Re: [Qemu-devel] [PATCH v2] s390x/kvm: Guest Migration TOD clock synchronization

[Cornelia Huck]

On Mon,  9 Mar 2015 15:56:08 +0100
Jens Freimann <address@hidden> wrote:

> From: "Jason J. Herne" <address@hidden>
> 
> Synchronizes the guest TOD clock across a migration by sending the guest TOD
> clock value to the destination system. If the guest TOD clock is not preserved
> across a migration then the guest's view of time will snap backwards if the
> destination host clock is behind the source host clock. This will cause the
> guest to hang immediately upon resuming on the destination system.
> 
> Reviewed-by: David Hildenbrand <address@hidden>
> Signed-off-by: Jason J. Herne <address@hidden>
> Signed-off-by: Jens Freimann <address@hidden>
> 
> ---
> v1->v2:
>  * removed unrelated change in linux-headers
> 
> ---
>  hw/s390x/s390-virtio-ccw.c |  4 ++++
>  hw/s390x/s390-virtio.c     | 52 
> ++++++++++++++++++++++++++++++++++++++++++++++
>  target-s390x/cpu.h         | 34 ++++++++++++++++++++++++++++++
>  target-s390x/kvm.c         | 39 ++++++++++++++++++++++++++++++++++
>  4 files changed, 129 insertions(+)

Applied to my s390-next branch.