Struct dbs_address_space::GuestMemoryManager

pub struct GuestMemoryManager { /* private fields */ }

The GuestMemoryManager manages all guest memory for virtual machines.

The GuestMemoryManager fulfills several different responsibilities.

• First, it manages different types of guest memory, such as normal guest memory, virtio-fs DAX window and virtio-pmem DAX window etc. Different clients may want to access different types of memory. So the manager maintains two GuestMemory objects, one contains all guest memory, the other contains only normal guest memory.
• Second, it coordinates memory/DAX window hotplug events, so clients may register hooks to receive hotplug notifications.

Implementations

impl GuestMemoryManager

pub fn new() -> Self

Create a new instance of GuestMemoryManager.

pub fn get_normal_guest_memory(&self) -> &GuestMemoryAtomic<GuestMemoryMmap>

Get a reference to the normal GuestMemory object.

pub fn to_manager<AS: GuestAddressSpace>(_m: &AS) -> Option<&Self>

Try to downcast the GuestAddressSpace object to a GuestMemoryManager object.

Trait Implementations

impl Clone for GuestMemoryManager

fn clone(&self) -> GuestMemoryManager

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for GuestMemoryManager

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

Formats the value using the given formatter.

impl Default for GuestMemoryManager

fn default() -> Self

Returns the “default value” for a type.

impl GuestAddressSpace for GuestMemoryManager

type M = GuestMemoryHybrid<()>

The type that will be used to access guest memory.

type T = GuestMemoryLoadGuard<GuestMemoryHybrid<()>>

A type that provides access to the memory.

fn memory(&self) -> Self::T

Return an object (e.g. a reference or guard) that can be used to access memory through this address space. The object provides a consistent snapshot of the memory map.