diff options
| author | Marcelo Tosatti <mtosatti@redhat.com> | 2009-06-04 15:08:21 -0300 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2009-09-10 08:32:48 +0300 |
| commit | 9f4cc12765ea48a40347449d6802a3322ced8709 (patch) | |
| tree | 8b22c88af2cb593905a61998729563b1717a22bd /arch | |
| parent | 238adc77051ab19b35663e7f214f52eaf44ed7ef (diff) | |
| download | linux-9f4cc12765ea48a40347449d6802a3322ced8709.tar.bz2 | |
KVM: Grab pic lock in kvm_pic_clear_isr_ack
isr_ack is protected by kvm_pic->lock.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/i8259.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c index 2520922282d5..bf94a45f4f86 100644 --- a/arch/x86/kvm/i8259.c +++ b/arch/x86/kvm/i8259.c @@ -72,8 +72,10 @@ static void pic_clear_isr(struct kvm_kpic_state *s, int irq) void kvm_pic_clear_isr_ack(struct kvm *kvm) { struct kvm_pic *s = pic_irqchip(kvm); + pic_lock(s); s->pics[0].isr_ack = 0xff; s->pics[1].isr_ack = 0xff; + pic_unlock(s); } /* |