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[Qemu-devel] [RFC PATCH 0/5] asynchronous migration state change handler
From: |
Yonit Halperin |
Subject: |
[Qemu-devel] [RFC PATCH 0/5] asynchronous migration state change handlers |
Date: |
Tue, 5 Jun 2012 08:49:41 +0300 |
Hi,
I'm sending this patch series again. This time with an additional patch
for setting a migrate_end notifier completion callback for spice migration
interface. I've also added more detailed commit messages.
This patch series introduces async handlers for notifiers, and integrates them
with migration state change notifications.
Asynchronous migration completion notifier is essential for allowing spice to
cleanly
complete the src server connection to the client, and transfer the connection
to the target.
Currently, as soon as the migration completes, the src qemu can be closed by the
management, and spice cannot complete the spice-connection migration.
In order to support spice seamless migration, next to these patches, I plan to
add:
(1) notifier for switching from the live phase of the migration to the non-live
phase,
before completing savevm.
Spice will use this notification to "finalize" the connection to the
client: send
and receive all in-flight data.
(2) add vmstates for spice data that need to be migrated, e.g.,
usb/agent/smartcard
buffers that were sent from the client and haven't been written to device
yet.
We would also want to migrate data that will allow us to continue the new
spice
connection from the same point the old one stopped. Without requiring
special
treatment in the client side.
Regards,
Yonit.
Yonit Halperin (5):
notifiers: add support for async notifiers handlers
migration: moving migration start code to a separated routine
migration: moving migration completion code to a separated routine
migration: replace migration state change notifier with async
notifiers
spice: turn spice "migration end" handler to be async
input.c | 2 +-
migration.c | 154 ++++++++++++++++++++++++++++++++++++++++---------------
migration.h | 11 +++-
notify.c | 78 ++++++++++++++++++++++++++--
notify.h | 55 ++++++++++++++++++--
qemu-timer.c | 2 +-
ui/spice-core.c | 58 +++++++++++++++------
vl.c | 2 +-
8 files changed, 290 insertions(+), 72 deletions(-)
--
1.7.7.6
- [Qemu-devel] [RFC PATCH 0/5] asynchronous migration state change handlers,
Yonit Halperin <=
- [Qemu-devel] [RFC PATCH 1/5] notifiers: add support for async notifiers handlers, Yonit Halperin, 2012/06/05
- [Qemu-devel] [RFC PATCH 2/5] migration: moving migration start code to a separated routine, Yonit Halperin, 2012/06/05
- [Qemu-devel] [RFC PATCH 3/5] migration: moving migration completion code to a separated routine, Yonit Halperin, 2012/06/05
- [Qemu-devel] [RFC PATCH 5/5] spice: turn spice "migration end" handler to be async, Yonit Halperin, 2012/06/05
- [Qemu-devel] [RFC PATCH 4/5] migration: replace migration state change notifier with async notifiers, Yonit Halperin, 2012/06/05
- Re: [Qemu-devel] [RFC PATCH 0/5] asynchronous migration state change handlers, Anthony Liguori, 2012/06/05