Re: [PATCH v9] KVM: s390: Add new reset vcpu API

[Cornelia Huck <cohuck@redhat.com>]

On Thu, 30 Jan 2020 07:55:59 -0500
Janosch Frank <frankja@linux.ibm.com> wrote:

> The architecture states that we need to reset local IRQs for all CPU
> resets. Because the old reset interface did not support the normal CPU
> reset we never did that on a normal reset.
> 
> Let's implement an interface for the missing normal and clear resets
> and reset all local IRQs, registers and control structures as stated
> in the architecture.
> 
> Userspace might already reset the registers via the vcpu run struct,
> but as we need the interface for the interrupt clearing part anyway,
> we implement the resets fully and don't rely on userspace to reset the
> rest.
> 
> Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
> Reviewed-by: Cornelia Huck <cohuck@redhat.com>
> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
> ---
>  Documentation/virt/kvm/api.txt | 43 +++++++++++++++++
>  arch/s390/kvm/kvm-s390.c       | 86 +++++++++++++++++++++++-----------
>  include/uapi/linux/kvm.h       |  5 ++
>  3 files changed, 106 insertions(+), 28 deletions(-)

This version looks good to me.