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pagetable manager: add flags #39

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Merged
edrflt merged 2 commits into from
Apr 12, 2022
Merged

pagetable manager: add flags #39

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707e304
makefile: bump to 0.0.3
edrflt Apr 12, 2022
cf6e498
pagetable: add flags constants
edrflt Apr 12, 2022
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2 changes: 1 addition & 1 deletion Makefile
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
VERSION=0
PATCHLEVEL=0
SUBLEVEL=2
SUBLEVEL=3
EXTRAVERSION=

export VERSION PATCHLEVEL SUBLEVEL EXTRAVERSION
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22 changes: 22 additions & 0 deletions src/memory/pagetable.rs
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Expand Up @@ -5,6 +5,28 @@ use crate::memory::pageframe;
use crate::memory::page_map_indexer;
use core::ffi::c_void;

pub mod flags
{
pub const PDE_PRESENT: usize = 0b0000_0001;
pub const PDE_RW: usize = 0b0000_0010;
pub const PDE_US: usize = 0b0000_0100;
pub const PDE_PWT: usize = 0b0000_1000;
pub const PDE_PCD: usize = 0b0001_0000;
pub const PDE_ACCESSED: usize = 0b0010_0000;
pub const PDE_FLAG2: usize = 0b0100_0000;
pub const PDE_PS: usize = 0b1000_0000;

pub const PTE_PRESENT: usize = 0b0000_0001;
pub const PTE_RW: usize = 0b0000_0010;
pub const PTE_US: usize = 0b0000_0100;
pub const PTE_PWT: usize = 0b0000_1000;
pub const PTE_PCD: usize = 0b0001_0000;
pub const PTE_ACCESSED: usize = 0b0010_0000;
pub const PTE_DIRTY: usize = 0b0100_0000;
pub const PTE_PAT: usize = 0b1000_0000;
pub const PTE_GLOBAL: usize = 0b1_0000_0000;
}

pub struct Manager
{
pub page_directory: &'static mut [page::DirectoryEntry],
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