diff options
Diffstat (limited to 'arch/s390/kvm/kvm-s390.c')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index a090779..87bd602 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -521,22 +521,12 @@ static int kvm_s390_set_tod_high(struct kvm *kvm, struct kvm_device_attr *attr) static int kvm_s390_set_tod_low(struct kvm *kvm, struct kvm_device_attr *attr) { - struct kvm_vcpu *cur_vcpu; - unsigned int vcpu_idx; u64 gtod; if (copy_from_user(>od, (void __user *)attr->addr, sizeof(gtod))) return -EFAULT; - mutex_lock(&kvm->lock); - preempt_disable(); - kvm->arch.epoch = gtod - get_tod_clock(); - kvm_s390_vcpu_block_all(kvm); - kvm_for_each_vcpu(vcpu_idx, cur_vcpu, kvm) - cur_vcpu->arch.sie_block->epoch = kvm->arch.epoch; - kvm_s390_vcpu_unblock_all(kvm); - preempt_enable(); - mutex_unlock(&kvm->lock); + kvm_s390_set_tod_clock(kvm, gtod); VM_EVENT(kvm, 3, "SET: TOD base: 0x%llx\n", gtod); return 0; } @@ -1906,6 +1896,22 @@ retry: return 0; } +void kvm_s390_set_tod_clock(struct kvm *kvm, u64 tod) +{ + struct kvm_vcpu *vcpu; + int i; + + mutex_lock(&kvm->lock); + preempt_disable(); + kvm->arch.epoch = tod - get_tod_clock(); + kvm_s390_vcpu_block_all(kvm); + kvm_for_each_vcpu(i, vcpu, kvm) + vcpu->arch.sie_block->epoch = kvm->arch.epoch; + kvm_s390_vcpu_unblock_all(kvm); + preempt_enable(); + mutex_unlock(&kvm->lock); +} + /** * kvm_arch_fault_in_page - fault-in guest page if necessary * @vcpu: The corresponding virtual cpu |