Struct GuestMemoryManager

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pub struct GuestMemoryManager { /* private fields */ }
Expand description

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.

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impl GuestMemoryManager

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pub fn new() -> Self

Create a new instance of GuestMemoryManager.

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

Get a reference to the normal GuestMemory object.

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

Try to downcast the GuestAddressSpace object to a GuestMemoryManager object.

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impl Clone for GuestMemoryManager

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fn clone(&self) -> GuestMemoryManager

Returns a duplicate of the value. Read more
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const fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for GuestMemoryManager

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

Formats the value using the given formatter. Read more
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impl Default for GuestMemoryManager

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl GuestAddressSpace for GuestMemoryManager

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type M = GuestMemoryHybrid

The type that will be used to access guest memory.
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type T = GuestMemoryLoadGuard<GuestMemoryHybrid>

A type that provides access to the memory.
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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.

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Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.