Avi, what about this approach? Christian Borntraeger (1): kvm-s390: use kvm_vcpu_on_spin for diag 0x44 Konstantin Weitz (1): kvm-s390: Implement the directed yield (diag 9c) hypervisor call for KVM arch/s390/include/asm/kvm_host.h | 1 + arch/s390/kvm/diag.c | 29 +++++++++++++++++++++++--- arch/s390/kvm/kvm-s390.c | 1 + include/linux/kvm_host.h | 1 + virt/kvm/kvm_main.c | 42 +++++++++++++++++++++++--------------- 5 files changed, 55 insertions(+), 19 deletions(-) -- 1.7.9.6 -- 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