Struct devices::pci::msi::MsiConfig

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pub struct MsiConfig {
    is_64bit: bool,
    mask_cap: bool,
    ctrl: u16,
    address: u64,
    data: u16,
    vm_socket_irq: Tube,
    irqfd: Option<Event>,
    gsi: Option<u32>,
    device_id: u32,
    device_name: String,
}
Expand description

Wrapper over MSI Capability Structure

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§is_64bit: bool§mask_cap: bool§ctrl: u16§address: u64§data: u16§vm_socket_irq: Tube§irqfd: Option<Event>§gsi: Option<u32>§device_id: u32§device_name: String

Implementations§

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impl MsiConfig

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pub fn new( is_64bit: bool, mask_cap: bool, vm_socket_irq: Tube, device_id: u32, device_name: String ) -> Self

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fn len(&self) -> u32

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pub fn is_msi_reg(&self, offset: u32, index: u64, len: usize) -> bool

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pub fn read_msi_capability(&self, offset: u32, data: u32) -> u32

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pub fn write_msi_capability(&mut self, offset: u32, data: &[u8]) -> MsiStatus

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pub fn is_msi_enabled(&self) -> bool

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fn add_msi_route(&self)

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fn allocate_one_msi(&mut self)

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fn enable(&mut self)

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pub fn get_irqfd(&self) -> Option<&Event>

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pub fn destroy(&mut self)

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pub fn get_msi_socket(&self) -> RawDescriptor

Return the raw descriptor of the MSI device socket

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pub fn trigger(&self)

Trait Implementations§

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impl PciCapConfig for MsiConfig

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fn read_mask(&self) -> &'static [u32]

Returns the read mask used by read_reg.
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fn read_reg(&self, reg_idx: usize) -> u32

Reads a 32bit register from the capability. Only the bits set in the read mask will be used, while the rest of the bits will be taken from the PciConfiguration’s register data. reg_idx - index into the capability
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fn write_reg( &mut self, reg_idx: usize, offset: u64, data: &[u8] ) -> Option<Box<dyn PciCapConfigWriteResult>>

Writes data to the capability. reg_idx - index into PciConfiguration.registers. offset - PciConfiguration.registers is in unit of DWord, offset define byte offset in the DWord. data - The data to write.
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fn set_cap_mapping(&mut self, _mapping: PciCapMapping)

Used to pass the mmio region for the capability to the implementation. If any external events update the capability’s registers, then PciCapMapping.set_reg must be called to make the changes visible to the guest.
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fn num_regs(&self) -> usize

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