On 11/03/2015 04:56 AM, zhanghailiang wrote:
> Guest will enter this state when paused to save/restore VM state
> under colo checkpoint.
> 
> Cc: Eric Blake <eblake@redhat.com>
> Cc: Markus Armbruster <armbru@redhat.com>
> Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
> Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
> Signed-off-by: Gonglei <arei.gonglei@huawei.com>
> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
> Reviewed-by: Eric Blake <eblake@redhat.com>
> ---
>  qapi-schema.json | 7 ++++++-
>  vl.c             | 8 ++++++++
>  2 files changed, 14 insertions(+), 1 deletion(-)
> 
> diff --git a/qapi-schema.json b/qapi-schema.json
> index 5c4fe6d..49f2a90 100644
> --- a/qapi-schema.json
> +++ b/qapi-schema.json
> @@ -154,12 +154,15 @@
>  # @watchdog: the watchdog action is configured to pause and has been triggered
>  #
>  # @guest-panicked: guest has been panicked as a result of guest OS panic
> +#
> +# @colo: guest is paused to save/restore VM state under colo checkpoint (since
> +# 2.5)

Will need a tweak to 2.6;

>  ##
>  { 'enum': 'RunState',
>    'data': [ 'debug', 'inmigrate', 'internal-error', 'io-error', 'paused',
>              'postmigrate', 'prelaunch', 'finish-migrate', 'restore-vm',
>              'running', 'save-vm', 'shutdown', 'suspended', 'watchdog',
> -            'guest-panicked' ] }
> +            'guest-panicked', 'colo' ] }
>  
>  ##
>  # @StatusInfo:
> @@ -434,6 +437,8 @@
>  #
>  # @failed: some error occurred during migration process.
>  #
> +# @colo: VM is in the process of fault tolerance. (since 2.5)

Likewise.  But my R-b still stands after that minor tweak.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org