Re: [Qemu-devel] [PATCH V2 3/5] Introduce premigrate RunState.

[Anthony Liguori <anthony@codemonkey.ws>]

On 12/09/2011 03:54 PM, Anthony PERARD wrote:
> This new state will be used by Xen functions to know QEMU will wait for a
> migration. This is important to know for memory related function because the
> memory is already allocated and reallocated them will not works.
>
> Signed-off-by: Anthony PERARD<anthony.perard@citrix.com>

Luiz, please Ack.  In the future, when you make QMP changes, please CC the 
appropriate maintainer.

Regards,

Anthony Liguori

> ---
>   qapi-schema.json |    2 +-
>   vl.c             |    4 ++++
>   2 files changed, 5 insertions(+), 1 deletions(-)
>
> diff --git a/qapi-schema.json b/qapi-schema.json
> index cb1ba77..bd77444 100644
> --- a/qapi-schema.json
> +++ b/qapi-schema.json
> @@ -121,7 +121,7 @@
>   { 'enum': 'RunState',
>     'data': [ 'debug', 'inmigrate', 'internal-error', 'io-error', 'paused',
>               'postmigrate', 'prelaunch', 'finish-migrate', 'restore-vm',
> -            'running', 'save-vm', 'shutdown', 'watchdog' ] }
> +            'running', 'save-vm', 'shutdown', 'watchdog', 'premigrate' ] }
>
>   ##
>   # @StatusInfo:
> diff --git a/vl.c b/vl.c
> index e7dced2..a291416 100644
> --- a/vl.c
> +++ b/vl.c
> @@ -351,8 +351,11 @@ static const RunStateTransition runstate_transitions_def[] = {
>
>       { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
>       { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
> +    { RUN_STATE_PRELAUNCH, RUN_STATE_PREMIGRATE },
>       { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
>
> +    { RUN_STATE_PREMIGRATE, RUN_STATE_INMIGRATE },
> +
>       { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
>       { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
>
> @@ -2975,6 +2978,7 @@ int main(int argc, char **argv, char **envp)
>                   break;
>               case QEMU_OPTION_incoming:
>                   incoming = optarg;
> +                runstate_set(RUN_STATE_PREMIGRATE);
>                   break;
>               case QEMU_OPTION_nodefaults:
>                   default_serial = 0;