rustubs::mm::pma

Struct PageStackAllocator

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pub struct PageStackAllocator {
    page_stack: &'static mut [u64],
    size: usize,
    head: usize,
}
Expand description

There should only be one global instance of this.

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§page_stack: &'static mut [u64]§size: usize§head: usize

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impl PageStackAllocator

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const STACK_SIZE: usize = 1_048_576usize

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pub fn new() -> Self

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pub fn free_page(&mut self, addr: u64) -> bool

push an addr into the free page stack MUST be atomic or bad things happen…

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pub fn alloc_page(&mut self) -> Option<u64>

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pub fn insert_range(&mut self, r: &Range<u64>) -> u64

4k page only?

Auto Trait Implementations§

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impl Freeze for PageStackAllocator

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impl RefUnwindSafe for PageStackAllocator

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impl Send for PageStackAllocator

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impl Sync for PageStackAllocator

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impl Unpin for PageStackAllocator

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impl !UnwindSafe for PageStackAllocator

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

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

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fn borrow(&self) -> &T

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

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

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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, 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.