Module xshim 

Neutral shim mirroring the used subset of the x86_64 crate (address types, page sizes, paging flags). Available on all arches: on x86_64 it re-exports the real crate types, elsewhere it provides neutral equivalents. Architecture-neutral shim mirroring the subset of the x86_64 crate API used by shared kernel code (address types, page sizes, paging flags).

Purpose: the ~42 use x86_64::... call-sites outside arch/ are being rewritten to use crate::arch::xshim::... so the riscv64 backend can provide its own implementations. On x86_64 the shim re-exports the real crate types so behaviour is bit-identical.

Structs

PageTableFlags

Possible flags for a page table entry.

PhysAddr

A 64-bit physical memory address.

PhysFrame

A physical memory frame.

VirtAddr

A canonical 64-bit virtual memory address.

Enums

Size2MiB

A “huge” 2MiB page.

Size4KiB

A standard 4KiB page.

TranslateResult

The return value of the Translate::translate function.

Constants

PTR_MASK

Address bits within a page-table entry (Sv48: PPN[2..0] + flags).

Traits

Translate

Provides methods for translating virtual addresses.