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Last active November 19, 2019 09:24
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cloud-hypervisor-migration.md

Terminology

  • Migratable Component: A VMM component that declares itself as migratable. Examples of migratable component: A virtio device, a vCPU, RAM, etc.

  • Migratable Component State: A migratable component state...

  • Migrator

HTTP API

  • /api/v1/vm.pause
  • /api/v1/vm.resume
  • /api/v1/vm.snapshot
  • /api/v1/vm.restore

Internal API

MigrationRegister (Migratable Component -> Migration thread)

For any component to register itself against the VMM as migratable.

Snapshot (Migration thread -> Migratable Component)

For the migration thread to fetch a migratable component state. It is up to the migration thread to aggregate all states into a state store.

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