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Add function for getting mapped page flags

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This commit is contained in:
Jeremy Soller 2016-09-20 17:36:36 -06:00
parent ed3170bdcc
commit be3bcbb878
1 changed files with 7 additions and 0 deletions
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7
arch/x86_64/src/paging/mapper.rs
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@ -93,6 +93,13 @@ impl Mapper {
.and_then(|p1| p1[page.p1_index()].pointed_frame()) .and_then(|p1| p1[page.p1_index()].pointed_frame())
} }
pub fn translate_page_flags(&self, page: Page) -> Option<EntryFlags> {
self.p4().next_table(page.p4_index())
.and_then(|p3| p3.next_table(page.p3_index()))
.and_then(|p2| p2.next_table(page.p2_index()))
.and_then(|p1| Some(p1[page.p1_index()].flags()))
}
/// Translate a virtual address to a physical one /// Translate a virtual address to a physical one
pub fn translate(&self, virtual_address: VirtualAddress) -> Option<PhysicalAddress> { pub fn translate(&self, virtual_address: VirtualAddress) -> Option<PhysicalAddress> {
let offset = virtual_address.get() % PAGE_SIZE; let offset = virtual_address.get() % PAGE_SIZE;