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authorGlauber de Oliveira Costa <gcosta@redhat.com>2008-01-07 11:05:28 -0200
committerRusty Russell <rusty@rustcorp.com.au>2008-01-30 22:50:08 +1100
commitad8d8f3bc61ec712dd141e1029ae68c47fadc4a7 (patch)
tree70bd69e85ef7f159a62f4cd8aa2799d8d542b92c /drivers/lguest/interrupts_and_traps.c
parent73044f05a4ac65f2df42753e9566444b9d2a660f (diff)
downloadlinux-ad8d8f3bc61ec712dd141e1029ae68c47fadc4a7.tar.bz2
lguest: per-vcpu lguest timers
Here, I introduce per-vcpu timers. With this, we can have local expiries, needed for accounting time in smp guests Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'drivers/lguest/interrupts_and_traps.c')
-rw-r--r--drivers/lguest/interrupts_and_traps.c20
1 files changed, 10 insertions, 10 deletions
diff --git a/drivers/lguest/interrupts_and_traps.c b/drivers/lguest/interrupts_and_traps.c
index 2b66f79c208b..22c692aae51c 100644
--- a/drivers/lguest/interrupts_and_traps.c
+++ b/drivers/lguest/interrupts_and_traps.c
@@ -470,13 +470,13 @@ void copy_traps(const struct lguest *lg, struct desc_struct *idt,
* infrastructure to set a callback at that time.
*
* 0 means "turn off the clock". */
-void guest_set_clockevent(struct lguest *lg, unsigned long delta)
+void guest_set_clockevent(struct lg_cpu *cpu, unsigned long delta)
{
ktime_t expires;
if (unlikely(delta == 0)) {
/* Clock event device is shutting down. */
- hrtimer_cancel(&lg->hrt);
+ hrtimer_cancel(&cpu->hrt);
return;
}
@@ -484,25 +484,25 @@ void guest_set_clockevent(struct lguest *lg, unsigned long delta)
* all the time between now and the timer interrupt it asked for. This
* is almost always the right thing to do. */
expires = ktime_add_ns(ktime_get_real(), delta);
- hrtimer_start(&lg->hrt, expires, HRTIMER_MODE_ABS);
+ hrtimer_start(&cpu->hrt, expires, HRTIMER_MODE_ABS);
}
/* This is the function called when the Guest's timer expires. */
static enum hrtimer_restart clockdev_fn(struct hrtimer *timer)
{
- struct lguest *lg = container_of(timer, struct lguest, hrt);
+ struct lg_cpu *cpu = container_of(timer, struct lg_cpu, hrt);
/* Remember the first interrupt is the timer interrupt. */
- set_bit(0, lg->irqs_pending);
+ set_bit(0, cpu->lg->irqs_pending);
/* If the Guest is actually stopped, we need to wake it up. */
- if (lg->halted)
- wake_up_process(lg->tsk);
+ if (cpu->lg->halted)
+ wake_up_process(cpu->lg->tsk);
return HRTIMER_NORESTART;
}
/* This sets up the timer for this Guest. */
-void init_clockdev(struct lguest *lg)
+void init_clockdev(struct lg_cpu *cpu)
{
- hrtimer_init(&lg->hrt, CLOCK_REALTIME, HRTIMER_MODE_ABS);
- lg->hrt.function = clockdev_fn;
+ hrtimer_init(&cpu->hrt, CLOCK_REALTIME, HRTIMER_MODE_ABS);
+ cpu->hrt.function = clockdev_fn;
}