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Set RISCV MMU marker flags by default

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aarch
2025-12-09 13:28:44 +00:00
committed by Jeremy Soller
parent 409a1c02f5
commit 5b149b7fe4
1 changed files with 5 additions and 1 deletions
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src/arch/riscv64/sv39.rs
+5 -1
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@@ -5,6 +5,9 @@ use crate::{Arch, MemoryArea, PhysicalAddress, TableKind, VirtualAddress};
#[derive(Clone, Copy)]
pub struct RiscV64Sv39Arch;
pub const ACCESSED: usize = 1 << 6;
pub const DIRTY: usize = 1 << 7;
impl Arch for RiscV64Sv39Arch {
const PAGE_SHIFT: usize = 12; // 4096 bytes
const PAGE_ENTRY_SHIFT: usize = 9; // 512 entries, 8 bytes each
@@ -13,7 +16,8 @@ impl Arch for RiscV64Sv39Arch {
const ENTRY_ADDRESS_WIDTH: usize = 44;
const ENTRY_ADDRESS_SHIFT: usize = 10;
const ENTRY_FLAG_DEFAULT_PAGE: usize = Self::ENTRY_FLAG_PRESENT | Self::ENTRY_FLAG_READONLY;
const ENTRY_FLAG_DEFAULT_PAGE: usize =
Self::ENTRY_FLAG_PRESENT | Self::ENTRY_FLAG_READONLY | ACCESSED | DIRTY;
const ENTRY_FLAG_DEFAULT_TABLE: usize = Self::ENTRY_FLAG_PRESENT;
const ENTRY_FLAG_PRESENT: usize = 1 << 0;
const ENTRY_FLAG_READONLY: usize = 1 << 1;