2356 	struct kvm_arch *ka = &vcpu->kvm->arch;  in kvm_write_system_time()  local
2359 		if (ka->boot_vcpu_runs_old_kvmclock != old_msr)  in kvm_write_system_time()
2362 		ka->boot_vcpu_runs_old_kvmclock = old_msr;  in kvm_write_system_time()
2517 	struct kvm_arch *ka = &vcpu->kvm->arch;  in kvm_track_tsc_matching()  local
2525 	bool use_master_clock = (ka->nr_vcpus_matched_tsc + 1 ==  in kvm_track_tsc_matching()
2535 	if ((ka->use_master_clock && new_generation) ||  in kvm_track_tsc_matching()
2536 	    (ka->use_master_clock != use_master_clock))  in kvm_track_tsc_matching()
2539 	trace_kvm_track_tsc(vcpu->vcpu_id, ka->nr_vcpus_matched_tsc,  in kvm_track_tsc_matching()
2541 		            ka->use_master_clock, gtod->clock.vclock_mode);  in kvm_track_tsc_matching()
3017 	struct kvm_arch *ka = &kvm->arch;  in pvclock_update_vm_gtod_copy()  local
3022 	vcpus_matched = (ka->nr_vcpus_matched_tsc + 1 ==  in pvclock_update_vm_gtod_copy()
3030 					&ka->master_kernel_ns,  in pvclock_update_vm_gtod_copy()
3031 					&ka->master_cycle_now);  in pvclock_update_vm_gtod_copy()
3033 	ka->use_master_clock = host_tsc_clocksource && vcpus_matched  in pvclock_update_vm_gtod_copy()
3034 				&& !ka->backwards_tsc_observed  in pvclock_update_vm_gtod_copy()
3035 				&& !ka->boot_vcpu_runs_old_kvmclock;  in pvclock_update_vm_gtod_copy()
3037 	if (ka->use_master_clock)  in pvclock_update_vm_gtod_copy()
3041 	trace_kvm_update_master_clock(ka->use_master_clock, vclock_mode,  in pvclock_update_vm_gtod_copy()
3067 	struct kvm_arch *ka = &kvm->arch;  in kvm_end_pvclock_update()  local
3071 	write_seqcount_end(&ka->pvclock_sc);  in kvm_end_pvclock_update()
3072 	raw_spin_unlock_irq(&ka->tsc_write_lock);  in kvm_end_pvclock_update()
3108 	struct kvm_arch *ka = &kvm->arch;  in __get_kvmclock()  local
3115 	if (ka->use_master_clock &&  in __get_kvmclock()
3128 		hv_clock.tsc_timestamp = ka->master_cycle_now;  in __get_kvmclock()
3129 		hv_clock.system_time = ka->master_kernel_ns + ka->kvmclock_offset;  in __get_kvmclock()
3135 		data->clock = get_kvmclock_base_ns() + ka->kvmclock_offset;  in __get_kvmclock()
3143 	struct kvm_arch *ka = &kvm->arch;  in get_kvmclock()  local
3147 		seq = read_seqcount_begin(&ka->pvclock_sc);  in get_kvmclock()
3149 	} while (read_seqcount_retry(&ka->pvclock_sc, seq));  in get_kvmclock()
3219 	struct kvm_arch *ka = &v->kvm->arch;  in kvm_guest_time_update()  local
3232 		ka->xen_hvm_config.flags & KVM_XEN_HVM_CONFIG_PVCLOCK_TSC_UNSTABLE;  in kvm_guest_time_update()
3243 		seq = read_seqcount_begin(&ka->pvclock_sc);  in kvm_guest_time_update()
3244 		use_master_clock = ka->use_master_clock;  in kvm_guest_time_update()
3246 			host_tsc = ka->master_cycle_now;  in kvm_guest_time_update()
3247 			kernel_ns = ka->master_kernel_ns;  in kvm_guest_time_update()
3249 	} while (read_seqcount_retry(&ka->pvclock_sc, seq));  in kvm_guest_time_update()
3349 	struct kvm_arch *ka = &kvm->arch;  in kvm_get_wall_clock_epoch()  local
3355 		seq = read_seqcount_begin(&ka->pvclock_sc);  in kvm_get_wall_clock_epoch()
3358 		if (!ka->use_master_clock)  in kvm_get_wall_clock_epoch()
3380 		hv_clock.tsc_timestamp = ka->master_cycle_now;  in kvm_get_wall_clock_epoch()
3381 		hv_clock.system_time = ka->master_kernel_ns + ka->kvmclock_offset;  in kvm_get_wall_clock_epoch()
3383 	} while (read_seqcount_retry(&ka->pvclock_sc, seq));  in kvm_get_wall_clock_epoch()
3416 #define KVMCLOCK_UPDATE_DELAY msecs_to_jiffies(100)
3422 	struct kvm_arch *ka = container_of(dwork, struct kvm_arch,  in kvmclock_update_fn()  local
3424 	struct kvm *kvm = container_of(ka, struct kvm, arch);  in kvmclock_update_fn()
3447 	struct kvm_arch *ka = container_of(dwork, struct kvm_arch,  in kvmclock_sync_fn()  local
3449 	struct kvm *kvm = container_of(ka, struct kvm, arch);  in kvmclock_sync_fn()
4306 		 * 100MHz, model 2 000 in bits 18:16 indicating 100MHz,  in kvm_get_msr_common()
6983 	struct kvm_arch *ka = &kvm->arch;  in kvm_vm_ioctl_set_clock()  local
7018 	if (ka->use_master_clock)  in kvm_vm_ioctl_set_clock()
7019 		now_raw_ns = ka->master_kernel_ns;  in kvm_vm_ioctl_set_clock()
7022 	ka->kvmclock_offset = data.clock - now_raw_ns;  in kvm_vm_ioctl_set_clock()