2016-02-22 15:08, Yuanhan Liu:

On Fri, Feb 19, 2016 at 04:01:25PM +0100, Thomas Monjalon wrote:

quoted

2016-01-29 12:57, Yuanhan Liu:

quoted

This patch set adds the vhost-user live migration support.

The major task behind that is to log pages we touched during
live migration, including used vring and desc buffer. So, this
patch set is basically about adding vhost log support, and
using it.

Another important thing is that you need notify the switches
about the VM location change after migration is done. GUEST_ANNOUNCE
feature is for that, which sends an GARP message after migration.
For older kernel (<= v3.4) without GUEST_ANNOUNCE support,
we construct and broadcast a RARP message, with the mac address
from VHOST_USER_SEND_RARP payload.

Patchset
========
- Patch 1 handles VHOST_USER_SET_LOG_BASE, which tells us where
  the dirty memory bitmap is.
    
- Patch 2 introduces a vhost_log_write() helper function to log
  pages we are gonna change.

- Patch 3 logs changes we made to used vring.

- Patch 4 logs changes we made to vring desc buffer.

- Patch 5 and 7 add some feature bits related to live migration.

- patch 6 does the RARP construction and broadcast job.

Patches 2 and 3 have been merged to avoid a compilation error.
Applied, thanks

Actually, there was a ongoing discussion about patch 6, the handling
of VHOST_USER_SEND_RARP request:

  http://dpdk.org/ml/archives/dev/2016-February/033539.html

Maybe you have seen that and I didn't make it clear; my bad. Since you
have already applied it. I will make a standalone patch, and try to
send it out today.

Yes I've wrongly understood there was no problem.
The series would have not been applied if you had said that a new version
was needed or if you had set the patchwork status to "Changes Requested".
Sorry, we'll do better next times ;)