), Error>

Register the IoEvent notification for a VirtIO device

pub fn state(&self) -> VirtioPciDeviceState

Trait Implementations

impl BusDevice for VirtioPciDevice

fn read(&mut self, base: u64, offset: u64, data: &mut [u8])

Reads at offset from this device

fn write(&mut self, base: u64, offset: u64, data: &[u8]) -> Option<Arc<Barrier>>

Writes at offset into this device

impl Debug for VirtioPciDevice

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PciDevice for VirtioPciDevice

fn write_config_register( &mut self, reg_idx: usize, offset: u64, data: &[u8], ) -> Option<Arc<Barrier>>

Sets a register in the configuration space.

fn read_config_register(&mut self, reg_idx: usize) -> u32

Gets a register from the configuration space.

fn detect_bar_reprogramming( &mut self, reg_idx: usize, data: &[u8], ) -> Option<BarReprogrammingParams>

Detects if a BAR is being reprogrammed.

fn move_bar( &mut self, old_base: u64, new_base: u64, ) -> Result<(), DeviceRelocationError>

Relocates the BAR to a different address in guest address space.

fn read_bar(&mut self, _base: u64, offset: u64, data: &mut [u8])

Reads from a BAR region mapped into the device.

fn write_bar( &mut self, _base: u64, offset: u64, data: &[u8], ) -> Option<Arc<Barrier>>

Writes to a BAR region mapped into the device.