From ad8d8f3bc61ec712dd141e1029ae68c47fadc4a7 Mon Sep 17 00:00:00 2001 From: Glauber de Oliveira Costa Date: Mon, 7 Jan 2008 11:05:28 -0200 Subject: 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 Signed-off-by: Rusty Russell --- drivers/lguest/interrupts_and_traps.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) (limited to 'drivers/lguest/interrupts_and_traps.c') diff --git a/drivers/lguest/interrupts_and_traps.c b/drivers/lguest/interrupts_and_traps.c index 2b66f79..22c692a 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; } -- cgit v1.1