Struct Vcpu 

pub struct Vcpu {
    pub kvm_vcpu: KvmVcpu,
    pub event_receiver: Receiver<VcpuEvent>,
    pub event_sender: Option<Sender<VcpuEvent>>,
    pub response_receiver: Option<Receiver<VcpuResponse>>,
    /* private fields */
}

A wrapper around creating and using a vcpu.

Fields

kvm_vcpu: KvmVcpu

Access to kvm-arch specific functionality.

event_receiver: Receiver<VcpuEvent>

The receiving end of events channel owned by the vcpu side.

event_sender: Option<Sender<VcpuEvent>>

The transmitting end of the events channel which will be given to the handler.

response_receiver: Option<Receiver<VcpuResponse>>

The receiving end of the responses channel which will be given to the handler.

Implementations

impl Vcpu

pub fn new(index: u8, vm: &Vm, exit_evt: EventFd) -> Result<Self, VcpuError>

Constructs a new VCPU for vm.

Arguments

• index - Represents the 0-based CPU index between [0, max vcpus).
• vm - The vm to which this vcpu will get attached.
• exit_evt - An EventFd that will be written into when this vcpu exits.

pub fn set_mmio_bus(&mut self, mmio_bus: Arc<Bus>)

Sets a MMIO bus for this vcpu.

pub fn copy_kvm_vcpu_fd(&self, vm: &Vm) -> Result<VcpuFd, CopyKvmFdError>

Obtains a copy of the VcpuFd

pub fn start_threaded( self, vm: &Vm, seccomp_filter: Arc<BpfProgram>, barrier: Arc<Barrier>, ) -> Result<VcpuHandle, StartThreadedError>

Moves the vcpu to its own thread and constructs a VcpuHandle. The handle can be used to control the remote vcpu.

pub fn run(&mut self, seccomp_filter: BpfProgramRef<'_>)

Main loop of the vCPU thread.

Runs the vCPU in KVM context in a loop. Handles KVM_EXITs then goes back in. Note that the state of the VCPU and associated VM must be setup first for this to do anything useful.

pub fn run_emulation(&mut self) -> Result<VcpuEmulation, VcpuError>

Runs the vCPU in KVM context and handles the kvm exit reason.

Returns error or enum specifying whether emulation was handled or interrupted.

Trait Implementations

impl Debug for Vcpu

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

Formats the value using the given formatter.