Re: [Qemu-devel] [PATCH 1/3] vmstate: add no_migrate flag to VMStateDescription

[Anthony Liguori <anthony@codemonkey.ws>]

On 07/08/2011 03:53 AM, Gerd Hoffmann wrote:
> This allows to easily tag devices as non-migratable,
> so any attempt to migrate a virtual machine with the
> device in question active will make migration fail.
>
> Signed-off-by: Gerd Hoffmann<kraxel@redhat.com>

register_device_unmigratable()?

Regards,

Anthony Liguori

> ---
>   hw/hw.h  |    1 +
>   savevm.c |    1 +
>   2 files changed, 2 insertions(+), 0 deletions(-)
>
> diff --git a/hw/hw.h b/hw/hw.h
> index 9dd7096..1eb3486 100644
> --- a/hw/hw.h
> +++ b/hw/hw.h
> @@ -324,6 +324,7 @@ typedef struct VMStateSubsection {
>
>   struct VMStateDescription {
>       const char *name;
> +    int no_migrate;
>       int version_id;
>       int minimum_version_id;
>       int minimum_version_id_old;
> diff --git a/savevm.c b/savevm.c
> index 8139bc7..fa2da3e 100644
> --- a/savevm.c
> +++ b/savevm.c
> @@ -1234,6 +1234,7 @@ int vmstate_register_with_alias_id(DeviceState *dev, int instance_id,
>       se->opaque = opaque;
>       se->vmsd = vmsd;
>       se->alias_id = alias_id;
> +    se->no_migrate = vmsd->no_migrate;
>
>       if (dev&&  dev->parent_bus&&  dev->parent_bus->info->get_dev_path) {
>           char *id = dev->parent_bus->info->get_dev_path(dev);