[dpdk-dev] [PATCH v3 0/8] vhost-user live migration support

[Thomas Monjalon]

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