Module swap::controller

crate for the vmm-swap feature.

Structs

• SwapController
  SwapController provides APIs to control vmm-swap.
• SwapDeviceHelper
  Helper to create SwapDeviceUffdSender from child processes (e.g. JailWarden for hotplug devices).
• SwapDeviceUffdSender
  Create a new userfaultfd and send it to the monitor process.
• VmmSwapResult 🔒

Enums

• Command 🔒
  Commands used in vmm-swap feature internally sent to the monitor process from the main and other processes.
• State 🔒
• Token 🔒

Constants

• MAX_SWAP_CHUNK_SIZE 🔒
  The max size of chunks to swap out/in at once.
• MAX_TRIM_PAGES 🔒
  The max pages to trim at once.

Traits

• PrepareFork
  Create a new SwapDeviceUffdSender which is passed to the forked child process.

Functions

• abort_background_job 🔒
• count_resident_pages 🔒
  Returns count of pages active on the guest memory.
• handle_enable_command 🔒
• handle_vmm_swap 🔒
• monitor_process 🔒
  The main thread of the monitor process.
• move_guest_to_staging 🔒
• regions_from_guest_memory 🔒