kernel::memory::pmm

Struct Pmm

pub struct Pmm { /* private fields */ }

Expand description

The Physical Memory Manager (PMM) manages the system’s supply of physical memory. It operates in frames of 4KiB, which matches the base frame size on the architectures we’re interested in.

Implementations§

Source §

impl Pmm

Source

pub fn new(boot_info: &BootInfo) -> Pmm

Source

pub fn alloc(&self, count: usize) -> PAddr

Allocate count frames.

Source

pub fn free(&self, base: PAddr, count: usize)

Free count frames, starting at address base.

Trait Implementations§

Source §

impl<S> FrameAllocator<S> for Pmm
where S: FrameSize,

Source §

fn allocate_n(&self, n: usize) -> Range<Frame<S>>

Allocate n contiguous Frames.

Source §

fn free_n(&self, start: Frame<S>, num_frames: usize)

Free n frames that were previously allocated by this allocator.

Source §

fn allocate(&self) -> Frame<S>

Allocate a Frame. Read more

Auto Trait Implementations§

§

impl UnwindSafe for Pmm

Blanket Implementations§

Source §

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

Source §

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

Source §

impl<T> Borrow<T> for T
where T: ?Sized,

Source §

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

Source §

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source §

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

Mutably borrows from an owned value. Read more

Source §

impl<T> Downcast for T
where T: Any,

Source §

fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.

Source §

fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<dyn Any>. Rc<dyn Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.

Source §

fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Anydyn Any. This is needed since Rust cannot generate &Anydyn Any’s vtable from &Trait’s.

Source §

fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Anydyn Any. This is needed since Rust cannot generate &mut dyn Any’s vtable from &mut Trait’s.

Source §

impl<T> DowncastSync for T
where T: Any + Send + Sync,

Source §

fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send>

Convert Arc<Trait> (where Trait: Downcast) to Arc<dyn Any>. Arc<dyn Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.

Source §