Re: [Qemu-devel] [PATCH] s390x: Fence huge pages prior to 3.1

[Cornelia Huck <cohuck@redhat.com>]

On Fri, 28 Sep 2018 11:34:35 +0200
Janosch Frank <frankja@linux.ibm.com> wrote:

> As the kernel has no way of disallowing the start of a huge page
> backed VM, we can migrate a running huge backed VM to a host that has
> no huge page KVM support.
> 
> Let's glue huge page support support to the 3.1 machine, so we do not
> migrate to a destination host that doesn't have QEMU huge page support
> and can stop migration if KVM doesn't indicate support.
> 
> Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
> ---
>  hw/s390x/s390-virtio-ccw.c         | 10 ++++++++++
>  include/hw/s390x/s390-virtio-ccw.h |  3 +++
>  target/s390x/kvm.c                 |  6 ++++++
>  3 files changed, 19 insertions(+)

Thanks, applied.