Struct devices::virtio::virtio_pci_common_config::VirtioPciCommonConfig

pub struct VirtioPciCommonConfig {
    pub driver_status: u8,
    pub config_generation: u8,
    pub device_feature_select: u32,
    pub driver_feature_select: u32,
    pub queue_select: u16,
    pub msix_config: u16,
}

Contains the data for reading and writing the common configuration structure of a virtio PCI device.

• Registers:
  • About the whole device.
    • le32 device_feature_select; // read-write
    • le32 device_feature; // read-only for driver
    • le32 driver_feature_select; // read-write
    • le32 driver_feature; // read-write
    • le16 msix_config; // read-write
    • le16 num_queues; // read-only for driver
    • u8 device_status; // read-write (driver_status)
    • u8 config_generation; // read-only for driver
  • About a specific virtqueue.
    • le16 queue_select; // read-write
    • le16 queue_size; // read-write, power of 2, or 0.
    • le16 queue_msix_vector; // read-write
    • le16 queue_enable; // read-write (Ready)
    • le16 queue_notify_off; // read-only for driver
    • le64 queue_desc; // read-write
    • le64 queue_avail; // read-write
    • le64 queue_used; // read-write

Fields

driver_status: u8

config_generation: u8

device_feature_select: u32

driver_feature_select: u32

queue_select: u16

msix_config: u16

Implementations

impl VirtioPciCommonConfig

pub fn read( &mut self, offset: u64, data: &mut [u8], queues: &mut [QueueConfig], device: &mut dyn VirtioDevice )

pub fn write( &mut self, offset: u64, data: &[u8], queues: &mut [QueueConfig], device: &mut dyn VirtioDevice )

fn read_common_config_byte(&self, offset: u64) -> u8

fn write_common_config_byte(&mut self, offset: u64, value: u8)

fn read_common_config_word(&self, offset: u64, queues: &[QueueConfig]) -> u16

fn write_common_config_word( &mut self, offset: u64, value: u16, queues: &mut [QueueConfig] )

fn read_common_config_dword( &self, offset: u64, device: &dyn VirtioDevice ) -> u32

fn write_common_config_dword( &mut self, offset: u64, value: u32, queues: &mut [QueueConfig], device: &mut dyn VirtioDevice )

fn read_common_config_qword(&self, _offset: u64) -> u64

fn write_common_config_qword( &mut self, offset: u64, value: u64, queues: &mut [QueueConfig] )

fn with_queue<U, F>(&self, queues: &[QueueConfig], f: F) -> Option<U>

where F: FnOnce(&QueueConfig) -> U,

fn with_queue_mut<F: FnOnce(&mut QueueConfig)>( &self, queues: &mut [QueueConfig], f: F )

Trait Implementations

impl Clone for VirtioPciCommonConfig

fn clone(&self) -> VirtioPciCommonConfig

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'de> Deserialize<'de> for VirtioPciCommonConfig

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for VirtioPciCommonConfig

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for VirtioPciCommonConfig