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PageTable

os::mm::page_table

Struct PageTable 

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pub struct PageTable {
    root_ppn: PhysPageNum,
    frames: Vec<FrameTracker>,
}

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§root_ppn: PhysPageNum§frames: Vec<FrameTracker>

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impl PageTable

Assume that it won’t oom when creating/mapping.

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pub fn new() -> Self

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pub fn from_token(satp: usize) -> Self

Temporarily used to get arguments from user space.

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fn find_pte_create(&mut self, vpn: VirtPageNum) -> Option<&mut PageTableEntry>

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fn find_pte(&self, vpn: VirtPageNum) -> Option<&mut PageTableEntry>

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pub fn map(&mut self, vpn: VirtPageNum, ppn: PhysPageNum, flags: PTEFlags)

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pub fn unmap(&mut self, vpn: VirtPageNum)

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pub fn translate(&self, vpn: VirtPageNum) -> Option<PageTableEntry>

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pub fn translate_va(&self, va: VirtAddr) -> Option<PhysAddr>

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pub fn token(&self) -> usize

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