You can find the latest migration documentation here:
https://qemu.org/docs/master/devel/migration
750 bytes (106 words) - 03:22, 10 January 2024
We need to decompose migration into three different problems:
...a 'set-migration-capabilities' command that can mask some of the supported features.
5 KB (812 words) - 23:50, 25 July 2011
Migration compatibility is not affected by these changes, as the
- Block migration
8 KB (1,202 words) - 16:21, 24 April 2014
You're probably looking at this page because migration has just failed; sorry about that, but hopefully this page will give you so
QEMU's migration is like lifting the state out of one machine and dumping it into another -
20 KB (3,495 words) - 18:08, 29 March 2023
Use multiple FD's for migration
Currently there is a single stream for migration, this causes several problems:
2 KB (308 words) - 13:00, 6 February 2023
| [[Planning/SoftFeatureFreeze|Soft feature freeze]]. Major features should have initial code committed by this date.
== Targeted Features ==
1 KB (159 words) - 15:38, 11 October 2016
| [[Planning/SoftFeatureFreeze|Soft feature freeze]]. All features
should have patches on the list by this date; major features should
3 KB (421 words) - 08:31, 12 October 2016
| [[Planning/SoftFeatureFreeze|Soft feature freeze]]. Major features should have initial code committed by this date.
* [[Planning/1.4/Migration compatibility]]
898 bytes (128 words) - 10:34, 12 October 2016
post-copy based live migration
This is yet another live migration mechanism for QEMU/KVM, which
3 KB (432 words) - 06:04, 25 November 2015
...fgang Bumiller; fixed by stefan's virtio-balloon: fix QEMU 4.0 config size migration incompatibility 2019-07-10 - fixed by 2bbadb08ce272d65e1f78621002008b07d1e
...ost from 14th July - 'migration: always initial RAMBlock.bmap to 1 for new migration' - fixed by 40c4d4a835453452a262f32450a0449886aa19ce
3 KB (488 words) - 20:51, 5 November 2019
We need to decompose migration into three different problems:
...a 'set-migration-capabilities' command that can mask some of the supported features.
5 KB (812 words) - 23:50, 25 July 2011
=== Removed features and incompatible changes ===
...[https://qemu-project.gitlab.io/qemu/about/removed-features.html 'Removed features'] page for details of suggested replacement functionality.
2 KB (214 words) - 15:30, 15 April 2024
...crash with -device hda-duplex - fix posted: 2018-07-24: audio/hda: Fix migration
* Arm migration of v8M CPUs is broken (not quite a regression)
3 KB (523 words) - 20:58, 1 April 2019
* migration failure of usb storage on xhci under a PCI bridge; works in 2.8 (See patch
...devices don't allow writes to the image on the destination even while the migration is still running)
3 KB (397 words) - 00:07, 29 August 2017
* Storage migration is broken at dst side ("nbd_server_add -w" not working with "-incoming").
* NBD storage migration broken; see https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1711602
1 KB (222 words) - 19:15, 6 December 2017
Post-copy based live migration
A postcopy implementation that allows migration of guests that have large page change rates (relative to the available band
6 KB (885 words) - 12:28, 16 March 2017
* Various minor bugfixes; no new features in this release.
* Many fixes to the Q35 chipset emulation, including experimental AHCI migration support and support for device assignment.
4 KB (589 words) - 12:24, 19 February 2013
migration.
...e basic code of the packet virtqueue in vhost-shadow-virtqueue.c, ignoring features like indirect.
3 KB (405 words) - 14:57, 12 February 2024
* Pending migration PR https://lists.gnu.org/archive/html/qemu-devel/2019-03/msg04457.html
* migration of intel_iommu due to root_scalable field
4 KB (634 words) - 23:44, 1 October 2019
* Source QEMU crashes during migration when format and protocol block nodes were created separately (typical -bloc
* fix some segmentation faults and migration issues -- issues are minor and not regressions
3 KB (531 words) - 15:15, 4 September 2019
...or Mode Execution Prevention) and SMAP (Supervisor Mode Access Prevention) features of newer x86 processors.
...se, bmi1, hle, avx2, smep, bmi2, erms, invpcid, rtm) and "Opteron_G5" (new features: tbm, f16c, fma)
6 KB (951 words) - 16:38, 15 January 2013
* ESP acceptance test/migration fix (see https://lists.gnu.org/archive/html/qemu-devel/2021-04/msg00860.htm
* migration: Deprecate redundant query-migrate result @blocked
4 KB (610 words) - 14:09, 19 October 2021
* no dirty logging support, since that live migration is not included in this version;
...erences minimal. This will make it easy to add for new features like live migration later once they have been introduced in the VFIO community.
4 KB (603 words) - 18:25, 17 August 2020
* [[Documentation/Migration with shared storage|Set up storage for live migration]]
* [[Features/RemovedFeatures|Replacements for removed features]]
4 KB (580 words) - 07:28, 9 January 2023
...and can be used by firmware directly. This will in the future enable new features without modifications of all firmware components (SeaBIOS, OVMF, CoreBoot)
=== Migration ===
4 KB (563 words) - 11:31, 10 December 2013
