2017-10-07 1:25 GMT+08:00 Radim Krčmář <[email protected]>: > preemption timer only looks at tscdeadline and could inject already > disarmed timer. > > Signed-off-by: Radim Krčmář <[email protected]>
Reviewed-by: Wanpeng Li <[email protected]> > --- > arch/x86/kvm/lapic.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c > index 39c1ae11ce1d..96ade848ae0b 100644 > --- a/arch/x86/kvm/lapic.c > +++ b/arch/x86/kvm/lapic.c > @@ -1489,8 +1489,10 @@ static bool set_target_expiration(struct kvm_lapic > *apic) > apic->lapic_timer.period = (u64)kvm_lapic_get_reg(apic, APIC_TMICT) > * APIC_BUS_CYCLE_NS * apic->divide_count; > > - if (!apic->lapic_timer.period) > + if (!apic->lapic_timer.period) { > + apic->lapic_timer.tscdeadline = 0; > return false; > + } > > limit_periodic_timer_frequency(apic); > > -- > 2.14.2 >
