diff options
| author | Renato Botelho <renato@netgate.com> | 2017-02-23 06:28:41 -0300 |
|---|---|---|
| committer | Renato Botelho <renato@netgate.com> | 2017-02-23 06:28:41 -0300 |
| commit | 82ceeb2ea625cd9bff60f2863b9a0830f55b7905 (patch) | |
| tree | 263ca9347bf664a4489743f9302e699ce14de1df /sys/dev/hyperv/vmbus/hyperv.c | |
| parent | 4a05f5440acda223e6a0ec5157bc32ecc0f09ff9 (diff) | |
| parent | d20dd8b36e7a565be7bfbb22aade51c8ffd753e9 (diff) | |
| download | FreeBSD-src-devel.zip FreeBSD-src-devel.tar.gz | |
Merge remote-tracking branch 'origin/stable/10' into develdevel
Diffstat (limited to 'sys/dev/hyperv/vmbus/hyperv.c')
| -rw-r--r-- | sys/dev/hyperv/vmbus/hyperv.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/sys/dev/hyperv/vmbus/hyperv.c b/sys/dev/hyperv/vmbus/hyperv.c index 2df313b..144bff5 100644 --- a/sys/dev/hyperv/vmbus/hyperv.c +++ b/sys/dev/hyperv/vmbus/hyperv.c @@ -77,6 +77,8 @@ u_int hyperv_recommends; static u_int hyperv_pm_features; static u_int hyperv_features3; +hyperv_tc64_t hyperv_tc64; + static struct timecounter hyperv_timecounter = { .tc_get_timecount = hyperv_get_timecount, .tc_poll_pps = NULL, @@ -96,6 +98,13 @@ hyperv_get_timecount(struct timecounter *tc __unused) return rdmsr(MSR_HV_TIME_REF_COUNT); } +static uint64_t +hyperv_tc64_rdmsr(void) +{ + + return (rdmsr(MSR_HV_TIME_REF_COUNT)); +} + uint64_t hypercall_post_message(bus_addr_t msg_paddr) { @@ -232,6 +241,12 @@ hyperv_init(void *dummy __unused) if (hyperv_features & CPUID_HV_MSR_TIME_REFCNT) { /* Register Hyper-V timecounter */ tc_init(&hyperv_timecounter); + + /* + * Install 64 bits timecounter method for other modules + * to use. + */ + hyperv_tc64 = hyperv_tc64_rdmsr; } } SYSINIT(hyperv_initialize, SI_SUB_HYPERVISOR, SI_ORDER_FIRST, hyperv_init, |
