Enum BalloonControllerRequest

pub enum BalloonControllerRequest {
    GetBalloonSize {
        responder: BalloonControllerGetBalloonSizeResponder,
    },
    RequestNumPages {
        requested_num_pages: u32,
        control_handle: BalloonControllerControlHandle,
    },
    GetMemStats {
        responder: BalloonControllerGetMemStatsResponder,
    },
}

A BalloonController controls a guest instance’s memory balloon.

Variants

GetBalloonSize

Get the current and requested number of pages in the memory balloon.

current_num_pages is the number of pages balloon has right now. requested_num_pages is the desired number of pages in the balloon.

‘current_num_pages’ corresponds to the ‘actual’ virtio-balloon config field ‘requested_num_pages’ corresponds to the ‘num_pages’ virtio-balloon config field.

Fields

responder: BalloonControllerGetBalloonSizeResponder

RequestNumPages

Request a number of pages to be supplied to the memory balloon.

If requested_num_pages is greater than the current_num_pages config value, the guest driver SHOULD provide additional pages to the memory balloon. If requested_num_pages is less than the ‘current_num_pages’ config value, the guest driver MAY reclaim pages from the memory balloon.

Fields

requested_num_pages: u32

control_handle: BalloonControllerControlHandle

GetMemStats

Get memory statistics of the guest instance.

Fields

responder: BalloonControllerGetMemStatsResponder

Implementations

impl BalloonControllerRequest

pub fn into_get_balloon_size( self, ) -> Option<BalloonControllerGetBalloonSizeResponder>

pub fn into_request_num_pages( self, ) -> Option<(u32, BalloonControllerControlHandle)>

pub fn into_get_mem_stats(self) -> Option<BalloonControllerGetMemStatsResponder>

pub fn method_name(&self) -> &'static str

Name of the method defined in FIDL

Trait Implementations

impl Debug for BalloonControllerRequest

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

Formats the value using the given formatter.