8000 [feat] extend MemoryAddr trait, add pageiter for huge pages by hky1999 · Pull Request #7 · arceos-org/axmm_crates · GitHub
[go: up one dir, main page]
More Web Proxy on the site http://driver.im/
Skip to content

[feat] extend MemoryAddr trait, add pageiter for huge pages #7

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Draft
wants to merge 1 commit into
base: main
Choose a base branch
from
Draft

[feat] extend MemoryAddr trait, add pageiter for huge pages #7

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
8 changes: 7 additions & 1 deletion memory_addr/src/addr.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,4 +1,6 @@
use core::cmp::Ord;
use core::fmt::{Debug, LowerHex};
use core::marker::{Send, Sync};

/// A trait for memory address types.
///
Expand All @@ -17,6 +19,7 @@ pub trait MemoryAddr:
+ Into<usize>
// The address type should be comparable.
+ Ord
+ Send + Sync + Debug + LowerHex
{
// No required methods for now. Following are some utility methods.

Expand Down Expand Up @@ -260,7 +263,10 @@ pub trait MemoryAddr:

/// Implement the `MemoryAddr` trait for any type that is `Copy`, `From<usize>`,
/// `Into<usize>`, and `Ord`.
impl<T> MemoryAddr for T where T: Copy + From<usize> + Into<usize> + Ord {}
impl<T> MemoryAddr for T where
T: Copy + From<usize> + Into<usize> + Ord + Send + Sync + Debug + LowerHex
{
}

/// Creates a new address type by wrapping an `usize`.
///
Expand Down
12 changes: 12 additions & 0 deletions memory_addr/src/lib.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -12,9 +12,21 @@ pub use self::range::{AddrRange, PhysAddrRange, VirtAddrRange};
/// The size of a 4K page (4096 bytes).
pub const PAGE_SIZE_4K: usize = 0x1000;

/// The size of a 2M page (2097152 bytes).
pub const PAGE_SIZE_2M: usize = 0x200000;

/// The size of a 1G page (1073741824 bytes).
pub const PAGE_SIZE_1G: usize = 0x40000000;

/// A [`PageIter`] for 4K pages.
pub type PageIter4K<A> = PageIter<PAGE_SIZE_4K, A>;

/// A [`PageIter`] for 2M pages.
pub type PageIter2M<A> = PageIter<PAGE_SIZE_2M, A>;

/// A [`PageIter`] for 1G pages.
pub type PageIter1G<A> = PageIter<PAGE_SIZE_1G, A>;

/// Align address downwards.
///
/// Returns the greatest `x` with alignment `align` so that `x <= addr`.
Expand Down
Loading
0