Displaying 6 results from an estimated 6 matches for "local_tsc_stamp".
2008 Nov 25
7
when timer go back in dom0 save and restore or migrate, PV domain hung
...6/time.c Tue Nov 18 14:34:14 2008 +0800
+++ b/xen/arch/x86/time.c Fri Nov 21 17:34:15 2008 +0800
@@ -689,7 +689,6 @@
wmb();
(*version)++;
}
-
void update_vcpu_system_time(struct vcpu *v)
{
struct cpu_time *t;
@@ -703,7 +702,6 @@
if ( u->tsc_timestamp == t->local_tsc_stamp )
return;
-
version_update_begin(&u->version);
u->tsc_timestamp = t->local_tsc_stamp;
@@ -713,14 +711,19 @@
version_update_end(&u->version);
}
-
void update_domain_wallclock_time(struct domain *d)
{
spin_lock(&wc_lock);
+ if(d->a...
2012 Mar 20
5
[hybrid]: hang in update_wall_time
Hi Ian/Stefano:
I changed over to the PV clock for hybrid liked we talked at the
hackathon. I still have the hang in update_wall_time() after dom0
switches to xen as clocksource.
The source of hang seems to be in xen stime_local_stamp in cpu_time that
suddenly jumps to a large 64bit value. I''ve been chasing to figure
where that happens, and why for the hybrid and not PV. It appears the
2008 Nov 27
1
Re： RE: Re： Re: when timer go back in dom0 save and restore ormigrate, PV domain hung
...89,6 @@
wmb();
(*version)++;
}
-
void update_vcpu_system_time(struct vcpu
*v)
{
struct cpu_time *t;
@@ -703,7 +702,6 @@
if ( u->tsc_timestamp == t->local_tsc_stamp
)
return;
-
version_update_begin(&u->version);
u->tsc_timestamp = t->local_tsc_stamp;
@@ -713,14 +711,19 @@
version_update_end(&u->version);
}
-
void update_do...
2007 Aug 30
0
[PATCH][Retry 1] 1/4: cpufreq/PowerNow! in Xen: Xen timer changes
...mult = new_mult >> 1;
+ }
+ while (new_mult < (1LL << 31)) {
+ new_shift -= 1;
+ new_mult = new_mult << 1;
+ }
+
+ t->tsc_scale.mul_frac = new_mult;
+ t->tsc_scale.shift = new_shift;
+ local_irq_disable();
+ rdtscll(curr_tsc);
+ t->local_tsc_stamp = curr_tsc;
+ t->stime_local_stamp = get_s_time();
+ t->stime_master_stamp = read_platform_stime();
+ local_irq_enable();
+
+ platform_time_calibration();
+}
+
/* Set clock to <secs,usecs> after 00:00:00 UTC, 1 January, 1970. */
void do_settime(unsigned long secs, unsigned...
2007 May 15
3
[PATCH 1/12] Add suspend/resume to devices owned by Xen
...unsigned long secs, unsi
rcu_read_unlock(&domlist_read_lock);
}
+static int on_resume;
static void local_time_calibration(void *unused)
{
struct cpu_time *t = &this_cpu(cpu_time);
@@ -872,7 +953,8 @@ void init_percpu_time(void)
local_irq_save(flags);
rdtscll(t->local_tsc_stamp);
- now = (smp_processor_id() == 0) ? 0 : read_platform_stime();
+ now = ((smp_processor_id() == 0) && !on_resume) ?
+ 0 : read_platform_stime();
local_irq_restore(flags);
t->stime_master_stamp = now;
@@ -881,6 +963,11 @@ void init_percpu_time(void)...
2006 Oct 04
0
[PATCH,RFC 6/17] 32-on-64 shared info handling
...v, time);
version_update_begin(&u->version);
@@ -690,7 +690,7 @@ static inline void __update_vcpu_system_
void update_vcpu_system_time(struct vcpu *v)
{
- if ( v->vcpu_info->time.tsc_timestamp !=
+ if ( vcpu_info(v, time.tsc_timestamp) !=
this_cpu(cpu_time).local_tsc_stamp )
__update_vcpu_system_time(v);
}
@@ -698,10 +698,10 @@ void update_vcpu_system_time(struct vcpu
void update_domain_wallclock_time(struct domain *d)
{
spin_lock(&wc_lock);
- version_update_begin(&d->shared_info->wc_version);
- d->shared_info->wc_sec = wc_...