On 24/10/2019 13.40, Janosch Frank wrote:
> SIE intercept code 8 is used only on exception loops for protected
> guests. That means we need stop the guest when we see it.
>
> Signed-off-by: Janosch Frank <frankja@xxxxxxxxxxxxx>
> ---
> arch/s390/kvm/intercept.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c
> index acc1710fc472..b013a9c88d43 100644
> --- a/arch/s390/kvm/intercept.c
> +++ b/arch/s390/kvm/intercept.c
> @@ -231,6 +231,13 @@ static int handle_prog(struct kvm_vcpu *vcpu)
>
> vcpu->stat.exit_program_interruption++;
>
> + /*
> + * Intercept 8 indicates a loop of specification exceptions
> + * for protected guests
> + */
> + if (kvm_s390_pv_is_protected(vcpu->kvm))
> + return -EOPNOTSUPP;
> +
> if (guestdbg_enabled(vcpu) && per_event(vcpu)) {
> rc = kvm_s390_handle_per_event(vcpu);
> if (rc)
Reviewed-by: Thomas Huth <thuth@xxxxxxxxxx>
