Commit 90736e20 authored by Zachary Amsden's avatar Zachary Amsden Committed by Andi Kleen

[PATCH] i386: Vmi timer race

Because timer code moves around, and we might eventually move our init to a
late_time_init hook, save and restore IRQs around this code because it is
definitely not interrupt safe.
Signed-off-by: default avatarZachary Amsden <zach@vmware.com>
Signed-off-by: default avatarAndi Kleen <ak@suse.de>
parent ac3b6faf
......@@ -180,7 +180,9 @@ unsigned long long vmi_sched_clock(void)
void __init vmi_time_init(void)
{
unsigned long long cycles_per_sec, cycles_per_msec;
unsigned long flags;
local_irq_save(flags);
setup_irq(0, &vmi_timer_irq);
#ifdef CONFIG_X86_LOCAL_APIC
set_intr_gate(LOCAL_TIMER_VECTOR, apic_vmi_timer_interrupt);
......@@ -224,6 +226,8 @@ void __init vmi_time_init(void)
VMI_ALARM_WIRED_IRQ0 | VMI_ALARM_IS_PERIODIC | VMI_CYCLES_AVAILABLE,
per_cpu(process_times_cycles_accounted_cpu, 0) + cycles_per_alarm,
cycles_per_alarm);
local_irq_restore(flags);
}
#ifdef CONFIG_X86_LOCAL_APIC
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment