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Refactor kernel virtual memory allocation for kernel stack and I/O memory

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This commit is contained in:
Wang Siyuan
2024-09-24 19:02:26 +00:00
committed by Tate, Hongliang Tian
parent 29eb37c07c
commit 998869d57e
11 changed files with 495 additions and 257 deletions
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8
ostd/src/mm/kspace/mod.rs
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@ -20,9 +20,9 @@
//! +-+ <- 0xffff_e100_0000_0000
//! | | For frame metadata, 1 TiB. Mapped frames are untracked.
//! +-+ <- 0xffff_e000_0000_0000
//! | | For [`kva::Kva`], 16 TiB. Mapped pages are tracked with handles.
//! | | For [`KVirtArea<Tracked>`], 16 TiB. Mapped pages are tracked with handles.
//! +-+ <- 0xffff_d000_0000_0000
//! | | For [`kva::Kva`], 16 TiB. Mapped pages are untracked.
//! | | For [`KVirtArea<Untracked>`], 16 TiB. Mapped pages are untracked.
//! +-+ <- the middle of the higher half (0xffff_c000_0000_0000)
//! | |
//! | |
@ -38,7 +38,7 @@
//! If the address width is (according to [`crate::arch::mm::PagingConsts`])
//! 39 bits or 57 bits, the memory space just adjust proportionally.
pub(crate) mod kva;
pub(crate) mod kvirt_area;
use alloc::vec::Vec;
use core::ops::Range;
@ -114,7 +114,7 @@ pub fn paddr_to_vaddr(pa: Paddr) -> usize {
///
/// About what is tracked mapping, see [`crate::mm::page::meta::MapTrackingStatus`].
pub(crate) fn should_map_as_tracked(addr: Vaddr) -> bool {
!LINEAR_MAPPING_VADDR_RANGE.contains(&addr)
!(LINEAR_MAPPING_VADDR_RANGE.contains(&addr) || VMALLOC_VADDR_RANGE.contains(&addr))
}
/// The kernel page table instance.