diff options
Diffstat (limited to 'arch/s390/kvm')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 36c654d2d64a..628494a43425 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -196,6 +196,10 @@ out_nokvm: void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu) { VCPU_EVENT(vcpu, 3, "%s", "free cpu"); + if (vcpu->kvm->arch.sca->cpu[vcpu->vcpu_id].sda == + (__u64) vcpu->arch.sie_block) + vcpu->kvm->arch.sca->cpu[vcpu->vcpu_id].sda = 0; + smp_mb(); free_page((unsigned long)(vcpu->arch.sie_block)); kvm_vcpu_uninit(vcpu); kfree(vcpu); @@ -310,8 +314,10 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, vcpu->arch.sie_block->icpua = id; BUG_ON(!kvm->arch.sca); - BUG_ON(kvm->arch.sca->cpu[id].sda); - kvm->arch.sca->cpu[id].sda = (__u64) vcpu->arch.sie_block; + if (!kvm->arch.sca->cpu[id].sda) + kvm->arch.sca->cpu[id].sda = (__u64) vcpu->arch.sie_block; + else + BUG_ON(!kvm->vcpus[id]); /* vcpu does already exist */ vcpu->arch.sie_block->scaoh = (__u32)(((__u64)kvm->arch.sca) >> 32); vcpu->arch.sie_block->scaol = (__u32)(__u64)kvm->arch.sca; |