static void kvmclock_pre_save(void *opaque) { KVMClockState *s = opaque; struct kvm_clock_data data; int ret; if (s->clock_valid) { return; } ret = kvm_vm_ioctl(kvm_state, KVM_GET_CLOCK, &data); if (ret < 0) { fprintf(stderr, "KVM_GET_CLOCK failed: %s\n", strerror(ret)); data.clock = 0; } s->clock = data.clock; /* * If the VM is stopped, declare the clock state valid to avoid re-reading * it on next vmsave (which would return a different value). Will be reset * when the VM is continued. */ s->clock_valid = !runstate_is_running(); }