Module vm_space

Virtual memory space management.

The VmSpace struct is provided to manage the virtual memory space of a user. Cursors are used to traverse and modify over the virtual memory space concurrently. The VM space cursor self::Cursor is just a wrapper over the page table cursor, providing efficient, powerful concurrent accesses to the page table.

Structs

Cursor

The cursor for querying over the VM space without modifying it.

CursorMut

The cursor for modifying the mappings in VM space.

UserPtConfig 🔒

VmSpace

A virtual address space for user-mode tasks, enabling safe manipulation of user-space memory.

Statics

ACTIVATED_VM_SPACE 🔒

The Arc pointer to the activated VM space on this CPU. If the pointer is NULL, it means that the activated page table is merely the kernel page table.

Type Aliases

MappedItem

The item that can be mapped into the VmSpace.