Crate swap

crate for the vmm-swap feature.

Modules

• controller 🔒
  crate for the vmm-swap feature.
• file 🔒
• file_truncator 🔒
• page_handler
  PageHandler manages the page states of multiple regions.
• pagesize 🔒
  Helpers to calculate values derived from page size.
• present_list 🔒
• processes 🔒
• staging 🔒
• uffd_list 🔒
• userfaultfd
  Provides wrapper of userfaultfd crate for vmm-swap feature.
• worker
  Multi-thread worker.

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.
• SwapMetrics
  Current metrics of vmm-swap.
• SwapStateTransition
  Latency and number of pages of swap operations (move to staging, swap out, swap in).
• SwapStatus
  The response to crosvm swap status command.

Enums

• SwapState
  Current state of vmm-swap.

Traits

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