Struct crosvm::crosvm::plugin::vcpu::PerVcpuState

pub struct PerVcpuState {
    pause_request: Option<u64>,
}

State specific to a VCPU, grouped so that each PluginVcpu object will share a canonical version.

Fields

pause_request: Option<u64>

Implementations

impl PerVcpuState

pub fn request_pause(&mut self, data: u64)

Indicates that a VCPU should wait until the plugin process resumes the VCPU.

This method will not cause a VCPU to pause immediately. Instead, the VCPU thread will continue running until a interrupted, at which point it will check for a pending pause. If there is another call to request_pause for this VCPU before that happens, the last pause request’s data will be overwritten with the most recent `data.

To get an immediate pause after calling request_pause, send a signal (with a registered handler) to the thread handling the VCPU corresponding to this state. This should interrupt the running VCPU, which should check for a pause with PluginVcpu::pre_run.

Trait Implementations

impl Default for PerVcpuState

fn default() -> PerVcpuState

Returns the “default value” for a type.