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15 lines
477 B
Rust
15 lines
477 B
Rust
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//! Helper functions
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use super::*;
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pub trait PageTableExt: PageTable {
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const TEMP_PAGE_ADDR: VirtAddr = 0xcafeb000;
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fn with_temporary_map<T, D>(&mut self, target: PhysAddr, f: impl FnOnce(&mut Self, &mut D) -> T) -> T {
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self.map(Self::TEMP_PAGE_ADDR, target);
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let data = unsafe { &mut *(self.get_page_slice_mut(Self::TEMP_PAGE_ADDR).as_ptr() as *mut D) };
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let ret = f(self, data);
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self.unmap(Self::TEMP_PAGE_ADDR);
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ret
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}
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}
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