diff options
Diffstat (limited to 'sys/dev/hyperv/utilities/vmbus_timesync.c')
| -rw-r--r-- | sys/dev/hyperv/utilities/vmbus_timesync.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/sys/dev/hyperv/utilities/vmbus_timesync.c b/sys/dev/hyperv/utilities/vmbus_timesync.c index 7610027..66b1e48 100644 --- a/sys/dev/hyperv/utilities/vmbus_timesync.c +++ b/sys/dev/hyperv/utilities/vmbus_timesync.c @@ -52,8 +52,7 @@ __FBSDID("$FreeBSD$"); VMBUS_ICVER_LE(VMBUS_IC_VERSION(4, 0), (sc)->ic_msgver) #define VMBUS_TIMESYNC_DORTT(sc) \ - (VMBUS_TIMESYNC_MSGVER4((sc)) &&\ - (hyperv_features & CPUID_HV_MSR_TIME_REFCNT)) + (VMBUS_TIMESYNC_MSGVER4((sc)) && hyperv_tc64 != NULL) static int vmbus_timesync_probe(device_t); static int vmbus_timesync_attach(device_t); @@ -117,7 +116,7 @@ vmbus_timesync(struct vmbus_ic_softc *sc, uint64_t hvtime, uint64_t sent_tc, uint64_t hv_ns, vm_ns, rtt = 0; if (VMBUS_TIMESYNC_DORTT(sc)) - rtt = rdmsr(MSR_HV_TIME_REF_COUNT) - sent_tc; + rtt = hyperv_tc64() - sent_tc; hv_ns = (hvtime - VMBUS_ICMSG_TS_BASE + rtt) * HYPERV_TIMER_NS_FACTOR; nanotime(&vm_ts); |
