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

[Cornelia Huck]

On Fri, 28 Sep 2018 11:34:35 +0200
Janosch Frank <address@hidden> 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

"As the QEMU code actively enabling huge page support in the kernel was
added with 3.1, let's glue..."

> 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 <address@hidden>
> ---
>  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(+)

Looks good to me, waiting for review by others.