pub struct PciConfigMmio {
    pci_root: Arc<Mutex<PciRoot>>,
    register_bit_num: usize,
}
Expand description

Emulates PCI memory-mapped configuration access mechanism.

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§pci_root: Arc<Mutex<PciRoot>>

PCI root bridge.

§register_bit_num: usize

Register bit number in config address.

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impl PciConfigMmio

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pub fn new(pci_root: Arc<Mutex<PciRoot>>, register_bit_num: usize) -> Self

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fn config_space_read(&self, config_address: u32) -> u32

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fn config_space_write(&mut self, config_address: u32, offset: u64, data: &[u8])

Trait Implementations§

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impl BusDevice for PciConfigMmio

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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 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 on_sandboxed(&mut self)

Invoked when the device is sandboxed.
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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 Suspendable for PciConfigMmio

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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.
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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.

Auto Trait Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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fn into(self) -> U

Calls U::from(self).

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type Error = Infallible

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Performs the conversion.
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