On 2/19/25 21:34, Maciej S. Szmigiero wrote:
> From: "Maciej S. Szmigiero" <maciej.szmigiero@oracle.com>
>
> Add vfio_multifd_transfer_supported() function that tells whether the
> multifd device state transfer is supported.
>
> Signed-off-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com>
Reviewed-by: CĂ©dric Le Goater <clg@redhat.com>
Thanks,
C.
> ---
> hw/vfio/migration-multifd.c | 6 ++++++
> hw/vfio/migration-multifd.h | 2 ++
> 2 files changed, 8 insertions(+)
>
> diff --git a/hw/vfio/migration-multifd.c b/hw/vfio/migration-multifd.c
> index 760b110a39b9..7328ad8e925c 100644
> --- a/hw/vfio/migration-multifd.c
> +++ b/hw/vfio/migration-multifd.c
> @@ -83,3 +83,9 @@ static VFIOStateBuffer *vfio_state_buffers_at(VFIOStateBuffers *bufs, guint idx)
> {
> return &g_array_index(bufs->array, VFIOStateBuffer, idx);
> }
> +
> +bool vfio_multifd_transfer_supported(void)
> +{
> + return multifd_device_state_supported() &&
> + migrate_send_switchover_start();
> +}
> diff --git a/hw/vfio/migration-multifd.h b/hw/vfio/migration-multifd.h
> index 64d117b27210..8fe004c1da81 100644
> --- a/hw/vfio/migration-multifd.h
> +++ b/hw/vfio/migration-multifd.h
> @@ -12,4 +12,6 @@
>
> #include "hw/vfio/vfio-common.h"
>
> +bool vfio_multifd_transfer_supported(void);
> +
> #endif
>