[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH v2] s390x/kvm: Guest Migration TOD clock synchro
From: |
Cornelia Huck |
Subject: |
Re: [Qemu-devel] [PATCH v2] s390x/kvm: Guest Migration TOD clock synchronization |
Date: |
Fri, 13 Mar 2015 10:40:49 +0100 |
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.