This patch introduces block migration called during live migration. Block
are being copied to the destination in an async way. First the code will
transfer the whole disk and then transfer all dirty blocks accumulted during
the migration.
Still need to improve transition from the iterative phase
This patch adds the option to activate non-shared storage migration from the
monitor.
The migration command is as follows:
(qemu) migrate -d tcp:0: # for ordinary live migration
(qemu) migrate -d -b tcp:0: # for live migration with complete storage copy
(qemu) migrate -d -i tcp:0: # for
This series adds support for live migration without shared storage, means
copy the storage while migrating. It was tested with KVM. Supports 2 ways
to replicate the storage during migration:
1. Complete copy of storage to destination
2. Assuming the storage is cow based, copy only the allocated
To support live migration without shared storage we need to be able to trace
writes to disk while migrating. This Patch expose dirty block tracking per
device to be polled from upper layer.
Changes from v4:
- Register dirty tracking for each block device.
- Minor coding style issues.
- Block.c wil
