Message ID | 20100714162831.GL4689@redhat.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c index 819b748..80d98cd 100644 --- a/arch/x86/kvm/i8259.c +++ b/arch/x86/kvm/i8259.c @@ -363,10 +363,18 @@ static void pic_ioport_write(void *opaque, u32 addr, u32 val) } } else switch (s->init_state) { - case 0: /* normal mode */ + case 0: { /* normal mode */ + u8 imr_diff = s->imr ^ val; s->imr = val; + for (irq = 0; irq < PIC_NUM_PINS/2; irq++) + if (imr_diff & (1 << irq)) + kvm_fire_mask_notifiers( + s->pics_state->kvm, + SELECT_PIC(irq), irq, + !!(s->imr & (1 << irq))); pic_update_irq(s->pics_state); break; + } case 1: s->irq_base = val & 0xf8; s->init_state = 2;