search for: do_settimeofday

...ter reboot, restore, etc. + */ +static void adj_guesttime(winfiletime_t hosttime, u8 flags) +{ + s64 host_tns; + struct timespec host_ts; + static s32 scnt = 50; + + host_tns = (hosttime - WLTIMEDELTA) * 100; + host_ts = ns_to_timespec(host_tns); + + if ((flags & ICTIMESYNCFLAG_SYNC) != 0) { + do_settimeofday(&host_ts); + return; + } + + if ((flags & ICTIMESYNCFLAG_SAMPLE) != 0 && + scnt > 0) { + scnt--; + do_settimeofday(&host_ts); + } + + return; +} + +/* + * Time Sync Channel message handler. + */ +static void timesync_onchannelcallback(void *context) +{ + struct vmbus_c...

...ter reboot, restore, etc. + */ +static void adj_guesttime(winfiletime_t hosttime, u8 flags) +{ + s64 host_tns; + struct timespec host_ts; + static s32 scnt = 50; + + host_tns = (hosttime - WLTIMEDELTA) * 100; + host_ts = ns_to_timespec(host_tns); + + if ((flags & ICTIMESYNCFLAG_SYNC) != 0) { + do_settimeofday(&host_ts); + return; + } + + if ((flags & ICTIMESYNCFLAG_SAMPLE) != 0 && + scnt > 0) { + scnt--; + do_settimeofday(&host_ts); + } + + return; +} + +/* + * Time Sync Channel message handler. + */ +static void timesync_onchannelcallback(void *context) +{ + struct vmbus_c...

...was a period when we didn't because of a missing export, but that was since fixed. And with the clocksource code now firmly in place, we can get rid of code that fixes up the wallclock, since this is done in the common infrastructure. This actually fixes a timer bug as well, that was caused by do_settimeofday no longer being callable with interrupts disabled due to the use of on_each_cpu(). Signed-off-by: Zachary Amsden <zach@vmware.com> diff -r 5d41588419ab arch/i386/Kconfig --- a/arch/i386/Kconfig Tue Feb 27 17:24:55 2007 -0800 +++ b/arch/i386/Kconfig Tue Feb 27 17:25:44 2007 -0800 @@ -220,7 +...

...was a period when we didn't because of a missing export, but that was since fixed. And with the clocksource code now firmly in place, we can get rid of code that fixes up the wallclock, since this is done in the common infrastructure. This actually fixes a timer bug as well, that was caused by do_settimeofday no longer being callable with interrupts disabled due to the use of on_each_cpu(). Signed-off-by: Zachary Amsden <zach@vmware.com> diff -r 5d41588419ab arch/i386/Kconfig --- a/arch/i386/Kconfig Tue Feb 27 17:24:55 2007 -0800 +++ b/arch/i386/Kconfig Tue Feb 27 17:25:44 2007 -0800 @@ -220,7 +...

...(clock_was_set_tasklet, timekeeping_clock_was_set_task, 0); + +static void timekeeping_clock_was_set_delayed(void) +{ + tasklet_schedule(&clock_was_set_tasklet); +} + static RAW_NOTIFIER_HEAD(pvclock_gtod_chain); static void update_pvclock_gtod(struct timekeeper *tk) @@ -513,8 +532,7 @@ int do_settimeofday(const struct timespec *tv) write_seqcount_end(&timekeeper_seq); raw_spin_unlock_irqrestore(&timekeeper_lock, flags); - /* signal hrtimers about time change */ - clock_was_set(); + timekeeping_clock_was_set(); return 0; } @@ -557,8 +575,7 @@ error: /* even if we error out, we forw...

...) { - if (clearntp) { + if (action & TK_CLEAR_NTP) { tk->ntp_error = 0; ntp_clear(); } update_vsyscall(tk); update_pvclock_gtod(tk); - if (mirror) + if (action & TK_MIRROR) memcpy(&shadow_timekeeper, &timekeeper, sizeof(timekeeper)); } @@ -508,7 +511,7 @@ int do_settimeofday(const struct timespec *tv) tk_set_xtime(tk, tv); - timekeeping_update(tk, true, true); + timekeeping_update(tk, TK_CLEAR_NTP | TK_MIRROR); write_seqcount_end(&timekeeper_seq); raw_spin_unlock_irqrestore(&timekeeper_lock, flags); @@ -552,7 +555,7 @@ int timekeeping_inject_offset(...

