This patch disables in-kernel handling of SIE intercepts for user controlled virtual machines. All intercepts are passed to userspace via KVM_EXIT_SIE exit reason just like SIE intercepts that cannot be handled in-kernel for regular KVM guests. Signed-off-by: Carsten Otte <cotte@xxxxxxxxxx> --- --- arch/s390/kvm/kvm-s390.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -572,7 +572,10 @@ rerun_vcpu: rc = __vcpu_run(vcpu); if (rc) break; - rc = kvm_handle_sie_intercept(vcpu); + if (kvm_is_ucontrol(vcpu->kvm)) + rc = -EOPNOTSUPP; + else + rc = kvm_handle_sie_intercept(vcpu); } while (!signal_pending(current) && !rc); if (rc == SIE_INTERCEPT_RERUNVCPU) -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
