Module memory 

Provides primitives for interfacing with memory

TODO: memory map overview?

Page map region

All conventional memory (i.e. not MMIO, ACPI firmware data, etc.) is mapped into the “page map region”, meaning that the kernel can directly access it without having to create a Mapping first. This is useful for writing to userspace in a different address space, or for storing allocator metadata.

Physical memory owned through a Frames<true> can be directly accessed via Frames::get() and Frames::get_mut(). Raw PhysicalAddresses can be converted to a VirtualAddress in the page map region by calling PhysicalAddress::to_virtual. The returned address is only safe to access if the PhysicalAddress pointed to conventional memory.

Modules

asan

ABI for interfacing with KASAN shadow memory

type_ops 🔒

Structs

Framesfull

An owned region of physical memory

PhysicalAddress

A physical memory address

RawFrame

RawPage

VirtualAddress

A virtual memory address

Constants

PAGE_MAP_OFFSET 🔒

PAGE_SIZE

The number of bytes in the smallest sized page for the current architecture