The hv_utils module will be composed of more than one file; rename hv_utils.c to accommodate this without changing the module name. Signed-off-by: K. Y. Srinivasan <ksrinivasan at novell.com> -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: hv_util_cleanup.patch Url:

The hv_utils module will be composed of more than one file; rename hv_utils.c to accommodate this without changing the module name. Signed-off-by: K. Y. Srinivasan <ksrinivasan at novell.com> -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: hv_util_cleanup.patch Url:

Hi, I have done some debugging to find out the root cause of bug 1282, which has the following symptoms with paravirtualized guests: - after a live migrate, the time on the guest can jump - after a live migrate, the guest "forgets" to wake up processes - after a domU save, dom0 reboot and domU restore, the time is correct but processes are not woken up from sys_nanosleep The problem

...c *ts) +{ + unsigned long long wallclock; + wallclock = vmi_timer_ops.get_wallclock(); // nsec units + ts->tv_nsec = do_div(wallclock, 1000000000); + ts->tv_sec = wallclock; +} + +static inline void update_xtime_from_wallclock(void) +{ + struct timespec ts; + vmi_get_wallclock_ts(&ts); + do_settimeofday(&ts); +} + +unsigned long vmi_get_wallclock(void) +{ + struct timespec ts; + vmi_get_wallclock_ts(&ts); + return ts.tv_sec; +} + +int vmi_set_wallclock(unsigned long now) +{ + return -1; +} + +unsigned long long vmi_sched_clock(void) +{ + return read_available_cycles(); +} + +void __init vm...

...c *ts) +{ + unsigned long long wallclock; + wallclock = vmi_timer_ops.get_wallclock(); // nsec units + ts->tv_nsec = do_div(wallclock, 1000000000); + ts->tv_sec = wallclock; +} + +static inline void update_xtime_from_wallclock(void) +{ + struct timespec ts; + vmi_get_wallclock_ts(&ts); + do_settimeofday(&ts); +} + +unsigned long vmi_get_wallclock(void) +{ + struct timespec ts; + vmi_get_wallclock_ts(&ts); + return ts.tv_sec; +} + +int vmi_set_wallclock(unsigned long now) +{ + return -1; +} + +unsigned long long vmi_sched_clock(void) +{ + return read_available_cycles(); +} + +void __init vm...

...c *ts) +{ + unsigned long long wallclock; + wallclock = vmi_timer_ops.get_wallclock(); // nsec units + ts->tv_nsec = do_div(wallclock, 1000000000); + ts->tv_sec = wallclock; +} + +static inline void update_xtime_from_wallclock(void) +{ + struct timespec ts; + vmi_get_wallclock_ts(&ts); + do_settimeofday(&ts); +} + +unsigned long vmi_get_wallclock(void) +{ + struct timespec ts; + vmi_get_wallclock_ts(&ts); + return ts.tv_sec; +} + +int vmi_set_wallclock(unsigned long now) +{ + return -1; +} + +unsigned long long vmi_sched_clock(void) +{ + return read_available_cycles(); +} + +void __init vm...

...c *ts) +{ + unsigned long long wallclock; + wallclock = vmi_timer_ops.get_wallclock(); // nsec units + ts->tv_nsec = do_div(wallclock, 1000000000); + ts->tv_sec = wallclock; +} + +static inline void update_xtime_from_wallclock(void) +{ + struct timespec ts; + vmi_get_wallclock_ts(&ts); + do_settimeofday(&ts); +} + +unsigned long vmi_get_wallclock(void) +{ + struct timespec ts; + vmi_get_wallclock_ts(&ts); + return ts.tv_sec; +} + +int vmi_set_wallclock(unsigned long now) +{ + return -1; +} + +unsigned long long vmi_sched_clock(void) +{ + return read_available_cycles(); +} + +void __init vm...

Unlike full virtualization in which the virtual machine provides the same platform interface as running natively on the hardware, paravirtualization requires modification to the guest operating system to work with the platform interface provided by the hypervisor. Xen was designed with performance in mind. Calls to the hypervisor are minimized, batched if necessary, and non-critical codepaths

Unlike full virtualization in which the virtual machine provides the same platform interface as running natively on the hardware, paravirtualization requires modification to the guest operating system to work with the platform interface provided by the hypervisor. Xen was designed with performance in mind. Calls to the hypervisor are minimized, batched if necessary, and non-critical codepaths